graphbook: Use a scrolledwindow instead of ViewPort

In order to support the zoom, the graphbook must be
a scrolled window and not a ViewPort

.gitignore

@@ -1 +1,4 @@
 /target
+*.log
+src/config.rs
+subprojects/*/

.gitlab-ci.yml

@@ -2,22 +2,37 @@ include:
   - project: "freedesktop/ci-templates" # the project to include from
     ref: "34f4ade99434043f88e164933f570301fd18b125" # git ref of that project
     file: "/templates/fedora.yml" # the actual file to include
+  - local: "ci/images_template.yml"
 
 stages:
   - prepare
   - lint
   - test
-  - extras
+  - release
+  - deploy
 
 variables:
   FDO_UPSTREAM_REPO: "dabrain34/GstPipelineStudio"
+  GNOME_RUNTIME_IMAGE: "quay.io/gnome_infrastructure/gnome-runtime-images:gnome-master"
+  WINDOWS_RUST_STABLE_IMAGE: "$CI_REGISTRY_IMAGE/windows:$GST_RS_WIN_IMG_TAG"
+  WINDOWS_RUST_STABLE_UPSTREAM_IMAGE: "$CI_REGISTRY/$FDO_UPSTREAM_REPO/windows:$GST_RS_WIN_IMG_TAG"
 
 # Version and tag for our current container
 .fedora:
   variables:
-    FDO_DISTRIBUTION_VERSION: "35"
+    FDO_DISTRIBUTION_VERSION: "38"
     # Update this to trigger a container rebuild
-    FDO_DISTRIBUTION_TAG: "2022-01-07.2"
+    FDO_DISTRIBUTION_TAG: $GST_RS_FDO_IMG_TAG
+  before_script:
+    - source ./ci/env.sh
+    - mkdir .cargo && echo -e "[net]\ngit-fetch-with-cli = true" > .cargo/config
+    # If cargo exists assume we probably will want to update
+    # the lockfile
+    #- |
+    #  if command -v cargo; then
+    #    cargo generate-lockfile --color=always
+    #    cargo update --color=always
+    #  fi
 
 build-fedora-container:
   extends:
@@ -27,10 +42,6 @@ build-fedora-container:
   variables:
     # clang-devel: required by rust bindgen
     FDO_DISTRIBUTION_PACKAGES: >-
-      rust
-      cargo
-      rustfmt
-      clippy
       gtk4-devel
       clang-devel
       gstreamer1-devel
@@ -41,18 +52,124 @@ build-fedora-container:
       python3-devel
       python3-pip
       python3-setuptools
+      util-linux
+      xorg-x11-server-Xvfb
+      wget
+      git
+      flex
+      bison
     FDO_DISTRIBUTION_EXEC: >-
-      pip3 install meson
+      ci/install-rust.sh stable &&
+      pip3 install meson &&
+      pip3 install pre-commit
 
-rustfmt:
+.windows rust docker build:
+  stage: prepare
+  variables:
+    # Unlike the buildah/linux jobs, this file
+    # needs to be relative to windows-docker/ subdir
+    # as it makes life easier in the powershell script
+    #
+    # We also don't need a CONTEXT_DIR var as its also
+    # hardcoded to be windows-docker/
+    DOCKERFILE: "ci/windows-docker/Dockerfile"
+    GST_UPSTREAM_BRANCH: "1.22"
+  tags:
+    - "windows"
+    - "shell"
+    - "2022"
+  script:
+    # We need to pass an array and to resolve the env vars, so we can't use a variable:
+    - $DOCKER_BUILD_ARGS = @("--build-arg", "DEFAULT_GST_BRANCH=$GST_UPSTREAM_BRANCH", "--build-arg", "RUST_VERSION=$RUST_VERSION")
+    - "& ci/windows-docker/container.ps1 $CI_REGISTRY $CI_REGISTRY_USER $CI_REGISTRY_PASSWORD $RUST_IMAGE $RUST_UPSTREAM_IMAGE $DOCKERFILE"
+    - |
+      if (!($?)) {
+        echo "Failed to build the image"
+        Exit 1
+      }
+
+windows rust docker stable:
+  extends: ".windows rust docker build"
+  variables:
+    RUST_IMAGE: $WINDOWS_RUST_STABLE_IMAGE
+    RUST_UPSTREAM_IMAGE: $WINDOWS_RUST_STABLE_UPSTREAM_IMAGE"]
+    RUST_VERSION: $GST_RS_STABLE
+
+.msvc2019 build:
+  stage: test
+  tags:
+    - "docker"
+    - "windows"
+    - "2022"
+
+windows installer stable:
+  needs:
+    - job: "windows rust docker stable"
+      artifacts: false
+  image: "$WINDOWS_RUST_STABLE_IMAGE"
+  extends: ".msvc2019 build"
+  script:
+    - rustc --version
+    - git fetch --tags
+    - "& ./ci/build_gps.ps1"
+    - "& ./installer/wix/prepare_gstreamer.ps1"
+    - "& ./installer/wix/build_installer.ps1"
+  artifacts:
+    paths:
+      - installer/wix/*.msi
+    expire_in: 10 days
+  when: "manual"
+
+pre-commit:
+  stage: "lint"
+  extends:
+    - .fedora
+    - .fdo.distribution-image@fedora
+  variables:
+    PRE_COMMIT_HOME: ${CI_PROJECT_DIR}/.cache/pre-commit
+  cache:
+    paths:
+      - ${PRE_COMMIT_HOME}
+  script:
+    - meson setup build
+    - pre-commit run --all-files
+
+clippy:
   extends:
     - .fedora
     - .fdo.distribution-image@fedora
   stage: lint
   script:
     - meson build
-    - cargo fmt --version
-    - cargo fmt -- --color=always --check
+    - cargo clippy --version
+    - cargo clippy --color=always --all-targets -- -D warnings
+
+windows installer release:
+  extends: "windows installer stable"
+  stage: release
+  only:
+    - flatpak
+    - tags
+  artifacts:
+    paths:
+      - installer/wix/*.msi
+  when: "always"
+
+linux release:
+  extends:
+    - .fedora
+    - .fdo.distribution-image@fedora
+  stage: release
+  only:
+    - flatpak
+    - tags
+  script:
+    - meson builddir -Dbuildtype=release
+    - ninja -C builddir/ dist
+  artifacts:
+    paths:
+      - builddir/meson-dist/*
+  when: "always"
 
 test-stable:
   extends:
@@ -63,13 +180,18 @@ test-stable:
     - meson build
     - rustc --version
     - cargo build --color=always --all-targets
-    - cargo test --color=always
+    - >
+      xvfb-run -a -s "-screen 0 1024x768x24"
+      cargo test --color=always
 
 rustdoc:
   extends:
     - .fedora
     - .fdo.distribution-image@fedora
-  stage: extras
+  stage: release
+  only:
+    - flatpak
+    - tags
   variables:
     RUSTDOCFLAGS: "-Dwarnings"
   script:
@@ -77,12 +199,98 @@ rustdoc:
     - rustdoc --version
     - cargo doc --no-deps
 
-clippy:
+dist-package:
   extends:
     - .fedora
     - .fdo.distribution-image@fedora
-  stage: extras
+  stage: release
+  only:
+    - flatpak
   script:
     - meson build
-    - cargo clippy --version
-    - cargo clippy --color=always --all-targets -- -D warnings
+    - ninja -C build dist
+
+flatpak:
+  image: $GNOME_RUNTIME_IMAGE
+  stage: test
+  variables:
+    MANIFEST_PATH: "build-aux/org.freedesktop.dabrain34.GstPipelineStudio.Devel.json"
+    APP_ID: "org.freedesktop.dabrain34.GstPipelineStudio.Devel"
+    BUNDLE: "gst-pipeline-studio-nightly.flatpak"
+  script:
+    - flatpak-builder app ${MANIFEST_PATH}
+    - flatpak build-export repo app
+    - flatpak build-bundle repo ${BUNDLE} ${APP_ID}
+  artifacts:
+    name: "Flatpak artifacts"
+    expose_as: "Get Flatpak bundle here"
+    when: "always"
+    paths:
+      - "${BUNDLE}"
+    expire_in: 14 days
+  cache:
+    key: "flatpak"
+    paths:
+      - .flatpak-builder/downloads/
+      - .flatpak-builder/git/
+      - target/
+      - target_test/
+  when: "manual"
+
+macos installer stable:
+  stage: test
+  tags:
+    - gst-macos-13
+  before_script:
+    - pip3 install --upgrade pip
+    # Make sure meson is up to date
+    - pip3 install -U meson
+    # Need to install certificates for python
+    - pip3 install --upgrade certifi
+    # Another way to install certificates
+    - open /Applications/Python\ 3.8/Install\ Certificates.command
+    # Get ninja
+    - pip3 install -U ninja
+  script:
+    # rust toolchain
+    - curl https://sh.rustup.rs -sSf | sh -s -- -y
+    - source $HOME/.cargo/env
+    # brew install
+    - /bin/bash -c "./installer/macos/brew_setup.sh"
+    - /bin/bash -c "./installer/macos/deploy_macos.sh"
+  artifacts:
+    name: "MacOS installer"
+    paths:
+      - installer/**/GstPipelineStudio*.dmg
+      - installer/**/GstPipelineStudio*.tar.gz
+    expire_in: 14 days
+  when: "manual"
+
+macos installer release:
+  extends: "macos installer stable"
+  stage: release
+  only:
+    - flatpak
+    - tags
+  artifacts:
+    name: "MacOS installer"
+    paths:
+      - installer/**/GstPipelineStudio*.dmg
+      - installer/**/GstPipelineStudio*.tar.gz
+  when: "always"
+
+pages:
+  image: ruby:2.7
+  stage: deploy
+  script:
+    - gem install bundler -v 2.4.22
+    - bundle install
+    - bundle exec jekyll build -d public
+  artifacts:
+    paths:
+      # The folder that contains the files to be exposed at the Page URL
+      - public
+  rules:
+    # This ensures that only pushes to the default branch will trigger
+    # a pages deploy
+    - if: $CI_COMMIT_REF_NAME == $CI_DEFAULT_BRANCH

.gitlab/issue_templates/Bug.md

@@ -0,0 +1,41 @@
+### Describe your issue
+
+<!-- a clear and concise summary of the bug. -->
+<!-- For any GStreamer usage question, please contact the community using the #gstreamer channel on IRC https://www.oftc.net/ or the mailing list on https://gstreamer.freedesktop.org/lists/ -->
+
+#### Expected Behavior
+
+<!-- What did you expect to happen -->
+
+#### Observed Behavior
+
+<!-- What actually happened -->
+
+#### Setup
+
+- **Operating System:**
+- **Device:** Computer / Tablet / Mobile / Virtual Machine <!-- Delete as appropriate !-->
+- **Flatpak:** Yes/No
+- **GstPipelineStudio version:**
+- **GStreamer Version:**
+
+### Steps to reproduce the bug
+
+<!-- please fill in exact steps which reproduce the bug on your system, for example: -->
+
+1. open terminal
+2. type `command`
+
+### How reproducible is the bug?
+
+<!-- The reproducibility of the bug is Always/Intermittent/Only once after doing a very specific set of steps-->
+
+### Screenshots if relevant
+
+### Solutions you have tried
+
+### Related non-duplicate issues
+
+### Additional Information
+
+<!-- Any other information such as logs. Make use of <details> for long output -->

.gitlab/issue_templates/Default.md

@@ -0,0 +1,41 @@
+### Describe your issue
+
+<!-- a clear and concise summary of the bug. -->
+<!-- For any GStreamer usage question, please contact the community using the #gstreamer channel on IRC https://www.oftc.net/ or the mailing list on https://gstreamer.freedesktop.org/lists/ -->
+
+#### Expected Behavior
+
+<!-- What did you expect to happen -->
+
+#### Observed Behavior
+
+<!-- What actually happened -->
+
+#### Setup
+
+- **Operating System:**
+- **Device:** Computer / Tablet / Mobile / Virtual Machine <!-- Delete as appropriate !-->
+- **Flatpak:** Yes/No
+- **GstPipelineStudio version:**
+- **GStreamer Version:**
+
+### Steps to reproduce the bug
+
+<!-- please fill in exact steps which reproduce the bug on your system, for example: -->
+
+1. open terminal
+2. type `command`
+
+### How reproducible is the bug?
+
+<!-- The reproducibility of the bug is Always/Intermittent/Only once after doing a very specific set of steps-->
+
+### Screenshots if relevant
+
+### Solutions you have tried
+
+### Related non-duplicate issues
+
+### Additional Information
+
+<!-- Any other information such as logs. Make use of <details> for long output -->

.gitlab/issue_templates/RFC.md

@@ -0,0 +1,12 @@
+### Describe your RFC
+
+<!-- a clear and concise summary of the RFC. -->
+<!-- For any GStreamer usage question, please contact the community using the #gstreamer channel on IRC https://www.oftc.net/ or the mailing list on https://gstreamer.freedesktop.org/lists/ -->
+
+#### Expected Behavior
+
+<!-- What did you expect to happen -->
+
+### Related non-duplicate issues
+
+### Additional Information

.pre-commit-config.yaml

@@ -0,0 +1,29 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.2.0
+    hooks:
+      - id: trailing-whitespace
+      - id: check-yaml
+      - id: check-added-large-files
+
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    # Ruff version.
+    rev: v0.1.11
+    hooks:
+      # Run the linter.
+      - id: ruff
+      # Run the formatter.
+      - id: ruff-format
+
+  - repo: https://github.com/crate-ci/typos
+    rev: v1.17.0
+    hooks:
+      - id: typos
+        exclude: '^$|\.svg$'
+
+  - repo: https://github.com/doublify/pre-commit-rust
+    rev: v1.0
+    hooks:
+      - id: fmt

Cargo.toml

@@ -1,19 +1,35 @@
 [package]
-name = "gst_pipeline_studio"
-version = "0.1.0"
+name = "gst-pipeline-studio"
+version = "0.3.5"
 edition = "2018"
+rust-version = "1.70.0"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-gtk = { version = "0.3", package = "gtk4" }
+gtk = { version = "0.8.2", package = "gtk4" }
+gst = { package = "gstreamer", version = "0.22.2" }
+gst-plugin-gtk4 = { version = "0.12.1", optional=true }
 anyhow = "1"
-gettext-rs = {version = "0.7", features = ["gettext-system"]}
-glib = "0.14"
-gstreamer = "0.17"
 log = "0.4.11"
 once_cell = "1.7.2"
 xml-rs = "0.8.4"
-x11 = { version = "2.18", features = ["xlib"] }
 serde = "1.0"
-serde_any = "0.5"
+serde_any = "0.5"
+simplelog = "0.11.2"
+futures-channel = "0.3"
+lazy_static = "1.4"
+chrono = "0.4"
+structopt = "0.3"
+async-channel = "2.0.0"
+
+
+[dev-dependencies]
+futures-executor = "0.3"
+
+[features]
+default = ["gtk4-plugin"]
+gtk4-plugin = ["gst-plugin-gtk4"]
+
+[profile.release]
+strip = "debuginfo"

ChangeLog.md

@@ -0,0 +1,127 @@
+## 0.1.0
+
+- [x] Fix c.fill issue
+- [x] Create Element structure with pads and connections
+- [x] Get a list of GStreamer elements in dialog add plugin
+- [x] Add plugin details in the element dialog
+- [x] Draw element with its pad
+- [x] Be able to move the element on Screen
+- [x] Create connection between element
+- [x] create contextual menu on pad or element
+- [x] save/load pipeline
+- [x] Run a pipeline with GStreamer
+- [x] Run the pipeline with GStreamer
+- [x] Control the pipeline with GStreamer
+- [x] select nodes/links with a Trait Selectable
+- [x] be able to remove a link by selecting it
+- [x] Connect the logs to the window
+- [x] Define the license
+- [x] crash with x11 on contextual menu
+- [x] open multiple times dialog (About) prevent to close it.
+- [x] remove useless code from graphview
+- [x] Move render to a specific module
+- [x] Move GST render to a specific module
+
+## 0.2.0
+
+### Graphview
+
+- [x] Remove a port from a node when its possible (Presence support)
+- [x] Implement graphview unit test
+- [x] Add a css class for pad (presence always or sometimes)
+- [x] Add properties to Port to store some specific value (ie Caps)
+- [x] Unable to connect a port which is already connected
+- [x] Unable to connect port with same directions (in/in, out/out)
+
+### GStreamer:
+
+- [x] Add seek support
+- [x] Use of gtk4paintablesink
+
+### app
+
+- [x] Check that a node accepts to create a port on request (input/output)
+- [x] Render the parse launch line in a message box
+- [x] Prevent to create a pad in an element without the template
+- [x] Check the pipeline validity
+- [x] Save node position in XML
+- [x] Auto-save the graph
+- [x] Logger in file/app all over the app
+- [x] Property window in the main window
+- [x] Connect the GPS status to GST status
+- [x] Display position and duration
+- [x] Seek to position with slider
+- [x] One listbox with elements and one listbox with favorites in the app dashboard
+- [x] See the link creation with a dashed line
+- [x] Display pad properties with tooltip hover
+- [x] Add preferences dialog
+- [x] Create a window for the video output
+
+### infra
+
+- [x] Icon install
+- [x] Flatpak infrastructure
+
+## 0.2.1
+
+### app
+
+- [x] Can set pad properties to be used during the pipeline generation. See videomixer_alpha.xml
+- [x] Support gtk4paintablesink with playbin
+- [x] Display a pipeline properties dialog (list elements)
+
+## 0.2.2
+
+### app
+
+- [x] Remove quit as it's unnecessary with close button
+- [x] Remove the close button in dialogs (properties etc.)
+- [x] Unable to use flags in playbin3
+- [x] the desktop icon execs gps_pipeline_studio
+- [x] move burger menu on the right
+
+### Graphview
+
+- [x] Update node description on property removal
+
+## 0.3.0
+
+### CI/Infra
+- [x] Create a macos installer
+- [x] Create a windows installer
+
+### Graphview
+- [x] set/get the file format version
+
+### GStreamer
+- [x] Display GStreamer version in the about dialog
+
+## 0.3.1
+### app
+ - [x] Add multiple graphviews with tabs.
+ - [x] handle the caps setter element
+
+## 0.3.2
+### app
+- [x] check that element exists before creating it on file load.
+
+## 0.3.3
+
+### app
+ - [x] Fix MacOs GTK runtime dependencies
+ - [x] Fix the maximize call with MacOS
+ - [x] Fix the default size at GTK save/load state
+
+## 0.3.4
+
+### app
+  - [x] Fix first run when application folder has not been created, fixes #23
+  - [x] Fix windows installer to bring share folder and let filesrc work properly, fixes #24
+
+## 0.3.5
+
+### app
+  - [x] logs: receive multiple log sources such as GST logs and messages.
+  - [x] settings: add a log level selection
+  - [x] rename gst_pipeline_studio to gst-pipeline-studio
+  - [x] can open a pipeline from the command line

Gemfile

@@ -0,0 +1,3 @@
+source "https://rubygems.org"
+
+gem "jekyll"

README.md

@@ -1,4 +1,17 @@
-# GstPipelineStudio: Draw your own GStreamer pipeline ...
+
+# [GstPipelineStudio](https://dabrain34.pages.freedesktop.org/GstPipelineStudio): Draw your own GStreamer pipeline ...
+
+## Important
+
+Until version 1.0, this software should be considered as **unstable**.
+The settings moreover the graph file format might change over the development phase.
+
+
+## Description
+
+GstPipelineStudio aims to provide a graphical user interface to the GStreamer framework. From a first step in the framework with a simple pipeline to a complex pipeline debugging, the tool provides a friendly interface to add elements to a pipeline and debug it.
+
+![alt tag](data/screenshots/gps_screenshot.png)
 
 ## Setup
 
@@ -13,7 +26,7 @@ Check https://rustup.rs for alternative installation options.
 ### Ubuntu/Debian/etc
 
 ```sh
-apt install python3-pip ninja-build pkgconfig
+apt install python3-pip ninja-build pkg-config
 pip3 install --user meson
 apt install libgtk-4-dev libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
 ```
@@ -26,9 +39,46 @@ pip3 install meson
 dnf install gtk4-devel gstreamer1-devel gstreamer1-plugins-base-devel python3-pip ninja-build pkgconfig
 ```
 
+### MacOS
+
+```sh
+brew install gtk4
+brew install gstreamer gst-plugins-base gst-plugins-bad
+```
+
 ## Getting started
 
 ```sh
-meson builddir
-cargo run
+$ meson builddir -Dbuildtype=release
+$ ninja -C builddir
+$ ./builddir/target/release/gst-pipeline-studio
 ```
+
+## Flatpak
+
+The application is also available on [Flathub](https://flathub.org/apps/details/org.freedesktop.dabrain34.GstPipelineStudio).
+
+## License
+
+GstPipelineStudio is distributed under the terms of the GPL3 license.
+See LICENSE for more information.
+
+## Credits
+
+GstPipelineStudio wouldn't exist without free and open-source software such as
+GLib, GStreamer, GTK and many more.
+
+This project has been also possible thanks to amazing projects such as:
+
+- [pipeviz](https://github.com/virinext/pipeviz)
+- [helvum](https://gitlab.freedesktop.org/ryuukyu/helvum)
+
+## Contributing
+
+Every contribution is greatly appreciated! You will just need a [gitlib account](https://gitlab.freedesktop.org/users/sign_in?redirect_to_referer=yes). [Fork](https://docs.gitlab.com/ee/user/project/repository/forking_workflow.html) this repo, [clone](http://git-scm.com/docs/git-clone) your fork, create a [feature branch](https://www.google.com/search?q=git+feature+branches), [commit](http://git-scm.com/docs/git-commit), [push](http://git-scm.com/docs/git-push) and submit a [merge request](https://docs.gitlab.com/ee/user/project/merge_requests/creating_merge_requests.html).
+
+Submit any suggestions, questions or bugs to the [Issue Tracker](https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio/-/issues/).
+
+## Troubleshooting
+
+Interface is not clean: rm ~/.config/org.freedesktop.dabrain34.GstPipelineStudio/settings.toml

TODO.md

@@ -1,56 +1,34 @@
-## 0.1.0
-
-- [x] Fix c.fill issue
-- [x] Create Element structure with pads and connections
-- [x] Get a list of GStreamer elements in dialog add plugin
-- [x] Add plugin details in the element dialog
-- [x] Draw element with its pad
-- [x] Be able to move the element on Screen
-- [x] Create connection between element
-- [x] create contextual menu on pad or element
-- [x] save/load pipeline
-- [x] Run a pipeline with GStreamer
-- [x] Run the pipeline with GStreamer
-- [x] Control the pipeline with GStreamer
-- [x] select nodes/links with a Trait Selectable
-- [x] be able to remove a link by selecting it
-- [x] Connect the logs to the window
-- [x] Define the license
-- [x] crash with x11 on contextual menu
-- [x] open multiple times dialog (About) prevent to close it.
-- [x] remove useless code from graphview
-- [x] Move render to a specific module
-- [x] Move GST render to a specific module
-
 ## TODO
 
-- [ ] Control the connection between element
-  - [x] unable to connect in and in out and out
-  - [ ] unable to connect element with incompatible caps.
-  - [x] unable to connect a port which is already connected
+### Graphview
+
 - [ ] create a crate for graphview/node/port
-- [ ] check that a node accept to create a port on request (input/output)
-- [ ] Create a window for the video output
-- [ ] Add multiple graphviews with tabs.
-- [ ] Property window in the main window
-- [ ] Connect the GPS status to GST status
-- [ ] Implement graph dot render/load
-- [ ] Implement a command line parser to graph
-- [ ] Unable to create a pad in an element without the template
-- [ ] Remove a pad from a node
-- [ ] Implement graphview unit test
+
+
+### GStreamer:
+
 - [ ] Implement pipeline unit test
-- [ ] Save node position in XML
-- [ ] Autosave the graph
-- [ ] Check the pîpeline live
-- [ ] Display pad properties with tooltip hover
+
+### app
+
+- [ ] Control the connection between element
+- [ ] unable to connect element with incompatible caps.
+- [ ] Implement graph dot render/load
+- [ ] Add probes on each pad to monitor the pipeline
 - [ ] Render a media file
 - [ ] Offer compatible element to a pad (autorender)
 - [ ] Display tags/meta/message detected
-- [ ] Seek to position
-- [ ] Icon install
-- [ ] Flatpak infrastructure
+- [ ] Change TreeView to ListView
+- [ ] Implement zoom on the view (https://gitlab.gnome.org/World/obfuscate/-/blob/master/src/widgets/drawing_area.rs)
+- [ ] reopen the last log on prematured exit (crash)
+- [ ] Play/pause should be prevented until the pipeline is ready
+- [ ] Filter the elements by class/rank etc.
+- [ ] double click on node/pad open the properties
+
+
 
 ## bugs
 
-- [ ] check that element exists before creating it on file load.
+- [ ] Combo box is not well selected if the value is not linear such as flags. See flags in playbin
+- [ ] opening a graph file can lead a different behavior in the pipeline. See videomixer graph where the zorder
+      on pads is not correctly set to right one.

VERSION

@@ -0,0 +1 @@
+0.3.5

build-aux/cargo.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+
+import sys
+import subprocess
+import os
+import shutil
+
+env = os.environ
+
+MESON_BUILD_ROOT = sys.argv[1]
+MESON_SOURCE_ROOT = sys.argv[2]
+CARGO_TARGET_DIR = os.path.join(MESON_BUILD_ROOT, "target")
+env["CARGO_TARGET_DIR"] = CARGO_TARGET_DIR
+env["CARGO_HOME"] = os.path.join(CARGO_TARGET_DIR, "cargo-home")
+OUTPUT = sys.argv[3]
+BUILDTYPE = sys.argv[4]
+APP_BIN = sys.argv[5]
+env["PKG_CONFIG_PATH"] = (
+    os.path.join(MESON_BUILD_ROOT, "meson-uninstalled")
+    + os.pathsep
+    + env.get("PKG_CONFIG_PATH", "")
+)
+
+
+if BUILDTYPE == "release":
+    print("RELEASE MODE")
+    CMD = [
+        "cargo",
+        "build",
+        "--manifest-path",
+        os.path.join(MESON_SOURCE_ROOT, "Cargo.toml"),
+        "--release",
+    ]
+    subprocess.run(CMD, env=env)
+    shutil.copy2(os.path.join(CARGO_TARGET_DIR, "release", APP_BIN), OUTPUT)
+else:
+    print("DEBUG MODE")
+    CMD = [
+        "cargo",
+        "build",
+        "--manifest-path",
+        os.path.join(MESON_SOURCE_ROOT, "Cargo.toml"),
+    ]
+    subprocess.run(CMD, env=env)
+    shutil.copy2(os.path.join(CARGO_TARGET_DIR, "debug", APP_BIN), OUTPUT)

build-aux/cargo.sh

@@ -1,24 +0,0 @@
-#!/bin/sh
-
-export MESON_BUILD_ROOT="$1"
-export MESON_SOURCE_ROOT="$2"
-export CARGO_TARGET_DIR="$MESON_BUILD_ROOT"/target
-export CARGO_HOME="$CARGO_TARGET_DIR"/cargo-home
-export OUTPUT="$3"
-export BUILDTYPE="$4"
-export APP_BIN="$5"
-
-
-if [ $BUILDTYPE = "release" ]
-then
-    echo "RELEASE MODE"
-    cargo build --manifest-path \
-        "$MESON_SOURCE_ROOT"/Cargo.toml --release && \
-        cp "$CARGO_TARGET_DIR"/release/"$APP_BIN" "$OUTPUT"
-else
-    echo "DEBUG MODE"
-    cargo build --manifest-path \
-        "$MESON_SOURCE_ROOT"/Cargo.toml && \
-        cp "$CARGO_TARGET_DIR"/debug/"$APP_BIN" "$OUTPUT"
-fi
-

build-aux/meson/postinstall.py

@@ -3,19 +3,17 @@
 from os import environ, path
 from subprocess import call
 
-prefix = environ.get('MESON_INSTALL_PREFIX', '/usr/local')
-datadir = path.join(prefix, 'share')
-destdir = environ.get('DESTDIR', '')
+prefix = environ.get("MESON_INSTALL_PREFIX", "/usr/local")
+datadir = path.join(prefix, "share")
+destdir = environ.get("DESTDIR", "")
 
 # Package managers set this so we don't need to run
 if not destdir:
-    print('Updating icon cache...')
-    call(['gtk-update-icon-cache', '-qtf', path.join(datadir, 'icons', 'hicolor')])
-
-    print('Updating desktop database...')
-    call(['update-desktop-database', '-q', path.join(datadir, 'applications')])
-
-    print('Compiling GSettings schemas...')
-    call(['glib-compile-schemas', path.join(datadir, 'glib-2.0', 'schemas')])
+    print("Updating icon cache...")
+    call(["gtk-update-icon-cache", "-qtf", path.join(datadir, "icons", "hicolor")])
 
+    print("Updating desktop database...")
+    call(["update-desktop-database", "-q", path.join(datadir, "applications")])
 
+    print("Compiling GSettings schemas...")
+    call(["glib-compile-schemas", path.join(datadir, "glib-2.0", "schemas")])

build-aux/org.freedesktop.dabrain34.GstPipelineStudio.Devel.json

@@ -0,0 +1,62 @@
+{
+  "app-id": "org.freedesktop.dabrain34.GstPipelineStudio.Devel",
+  "runtime": "org.gnome.Platform",
+  "runtime-version": "master",
+  "sdk": "org.gnome.Sdk",
+  "sdk-extensions": [
+    "org.freedesktop.Sdk.Extension.rust-stable"
+  ],
+  "command": "gst-pipeline-studio",
+  "finish-args": [
+    "--socket=fallback-x11",
+    "--socket=wayland",
+    "--device=dri",
+    "--share=ipc",
+    "--share=network",
+    "--filesystem=home",
+    "--env=G_MESSAGES_DEBUG=none",
+    "--env=RUST_BACKTRACE=1"
+  ],
+  "build-options": {
+    "append-path": "/usr/lib/sdk/rust-stable/bin",
+    "build-args": [
+      "--share=network"
+    ],
+    "test-args": [
+      "--socket=x11",
+      "--share=network"
+    ]
+  },
+  "modules": [
+    {
+      "name": "gstreamer",
+      "buildsystem": "meson",
+      "builddir": true,
+      "config-opts": [
+        "-Ddoc=disabled"
+      ],
+      "sources": [
+        {
+          "type": "git",
+          "tag": "1.22",
+          "url": "https://gitlab.freedesktop.org/gstreamer/gstreamer.git",
+          "disable-submodules": true
+        }
+      ]
+    },
+    {
+      "name": "gst-pipeline-studio",
+      "buildsystem": "meson",
+      "run-tests": true,
+      "config-opts": [
+        "-Dprofile=development"
+      ],
+      "sources": [
+        {
+          "type": "dir",
+          "path": "../"
+        }
+      ]
+    }
+  ]
+}

ci/build_gps.ps1

@@ -0,0 +1,6 @@
+$env:MESON_ARGS = "--prefix=C:\gst-install\ -Dbuildtype=release"
+cmd.exe /C "C:\BuildTools\Common7\Tools\VsDevCmd.bat -host_arch=amd64 -arch=amd64 && meson _build $env:MESON_ARGS && meson compile -C _build && ninja -C _build install"
+if (!$?) {
+    Write-Host "Failed to build and install GstPipelineStudio"
+    Exit 1
+}

ci/env.sh

@@ -0,0 +1,3 @@
+export RUSTUP_HOME='/usr/local/rustup'
+export PATH=$PATH:/usr/local/cargo/bin
+export CARGO_HOME='/usr/local/cargo'

ci/images_template.yml

@@ -0,0 +1,4 @@
+variables:
+  GST_RS_WIN_IMG_TAG: "2023-12-22.0"
+  GST_RS_FDO_IMG_TAG: "2024-01-05.0"
+  GST_RS_STABLE: "1.70.0"

ci/install-rust.sh

@@ -0,0 +1,25 @@
+source ./ci/env.sh
+
+RUSTUP_VERSION=1.26.0
+RUST_VERSION=$1
+RUST_ARCH="x86_64-unknown-linux-gnu"
+
+RUSTUP_URL=https://static.rust-lang.org/rustup/archive/$RUSTUP_VERSION/$RUST_ARCH/rustup-init
+wget $RUSTUP_URL
+
+chmod +x rustup-init;
+./rustup-init -y --no-modify-path --profile minimal --default-toolchain $RUST_VERSION;
+rm rustup-init;
+chmod -R a+w $RUSTUP_HOME $CARGO_HOME
+
+rustup --version
+cargo --version
+rustc --version
+
+rustup component add clippy-preview
+rustup component add rustfmt
+cargo install --force cargo-audit
+cargo install --force cargo-outdated
+
+# fetch project deps
+cargo fetch

ci/windows-docker/Dockerfile

@@ -0,0 +1,27 @@
+# escape=`
+
+FROM "registry.freedesktop.org/gstreamer/gstreamer/amd64/windows:2023-08-24.0-main"
+
+# Make sure any failure in PowerShell is fatal
+ENV ErrorActionPreference='Stop'
+SHELL ["powershell","-NoLogo", "-NonInteractive", "-Command"]
+
+ARG DEFAULT_GST_BRANCH="1.22"
+ARG DEFAULT_GTK_BRANCH="4.8.2"
+ARG RUST_VERSION="invalid"
+
+RUN choco install -y pkgconfiglite nasm llvm
+
+# https://stackoverflow.com/a/50716450
+RUN setx PATH '%PATH%;C:\Program Files\NASM;C:\gst-install\bin;c:\Program Files\gettext-iconv\bin'
+ENV PKG_CONFIG_PATH="C:\gst-install\lib\pkgconfig"
+
+COPY install_gst.ps1 install_gtk.ps1 C:\
+RUN C:\install_gst.ps1
+RUN C:\install_gtk.ps1
+
+RUN Invoke-WebRequest -Uri https://win.rustup.rs/x86_64 -OutFile C:\rustup-init.exe
+RUN C:\rustup-init.exe -y --profile minimal --default-toolchain $env:RUST_VERSION
+
+RUN Invoke-WebRequest -Uri https://github.com/mlocati/gettext-iconv-windows/releases/download/v0.21-v1.16/gettext0.21-iconv1.16-shared-64.exe -OutFile C:\gettext0.21.exe
+RUN C:\gettext0.21.exe /SILENT

ci/windows-docker/container.ps1

@@ -0,0 +1,60 @@
+# Copied from mesa, big kudos
+#
+# https://gitlab.freedesktop.org/mesa/mesa/-/blob/master/.gitlab-ci/windows/mesa_container.ps1
+# https://gitlab.freedesktop.org/mesa/mesa/-/blob/34e3e164936d1d3cef267da7780e87f062fedf39/.gitlab-ci/windows/mesa_container.ps1
+
+# Implements the equivalent of ci-templates container-ifnot-exists, using
+# Docker directly as we don't have buildah/podman/skopeo available under
+# Windows, nor can we execute Docker-in-Docker
+$registry_uri = $args[0]
+$registry_username = $args[1]
+$registry_password = $args[2]
+$registry_user_image = $args[3]
+$registry_central_image = $args[4]
+$dockerfile = $args[5]
+
+docker --config "windows-docker.conf" login -u "$registry_username" -p "$registry_password" "$registry_uri"
+if (!$?) {
+  Write-Host "docker login failed to $registry_uri"
+  Exit 1
+}
+
+# if the image already exists, don't rebuild it
+docker --config "windows-docker.conf" pull "$registry_user_image"
+if ($?) {
+  Write-Host "User image $registry_user_image already exists; not rebuilding"
+  docker --config "windows-docker.conf" logout "$registry_uri"
+  Exit 0
+}
+
+# if the image already exists upstream, copy it
+docker --config "windows-docker.conf" pull "$registry_central_image"
+if ($?) {
+  Write-Host "Copying central image $registry_central_image to user image $registry_user_image"
+  docker --config "windows-docker.conf" tag "$registry_central_image" "$registry_user_image"
+  docker --config "windows-docker.conf" push "$registry_user_image"
+  $pushstatus = $?
+  docker --config "windows-docker.conf" logout "$registry_uri"
+  if (!$pushstatus) {
+    Write-Host "Pushing image to $registry_user_image failed"
+    Exit 1
+  }
+  Exit 0
+}
+
+Write-Host "No image found at $registry_user_image or $registry_central_image; rebuilding"
+docker --config "windows-docker.conf" build $DOCKER_BUILD_ARGS --no-cache -t "$registry_user_image" -f "$dockerfile" "./ci/windows-docker"
+if (!$?) {
+  Write-Host "Container build failed"
+  docker --config "windows-docker.conf" logout "$registry_uri"
+  Exit 1
+}
+Get-Date
+
+docker --config "windows-docker.conf" push "$registry_user_image"
+$pushstatus = $?
+docker --config "windows-docker.conf" logout "$registry_uri"
+if (!$pushstatus) {
+  Write-Host "Pushing image to $registry_user_image failed"
+  Exit 1
+}

ci/windows-docker/install_gst.ps1

@@ -0,0 +1,62 @@
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12;
+
+# Download gstreamer and all its subprojects
+git clone -b $env:DEFAULT_GST_BRANCH --depth 1 https://gitlab.freedesktop.org/gstreamer/gstreamer.git C:\gstreamer
+if (!$?) {
+  Write-Host "Failed to clone gstreamer"
+  Exit 1
+}
+
+Set-Location C:\gstreamer
+
+# Copy the cache we already have in the image to avoid massive redownloads
+Move-Item C:/subprojects/*  C:\gstreamer\subprojects
+
+if (!$?) {
+  Write-Host "Failed to copy subprojects cache"
+  Exit 1
+}
+
+# Update the subprojects cache
+Write-Output "Running meson subproject reset"
+meson subprojects update --reset
+
+if (!$?) {
+  Write-Host "Failed to reset subprojects state"
+  Exit 1
+}
+
+$env:MESON_ARGS = "--prefix=C:\gst-install\ -Dbuildtype=release " +
+    "-Dglib:installed_tests=false " +
+    "-Dlibnice:tests=disabled " +
+    "-Dlibnice:examples=disabled " +
+    "-Dffmpeg:tests=disabled " +
+    "-Dopenh264:tests=disabled " +
+    "-Dpygobject:tests=false " +
+    "-Dugly=enabled " +
+    "-Dbad=enabled " +
+    "-Dges=enabled " +
+    "-Drtsp_server=enabled " +
+    "-Ddevtools=enabled " +
+    "-Dsharp=disabled " +
+    "-Dpython=disabled " +
+    "-Dlibav=disabled " +
+    "-Dvaapi=disabled " +
+    "-Dgst-plugins-base:pango=enabled " +
+    "-Dgst-plugins-good:cairo=enabled " +
+    "-Dgpl=enabled "
+
+Write-Output "Building gst"
+cmd.exe /C "C:\BuildTools\Common7\Tools\VsDevCmd.bat -host_arch=amd64 -arch=amd64 && meson _build $env:MESON_ARGS && meson compile -C _build && ninja -C _build install"
+
+if (!$?) {
+  Write-Host "Failed to build and install gst"
+  Exit 1
+}
+
+cd C:\
+cmd /c rmdir /s /q  C:\gstreamer
+if (!$?) {
+  Write-Host "Failed to remove gst checkout"
+  Exit 1
+}

ci/windows-docker/install_gtk.ps1

@@ -0,0 +1,27 @@
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12;
+
+$env:MESON_ARGS = "--prefix=C:\gst-install\ -Dbuildtype=release"
+
+# Download gtk and all its subprojects
+git clone -b $env:DEFAULT_GTK_BRANCH --depth 1 https://gitlab.gnome.org/gnome/gtk.git C:\gtk
+if (!$?) {
+  Write-Host "Failed to clone gtk"
+  Exit 1
+}
+
+Set-Location C:\gtk
+
+Write-Output "Building gtk"
+cmd.exe /C "C:\BuildTools\Common7\Tools\VsDevCmd.bat -host_arch=amd64 -arch=amd64 && meson _build $env:MESON_ARGS && meson compile -C _build && ninja -C _build install"
+
+if (!$?) {
+  Write-Host "Failed to build and install gtk"
+  Exit 1
+}
+
+cd C:\
+cmd /c rmdir /s /q  C:\gtk
+if (!$?) {
+  Write-Host "Failed to remove gtk checkout"
+  Exit 1
+}

ci/windows-docker/install_pango.ps1

@@ -0,0 +1,27 @@
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12;
+
+$env:MESON_ARGS = "--prefix=C:\gst-install\ --wrap-mode=forcefallback"
+
+# Download pango all its subprojects
+git clone -b $env:DEFAULT_PANGO_BRANCH --depth 1 https://gitlab.gnome.org/gnome/pango.git C:\pango
+if (!$?) {
+  Write-Host "Failed to clone pango"
+  Exit 1
+}
+
+Set-Location C:\pango
+
+Write-Output "Building pango"
+cmd.exe /C "C:\BuildTools\Common7\Tools\VsDevCmd.bat -host_arch=amd64 -arch=amd64 && meson _build $env:MESON_ARGS && meson compile -C _build && ninja -C _build install"
+
+if (!$?) {
+  Write-Host "Failed to build and install pango"
+  Exit 1
+}
+
+cd C:\
+cmd /c rmdir /s /q  C:\pango
+if (!$?) {
+  Write-Host "Failed to remove gtk checkout"
+  Exit 1
+}

data/css/style.css

@@ -0,0 +1,573 @@
+/*
+
+    GstPipelineStudio Website
+    ====================
+
+    shamelessly stolen CSS from Pipewire
+
+*/
+
+/* GNOME Color Palette */
+:root {
+  --rounded-corner: 12px;
+  --blue1: rgb(153, 193, 241);
+  --blue2: rgb(98, 160, 234);
+  --blue3: rgb(53, 132, 228);
+  --blue4: rgb(28, 113, 216);
+  --blue5: rgb(26, 95, 180);
+  --green1: rgb(143, 240, 164);
+  --green2: rgb(87, 227, 137);
+  --green3: rgb(51, 209, 122);
+  --green4: rgb(46, 194, 126);
+  --green5: rgb(38, 162, 105);
+  --yellow1: rgb(249, 240, 107);
+  --yellow2: rgb(248, 228, 92);
+  --yellow3: rgb(246, 211, 45);
+  --yellow4: rgb(245, 194, 17);
+  --yellow5: rgb(229, 165, 10);
+  --orange1: rgb(255, 190, 111);
+  --orange2: rgb(255, 163, 72);
+  --orange3: rgb(255, 120, 0);
+  --orange4: rgb(230, 97, 0);
+  --orange5: rgb(198, 70, 0);
+  --red1: rgb(246, 97, 81);
+  --red2: rgb(237, 51, 59);
+  --red3: rgb(224, 27, 36);
+  --red4: rgb(192, 28, 40);
+  --red5: rgb(165, 29, 45);
+  --purple1: rgb(220, 138, 221);
+  --purple2: rgb(192, 97, 203);
+  --purple3: rgb(145, 65, 172);
+  --purple4: rgb(129, 61, 156);
+  --purple5: rgb(97, 53, 131);
+  --brown1: rgb(205, 171, 143);
+  --brown2: rgb(181, 131, 90);
+  --brown3: rgb(152, 106, 68);
+  --brown4: rgb(134, 94, 60);
+  --brown5: rgb(99, 69, 44);
+  --light1: rgb(255, 255, 255);
+  --light2: rgb(246, 245, 244);
+  --light3: rgb(222, 221, 218);
+  --light4: rgb(192, 191, 188);
+  --light5: rgb(154, 153, 150);
+  --dark1: rgb(119, 118, 123);
+  --dark2: rgb(94, 92, 100);
+  --dark3: rgb(61, 56, 70);
+  --dark4: rgb(36, 31, 49);
+  --dark5: rgb(0, 0, 0);
+  --primary-color: var(--blue5);
+  /* Set your project color */
+  --borders: var(--light3);
+}
+
+/* Typography */
+
+@font-face {
+  font-family: 'Inter Var';
+  font-weight: 100 900;
+  font-display: swap;
+  font-style: oblique 0deg 10deg;
+  src: url("fonts/Inter.var.woff2?v=3.19") format("woff2");
+}
+
+* {
+  -moz-box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  box-sizing: border-box;
+}
+
+html,
+body {
+  margin: 0;
+  padding: 0;
+  font-size: 16px;
+  font-family: "Inter Var", sans-serif;
+  font-weight: 400;
+  line-height: 1.6;
+}
+
+body {
+  color: #241f31;
+  background-color: #f6f5f4;
+  min-height: 100vh;
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  margin: 2rem 0 -6px;
+  font-weight: 600;
+  line-height: 1.25;
+  font-variation-settings: "wght" 600;
+  /* needed for webkit */
+}
+
+h1 {
+  font-size: 30px;
+  font-weight: 100;
+  font-style: normal;
+  margin: 3rem 0 2rem;
+}
+
+@media screen and (min-width: 650px) {
+  h1 {
+    font-size: 38px;
+  }
+}
+
+h2 {
+  font-size: 1.2rem;
+}
+
+@media (prefers-color-scheme: dark) {
+  body {
+    filter: invert(100%) hue-rotate(180deg);
+  }
+
+  html {
+    background-color: var(--dark5);
+  }
+
+  img,
+  video,
+  iframe {
+    filter: invert(100%) hue-rotate(180deg);
+  }
+}
+
+a {
+  font-weight: 600;
+  text-decoration: none;
+  color: var(--primary-color);
+  cursor: pointer;
+  font-variation-settings: "wght" 600;
+  /* needed for webkit */
+}
+
+a:hover {
+  text-decoration: underline;
+}
+
+b {
+  font-weight: 600;
+}
+
+small {
+  color: #777;
+}
+
+hr {
+  margin: 3rem auto 4rem;
+  width: 40%;
+  opacity: 40%;
+}
+
+img {
+  display: block;
+  margin: 2rem auto;
+  max-width: 100%;
+}
+
+img.full {
+  width: 100%;
+}
+
+img.pixels {
+  image-rendering: crisp-edges;
+  /* older firefox browsers */
+  image-rendering: pixelated;
+}
+
+
+/* Layout */
+.container {
+  width: 80%;
+  margin-left: auto;
+  margin-right: auto;
+  max-width: 720px;
+}
+
+/* Singletons */
+#logo {
+  display: block;
+  width: 35%;
+  height: 35%;
+  color: rgba(0, 0, 0, 0);
+  /* make text transparent */
+  background: url('../icons/org.freedesktop.dabrain34.GstPipelineStudio.ico') no-repeat center;
+  padding: 5rem 0 3rem;
+  margin: 0 auto;
+}
+
+.page-logo>img {
+  margin: 0 auto;
+}
+
+@media (prefers-color-scheme: dark) {
+  a.page-logo {
+    filter: invert(100%) hue-rotate(180deg);
+    /* uninvert */
+    background-image: url('assets/page-logo-i.svg');
+  }
+}
+
+.brand-white {
+  background-color: #fff;
+}
+
+.brand-green {
+  background-color: #30D475;
+}
+
+.brand-black {
+  background-color: #201A26;
+  color: white;
+}
+
+.page-link::after {
+  content: " ➜";
+}
+
+
+/* Footer */
+footer {
+  text-align: center;
+  padding: 3em 0 3em;
+  font-size: 1em;
+  margin-top: 4rem;
+}
+
+/* Make tables vertically aligned to the top */
+tbody td {
+  vertical-align: top;
+}
+
+/* Github Code Highlighting */
+.highlight table td {
+  padding: 5px;
+}
+
+.highlight table pre {
+  margin: 0;
+}
+
+.highlight .cm {
+  color: #999988;
+  font-style: italic;
+}
+
+.highlight .cp {
+  color: #999999;
+  font-weight: bold;
+}
+
+.highlight .c1 {
+  color: #999988;
+  font-style: italic;
+}
+
+.highlight .cs {
+  color: #999999;
+  font-weight: bold;
+  font-style: italic;
+}
+
+.highlight .c,
+.highlight .ch,
+.highlight .cd,
+.highlight .cpf {
+  color: #999988;
+  font-style: italic;
+}
+
+.highlight .err {
+  color: #a61717;
+  background-color: #e3d2d2;
+}
+
+.highlight .gd {
+  color: #000000;
+  background-color: #ffdddd;
+}
+
+.highlight .ge {
+  color: #000000;
+  font-style: italic;
+}
+
+.highlight .gr {
+  color: #aa0000;
+}
+
+.highlight .gh {
+  color: #999999;
+}
+
+.highlight .gi {
+  color: #000000;
+  background-color: #ddffdd;
+}
+
+.highlight .go {
+  color: #888888;
+}
+
+.highlight .gp {
+  color: #555555;
+}
+
+.highlight .gs {
+  font-weight: bold;
+}
+
+.highlight .gu {
+  color: #aaaaaa;
+}
+
+.highlight .gt {
+  color: #aa0000;
+}
+
+.highlight .kc {
+  color: #000000;
+  font-weight: bold;
+}
+
+.highlight .kd {
+  color: #000000;
+  font-weight: bold;
+}
+
+.highlight .kn {
+  color: #000000;
+  font-weight: bold;
+}
+
+.highlight .kp {
+  color: #000000;
+  font-weight: bold;
+}
+
+.highlight .kr {
+  color: #000000;
+  font-weight: bold;
+}
+
+.highlight .kt {
+  color: #445588;
+  font-weight: bold;
+}
+
+.highlight .k,
+.highlight .kv {
+  color: #000000;
+  font-weight: bold;
+}
+
+.highlight .mf {
+  color: #009999;
+}
+
+.highlight .mh {
+  color: #009999;
+}
+
+.highlight .il {
+  color: #009999;
+}
+
+.highlight .mi {
+  color: #009999;
+}
+
+.highlight .mo {
+  color: #009999;
+}
+
+.highlight .m,
+.highlight .mb,
+.highlight .mx {
+  color: #009999;
+}
+
+.highlight .sb {
+  color: #d14;
+}
+
+.highlight .sc {
+  color: #d14;
+}
+
+.highlight .sd {
+  color: #d14;
+}
+
+.highlight .s2 {
+  color: #d14;
+}
+
+.highlight .se {
+  color: #d14;
+}
+
+.highlight .sh {
+  color: #d14;
+}
+
+.highlight .si {
+  color: #d14;
+}
+
+.highlight .sx {
+  color: #d14;
+}
+
+.highlight .sr {
+  color: #009926;
+}
+
+.highlight .s1 {
+  color: #d14;
+}
+
+.highlight .ss {
+  color: #990073;
+}
+
+.highlight .s,
+.highlight .sa,
+.highlight .dl {
+  color: #d14;
+}
+
+.highlight .na {
+  color: #008080;
+}
+
+.highlight .bp {
+  color: #999999;
+}
+
+.highlight .nb {
+  color: #0086B3;
+}
+
+.highlight .nc {
+  color: #445588;
+  font-weight: bold;
+}
+
+.highlight .no {
+  color: #008080;
+}
+
+.highlight .nd {
+  color: #3c5d5d;
+  font-weight: bold;
+}
+
+.highlight .ni {
+  color: #800080;
+}
+
+.highlight .ne {
+  color: #990000;
+  font-weight: bold;
+}
+
+.highlight .nf,
+.highlight .fm {
+  color: #990000;
+  font-weight: bold;
+}
+
+.highlight .nl {
+  color: #990000;
+  font-weight: bold;
+}
+
+.highlight .nn {
+  color: #555555;
+}
+
+.highlight .nt {
+  color: #000080;
+}
+
+.highlight .vc {
+  color: #008080;
+}
+
+.highlight .vg {
+  color: #008080;
+}
+
+.highlight .vi {
+  color: #008080;
+}
+
+.highlight .nv,
+.highlight .vm {
+  color: #008080;
+}
+
+.highlight .ow {
+  color: #000000;
+  font-weight: bold;
+}
+
+.highlight .o {
+  color: #000000;
+  font-weight: bold;
+}
+
+.highlight .w {
+  color: #bbbbbb;
+}
+
+.highlight {
+  background-color: #f8f8f8;
+}
+
+
+/* Code Blocks */
+.highlighter-rouge {
+  padding: 2px 1rem;
+  border-radius: 5px;
+  background-color: white;
+
+  overflow: auto;
+}
+
+.highlighter-rouge * {
+  background-color: white;
+}
+
+/* Inline Code */
+code.highlighter-rouge {
+  padding: 2px 6px;
+  background-color: rgba(0, 0, 0, 0.07);
+}
+
+/* Buttons */
+
+.dialog-buttons {
+  display: flex;
+  flex-direction: row;
+  align-items: baseline;
+  justify-content: space-between;
+  margin-top: 6rem;
+}
+
+.inline-button {
+  display: inline-block;
+  font-weight: 900;
+  font-size: 90%;
+  padding: .4rem 1rem;
+  border-radius: var(--rounded-corner);
+  background-color: rgba(0, 0, 0, 0.05);
+  color: var(--dark5);
+}

data/icons/AUTHORS

@@ -0,0 +1,3 @@
+Designed by Freepik from Flaticon.
+https://www.flaticon.com/premium-icon/pipeline_1191012
+https://www.flaticon.com/premium-icon/pipeline_1190961

data/icons/meson.build

@@ -0,0 +1,9 @@
+install_data(
+  '@0@.svg'.format(application_id),
+  install_dir: iconsdir / 'hicolor' / 'scalable' / 'apps'
+)
+
+install_data(
+  '@0@-symbolic.svg'.format(base_id),
+  install_dir: iconsdir / 'hicolor' / 'symbolic' / 'apps',
+)

data/icons/org.freedesktop.dabrain34.GstPipelineStudio-symbolic.svg

@@ -0,0 +1,826 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   version="1.1"
+   id="svg53"
+   width="682.66669"
+   height="682.66669"
+   viewBox="0 0 682.66669 682.66669"
+   sodipodi:docname="pipeline-symbolic.svg"
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs57" />
+  <sodipodi:namedview
+     id="namedview55"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     showgrid="false"
+     inkscape:zoom="1.133789"
+     inkscape:cx="341.77434"
+     inkscape:cy="341.33334"
+     inkscape:window-width="1920"
+     inkscape:window-height="983"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="g59" />
+  <g
+     inkscape:groupmode="layer"
+     inkscape:label="Image"
+     id="g59">
+    <image
+       width="682.66669"
+       height="682.66669"
+       preserveAspectRatio="none"
+       xlink:href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAYAAAD0eNT6AABBCXpUWHRSYXcgcHJvZmlsZSB0eXBl
+IGV4aWYAAHjarZ1rltw2l2X/cxQ1BBLEczgAAa7VM+jh996ITEm2ZfurqrZsSY6MIEHgPs65rzjW
+//0/7/Ff//VfV0opHDGVmlvOJ//EFlvo/KWen3/a/v064/79+5/w9eofXj9+/CDw0s2f9+cHpX/+
+vDqvp58f+L7HNf74+lG/fhLq14W+7/x1wds7e6v56yJ5PXxev+LXhdr6/CW3Wn5d6vis83y+3riX
+8vXfXT5P8X0R///49YVY2KWZeNcdwrqv+9y/188Kbv8Ld+fPi9+vOwb/5ivpDsd+qXythA35w+P9
+3OBfN+jPm399Nvv6/Q/+vPmhf71+/2kv8/ep5d//4Eq/3/y9xb/c+P6xovDHH9R+j788ztd/7zvr
++67P0/WY2dH8JVFbjq7vy/BGLhLv/bHMr8J/ib+X/avxq579fDiceT7n4NdztStwKu9xxWte/Xqv
+tf98roclxrBC4c8QnnDv1+pdQgvPPrHor+sN5W73vCvn9oR13Dcvhx9rufZ9277fc1XuPC/eGi4u
+du3j/5tfxz/98L/z63jfxy26zvpjr1hXUHJZhifn77yLA7ner3NLe4O/f/1Q2vOXg705wbS3ufKA
+/RyfS4x0/ZSte5/zzfsSf3604jrK/LoAW8S9E4u5bk7gzNedrnydJYRyXexj5YA6Kw/oxuAEMENh
+ssgQ7zuHo4QavDefKdd+b0ghB1/GNnEQ6c534Wza3TmsGBPyU2JFhnq6U8So5VRSPVJLPd855pRz
+Llkj18tdYkkll1JqaaXXu8aaaq6l1tpqb6Hd2MDUciutttZ6D0fnRp1rdd7feWWEcY840sijjDra
+6A/i88QnPfkpT33a02eY98RMzDzLrLPNvq5jYSlWXGnlVVZdbfUXWXvvN77pzW9569ve/uPUvk71
+L7/+G6d2fZ1a2Cfl+8qPU+PVo5TvS1yak+SZcWIhXpx48QQQ6OCZnfWKMXhyntnZAkqRAotMns0x
+L0+MI4zrCum9fpzdz5P7j87tSPU/Orfwbyd3eHT/P07u4Oj+em6/ObWpn3v2iX200D09b7SP9/RQ
+D/47T377/NnfXsv71Duv8S5W877hZjP7WNisN5xzcFHeuLA8T8XXlYdTefJ73LE2/lIfPsF5888d
+Um1Ly5r6TH6sxsSDlfflqGcqvrQiv3csWvNWddWDl9HMevvTmAMPPLGkiN7wlSeEtgI/5MFy5yXM
+buBx0+VPMfBs/b5uxR31vdh1Xk9715XeEtP/4FIHz/D3lypprTp6Xw3Jehq7mtNK3bPjovEVAQQN
+UbiPPguvrGfuO4QrKJPvRCzvt41ZsPIj7ns+Fe10a85Z496K3EYq+2/jPqKHFMcT97YiKOe78ut6
+outyaefv/szn6ve6MzuwGrc+wqy80t/cXsSvXGjDc4eHJ2w4pAtteQEL77q59pheACdZ5/uE0Vt8
+xjnbyy7FA0nOKBInnte8C/qYS03PijOzx/2p9doOqa2o2RUm3V2p62Kqn38ef37hD3/2mxO77jke
+fF3AcKTQY12zXSqbb3lrG0+51onxR9jO1nlcVKGGtzWeGlHMPvqJxqOAPN1dn67K4CJwFO81Sx06
+slL7SPzlKPld82xbXCtyMLAMYeIpnglCTRU7MW9U9O1XzHONa84InOs140faic252nPdz/FyxM+4
+vEUcE11lKzFDeSIylYW1hPZflafrI9eU7zSf1HD8mM/zecWeGKr3PdSk9T4ZMcL1rIHu1Ptq42uF
+k/cmTul+Ek5ncbyo4JhPqa0k3AfPku4BwDlQ1fCu7ZtuFhxwgNPfAY9pIelnRjMHUIW9XFebNU3F
+BWEsWDw24Xmunkc9BqobOVZM58kjnnEWwc1C084+WRGI/mIfry7q4RALO/20C+mOCMdzKhbAoEPp
+aA/SkVcqj0CJU+SuIc17rJCRUmxvWiHM5IWRiKSXPlkvRhdLwvGAn478nFizsca60enno3EpYR4/
+Boyn888ws7vap9rEKS4cVI8FfR5XrwnJLjz3UweWPryhsg9dUMapvzzTc6LhcfXmHoX1sr/Y6RsL
+ikJgvS6WewH0setH4ITmfY9RrzQv9IxjQgJwBHistxaWi2KiihjOOVJ7EjK23pyuLbnnhTTUvsqB
+Erxp1ftvlHz/WR5M7pU4u4E883YU40asEHo+OsJ88CLYovhyjqrneWeO9+Jx0rhnipXlpPylUiXx
+e2mIBQ8ZJ//vScYHT431W8ecPcWFKeuRw3wHx8RFS8ozA11HbRGv2K8ye+HTcwT2s7FnmXfX586Y
++3aBblHaqMF/2cbec72wVgPlrm9K3PnhueP1VBz5iVieqPVT17nd0ERAl/4OcRn9SDduvteBco05
+FvIzngkIjKM+JeIewIxtlZBiw9VV7DLmqvCAb42FnXfvwlx42nu9PS52hT18Gg4dvUvvWtifJp7A
+P78RsXkW+nW/mL2XTelnnSED4+97tYRhPPDq+XlyBlw8L/pXFwtub0EmeLwXBb8yQjFeyBja/HBW
+bFd7R1jlxDZz/pjtEo+F670nQl3PoPAuNIHd2N4CV/NkzMx4Ah4pAy9QCI69IalvUKXUTnw0TvvA
+slRU8uYY78vz9v4F3cQ/uYkpLIAKBkZpGe0eHOIJupmDS25L/i4OLKu0LgTB+hu7/ec/scMKCx5o
+gYVEBHiwOo7t84Oa4BMl8cuNooM28B9YKeT7fXpjv+OD4r8tgp4GFutaC7aFx5zo7gSMFsQP6+8F
+Gw/bi3427/9/I5a1dLS38bTPix8aCZd2N0xxgo/d3GmGiMeNB0YKp9ffhhi0jOuYcDvE8/MU/2Za
+BkYJXJbfelSsaexYPWEFvnwgXgjcc23Ti4UEPOhv09OxOykj5hy/J3pjSc/V8KWI7Hu8mO9HIRsI
+8brQSMg/B3LOzC7guyeIWZRbcwg9yWLXiQW5noJbHxtCQA7ngf64G1jz7UE4eJ5kccqPWB16icC/
+MFico++rJ9Dwxb3cyEzrAQC5ai6j7FPDEO4r43LQxi8IxV3+7iYimDuCnO8PWrtGX0C/yUF7lzWx
+tn7wBCyVoZ/D638gWNgXX/ir7e/QqDH3huNX5j4CIxH7L1cCt8zf3evXW3m9r6V6ma+l8hjr+LrX
+16bweF/bYpxnb4wr2BuzPe+ft0ZK7L48x89t+f2dftzo18X+aancAlPrxri5Xxsj+99b89mYz7Z8
+b8rXlriP1+cgfuzI8U93mf96fj+F5Pi9lKDc2K6bW7QLo5TqGjeqPnnGhf5m6MLANKJNAJONLw+h
+RUG2ZXATJBzq2xt2sASs9jXyynNiQ7Fa3BgfF8sEcr6l84wAKgCw4O68D01u519cdESHwGkTUAtZ
+FL9vWCLXwLWkF33BnqBkeCvemu5TGJb72WM7j4hfe8L74DTyXXFfOLl71kttDAMWCJDN47mhB0C/
+gEnRV/QLEPdewJRSsQvAXYMsvMrqyxrC9FJYvYjoTHPC/uB19/kUnGXoxjshtfEWYy8gGaeHqY0Y
+oX68z96aa2muL/XkYU8LqGF2YBsnd8kQEAKepr9zzPMdjTdfbDF0A3Shgb8P7A6IHHjBXQApNytl
+VyrmreQBTeDjsWyz/oB5oEkPHHzkNHGk0O0bYg0ZTPO4jTjlezTM2vsIXyCOCxi20BQpDpLDjscX
+UgccuziI1cHBYN0E1MGss0NYqQMw+IJUTqwm1vANEY8AfGwazXti6vuCWe+rgQlO8FaEOSEHuIfC
+FkyQd+MTR+SIeH3pARAtQddTRr+8fbhXSg/iiAEeMeeH40D2G4J24fygs6vizm4E+D3AHU+4cH8+
+tEp6p4E/xi1inBcnB89rLXFm9X767R3Z7v0EgmcoFfiH7T7mmfH5IPIepxz+FhOiCYWrrw4H+yDg
+t8gp++aWyejun/88vv4CqB8qCIoeIm4EncDXL3z2uNkn0NtcGT+yOBpULL4RrAmrWM8JxQMqa4/S
+UtRRuowBaXCNOHi+iOWCFdzAXj6B89gQsPFIyAN46gbdwC0u3jh6SUccLAAfeQHPwCicJnd8gFZ4
+rRHeyU4X38AZYmsR31IwKuVFDqTKM3hTpOJAcsoFFarj1qWWWuBmsCVYFGI9jRIswEDLwNI7jw5B
+a8HDQmHyhS6EBZO5x5FxlIYk8o0ZQ3FjextGaKKySDO48j9EKQcOHsQADWSxaAFGEGXryALML8Co
+YA1dioJ5A+KCdMOFFvcb5QSJJAR4yRLGsXl3WugjmjKAwSG9WR4l/kulBGk3ZOrsz4N1qUJhLCkS
+pzxgabF+3P/jadmIzEn094lXiRl0UZcQuzXMVm/5uoAW8Bc/CmYr7AHvGVv/oSHL4zsEmKBGIxyx
+x4F2YM2uq3M8oXJF7sAPWTAAGxYNnMUIn9I6uHXAQN9gwYGDBHDCYjBhoN32Zo4MPo512LyyxnCi
+GpgD3g0xrIGrajBfeMmLroFnVDA80TFzSWqXeglKiSHDUJD0kGAICA3HnUCDN+f5alJvn6+i3sZt
+LuA9qojVqwcKEId2Yaw2RJFP6a1ORfKdU9KFZUNEtoU5Be0v6A8YrRFO7O1jKAQGiYY/YrbxYuqT
+Co6nwOKsJ+J2QtDjpCrlwDBNrMN539oVXAaEIpzPgwMt+rWyYDs8XcO3YX+uKYTk6UHkHMarbekf
+1nGKyQebcoeI82mNs0PNn46kn4cG4mG/pZds/Kp4Qsw9HoE9eJ/S8Hj4w4hgQO+hzwNoC2eAx7GZ
+bOBGTHc67geRYbONryKsQ68uF0WhWQNmpWPdEwAW9pKfGJ/N3g3/rRxyzNir5fWPUjX2J4z2NSyK
+RiSDGsglkDqVuMDU/HW0OPkM0og4qLOIArrtES5IwPUesjf9zUZtbXGUEUcEXkCi2C/3qj+DQ1wl
+93bibs7NFZGgE+Up/UNd8Gv9UueGIZZ9zD0CbnA3FRKW4Hx4L04TlVpuxasdhG0a4Nx2cM4IqZjj
+gI+NmCRtOKm2qQ+fwtamS9x/IsXqEn70lVDjSRF8uCv7xI/xKwAcLNMDzuasxB2a1Mjy0WE3omPE
+ffra54BTAlzA8LCfcsLfcEEZlMBdY2vXjfwWHKSuFnONzMEy8q+R29//CcndV36xV1geTHLrOR+9
+wKDBTVcDCT6GQ3NmS56nQL0aL/FTEN0OLrJHUMbx1BMD2nCcVaZ4JmwWsOZG95AjODVSwH5EYNF6
+wEnZ0BNHdt5AGUNKnLgLWrfMpRjXQqlr7DDyPI57xjMho2ZKg3oVHzZo5/06TlISU8wQYDbBdFW8
+U9tMt04Fo1/8BHraD+QE48ObLhgyFhcEVnAyj87qhtHdYLMX2Ppmk1Fw9rWgdwXAaJRpx2Yzlvs5
+zol24VNZOsgTy8z5Yk5AM6U9NRtWwxa8nkIYG7NzwxmhAG9Lm7tAxL5w9o+fQEb92ecngFjzdyAC
+PhLn5yPjxw+A3/tHfMYfgvyBKuc/3Ok/vdHxb3f6T290/G8f6ftGx//2kb5vdPyPHindqfMWIO3z
+FkNT+DWAckZeVyl4fvAVEAOtqElk8N4Vot2vL/q51aSLPI0DGIWdeGJg9TtbOxYYWH0YAGDsqLH1
+iAdpmNUnd3DpGYD0FXP0GtGDWjTegacuGzwXPgaR6dCsMft80UNAG3A0vsbuwZAoII9SwGeGJYHO
+LFRnbTD3DltjjIkj3fAOWOCBf4d9zAwAA1sF43599ZChLGjW1dBZkfgl1BBnJFaDoQQZwLMSVhC+
+s6Bkh1j+DngVbBH4BqcOKDlTbRIRFBbMIXrImOGsVX/119iivhqE4zYc/dwpvweQfOC9ygAx4tEC
+mnk/T613e8JOKHVUFYh8JWDdE4wG8cQ1sAtG+HjcYTb9PVqFVZ2m4GZtTwOwYKXjU+INzJ3FkM3A
+ObH7N9Y6YqNYWUpadwPPXa+ucT+qcE2iyKKbUXgWCFfAPz4c/3qeFuJiM0W7y9gn971Z+r3DyaPq
+1TmQerwRbo6ZSBje6Gqx/FAIEaVRQbYKP3FPaOeEsQXwDQB33DBnPmb6b5hyO9sB9cXQwsFB5rlw
+B7zlvQquFPJj+Qaf2eHrmRDzV7zIscMv+3tHLpbxKgCfDNAKMKeqj3ogmbg4QFkTlyzQetw8kx3D
+u/LJfdQGhKEgfAi4EqGTSVd/VL0b3JGTkpcXpPCez6YLIFBY8Y3JBFlBivoNbr45rsEKBvwOLjTY
+utMk4YEAR7azYO855XK/xgbHBBk2EL7pCPCLcWa4D9TRMK5xMgBkBGGNF0U5zZAdIPIsZ8OPANJd
+JJ5hsj52DfPfLjBzFxYgC3ud+O/ZHl6Fvd+sDvqOyIRDrwBl5lMhQWgv0T0Agd0poceGmiFluOu1
+Iw1sNGuYqzeQ8wvJRo+HIXULmWBFl7Fmti2g59M8iZHUWeCr/xTB5wnxqgP+CG4/sszJpNUwtBxA
+QWvB1+qGli9Q4pRP3KjbUPN4Pv7VTwJQwdLZpNY9eoQcZ2h/AfMs0KbyV/DfA6wPDtvwyxIXzqWH
+ltHiCrjDal7ibsDic+bCtrAiqLoihiNE6JMAjxvu0Bh44rnBLQvkClmAcplBBBqDQAoHKMvhQx3Y
+tRJ0HR7kNgbcbcpCPIMQCN/8RLfLUAlBr+sxZD7XQpBahyUaGYU7hGmc53FFZ4KeY8zbDnrDCSZs
+4slm53c4CKhufmckcCkU2BuB8C0cAKMgFtp6OG3bDDXvrOX9YL/nJ94NN4cTb8P/FChxlaYlQz6p
+Y8/YP0y06cC1sInlyELQgoEUXVoRgNe5gO/nI0NVjmGpGn047N9xfv88fr4Ae+AjuA0cWQRhykRv
+0S6iMmpE9NFKUBDbrqmuqC6WfPJYnMF5IPKwnWqa4IYvwJWqqZwstHrBauEccIFmZmOZ6rjNyX+i
+T1iu75h8SkcCbZvgN0Jt9gcrf5YkXdjAE3O2cEQVw4pbwc4DQfkYthTFRhThVlhRPnvMEC6s/CO1
+Caa4Ky7LxCHGY17gLdkQcjPOxv+0jq/BT5SMMsMB9REvbgcuAjy/2H/8PXrxvk+7nxlvIF0YwYAs
+gHIUAWgHoD/GTWAFGWi/oPzIY8TuwYvxIqDKZry2JQGhQUjYBvTFk1UxLvMfmFX8Y0D+4Xgoc4+o
+Gn++lxgY3oDNBkUUHx/fmOt1cjRASTyCBOjEH6SGZnTB8zQyf16WdfBkFR4vZZCrL+AxJ3XDUYyt
+wVCfYLQIZACp5Cpqf29gBrkfYOHxlvjYNacpek1hmDqIBYXAzT/WC2asF6xk4Y+thcTuwUUy3GR0
+OflW4xf6ZgAuG4IEFjyQvyBJMsiC9wI+APLZeuBDSjwQDsBCK1hOKtBt+C+k8K3RvRE88erDTSEd
+7THo1qCiCzdiHQX3njIbVBVRzVhUPApCkEZFKIHsmefBaZgBBbcjl0gkHq8nTclzHyL7OwR8SMHV
+wjoltVf3IIyWXUB4iDFmMUke0WIpbDP4ZrgOYwikKne5j4UX9yBQzftKSGuWRk0EJWhMYN5Yt4KG
+WIxg2iv/EjgaV9nxUvTSWC1OBDZkKg+RKqfmo2KJxyM4BHFYcIKJaJ7JRLkx1oP1gWZwtG2b4xQO
+yCubMy2lG88MQB5xB0JQJpKJtKE12HTgAlsLnC3mu6pIAG+Nc+z6mrrCAWzD1owdBkhlcjec6A7w
+sOxShIfw9+sVvgL5wEXi1WCWLFt2NThgzPFzvBNFL1hbhOC8ewL9vHpDw9lArOZd2JzLeB2CONK6
+Rkrh1GUBWg301B7L5YVu86cWzL4wfZgmx7mRNfp2twBY2SqfUDqcubEYWL2YBTc6yslqrpXqUaG2
+bx7yVk4Td9iNv4UyNTpvOBvQ6wJZG9cKC9xadmABDQNIWACCIY1t3iC2hGPmCKyDOa3MiivBBdIZ
+EL3R1g4D9aHYPtC/IYrARC2k7bos68CEppahomPc1ns0UC2uZb06t1eIZsYPmcEDmY95PhWuV8R2
+my25EK5prVvKGYJ9BKADB4tQGQg04PoahcvjLNeo6Gq/7zaqUdsbKwtRLwODzbPhofCjwAALxM6D
+M7fmLTdk5924rhk4h/5oPNLaFGEnprDT0ucQRTablQBHCoBrY++jZ4ulIh4DERxCo/vkpPLknQAz
+M1rV8rK1rG1IzasCZGEWO2F1iZBNjR3ttpTouUDdcg1g4g4LzF1ig0iroDEpKRin+vQL6yWtQLHU
+uGnlS66AiGvLzANoCJuHndccvyTl+mVe/H2Vtc87z5K/0ojDsKHZcw3fgdiyZjhZN1QLLAQToCYB
+NakNnUUMxmVluHFFTNSbOlhxmejaIVb2+M2WVuULs2SUSm7Jo2TsHThUkWBpRTUru4LO0Doni3QG
+1JhtACjn1AHzPWEsjsqnMY3NMNGwwDBgyGpcRn2NwlUNMgZeujsx4/cmpEbgk2d4j/JJhR7JkB+o
+CuwDMlpCtzDvDGqSWiJhIMPY+66lwlLhqSyGtCogc94sE7iCyapHNJuBrmKSsBBywTfWqw6I7Tr5
+/DJCCIhaHygAn4bdIjvTSB3woVhZNOt9wCYRLuOT7DBiqvIDsrPhOSNcA8gP+cSeYvY4dYzFOYZG
+roMdLxxikKSlI8cKkG/lFv2oTGjxnZZw5beCt+XOtYWghnzSnijAsTXgT/Kf4KjvDjRrjeDgwI8W
+QB05BjhlkG3igFlJtJgGszLGsfffRoNqOi/CzR+tpzWm4XnwNYjQ6nqpXZqzfBAY0yVO6wgeNhfo
+XcFHeNQdWQDQiIt5lF0dYg5TN562HD9G9yGoD78jjNNM4CkMjmhmN8F57MgVRGCi5zA8wBWAq+jE
+VOdoyC8vi606xyDPQC5igfXgMMA56PYF6+jlMKmDACRZPgoFKb6x3mAJxQPzh/7gViANN2Z3YRTx
+RA/yM1o99Zrc08rA8+BjbbDhCOrOZ2FI1sjgsXPwBM3EHuK5sKuRXYWsGG0bQDBun9l0hXy9BRUx
+nv5Veyz/BsWbcYKb5lM/xLbKN/pT9aszmE2usBUzI0U1nDsAuQ7ki13fOdoujmyzwlVQVo9b/gcG
+xeM9ppwXYLCbKofpGZXHDtxrI4ZSDihL1oPucDkuCEMuXz6fuwS0t8qvryS3fXaMZYnJOzbFhHvN
+pe/EE74fOovCRNQhWnvURuE6Wuo3PuhAzHc3GjlkLq/PUIz2aP3PDhxVT0rcmx0+paW1aV1kVoYp
+UPpQ4kf8cdK8wB6ZFMUwRB8LOCkDZk1rF5DMo+NSdY7Q2TDg07fVj+oAynHGavzVkkUMCXqKE+Y5
+TW6U3rFkt2Ae2WJX2Oy8NZgHZU07Dntay6BSuT5AFEQcNZdTQ5EKhPRJQNSKKGVkEAz2cP8Dx4e7
+wQUM4B5Xrf3BegKDasEuAE2RYmES9hWcacHl5seRx6gRpBOAAKCxdgAhYWV65LErm6YZLxzAT15+
+WSo5jWZwgjc8HFyCYMKquazOmcfh0UruZvHE6VA8w+4mP1mAfhEvpFcwEIZEBfA8Dj3sJAQYmnXA
+7NEmy7IAESZfxHd+SlWbqRXLbwHyki0k4sYRYVlrw0yzXS8wFhxyI9cQGuPo9V3HaXGXVlWMj0rM
+BJxEMkZsRrire9GW9VVApPsEq1tVUmv5pGksCdshSkgN/EW1DPm9bvi2RAvkaynW1S5jcXgkLCeu
+ImOGMaAYDXzkGDD7CJQyzwTLvs1W8XxglwSi7eUNRj5hyAAguRdU/lwLFNe26bMSwL6Wb4QMsQNH
+zohhE13CZFUEwQ3oam+6H8YEFzwBAsSaZ8eFlWfbGPhsmpgUYyQTZBFQ2hN50+nhwu5mNBjQjmsF
+iBvSDJcpT3ytNa7YdaseBJTTMkcuPKfCfe4CXbjL3kqDTSdcZYH5gfcAV478UpYATStYnCbwfM0y
+RbQW12jGxIN7z4qFhC3t/PeyEgPsiC0zbbtre3M3kBut/F8IycWGZUsasRf2SiE/HZPAgvNhzBVX
+CLJAo8GSmICCSr+RT7Crz3khINzzgn5irIXEJRk2HqaHxIDsB/DswAdyXme8RarPBCZozzFknBjQ
+/roeDBZSIRCzfLfqcOC44ONPgVjI9j1BRXlW62PbvCxMBHyAE9vuIEPBtDbpE6KrFlVOrPkDZY3V
+TE7Ehd7BOgU4bXjgb2YFOQKAaAo7CbA1/MUJ5/bpPbg2QMJRzqx34kgBZoBnNBpvjL4cmFVkCxyD
+4UcOHgOVGbZVLdRLaEjN17ggnZ0lbYgNxt2W9NPLoNl+DUNDKeIHhwaNV22fwjCMdN6gFIspCn34
+hBVbgID+Sdd9VbRZa+0bMf5o7DY1sbJx4CnDO/DRkcHZt4jfUx6XImDSA0ABcRYSjE9xmMGaN4r8
+NyzHyU4Dv33vhY0ivGIi0VwF25UtkRwfh4CVxOkXPBxvxo7fcUv2O05DDLvCEZe6LN785EBaQ4cR
+Vc4544J3NwOkcgdirDPDan2q3EBLx64ssn0EV2Z5+QNp5YQ7Kwj2DCzThRN3iRYr6ug2b6pWh7MA
+KOXXjh6/39L+oYEsPFmRw0OdKX7qMu8MIMIifR/c17F9yhi/D+78HJ3uEnErn3g8O8EzGE8EJbxa
+P8SaHQKNT7PRxueAx9NSYmS24+7iAG0vA0DY/NTNQKeKQ3yAvnoCTMsjkW9nHnrQPjHPxof5yzHF
+0lcNah/A0IL0xD1216M5EbsGLCAwRLlrQHbwEdWBwxjdXLHjj2M7+B0xsQodaM36zaa/2FprQiey
+kQrIv2X48Y0DhKM/sGr9mpyc/UEMWeFouGxAiCRqV4ax4byTC+F0TmtlcG8FeRrtfLultFyUFXhW
+ElOM44qmju55VMvPClbVElbwIhzwq1fhivHuGbYQYboo5kqIOogN546xNhqsWx2W/gHrD1NHPn3g
+BU0GSA6Vt5QWp9hAIpbGgLLYpQYDmxD4XgCanhgw8/qQE1g2cgjzh5Qjws3WD2+L3+GGrVhdZNwe
+O29yfOd/kEUuaR1LMvALiXEHzwOD3mzDMQ2Ggbow39wutIfXXt0v3HVai5Y0n5o44P+2RTwdopIB
+/2Dv58BBVInjqf8VYoN5eAqZq0VcBVN5Gzy00SOCX9AcuDxsdem9wr3e+5aTHMZ3oq1WlsXAIMxA
+waYsL7JDyU4drQxKCwrEYFgmA7CCeEX0xI0zwcCpKXdDIY/fJWhxZxkGdApIDfzCcI8lS7BRVUeG
+juFRAZD4fN8HBqvlGAj5zjDksCMgptPkqC82fFffo8ygPPFnNZ8VOMmnh6CCnDzGC5e06gAGmeow
+l3VqiEHNs22nZmFDmQHDugOYN9Y853wFn7VlcTzIeeyC+Bf/0Y70ppBwRjxIBsuj7ZrhFyoHOLhD
+ksxO7FprSQcQYJP2XfGmZLe3YpmMZR5G1m65EQ9xbr6MybgmXLFmuFac2APbi60pWRIjWxgutGo9
+p41B6YWxrxkOAQcI035BtizrqG1BHeimUDO1NkK3lwCr6ELx3GiH0OP6UsO13S++36iH8TbrvF4r
+E3Ed87GePKPXCIZ1HE3h2mFVW1vEV9KA7X+63RXpAORvqHM92bDKHTB62INgWgxNN/Y2m8mfzJN1
+82I5A/iy9XkJKxhgxwVmdYAeVpvQCxwpx4sttsO/W8LaAVnduiF0GeTgoYPtEmZYR35G8/WbYNgN
+DYa0Rs3iK55Zugj3wvrbsGL9r5lpzs6ieJ7uMhBqzAxs1ozyPMgc3Ku/kBozIheexqaLyl2UEcwQ
+Ogqtw/ac7wMwqO0EES3o9EQUgvG4Zdj2uq1aBVwfENWzCOkMj147pThHxYiCmQpWGRyPybBvaUd8
+eQVpw5dl71sswNsB6wAXQR5OO0DY8xfmgs/nU4Cu1oxGfJD1AIicdlY1y4LPWaehJbAatoJrAnSO
+EU5Ixm3DXtaNn0phMbfeS344OVhaga48KHG2CFxbhBsxTQHFKeC1mKDtB8TD2koMKm++dmjVjtr1
+YpGBzV9tk6zqUnktgx19gZmANmC0CwVwfxdytGMlCEP/hLA3wWCDcdC6QEzjWMbgqxDVouMRELTy
+sJHFtj9OIXYU7LhQw6cBE6yeYmcSrgvLZGzIbAo4JCCNoDnAHxQbh80ugmvheY8GGm7DKT7PMVQH
+eZdOhIPa6U6NPa6eH2As+sU/kSWz+O19+2M9NcTAIgbtKwp3H3YbzfFIkeyDn28wdXTGAMYdCIbU
+AnNjbea0nhSwoYmwImPYsRgH3qOHcYDCphWIC78W9jqj1eAjW0hnWA7VwD5i6j9ZdpPxa5w8e7d3
+mJthKdCgY9Pfio0rSB7SZjTUhFyzDTfvNlxr+r+7JYB76WVV4AK7f1P41N6M8zCFKMCeeJBdSgM6
+hZiCo9T1d30aQAyoPsWqZ7ABKGz//Uls/6OID8OHnGe8hxrHQwBJeC5Evn3yUFaRbSjWIKm3bcgj
+fnoQ7stI1PsD5G7EtnGuKHd+Nfz8sd1nNxHfqew2hl/A74a+viL4PX5Fv14yekmWPEUrah6WKKx5
+Oz5ilgC25Orjwjhl6JzWHm597oiW7bLc8W32kYJBP30jVpxhojc+ztvkiH7mblJKZrE7ZNiSiARK
+CPM5LK7vxkZxc33c1tBUg1NlB/YNx1pysOsRgVV1Nx5fCwsJfOstwAuGZYLhsMa+igKzVUZLux0s
+97FA5B9F4U9HfHx1QHvKa7OeubvOzrd+Iu14T9uo9v5xoRmsDZ1/vcnxT3f5y01sMbE/73X/5RlB
+Jn1b2HpYmmN5bHZzh9HHMV/s8ozmY4TsSaUGzmCOAkYR43RedeIZbq7E+d0PXqgcBUiFIWrdxtjX
+QOFr9vuSUuzOVJQHHIX9XSbvDX6GaoPLIzS2S2ObAdwR7BJ+brnPCiNYxrr6lCZBXSVUNk7EGHfy
+H1dQxq66KH3LPtJ3YQV5/eCg8aLTTlD2QBOILb/KwEPFChg3xMNK0HH21q4GAxDaZCwGRhHZOq2t
+yIeWNL9Wdg+D42+3vAizHzCFWLVk/s5siDVf2ea16u1eM5WWr3OIPWOTgcdtteeJ140Kh7N3swcN
+B2EMx+YYU88vNqwCd3GKtZl5YOcyH193ukqa4wZdHZwqB87WRSirXbVYQcCTsRoJ/4PvSB6l6Q4+
+bgMA9tSukgYAskYEvcN3HXhGUODr7qvlHbVDIivC1NzI/XlDmrAB+7bMwVZz6NjJ+MILxrAAdF7w
+NZyCEcliLQaE5jFrXe8LtQfR2qdqZKta5VF1u1wPMw2YZstP21W1MfM+7ExCOJp2Hbe+KaNWE8/E
+YVn1dqZsbyb7EG8U0cz/y5Kfy/ose4bgByFaDG/yI7TEJgXjJxPv/X4SlwkokwRANdnDulOHAKix
+HgeWAKl4UPN7iMsBEsnzqS18UsnNdlRHAj3dCHM3uGJDIyrX6o9RO0bpvvpMdk8qaOhAL9ikxWPV
+umud04lC9hNxYzuj3u+06NbRQtYh2FuVocUBRHPGFoYdksChA/6UntMS3YpTjMBrUNGIlR0CSYQX
+OQgNEHfaSDANn/XyaXNFIDeYUGXXdSBjBbMIkAwNHnfjDgPnjGGrkG5LHHQvnEtHlLAcO++CA6+X
+nbvPLtVEA8axHTxoRvoOqmAnAdUVQYNP7+b3/cgcCWZr5qdHFhYNCnckiKvX3aGJg3zKWJ8a523c
+MkD2EyXNGQVHyAsoYBm2uE+Lwsce1wAU9iT7bqxBhbJKa8Ui4OIxSgknRd+4RDCFNlODLyKDqLlT
+CLDs5lt4tMwjoxs2ne3sSzA2chkujLItc7fTnUD5geIYyGn3KOgPRGcp6MJyXp9RE6Db+5mcTIRp
+QOKOYdpjAfPNjzWwWLYz16RJtQx+LodPWEghnbX9R6MDl7Qmnl00VJ2kTsctLQ6GQ1A3NnpHEcKz
+aUfsqCPS/iCeBkGihBqLgq2qRqyRzRDq5rDrAOYFiSc++4LWcS/gDwQjJxuh5H+vMxiMoNymG1i2
+WB9quaPaolRUNC0QW3+M+gdrhIs5FagDYmSpxlkvQ5F2v8VPOBJXU9XoYqrslqrhunBuAHaOiLVl
+B+gADooFDTuOVO3/uG1AqXvogRYOhZ2yy6Ib7iCmq6dpVqzf5UC8gG4LbGyjChTN9jyYNK6sWuZQ
+Mj4n7UkeriRe9vy072qRYR4mWtdyoDnPWqXzloHRUJof47lw4BEFnqgQmg/BtIbCGSyOJ3DOAbSi
+7DW/0wqE+zNrDO7yIRq3RjYjbiafHP2RrPiH89dnr/y1BRJD4OCInn62qx6/61dFkT/Rz1XK33X0
+/mzoTTvLdizOjh21rfDqKoPZ8nVDRzJk6YL11XtBd/SL98ZFA8UwIfgVYlVXwfpHbcM6BvwBvgHX
+xFM3N5uP2gKKRnSb6Di0YhDm0ks69ORisdl6k2HFG2Zk8OF2Pa9tm1c7MTjL0R2IuQ0yt7zKcDMs
+FoOfjTuyOLgcnG5nJhB4Vs+KXhvc+7sjx98Dc87z58icr6E5RjKVYnfADtzzFtw/e0TIzm0fc6NZ
+drOkT4xo4SLsmt3DU1TV13ZOFCWm3YaK6J9zV8gtYzcbyyUzx/ab4Ows8X05exMIWHEzSsmGR6fa
+wMxsLz2tSFw2Hmdr4ELa3YRTOYhQ0Qyfi5epGevXEkq8aePXrJ3vQTvfY3Y+WViTySeM+lO19Lo5
+Jnyxb61fI2VrooFrmKYKOrNVlx0r35ig/2M3NOxISnA1XQtn5AQQEwQpB+cmJOOViQ17zNXgEyDY
+WJMngrjfjmzh5tbYzcuYgv9W1/yfmubBnzuFv0C19vWDLjDhPLujTV4bDYeqh296m+MAzidb626k
+ncXJnmEhaAB2+oogDVTknCfOC00HDuFdkzkijBlPUiymtv/q7UKXr/ENT7ujARynFmFmbgM41ZAG
+8BhbPgwogFg01xYrak7j+Sl+yjuICNAKvG3iWxxkFWePEBrMHNgfoxIP6zKe3jGYwFjbbg3k7xkj
+5x/AR9kTYqyC3MFhY9yd54uWlEws9bFLjUobwQDAXXGhqIEBT4z62sXGAnIrpy/rtTFPQCXsZVus
+336uF9tmQHM+dgLI+Z3HgdLvkg3PQvq6++nuGjFwQHmjB/r/l48Cv/Fnay6HyGEaDgM6hntxigbG
+HHbmhJ6NmCzkA3c7UAarm6yJXA47A3rhzsRfjpqzpOpNu+3MPE+2OxZwMRy5BMTFEXEaht6K6jRO
+++/U9WhyuRsUB0FM5M+Kq54PRDOi2QsnEO3ODa+VyzfQoxuJqfaCwjvBj6Ihw2/XJxKFgXIpcdww
+jhyOe0+rAHazLY9Vq3HPMQKhNGPpQxyJKNx/7J796yixw1li7/mpNUAdYlFspXtPYBfRiwfiNWC2
+u0T7GhWi1LJ101ZIyy+U+ku+ZnNWtc3v4f2AyzTmtLnG8UMW7DhvqUwneBZtj0kqkAT3bOf6NOqA
+ZnY2i+e6jGggdGClssB3Gl6WYH3xHQy6O+sv7bCrPQiWKNvEc++crE6rHiF9U+AYPhS4bgoM8N0/
+sUbtBah+BmNoRGxfOtsaOGFkfkI5ZILHbaI1ZQwyRGVTvYydR2NAunY8NukaPr3uhC52DfUO1x6P
+UsqJB9jjUdC1XVxQ08Qdaxg5pusNAsfXs36TLsz0WOwOGXpRxD0Kwp6kx8BBXuw8IPR4bKWwxyi2
+TXthfZhXOzbqtNcCKTOPACgAveh87eQEZr4Dj9T2WCYrQcKRrio4KXD25wFnw4VUkTQvuQUXAUr4
+D+Z6SBjBndlJCc/Y2YzKwVk+8Uhq9liCvbFALXyM2fnbEB4+B3Oh8jwjIKooccyAvr4sZcKMAtou
+2z7DLIfpWJkuzKTUqMQ4+aVYCNfwj86tQmgc28Ha1pgOmGT91UoTxw/aZKWHON5/bOT4HslUAfTZ
+1i4j5XuGEhK9HpNJnAz/kw4oHy6ah4V6nlaYhV1AuV420mVYhIf5dSDO5Vg9gE6sw8RDWZChK+Wd
+dRhH390au0bTOKXxdc4fxRU9JhN/XBTcXjE8RsqFlOfD9UHvwOYa7PoELxwWFS8Nb4aFZwdaQKGX
+CUWskqHKbE4aPtGQWsc97gle/L52xHVp1zAV55G9Kcp62oDU7eHg/HezWKra6IB+bAI5rCTIzmHA
+i1XzXuYpxh7uVCwcKLC9zlP2ktpt2TfuFBQGyOul1QQgX07nmLJo0wFgKVZx4U14foAQRzlSD8cV
+GvJhw7RDPsrO5ztB0Z4OBz6FaMgC5ADowOIOIM+cl85wtRfiak2abSrQrGEj0od021UD/8DfQfB4
+FhBXOJtBH2A2WGtNk7BgFvG0Qy5Y7rU7fZ4jhXQ5XQBxPblhRietZ2FDQFavjyGphZGC1pudfbls
+m217a+KRdJ3WEwD9MPcFVoqMjNsssvmWge4BNIYZqbX5LueEBhUbc/DW/KlzwrXZkXwDgFHagFXB
+9jtQA140f9+lgiDveKd0XfQwjHhZJX8OJ7M99Wg2T/YTqABnMl2PTDqnA1XycPc8KDg/Ns5yT8Hu
+lc5qTJwFtNPZmzck97RGS4G4BE/P6zyQKSOcIdl+bdvx44gE8UswYYxlC3dLDRa10H+zkVa6rAPV
+zfzYOttm+7gdQ3AUC6uyjXfDFnFL3yDCLL3sWXtJzmlfywnbw7AiZgcMtxWp69KUJ3MgbC6+/rT6
+LcCkWpu3hY6m/Pe0MhweFsDpbBYDlXBjpIDHsK28bGsBNJ8DW8a7ZVN9l8SascZJTEdvlB1mvEWE
+T5ImA7smeoQM3O04IXS3rUIW35bmVBObLR6HBGB8nCbgGEjQf8Y7Glu0O6tJgE5cHW+04OoeuzMT
+uwp0wT/YFFUtizI0eO0yCQBwiA92CFB11iYuHM9G+S3egIcO2VmYtAMRdOSJ4Yln91ah3JdO2aZs
+aKq5Ko4O5S12u5vZDBC9V2chZtI6OijrGN2BXJeae23sapAq7GmHzgpd56bE2H8zJOcTAacjNWBw
+K4LacdkgDuI7yh5EoMqPHWqJYAorIy2zs521nJbOjBwtpjTGjd28nPHzpruqhZgwY2nHY9EHZtZ2
+uKICamyMec09WwYzAO1Eu6bFyicgMzuAVihn65yAxVq5axxtt1DcBhRrXJAnYCHIy8mfALsAhLv2
+YBa41+i8U0TAHQ3dsRvAVi0lB33MiBEZly2+mOvTQsbds+RI62s5TtD4hg1G9v/YI2wG69ZSWkXd
+HG17mfA1/AZ3NH7oBAG4hyl2gEk6nYNkI5GtnGLm28AApth8hrlsWSJCbknf4PgBzOMxW2di3KZh
+sNGyv3p7MQFXuxyQsln/7gPY/MjuStYDlndoANqvgUIjbTZKFj0LhNhPI1AYfMuaoyNHhCT2QwE9
+K54MMOa0i59ZrvdI5rAAjLtg32nZn2r5uFdz7vqI9IlWxB8VZIK5z/StPa/2slH1gPEWay5V0e/x
+W8Lbe30epoQl6lqfmqnPfLQZ/3qT4+dd4t8trXyySYIWNHl+xuU54QQ9cXr5bng4+tfja4h+boBt
+mZ/6q88QsPefd4C3H1/r+96CHxsgjQs7uLC34GsHbLDP9x9ms33tw/H+cRt+3YTzxzb8epu/2YHj
+awt29ONrC/6wATLu3v/1+NcxJpINQIcwW0CzkxOWoF7bDLZy1mXywPxz1ElYxIk7w2D3E0Zhs6Jp
+D4z/HW3RBxhZILAz/w54iuVs8L1qxpaLJCyfRbTJIe4msd4/7+Dxly0c4U2iP6FBDNDGufsorVsw
+FQzy61B4m2Vsp0vT1gNI6mEh+c5k4OudAnDabShZ6ZaUe1s+9RjsmSa2UTGnTlui8sjw2imrW6sd
+YBygaQFKWUNopg5iKOyB/5w9YaNQ1BcCX+0QA1rH/uxBQZsoFf4FKRZLhjFyHyPx7yC5Od0w7hHN
+n8YGsJLjy3AM81gWBwKJHArTrMmP1chdnm+z9xisge220qz/1U24IVJYfPJ1VCtzeAxziqO20+FF
+rHTZWGoZa3BrrQGLDkZ1xH57F/+YuR2XQwLYhDYBEa3tZAvo1dkhybqWgoXdA8AwoiDUt7BG82WG
+yMAs3HF+OdPXmby30MNiL5QEPJBsfbhPG9uGFSLB+SJstU2LxRKA7yEDpzmqdZkqzJM/QaRY+yPD
+WtZtBUKDQp+mf0Fcwa8mMJpUId1saDvZpzXMtDlMimOO1i8YLsKfOBz98HPJL6lwcN1l0q7seRCj
+IUXY++BmZmcb7OlJeM5oi92YF/QML3KaaOxnPsx0WOtpCKbIMhbYhOMIhsHOTzO1LSrB5HdzEZZ7
+OIH/sawbvtVMy75HhOe11/JfzKRTODhm4397TAOsrk80CW2G3YFB5mPGBNXjQ+oertLqUSQBEGEF
+oc0yzpDILMN2Gj7/Ygc+jMRuRU6hYHzQ60938t2rExouDWu32P+wuZelLDg07L4LzPK8pDfobeZT
+MANI8I7bZ2sYTRDa4lHkSEm05eeNRGQAo2WupoWuqlF5OngZNaj4wSG7ee1vlXAirCh1u63dBMqj
+wtPfFsffjI/aoIB2hMQJNn7m6FRrn5Zib6eSctyGTSPW5AFnBybleRzL1djIMuIhiBODpls0ukyk
+zGyILnvrHUN0QaMKNAZQlAvHVhzNVp0PHS3QRl8PG+OfPWEQ+TEWtAcg5k+diQXAVqLW+tWOB/Md
+uzUdeuPV8osJMZ3SD9gS1s6hVTXmFJuVOueeyWThzH/AwL9aOA5Qh3OIqgMKTbramRaiPRWOl4BD
+Q1Ax+FYB3VfQoouk92xwsYWDXacSdNxCFg0FlFoOqyA9K0TEB2L7afN3rutQfIRbIMlnU2TQG+d1
+DTFX9VsYLByv0aKJYDeJE8A7fgmCYcWY3Qy4s8IVzTRDi6fVETo666Zk9PZ65gON0SS95vg1Pfa2
+J+v6UPxg7u6EQWJUomDcUqkdksP0Of6Ck7JTxykNh5OSimFG/IeVb6zf7ywppgPtvnb8Rtrt7g8m
+LO7IC2cJgUcmrFnA3PtlMkf5t+PYfaW4+uAkDUeOxDc7Oh1nwQNj0+x3erKRCKCxKRUEEWhv6UIZ
+zuYN+enLzmWDLD3fo9ozaYvatEXNr2CAAdqTqCk7vmwZrHMZzd5ODUhlpwKYHch/A8gvMQHWDT4W
+nL+sp4mBq9oitGddlQPfkuziE/Rqcp0z2bq5qNkGSGxBZK+Mk3FQ1Px86wAspt52Xqxnz5kcztLI
+xRb9bY1NsLf8jmg4xCwdlsx+vwuh2tR1G6S+B7xZauQcNec7mBw6Dwe02ta2nAOya98nJ8yDxat1
+vFlgPywOrrsbAN6ECx9OeKimIi4DGHe2XQgrmCwTwlfs+pLTyBJADavhdPhgHc18/GqJadTHonQj
+UI4QqY5E40HSwiIcMO52747Vy8H48RwIyOXADZhgSdsi4VZ2im4lo6uWO+rTdy7BZBFAAOIHhTfI
+dH7GonaHW3ycevDLosqO+T/WGWlseNEmAOypUSSn7BlI5XzQtZCjDZLBllXf299Yh2OJbpbmMNQ5
+7A9TNBAsqDy6FNv0qxzgPh5He5D698AMgDacvLThH/DxDlb/wT4TYKgi0E+PAi7w0KPLqkZ+cJsv
+sm2m5XWcGqe2Hq54JqcU8jOHmyVHO6FuTut41qfYfjgYAnUVVD6ORK/Bmrrpd9k8T83Z0nNbY6ot
+BWCZzkaV5jfXRItvkYRx/VNDrFPeXidiHw7kZX/CatH+t+f2qyfwi//aW3OqkoJ3Dg28cYBtLUc3
+VBA+X/WxC1NK3QH/UD6oF5iyv3mjfCD8b25x/HKPD21AvXers8MCP+zANt5rj1N5/v4xD5Oj3+2+
+v+32dbX/eIPPHhx/WOFneX/dgD0p+msHzq89OP+4C8fXNvy6CZ9R0/P3t/Dhvhdno/f38o5PH/Mv
+W3D+2ISvLdg5x0+C+B86/o/PJuzx27+5z4/b/KswHG6GWU2/viBEx+qaNzEaYm2/c6TntABhTPuD
+URujtICHZOUASwpmKlNkj6KjdcPW+h1fznumzXRivzUXTuxxUDw2OPklETjv8JzBuRa1hGdgSQHC
+K1p7zAUNpVkh2J6vkUWr6y1ma37tj13+192mw/OlcIJWz+azs1wrOYrXOF7eX1ARYVAxOwaq+xUI
+7GHcYRrbaPQL6QqmaIszSW9DcIahnazyornH/m4NWGixNOjODkS0Ae0u2Unx1S93sdn/vtfcX/xw
+XXs2tg2yqe/v9clPCE4ZdmaKnY+v34vUdhIrV/mOkywQtwXI+G56/4fRt8fPF17Ye7W8GNDtZJvI
+llpjVK1yCQvn0xPwAFTgzC+MjglFnoqFzmD48LHE5W6mcLWQFvc3LaRfOXLZhJcB2lFCZTg32wCU
+rQ1wWpsO2nkE/XFKTN81eX75hD0A3QHc4xPRspa+6BE+I5S/Bk3uIQP7m1sUKficBfZHW9NpTVn8
+N1K8ql/YURySZCn2Hiq0ur0M+2scjGQ/UGdDeDpGo8VDI10OB0Uu45S7twuaBIu7ltSrWgDkv4bl
+b6eJph3Qe40X3vLXa3CoUIMGGT0acg0iu8F10RqVZS/Q9exJEGln+QYSNjdnTGbi8HcRfoq6sJ4l
+rLaJfBxld+bMZ38vSZFrKTp+J1PzC4lKt7w9nd2Od7uxd9QM7zxWfh82yJEn29RKsk1cs7PVjS97
+2MxZs0l+oJO0eGQr5U1ofILvw5valpBbt1jJcbKHjYDXv49z9GuLnHf23l+G78/vOt6/fv6XOZGQ
+OwPAyBAHvUeqgiz9gqOMXzTkYDYr9+R40PIqCWfHnACt72e7cugzZ55QM4dU7dlaNraX6eDs0eJo
+ztZKTkywxw5hOWzL5YDCtkmP2N2AJ8LtrLEBDbyNU9zc580OfJqA+BEdLNXRJ2VgsuMp7oqogm5a
+BmhjVTGTsvw6idfZQlhE4DmHOZ/7RBKS8x/q/jYx5wui6rczFWY9bOK0xKB3i7E0A36tU7L0wG6a
+IJkqINlhEwnWRy7bv4bLO9qs3nZZcvzdiShO2b66I4gBQ9g2cMbjbEnEx4lMybFltva3bH6ob+S+
+ucy07ICzrOPAeDvr8X3ccnNyHITQ2CIQaOKVwjJ8/NF5WyJkvq/fGnMX58MaWnZ22/E9vG1YpAtI
+R5qf/QVL7+0cKr/E5dqluH4Bxpjhkxi+zLiDx20ZqCl/uldhnTb8vs/3iLfht3axjelNw2mQl6ki
+wHesG10jYKYI4FGOzud4qymGwxOWdGL1xoVBSzZq22PDSkN26nQE5u4AguOwst/a9hkGIsHJYnNh
+VTwsQj8Bx2k5/SeffY+99e8bL1iU+amR8MhO6+pPv1rJGqknf38RRo8OwIlSFrg2bArDaiIYXvaG
+z+HLP1l9hodfu39UDm9D4D45aaT/s+PZ3Xg712e3P9ff6PPRi/fud2kNQ/soBRjadgZkA4dgvbIt
+Q4/z8VmcY9TQUR4db7q/YyHbs76/J+n9fJdUdwb6a1m0EzzBrfiHUTGmjlSD38X6dNDrMe1d3mik
+7u9+MKjr6OftuKF4G5WZ+Dt3bWP1+1DSbf/YqjZWcD720D7HcHRmsOWj8RPwwS6F4EEuB9nMPUQm
+TYs4U3amSdxfBoD9YwF+mcX6iLcjeaIHZFaYH+TkxBd8GkSj+B0FFgZUJ9nwQrOfyXndv3O2x++9
+MAQ+3hfiIdewAt3BTjZ2WiZzcqifZnE7Nva4kOs+Um4ArrBAXzYAGEjueGe7tZagUrjrN801Jx33
+Xa7hy07qilaXP0j6O+aCHb1m98f8+j6106KRnOFMAU74etK7e84IRbN2/ZqW/OfTuvkz7ZCEzTTH
+6nlDq6d/viYlq0jn56KfxpzPG3/zvu9r7B8B2D+C+P56heoIXAM2mFsDeFjAjSN36zk87g0NzfSL
+Jawit7r+OebYpStjvNvYxvfL2Fpk+FVdiKcL3ufmQLe5nZrYF6tu75V2goM9mt8B4rAxJ8ycDohx
+KHjY2eoFZo3ZiRV4jmk+Fkue/D4wEMXwGwbrrhSbkOEDqKyA8H58lV8HoLnODmh6WnZ4HmAz37ZB
+FUO0XZW1IcGuSyNefM7evHxw/aTLsxTXiX/KfF/sye2sGJyb/92CWCs//SbJH9/EpLtMn+8cXPex
+vwjGOBSWBoq/v+iwPM7xZGvbLt63l955WbuXfgNK9P0DHfAj49OPf6Qn7RrBYW0A1MMUSbWfoRt5
+7V8jz1hOcWijlqwZ+rAG6X4/RaB5c5GdyfArMdJOCjzByZP3h7Q4KunDOTZ1+ofL3PH4XMahggYI
+Pn1iVmnh9X5+2eR3dunrKuf5fR2/eehzJZC/Q+7e/hguRtr8ro0XwfLbNU8gkRPTQQLAI4tmd0Xh
+/qKp9Omni59+uuLA0rdfwfDlV8/d18z1r3f5nvFJIn7e9JvgGaud7fh/OEZocONCYnwAAAGFaUND
+UElDQyBwcm9maWxlAAB4nH2RPUjDUBSFT1ulolUHi4g4ZKhOFsSKOGoVilAh1AqtOpi89A+aNCQp
+Lo6Ca8HBn8Wqg4uzrg6ugiD4A+Lo5KToIiXelxRaxHjh8T7Ou+fw3n2Av15mqtkxAaiaZaQScSGT
+XRWCr/ChDz2IYVBipj4nikl41tc9dVPdRXmWd9+f1avkTAb4BOJZphsW8Qbx9Kalc94nDrOipBCf
+E48bdEHiR67LLr9xLjjs55lhI52aJw4TC4U2ltuYFQ2VeIo4oqga5fszLiuctzir5Spr3pO/MJTT
+Vpa5TmsECSxiCSIEyKiihDIsRGnXSDGRovO4h3/Y8YvkkslVAiPHAipQITl+8D/4PVszH5t0k0Jx
+oPPFtj9GgeAu0KjZ9vexbTdOgMAzcKW1/JU6MPNJeq2lRY6A/m3g4rqlyXvA5Q4w9KRLhuRIAVr+
+fB54P6NvygIDt0D3mju35jlOH4A0zSp5AxwcAmMFyl73eHdX+9z+7WnO7wdmcnKiyFAsKQAAAAZi
+S0dEAP8A/wD/oL2nkwAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB+YBDgs0E+K3UXQAACAA
+SURBVHja7J11uF3F1YfflYSQhCS4BdegxV0DLVoIUNxaihSH4toWWtxK+YoWWqAUd7cEp7jTBKcE
+l0CEeNb3x+zbXtLIOWdmyzn39z7PeXJpz5mZPXvPrN9eM7OWuTuiHMzsGOA09URLM9jdl1A3CCGq
+Rid1gRBCCCEBIIQQQggJACGEEEJIAAghhBBCAkAIIYQQEgBCCCGEkAAQQgghhASAEEIIISQAhBBC
+CCEBIIQQQggJACGEEEJIAAghhBBCAkAIIYQQEgBCCCGEqJMu6oKm5Qx3P0bdkD9mtgTwL/WEEEIe
+ACGEEEJIAAghhBBCAkAIIYQQEgBCCCGEkAAQQgghhASAEEIIISQAhBBCCCEBIIQQQggJACGEEEJI
+AAghhBBCAkAIIYQQEgBCCCGEkAAQQgghxH9QNkAhhEiEma0H3AsMr+EzbAr/2wfuPlS9KSQAhBCi
+iTQA0D37zBEhJL4EBgODsn/bPu+5+3h1s5AAEEKI1mT27LP2JP/7ODN7b3LiwN2/UrcJCYCOwapm
+1tXdx6orcmdtdYGoCNMBfbPPlpN4Db4BXgEGZp9n3H2cukxIALQe/YAbzWw7iYD8MLNdgIvVE6IJ
+mCWbF/pl/z3SzJ4ABmSC4EV3n6BuEhIArcGWwM1mdnmTtXucu9+dg7HuNOlbUSSLAqcDnfWoiSZk
+BmDj7APwnZk92k4QvOburm6SABDNy0+zTzPxHTBTDuV2BW7VIyHEZJkxE8htIvkrMxvYJgjcfbC6
+SAJACCFE6zMbsF32wczeBa4Grnb399Q9rY8CAQkhhABYBPgd8K6ZPW5me5vZjOoWCQCRDx+oC3SP
+haggawOXAp+Z2fVmtrmZyWMsASBS4e7XAceqJ1qWZ4Ed1A2iiekGbA/cBQwxs/PMbAV1iwSASCMC
+TgeOU0+0pPHfyN2/U1eIFmFO4FDgRTN71cyOMLO51S0SACJOBJwGHK+eaBmek/EXLc6ywFnAR2Z2
+j5mtry6RABCNi4BTJQJk/IVoMjoDmwIDzewJM9tUXSIBIBoXASeoJ5qW5zPj/626QnRA1gLuMbMX
+zGwbMzN1SbUxBYKq4E0xOwH4fQtf4nfuPlMO/dYNGFWi8f+JjL8ws+5Ar+zTs93f0/rv2Qkx/mdr
+ka54EzgNuFYhiCUARH2TyInAyRIATSEAXgB+LOMvEj3HswBL8N+kP21/L0JIBtRsvEcIqX2l8pZI
+AAiJgFYSAC9kb/5D9cSKnOeDLsDCk4iCvoQNec0QsGcIYePgZe4+SndUAkBMe9D/BjhJAqCSAuDF
+7M1fxl+UOUd0AlYENgQ2IATx6VHhJn8BnAf82d2H6w5KAIipD/DfEkJ0SgBURwDI+IuqzhddgdUy
+MbBh9nfXCjb1M+Awd79Wd00CQEx9UB8OrFPj1xcElmuwqg+AV3K+nJHuvkvFBMBE4M4avzscOFjG
+XzTJ3NEj8wq0CYIVqdYJsAHAAe4+SHdLAkDED/h9gYsa/Pkl7r5vk153jAAY4+7d9PSIDjA/zASs
+TwjxuxXQvQLNGgucA/zB3b/XXSoGxQEQQogOhLt/6+63ufvOhPC+vwQGAmW+DXYl5EV508y21F2S
+ABBCCJGvGBju7n919w0IS4fHAWW64hcAbjezO8xsQd0hCQAhhBD5i4F/u/tp7r4ksApwAfBlSc3Z
+IvMGHJdtahQSAEIIIQoQA8+7+8HAPMCWwE3AmIKb0R04BXjFzDbQXZEAEEIIUZwQGOfud7r7dsDc
+wInA1wU3YwngYTP7h5nNobsiASCEEKJYMTDU3f9AWKc/Avi04CbslHkD+uluSAAIIYQoXgiMdPdz
+CGGJDwA+LLD6uYCHzOw3WQREIQEghBCiYCEw2t0vBBYjHCV8u0C7dRLwgJnNqTshASCEEKIcITDO
+3f9KWKvfCXitoKo3BF7WBkEJACGEEOUKgYnufh0hDPlWwHMFVDsX8KCZ/U5LAhIAQgghyhUC7u63
+u/uqwM+AjwqwY7/NhMBcugMSAEIIIcoXA7cASwJnAeNyrm4DwpLAhup5CQAhhBDli4CR7n4UsDzw
+aM7VzUnYHHiSlgQkAIQQQlRDCLzp7usDuwOf52zXfkM4LqhTAhIAQgghKiIEriacGPgzMDHHqvoB
+T5vZoup1CQAhhBDVEAHfuvuBwKrke1pgIeBJM1tJvS4BIIQQojpC4AVgdWA/YGhO1cwBDDSzH6vH
+JQCEEEJURwRMdPeLCcsC9+VUTS/gbjPbQT0uASCEEKJaQuALYDPgOGB8DlV0Bf5hZgeptyUAhBBC
+VEsEuLufRtjANyQnm/cnMztFvS0BIIQQonpC4AlgBeDenKo4zsz+YmadJQCEEEKIaomAr4DNgaPJ
+Z0lgT+BmM+smASCEEEJUSwS4u58JrEc+OQX6E3IIzNQR+7eLHjEhAJjezFzdIBIwChgOjMj+ndrf
+XwCDgcHu/rW6bopC4CkzWwG4MvMKpGRt4HEz29jdP5EAEEII0Sjds88c9fzIzL5uEwPZZ1D277vu
+Pq6jd6q7f21mWwCHA6cltl/LEEIHr+3u30gACCGEKJJZgTWzT3smmNl7wMvAQGCAuw/uoCLAgbPN
+7Gng9qzPUrEkIVbAhu7+fUfoT+0BEEKIatMZWAzYDrgQGGRmQ8zsajPbw8wW6IBC4EmC6/7fiYte
+HbjRzDrEy7EEgBBCNB/zALsCVwAfmNk7Znapme3YUTLgufsggrfk9cRFbwb8xcxMAkA0IzEZtpr5
+oZ9AvtnFhKgqiwB7A9cCn5rZY2a2l5nN2OIi4GNgXeCJxEX/HDhDAkA0IyMjftujiSeDcYRNU0J0
+ZAxYB7gM+MzMrjezzVvVre3uQ4GNgDsSF32kmR0mASCajeERv+3Z5Nf+vG6/EP+hG7A9cBfwsZn9
+0cxWbEERMArYBrg8cdFnm9muEgCiowiAXk1+7c/p9gsxWeYADgFeMLM3zOxoM5ujVS7O3Se4+17A
+qQmLNeAKM9tEAkDIA1B97iBuCUSIjsBSwOmEDYTnm9m8LSQEjgcOBlIF9poOuMnMVpUAEPIAVHvw
+fwgcqUdAiJronhnLd83sEjNbuEVEwAXATsDYREXOQIgR0FcCQLSyAJi5Ba7/YuAhPQZC1ExXYB9g
+sJldZWZLtIAIuB74KTAmUZGzAfeb2TwSAKJVBcDcZtbsXgAnnJF+QI+CEHXRBdgNeMPMbjCz5Zp8
+LngQ2IV0x4MXAG41s64SAKKqD/1w4LuIIvq2QB987u4bA/sSkq8IIeqzDdsBL5vZHc3s+nb3m4ED
+Eha5CnCmBICoMjHn4ZdolU5w90sIG572Bf4CvEI+ucWFaFW2AF41s1PMrEeTzgMXAyclLPIQM9u6
+2W+sBW+paDXM7CqCK68RTnH3E9SLQjQ09roTNtNO7TMjsDDB27Y40Cz56D8ADnH3O5r03lyUvQyk
+4FtgRXd/v1mfVWUDbF0GyQMgRClvm6OAUcAXdRimOTIh0HeSfxer2Dy9IHC7md0JHOzuHzTZ7TmA
+EA9hmwRlzQRcn6UQHtuMz6o8AK37FvIz4KYGf/5vd19AvShE6eO4JyGs74bABsDyVCdfxyjgD8DZ
+zWQAzWx64H5gvURFnu/uh0oAiCo95MsAr0UUsai7v6ueFKJS43pWYP1MEGyYeQnKZjBwgLs/3ET9
+OCPwKJDqlMM27n6rBICoksr9nsY3eu7j7pepJ4Wo9DifB9iEcNRt/ZK9AxcBv3b3MU3Sd3MBTwEL
+JSiuKfcD6BRAi5INwpg82RuoF4Wo/Dj/2N0vd/cNCOvzJ1BeRsz9gH+a2WJN0nefARsDXyYobibg
+hmaLDyAB0NoMlAAQosOIgX+7+ynuvgSwOnAh8E3BzViekGxo5ybps7eBzYDRCYpbGThLAkC0ggCY
+w8yWVxcK0ZRi4Bl3PwCYm7Dj/b4Cq+8FXGNml2VHIqveV88TsiSm4GAz26ZZnhMJgNbmUeJCYO6i
+LhSiqYXAWHe/1d03BVYCbiFdlrxpsRfwbDPkFXD3S4FrExV3hZkt1AzPhzYBtjhm9nw28BvhE2A+
+d5+onhSiZeaEpYBjCdnyOhdQ5Uhgf3e/quL90gt4gRB7Ifrly93XlwAQZT/UZwFHRBSxsbsrqY4Q
+tY239Qju9hHZZ2S7v9v++xPgHeDt7N+PvISJOEv9ewzwc0I2wLy5HNjP3cdV+P4tDzwNdEtQ3G7u
+/ncJAFHmA70ZcHdEEX93993Uk0LUNN7Wp/69N6OB9zJB8DZwdJFeNzObFziKsIs/76iD9wLbuvv3
+Fb6H+xKONMbyOdDX3b+r7LVKALT8hNQN+JTGY42PBPq4+zD1phC5CID2fOjuC5bU9qUJJwfWzbmq
+fwKbu/s3Fb6P1wPbJyjq/9z9oKpepzYBtjjuPhq4IaKIGYD91ZNCFMKLJc4Vb7j7esDu1JHHoAFW
+Bx7PPA9VZW/C8kws+5vZihIAokyujPz9Yc2aBlSIJuOlOt5S+5vZ3tnmtZRC4GpCMqI/E3eKaGos
+BTxZ1RMCmcdzeyA2qmEn4EIzsypepwRAx/ACPBWpZmcH9lFPClEpD8DBwKXAZ2b2NzNL5rp392/d
+/UBgVeDZnK51fuAJM1u1ovPmS8BhCYpaLfMoSACI0og9gnNkll9ACFGyB8DMZue/2ex6EHbyP2pm
+b5vZcVmOgBRG8AVgDcIy4KgcrndWYICZbVRREXAhjWdVbc9pZjabBIAoi6uJCwDSB9hT3ShEbnzu
+7p/U+N2tmPwZ/kWBU4APzexWM1sptlHuPtHdL8q8Af/K4bpnAO4ys+0rel/2BD6KLGMW4AwJAFGW
+kv0AGBBZzMlZOlIhRElv/xk/m8b/3zkTCc+b2V1mtlqCOeR1YJXsZSI10xHCB29awblzGHBogqL2
+MLM1JQBEWZwe+ftZE5QhhJg8Na3/m9nM1Jesa3NClr77zWytSGM40t13J4T5Tb0k0AW4ycxWr6AI
+uIUQwyAGI2wI7FyV65IA6FhegIeAZyKL2bOKA1SIDuQB6J+9MdfLRoRNdw/HegTc/XLCksCgxH3Q
+A7jbzJas4P05iPisgctl5UgAiFI4pdVUrBAdyQPAtN3/02IDIHqTYLYksDKQOtztLMD9VYsT4O7v
+ksYDerKZzS0BIMp4iO8EXoksZgXSHI8RQgS+A96fpvo26w38JLKuJzKXdor5ZGQWKvwo0mYZnC8T
+AbNU7D6dTnyAoF7ACRIAoixOTeFJMLM11JVCJOHlGhMCbQHEHMd14PAcXizOAn4BjE9Y7FKE0wGV
+CULm7mOAAxMU9Uszm0sCQJTBTcSv3U0HXFdBhS5EM1KU+/86d88lsE+W7ndLQv6QVKwB3GBmXapy
+o9z9fuJjA3QjLktrEpQMqINiZpsQv6sV4E6gv+tBEqJtbHUDek7ymQGYEViQcFa/7TM/4cje7lkI
+3qmVOwPwJdC9waaNIWSn+zDn61+NkIE05ZHhv7r7Lyt0j+clxEToGVHMSGABd/9aAkCU8RDflOCN
+AuCozAUohKhvDE4HLAR8Nq2Mm1mgnOsjqjvT3Y+uo23dgTGNpCY2s77A/cACCbtrH3e/rEL37ggg
+dt77vbv/RgJANKuKhZAwZCd3v0G9KkRu4zUmRe1XwKL15KY3s2sJx/J2cfcRDbS3D3AfsGyiLhgN
+rObur1bkfnQhHN1cJqKYbzMvQCnp1rUHoAPj7kOAkxI9R1eb2YbqVSFyozONZ+c7qU7jvyewI2FN
+/ykzW7CB+eUTYF3qi3A4NboR9gP0rMLNcPfxxKdKnwk4QB4AUaaKfRlYOkFxw4H13f1F9awQuYzX
+eQmJf/YAFqnxZ4OBZTKDVUsdSwHPZW//bXwJbOPuTzTQ5jmBJ+to77T4h7vvUqF7cjOwTUQRXwIL
+uvv38gCIMlTsfqTJ+90LuNfMFlPPCpHLeB3i7qcAiwHrA1cC0zIcR9Vh/LsT9hlMevRuduBhM/tl
+A23+HNgY+DxRN+xsZntV6LbEBlebnZLSBcsDINoG/h+A4xMV9wWwqTwBQhQydmcjHCk7gP/dz/OI
+u/ero6yLgV9N42vnAkfWuznQzFYAHgF6J7jsUYT9AK9V5B7cA8QkMvoYWNjdx0oAiDIe4M7AQGCd
+REUOB7Z294fVu0KUIgQcWMXdX6jx99sBtW7kvRfYsd7Na2bWL/vt9AkueTCwciMbFHPo+zUJyxwx
+/MrdL5UAEGU9xPMQ9gPMlqjIsYTzzderd4UoXAj0dvf9a/zNQoTNejPWUdUbQD93/7LO9m1LWGZI
+sQR9jbvvWpF+HwD0iyjiPUKchvGFtVkCQEzyEG9KCOJhiYqcCBxHOIOsh02I6o356YDHgUYyBL6c
+iYBv66xzP+DCRJewk7tfV4F+3ACI9XhOMyBUSrQJUPwAd7+X+OAWkz5jpwN3mtms6mEhKscpDRp/
+gOUJG3/rOprn7hcB5ydq/7lZkqSy584BwNORxRxTqGjRS5mYjJLtAtxF2Lmbko8I64ZPqZeFqMRY
+3wS4h3iP30BgM3cfXUfdXYEngFUSXMr57n5oBfpz82zujGGtouZIeQDE5JTseEKI4GcSFz0f8KiZ
+HZNtOhRClGes5iYcI0yx3NcPuClbTqh1nhkL7ECIhhfLgWa2XAXmzruJD3y0e1HtlQAQU3qQRwKb
+E0IFp6QLcBrwYrZzVghRDn8D5khY3ubA382sZrvi7u8DeyaouzNwkZlZBfo1Ni7A9mY2fRENlQAQ
+UxucXxOWAT7KofgfAU+Y2RXZrmUhRLGcA3yXuMztgb/UY4jd/RbgggR1r5FITMRyC/BmxO9nBraQ
+ABBVEAEfZSIgj5SVRghp+paZHZylURVCFDO2HwBWB95NXPQehGBB9XAE8EKCuk8ve7NxdtrptMhi
+ClkG0CZAUduDYrYyIbNXnoPrs+yt5OIqBPcQooOM7VmBm4H1Ehe9q7tfU0c7FgZepL5YBJPjL+6+
+d8l92plwrn/+BosYD/SpN8aCPAAiL1X7PLA2+SwHtDEX4QjiB2Z2gpnNpJ4XIvex/TXwE+AviYu+
+2Mz61tGO95h2GOJa2NPM1ii5TycAMef5uwA7yQMgqva2MC/wALBkAdWNBm7PBtL9RUbIEqKDju9f
+A2cnfDl8lRCzv57jgbFx9QFecPeVS+7LvsCgKl+DBIBo5MGelRAtcLUCq/0CuBa4JhsYE3UnhMhl
+fG9NyAnQJVGRl7n7PnXUvzAhzHDsnqDN3f2ekvvyGWDViCKWdvc382qflgBE3WQuww2B+wusdg7g
+EOBZ4Eszu9nMDjCzJXVHhEg6vm8lbEJLJbL3NrOd6qj/PeI30UG67KYxXBX5+1w3A8oDIGLUbRfg
+98DRpMsd0AifAs8TsoMNavtkQkUI0dj43hO4LNHYHk7I3PdWjXVPD7wOLBpZbz93f6TEPpwN+ASY
+rsEiPgbmz8vjKQEgUjzkGxPW6WevWNO+AYYCI7LP8Ozf7wmpUoVI/gJNyFU/vN3zNgz4ABjs7h83
+2dg+mHQx+18BVq91P0A2r9wXWedD7v6TkvvwNqB/RBE/cfeHJABElSeKPsA/SH+USIhWYgTBU/Vm
+ZtzudvfvKj62jyM+ul0bF9Waojir+yZCWPIYVnP3Z0vsv58BN0UUcbW757IUIAEgUj7onYHfEtbe
+tL9EiGkzDngEuA24vaoeAjM7hZDWOxYH1nT3f9ZY77yEcOQ9I+q8w937l9h30xOWKWdusIiRwFx5
+xEbRJC2S4e4T3P03wDqE4z9CiKkzHeEM/p+Bj8zsWTM73syWrtjYPh64PIU9BP5Ua6hgdx+SwPuw
+hZn9qMS+G0M4VdEoMwA/zqNtEgAijwf+KWAl4DDCOqgQojbjuArwB+B1M3vLzPaqUObMAxMJ+1WA
+n9fx/QuIC0VuwLEl913saYANcnngtAQgcp3Rwt6A8whJQoQQ9fMmcIy731mB8dyXcOKmZ2RRnwGL
+u/vwGus9ETg5or6JwBLu/naJffcOsEiDP3/D3ZeRB0A0mzfgE3ffAdiIENxDCFEfSwF3mNmjZrZa
+yeN5MLBvgqLmAk6s0wswLNLWHVzyfYwJDby0mc2RukESAKKoieNBYFnCjt4X1SNC1M26wD/N7AYz
+W7TEsXwNafYDHGJmi9VY57eEfRIx7Ghm05V4/66N/H0/CQDRzCLA3f0Wd18J2Ax4Ur0iRN1sB7xp
+ZheY2cwlteEgQqCeGLpSX9rg8wgxPBpltmzeKWv+ewv4d0QRyfcBSACIsgbDve6+dqZq7yNd2FEh
+OgLTETblPWdmS5UwfkcR9vWMjCzqp2a2SY11fkmITBjD7iXftwFVEgDaBCgqQXbed9dsgCq+vxC1
+MwzY2d3vLmHcHgacE1nMm8AyXoMxMrN5gPcy70EjjCWcqR9a0jy3G3EnAuZ392Qp2eUBEFXxCAxx
+99PdfSlC9qw/E3f0R4iOQm/CJsGjSqj7AuJS3kLY5LhZjfPEx8DfIurqCuzQpB4ASLwPQB4AUWWv
+QFfCxqd+2WcV0qUoFaIV+Tuwd63x9hON00Jj9mdBfV6JqOtpd1+zxHltMLB4gz+/0t1/IQEgOqIg
+6EmIMtgmCJaj8SxbQrQqzwBbu/unBY7NO4AtIotZ1t1fr7G+l4DlI+pavKyYAGZ2EY0fpfzI3edP
+1RYtAYimwd1HZJsHj3L3VYAemZLeAjgC+AvwOPCFekt0YFYjbA5cocA6DyOsr8dwSB3fjY2st1uJ
+9ydmGWA+M1skVUPkARCt6i2YDujV7tO73d89JH5FjswK9AHmzv5t+7tnwe34AljF3f9d0Jg7HTg6
+oojRwHzu/lUNdc0JfAw0Gib5A2BhL8EAmtls2b2xBovYx90vS9IWCQAhhChk4p+FEBFzK2DTTJTm
+zSvAWu4+soDr6wm8lYmdRjnB3U+psb67iTvXv0atWQlz6KtXgEYTFF3n7julaIfegoQQogDc/Rt3
+v87ddwRmz0TAJYRUsXmxHHB1rdn3Iq9vBPD7yGL2ryNaX+wywE9KfBxilgGSnQSQABBCiOLFwFh3
+v8/d9wXmIQTVeTen6rYmLpFOPVwJfBPx+z7UnjjsduC7iLo2KPERiBEAc2ZxUyQAhBCiycWAu/uN
+hABYBwNf5lDNCWa2YwHX8j1waWQxB9dY12jgxoh61jCz7iXd9keBCRG/7ysBIIQQrSMExrn7BcCi
+wCnExb2fHFeY2coFXMqfgfERv1/VzBao8bsxywDTA2uVdK+HAS9EFLGEBIAQQrSeEBjm7idkb3kp
+N6l1B243sz45t38IcFNkMVvW+L0ngW8j6tmwxFv9nDwAQgghpmRI1yesq6eiD3BRAc3/YxECwN0n
+Ao81qQCICaEsASCEEC0uAsZkoV+PIF3GzC3NbO2c2/0M8HREEeuZ2Yw1fjdmQ92KddSTmsESAEII
+IaZlUM8BNidu13t7ziyg2edH/HY6wjHJvAVAZ4KXpdkEwPwpNjBKAAghRHOIgPuA1UmTJXMNM9sm
+5ybfDsQEIKp1H8DrxJ2cKOs44Ec0vtHTgMUkAIQQouOIgEHAtsTtsm/jVDPrkmNbRwMPRhSxaS3t
+y8L5PhJRz4Yl3UsnRE5slOhlAAkAIYRoLhHwCDWela/BgOyVc3PvjPjtTIR04LUQswywlJnNUNLt
+jFkGiD4KKAEghBDNJwIuAi5OUNRvczZ+dwMxCWdqXQaIEQBGyCpaBqWeBJAAEEKI5uRg4lzfAHMB
+h+coVD4Hno0oYuMa63mLkB2wNGNaggdAAkAIITqoF2AcsB0htWwMR5hZjxybekfEbxevo20xQkMC
+QAghRFOJgK+IT/TTq9Y37QaJ2QfQCVi6GYxpCQKgl5nFpF6WABBCiCbnUuDtyDK2ylGkvAZ8GFHE
+cq0qANx9JDCkrHZLAAghRHN7AcYBx0YW89M8jwQSl9PgRzV+L2ZD3eIl3sIY4bKoBIAQQnRsEXBz
+pJGdBVgnxya+UnEPQE8zm6ek2xcjXGaWABBCCHFk5O+3yrFtMQKgJg+Auw8lLiJgWfsAPon4bS8J
+ACGEkBfgCeDxiCL659i8VyN+O5OZzV/A23RZAmC4BIAQQohYbo347QJmtnxO4mQI8E1EES27EbBM
+AdBF40VUBTPrlj3QU/rMUKNo/ae7/1M9KjogtwHnRvx+K+DlHL0A6zf42x9R23HCGAEwnwSAEOkM
+elfCLtW+2WdRwqaVyRn3noQUoCk4ibgNUUI0Je7+vpm9Su075ydlC+B3OTXvlQgBUOvbeUxynZ4l
+3bYREgCimQ39nNkAXaKdse8LLETIty2EKNYL0KgAWNrMOrv7hJw8AI0yU43fi1lm6FXS/ZIHQDSF
+oZ8fWGUyxn5G9Y4QlRIAv2nwt9MDCwLv5tCu9yN+W+scU5oxlQAQrfhm3w/YIPssol4Rotq4+0tm
+9gnQp8Ei+uYkAL6ruAAoawlAAkBUwuDPBKwHbJgZ/KXVK0I0Je9ECoB7cmjTtxG/7d3CHgDtARCl
+GPwZgLXbveGviI6GCtEKxASXWTSnNlXdA6AlANHyRn8FwlGfDYDVSLfzXghRHT6N+O1MObUpdwHg
+7qPNbHyDtq2rmU2X5VYoDHcfY2bjGpyLu5lZF3cfLwEgpmT05wF2AXYDllGPCCEPQNFvwu4+3sy+
+B3o08PPOZjZDlj2vljfqmSOu/ZsS7tdwQj6GRts8VAJAtDf6MwDbALtnb/ty7QshAVALeW6G+7ZB
+AdDmBWhVATBCAkDEGv1OhA18u2XGfwb1ihASAFXwAGR8R+ObE2es8bp0EkACoEMZ/mWyN/1dIgaX
+EKJ1iHmL7Z5ju0ZG/LbWF5pRFb32yrVZAqB5jf4cmcHfHVhePSKEaMdsEb/9Psd29SigXT0qeu2V
+a7MEQPMZ/vmBo4A9gW7qESHEZJg74rcjcmxXrwLa1aui1z41YpYeGl4+kABoHsO/GHAMYX1fR/eE
+EFMjZilweI7t6lVAu3pV9Nor12YJgOob/mWA44Dtaf3EOuOAYdkD3fZp/98j6seY6AAAIABJREFU
+AK+hHGUCFBIArScAWtkDIAEgfmD4VwaOB/oD1uRG/T1Cms7B2efjyRl4dx+jOy9EEmKWAL7No0Fm
+1iPiJWZMLQF6zKx73nXk0C/dImzxqJjMjRIA1TP8awMnABs3WdM/b2fgB7cz+O81GqVKCFGKB+Cd
+Jn7LbUb3f8+y2iwBUB3D/5PsjX+9ijfVgTeAAcBzbcbe3b/TXRSiEnOJERfPf5AEQKGU1mYJgPIH
+63rAmcCqFW7mu8DDmdEf6O5f6M4JUVlWIm4JYHBO7Vog4rda/5cAaCnDPydwNrBrBZv3cWbsBwAD
+3P3fumNCNA1bR/x2NPBhTu1aPOK3X8sDIAHQCoa/E7A/8AdqT3GZN18DA9sZ/MG6U0I0LVtF/PZV
+d5+YU7v6Rvz2rRq/N2sTegC0B6CDGP/VgAuBFSvQnFHAHcBVwAPaqCdES8wxiwFLRRRxR47Ni/EA
+DC6gDnkARC6DchbgNGBvyj3S58BjwNXAje4+THen9GdjaWCdijbvbnf/aDJtnoOQbCqGMcDVEp7J
+2Try97dVVADUujExxstQ1lKnBECLTu4G7AGcQVxs7ljeyt70/+7uH+rOVOb5WBF4iMZTl+bNpsBH
+k/nfFwYuSlD+Zma2k0RAUmKE2Tvu/kZOz3pXYMECPAB9C6hDAkBM84FfjuDuX7OkJnwNXAdc5e7P
+6o7I+FeQbbO+kAhI80z9GFgtoojbc2zeIjQeoGcs8EGN312iCQWA9gC00CDsBZwMHETxoXudsIb3
+V+CeMqJaCRl/iYBSnikjHCeOIU/3/+qRnokJNfTBrMRtAixLAMwnAdAag3Aj4G/EncFthAnAtcCp
+7v4v3QkZf4mADsdOwAoRv/8CeCrH9m0Y8dsi1v+HufunJd27mHYPjam4k8ZNkkm9s5n9AbivYOM/
+FrgMWNzdd5Pxl/FvchFwrZnppaT+56or4VhxDHfmePwPYIMC3syLOGaYBzHLFm/LA1Du4OuTvX2v
+W2C1o4BLgbPdfYjugoy/PAEdmv2BhSLLuC3HZ3/JyBejWrN7Nt0GwGzJuLSojRIAcTdvY8KRutkL
+qnI48GfgPIXjlfGXCBBZRNETIosZmj2feRHj/p8APFrAm3RZ6/8xouVbd/9cAqD4QdeZsNHvWIo5
+1/8NcD5wgbsP1R2Q8ZcIEGY2PXALcRvfAE5z99E5NjXG/f9CHYnGYvKpDCrpNpYqWiQA6h908xBc
+/kUEbxlKCCB0kbuPUO/L+EsEiHZcQvwx44+AC3J+WVo/ooiHa6wndpmhGT0AEgAFT+ibEFz+eQf1
+cULgniPd/Uv1vIy/RIBEwCTP1+HAzxMUdWLOb/8bRY6Bh2v8XoyXwYncTNesAkCnAGobbF3M7DTg
+ngKM/+vAeu7+Cxn/pn1elpbxTyoCrlE3/OD52oz4M/8Ar2UvNHmye8RvxwBPFiAAXnX3USXdTi0B
+VHywzUtw+a+dc1UjgN8B5+ttp+lZR8Y/Kf3VBf+Zj1bM5qMUL29H53n0z8x6R967p2rxTmRBkNYv
+wMuQun86AYtJAFR3sK0N3FrAW/9NwKHu/rF6XQgxhfloW+BKoEeC4ga6+705N3lboHsBhnk5YJaI
+egaUdEvnB7o1+NuJJFi20BLAlAdbf+DBnI3/O8Am7r6djL8QYkpvuGb2W+CGRMbfgaMKaPrukb+/
+q8bvxbj/xxMypJZBjPv/Q3cfIw9APgNuT8IO27xi+Y8m7O4/I8VNFC3Jl4QjXrFsRlys8cnxeTY+
+amF24lMHd+S5qAchvPh2CYu9wd2fz7ndCxIXHO01d3+lAAHwrLsPL+n2xmwATHJsUQLgfx/c44kP
+qzk17gf2d/f31NtiKsZ/Q3d/LcHzfF9qAeDu7wP71tGG3xMfrKYjzkULEZYHV0xY7PvAgQU0fy/i
+YqRcVWMfdYkUGgNKvMWlRy7UEsB/H6ROZvanHI3/OOAIYFMZf1GE8a8K7n4iweMlapuLZjWzc4F/
+JTb+w4Et3P2rnNvfGzggoogJ1H7yYz2gV0RdD5d4q2NSN0sAJHxguwL/IKTwzYMPgXXd/Rx3d/W4
+mAq3tJLxb8fJurXTnId6mNmxwLvAr4HpExY/EdjZ3d8o4FL2B2aK+P1DdWTm2y2inlHA0yXd65mB
+5csWAF006KwXYa31xzlVcQfwC4XwFUJM5QXk54RjwH1yquZYd7+rgGvpnomXGK6usa4ZgJ9F1PNk
+iXuw1o98AZcASPCwzkEI7rNSDsWPI5yzPU9TnBBikrmnN2GD5lbApkDvHKu72t3PLOjS9gbmiPj9
+cMLR61rYGugZUVeZ7v+YjYsfu/snEgBxA3Ah4AFg0RyK/wDYwd2f1VQnhDCz6QibMTfKjH4/oGsB
+Vf8zM8pFXGNX4MjIYm529+9r/G7sMcMHm1QADEzViC4ddDAuB9wHzJVD8bcBe7j7t5r2Gpoke2Vv
+Q70m83dPmmPfypq6m0npbGaHNlF7ZyW48ufO/u1DiCdiBbfjI2DrAt3cewDzRpZxUY1zRR/i0gy/
+7e4vlDTPzQUsFVFEspMLHU4AmNnqhKN4qV1uY4Gj3P18zdeT7ffOwEKEoy/tP/O1M/TTq6fQJtHJ
+z1NaSquPdwg7/j8raHzPCpwSWcxDdXhNd4l8GbiqxHvTL/L38gA0+JAuCdydg/F/H9g+7+AaTdLH
+PQi7Wyc19ItQjMuz6btQXSAieTibj74psM4zCJ6PGOoREDHufwf+XuL9iXH/v+/uH0gA1G+Y5s3e
+/GdJXPQLhLP9HTJzX7but3r2UG+Q/T2d5mAhSuH/gF8XmVDMzNYEfhlZzFPu/kiN9a0ALBNR1+Mp
+jWjBAmBgyoZ0CAFgZrNkxj91SNSHga3cfUQHMvidCacm2gz+WqSJTy6EaJxxwIHufmnB80EXwrp9
+rOfq1Dq+GxvJsDT3v5ktACwcUUTSyIUtLwCyc6l3ErfpYnLcAOzm7mM7QB/OTYhF/mNC2M0ZNd8K
+URm+ArZ190dLqPtg4EeRZbzs7nfXOBfNT3zwnxub9O1fHoAG1OkNpN+VfSFwUJ65tCvQdz0Ix5V2
+zwx/Z4QQVeM1oH+Wn6HoOWIh4KQERdXz9n8UcUuMt7v7sCYVAINTnf/vKB6Ay4CfJi7zd+5+Uit2
+lpkZIULV7oQIW70QQlSR74FzgdPdfWQJc0XX7OWqZ2RR/wJurrHOuYA9I+u7quT7FiMAkicualkB
+YGanA79IWOREwhrbRS3YV0tkRn9X0u+TEEKkYwJwBfDbOuLl58HZwMoJyjm4Dk/qYUC3iLo+IwR/
+K2ueXZq4UM8DU7epJQVAFjTk6IRFjgV2dfcbW6iPOgM7AocAq2heFaLy3AEc4+7/Knnu2IY0idOu
+d/eHaqxzFmC/yPqucfcJJXbdzhG/dQmA2h6UnQmusVQMJ0TTerhF+qdr9rZ/DOFsvhCi2jwDHOnu
+j1dg/lgo80CkmFcPq+P7hxC33DCecESyrH4zgoe1UV7LI41zSwkAM9sI+Bvpgql8STjj/0IL9E13
+QkzwI4kP1ymEyBcHngfOdPebKvTycANpTgH9ptYNbVnG1liPwzUln/1fD5g/4vcD82hUywiALDjE
+LaQLQjMU6FdQ/uw8+6U3IT/3r4nL0iWEyJdxwCPA7YTd6kMqNI8YYQNdinX/V4AL6nz7nzmivonA
+aSV3YWziogF5NKolBEBm5G4EZkhU5PfAT5vZ+GexuQ/JlPNMmluFqCTDCYnJbgPuqXASsfOBHRKU
+48B+ta7Fm9mCwLGRdd7s7oNLnIu7A9tGFDECeCiPtrWKB+By0q1njyfE0X6qSQ1/Z0KkrJPJN8e4
+EKJ+hgCDgTczw/9wgdn6Gp1TjiPNpj+Ay9396Tq+/yfiI42eUnIXbkXckeqb6kiR3LEEgJkdEKmu
+JlWne9YalaqCfbEGISznck16O0dnb0RT+oyk9bPlPSkb+T9MoMQNXA3MIaPaPbMjgGHAB8BbzRY2
+3Mz2TGhA3yIsRdZa95bAFpF13uXur5TcjbtF/j632AVNLQDMbEXgnIRFHunuVzVhP8xKyMb1S6qd
+TW488F72BjQo+3dwNjF8U2QCE9FUjHf3Q9UNhc8r/YFLEor77WoVQFkk0j8lqPfUkvtwLmCjiCL+
+TdgXIgEwScf2JuxITZVD/kx3P6fJ+sAIkbFOJz4VZ2q+zh7cZ9sZ+nfdfZymViEqP7f8DLiGdCHA
+D3b3V+v4/gnAApF1DqhzuSEPdorsw6vdPTevZzN7AC4j3br/X9396CYboMsTchKsUZEmDQMeIxxX
+GQC8kueDK4TIbW75VTa3dEpU5DXuflkd9S8JHJGg3lMq0J2xu/+vzrNxXZr0Ad0P2D5RcXcSzsc3
+y7V3JxxpOZByE/SMBh5vZ/CfLznKlhAifn45Afh9wiIHA/vW+Zs/E3+c+0l3H1ByXy4DLB9RxDN5
+n17o0oQP6ArAeYmKewLYoVkMl5n1JRx3XLakJnhm9K8Cbiw5q5YQIt3cYoSjfgclLHYUdaz7Z+34
+JdAvst4Jia+jrLf/3PejdWmyh7QX6db9XwO2cPdRTXLtOxM25PQsofp3sofx6pKjaQkh0s8t3Qnh
+fXdMXPS+7v5aHe1YivoCBE2JC939pZL7dDpgl4gixgLXSQD8kMuARROU8zWweYWDbrR/kLoRdsMW
+vUwxFLgeuKoCG2mEEPnML0tmL1XLJC76+HpOVGW7/m8g/sz/Z4QNhFV4+4/J/HeXu38jAfDfB2Rf
+0kWi+rm7f9QE17w4weX/owKrfZuwx+AfVQ9QIoSIml9+TlhvnyFx0Re4e73H7/4PWDpB3YeXvTSZ
+BWOLjV5YyHH0Lk3yoC5LunX/c5oh0I+Z7URw+fcqqMrXCGdmb6gjP7cQovkM/wyEXf6751D8DcCh
+dbZnN2CPBHUPcPd/VKCLdyTuhNpXwD0SAPxnc8olQLcExT2dQJnlfb3dgD8CvyqoymcJx2XuLPvY
+XrYW2TsTPT2zf9v//Zq7P6spXIiGx9jywLXAEjkUPwDYrZ4XCDNbghC9NJaxwAEVsVfHRRZzbVHx
+UprBA/BL0px1/wbYscrR5rKIfncDqxVQ3aPAKe7+YMHXOBOwGGEvx6T/zjaNn5+UCRYhRH3jrhch
+P8hB5HN8+CVga3cfW6fgT5XE7Rx3H1SBrt4aWCqyjMKi0Xap+EPbFuI2Bb9w939X+FrnB+7PSZm3
+53XgIHd/pIRrvBfYRNOxEIWOux2Ac4nblDY13gI2bWDt/QLSbD78EPhDRbo7dgPiy+7+fFGN7VTx
+Z/c00oS4Pdfd76zwAF0GeCpn4z8COBJYoQzjn/GOpmMhCptXFjezBwnHyfIy/s8Da7v753W27WhC
+GPMUHJxXtrw6r2kzYIXIYgrNXdCpwg/v6sBeCYp6Bjimwte5NiG4zjw5VnMTsKS7n516CSRz49XK
+Swgh8p5T5jazcwgbe3+cY1UPAv3c/cs627cHIX9JCi5x9zta5O1/EHBzkQ3uUtEHuDNhl2psZruh
+hEh/4yp6nf0zdd4tpyreAQ509/tzMPrbEvZndAXWkgAQovT5ZH7gqOzNulvO1V0H7F7v3GpmWwCX
+JmrDq9R54iDHvt+A+L1qpxV9AquqewD2J96VArCHu39Y0cG6F3Ax+WzIGU1YPjkj5Vl+M1s1M/o7
+EXbrA7iZzevuQ2oo4nXCbt2umq6FSDYuFyGcbtqd+Bj6tfAn4NB6Tw2Z2VqE4GIp7M4IYHt3H12R
+23B85O8/AAo/wtilgg/zXKRJRvFHd7+9ogM2dcKN9ryWDYxBido6C/CLzPBPLlCHAT8jxBGfKu4+
+zszeSCTuhOjIRr8zwb2/B8EbV1RisOMbCPKDmS1NSLzWPVE79ss7UU4d17YGsEFkMWeUcUKtih6A
+s4EZI8t4m4qu+5vZ6UBeqYcvJ+zwH5WgnbMChxGODU0rGNG2tQiAjBclAIRoeFwum73p7wLMXWDV
+w4F93P26BtrcdsJp5kRtucLd/16h2xK79v8J8NcyGt6lYg/3+sQlUGjjwCqGsTWzX+dk/EcSEm/8
+PUEbZwMOJ6QbrjXx0JpmNre7f1rDd7UPQIj6xuRCwFaZ4V++hCa8TPAqvt1A2+fIjH+qTc5vUI1M
+f23XtxGwWexLb1n2qkuFOnI6wsa/WG509wcqOIh3Ac7JoejXCSk3B0W2b3bgCEI0rXoDc3QCtiHE
+Fa/FAyCEmPJYnIeQEneD7N8FS2zOxcCvG1lrN7OFM+O/aKK2fJ8Jke8rcp+mJ+QwiOErQqTbUqiS
+B+AwYMnIMkYAv67ggN6I4OKxxEVfkXk7RkW2b03CkZ6YTFzb1igAXgUmUv0YFEIUMTfMBfQlxABZ
+ITP6i1WgacOAvd39hgavazngPmCuhG060N3frNDtOzLBvTqvTEHTpSKDoA9wYoKifuvuH1dsgK9C
+ONuZcnfuGMJ6XKqQkc8BH0c+zOuY2Rzu/sXUvuTuI81scAKxV+VJfRFglQZ//k6RkcBE8nvfibCH
+qS2nxaSfPu0Mfl/i9zvlwYvZm/a7DfbBesDtia/tUnf/a4Xu80LEx/z/rsaXppb3ABxJfDzo1wjH
+U6o0GSxOiO3fM2Gx3wH93f3RVAVmu/OPBm6JKKYzIQ52Le6sl1pZAAA/ofEEJ5cQoquJ5mRdYGCT
+tn00IUDPafXE9J9kztuGcJxt+oTtuo1wNLxK/In4Ew3/5+7flXkRpbths7XnfWJtGLB/lRL9mNnc
+hPWv2RMW+ymwbkrj304E3Ao8FlnMtnW8YQghqsN9wDLuflKE8d+HkNwnpfF/DNjJ3SdUaG7fEvhp
+ZDEjCVlfS6UKHoBfE7f2DHCluz9RoQdkxmxALZiw2LeAjd39gxybfjgh216jexXWN7NZ3f3rGjwA
+U+JzQubGEdlnZLu/n9E83bQ4IWlLI4xR9+XGEEJQn6gQtGZ2IiHbYEpeBbasULAfzKwHaTzNl7j7
+Vx1aAGSpYWNzOA8lhL+sygPSCbgB+FHCYp8DNsv7gXH3583sHzR+FLML4bjS5TUIgKcI8Rp+8HH3
+EZqTW9D6h2NOC6onKsN4QuyO38WMOTPrnY33bRO3731gk7Jd5JPheGCByDK+IURqLZ2yPQAH89+Q
+so1ybL3JKHLmOGCjhOXdD/zM3Uc2MDhnB9Z39xvrbP/PaDyW+LbTEgDuPpTa8wcIIdJyL3CUu78e
++bKzYvays0ji9n1J8HZ+WqVOM7O+hKPSsRxbhbd/KHEPgJn1BA6JLOZZ4LIKPSDrA79LWOQ1wBYN
+Gv9lCC7za7IY/rW+qf0bOC+izRua2cwIIaqEEzb5ruTumyUw/gcQvHipjf8IYNNGgg4VwJ+Jz2NS
+KZtV5ibA/YBZIh/o/YvOnjSVATEHYfdrqpjct9BAtq2sLZtng3MhwvHD6zJXXa2cBnzR4MN9MFqz
+FaIqTMjmpWXd/WfuHrUB18x6m9kNhAA40ydu61hga3d/oWqdaGY7ABtGFjORkMPAq3JdnUrqzG6E
+DWcx3F6VByVb97+GdLG5HwV2bkTcmNnhwB38MH7/QtSRgtPdhwO/rfHrnxMiHC7j7qu5+8VVidQl
+RAdmHGEpbgl338Xd30gwz61AOMGzXQ7tHUNI3f5QBY3/zMC5CYq6MFaAtYoHYC9gzsgyTqlQP55A
+yMyVglcJ5/zH1PmQdjWzKwjJlCZ3X3fIUhDXymXA1KJuPQT0B+Z19yNSTDBCiGgGETaqLezue7n7
+OwkMYGczOwx4mvQufwixTTZ299sq2qd/IwRwiuFz4pMGJafwTYBZzP/YXfv3VyVampn1q+NteVp8
+QAM7X7PNfjcD60zjq38ys6dqCafp7hPM7EhCIKMf9D1wsrs/pblWiErwFXAdcJW7P5d4fluLkKPl
+Rzm1/bNsznulih2bCZ8tExR1RAVPNJTiAdgdmK8V3v7NbE7C+lqnRIO47p2vWZ7tZ2ow/hAiV11v
+ZjVFsHL3e7I3fQg7h1d3901k/IUonTGZ6O8P9HH3g1IafzObw8z+Bjyeo/F/B1irwsZ/NUJkxFge
+rVj64nI8AGbWGTgmspjH3P3xCjwclhn/FMkuRhLO+b9VZxuWAR4BZq3jZ8sQdvnvW+P3DwR6p36z
+EELUhROWBwcCAzKjMiyHea1TNjecAsyU4/W8SNjt/0UVOztb97+e+Bwu46heGONyBACwI/GpIauy
+9r8nIXNXLBMI5/yfq/MBXYyQwW/WBur8lZk95O431eAFGKy5V4hSGNTO4D+S99nx7I33QmDFnK/r
+YcJu/+EV7vu/ER/wB0K2vzerepFFC4DYVL3PufsDFVCHs5LGNQTwG3e/v8765ye45mO8D5eZ2fM5
+hxYWQkybTzNjP7jd5+WiAuFkAW6OB3YlfcrySbkR2LXRfAMF9Ueqdf+PSB8euTkFgJktBazUIm//
+pzf45j0pD1BnSMgsydDDwPyRdc8EXGtm61QpiZIQTc4EQqjX4cCw7DN8kn+/Bd5tM/ZlvQmb2bKZ
+4d+OYvaDnQscWZXYLVPxgqR6uTu0kSBureoB2D3y968RzreX/YCsTnD/x/JJpoS9jrpnI7j9F010
+OasDvweO1bwtRDzZ/qRZq9xGM1s5M/z9C3jjJxM8e1T4mF9bv6Ra9we4191vqfrz2qmgju1E4wlm
+2ji17AhK2SbGCxMMmgmEQD9f1lH3jIQjeEsnvqxfmFkvTd1CtDZmtpaZ3UtILrZVQcb/WWCFqhv/
+jL+RZt3/K2DvZngmijoG2A+YN+L3bxOSTpTN/sAKCcr5nbs/WsfAnQG4h/Sbc14lHO0bjhCiFY1+
+dzPbycwGAk8AmxRY/R+BtZthn1HCdX8HdnP3j5vh+ShqCWC3yN+fVva6UXbm//cJinoQOLWOeo3g
+lloz8SXdTliCUPpdIVrL6BuwLmHZdVviM67Wy1CCy//2JumvdUm37n+6u9/XLM9KlwI6twchvWyj
+fEOIs182ZwMzRpbxaWZ06xEzRwKbJ76W04Hjq7wZRwhR91y7WGb0dwUWLKkZzxBi+n/YJH22LGFv
+WYp1/yeAE5vpmSnCA7A10DPi99eXfWTEzNbLBlUse9UT+MLM1iDtyYcxwN7ufrWmSyFawugvCmxM
+2GO1RolNcYLL/+hGMpiW1HcLAvcleLGDsO6/o7tPkAD4IbG7/6tgrM5MUMatWWjdWh/OWQjxvVPd
+oy+Ardz9aU2bQjStwZ+PEICsX/bvfBVo1quE1OxPNlE/zkbYVN0nQXFOSN3+cbM9T11y7uS5icuh
+/HbZBsvMfgKsGlnMSOCQOn/zV+LP+rfxNbCBMvYJ0XQGf852xr4f6Y4Ap2AYIRHaBc305ttuU/Xi
+qV4Q3f3eZny+8vYA7AJ0bvK3/+MTlHGSu39UxwP6a9LsSG0bpJvI+AtRWYPUiXD8rC+wRPZv299z
+V7TZ1wKHFxWtMGFfT0dIorRKoiKfpIJpfqsiAGJ2/zvw95IflrWB9SKLeYOwNlZrnasCZyS6hO+B
+n1YldXKC+9GVcjJYVm1cNev969ZBLrU70GsanxmBRTJDvxjQLH3zL+AAdx/YhM+fEc76b5yoyK8J
+6/5NG0m1S46dvRxxaSSfcPf3W+Dtf/9aN8WY2UyEdf8UO1LHEhJuPN4EA7NrNgm2f/tZlBCuuGe7
+SVOGtbmN/yj1RNMyknAM+txm2eQ3Gc4Bdk5UVtu6/5Bmvql5TqixZ/9Ldf+b2UrEB8240t0fq+P7
+/wcslKD54zNl+kBVHzwzmx3YghCO9CfZW5MQolpMIKQ9P76eZcwKzjdHEZ+Mrj1n1bOpu0MJgMzV
+EqO0RlN+5L/Yt/+hhDP8tfbZOsSHS25Tpnu4+60VHISLZQa/PyGwUSeEEFVkLHAlIbDNe818IWb2
+C9ItqwI8RRrvcMt6AJYlbvPKne7+XYkPzNKEWNkxnF5rrP9sE9D5iZp/qrv/vUKDb0VCNLL+wFKa
+V4WoNKOAvxB2tg9p9osxs22AyxIW+S6wTatkUM1LAGwQ+furSu6X44hLlPENIWlQrexFmhwDjxGO
+5VRh4C1FiDi4heZUISrPiGzOOtfdP2+FCzKzfbJr6pyoyM+BjVulf6oqAL4kRGcq66FZGNghspg/
+1RpjP9v4lyLa35fATmWfxzWzPsBJwB4JB54QIh++Bf4EnO/u37TKRZnZicDJCYtsO079bivd/C45
+dHxnQiKKRrm2ZPfKLyMN1/BsQNXKScBskW1uy0D1SYkDrjdwNGGjjTb0CVFtniJ4Wq9192EtZPg7
+ARcQMremYgzQ391fbrWHIA8PwErExVa+tcSHx4iP+X+huw+tsb6lEj2op7v7/SX1WVdgP0IwjNkQ
+QlSV9winq65utTfZbC6aPru+7RIWOxHYxd0facUHIg8BEOP+Hw2UGfp3XUJErkYZBZxbx/fPT3AP
+SstAZWarE44ILYQQoop8SzhRdVUzxepvYC7qDdxGCJeckv3d/eZW7beqCYAn3X1Mif0Rm7joL7Vm
++zOzrYAfR9Y3lJLW/c1sd+BSYHrNsUJUinGEfVRXEU5UjWnli83yJdxLmo3U7fmtu1/Syn3XJfGN
+6AqsHVHEgBIfou6E42qNMhY4q47v/z7RAzqk4H7qRDhTe4TmWSEqwUTgpWz+HAA87u4jO8KFm9ki
+wAPAwomLvtDdT271/kvtAViDuA1gA0rsi/5A74jf/6PWSFlm9mNgmcj2vgFcVPBg601IArKZ5lwh
+SuXNdgb/kVr3HbWY8V8xe/OfI3HRNwIHdYQ+TC0AYtz/w4DnSuyLWPf/FXV899AE7T2kyNMSZrYo
+cAewpOZeIQplGDAYeBkYCAxopbPoDc5HmxD2NvRKXPQAYFd3nygBUKwAeKysM+zZGtJGEUW8T9iM
+V0tdiyd4g77V3R8usH82zFTxzJqLhciFCcAHmaFv/xnk7p+pe/4zF3UmHJ2ODdY2OV4EtnL3sR2l
+P7skvDEzAKtFKq+y2Jm4s/9Xu7vX+N2DIx/c0cDhBQ64HQhpmauQiW+4Kyj8AAAgAElEQVQcYb2z
+6nRGmQtT0ywb2ZyQhnt49hk2jb8/zwz9Ox3J8DQ4F/UhLEGum0PxzwKbufvwjtSnKSeptYlLY1um
+ACgkc2EW9e8XkXWdXVSaZDNbmZA/uyhjNorg4nwH+BT4JPt8CnzSLOucZrYvBe/PaHXj7+7d1A0d
+2vhvnM2zs+dQ/P3AzzrKxsm8BECM+/8r4NWSHqz5iDs+8rS7v1Pjd/cCZoio62PgtIL6ZW7gdiDv
+ifdL4E7C/oIH3f17TXdCiGwe6kw4MXUM6V3+ANcQsqeO64j9m1IArB/x24F1uNBTExs44qo6HuQD
+I+s6twgDaWbdCEE1+uRUxXeEDF23ZQJqIkII8cN5aF6Cy3/tnKr4I3BYibanpQRATKrXMt3/MZ6L
+scD1NX53a+KiDI4ALi+oT/4CrJpDuWMJrvHfu/vXmuKEEFMw/ptmL1d5hRc/1t1P7+j93CXRzZoH
+6NkBBcCddaxL7xPZzr+6+3cFDLyjgV0SF+uZUDre3d/T9DZV5tF1iQ5s+LsQsqMeST4u/wnAPu5+
+hXobOiUqZ4mI337q7m+V9LAtCswXUcR1NdbTm7glkonUl2Gw0f74KXBq4mIfB1Z1951k/Gvip2Z2
+XotN6vMBD+rWimk8JwsAjwJH5WT8RwHbyPgn9gAAfSN++0aTvv1PrMNzsSlxJyTuqmOjYaODb3FC
+Yp9OCYs9DziyrPgOTcyhITElJ1VojLd/VjpTewCW2Qlx6ZUwSkzpeZqOcLT5RKBHTtV8C2zh7k+o
+x6slAAY1qQB42d2/qfG7W0a2848F9MVZpIuqNRbYT0o7TgSQJmJkHqxCuVk7ResY/37An8k3wugn
+wCbu/pp6vHoCYHCJ1x9zAmBAjQ94l8wD0CivuPvAnAfh2glEShtfEtxsUtpCiCnNOXMBZ5N+v9Gk
+vAVs5O4fqtf/lyrsARhc0gO4DHFJJGo1ymsTF0L3woLe/lPwKrCKjL8QYgrzbmczO4jg+c3b+N8H
+rCXjn6MHIEujO39EEWUtAcS8/Y8HHqvxuzFv1k4IxpPngNwGWD1BUe8C/epYFmllRqsL1J/if+aa
+1QjHgFfIuarxhP0EZ3TkM/5FeQAWo/Edm98DQ0q69vUjfvucu48oQAA8m2fWr2x5IkVkwWHAljL+
+/+FqQoQxEc/3wDYVMWBddTsa6rdZzOxSwr6RvI3/EGB9dz9dxr8YARCz/v9WiTdp2Yjf1rr+vxSw
+SEQ9d+bcB3sBi0eWMRHY2d3f1HAKZKcefi4RkMT4b+HuA8puiJnNCDyWxckQtfVZJzP7JWGZd2/y
+OdrXnruB5d39SfV+baTYBBiz/j+opAezK7Bw3gKA+I11d+TYBzMAv01Q1DHufreG0v+KADP7efaf
+u6hHmt7430/Idrqambm7n6lbNMX+6pI988dGviDWyjhCeuBz9NZfvABoxhMAi9J4+t+xwFM1fnet
+iDZ+mPOxlcOBuSLLuMrdz9IwkgjoIMa/jTPMDImA/+mr6YE9gKOBBQuq9kNgR3f/p+6ABEARXot3
+3L3WTUkxywx35jhQOwH7RxbzaYIyJAJEsxn/9iLAJYDBzHoAvwKOIL8EYpPjdkImv6EaNs0pAMo6
+AZD7scVs8ohJ/pPn+v/qwJyRZfyuI+bPlgiQ8W/HmZkIOLuDGv7ehAynvya/pD2TYyxwtLv/UUOm
+RAGQ5YxvNHqcE4I0NJsAqFW0xLz9jwYeyfH6t4r8/b8oLjOhRICMfxWNfxtnZcsBHUYEmNmshCiV
+BwEzFlz9+8AO7v6chkz5HoB5I377cYlvkEUELvpRRB1vuPvYCguAYxTfXyJAxv8HIsDd/ZwWN/zz
+ZoZ/X2CGgqufCFxCSOP7nYZMNQRATOz4t0q87iL2LcR4AF7NcRAvRYjd0CiPu/sdGjoSATL+P+Ds
+TASc22JGvwchDsPuwIakTRZWK88Tcos8r+HSOgJgaEkP9NxA74p7AF7JsQu2jvz9URo2EgEy/pPl
+nEwENHU6ZwupKNfPjP62QM+SmvItcDxwsbtP1MzRWgJgeEnXHOP+/6KWHafZAIrxAOQpAGLc/4N0
+3Ca5CJgA9K9oM8dN4X8fD8S6YccAO7WQ8W/j3GxPQNOJADPrmxn9XYkL756Cq4Ej3P0LzRatKQBG
+lHTNRbj/F4zsm1dzGuDzAitFFHG7hkxaEUCIGNhs7X4emKkV7kFi49/G2WZ2fzNEx8w29O2QPYer
+VqBJbwD7u/tjmiHkAciDWQoQADFv/0NyjKnfn7hwnFr7Fy1DTsbfgb2rbPzNbA5gA2B7YHOgCjkO
+RgInA+e5+zg9nRIAeRHT5lrTSs4TUUee7v+YDIhfAHL/Cxn/qRv/vdz9iopd68yENf1+meFfumK3
+4xbgUHf/SE+mBEDexGxoGVbj92Lco6/neO0xiX/u1EYcIeNffeNvZr2AdTJj3w9YnnJ270+L94AD
+3f1ePZUdTwCUtQegiDbHCIAvcpoUjJADoVHk/hcy/hU0/mbWnZB3pO0Nf2XSRHnNiw+AM4C/uvsY
+PZXyADSLAKi1zTHRsfIKcjEf0D3i99qUI2T8SzT+Wfv7Zp8l2v29ONVYx58Wg4DTgH+4+3g9kRIA
+ZdCzgDbHeADyEgAxwX9Guvu3Gi5Cxj9f458l6lpwEgPf9vdcTdr9rwCnADdrGVECoI1mXAJoZgEQ
+szHxEw0VIeP/P8b/QOAfZtZtkv+vOyHYWK/sM6W/J/3vOQjLdNO3SNf/EzjF3e/SUygBUBUPQEcV
+ADHLEh9rqAgZ/x8WDfw5+4gfMhD4QxWCPAkJgEkpYgkgxtjm5WqPCX8sASBk/MW0uDt7439aXSEB
+IA9AtTwAEgBCxl+kZjRwK3Cmu7+s7pAAqJWy9gB01E2AMQJAewCEjL9ow4EngKuAG5Wet+MKgJjg
+EmXtBi2izZ0j6phQwevWkR0h4y/eJSTpudrd31N3SAAMp/HY+r2Ab0q45iLaXMV+GRbx23k0VISM
+f4fkW+AG4Cp3f1Ld0VrEhoeMWcfvVdI1jyigzTF19M7pumPcdBIAQsa/4zAeuIuQLGgud/+VjL88
+AKkFQM+SrrkI0VJFYSQPgGhlfifjH80LBBf/te7+hbpDAqAVPQASABIAovU4HvgRIRa+qI33gQHA
+w8BAd/9MXSIB0OoCoIglgCr2y6cSAKJVcffvzeynBNe1RMCU54CBmcEf4O4fqEskAOQBSN/mERXs
+l7di2mRmvdx9uIaMqLAIGCUR8AOGAo+0veW7+7/UJaIqAkB7ACbPrDld94fAWBrPGrYG8ICGjGgS
+EXAnsGEHu/xPCIl32t7yX1byHSEPQPFv5zH9snhOE+NEM3sXWLLBIvpLAIgmEgFbtKgI+B54GxhM
+SK87OPu8JQ+dkACoRps/iqhjiRyv/a0IAbAlcICGjJAIyL/5wJDJGPnBwEfu7rrDQgKg+DbPV+P3
+BkfU0TfHa388e5NvhHnNbEV3f1HDRkgEADBmCsZ7VDbPTOszbAr/24fu/r3uoGhlAVDWHoChBRjn
+GAGwoJlN7+5jcrj224CzI37fH5AAEBIBgWPc/Y/qZdGsxEYCjDlbXpYH4O0CBMC7NB7TvzOwaE6T
+4bvA65ECQIimEwHAFsBDiYs+z8wOVQ+LjioAmnEJYFDEb/uY2TTb7e5jCUE28hYajXoBGmU5M1tW
+w0Y0qQjYUiJAiGoIgJlKuuYhwMgCjHPMMsAyFRUAAKdr2AiJAIkAIQEQIwAWLWkScOKC4tQqAGI8
+DevleP0vZCKoUTYzs34aOkIiQCJAdGwBEBNedn4z61bSdccY51qP6cV4ANY0s+lzvP7bI39/lpmZ
+ho9ochHwoESAkABonCGEwBSN1r14SdcdIwBq9QC8EVFHN0LkvbyIXQZYCdhRw0dIBEgEiA4qAAp0
+p6emiHP6z0eII4A83eyPAt9GlnGKmXXVEBJNLAJG5yQCzjGzpdTDotU9AEUZ0yp5ABY3s+lqmFzG
+EgLvNEpuyUzcfRzwt8hiFgJO0xASEgE/LBLY293fVO8KCYCps0RJ1/1WNlAboRuwao3ffTiijauZ
+WY8c++APwHeRZRxmZj/XMBItIgJic104sJe7X6FeFR1FABSxnp56wI8iZMfL++18QEQd05FjDHN3
+/5o0R/ouMbM1NJREC4iAmIRXMv5CHoBmEAAZMZv0ahUALxEXeni3nPvgfODjyDKmB24xs3k1nEQH
+FQEy/qLDCoCYTYC9zKxPSdf+aMRv16jlCGOWi3tgRD1bmlluAZMyT8iJCYqaC7jNzLprSIkOJgJk
+/EXHFQDuPiLyLbIsL0CMe356YM2C6tk+5364krj8AG2sBNxhZjNrWIkOIgJk/EWH9wBAcy4DvETc
+UbhalwFiI47lugyQeSmOTlTcj4FnzGwJDS3RIiLgfhl/IQGQnwBYoqQBPhF4JG8B4O6DgVcj6lnb
+zBbOuS/uieyL9iwG/NPMNtXwEi0gAraajAiQ8RcSAE3uAYA49/wqZtazxu9eFdnO3Qvoi8OAMYnK
+mvH/2zvz8Kuqqo9/FiAhkwqpKKlECmjllEiaAw5pyqOomEOBZeTwFE755hRmZSiWOeb7ZiI4K5qz
+KVbilAo4YcnohAOKUyoIDgjr/WNv3pfI4fe7Z597zrn3+3me+4A+3L33WWcP37v32msBt5nZTzXE
+RIOJAC3+QgJgBbJcBSwyYlYWAdAO2K6F//YqYEmGug7LO2+Cuz8OHJq4b/3GzK43sy9qqIkGEAF3
+aPEXEgBpdwDWNbNeBQ3sacCrGYrYv4X1vEI2X4AewPA62OMy4MzExe4DzDSzs82su4acqLAIGKTF
+X0gA/CcvAO9n+P6OBdogyzW9IWbWqYX/NusxwHEtCUGcgOOB2xOX2R44GnjGzE7QdUFRURHgsoKQ
+APjPgbGUbMcARQqALMcAneIv3JZwE7AgQ13rAkPrMMktBQ4EZuRQ/CqE/AGzzexYM/uShqAQQlR7
+BwDgviYUANBCBz13XwRcn7GuE8ysTd4Gcff5hNjob+VUxRcIRw1Pm9mTZjbKzAaYmWlICiFEfbBU
+u1pmNphseeY3cvcZhRjBbAa1X0dcCqzn7i+1oJ6BZDtyADjA3cfXyS47ARMIDo/14BWCo9VThOBS
+L8c/57r7Ag1XIYQopwBYFXgzw67CCHe/oCABcBIwKssvc3c/o4V1PQxskaGuWcDGMd1wPWzzI+CC
+EvTVBQSHzSUatqJAlgALgfmxTy7/mU9IMjYbmO3u78hcoikEQILF7QZ3H1KQAFgXmAPUugU93d2/
+3MK6su6UAIx091F1tM8BwFhAzntCtJxXl4mB+JkETKqXeBei3gJgNLWHlf0XsHp0QitCBEwEdshQ
+RH93f6QF9RjwBPDVDHW9RzgymVNH+3wNuBnoqWEjRM0sAv5O8D2aCDzm7trVEoWQ2qEsi0NdN2CT
+Am1xecbvf78l/yheJTotY10rA+fV0zju/ijQH5isYSNEzXQEdgFGA1OAN8zsRjM7UNdjRdV3ADoS
+PMfb11jET939zEIMYdYFmBcHaK3Kvpe7v96CutoQrtn1ydjswe5+S53t9DlgDHW4kihEk7GAcFPo
+MuAexR0QldoBiFfdJmUoorDrgNHLPMvZfEfgmBbWtZRwHz4r50XRVU87feDuwwhHPUs1hIRIRhfC
+TuJE4HkzO83MNpBZRCUEQCTLMcC2ZtauQHtkPQb4cbwN0RKuIDgeZmE94KyCBNNvCLEC3tQwEiI5
+6wAnEsJojzezjWUS0egCoDOwZYH2+CvhGKBWugJHtHAB/Qj4ZYI2Hxa99IsQAX8GvkQ4z3xPw0mI
+XObo/YCpZnaLmW0pk4gyC4DJhPPwWtmzKGNEb9wrMxZzVCvyA1wKPJig6X8saqvQ3d9x9xMJ/gxj
+0bGAEHlgwB7AZDP7i5ltK5OI0gmAeMf1/gxFDK1HuNtPYRwh53etdAcOb6GtHPgR2YPbdAGuzTtl
+8Gc8y0vuPhzYGLhNQ0uI3PgmcJ+ZXWVmPWQOUaYdAMh2DNCTbPfxsy5k04BbMxZzbEsXY3d/Avh9
+gqZvCpxTdIdy92nuvgcwkHDNSQiRDwcSfARGFPyjSUgAJBMA0MIEOzmSNcreWsAPWvHvf04234Nl
+HGZmw8rQsdz9XncfAAwCLkHOgkLkwSrA+cAUM9tC5hCtwfK4ahrV6GuE7fBaeBfo4e4LCzOM2V+B
+nTMUMQ/oGzPrtaS+75Dd/wBgMbCHu99Zqo5m1hbYBtgrfnpp+AmRlKWE3cTj3P0DmUMUsgMQ77ln
+yVjXGdi74rsAPYBTW2Gzq4B7ErR7JeB6MxtQpo7m7kvirsAx7v5FYDPCLYgnNAyFSDafHwlMUvwA
+UdgOQPzFN4BsQYH+6u67FPyr9QFg6wxFLAG2cPepLayvH/AotUcjXJ43gW2LSrHcSjuvQ8iNsAHh
+NkEfoDewGuFqZVsNVSFaxQLgMHe/WqYQdRcAcWKfRe3hbpcC67j7ywUuTLsDf85YzCRg65aG9TSz
+7xHOzFPwYqz7pUp30nCtsivhtoOcnUSh3ZGwQ9k59sdlf34e6Af0jX92KUl7LwKOcnfF6RB1FwAj
+acU2+MdwnLv/tuDF5zHCdnUWDnH3Ma2ocxwtTC7UAmYAO7j7q+ruQtRt3lg7CoGtCCHOtwaKuqb7
+T2Avd39Wb0bUUwD0Ap6NqrmmjuvuGxc8kIcAf8pYzJsEh8A3W1hnR8IVui8neoxngF00AQhR2DzS
+IYqAHYHdgM3r3IRXgd3c/XG9DVEXARA7/r3AdhmK2KylZ+g5tb8N8CSwYcaixrj7Ia2od0PgYaBT
+okeZB3wrxh0QQhQrCDYChgHfJcT9rwcLgL3d/S69AQH1OU/NmmCn0Hvt8UbDyARFDTezr7ei3hmE
+KIGp6AHca2bbqdsLUSzuPj2G0O4F7ERIDvZRztV2AW43s/31BkS9dgBWib8+az3/mgd8IcbpL1Kx
+307YusvCbOBr7v5uK+odCxyc8FHeBw5w95vV/YUo1a7AesBPgeHk6y/gwNHufp6srh2AvJXuO8At
+GX+5DimBrY6Ii2cW+gB/bOV3fkS23Aor0oEQJ+A4MzMNASFKsyvwvLuPiLsCvyFs2eeiNYBzzex4
+WV0CoB5clvH7J5VgcD4DnJ6gqAPN7NBW1Ps+IUPiPxM+TlvgDOBWM+uuYSBEqYTAq+5+PLB+grnz
+0xhtZt+XxZuX3I8AAMysHTAXWCNDMXu4e6FZ5szscwSHwPUzFvU+8PXWOOTFa0UPkD6E7ouEI4EH
+NRyEKOEkbbY98D9kd0T+OD4CBrv77bK0dgDyUrQfAVkjUo0s2lgxvvaIBEV1IKTv7dKKul8GdgVe
+T/xY6xCcA3UkIEQ5dwTuBTYBTgRSB/RpB1xXttDhooEEQCTrbYABZrZTCQbjnWSPCwA1+AO4+2xg
+d0KypNSTwBnAHWbWW8NCiNKJgMXuPhroD0xPXHxH4M9m1leWlgDIqwM/mqDjjiyJ3Y5OtAgfYGaH
+tdKOjwD7ELL+pWZXYJqZnRyPO4QQ5RIC06IIGJu46O7ABDPrJitLAOTFuRm/P9DMti7BIJwL/CJR
+cee0dvvN3f8KfJvstxI+jg7Ar4B/mtkuGiJClE4ELHL34cBQ0u4G9gLGycLNQ12cAP+vMrP2hNDA
+PTMUc4e771644YJj40PAFgmKexPYxt1ntrIN2xGuWK6S46NeBxwTRY8QokwTuNmXgTszzqkr8hN3
+P1vW1Q5AauX6IXBmxmJ2M7PNizZcdGzcD3gnQXHdgTvNrGcr23AfIczyKzk+6reBp83sghioRAhR
+nt2AaYQcA7MSFnuGmW0p62oHIA/F2hGYA6yeoZgb3H1IKQxotg9wfaLingS2dfe3W9mGXvFXQJ+c
+H/cjQsjS0e4+S8NHiNLsBHweuJ3gH5CCOYQ8LG/LutoBSKlYFwFZt5f2jsk0yqDAbwDOT1TcV4Bb
+Yuaw1rRhDrAN8EjOj9uOkKZ4upmNN7NNNYSEKMU89AYh0+DfEhXZC7hYltUOQB5qtSvwPLBqhmKu
+dPehJVHf7YEHga8lKvImYN/W5j8ws86EK4q71vHxHyFEK7vG3V/XkBKi0Llo5SgCUjlLH+Du42VZ
+CYDUHfVXwMkZilgCfKW1jnM5Pk9v4DHSOeT90d0Pq6EdbYCfR9vWc4dnMTAhioFbY9AkIUT956LV
+gPsIO4pZeQXo5+7zZVkJgJSdtHvcBciS736iu+9UooE3hDRBgpZxNnCs1/CSYtCkK4E1CzDFW4Tb
+CX+L7+hlDTUh6joXrU3YlUzhuHueux8lq0oApO6kZwLHZizmO+5+dYkG3vmkCRe8jCuBg919cQ1t
+6QFcBexQsFlmAncBE4G73f0tDT0hcp+L+gB/J5vDNYTd1v7u/risKgGQsoP2AJ4jW+7rUm1R5eAP
+AMHDf4i7L6yhPW2AUwhRFNuUwERLgaeA2YSrS7OX/d3d52lICpF0Pvom4Wgu69ifAmzl7ktlVQmA
+lB30AkLO+yyc6+5Hl2jQ9YwiYN2ExT4MDKrV0c7Mdiacz69V4v44n5CdcD4hF/qKnwnufr+GrRCt
+GvujSJNS/XB3v1AWlQBI2TnXi78IV8pQzBJgC3efWqJB14+w/dY9YbGzgV3jtb9a2tQVOBX4MdC2
+gv31l+7+Cw1bIVo17tsC9xCuCmfhZaC3HHwbh8K3hN39eUJwmSy0Bf67TOls4+2EQcDChMX2AR40
+s01qbNP86MzTH5is7i9E4xOvEx9ICDmehbWBg2VRCYDUnE6IMpeFrYDhJRt4k4F9SZu5by3gXjP7
+VoZ2PR7tdSjwLw0DIRpeBLwEHJ6gqONjHhQhAZCscz5F9uiAAKPj9cIyDbwJUTWnPGtZBbjdzEbF
+7b1a2uXufhHQl5ABzDUchGhoEfAn4I6MxfQCvitrSgCk5pcEB7AsdAdGl3DgXUn2644rYgTHnonx
+zm+tbXvD3X9AyGp4g4SAEA3NCLKnET8x3i4SEgDJFsmFQApP/uFmtlUJRcDZwBk5FL0dMNXMdsnY
+vsdigqWvAJeT/UhGCFG+eehZYFTGYvoSjjaFBEDSznkD2beojOAQ2LaEg+8EwnZ7alYHJpjZr7M+
+t7tPd/eDCA6HFwLy+BWisfgN4UZRFo6QGSUA8uAIsm9RbUqae6958EPgghzKNeBnwF1ZjgSWEwLP
+ufvhQG/gLEJ4XyFE9XcBPiTkC8nCNjH/iZAASNo5nyHcCsjKKWY2sITPt9TdR5AtEdKnsT3wTzM7
+NMW1SHd/2d2PJdw+2Be4mbS3GoQQ9ec6QvyVLAyVGSUA8uAM4OmMZbQFrjKzNUqqwn8NHEIIYpSa
+boTt+4fMbLNE7f3A3a93970I94GPIEQnFEJUbxdgKdkdpofJkhIAeXTOD0iTUGct4Iqyeqy6+xhg
+CNmPPD6JAcDDZna+ma2SsN1vuPvv3X1LYEOCU9FUdINAiCpxOdluXq1fRodrUf0dANz9TsI2VVa+
+CZxY4ue8Obbx7ZyqaBvF1CwzG5pD+2e6+0h33wxYA9gP+APZtxeFEPnOPYuBM7UL0LwUngvgUxsX
+kurMBDpnLGoJsKO731fiZ/0KIWtXz5yrugcY4e7T6vBM6wA7AjvF3YjeQJYoYsoFIETaMdoVmAes
+XGMR/wLWdHddG9YOQHKFOhdIMeG3Ba42s9VL/KxPAltHwZMnA4F/mNk1ZrZxzs/0ortf6u4HuXvf
+OMn0AwYDxwEXExImva6hKEQh88584MYMRXQDtpQltQOQl0JtBzwGfDVBcXcCu3mJH9rMViXECtir
+HuMfuA0YFfMWFP3c3YAu8dP5Y/7+kLtP1LAVIunY2yXOjbVycnRqFhIAuXTQrYD7SZPC9iR3P70C
+z3w0IWDHSnWq8m9RCNyjYSFEUwmANsAL1H78eLe77yhLVo9KxHN294fIHrhiGaea2TYVeOZzgG2B
+5+tU5c7A3Wb2gJntpqEhRHMQrwRmScm+tZl1kCW1A5CnSjVCmOBdExQ3F9jU3d+owHOvBlwC7Fnn
+qp8FLgMuj/HDhRCNuwvQH5iS5QeEu98lS2oHIC+V6oQrJy8nKK4ncKOZrVyB537L3QcTsgnWMwJf
+b4ID5jNmdr+ZHZIyloAQolQ8BszP8H0dAUgA5L4Yvg4cSJroedsA15QxadAnPPtZhMx/LxRQ/TbA
+H4F5ZjbezAZF50whRAPg7ksIfla1sr2sKAFQj456H3BKouL2jAtbVZ59ErAZML6gJnQgBPq5DZhr
+ZpeZ2cFmtp6GkhCV5+4M391I5qselfEB+LdGB6/VO4BdEhU52t1PrJgNdiZkFexTkiY9C0yMk8hE
+d5+n4SVEpeaUzYFHMxSxehX8qkTFBUDsrGsQ4s+vlajIY6LnfZVs0J4QUOckao/klRczoiCYAswC
+Zrn72xpyQpT6h9XbhJgbtfANd39QlpQAqFeH3R64izTxARwY6u5XVdAOXwTOBwaVvKmvLhMDhIiH
+y/7+XDyDFEIUO5dMpvbIfge7+yWyogRAPTvsSODURMUtBvaIiYiqaIvBwHnAuhVr+kfAO8CCz/gs
+RBkHRbG8BzwBPOruCxpQAFwKHFTj109395PURSQA6tlh2xDCWO6cqMiFhMRBUypqj47AyYRrgyup
+iwuRC0uB2cCFwLle9Yn0/+ePE4HTavz6De4+RF2jOrSp+gPEKFbfBV5JVGQn4HYz61tReyyKDo39
+gIuAD9XNhchl7uwHnA1MNLNeDfJcWZKRra9uIQFQxKL3GiE+QKrFrjvwl5iOuKo2edbdDwW+BJwL
+LFJ3FyIXBhIybG7RAM8yK8N3u6krVAtrkJ2r8DBmBwBXAZaoyKeAXdx9TgPYZnXgGODHQFd1fSFy
++fW8mbu/X+F5ojPB36YW3nH3VdUNtANQ1K/ea4CjExa5AfCgmW3cALZ5PTrorEfwEXhT3V+IpPQD
+Tq/4M2RxtO2iLqAdgDKo2NOAlIF93iHcDri/gWzUCTgcOJLq3VlT+8MAAAnPSURBVBoQorRaG+hd
+5V1DM5ufYTHv5O46btQOQKG/dk8CxiYschWCT8DgBrLRQnf/HdAL2AEYR+1bf0KIuH4CAyr+DO9m
++K6OFyUASsGhwK0Jy+sAXG9mP2wwseTufo+7/wBYE/gOMIE0CZeEaEb6N7EA0DGABEApFrYlwP7A
+AwmLbQtcZGYnNajN3nP3q919N+ALhFgCT2iYCNEqqn4bIMtOoASABEB5FjRgD2Ba4qJHmdm5ZmYN
+bLt57n6Wu28KbEJwbnqEEABFCPHJ9Kh4+xdn+G57vX4JgDItZG8BuwIvJC76SOAqM1upCWz4D3c/
+yd37E2Ik7A38npDwRwghhARAaRewuVEEpL76dgDw53h3liax5dvufpO7H+HuGwFrA8MIToQvaEgJ
+IUQ1aMhrgJ/4sGYDCNkDOyUueirwbXd/uuk7lNn6hGxifZf79AE6ariJJmGWu/er8BieRO03GbZy
+90nqAtWgXTM9rLtPNrN9gZuAzyUselPgMTM7xN3HN3OHiiLo6RUmFCM4Ffb9mM8XSJPOWYjSDAOZ
+QEgAlHOBmmBm3wJuJu2d1S7ANWY2EDimyuFAc7C5Ay/Gz98+5hfHytF+XYDOK/y5/N870STHVqJw
+ugGH1PojWuYTEgDlXZDuMbPtgTtI77F7OLCVmX3b3Z9SF2vR+3iPkGf9NVlDlAEz65dBAAhRCZr2
+15S7TwW+wQrb1YnYBHjUzA5UFxNCCCEBUD4R8GwUAY/lUHwXwjXBC82sg7qaEEIICYByiYDXCPm8
+78qpikOByWbWV91NCCGEBEC5RMACYHcgLw/+jYFHzOy7srYQQggJgHKJgA8JiXDOz6mKzsAVZnap
+mX1eFhdCCCEBUB4RsNTdjwRG5ljNQcAsMzu0kXMJCCGEkACoohAYRbgClFdK3G7AhcBDZra5LC6E
+EEICoDwiYAwwBFiUYzUDgClmdr6ZrSKrCyGEkAAohwi4GegPTM+xmrbACMKxgJwEhRBCSACURARM
+jyLgkpyrWpPgJHi3mW0oywshhJAAKF4ELHL3g4HvAQtzrm4g8ISZjTYzZdATAJjZDjomEkJIABQn
+BC6LuwHTcq5qJeB4YIaZDTOzdrJ+Uy/+ewITgDslAoQQEgDFiYAZhHz3Y+tQ3brAZcDseG2wvd5A
+0y3+g4E/Ae0JTqMSAUIICYACRcAidx9OuNO/sA5VfpFwbfBZMztKRwNNs/jvBVxH2BFahkSAEEIC
+oARC4HJgC+DJOlXZEzgHmGNmJ5hZV72Fhl78r11h8ZcIEEJIAJRIBMwkHAlcXMdqVwdOB543s1+Z
+WTe9iYZa/Pf+lMVfIkAIIQFQIhHwnrv/EBgGLKhj1asCJ0ch8Fsz66G30RCL//jPWPwlAoQQEgAl
+EwJXAH2Ba+pcdWfgv4DnzOwPZjZAb6OSi/8+rVj8JQKEENnmHHeXFfKZzHcCLoiCoAhmA5cDV7j7
+HL2R0veXIVE41nrlczKwq7u/I2t+oo3bAqOBDVooqneqsapZ7t4v52c5I8e5ZTtgtRq/ex/wVgv/
+7YvAsTETq5AAaLgJp338Zf4zoCjPfQfuJ1wn/JMWiIZc/CUCPtvGbeIYqEe47XoIgEmE3Z+qcwuw
+r7svVi+tPzoCyHPldf/Q3U8DNoodvZC5Lyr6McA8M7vGzAYpuFBpFqZ9Ey3+oOOAT1v8L63T4i9a
+x57AdWa2kkwhAdCoQuB5dx8cO/ucApvSAdgfuA2Ya2bnKB1x4XRJPA4lAv5z8b8EGCprlJbBEgES
+AM0gBG6NuwGjgKLPvdYAjgIeNbOZMSXx3ma2mt5UXfvEOGA4sFQiILfFf5h6WiVEwLUSAXUeI/IB
+KGxy6kNwEty5ZE1bCkwF7gImAve7+0K9sdz7w/cI4aVTivKm9QmIi/84QrTOeiMfgNq5CdhPPgES
+AM0yUe0PnAb0LmkTFwNTlhMEk9z9A725XPrCQXHRkgio7uIvAZCdG4H9JQIkAJplwmoHHAicCGxY
+8ua+BzwQxcDDwExgrqsjpeoLwwjb1hIBtS/+Ywmpu4tCAiA7N0QR8JFmBQmAZvrlsg/h2uCmFWr6
+QkLcgZnArPiZCcx290V6sxIBdRw/FwPfL7gpEgASARIAItMAHwSMBL5e4cdw4KWPEQYvE0ImLwDe
+1QD/2Pc/NIqAthIBlVr8JQDScj1wgOYICYBmXQh2jEJghwZ+zPeXFwTL/X3F/14YRUWzsCewVeIy
+G04ExMV/DHBwSZokASARIAEgkg74rQlHA7vLGkIi4N/Gxi+AU0rUJAmA9Jzr7kdr6KZFcQAqgrs/
+6O6DgM2jIpZyE7XSaHECeumVNjx6xxIAwt0fd/d9CQGFfks4Txei2UWAEEICoGmEwEx3Pw5YB9gV
+uBKQx72QCBBCtAglhKm+EFgK/AX4i5l1AYYQAqAMJCQCEqIlIqDZswj+AbgzUVkL6tDe44BuFbHt
+NsCxGmoSACJfMbCAcHXsEjNbl5AA5SDyyxsuJAIagXPc/ZiKjfX7KtTcm8zsXcrlqCnQEUAji4EX
+3P206I08gJB34E1ZRnyGCGi244CLq7b4V3Q++gXwO1lCAkDUf/BNcfcRwNrA3oTc6C/KMmIFOgHN
+lo3t73rtsnWzoiOA5hICHxKybd0EYGbrEwIM7Rj/XFNWalqeBHZ09zdkCiEkAETjC4KngaeBi6Ig
+2Gg5MTCQ6jgZiTSL/+syhRASAKI5BcF0YDrwezMzYJPlBMF2QFdZSYu/EEICQDS2GHBgavycZWZt
+gS3ipy/QL/65DrpuqMVfCCEBIBpWECwhxJCfvPz/N7OOwAYriIJln86ynBZ/IYQEgGhMYbAIeCJ+
+WEEc9FxBEKwPrAZ0WeHTXpasK9O0+AshJABEnuJgLjAXmPhp/87M2sfdgi6f8elMc11d3QHYUou/
+EEICQDSqUPgQ+Ff8iCCKBgM/yWnxf00WFkIoEJAQ5Vz8ryNtUB4t/kIICQAhSrz476XFXwghASBE
+cy3+ewPXJl78p2vxF0JIAAhR3sV/H2B8Dov/Dlr8hRASAEKUc/EfosVfCCEBIERzLf77AteQ9kaO
+Fn8hhASAECWnC9A28eKvM38hhASAEGXG3ccBPwQ84eL/qiwrhPgsFAhIiOJFwNiQfJEx1J5YaYYW
+/5oYZ2bjZAahHQAhRGEiIMNOwAzCmb8WfyGEBIAQTSICtPgLISQAhGgyEaDFXwghASBEk4kALf5C
+CAkAIZpMBMjhTwghASBEk4mAmXHxnycLCSEkAIRoDhEwk7Dtr8VfCJEZxQEQogIiwMwWAPdr8RdC
+SAAI0Vwi4DpZQQiREh0BCCGEEBIAQgghhJAAEEIIIYQEgBBCCCEkAIQQQghRUf4Xl/CIaCOxndwA
+AAAASUVORK5CYII=
+"
+       id="image61" />
+  </g>
+</svg>

data/meson.build

@@ -0,0 +1,52 @@
+subdir('icons')
+
+desktop_conf = configuration_data()
+desktop_conf.set('icon', base_id)
+desktop_file = configure_file(
+  input: '@0@.desktop.in'.format(base_id),
+  output: '@BASENAME@',
+  configuration: desktop_conf
+)
+
+if desktop_file_validate.found()
+  test(
+    'validate-desktop',
+    desktop_file_validate,
+    args: [
+      desktop_file
+    ],
+  )
+endif
+
+install_data(
+  desktop_file,
+  install_dir: datadir / 'applications'
+)
+
+# Appdata
+appdata_conf = configuration_data()
+appdata_conf.set('app-id', application_id)
+appdata_conf.set('gettext-package', gettext_package)
+appdata_conf.set('version', version)
+appdata_conf.set('current_date', current_date)
+appdata_file = i18n.merge_file (
+  input: configure_file(
+    input: '@0@.appdata.xml.in.in'.format(base_id),
+    output: '@BASENAME@',
+    configuration: appdata_conf
+  ),
+  output: '@0@.appdata.xml'.format(application_id),
+  po_dir: podir,
+  install: true,
+  install_dir: datadir / 'metainfo'
+)
+# Validate Appdata
+appstream_util = find_program('appstream-util', required: false)
+if appstream_util.found()
+  test(
+    'validate-appdata', appstream_util,
+    args: [
+      'validate-relax', '--nonet', appdata_file.full_path()
+    ]
+  )
+endif

data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2022 Stephane Cerveau 2022 <scerveau@collabora.com -->
+<component type="desktop-application">
+  <id>@app-id@</id>
+  <metadata_license>CC0</metadata_license>
+  <project_license>GPL-3.0+</project_license>
+  <name>GstPipelineStudio</name>
+  <summary>Draw your own GStreamer pipeline...</summary>
+  <description>
+    <p>GstPipelineStudio aims to provide a graphical user interface to the GStreamer framework. From a first step in the framework with a simple pipeline to a complex pipeline debugging, the tool provides a friendly interface to add elements to a pipeline and debug it.</p>
+  </description>
+  <screenshots>
+    <screenshot type="default">
+      <image>https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio/-/raw/main/data/screenshots/gps_screenshot.png</image>
+      <caption>Composition</caption>
+    </screenshot>
+  </screenshots>
+  <url type="homepage">https://dabrain34.pages.freedesktop.org/GstPipelineStudio</url>
+  <url type="bugtracker">https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio/issues</url>
+  <categories>
+    <category>Audio</category>
+    <category>Video</category>
+    <category>Development</category>
+  </categories>
+  <developer_name>Stéphane Cerveau</developer_name>
+  <update_contact>scerveau@collabora.com</update_contact>
+  <translation type="gettext">@gettext-package@</translation>
+  <launchable type="desktop-id">@app-id@.desktop</launchable>
+    <releases>
+    <release version="@version@" date="@current_date@">
+    <description>
+        <p>Welcome to GstPipelineStudio</p>
+        <ul>
+          <li>logs: receive multiple log sources such as GST logs and messages.</li>
+          <li>settings: add a log level selection</li>
+          <li>rename gst_pipeline_studio to gst-pipeline-studio</li>
+          <li>can open a pipeline from the command line</li>
+        </ul>
+      </description>
+    </release>
+  </releases>
+  <content_rating type="oars-1.1">
+    <content_attribute id="violence-cartoon">none</content_attribute>
+    <content_attribute id="violence-fantasy">none</content_attribute>
+    <content_attribute id="violence-realistic">none</content_attribute>
+    <content_attribute id="violence-bloodshed">none</content_attribute>
+    <content_attribute id="violence-sexual">none</content_attribute>
+    <content_attribute id="violence-desecration">none</content_attribute>
+    <content_attribute id="violence-slavery">none</content_attribute>
+    <content_attribute id="violence-worship">none</content_attribute>
+    <content_attribute id="drugs-alcohol">none</content_attribute>
+    <content_attribute id="drugs-narcotics">none</content_attribute>
+    <content_attribute id="drugs-tobacco">none</content_attribute>
+    <content_attribute id="sex-nudity">none</content_attribute>
+    <content_attribute id="sex-themes">none</content_attribute>
+    <content_attribute id="sex-homosexuality">none</content_attribute>
+    <content_attribute id="sex-prostitution">none</content_attribute>
+    <content_attribute id="sex-adultery">none</content_attribute>
+    <content_attribute id="sex-appearance">none</content_attribute>
+    <content_attribute id="language-profanity">none</content_attribute>
+    <content_attribute id="language-humor">none</content_attribute>
+    <content_attribute id="language-discrimination">none</content_attribute>
+    <content_attribute id="social-chat">none</content_attribute>
+    <content_attribute id="social-info">none</content_attribute>
+    <content_attribute id="social-audio">none</content_attribute>
+    <content_attribute id="social-location">none</content_attribute>
+    <content_attribute id="social-contacts">none</content_attribute>
+    <content_attribute id="money-purchasing">none</content_attribute>
+    <content_attribute id="money-gambling">none</content_attribute>
+  </content_rating>
+</component>

data/org.freedesktop.dabrain34.GstPipelineStudio.desktop.in

@@ -0,0 +1,9 @@
+[Desktop Entry]
+Name=GstPipelineStudio
+GenericName=GPS
+Comment=A GUI for GStreamer
+Type=Application
+Exec=gst-pipeline-studio
+Terminal=false
+Categories=AudioVideo;Audio;Video;Midi;Settings;GNOME;GTK;
+Icon=@icon@

graphs/compositor_tee.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Graph id="0">
+  <Node name="timeoverlay" id="9" type="Transform" pos_x="1023.9133" pos_y="320.11438">
+    <Port name="out" id="17" direction="Output" presence="Always">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV64, ARGB64, GBRA_12LE, GBRA_12BE, Y412_LE, Y412_BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, RGB10A2_LE, BGR10A2_LE, Y410, GBRA, ABGR, VUYA, BGRA, AYUV, ARGB, RGBA, A420, Y444_16LE, Y444_16BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, v210, UYVP, I420_10LE, I420_10BE, P010_10LE, NV12_10LE32, NV12_10LE40, P010_10BE, Y444, GBR, NV24, xBGR, BGRx, xRGB, RGBx, BGR, IYU2, v308, RGB, Y42B, NV61, NV16, VYUY, UYVY, YVYU, YUY2, I420, YV12, NV21, NV12, NV12_64Z32, NV12_4L4, NV12_32L32, Y41B, IYU1, YVU9, YUV9, RGB16, BGR16, RGB15, BGR15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE32, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw(ANY), format=(string){ AYUV64, ARGB64, GBRA_12LE, GBRA_12BE, Y412_LE, Y412_BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, RGB10A2_LE, BGR10A2_LE, Y410, GBRA, ABGR, VUYA, BGRA, AYUV, ARGB, RGBA, A420, Y444_16LE, Y444_16BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, v210, UYVP, I420_10LE, I420_10BE, P010_10LE, NV12_10LE32, NV12_10LE40, P010_10BE, Y444, GBR, NV24, xBGR, BGRx, xRGB, RGBx, BGR, IYU2, v308, RGB, Y42B, NV61, NV16, VYUY, UYVY, YVYU, YUY2, I420, YV12, NV21, NV12, NV12_64Z32, NV12_4L4, NV12_32L32, Y41B, IYU1, YVU9, YUV9, RGB16, BGR16, RGB15, BGR15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE32, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]" />
+    </Port>
+    <Port name="in" id="16" direction="Input" presence="Always">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV64, ARGB64, GBRA_12LE, GBRA_12BE, Y412_LE, Y412_BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, RGB10A2_LE, BGR10A2_LE, Y410, GBRA, ABGR, VUYA, BGRA, AYUV, ARGB, RGBA, A420, Y444_16LE, Y444_16BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, v210, UYVP, I420_10LE, I420_10BE, P010_10LE, NV12_10LE32, NV12_10LE40, P010_10BE, Y444, GBR, NV24, xBGR, BGRx, xRGB, RGBx, BGR, IYU2, v308, RGB, Y42B, NV61, NV16, VYUY, UYVY, YVYU, YUY2, I420, YV12, NV21, NV12, NV12_64Z32, NV12_4L4, NV12_32L32, Y41B, IYU1, YVU9, YUV9, RGB16, BGR16, RGB15, BGR15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE32, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw(ANY), format=(string){ AYUV64, ARGB64, GBRA_12LE, GBRA_12BE, Y412_LE, Y412_BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, RGB10A2_LE, BGR10A2_LE, Y410, GBRA, ABGR, VUYA, BGRA, AYUV, ARGB, RGBA, A420, Y444_16LE, Y444_16BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, v210, UYVP, I420_10LE, I420_10BE, P010_10LE, NV12_10LE32, NV12_10LE40, P010_10BE, Y444, GBR, NV24, xBGR, BGRx, xRGB, RGBx, BGR, IYU2, v308, RGB, Y42B, NV61, NV16, VYUY, UYVY, YVYU, YUY2, I420, YV12, NV21, NV12, NV12_64Z32, NV12_4L4, NV12_32L32, Y41B, IYU1, YVU9, YUV9, RGB16, BGR16, RGB15, BGR15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE32, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]" />
+    </Port>
+  </Node>
+  <Node name="queue" id="7" type="Transform" pos_x="914.41705" pos_y="30.562256">
+    <Port name="in" id="12" direction="Input" presence="Always" />
+    <Port name="out" id="13" direction="Output" presence="Always" />
+  </Node>
+  <Node name="autovideosink" id="6" type="Sink" pos_x="1285.3186" pos_y="319.52695">
+    <Port name="in" id="11" direction="Input" presence="Always" />
+  </Node>
+  <Node name="tee" id="5" type="Transform" pos_x="608.34827" pos_y="154.6546">
+    <Port name="in" id="7" direction="Input" presence="Sometimes" />
+    <Port name="out" id="10" direction="Output" presence="Sometimes" />
+    <Port name="in" id="9" direction="Input" presence="Sometimes" />
+    <Port name="out" id="8" direction="Output" presence="Sometimes" />
+  </Node>
+  <Node name="autovideosink" id="4" type="Sink" pos_x="1280.4825" pos_y="49.803894">
+    <Port name="in" id="6" direction="Input" presence="Always" />
+  </Node>
+  <Node name="videotestsrc" id="2" type="Source" pos_x="24.348145" pos_y="316.96716">
+    <Port name="out" id="2" direction="Output" presence="Always" />
+  </Node>
+  <Node name="videotestsrc" id="1" type="Source" pos_x="-13.714172" pos_y="38.73665">
+    <Port name="out" id="1" direction="Output" presence="Always" />
+  </Node>
+  <Node name="compositor" id="3" type="Transform" pos_x="374.61694" pos_y="158.55254">
+    <Port name="in" id="5" direction="Input" presence="Sometimes" />
+    <Port name="out" id="3" direction="Output" presence="Sometimes" />
+    <Port name="in" id="4" direction="Input" presence="Sometimes" />
+  </Node>
+  <Node name="queue" id="8" type="Transform" pos_x="808.4496" pos_y="307.0086">
+    <Port name="in" id="14" direction="Input" presence="Always" />
+    <Port name="out" id="15" direction="Output" presence="Always" />
+  </Node>
+  <Link id="4" node_from="3" node_to="5" port_from="3" port_to="7" active="true" />
+  <Link id="10" node_from="5" node_to="8" port_from="10" port_to="14" active="true" />
+  <Link id="2" node_from="2" node_to="3" port_from="2" port_to="5" active="true" />
+  <Link id="8" node_from="7" node_to="4" port_from="13" port_to="6" active="true" />
+  <Link id="12" node_from="8" node_to="9" port_from="15" port_to="16" active="true" />
+  <Link id="1" node_from="1" node_to="3" port_from="1" port_to="4" active="true" />
+  <Link id="7" node_from="5" node_to="7" port_from="8" port_to="12" active="true" />
+  <Link id="13" node_from="9" node_to="6" port_from="17" port_to="11" active="true" />
+</Graph>

graphs/playbin_http_trailer_ogg.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Graph id="0">
+  <Node name="playbin3" id="1" type="Source" pos_x="330.09708" pos_y="140.2776">
+    <Property name="uri" value="https://download.blender.org/peach/trailer/trailer_400p.ogg" />
+  </Node>
+</Graph>

graphs/video.xml

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Graph>
-  <Node name="videotestsrc" id="1" type="Source">
-    <Port name="out" id="1" direction="Output" />
+<Graph id="0">
+  <Node name="videotestsrc" id="1" type="Source" pos_x="0" pos_y="0">
+    <Port name="out" id="1" direction="Output" presence="Always" />
   </Node>
-  <Node name="autovideosink" id="2" type="Sink">
-    <Port name="in" id="2" direction="Input" />
+  <Node name="autovideosink" id="2" type="Sink" pos_x="545.5998" pos_y="20.14066">
+    <Port name="in" id="2" direction="Input" presence="Always" />
   </Node>
   <Link id="1" node_from="1" node_to="2" port_from="1" port_to="2" active="true" />
 </Graph>

graphs/videomixer_alpha.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Graph id="0">
+  <Node name="videomixer" id="3" type="Transform" pos_x="658.78845" pos_y="194.22154">
+    <Port name="sink_1" id="10" direction="Input" presence="Sometimes">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV, BGRA, ARGB, RGBA, ABGR, Y444, Y42B, YUY2, UYVY, YVYU, I420, YV12, NV12, NV21, Y41B, RGB, BGR, xRGB, xBGR, RGBx, BGRx }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]" />
+      <Property name="zorder" value="0" />
+    </Port>
+    <Port name="src_0" id="3" direction="Output" presence="Always">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV, BGRA, ARGB, RGBA, ABGR, Y444, Y42B, YUY2, UYVY, YVYU, I420, YV12, NV12, NV21, Y41B, RGB, BGR, xRGB, xBGR, RGBx, BGRx }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]" />
+    </Port>
+    <Port name="sink_0" id="9" direction="Input" presence="Sometimes">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV, BGRA, ARGB, RGBA, ABGR, Y444, Y42B, YUY2, UYVY, YVYU, I420, YV12, NV12, NV21, Y41B, RGB, BGR, xRGB, xBGR, RGBx, BGRx }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]" />
+      <Property name="zorder" value="1" />
+    </Port>
+  </Node>
+  <Node name="autovideosink" id="5" type="Sink" pos_x="1393.3219" pos_y="200.00417">
+    <Port name="sink_0" id="6" direction="Input" presence="Always">
+      <Property name="_caps" value="ANY" />
+    </Port>
+  </Node>
+  <Node name="videotestsrc" id="1" type="Source" pos_x="-54.65982" pos_y="58.382446">
+    <Port name="src_0" id="1" direction="Output" presence="Always">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV64, ARGB64, GBRA_12LE, GBRA_12BE, Y412_LE, Y412_BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, RGB10A2_LE, BGR10A2_LE, Y410, GBRA, ABGR, VUYA, BGRA, AYUV, ARGB, RGBA, A420, Y444_16LE, Y444_16BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, v210, UYVP, I420_10LE, I420_10BE, P010_10LE, NV12_10LE32, NV12_10LE40, P010_10BE, Y444, GBR, NV24, xBGR, BGRx, xRGB, RGBx, BGR, IYU2, v308, RGB, Y42B, NV61, NV16, VYUY, UYVY, YVYU, YUY2, I420, YV12, NV21, NV12, NV12_64Z32, NV12_4L4, NV12_32L32, Y41B, IYU1, YVU9, YUV9, RGB16, BGR16, RGB15, BGR15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE32, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], multiview-mode=(string){ mono, left, right }; video/x-bayer, format=(string){ bggr, rggb, grbg, gbrg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], multiview-mode=(string){ mono, left, right }" />
+    </Port>
+    <Property name="pattern" value="13" />
+  </Node>
+  <Node name="videotestsrc" id="2" type="Source" pos_x="-27.72644" pos_y="379.1207">
+    <Port name="src_0" id="2" direction="Output" presence="Always">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV64, ARGB64, GBRA_12LE, GBRA_12BE, Y412_LE, Y412_BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, RGB10A2_LE, BGR10A2_LE, Y410, GBRA, ABGR, VUYA, BGRA, AYUV, ARGB, RGBA, A420, Y444_16LE, Y444_16BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, v210, UYVP, I420_10LE, I420_10BE, P010_10LE, NV12_10LE32, NV12_10LE40, P010_10BE, Y444, GBR, NV24, xBGR, BGRx, xRGB, RGBx, BGR, IYU2, v308, RGB, Y42B, NV61, NV16, VYUY, UYVY, YVYU, YUY2, I420, YV12, NV21, NV12, NV12_64Z32, NV12_4L4, NV12_32L32, Y41B, IYU1, YVU9, YUV9, RGB16, BGR16, RGB15, BGR15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE32, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], multiview-mode=(string){ mono, left, right }; video/x-bayer, format=(string){ bggr, rggb, grbg, gbrg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], multiview-mode=(string){ mono, left, right }" />
+    </Port>
+    <Property name="pattern" value="1" />
+  </Node>
+  <Node name="alpha" id="4" type="Transform" pos_x="290.85873" pos_y="58.17296">
+    <Port name="sink_0" id="4" direction="Input" presence="Always">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV, ARGB, BGRA, ABGR, RGBA, Y444, xRGB, BGRx, xBGR, RGBx, RGB, BGR, Y42B, YUY2, YVYU, UYVY, I420, YV12, Y41B }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]" />
+    </Port>
+    <Port name="src_0" id="5" direction="Output" presence="Always">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV, ARGB, BGRA, ABGR, RGBA, Y444, xRGB, BGRx, xBGR, RGBx, RGB, BGR, Y42B, YUY2, YVYU, UYVY, I420, YV12, Y41B }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]" />
+    </Port>
+    <Property name="method" value="1" />
+  </Node>
+  <Node name="videoconvert" id="6" type="Transform" pos_x="1016.99066" pos_y="196.31989">
+    <Port name="sink_0" id="7" direction="Input" presence="Always">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV64, ARGB64, GBRA_12LE, GBRA_12BE, Y412_LE, Y412_BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, RGB10A2_LE, BGR10A2_LE, Y410, GBRA, ABGR, VUYA, BGRA, AYUV, ARGB, RGBA, A420, Y444_16LE, Y444_16BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, v210, UYVP, I420_10LE, I420_10BE, P010_10LE, NV12_10LE32, NV12_10LE40, P010_10BE, Y444, GBR, NV24, xBGR, BGRx, xRGB, RGBx, BGR, IYU2, v308, RGB, Y42B, NV61, NV16, VYUY, UYVY, YVYU, YUY2, I420, YV12, NV21, NV12, NV12_64Z32, NV12_4L4, NV12_32L32, Y41B, IYU1, YVU9, YUV9, RGB16, BGR16, RGB15, BGR15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE32, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw(ANY), format=(string){ AYUV64, ARGB64, GBRA_12LE, GBRA_12BE, Y412_LE, Y412_BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, RGB10A2_LE, BGR10A2_LE, Y410, GBRA, ABGR, VUYA, BGRA, AYUV, ARGB, RGBA, A420, Y444_16LE, Y444_16BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, v210, UYVP, I420_10LE, I420_10BE, P010_10LE, NV12_10LE32, NV12_10LE40, P010_10BE, Y444, GBR, NV24, xBGR, BGRx, xRGB, RGBx, BGR, IYU2, v308, RGB, Y42B, NV61, NV16, VYUY, UYVY, YVYU, YUY2, I420, YV12, NV21, NV12, NV12_64Z32, NV12_4L4, NV12_32L32, Y41B, IYU1, YVU9, YUV9, RGB16, BGR16, RGB15, BGR15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE32, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]" />
+    </Port>
+    <Port name="src_0" id="8" direction="Output" presence="Always">
+      <Property name="_caps" value="video/x-raw, format=(string){ AYUV64, ARGB64, GBRA_12LE, GBRA_12BE, Y412_LE, Y412_BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, RGB10A2_LE, BGR10A2_LE, Y410, GBRA, ABGR, VUYA, BGRA, AYUV, ARGB, RGBA, A420, Y444_16LE, Y444_16BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, v210, UYVP, I420_10LE, I420_10BE, P010_10LE, NV12_10LE32, NV12_10LE40, P010_10BE, Y444, GBR, NV24, xBGR, BGRx, xRGB, RGBx, BGR, IYU2, v308, RGB, Y42B, NV61, NV16, VYUY, UYVY, YVYU, YUY2, I420, YV12, NV21, NV12, NV12_64Z32, NV12_4L4, NV12_32L32, Y41B, IYU1, YVU9, YUV9, RGB16, BGR16, RGB15, BGR15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE32, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw(ANY), format=(string){ AYUV64, ARGB64, GBRA_12LE, GBRA_12BE, Y412_LE, Y412_BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, RGB10A2_LE, BGR10A2_LE, Y410, GBRA, ABGR, VUYA, BGRA, AYUV, ARGB, RGBA, A420, Y444_16LE, Y444_16BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, v210, UYVP, I420_10LE, I420_10BE, P010_10LE, NV12_10LE32, NV12_10LE40, P010_10BE, Y444, GBR, NV24, xBGR, BGRx, xRGB, RGBx, BGR, IYU2, v308, RGB, Y42B, NV61, NV16, VYUY, UYVY, YVYU, YUY2, I420, YV12, NV21, NV12, NV12_64Z32, NV12_4L4, NV12_32L32, Y41B, IYU1, YVU9, YUV9, RGB16, BGR16, RGB15, BGR15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE32, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]" />
+    </Port>
+  </Node>
+  <Link id="2" node_from="4" node_to="3" port_from="5" port_to="9" active="true" />
+  <Link id="3" node_from="2" node_to="3" port_from="2" port_to="10" active="true" />
+  <Link id="4" node_from="3" node_to="6" port_from="3" port_to="7" active="true" />
+  <Link id="1" node_from="1" node_to="4" port_from="1" port_to="4" active="true" />
+  <Link id="5" node_from="6" node_to="5" port_from="8" port_to="6" active="true" />
+</Graph>

index.html

@@ -0,0 +1,53 @@
+<html>
+< <head>
+    <title>GstPipelineStudio</title>
+    <link rel="stylesheet" href="data/css/style.css">
+    <link rel="icon" href="data/icons/org.freedesktop.dabrain34.GstPipelineStudio.ico">
+    </head>
+
+    <body>
+        <div class="container">
+            <h1 id="logo"></h1>
+            <h1>GstPipelineStudio: Draw your own pipeline ...</h1>
+            <p><img src="data/screenshots/gps_screenshot.png" alt=""></p>
+            <p>GstPipelineStudio aims to provide a graphical user interface to the GStreamer framework. From a first
+                step in the framework with a simple pipeline to a complex pipeline debugging, the tool provides a
+                friendly interface to add elements to a pipeline and debug it.</p>
+            <h2>GstPipelineStudio 0.3.5 is out, checkout the <a
+                    href="https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio/-/blob/main/ChangeLog.md?ref_type=heads#anchor-033">
+                    Release Notes</a> !
+                <br>
+                <br>
+                <p>Download:</p>
+                <ul>
+                    <li><a href="https://flathub.org/apps/org.freedesktop.dabrain34.GstPipelineStudio">Flathub</a></li>
+                    <li><a
+                            href="https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio/uploads/0ab4098a9385f21d72881d27530e6e27/GstPipelineStudio-0.3.5.msi">Windows
+                            MSI</a>
+
+                    </li>
+                    <li><a
+                            href="https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio/uploads/d6d703809e3023de04e7ad1449fcb4aa/GstPipelineStudio-0.3.5.dmg">MacOS</a>
+
+                    </li>
+                </ul>
+
+                <h2 id="getting-gps">Contributing to GstPipelineStudio</h2>
+                <p>If you want to get the the code from Gitlab, you can visit this <a
+                        href="https://flathub.org/apps/org.freedesktop.dabrain34.GstPipelineStudio">webpage</a>
+                    and follow the <a
+                        href="https://flathub.org/apps/org.freedesktop.dabrain34.GstPipelineStudio/README.md">README</a>
+                    to build your own version of GstPipelineStudio.
+                </p>
+
+
+            </h2>
+    </body>
+    <footer class="site-footer">
+        <p>&copy; GstPipelineStudio, 2023</p>
+
+        <p><a href="https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio">Website source</a></p>
+    </footer>
+
+
+</html>

installer/macos/brew_setup.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+HOMEBREW_NO_INSTALL_CLEANUP=1
+
+/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+
+brew install pkg-config
+
+# GTK4 support
+brew install gtk4
+# brew install cairo libxrandr libxi libxcursor libxdamage libxinerama
+
+brew install npm
+
+npm install -g appdmg
+
+exit 0

installer/macos/deploy_macos.sh

@@ -0,0 +1,186 @@
+#!/bin/bash
+
+
+test_ok() {
+  $*
+  if [ $? != 0 ]; then
+    exit 1
+  fi
+
+}
+
+# dependency library:
+# Make a .app file: https://gist.github.com/oubiwann/453744744da1141ccc542ff75b47e0cf
+# Make a .dmg file: https://github.com/LinusU/node-appdmg
+# Can't find library: https://www.jianshu.com/p/441a7553700f
+BUILD_DIR=builddir
+PROJECTDIR="$( cd "$(dirname "$0")/../" ; pwd -P )"
+TARGETDIR="${PROJECTDIR}/${BUILD_DIR}/INSTALL_GPS"
+VERSION="$(cat VERSION)"
+export VERSION
+echo "VERSION=$VERSION"
+
+
+GSTREAMER_OPTS="
+        -Dforce_fallback_for=gstreamer-1.0,libffi,pcre2 \
+        -Dgstreamer-1.0:libav=disabled \
+        -Dgstreamer-1.0:examples=disabled \
+        -Dgstreamer-1.0:introspection=disabled \
+        -Dgstreamer-1.0:rtsp_server=disabled \
+        -Dgstreamer-1.0:devtools=disabled \
+        -Dgst-plugins-base:tests=disabled \
+        -Dgstreamer-1.0:tests=disabled \
+        -Dgst-plugins-bad:openexr=disabled -Dgstreamer-1.0:gst-examples=disabled \
+        -Dorc:gtk_doc=disabled \
+        -Dgstreamer-1.0:ges=disabled \
+        -Dgstreamer-1.0:python=disabled"
+
+# rebuild app release version
+rm -rf "${TARGETDIR}"
+test_ok meson --prefix=$TARGETDIR --buildtype=release ${BUILD_DIR} ${GSTREAMER_OPTS}
+test_ok ninja -C ${BUILD_DIR} install
+
+
+# copy app data files to target dir
+echo -n "Copy app data files......"
+test_ok mkdir -p "${TARGETDIR}/etc/"
+mkdir -p "${TARGETDIR}/lib/gstreamer-1.0"
+mkdir -p "${TARGETDIR}/share/doc"
+mkdir -p "${TARGETDIR}/share/themes"
+mkdir -p "${TARGETDIR}/share/glib-2.0/schemas"
+mkdir -p "${TARGETDIR}/share/licenses/GstPipelineStudio"
+mkdir -p "${TARGETDIR}/share/icons/hicolor/scalable/apps"
+echo "[done]"
+
+function lib_dependency_copy
+{
+  local target=$1
+  local folder=$2
+
+  lib_dir="$( cd "$( dirname "$1" )" >/dev/null 2>&1 && pwd )"
+  libraries="$(otool -L $target | grep "/*.*dylib" -o | xargs)"
+  for lib in $libraries; do
+    if [[ '/usr/lib/' != ${lib:0:9} && '/System/Library/' != ${lib:0:16} ]]; then
+      if [[ '@' == ${lib:0:1} ]]; then
+        if [[ '@loader_path' == ${lib:0:12} ]]; then
+          cp -n "${lib/@loader_path/$lib_dir}" $folder
+        else
+          echo "Unsupported path: $lib"
+        fi
+      else
+        if [[ $lib != $target ]]; then
+          cp -n $lib $folder
+        fi
+      fi
+    fi
+  done
+}
+
+function lib_dependency_analyze
+{
+  # This function use otool to analyze library dependency.
+  # then copy the dependency libraries to destination path
+
+  local library_dir=$1
+  local targets_dir=$2
+
+  libraries="$(find $library_dir -name \*.dylib -o -name \*.so -type f)"
+  for lib in $libraries; do
+      lib_dependency_copy $lib $targets_dir
+      # otool -L $lib | grep "/usr/local/*.*dylib" -o | xargs -I{} cp -n "{}" "$targets_dir"
+  done
+}
+
+# copy app dependency library to target dir
+echo -n "Copy app dependency library......"
+
+lib_dependency_copy ${TARGETDIR}/bin/gst-pipeline-studio "${TARGETDIR}/bin"
+lib_dependency_copy ${TARGETDIR}/lib/libgobject-2.0.0.dylib "${TARGETDIR}/bin"
+lib_dependency_copy ${TARGETDIR}/lib/libsoup-2.4.1.dylib "${TARGETDIR}/bin"
+lib_dependency_copy "${TARGETDIR}/bin/libgtk-4.1.dylib" "${TARGETDIR}/bin"
+
+
+for file in ${TARGETDIR}/lib/gstreamer-1.0/*.dylib
+do
+    echo "${file}"
+    lib_dependency_copy ${file} "${TARGETDIR}/lib/"
+done
+
+test_ok cp -f "${PROJECTDIR}/macos/mac_launcher.sh" "${TARGETDIR}/bin/launcher.sh"
+
+# FIXME should build and install gtk4 instead of using homebrew
+
+# copy GTK runtime dependencies resource
+# echo -n "Copy GTK runtime resource......"
+# cp -rf /usr/local/lib/gio "${TARGETDIR}/lib/"
+# cp -rf /usr/local/lib/gtk-3.0 "${TARGETDIR}/lib/"
+# cp -rf /usr/local/lib/gdk-pixbuf-2.0 "${TARGETDIR}/lib/"
+# cp -rf /usr/local/lib/girepository-1.0 "${TARGETDIR}/lib/"
+# cp -rf /usr/local/lib/libgda-5.0 "${TARGETDIR}/lib/"
+# # Avoid override the latest locale file
+cp -r  /opt/homebrew/share/locale "${TARGETDIR}/share/"
+cp -rf /opt/homebrew/share/icons "${TARGETDIR}/share/"
+cp -rf /opt/homebrew/share/gtk4-0 "${TARGETDIR}/share/"
+# cp -rf /usr/local/share/fontconfig "${TARGETDIR}/share/"
+# cp -rf /usr/local/share/themes/Mac "${TARGETDIR}/share/themes/"
+# cp -rf /usr/local/share/themes/Default "${TARGETDIR}/share/themes/"
+# cp -rf /usr/local/share/gtksourceview-4 "${TARGETDIR}/share/"
+# glib-compile-schemas /usr/local/share/glib-2.0/schemas
+# cp -f /usr/local/share/glib-2.0/schemas/gschema* "${TARGETDIR}/share/glib-2.0/schemas"
+# # find "${TARGETDIR}/bin" -type f -path '*.dll.a' -exec rm '{}' \;
+lib_dependency_analyze ${TARGETDIR}/lib ${TARGETDIR}/bin
+lib_dependency_analyze ${TARGETDIR}/bin ${TARGETDIR}/bin
+echo "[done]"
+
+# copy app icons and license files to target dir
+echo -n "Copy app icon(svg) files......"
+cp -f "${PROJECTDIR}/../data/icons/org.freedesktop.dabrain34.GstPipelineStudio.ico" "${TARGETDIR}/bin"
+cp -f "${PROJECTDIR}/../data/icons/org.freedesktop.dabrain34.GstPipelineStudio.svg" "${TARGETDIR}/share/icons/hicolor/scalable/apps"
+echo "[done]"
+
+
+# download license file: LGPL-3.0
+echo -n "Downloading the remote license file......"
+cp -f "${PROJECTDIR}/../LICENSE" "${TARGETDIR}/share/licenses/GstPipelineStudio"
+if [ ! -f "${TARGETDIR}/share/licenses/GstPipelineStudio/gpl-3.0.txt" ]; then
+  curl "https://www.gnu.org/licenses/gpl-3.0.txt" -o "${TARGETDIR}/share/licenses/GstPipelineStudio/gpl-3.0.txt"
+  if [ $? -eq 0 ]; then
+    echo "[done]"
+  else
+    echo "[failed]"
+  fi
+else
+  echo "[done]"
+fi
+
+echo "make macos executable file(.app)......"
+cd "${PROJECTDIR}/${BUILD_DIR}"
+cp "${PROJECTDIR}/macos/installers/Info.plist" "${PROJECTDIR}/${BUILD_DIR}"
+cp "${PROJECTDIR}/macos/installers/mac.icns" "${PROJECTDIR}/${BUILD_DIR}/GstPipelineStudio.icns"
+../macos/mac_app_pack.sh --path "${TARGETDIR}" --name "GstPipelineStudio" --info "Info.plist" --icons "GstPipelineStudio.icns"
+if [ $? -eq 0 ]; then
+  echo "[done]"
+  else
+  echo "[failed]"
+fi
+
+# make installer package
+echo "make macos installer(.dmg)......"
+cp "${PROJECTDIR}/macos/installers/dmg.json" gps_dmg.json
+cp "${PROJECTDIR}/macos/installers/background.png" "${PROJECTDIR}/${BUILD_DIR}/gps_dmg_background.png"
+rm -f ${PROJECTDIR}/GstPipelineStudio-${VERSION}.dmg
+appdmg gps_dmg.json "${PROJECTDIR}/GstPipelineStudio-${VERSION}.dmg"
+if [ $? -eq 0 ]; then
+  echo "[done]"
+  else
+  echo "[failed]"
+fi
+
+# make portable package
+echo -n "make macos portable......"
+tar czf "${PROJECTDIR}/GstPipelineStudio-${VERSION}.tar.gz" -C "${PROJECTDIR}" ${BUILD_DIR}/GstPipelineStudio.app
+if [ $? -eq 0 ]; then
+  echo "[done]"
+  else
+  echo "[failed]"
+fi

installer/macos/installers/Info.plist

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+    <!-- Reference: https://github.com/geany/geany-osx/blob/master/Info.plist -->
+    <dict>
+        <key>CFBundleShortVersionString</key>
+        <string>1.36</string>
+        <key>CFBundleVersion</key>
+        <string>1.36</string>
+        <key>NSHumanReadableCopyright</key>
+        <string>Copyright (C)2022 Stephane Cerveau</string>
+        <key>CFBundleGetInfoString</key>
+        <string>Copyright (C)2022 Stephane Cerveau</string>
+        <key>CFBundleDevelopmentRegion</key>
+        <string>English</string>
+        <key>CFBundleName</key>
+        <string>GstPipelineStudio</string>
+        <key>GtkOSXLaunchScriptFile</key>
+        <string>launcher.sh</string>
+        <key>CFBundleExecutable</key>
+        <string>gst-pipeline-studio</string>
+        <key>CFBundleIconFile</key>
+        <string>GstPipelineStudio.icns</string>
+        <key>CFBundleIdentifier</key>
+        <string>org.freedesktop.dabrain34.GstPipelineStudio</string>
+        <key>CFBundleInfoDictionaryVersion</key>
+        <string>6.0</string>
+        <key>CFBundlePackageType</key>
+        <string>APPL</string>
+        <key>CFBundleSignature</key>
+        <string>????</string>
+        <key>LSMinimumSystemVersion</key>
+        <string>10.9</string>
+        <key>LSApplicationCategoryType</key>
+        <string>public.app-category.developer-tools</string>
+        <key>NSHighResolutionCapable</key>
+        <true/>
+        <key>CFBundleVersion</key>
+        <string>1</string>
+        <key>NSPrincipalClass</key>
+        <string>NSApplication</string>
+    </dict>
+</plist>

installer/macos/installers/dmg.json

@@ -0,0 +1,9 @@
+{
+    "title": "GstPipelineStudio installer",
+    "icon": "GstPipelineStudio.icns",
+    "background": "gps_dmg_background.png",
+    "contents": [
+      { "x": 948, "y": 270, "type": "link", "path": "/Applications" },
+      { "x": 692, "y": 270, "type": "file", "path": "GstPipelineStudio.app" }
+    ]
+}

installer/macos/mac_app_pack.sh

@@ -0,0 +1,131 @@
+#!/usr/bin/env bash
+
+VERSION=4.0.1
+SCRIPT=`basename "$0"`
+APP_NAME="GstPipelineStudio"
+APP_ICONS="/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/GenericApplicationIcon.icns"
+OSX_VERSION=`sw_vers -productVersion`
+PWD=`pwd`
+
+function usage {
+	cat <<EOF
+$SCRIPT v${VERSION} for for Mac OS X
+Usage:
+  $SCRIPT [options]
+Options:
+  -h, --help 		Prints this help message, then exits
+  -p, --path    Name of the path to 'appify' (required)
+  -n, --name 		Name of the application (default "$APP_NAME")
+  -o, --info    Name of the Info.plist
+  -i, --icons		Name of the icons file to use when creating the app
+                        (defaults to $APP_ICONS)
+  -v, --version		Prints the version of this script, then exits
+Description:
+  Creates the GTK Mac app from a GTK install path.
+  Appify has one required parameter, the path to appify:
+    $SCRIPT --path gtk-app-install-path
+  Note that you cannot rename appified apps. If you want to give your app
+  a custom name, use the '--name' option
+    $SCRIPT --path gtk-app-install-path --name "Sweet"
+Copyright:
+  Copyright (c) Thomas Aylott <http://subtlegradient.com/>
+  Modified by Mathias Bynens <http://mathiasbynens.be/>
+  Modified by Andrew Dvorak <http://OhReally.net/>
+  Rewritten by Duncan McGreggor <http://github.com/oubiwann/>
+  Modified by Zuhong Tao <https://github.com/taozuhong>
+EOF
+	exit 1
+}
+
+function version {
+	echo "v${VERSION}"
+	exit 1
+}
+
+function error {
+	echo
+	echo "ERROR: $1"
+	echo
+	usage
+}
+
+while :; do
+  case $1 in
+    -h | --help )    usage;;
+    -p | --path )    APP_BUILD="$2"; shift ;;
+    -n | --name )    APP_NAME="$2"; shift ;;
+    -o | --info )    APP_INFO="$2"; shift ;;
+    -i | --icons )   APP_ICONS="$2"; shift ;;
+    -v | --version ) version;;
+    -- )             shift; break ;;
+    * )              break ;;
+  esac
+  shift
+done
+
+if [ -z ${APP_BUILD+nil} ]; then
+	error "The GTK app path to appify must be provided!"
+fi
+
+if [ ! -d "$APP_BUILD" ]; then
+	error "Can't find the target path '$APP_BUILD'"
+fi
+
+if [ -a "$APP_NAME.app" ]; then
+	rm -rf "$APP_NAME.app"
+fi
+
+SCRIPT_PATH="$( cd "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
+APP_OUT_DIR="$( cd "$(dirname "$APP_BUILD")" >/dev/null 2>&1 ; pwd -P )"
+
+APP_TOP_DIR=$APP_OUT_DIR/$APP_NAME.app
+APP_CON_DIR=$APP_TOP_DIR/Contents
+APP_RES_DIR=$APP_CON_DIR/Resources
+APP_EXE_DIR=$APP_CON_DIR/MacOS
+APP_ETC_DIR=$APP_RES_DIR/etc
+APP_LIB_DIR=$APP_RES_DIR/lib
+
+# Copy GstPipelineStudio.app resource
+mkdir -vp "$APP_CON_DIR"/{MacOS,Resources}
+cp -f "$APP_INFO" "$APP_CON_DIR/Info.plist"
+cp -f "$APP_ICONS" "$APP_RES_DIR/$APP_NAME.icns"
+cp -rf "$APP_BUILD/etc" "$APP_RES_DIR"
+cp -rf "$APP_BUILD/lib" "$APP_RES_DIR"
+cp -rf "$APP_BUILD/share" "$APP_RES_DIR"
+cp -rf "$APP_BUILD/libexec" "$APP_RES_DIR"
+cp $APP_BUILD/bin/gst-pipeline-studio $APP_EXE_DIR/gst-pipeline-studio-real
+cp $APP_BUILD/bin/launcher.sh $APP_EXE_DIR/gst-pipeline-studio
+chmod 766 "$APP_EXE_DIR/gst-pipeline-studio"
+chmod 766 "$APP_EXE_DIR/gst-pipeline-studio-real"
+chmod -R 766 "$APP_RES_DIR"/libexec/gstreamer-1.0
+
+
+# Copy dependency libraries and update their search path
+source $SCRIPT_PATH/mac_app_path.sh
+if ls $APP_BUILD/bin/*.so 1> /dev/null 2>&1; then
+  for sofile in $APP_BUILD/bin/*.so; do
+    cp $sofile $APP_LIB_DIR
+  done
+fi
+cp $APP_BUILD/bin/*.dylib $APP_LIB_DIR
+chmod -R 766 $APP_LIB_DIR
+
+echo -n "relocate the gstreamer plugins......"
+for file in $APP_LIB_DIR/gstreamer-1.0/*.dylib
+do
+  echo "relocating ${file}"
+  lib_change_paths \
+    @executable_path/../Resources/lib \
+    $APP_LIB_DIR \
+    ${file}
+done
+
+lib_change_paths \
+  @executable_path/../Resources/lib \
+  $APP_LIB_DIR \
+  $APP_EXE_DIR/gst-pipeline-studio-real
+
+
+lib_change_siblings $APP_LIB_DIR @loader_path
+
+echo "Mac app bundled at '$APP_TOP_DIR'"

installer/macos/mac_app_path.sh

@@ -0,0 +1,119 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# https://gitlab.com/inkscape/inkscape/-/blob/master/packaging/macos/bash_d/lib_.sh
+# examples:
+# lib_change_path \
+#  @executable_path/../Resources/lib/lib2geom.1.0.0.dylib \
+#  $APP_LIB_DIR/inkscape/libinkscape_base.dylib \
+#  $APP_EXE_DIR/inkscape
+#
+#lib_change_paths \
+#  @executable_path/../lib \
+#  $APP_LIB_DIR \
+#  $APP_BIN_DIR/gs
+#
+# lib_change_siblings $APP_LIB_DIR dylib
+# lib_change_siblings $APP_LIB_DIR so
+
+# include_guard
+
+### includes ###################################################################
+
+# Nothing here.
+
+### variables ##################################################################
+
+# Nothing here.
+
+### functions ##################################################################
+
+function lib_change_path
+{
+  # This is a simple wrapper around install_name_tool to reduce the
+  # number of arguments (like $source does not have to be provided
+  # here as it can be deducted from $target).
+  # Also, the requested change can be applied to multiple binaries
+  # at once since 2-n arguments can be supplied.
+
+  local target=$1         # new path to dynamically linked library
+  local binaries=${*:2}   # binaries to modify
+
+  local source_lib=${target##*/}   # get library filename from target location
+
+  for binary in $binaries; do   # won't work with spaces in paths
+    if [[ $binary == *.so ]] || [[ $binary == *.dylib ]]; then
+      lib_reset_id $binary
+    fi
+    local source=$(otool -L $binary | grep $source_lib | awk '{ print $1 }')
+    install_name_tool -change $source $target $binary
+  done
+}
+
+function lib_change_paths
+{
+  # This is a slightly more advanced wrapper around install_name_tool.
+  # Given a directory $lib_dir that contains the libraries, all libraries
+  # linked in $binary can be changed at once to a specified $target path.
+
+  local target=$1         # new path to dynamically linked library
+  local lib_dir=$2
+  local binaries=${*:3}
+
+  for binary in $binaries; do
+    if [[ $binary == *.so ]] || [[ $binary == *.dylib ]]; then
+      lib_reset_id $binary
+    fi
+    for linked_lib in $(otool -L $binary | tail -n +2 | awk '{ print $1 }'); do
+      if [ "$(basename $binary)" != "$(basename $linked_lib)" ] &&
+         [ -f $lib_dir/$(basename $linked_lib) ]; then
+        lib_change_path $target/$(basename $linked_lib) $binary
+      fi
+    done
+  done
+}
+
+function lib_change_siblings
+{
+  # This is a slightly more advanced wrapper around install_name_tool.
+  # All libraries inside a given $dir that are linked to libraries present
+  # in that $dir can be automatically adjusted.
+
+  local dir=$1
+  local target=$2
+
+  for lib in $dir/*.dylib; do
+    lib_reset_id $lib
+    for linked_lib in $(otool -L $lib | tail -n +2 | awk '{ print $1 }'); do
+      if [ "$(basename $lib)" != "$(basename $linked_lib)" ] &&
+         [ -f $dir/$(basename $linked_lib) ]; then
+        lib_change_path $target/$(basename $linked_lib) $lib
+      fi
+    done
+  done
+
+  if ls $dir/*.so 1> /dev/null 2>&1; then
+    for lib in $dir/*.so; do
+      lib_reset_id $lib
+      for linked_lib in $(otool -L $lib | tail -n +2 | awk '{ print $1 }'); do
+        if [ "$(basename $lib)" != "$(basename $linked_lib)" ] &&
+          [ -f $dir/$(basename $linked_lib) ]; then
+          lib_change_path $target/$(basename $linked_lib) $lib
+        fi
+      done
+    done
+  fi
+}
+
+function lib_reset_id
+{
+  local lib=$1
+
+  install_name_tool -id $(basename $lib) $lib
+}
+
+### aliases ####################################################################
+
+# Nothing here.
+
+### main #######################################################################
+
+# Nothing here.

installer/macos/mac_launcher.sh

@@ -0,0 +1,170 @@
+#!/bin/sh
+
+if test "x$GTK_DEBUG_LAUNCHER" != x; then
+    set -x
+fi
+
+if test "x$GTK_DEBUG_GDB" != x; then
+    EXEC="gdb --args"
+else
+    EXEC=exec
+fi
+
+name=`basename "$0"`
+bundle_app="$( cd "$( dirname "$0" )/../.." >/dev/null 2>&1 && pwd )"
+bundle_contents="$bundle_app"/Contents
+bundle_res="$bundle_contents"/Resources
+bundle_lib="$bundle_res"/lib
+bundle_libexec="$bundle_res"/libexec
+bundle_bin="$bundle_res"/bin
+bundle_data="$bundle_res"/share
+bundle_etc="$bundle_res"/etc
+
+export DYLD_LIBRARY_PATH="$bundle_lib"
+export XDG_CONFIG_DIRS="$bundle_etc"/xdg
+export XDG_DATA_DIRS="$bundle_data"
+export GTK_DATA_PREFIX="$bundle_res"
+export GTK_EXE_PREFIX="$bundle_res"
+export GTK_PATH="$bundle_res"
+export GST_PLUGIN_SCANNER="$bundle_libexec/gstreamer-1.0/gst-plugin-scanner"
+export GIO_EXTRA_MODULES="$bundle_lib/gio/modules"
+
+# GIO modules
+export GIO_MODULE_DIR="$bundle_lib/gio/modules"
+
+
+#GStreamer plugins
+export GST_PLUGIN_PATH="$bundle_lib/gstreamer-1.0"
+
+APP=$name
+I18NDIR="$bundle_data/locale"
+# Set the locale-related variables appropriately:
+unset LANG LC_MESSAGES LC_MONETARY LC_COLLATE
+
+# Has a language ordering been set?
+# If so, set LC_MESSAGES and LANG accordingly; otherwise skip it.
+# First step uses sed to clean off the quotes and commas, to change - to _, and change the names for the chinese scripts from "Hans" to CN and "Hant" to TW.
+APPLELANGUAGES=`defaults read .GlobalPreferences AppleLanguages | sed -En   -e 's/\-/_/' -e 's/Hant/TW/' -e 's/Hans/CN/' -e 's/[[:space:]]*\"?([[:alnum:]_]+)\"?,?/\1/p' `
+if test "$APPLELANGUAGES"; then
+    # A language ordering exists.
+    # Test, item per item, to see whether there is an corresponding locale.
+    for L in $APPLELANGUAGES; do
+	#test for exact matches:
+       if test -f "$I18NDIR/${L}/LC_MESSAGES/$APP.mo"; then
+	    export LANG=$L
+            break
+        fi
+	#This is a special case, because often the original strings are in US
+	#English and there is no translation file.
+	if test "x$L" == "xen_US"; then
+	    export LANG=$L
+	    break
+	fi
+	#OK, now test for just the first two letters:
+        if test -f "$I18NDIR/${L:0:2}/LC_MESSAGES/$APP.mo"; then
+	    export LANG=${L:0:2}
+	    break
+	fi
+	#Same thing, but checking for any english variant.
+	if test "x${L:0:2}" == "xen"; then
+	    export LANG=$L
+	    break
+	fi;
+    done
+fi
+unset APPLELANGUAGES L
+
+# If we didn't get a language from the language list, try the Collation preference, in case it's the only setting that exists.
+APPLECOLLATION=`defaults read .GlobalPreferences AppleCollationOrder`
+if test -z ${LANG} -a -n $APPLECOLLATION; then
+    if test -f "$I18NDIR/${APPLECOLLATION:0:2}/LC_MESSAGES/$APP.mo"; then
+	export LANG=${APPLECOLLATION:0:2}
+    fi
+fi
+if test ! -z $APPLECOLLATION; then
+    export LC_COLLATE=$APPLECOLLATION
+fi
+unset APPLECOLLATION
+
+# Continue by attempting to find the Locale preference.
+APPLELOCALE=`defaults read .GlobalPreferences AppleLocale`
+
+if test -f "$I18NDIR/${APPLELOCALE:0:5}/LC_MESSAGES/$APP.mo"; then
+    if test -z $LANG; then
+        export LANG="${APPLELOCALE:0:5}"
+    fi
+
+elif test -z $LANG -a -f "$I18NDIR/${APPLELOCALE:0:2}/LC_MESSAGES/$APP.mo"; then
+    export LANG="${APPLELOCALE:0:2}"
+fi
+
+#Next we need to set LC_MESSAGES. If at all possible, we want a full
+#5-character locale to avoid the "Locale not supported by C library"
+#warning from Gtk -- even though Gtk will translate with a
+#two-character code.
+if test -n $LANG; then
+#If the language code matches the applelocale, then that's the message
+#locale; otherwise, if it's longer than two characters, then it's
+#probably a good message locale and we'll go with it.
+    if test $LANG == ${APPLELOCALE:0:5} -o $LANG != ${LANG:0:2}; then
+	export LC_MESSAGES=$LANG
+#Next try if the Applelocale is longer than 2 chars and the language
+#bit matches $LANG
+    elif test $LANG == ${APPLELOCALE:0:2} -a $APPLELOCALE > ${APPLELOCALE:0:2}; then
+	export LC_MESSAGES=${APPLELOCALE:0:5}
+#Fail. Get a list of the locales in $PREFIX/share/locale that match
+#our two letter language code and pick the first one, special casing
+#english to set en_US
+    elif test $LANG == "en"; then
+	export LC_MESSAGES="en_US"
+    else
+	LOC=`find $PREFIX/share/locale -name $LANG???`
+	for L in $LOC; do
+	    export LC_MESSAGES=$L
+	done
+    fi
+else
+#All efforts have failed, so default to US english
+    export LANG="en_US"
+    export LC_MESSAGES="en_US"
+fi
+CURRENCY=`echo $APPLELOCALE |  sed -En 's/.*currency=([[:alpha:]]+).*/\1/p'`
+if test "x$CURRENCY" != "x"; then
+#The user has set a special currency. Gtk doesn't install LC_MONETARY files, but Apple does in /usr/share/locale, so we're going to look there for a locale to set LC_CURRENCY to.
+    if test -f /usr/local/share/$LC_MESSAGES/LC_MONETARY; then
+	if test -a `cat /usr/local/share/$LC_MESSAGES/LC_MONETARY` == $CURRENCY; then
+	    export LC_MONETARY=$LC_MESSAGES
+	fi
+    fi
+    if test -z "$LC_MONETARY"; then
+	FILES=`find /usr/share/locale -name LC_MONETARY -exec grep -H $CURRENCY {} \;`
+	if test -n "$FILES"; then
+	    export LC_MONETARY=`echo $FILES | sed -En 's%/usr/share/locale/([[:alpha:]_]+)/LC_MONETARY.*%\1%p'`
+	fi
+    fi
+fi
+#No currency value means that the AppleLocale governs:
+if test -z "$LC_MONETARY"; then
+    LC_MONETARY=${APPLELOCALE:0:5}
+fi
+#For Gtk, which only looks at LC_ALL:
+export LC_ALL=$LC_MESSAGES
+
+unset APPLELOCALE FILES LOC
+
+if test -f "$bundle_lib/charset.alias"; then
+    export CHARSETALIASDIR="$bundle_lib"
+fi
+
+# Extra arguments can be added in environment.sh.
+EXTRA_ARGS=
+if test -f "$bundle_res/environment.sh"; then
+  source "$bundle_res/environment.sh"
+fi
+
+# Strip out the argument added by the OS.
+if /bin/expr "x$1" : '^x-psn_' > /dev/null; then
+    shift 1
+fi
+
+$EXEC "$bundle_contents/MacOS/gst-pipeline-studio-real" "$@" $EXTRA_ARGS

installer/wix/LICENSE.rtf

@@ -0,0 +1,94 @@
+{\rtf1\ansi\deff3\adeflang1025
+{\fonttbl{\f0\froman\fprq2\fcharset0 Times New Roman;}{\f1\froman\fprq2\fcharset2 Symbol;}{\f2\fswiss\fprq2\fcharset0 Arial;}{\f3\froman\fprq2\fcharset128 Liberation Serif{\*\falt Times New Roman};}{\f4\fswiss\fprq2\fcharset128 Liberation Sans{\*\falt Arial};}{\f5\froman\fprq2\fcharset128 Times New Roman;}{\f6\froman\fprq0\fcharset128 Times New Roman;}{\f7\fnil\fprq2\fcharset128 Droid Sans;}{\f8\fnil\fprq2\fcharset128 FreeSans;}{\f9\fswiss\fprq0\fcharset128 FreeSans;}}
+{\colortbl;\red0\green0\blue0;\red128\green128\blue128;}
+{\stylesheet{\s0\snext0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031 Normal;}
+{\s15\sbasedon0\snext16\sb240\sa120\keepn\hich\af7\dbch\af8\afs28\loch\f4\fs28 Heading;}
+{\s16\sbasedon0\snext16\sb0\sa120 Text body;}
+{\s17\sbasedon16\snext17\sb0\sa120\dbch\af9 List;}
+{\s18\sbasedon0\snext18\sb120\sa120\noline\i\dbch\af9\afs24\ai\fs24 Caption;}
+{\s19\sbasedon0\snext19\noline\dbch\af9 Index;}
+}{\info{\creatim\yr0\mo0\dy0\hr0\min0}{\revtim\yr0\mo0\dy0\hr0\min0}{\printim\yr0\mo0\dy0\hr0\min0}{\comment LibreOffice}{\vern3500}}\deftab720
+
+{\*\pgdsctbl
+{\pgdsc0\pgdscuse195\pgwsxn12240\pghsxn15840\marglsxn1800\margrsxn1800\margtsxn1440\margbsxn1440\pgdscnxt0 Default;}}
+\formshade{\*\pgdscno0}\paperh15840\paperw12240\margl1800\margr1800\margt1440\margb1440\sectd\sbknone\sectunlocked1\pgndec\pgwsxn12240\pghsxn15840\marglsxn1800\margrsxn1800\margtsxn1440\margbsxn1440\ftnbj\ftnstart1\ftnrstcont\ftnnar\aenddoc\aftnrstcont\aftnstart1\aftnnrlc
+\pgndec\pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\fs44\lang255\loch\f6
+ }{\b\rtlch \ltrch\loch\fs44\lang255\loch\f6
+Installer, default installation}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+The installer (Microsoft Windows and MacOSX) and the default installation (GNU/Linux) contain and install the minimal default installation. At install time or later, the downloading of optional components is also possible, but read on for certain legal cautions you might want to take. All downloads are from the freedesktop.org website.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs44\lang255\loch\f6
+Licensing GStreamer}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+Gstreamer minimal default installation only contains packages which are licensed under the GNU LGPL license v2.1. This license gives you the Freedom to use, modify, make copies of the software either in the original or in a modified form, provided that the software you redistribute is licensed under the same licensing terms. This only extends to the software itself and modified versions of it, but you are free to link the LGPL software as a library used by other software under whichever license. In other words, it is a weak copyleft license.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+Therefore, it is possible to use GStreamer to build applications that are then distributed under a different license, including a proprietary one, provided that reverse engineering is not prohibited for debugging modifications purposes. Only the pieces of GStreamer that are under the LGPL need to be kept under the LGPL, and the corresponding source code must be distributed along with the application (or an irrevocable offer to do so for at least three years from distribution). Please consult section 6 of the LGPL for further details as to what the corresponding source code must contain.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+Some portions of the minimal default installation may be under different licenses, which are both more liberal than the LGPL (they are less strict conditions for granting the license) and compatible with the LGPL. This is advised locally.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs44\lang255\loch\f6
+Optional packages}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+There are two types of optional packages, which are under a different license or have other issues concerning patentability (or both).}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs36\lang255\loch\f6
+GPL code}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+Part of the optional packages are under the GNU GPL v2 or v3. This means that you cannot link the GPL software in a program unless the same program is also under the GPL, but you are invited to seek competent advice on how this works in your precise case and design choices. GPL is called \uc3 \u8220\'e2\'80\'9cstrong copyleft\u8221\'e2\'80\'9d because the condition to distributed under the same license has the largest possible scope and extends to all derivative works.\uc1 }
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs36\lang255\loch\f6
+Patents}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+Certain software, and in particular software that implements multimedia standard formats such as Mp3, MPEG 2 video and audio, h.264, MPEG 4 audio and video, AC3, etc, can have patent issues. In certain countries patents are granted on software and even software-only solution are by and large considered patentable and are patented (such as in the United States). In certain others, patents on pure software solutions are formally prohibited, but granted (this is the case of Europe), and in others again are neither allowed nor granted.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+It is up to you to make sure that in the countries where GStreamer is used, products are made using it and product are distributed, a license from the applicable patent holders is required or not. Receiving GStreamer \uc3 \u8211\'e2\'80\'93 or links to other downloadable software \u8211\'e2\'80\'93 does not provide any license expressed or implied over these patents, except in very limited conditions where the license so provides. No representation is made.\uc1 }
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+In certain cases, the optional packages are distributed only as source code. It is up the receiver to make sure that in the applicable circumstances compiling the same code for a given platform or distributing the object code is an act that infringes one or more patents.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs44\lang255\loch\f6
+Software is as-is}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+All software and GStreamer is provided as-is, without any warranty whatsoever. The individual licenses have particular language disclaiming liability: we invite you to read all of them. Should you need a warranty on the fact that software works as intended or have any kind of indemnification, you have the option to subscribe a software maintenance agreement with a company or entity that is in that business. Fluendo and Collabora, as well as some other companies, provide software maintenance agreements under certain conditions, you are invited to contact them in order to receive further details and discuss of the commercial terms.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs44\lang255\loch\f6
+Data protection}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+This website might use cookies and HTTP logs for statistical analysis and on an aggregate basis only.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs44\lang255\loch\f6
+Frequently Asked Questions}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs36\lang255\loch\f6
+What licenses are there?}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+GStreamer containst software under various licenses. See above.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs36\lang255\loch\f6
+How does this relate to the packaging system?}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+The packaging is only a more convenient way to install software and decide what's good for you. GStreamer is meant to be modular, making use of different modules, or plugins, that perform different activities.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+We provide some of them by default. Others are provided as an additional download, should you elect to do so. You could do the same by finding and downloading the same packages for your own platform. So it is entirely up to you to decide what to do.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+Also, we note that GStreamer elements are divided into different packages, roughly following the licensing conditions attached to the same. For instance, the codecs-gpl package contains GPL licensed codecs. All the packages installed by default, conversely, are licensed under the LGPL or a more liberal license. This division is provided only for ease of reference, but we cannot guarantee that our selection is 100% correct, so it is up to the user to verify the actual licensing conditions before distributing works that utilize GStreamer.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs36\lang255\loch\f6
+Can I / must I distribute GStreamer along with my application?}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+You surely can. All software is Free/Open Source software, and can be distributed freely. You are not required to distribute it. Only, be reminded that one of the conditions for you to use software under certain licenses to make a work containing such software, is that you also distribute the complete source code of the original code (or of the modified code, if you have modified it). There are alternative ways to comply with this obligation, some of them do not require any actual distribution of source code, but since GStreamer contains the entire source code, you might want to include it (or the directories containing the source code) with your application as a safe way to comply with this requirement of the license.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs36\lang255\loch\f6
+What happens when I modify the GStreamer's source code?}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+You are invited to do so, as the licenses (unless you are dealing with proprietary bits, but in that case you will not find the corresponding source code) so permit. Be reminded though that in that case you need to also provide the complete corresponding source code (and to preserve the same license, of course). You might also consider to push your modifications upstream, so that they are merged into the main branch of development if they are worth it and will be maintained by the GStreamer project and not by you individually. We invite you not to fork the code, if at all possible.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs36\lang255\loch\f6
+How does licensing relate to software patents? What about software patents in general?}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+This is a tricky question. We believe software patents should not exist, so that by distributing and using software on a general purpose machine you would not violate any of them. But the inconvenient truth is that they do exist.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+Software patents are widely available in the USA. Despite they are formally prohibited in the European Union, they indeed are granted by the thousand by the European Patent Office, and also some national patent offices follow the same path. In other countries they are not available.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+Since patent protection is a national state-granted monopoly, distributing software that violates patents in a given country could be entirely safe if done in another country. Fair use exceptions also exist. So we cannot advice you whether the software we provide would be considered violating patents in your country or in any other country, but that can be said for virtually all kinds of software. Only, since we deal with audio-video standards, and these standards are by and large designed to use certain patented technologies, it is common wisdom that the pieces of software that implement these standards are sensitive in this respect.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+This is why GStreamer has taken a modular approach, so that you can use a Free plugins or a proprietary, patent royalty bearing, plugin for a given standard.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b\rtlch \ltrch\loch\fs36\lang255\loch\f6
+What about static vs. dynamic linking and copyleft?}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+We cannot provide one single answer to that question. Since copyright in software works as copyright in literature, static linking means basically that the programmer includes bits of code of the original library in the bytecode at compile time. This amounts to make derivative code of the library without conceivable exceptions, so you need a permission from the copyright holders of the library to do this.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+A widespread line of thinking says that dynamic linking is conversely not relevant to the copyleft effect, since the mingling of code in a larger work is done at runtime. However, another equally authoritative line of thought says that only certain type of dynamic linking is not copyright relevant.  Therefore, using a library that is specifically designed to be loaded into a particular kind of software, even through API,  requires permission by the copyright holder of the library when the two pieces are distributed together.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+In all cases, since most of the software we include in GStreamer is under the LGPL, this permission is granted once for all, subject to compliance with the conditions set out by it. Therefore, the problem only arises when you want to use GPL libraries to make non-GPL applications, and you need to audit your software in that case to make sure that what you do is not an infringement. This is why we have put the GPL libraries in a separate set of optional components, so you have a clearer view of what is safely clear for use, and what might need better investigation on a case-by-case basis.}
+\par \pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af7\langfe2052\dbch\af8\afs24\alang1081\loch\f3\fs24\lang1031\sl276\slmult1\sb0\sa200{\b0\rtlch \ltrch\loch\fs24\lang255\loch\f6
+Please be reminded that even for LGPL, the recipient of the software must be in a position to replace the current library with a modified one, and to that effect some conditions apply, among which that for static linking you must also provide the complete toolchain required to relink the library (\uc3 \u8220\'e2\'80\'9cany data and utility programs needed for reproducing the executable from it\u8221\'e2\'80\'9d, except the \u8220\'e2\'80\'9cmajor components\u8221\'e2\'80\'9d) and that the license of the conditions of the resulting program must allow decompilation to debug modifications to the library.\uc1 }
+\par }

installer/wix/build_installer.ps1

@@ -0,0 +1,79 @@
+# Check wix installation
+$wixInstalledFolder = "C:\Program Files (x86)\WiX Toolset v3.11\bin"
+if(Test-Path $wixInstalledFolder)
+{
+    $wixFolder = $wixInstalledFolder
+}
+else
+{
+    $prepareWix = Join-Path $PSScriptRoot -ChildPath prepare_wix.ps1
+    & "$prepareWix"
+    $wixFolder = Join-Path $PSScriptRoot -ChildPath 'wix/'
+}
+$candleToolPath = Join-Path $wixFolder -ChildPath candle.exe
+$lightToolPath = Join-Path $wixFolder -ChildPath light.exe
+$heatToolPath = Join-Path $wixFolder -ChildPath heat.exe
+
+$GPSUpgradeCode = "9B87C8FF-599C-4F20-914E-AF5E68CB3DC0"
+
+$GPSVersion = Get-Content $PSScriptRoot\..\..\VERSION -Raw
+Write-Output $GPSVersion
+try
+{
+    Push-Location $PSScriptRoot
+
+    if(-not (Test-Path $wixFolder))
+    {
+        throw "Folder $wixFolder does not exist. Start DownloadAndExtractWix.ps1 script to create it."
+    }
+    if((-not (Test-Path $candleToolPath)) -or (-not (Test-Path $lightToolPath)))
+    {
+        throw "Tools required to build installer (candle.exe and light.exe) do not exist in wix folder."
+    }
+    # GST and GTK are installed in this folder by prepare_gstreamer.ps1.
+    # GST and GTK are built by the docker image.
+    $gstreamerInstallDir="c:\gst-install-clean"
+    $gstreamerBinInstallDir= Join-Path $gstreamerInstallDir -ChildPath "bin"
+    $gstreamerPluginInstallDir= Join-Path $gstreamerInstallDir -ChildPath "lib"
+    $gstreamerShareInstallDir= Join-Path $gstreamerInstallDir -ChildPath "share"
+
+    & "$heatToolPath" dir "$gstreamerBinInstallDir" -gg -sfrag -template:fragment -out gstreamer-1.0.wxs -cg "_gstreamer" -var var.gstreamerBinInstallDir -dr INSTALLFOLDER
+    & "$heatToolPath" dir "$gstreamerPluginInstallDir" -gg -sfrag -template:fragment -out gstreamer-plugins-1.0.wxs -cg "_gstreamer_plugins" -var var.gstreamerPluginInstallDir -dr INSTALLFOLDER
+    & "$heatToolPath" dir "$gstreamerShareInstallDir" -v -ke -gg -sfrag -template:fragment -out gstreamer-share-1.0.wxs -cg "_gstreamer_share" -var var.gstreamerShareInstallDir -dr INSTALLFOLDER
+
+    $files = "gps gstreamer-1.0 gstreamer-plugins-1.0 gstreamer-share-1.0"
+    $wxs_files = @()
+    $obj_files = @()
+    foreach ($f in $files.split(" ")){
+        $wxs_files += "$f.wxs"
+        $obj_files += "$f.wixobj"
+    }
+    Write-Output $wxs_files
+    Write-Output $obj_files
+    # compiling wxs file into wixobj
+    $msiFileName = "GstPipelineStudio-$GPSVersion.msi"
+    foreach ($f in $wxs_files){
+        & "$candleToolPath" "$f" -dPlatform=x64 -dGPSUpgradeCode="$GPSUpgradeCode" -dGPSVersion="$GPSVersion" -dgstreamerBinInstallDir="$gstreamerBinInstallDir" -dgstreamerPluginInstallDir="$gstreamerPluginInstallDir" -dgstreamerShareInstallDir="$gstreamerShareInstallDir"
+        if($LASTEXITCODE -ne 0)
+        {
+            throw "Compilation of $wxsFileName failed with exit code $LASTEXITCODE"
+        }
+    }
+
+    $AllArgs = $obj_files + @('-out', $msiFileName)
+
+    & $lightToolPath $AllArgs -ext WixUIExtension
+    if($LASTEXITCODE -ne 0)
+    {
+        throw "Linking of $wixobjFileName failed with exit code $LASTEXITCODE"
+    }
+}
+catch
+{
+    Write-Error $_
+    exit 1
+}
+finally
+{
+    Pop-Location
+}

installer/wix/gps.bat

@@ -0,0 +1,8 @@
+@echo off
+set MYDIR=%~dp0
+setlocal
+set PATH=%MYDIR%bin;%PATH%
+echo %PATH%
+set GST_PLUGIN_PATH=%MYDIR%\lib\gstreamer-1.0
+echo %GST_PLUGIN_PATH%
+gst-pipeline-studio.exe

installer/wix/gps.wxs

@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
+  <Product Id="*"
+           Language="1033"
+           Manufacturer="dabrain34"
+           Name="GstPipelineStudio"
+           UpgradeCode="$(var.GPSUpgradeCode)"
+           Version="$(var.GPSVersion)">
+
+    <Package InstallScope="perMachine" Compressed="yes" />
+
+    <MajorUpgrade DowngradeErrorMessage="A later version of [ProductName] is already installed. Setup will now exit." />
+    <WixVariable Id="WixUIBannerBmp" Value="wixbanner.bmp" />
+    <WixVariable Id="WixUIDialogBmp" Value="wixdialog.bmp" />
+
+    <MediaTemplate EmbedCab="yes" />
+
+    <UIRef Id="WixUI_InstallDir" />
+    <WixVariable Id="WixUILicenseRtf" Value="LICENSE.rtf" />
+
+    <Directory Id="TARGETDIR" Name="SourceDir">
+      <Directory Id="ProgramMenuFolder">
+        <Directory Id="GPSAppShortcuts" Name="GStreamer Pipeline Studio" />
+      </Directory>
+      <Directory Id="ProgramFilesFolder">
+        <Directory Id="INSTALLFOLDER" Name="GstPipelineStudio">
+          <Component Id="ProductComponent">
+            <File KeyPath="yes" Source="gps.bat">
+              <Shortcut Id="GPSAppShortcut"
+                 Directory="GPSAppShortcuts"
+                 Name="GPSApp"
+                 WorkingDirectory="INSTALLFOLDER"
+                 Advertise="yes"
+                 Icon="icon.ico"
+                 IconIndex="0"
+                >
+              </Shortcut>
+            </File>
+            <RemoveFolder Id="DeleteTheGPSAppShortcut"
+                   Directory="GPSAppShortcuts"
+                   On="uninstall" />
+          </Component>
+        </Directory>
+      </Directory>
+    </Directory>
+
+    <Property Id="WIXUI_INSTALLDIR" Value="INSTALLFOLDER"/>
+    <Icon Id="icon.ico" SourceFile="icon.ico"/>
+    <Property Id="ARPPRODUCTICON" Value="icon.ico" />
+
+    <Component Id="UninstallShortcut" Guid="*" Directory="GPSAppShortcuts">
+      <Shortcut Id="UninstallGPS"
+              Name="Uninstall GPS App"
+              Description="Uninstalls GPS App"
+              Target="[System64Folder]msiexec.exe"
+              Arguments="/x [ProductCode]" />
+      <RegistryValue Root="HKCU" Key="Software\GPS\GPSApp" Name="installed" Type="integer" Value="1" KeyPath="yes" />
+    </Component>
+
+    <Feature Id="GPSFeature">
+      <ComponentRef Id="ProductComponent" />
+      <ComponentGroupRef Id="_gstreamer" />
+      <ComponentGroupRef Id="_gstreamer_plugins" />
+      <ComponentGroupRef Id="_gstreamer_share" />
+      <ComponentRef Id="UninstallShortcut" />
+    </Feature>
+
+  </Product>
+</Wix>

installer/wix/prepare_gstreamer.ps1

@@ -0,0 +1,12 @@
+# install gtk, gstreamer built within the docker image to a clean folder used by wix to generate the package.
+Remove-Item -Recurse -Force c:\gst-install-clean
+New-Item c:\gst-install-clean -ItemType Directory
+New-Item c:\gst-install-clean\bin -ItemType Directory
+
+Copy-Item -Path C:\gst-install\bin\*.dll -Destination c:\gst-install-clean\bin\
+Copy-Item -Path C:\gst-install\bin\*.exe -Destination c:\gst-install-clean\bin\
+
+New-Item c:\gst-install-clean\lib\gstreamer-1.0 -ItemType Directory
+Copy-Item -Path C:\gst-install\lib\gstreamer-1.0\*.dll -Destination c:\gst-install-clean\lib\gstreamer-1.0
+
+Copy-Item -Path C:\gst-install\share -Destination c:\gst-install-clean\ -Recurse

installer/wix/prepare_wix.ps1

@@ -0,0 +1,40 @@
+#FIXME: The latest gstreamer windows image contains wix.
+$source = "https://github.com/wixtoolset/wix3/releases/download/wix3112rtm/wix311-binaries.zip"
+$destination = Join-Path $PSScriptRoot -ChildPath 'wix.zip'
+$wixFolder = Join-Path $PSScriptRoot -ChildPath 'wix/'
+
+try
+{
+    Push-Location $PSScriptRoot
+
+    if(Test-Path $destination)
+    {
+        Write-Host "WiX already download at: $destination"
+    }
+    else
+    {
+        Write-Host "Downloading $source ..."
+        Invoke-WebRequest -Uri $source -OutFile $destination
+        Write-Host "Download finished" -ForegroundColor Green
+    }
+    if(Test-Path $wixFolder)
+    {
+        Write-Host "WiX already extracted at: $wixFolder"
+    }
+    else
+    {
+        Write-Host "Extracting $destination ..."
+        Expand-Archive -LiteralPath $destination -DestinationPath $wixFolder
+        Write-Host "Extraction finished" -ForegroundColor Green
+    }
+
+}
+catch
+{
+    Write-Error $_
+    exit 1
+}
+finally
+{
+    Pop-Location
+}

meson.build

@@ -1,19 +1,25 @@
-project('gst_pipeline_studio',
-          version: '0.1.0',
-    meson_version: '>= 0.50.0',
+project('gst-pipeline-studio',
+          version: '0.3.5',
+    meson_version: '>= 0.63.0',
   default_options: [ 'warning_level=2',
                    ],
           license: 'GPL-3.0-or-later',
 )
-i18n = import('i18n')
 
+host_system = host_machine.system()
+
+python_mod = import('python')
+python3 = python_mod.find_installation()
+current_date = run_command(python3, '-c', 'import datetime; print(datetime.datetime.now().strftime("%Y-%m-%d"), end ="")').stdout()
+i18n = import('i18n')
+host_system = host_machine.system()
+
+dependency('gstreamer-1.0', version: '>= 1.20', fallback: ['gstreamer-1.0'])
+dependency('gstreamer-base-1.0', version: '>= 1.20', fallback: ['gstreamer-1.0'])
+dependency('gstreamer-video-1.0', version: '>= 1.20', fallback: ['gstreamer-1.0'])
 dependency('glib-2.0', version: '>= 2.66')
 dependency('gio-2.0', version: '>= 2.66')
-dependency('gtk4', version: '>= 4.0.0')
-dependency('gstreamer-1.0', version: '>= 1.18')
-dependency('gstreamer-base-1.0', version: '>= 1.18')
-dependency('gstreamer-plugins-base-1.0', version: '>= 1.18')
-dependency('gstreamer-plugins-bad-1.0', version: '>= 1.18')
+dependency('gtk4', version: '>= 4.0.0', fallback: ['gtk'])
 
 find_program('cargo', required: true)
 find_program('glib-compile-resources', required: true)
@@ -30,7 +36,7 @@ localedir = prefix / get_option('localedir')
 datadir = prefix / get_option('datadir')
 pkgdatadir = datadir / meson.project_name()
 iconsdir = datadir / 'icons'
-podir = meson.source_root () / 'po'
+podir = meson.project_source_root () / 'po'
 gettext_package = meson.project_name()
 base_id = 'org.freedesktop.dabrain34.GstPipelineStudio'
 
@@ -55,16 +61,18 @@ cargo_sources = files(
   'Cargo.toml',
   'Cargo.lock',
 )
-
-#subdir('data')
+if host_system == 'linux'
+subdir('data')
+endif
 subdir('src')
-#subdir('po')
+subdir('po')
 
 
 meson.add_dist_script(
   'build-aux/dist-vendor.sh',
-  meson.source_root(),
-  join_paths(meson.build_root(), 'meson-dist', meson.project_name() + '-' + version)
+  meson.project_source_root(),
+  join_paths(meson.project_build_root(), 'meson-dist', meson.project_name() + '-' + version)
 )
-
-meson.add_install_script('build-aux/meson/postinstall.py')
+if host_system == 'linux'
+  meson.add_install_script('build-aux/meson/postinstall.py')
+endif

po/LINGUAS

@@ -0,0 +1,2 @@
+fr
+it

po/POTFILES.in

@@ -0,0 +1,5 @@
+data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in
+data/org.freedesktop.dabrain34.GstPipelineStudio.desktop.in.in
+data/org.freedesktop.dabrain34.GstPipelineStudio.gschema.xml.in
+
+src/app.rs

po/fr.po

@@ -0,0 +1,44 @@
+# French translations for gps package.
+# Copyright (C) 2019 THE gps'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the GstPipelineStudio package.
+# Automatically generated, 2019.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: gps\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-09-29 22:56+0200\n"
+"PO-Revision-Date: 2019-09-29 22:46+0200\n"
+"Last-Translator: Stéphane Cerveau <scerveau@gmail.com>\n"
+"Language-Team: none\n"
+"Language: fr\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:7
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.desktop.in:4
+msgid "GstPipelineStudio"
+msgstr "GstPipelineStudio"
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:8
+msgid "Draw your own GStreamer pipeline..."
+msgstr "Dessine ton propre GStreamer pipeline..."
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:10
+msgid ""
+"GstPipelineStudio aims to provide a graphical user interface to the GStreamer framework. "
+"From a first step in the framework with a simple pipeline to a complex pipeline debugging, "
+"the tool provides a friendly interface to add elements to a pipeline and debug it."
+msgstr "GstPipelineStudio a pour but de fournir une interface utilisateur au logiciel GStreamer. "
+"Du premier pas dans GStreamer avec un simple pipeline à une version plus complexe avec debogage, l'outil offre "
+"une interface intuitive pour ajouter des elements à un pipeline pour l'examiner."
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.desktop.in.in:4
+msgid "A GUI for GStreamer"
+msgstr "Une interface utilisateur pour GStreamer"
+
+#: src/app.rs:344
+msgid "GPS is ready"
+msgstr "GPS est prêt"

po/gps.pot

@@ -0,0 +1,44 @@
+# French translations for GstPipelineStudio package.
+# Copyright (C) 2019 THE GstPipelineStudio'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the GstPipelineStudio package.
+# Automatically generated, 2019.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: gps\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-09-29 22:56+0200\n"
+"PO-Revision-Date: 2019-09-29 22:46+0200\n"
+"Last-Translator: Stéphane Cerveau <scerveau@gmail.com>\n"
+"Language-Team: none\n"
+"Language: fr\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:7
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.desktop.in:4
+msgid "GstPipelineStudio"
+msgstr "GstPipelineStudio"
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:8
+msgid "Draw your own GStreamer pipeline..."
+msgstr "Dessine ton propre GStreamer pipeline..."
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:10
+msgid ""
+"GstPipelineStudio aims to provide a graphical user interface to the GStreamer framework. "
+From a first step in the framework with a simple pipeline to a complex pipeline debugging, "
+the tool provides a friendly interface to add elements to a pipeline and debug it."
+msgstr "GstPipelineStudio a pour but de fournir une interface utilisateur au logiciel GStreamer. "
+Du premier pas dans GStreamer avec un simple pipeline à une version plus complexe avec debogage, l'outil offre "
+une interface intuitive pour ajouter des elements à un pipeline pour l'examiner."
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.desktop.in.in:4
+msgid "A GUI for GStreamer"
+msgstr "Une interface utilisateur pour GStreamer"
+
+#: src/app.rs:344
+msgid "GPS is ready"
+msgstr "GPS est prêt"

po/it.po

@@ -0,0 +1,45 @@
+# Italian translations for gps package.
+# Copyright (C) 2022 THE gps'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the GstPipelineStudio package.
+# Automatically generated, 2022.
+# Albano Battistella <albano_battistella>, 2022.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: gps\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-09-29 22:56+0200\n"
+"PO-Revision-Date: 2022-02-08 20:46+0100\n"
+"Last-Translator: Albano Battistella <albano_battistella@hotmail.com>\n"
+"Language-Team: Italian\n"
+"Language: it\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:7
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.desktop.in:4
+msgid "GstPipelineStudio"
+msgstr "GstPipelineStudio"
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:8
+msgid "Draw your own GStreamer pipeline..."
+msgstr "Disegna la tua pipeline GStreamer..."
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:10
+msgid ""
+"GstPipelineStudio aims to provide a graphical user interface to the GStreamer framework. "
+"From a first step in the framework with a simple pipeline to a complex pipeline debugging, "
+"the tool provides a friendly interface to add elements to a pipeline and debug it."
+msgstr "GstPipelineStudio mira a fornire un'interfaccia utente grafica al framework GStreamer. "
+"Da un primo passaggio nel framework con una pipeline semplice a un debug di una pipeline complessa,"
+"lo strumento fornisce un'interfaccia intuitiva per aggiungere elementi a una pipeline ed eseguirne il debug."
+
+#: data/org.freedesktop.dabrain34.GstPipelineStudio.desktop.in.in:4
+msgid "A GUI for GStreamer"
+msgstr "Una interfaccia grafica per GStreamer"
+
+#: src/app.rs:344
+msgid "GPS is ready"
+msgstr "GPS è pronto"

po/meson.build

@@ -0,0 +1 @@
+i18n.gettext(gettext_package, preset: 'glib')

release.md

@@ -0,0 +1,24 @@
+# Create a release
+
+- Update to the given version:
+  - meson.build
+  - cargo.toml
+  - VERSION
+  - index.html
+  - And rebuild to regenerate the cargo.lock
+  - update the changelog in org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in within release/description
+
+- create a tag on gitlab
+- Fetch the package from the `linux release` job or you can make it manually with:
+  - meson builddir -Dbuildtype=release
+  - ninja -C builddir dist
+- Upload the package .xz file and the sha256 to gitlab release page in the release notes
+see https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio/-/releases/0.3.2
+
+# flathub
+
+https://github.com/flathub/org.freedesktop.dabrain34.GstPipelineStudio
+
+  - Need to update the package and the sha256 from the release page, ie https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio/-/releases/0.3.2
+  - Create a pull request with the package update
+  - Wait at lest 2-3 hours after merging to get the update available.

src/about.rs

@@ -1,46 +0,0 @@
-// about.rs
-//
-// Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-// SPDX-License-Identifier: GPL-3.0-only
-use crate::app::GPSApp;
-use crate::config;
-use gettextrs::gettext;
-use gtk::prelude::*;
-
-use gtk::ApplicationWindow;
-
-pub fn display_about_dialog(app: &GPSApp) {
-    let window: ApplicationWindow = app
-        .builder
-        .object("mainwindow")
-        .expect("Couldn't get window");
-    let about_dialog = gtk::AboutDialogBuilder::new()
-        .modal(true)
-        .program_name("GstPipelineStudio")
-        .version(config::VERSION)
-        .comments(&gettext("Draw your own GStreamer pipeline"))
-        .website("https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio")
-        .authors(vec!["Stéphane Cerveau".to_string()])
-        .artists(vec!["Stéphane Cerveau".to_string()])
-        .translator_credits(&gettext("translator-credits"))
-        .logo_icon_name(config::APP_ID)
-        .license_type(gtk::License::Gpl30)
-        .transient_for(&window)
-        .build();
-
-    about_dialog.show();
-}

src/common.rs

@@ -2,29 +2,36 @@
 //
 // Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// This file is part of GstPipelineStudio
 //
 // SPDX-License-Identifier: GPL-3.0-only
 
 use anyhow::Result;
-use gstreamer as gst;
+use gtk::glib;
 
 pub fn init() -> Result<()> {
-    unsafe {
-        x11::xlib::XInitThreads();
-    }
+    std::env::set_var("GST_XINITTHREADS", "1");
     gst::init()?;
+    #[cfg(feature = "gtk4-plugin")]
+    {
+        gstgtk4::plugin_register_static().expect("Failed to register gstgtk4 plugin");
+    }
     gtk::init()?;
     Ok(())
 }
+
+pub fn value_as_str(v: &glib::Value) -> Option<String> {
+    match v.type_() {
+        glib::Type::I8 => Some(str_some_value!(v, i8).to_string()),
+        glib::Type::U8 => Some(str_some_value!(v, u8).to_string()),
+        glib::Type::BOOL => Some(str_some_value!(v, bool).to_string()),
+        glib::Type::I32 => Some(str_some_value!(v, i32).to_string()),
+        glib::Type::U32 => Some(str_some_value!(v, u32).to_string()),
+        glib::Type::I64 => Some(str_some_value!(v, i64).to_string()),
+        glib::Type::U64 => Some(str_some_value!(v, u64).to_string()),
+        glib::Type::F32 => Some(str_some_value!(v, f32).to_string()),
+        glib::Type::F64 => Some(str_some_value!(v, f64).to_string()),
+        glib::Type::STRING => str_opt_value!(v, String),
+        _ => None,
+    }
+}

src/config.rs.in

@@ -1,3 +1,3 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 pub static APP_ID: &str = @APP_ID@;
-pub static VERSION: &str = @VERSION@;
+pub static VERSION: &str = env!("CARGO_PKG_VERSION");

src/gps.ui

@@ -1,280 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <requires lib="gtk" version="4.0"/>
-  <menu id="primary_menu">
-    <section>
-      <item>
-        <attribute name="label" translatable="yes" comments="Primary menu entry that opens a new window.">_New Window</attribute>
-        <attribute name="action">app.new-window</attribute>
-        <attribute name="accel">&lt;primary&gt;n</attribute>
-      </item>
-      <item>
-        <attribute name="label" translatable="yes" comments="Primary menu entry that opens the graph">_Open</attribute>
-        <attribute name="action">app.open</attribute>
-        <attribute name="accel">&lt;primary&gt;n</attribute>
-      </item>
-      <item>
-        <attribute name="label" translatable="yes" comments="Primary menu entry that saves the graph">_Save As</attribute>
-        <attribute name="action">app.save_as</attribute>
-        <attribute name="accel">&lt;primary&gt;n</attribute>
-      </item>
-      <item>
-        <attribute name="label" translatable="yes" comments="Primary menu entry that opens the About dialog.">_About GstPipelineStudio</attribute>
-        <attribute name="action">app.about</attribute>
-      </item>
-      <item>
-        <attribute name="label" translatable="yes" comments="Primary menu entry that quit app">_Quit GstPipelineStudio</attribute>
-        <attribute name="action">app.quit</attribute>
-      </item>
-    </section>
-  </menu>
-  <menu id="port_menu">
-    <section>
-      <item>
-        <attribute name="label" translatable="yes" comments="port menu entry delete the link">_Delete link</attribute>
-        <attribute name="action">app.port.delete-link</attribute>
-      </item>
-    </section>
-  </menu>
-  <menu id="graph_menu">
-    <section>
-      <item>
-        <attribute name="label" translatable="yes" comments="graph menu entry add plugin">_Add plugin</attribute>
-        <attribute name="action">app.graph.add-plugin</attribute>
-      </item>
-      </section>
-  </menu>
-  <menu id="fav_menu">
-    <section>
-      <item>
-        <attribute name="label" translatable="yes" comments="favorite menu entry delete the favorite">_Remove favorite</attribute>
-        <attribute name="action">app.favorite.remove</attribute>
-      </item>
-      </section>
-  </menu>
-  <menu id="node_menu">
-    <section>
-      <item>
-        <attribute name="label" translatable="yes" comments="Node menu entry delete the element">_Delete node</attribute>
-        <attribute name="action">app.delete</attribute>
-      </item>
-      <submenu>
-        <attribute name="label" translatable="yes" comments="Node menu entry request pad">_Request pad</attribute>
-        <item>
-          <attribute name="label" translatable="yes" comments="Node menu entry request pad">_Request input pad</attribute>
-          <attribute name="action">app.node.request-pad-input</attribute>
-          <attribute name="accel">&lt;primary&gt;n</attribute>
-        </item>
-        <item>
-          <attribute name="label" translatable="yes" comments="Node menu entry request pad">_Request output pad</attribute>
-          <attribute name="action">app.node.request-pad-output</attribute>
-          <attribute name="accel">&lt;primary&gt;n</attribute>
-        </item>
-      </submenu>
-      <item>
-        <attribute name="label" translatable="yes" comments="Node menu entry request pad">_Properties</attribute>
-        <attribute name="action">app.node.properties</attribute>
-        <attribute name="accel">&lt;primary&gt;n</attribute>
-      </item>
-      <item>
-          <attribute name="label" translatable="yes" comments="Node menu entry add to favorite">_Add to favorite</attribute>
-          <attribute name="action">app.node.add-to-favorite</attribute>
-          <attribute name="accel">&lt;primary&gt;A</attribute>
-      </item>
-    </section>
-  </menu>
-  <object class="GtkPopoverMenu" id="app_pop_menu">
-  </object>
-  <object class="GtkAdjustment" id="scale_adjustment">
-    <property name="upper">100</property>
-    <property name="step-increment">1</property>
-    <property name="page-increment">10</property>
-  </object>
-  <object class="GtkDialog" id="dialog-plugin-list">
-  <property name="transient-for">mainwindow</property>
-    <property name="default-width">320</property>
-    <property name="default-height">260</property>
-    <property name="hide-on-close">True</property>
-    <child>
-      <object class="GtkPaned">
-        <property name="position">200</property>s
-        <child>
-          <object class="GtkScrolledWindow" id="scrolled_window">
-            <property name="hexpand">True</property>
-            <property name="vexpand">True</property>
-            <child>
-              <object class="GtkTreeView" id="treeview-plugin-list"/>
-            </child>
-          </object>
-        </child>
-        <child>
-          <object class="GtkScrolledWindow">
-            <property name="hexpand">True</property>
-            <property name="vexpand">True</property>
-            <child>
-              <object class="GtkTextView" id="textview-plugin-list"/>
-            </child>
-          </object>
-        </child>
-      </object>
-    </child>
-  </object>
-  <object class="GtkDialog" id="dialog-plugin-properties">
-  <property name="transient-for">mainwindow</property>
-    <property name="default-width">320</property>
-    <property name="default-height">260</property>
-    <property name="hide-on-close">True</property>
-    <child>
-      <object class="GtkBox">
-        <property name="orientation">vertical</property>
-        <child>
-          <object class="GtkScrolledWindow">
-            <property name="hexpand">True</property>
-            <property name="vexpand">True</property>
-            <child>
-              <object class="GtkBox" id="box-plugin-properties">
-                <property name="orientation">vertical</property>
-              </object>
-            </child>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button-apply-plugin-properties">
-            <property name="halign">end</property>
-            <property name="hexpand">1</property>
-            <property name="receives-default">1</property>
-            <property name="label" translatable="yes">apply</property>
-          </object>
-        </child>
-      </object>
-    </child>
-  </object>
-  <object class="GtkApplicationWindow" id="mainwindow">
-    <property name="title" translatable="yes">GstPipelineStudio</property>
-    <property name="default-width">800</property>
-    <property name="default-height">600</property>
-    <child type="titlebar">
-          <object class="GtkHeaderBar" id="header-bar">
-            <child type="start">
-              <object class="GtkMenuButton" id="gear_menu_button">
-                <property name="valign">3</property>
-                <property name="focus-on-click">0</property>
-                <property name="popover">
-                  <object class="GtkPopoverMenu" id="gear_menu">
-                    <property name="menu-model">primary_menu</property>
-                  </object>
-                </property>
-                <property name="icon-name">open-menu-symbolic</property>
-              </object>
-            </child>
-          </object>
-    </child>
-    <child>
-      <object class="GtkBox">
-        <property name="orientation">vertical</property>
-        <property name="spacing">1</property>
-        <child>
-          <object class="GtkBox">
-            <property name="vexpand">0</property>
-            <child>
-              <object class="GtkBox">
-                <child>
-                  <object class="GtkButton" id="button-add-plugin">
-                    <property name="hexpand">1</property>
-                    <property name="label">gtk-add</property>
-                    <property name="receives-default">1</property>
-                    <property name="icon-name">list-add</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkButton" id="button-play">
-                    <property name="hexpand">1</property>
-                    <property name="receives-default">1</property>
-                    <property name="icon-name">media-playback-start-symbolic</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkButton" id="button-pause">
-                    <property name="hexpand">1</property>
-                    <property name="receives-default">1</property>
-                    <property name="icon-name">media-playback-pause-symbolic</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkButton" id="button-stop">
-                    <property name="hexpand">1</property>
-                    <property name="receives-default">1</property>
-                    <property name="icon-name">media-playback-stop-symbolic</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkButton" id="button-clear">
-                    <property name="hexpand">1</property>
-                    <property name="receives-default">1</property>
-                    <property name="icon-name">edit-clear</property>
-                  </object>
-                </child>
-              </object>
-            </child>
-          </object>
-        </child>
-        <child>
-          <object class="GtkScale" id="scale-position">
-            <property name="visible">True</property>
-            <property name="can-focus">True</property>
-            <property name="adjustment">scale_adjustment</property>
-            <property name="round-digits">1</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkPaned" id="graph_logs-paned">
-          <property name="orientation">vertical</property>
-          <property name="position">400</property>
-          <child>
-            <object class="GtkPaned" id="graph_favorites-paned">
-              <property name="position">600</property>
-              <property name="position-set">True</property>
-              <property name="hexpand">True</property>
-              <property name="vexpand">True</property>
-              <child>
-                <object class="GtkScrolledWindow" id="drawing_area-window">
-                  <property name="hexpand">True</property>
-                  <property name="vexpand">True</property>
-                  <property name="child">
-                    <object class="GtkViewport" id="drawing_area">
-                      <child>
-                        <placeholder/>
-                      </child>
-                    </object>
-                  </property>
-                </object>
-              </child>
-              <child>
-                <object class="GtkScrolledWindow">
-                  <property name="hexpand">True</property>
-                  <property name="vexpand">True</property>
-                  <property name="child">
-                    <object class="GtkTreeView" id="treeview-favorites">
-                    </object>
-                  </property>
-                </object>
-              </child>
-            </object>
-          </child>
-          <child>
-            <object class="GtkScrolledWindow">
-              <property name="child">
-                <object class="GtkTreeView" id="treeview-logger"/>
-              </property>
-            </object>
-          </child>
-          </object>
-        </child>
-    <child>
-      <object class="GtkStatusbar" id="status_bar">
-      </object>
-    </child>
-    </object>
-    </child>
-  </object>
-</interface>

src/gps/element.rs

@@ -0,0 +1,305 @@
+// element.rs
+//
+// Copyright 2022 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GstPipelineStudio
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+use crate::gps::PadInfo;
+use crate::graphmanager::{NodeType, PortDirection, PortPresence};
+use crate::logger;
+use crate::GPS_INFO;
+
+use gst::glib;
+use gst::prelude::*;
+use std::collections::HashMap;
+use std::fmt::Write as _;
+
+#[derive(Debug, Default, Eq, Ord, PartialEq, PartialOrd)]
+pub struct ElementInfo {
+    pub name: String,
+    plugin_name: String,
+    rank: i32,
+}
+
+impl ElementInfo {
+    pub fn elements_list() -> anyhow::Result<Vec<ElementInfo>> {
+        let registry = gst::Registry::get();
+        let mut elements: Vec<ElementInfo> = Vec::new();
+        let plugins = gst::Registry::plugins(&registry);
+        for plugin in plugins {
+            let plugin_name = gst::Plugin::plugin_name(&plugin);
+            let features = gst::Registry::features_by_plugin(&registry, &plugin_name);
+            for feature in features {
+                let mut element = ElementInfo::default();
+                if let Ok(factory) = feature.downcast::<gst::ElementFactory>() {
+                    let feature = factory.upcast::<gst::PluginFeature>();
+
+                    element.name = gst::PluginFeature::name(&feature).as_str().to_owned();
+                    element.plugin_name = gst::Plugin::plugin_name(&plugin).as_str().to_owned();
+                    elements.push(element);
+                }
+            }
+        }
+        elements.sort();
+        Ok(elements)
+    }
+
+    pub fn element_factory_exists(element_name: &str) -> bool {
+        match ElementInfo::element_feature(element_name) {
+            Some(_feature) => {
+                GPS_DEBUG!("Found element factory name {}", element_name);
+                true
+            }
+            None => {
+                GPS_ERROR!("Unable to find element factory name {}", element_name);
+                false
+            }
+        }
+    }
+
+    pub fn element_feature(element_name: &str) -> Option<gst::PluginFeature> {
+        let registry = gst::Registry::get();
+        gst::Registry::find_feature(&registry, element_name, gst::ElementFactory::static_type())
+    }
+
+    pub fn element_update_rank(element_name: &str, rank: gst::Rank) {
+        let feature: Option<gst::PluginFeature> = ElementInfo::element_feature(element_name);
+        if let Some(feature) = feature {
+            feature.set_rank(rank);
+        }
+    }
+
+    pub fn element_description(element_name: &str) -> anyhow::Result<String> {
+        let mut desc = String::from("");
+        if !ElementInfo::element_factory_exists(element_name) {
+            desc.push_str("<b>Factory details:</b>\n");
+            desc.push_str("<b>Name:</b>");
+            desc.push_str(element_name);
+            desc.push('\n');
+            desc.push('\n');
+            desc.push_str("Factory unavailable.");
+        } else {
+            let feature = ElementInfo::element_feature(element_name)
+                .ok_or_else(|| glib::bool_error!("Failed get element feature"))?;
+            let rank = feature.rank();
+            if let Ok(factory) = feature.downcast::<gst::ElementFactory>() {
+                desc.push_str("<b>Factory details:</b>\n");
+                desc.push_str("<b>Rank:</b>");
+                let _ = write!(desc, "{rank:?}",);
+                desc.push('\n');
+                desc.push_str("<b>Name:</b>");
+                desc.push_str(&factory.name());
+                desc.push('\n');
+
+                let element_keys = factory.metadata_keys();
+                for key in element_keys {
+                    let val = factory.metadata(&key);
+                    if let Some(val) = val {
+                        desc.push_str("<b>");
+                        desc.push_str(&key);
+                        desc.push_str("</b>:");
+                        desc.push_str(&gtk::glib::markup_escape_text(val));
+                        desc.push('\n');
+                    }
+                }
+                let feature = factory.upcast::<gst::PluginFeature>();
+                let plugin = gst::PluginFeature::plugin(&feature);
+                if let Some(plugin) = plugin {
+                    desc.push('\n');
+                    desc.push_str("<b>Plugin details:</b>");
+                    desc.push('\n');
+                    desc.push_str("<b>Name:");
+                    desc.push_str("</b>");
+                    desc.push_str(gst::Plugin::plugin_name(&plugin).as_str());
+                    desc.push('\n');
+                    desc.push_str("<b>Description:");
+                    desc.push_str("</b>");
+                    desc.push_str(&gtk::glib::markup_escape_text(&plugin.description()));
+                    desc.push('\n');
+                    desc.push_str("<b>Filename:");
+                    desc.push_str("</b>");
+                    desc.push_str(&gtk::glib::markup_escape_text(
+                        &plugin
+                            .filename()
+                            .unwrap_or_default()
+                            .as_path()
+                            .display()
+                            .to_string(),
+                    ));
+                    desc.push('\n');
+                    desc.push_str("<b>Version:");
+                    desc.push_str("</b>");
+                    desc.push_str(&gtk::glib::markup_escape_text(&plugin.version()));
+                    desc.push('\n');
+                }
+            }
+        }
+        Ok(desc)
+    }
+
+    pub fn element_type(element_name: &str) -> NodeType {
+        let (inputs, outputs) = PadInfo::pads(element_name, true);
+        let mut element_type = NodeType::Source;
+        if !inputs.is_empty() {
+            if !outputs.is_empty() {
+                element_type = NodeType::Transform;
+            } else {
+                element_type = NodeType::Sink;
+            }
+        } else if !outputs.is_empty() {
+            element_type = NodeType::Source;
+        }
+
+        element_type
+    }
+
+    pub fn element_property(element: &gst::Element, property_name: &str) -> anyhow::Result<String> {
+        let value = element.property_value(property_name);
+        if value.type_().is_a(glib::Type::ENUM) {
+            let value = value.get::<&glib::EnumValue>().unwrap().nick().to_string();
+            Ok(value)
+        } else if value.type_().is_a(glib::Type::FLAGS) {
+            let value = value.get::<Vec<&glib::FlagsValue>>().unwrap();
+            let flags = value.iter().copied().fold(0, |acc, val| acc | val.value());
+            Ok(flags.to_string())
+        } else if value.type_().is_a(glib::Type::F64) || value.type_().is_a(glib::Type::F32) {
+            let value = value
+                .transform::<String>()
+                .expect("Unable to transform to string")
+                .get::<String>()
+                .unwrap()
+                .replace(',', ".");
+            Ok(value)
+        } else {
+            let value = value
+                .transform::<String>()
+                .expect("Unable to transform to string")
+                .get::<String>()
+                .unwrap_or_default()
+                .to_lowercase();
+            Ok(value)
+        }
+    }
+
+    pub fn element_property_by_feature_name(
+        element_name: &str,
+        property_name: &str,
+    ) -> anyhow::Result<String> {
+        let feature = ElementInfo::element_feature(element_name).expect("Unable to get feature");
+        let factory = feature
+            .downcast::<gst::ElementFactory>()
+            .expect("Unable to get the factory from the feature");
+        let element = factory.create().build()?;
+        ElementInfo::element_property(&element, property_name)
+    }
+
+    pub fn element_properties(
+        element: &gst::Element,
+    ) -> anyhow::Result<HashMap<String, glib::ParamSpec>> {
+        let mut properties_list = HashMap::new();
+        let params = element.list_properties();
+
+        for param in params.iter() {
+            GPS_INFO!("Property_name {}", param.name());
+            if param.flags().contains(glib::ParamFlags::READABLE) {
+                match element.property_value(param.name()).transform::<String>() {
+                    Ok(value) => {
+                        GPS_INFO!(
+                            "Property_name {}={} type={:?}",
+                            param.name(),
+                            value.get::<String>().unwrap_or_default(),
+                            param.type_()
+                        );
+                        properties_list.insert(String::from(param.name()), param.clone());
+                    }
+                    Err(_e) => {
+                        GPS_ERROR!("Unable to convert the param {} to string ", param.name())
+                    }
+                }
+            } else {
+                GPS_ERROR!("The param {} is not readable", param.name())
+            }
+        }
+        Ok(properties_list)
+    }
+
+    pub fn element_properties_by_feature_name(
+        element_name: &str,
+    ) -> anyhow::Result<HashMap<String, glib::ParamSpec>> {
+        let feature = ElementInfo::element_feature(element_name).expect("Unable to get feature");
+
+        let factory = feature
+            .downcast::<gst::ElementFactory>()
+            .expect("Unable to get the factory from the feature");
+        let element = factory.create().build()?;
+        ElementInfo::element_properties(&element)
+    }
+
+    pub fn element_is_uri_src_handler(element_name: &str) -> bool {
+        let feature = ElementInfo::element_feature(element_name).expect("Unable to get feature");
+
+        let factory = feature
+            .downcast::<gst::ElementFactory>()
+            .expect("Unable to get the factory from the feature");
+        let element = factory
+            .create()
+            .build()
+            .expect("Unable to create an element from the feature");
+        match element.dynamic_cast::<gst::URIHandler>() {
+            Ok(uri_handler) => uri_handler.uri_type() == gst::URIType::Src,
+            Err(_e) => false,
+        }
+    }
+
+    pub fn element_supports_new_pad_request(
+        element_name: &str,
+        direction: PortDirection,
+    ) -> Option<PadInfo> {
+        let (inputs, outputs) = PadInfo::pads(element_name, true);
+        if direction == PortDirection::Input {
+            for input in inputs {
+                if input.presence() == PortPresence::Sometimes {
+                    return Some(input);
+                }
+            }
+        } else if direction == PortDirection::Output {
+            for output in outputs {
+                if output.presence() == PortPresence::Sometimes {
+                    return Some(output);
+                }
+            }
+        } else {
+            GPS_ERROR!("Port direction unknown");
+        }
+        None
+    }
+
+    pub fn search_for_element(bin: &gst::Bin, element_name: &str) -> Vec<gst::Element> {
+        let mut iter = bin.iterate_elements();
+        let mut elements: Vec<gst::Element> = Vec::new();
+        elements = loop {
+            match iter.next() {
+                Ok(Some(element)) => {
+                    if element.is::<gst::Bin>() {
+                        let bin = element.dynamic_cast::<gst::Bin>().unwrap();
+                        let mut bin_elements = ElementInfo::search_for_element(&bin, element_name);
+                        elements.append(&mut bin_elements);
+                    } else {
+                        GPS_INFO!("Found factory: {}", element.factory().unwrap().name());
+                        if element.factory().unwrap().name() == element_name
+                            || element_name.is_empty()
+                        {
+                            GPS_INFO!("Found {}", element_name);
+                            elements.push(element);
+                        }
+                    }
+                }
+                Err(gst::IteratorError::Resync) => iter.resync(),
+                _ => break elements,
+            }
+        };
+        elements
+    }
+}

src/gps/mod.rs

@@ -0,0 +1,7 @@
+mod element;
+mod pad;
+mod player;
+
+pub use element::ElementInfo;
+pub use pad::PadInfo;
+pub use player::{PipelineState, Player};

src/gps/pad.rs

@@ -0,0 +1,93 @@
+// pad.rs
+//
+// Copyright 2022 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GstPipelineStudio
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+use crate::logger;
+
+use crate::gps::ElementInfo;
+use crate::graphmanager::{PortDirection, PortPresence};
+
+use gst::prelude::*;
+
+#[derive(Debug, PartialOrd, PartialEq, Eq)]
+pub struct PadInfo {
+    name: Option<String>,
+    element_name: Option<String>,
+    direction: PortDirection,
+    presence: PortPresence,
+    caps: Option<String>,
+}
+
+impl Default for PadInfo {
+    fn default() -> PadInfo {
+        PadInfo {
+            name: None,
+            element_name: None,
+            direction: PortDirection::Unknown,
+            presence: PortPresence::Unknown,
+            caps: None,
+        }
+    }
+}
+impl PadInfo {
+    pub fn presence(&self) -> PortPresence {
+        self.presence
+    }
+
+    fn pad_to_port_presence(presence: gst::PadPresence) -> PortPresence {
+        match presence {
+            gst::PadPresence::Always => PortPresence::Always,
+            gst::PadPresence::Sometimes => PortPresence::Sometimes,
+            gst::PadPresence::Request => PortPresence::Sometimes,
+        }
+    }
+
+    pub fn caps(&self) -> &str {
+        self.caps.as_ref().unwrap()
+    }
+
+    pub fn pads(element_name: &str, include_on_request: bool) -> (Vec<PadInfo>, Vec<PadInfo>) {
+        let mut input = vec![];
+        let mut output = vec![];
+        if let Some(feature) = ElementInfo::element_feature(element_name) {
+            if let Ok(factory) = feature.downcast::<gst::ElementFactory>() {
+                if factory.num_pad_templates() > 0 {
+                    let pads = factory.static_pad_templates();
+                    for pad in pads {
+                        GPS_TRACE!("Found a pad name {}", pad.name_template());
+                        if pad.presence() == gst::PadPresence::Always
+                            || (include_on_request
+                                && (pad.presence() == gst::PadPresence::Request
+                                    || pad.presence() == gst::PadPresence::Sometimes))
+                        {
+                            if pad.direction() == gst::PadDirection::Src {
+                                output.push(PadInfo {
+                                    name: Some(pad.name_template().to_string()),
+                                    element_name: Some(element_name.to_string()),
+                                    direction: PortDirection::Output,
+                                    presence: PadInfo::pad_to_port_presence(pad.presence()),
+                                    caps: Some(pad.caps().to_string()),
+                                });
+                            } else if pad.direction() == gst::PadDirection::Sink {
+                                input.push(PadInfo {
+                                    name: Some(pad.name_template().to_string()),
+                                    element_name: Some(element_name.to_string()),
+                                    direction: PortDirection::Input,
+                                    presence: PadInfo::pad_to_port_presence(pad.presence()),
+                                    caps: Some(pad.caps().to_string()),
+                                });
+                            }
+                        }
+                    }
+                }
+            }
+            (input, output)
+        } else {
+            (input, output)
+        }
+    }
+}

src/gps/player.rs

@@ -0,0 +1,568 @@
+// player.rs
+//
+// Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GstPipelineStudio
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+use crate::app::{AppState, GPSApp, GPSAppWeak};
+use crate::graphmanager as GM;
+use crate::graphmanager::PropertyExt;
+
+use crate::common;
+use crate::gps::ElementInfo;
+use crate::logger;
+use crate::settings;
+use crate::GPS_INFO;
+
+use gst::glib;
+use gst::prelude::*;
+use gtk::gdk;
+use std::cell::{Cell, RefCell};
+use std::collections::HashMap;
+use std::fmt;
+use std::fmt::Write as _;
+use std::ops;
+use std::rc::{Rc, Weak};
+
+#[derive(Default, Debug, Clone, Copy, PartialEq, Eq)]
+pub enum PipelineState {
+    Playing,
+    Paused,
+    #[default]
+    Stopped,
+    Error,
+}
+
+impl fmt::Display for PipelineState {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{self:?}")
+    }
+}
+
+#[derive(Debug, Clone, Default)]
+pub struct Player(Rc<PlayerInner>);
+
+// Deref into the contained struct to make usage a bit more ergonomic
+impl ops::Deref for Player {
+    type Target = PlayerInner;
+
+    fn deref(&self) -> &PlayerInner {
+        &self.0
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct PlayerWeak(Weak<PlayerInner>);
+
+impl PlayerWeak {
+    pub fn upgrade(&self) -> Option<Player> {
+        self.0.upgrade().map(Player)
+    }
+}
+
+fn gst_log_handler(
+    category: gst::DebugCategory,
+    level: gst::DebugLevel,
+    file: &glib::GStr,
+    function: &glib::GStr,
+    line: u32,
+    _obj: Option<&gst::LoggedObject>,
+    message: &gst::DebugMessage,
+) {
+    let log_message = format!(
+        "{}\t{}\t{}:{}:{}\t{}",
+        level,
+        category.name(),
+        line,
+        file.as_str(),
+        function.as_str(),
+        message.get().unwrap().as_str()
+    );
+
+    GPS_GST_LOG!("{}", log_message);
+}
+
+#[derive(Debug, Default)]
+pub struct PlayerInner {
+    app: RefCell<Option<GPSApp>>,
+    pipeline: RefCell<Option<gst::Pipeline>>,
+    current_state: Cell<PipelineState>,
+    n_video_sink: Cell<usize>,
+    bus_watch_guard: RefCell<Option<gst::bus::BusWatchGuard>>,
+}
+
+impl Player {
+    pub fn new() -> anyhow::Result<Self> {
+        let pipeline = Player(Rc::new(PlayerInner {
+            app: RefCell::new(None),
+            pipeline: RefCell::new(None),
+            current_state: Cell::new(PipelineState::Stopped),
+            n_video_sink: Cell::new(0),
+            bus_watch_guard: RefCell::new(None),
+        }));
+        gst::log::add_log_function(gst_log_handler);
+        Ok(pipeline)
+    }
+
+    pub fn get_version() -> String {
+        gst::version_string().to_string()
+    }
+
+    pub fn set_app(&self, app: GPSAppWeak) {
+        *self.app.borrow_mut() = Some(app.upgrade().unwrap());
+    }
+
+    pub fn create_pipeline(&self, description: &str) -> anyhow::Result<gst::Pipeline> {
+        GPS_INFO!("Creating pipeline {}", description);
+        self.n_video_sink.set(0);
+        if settings::Settings::load_settings()
+            .preferences
+            .get("use_gtk4_sink")
+            .unwrap_or(&"true".to_string())
+            .parse::<bool>()
+            .expect("Should a boolean value")
+        {
+            ElementInfo::element_update_rank("gtk4paintablesink", gst::Rank::PRIMARY);
+        } else {
+            ElementInfo::element_update_rank("gtk4paintablesink", gst::Rank::MARGINAL);
+        }
+        gst::log::set_threshold_from_string(settings::Settings::gst_log_level().as_str(), true);
+        // Create pipeline from the description
+        let pipeline = gst::parse::launch(description)?;
+        let pipeline = pipeline.downcast::<gst::Pipeline>();
+        /* start playing */
+        if pipeline.is_err() {
+            GPS_ERROR!("Can not create a proper pipeline from gstreamer parse_launch");
+            return Err(anyhow::anyhow!(
+                "Unable to create a pipeline from the given parse launch"
+            ));
+        }
+        self.check_for_gtk4sink(pipeline.as_ref().unwrap());
+        // GPSApp is not Send(trait) ready , so we use a channel to exchange the given data with the main thread and use
+        // GPSApp.
+        let (ready_tx, ready_rx) = async_channel::unbounded::<gst::Element>();
+        let player_weak = self.downgrade();
+        glib::spawn_future_local(async move {
+            while let Ok(element) = ready_rx.recv().await {
+                let player = upgrade_weak!(player_weak, glib::ControlFlow::Break);
+                let paintable = element.property::<gdk::Paintable>("paintable");
+                let n_sink = player.n_video_sink.get();
+                player
+                    .app
+                    .borrow()
+                    .as_ref()
+                    .expect("App should be available")
+                    .set_app_preview(&paintable, n_sink);
+                player.n_video_sink.set(n_sink + 1);
+            }
+            glib::ControlFlow::Continue
+        });
+        let bin = pipeline.unwrap().dynamic_cast::<gst::Bin>();
+        if let Ok(bin) = bin.as_ref() {
+            bin.connect_deep_element_added(move |_, _, element| {
+                if let Some(factory) = element.factory() {
+                    GPS_INFO!("Received the signal deep element added {}", factory.name());
+                    if factory.name() == "gtk4paintablesink" {
+                        let _ = ready_tx.try_send(element.clone());
+                    }
+                }
+            });
+        }
+        let pipeline = bin.unwrap().dynamic_cast::<gst::Pipeline>();
+        Ok(pipeline.unwrap())
+    }
+
+    pub fn check_for_gtk4sink(&self, pipeline: &gst::Pipeline) {
+        let bin = pipeline.clone().dynamic_cast::<gst::Bin>().unwrap();
+        let gtksinks = ElementInfo::search_for_element(&bin, "gtk4paintablesink");
+
+        for (first_sink, gtksink) in gtksinks.into_iter().enumerate() {
+            let paintable = gtksink.property::<gdk::Paintable>("paintable");
+            self.app
+                .borrow()
+                .as_ref()
+                .expect("App should be available")
+                .set_app_preview(&paintable, first_sink);
+        }
+    }
+
+    pub fn start_pipeline(
+        &self,
+        graphview: &GM::GraphView,
+        new_state: PipelineState,
+    ) -> anyhow::Result<PipelineState> {
+        if self.state() == PipelineState::Stopped || self.state() == PipelineState::Error {
+            let pipeline = self
+                .create_pipeline(&self.pipeline_description_from_graphview(graphview))
+                .map_err(|err| {
+                    GPS_ERROR!("Unable to create a pipeline: {}", err);
+                    err
+                })?;
+
+            let bus = pipeline.bus().expect("Pipeline had no bus");
+            let pipeline_weak = self.downgrade();
+            let bus_watch_guard = bus.add_watch_local(move |_bus, msg| {
+                let pipeline = upgrade_weak!(pipeline_weak, glib::ControlFlow::Break);
+                pipeline.on_pipeline_message(msg);
+                glib::ControlFlow::Continue
+            })?;
+            *self.pipeline.borrow_mut() = Some(pipeline);
+            *self.bus_watch_guard.borrow_mut() = Some(bus_watch_guard);
+        }
+
+        self.set_state(new_state).map_err(|error| {
+            GPS_ERROR!("Unable to change state {}", error);
+            error
+        })?;
+
+        Ok(self.state())
+    }
+
+    pub fn set_state(&self, new_state: PipelineState) -> anyhow::Result<PipelineState> {
+        if let Some(pipeline) = self.pipeline.borrow().to_owned() {
+            match new_state {
+                PipelineState::Playing => pipeline.set_state(gst::State::Playing)?,
+                PipelineState::Paused => pipeline.set_state(gst::State::Paused)?,
+                PipelineState::Stopped | PipelineState::Error => {
+                    pipeline.set_state(gst::State::Null)?;
+                    self.n_video_sink.set(0);
+                    gst::StateChangeSuccess::Success
+                }
+            };
+            self.current_state.set(new_state);
+            self.app
+                .borrow()
+                .as_ref()
+                .expect("App should be available")
+                .set_app_state(Player::state_to_app_state(new_state));
+        }
+        Ok(new_state)
+    }
+
+    pub fn state(&self) -> PipelineState {
+        self.current_state.get()
+    }
+
+    pub fn set_position(&self, position: u64) -> anyhow::Result<()> {
+        if let Some(pipeline) = self.pipeline.borrow().to_owned() {
+            pipeline.seek_simple(
+                gst::SeekFlags::FLUSH | gst::SeekFlags::KEY_UNIT,
+                position * gst::ClockTime::SECOND,
+            )?;
+        }
+        Ok(())
+    }
+
+    pub fn position(&self) -> u64 {
+        let mut position = gst::ClockTime::NONE;
+        if let Some(pipeline) = self.pipeline.borrow().to_owned() {
+            position = pipeline.query_position::<gst::ClockTime>();
+        }
+        position.unwrap_or_default().mseconds()
+    }
+
+    pub fn duration(&self) -> u64 {
+        let mut duration = gst::ClockTime::NONE;
+        if let Some(pipeline) = self.pipeline.borrow().to_owned() {
+            duration = pipeline.query_duration::<gst::ClockTime>();
+        }
+        duration.unwrap_or_default().mseconds()
+    }
+
+    pub fn position_description(&self) -> String {
+        let mut position = gst::ClockTime::NONE;
+        let mut duration = gst::ClockTime::NONE;
+        if let Some(pipeline) = self.pipeline.borrow().to_owned() {
+            position = pipeline.query_position::<gst::ClockTime>();
+            duration = pipeline.query_duration::<gst::ClockTime>();
+        }
+        format!(
+            "{:.0}/{:.0}",
+            position.unwrap_or_default().display(),
+            duration.unwrap_or_default().display(),
+        )
+    }
+
+    fn state_to_app_state(state: PipelineState) -> AppState {
+        match state {
+            PipelineState::Playing => AppState::Playing,
+            PipelineState::Paused => AppState::Paused,
+            PipelineState::Stopped => AppState::Stopped,
+            PipelineState::Error => AppState::Error,
+        }
+    }
+
+    pub fn playing(&self) -> bool {
+        self.state() == PipelineState::Playing || self.state() == PipelineState::Paused
+    }
+    pub fn n_video_sink(&self) -> usize {
+        self.n_video_sink.get()
+    }
+
+    pub fn downgrade(&self) -> PlayerWeak {
+        PlayerWeak(Rc::downgrade(&self.0))
+    }
+
+    fn on_pipeline_message(&self, msg: &gst::MessageRef) {
+        use gst::MessageView;
+        if let Some(message) = msg.structure() {
+            GPS_MSG_LOG!("{:?}", message);
+        }
+        match msg.view() {
+            MessageView::Eos(_) => {
+                GPS_INFO!("EOS received");
+                self.set_state(PipelineState::Stopped)
+                    .expect("Unable to set state to stopped");
+            }
+            MessageView::Error(err) => {
+                GPS_ERROR!(
+                    "Error from {:?}: {} ({:?})",
+                    err.src().map(|s| s.path_string()),
+                    err.error(),
+                    err.debug()
+                );
+                self.set_state(PipelineState::Error)
+                    .expect("Unable to set state to Error");
+            }
+            MessageView::Application(msg) => match msg.structure() {
+                // Here we can send ourselves messages from any thread and show them to the user in
+                // the UI in case something goes wrong
+                Some(s) if s.name() == "warning" => {
+                    let text = s.get::<&str>("text").expect("Warning message without text");
+                    GPS_WARN!("{}", text);
+                }
+                _ => (),
+            },
+            _ => (),
+        };
+    }
+
+    pub fn pipeline_elements(&self) -> Option<Vec<String>> {
+        if self.playing() {
+            let bin = self
+                .pipeline
+                .borrow()
+                .clone()
+                .unwrap()
+                .dynamic_cast::<gst::Bin>()
+                .unwrap();
+            let elements_name: Vec<String> = ElementInfo::search_for_element(&bin, "")
+                .iter()
+                .map(|e| e.factory().unwrap().name().to_string())
+                .collect();
+            return Some(elements_name);
+        }
+        None
+    }
+
+    // Render graph methods
+    #[allow(clippy::only_used_in_recursion)]
+    fn process_gst_node(
+        &self,
+        graphview: &GM::GraphView,
+        node: &GM::Node,
+        elements: &mut HashMap<String, String>,
+        mut description: String,
+    ) -> String {
+        let unique_name = node.unique_name();
+        let _ = write!(description, "{} name={} ", node.name(), unique_name);
+        elements.insert(unique_name.clone(), unique_name.clone());
+        // Node properties
+        for (name, value) in node.properties().iter() {
+            //This allow to have an index in front of a property such as an enum.
+            if !node.hidden_property(name) {
+                let _ = write!(description, "{name}={value} ");
+            }
+        }
+        //Port properties
+        let ports = node.all_ports(GM::PortDirection::All);
+        for port in ports {
+            for (name, value) in port.properties().iter() {
+                if !port.hidden_property(name) {
+                    let _ = write!(description, "{}::{}={} ", port.name(), name, value);
+                }
+            }
+        }
+
+        let ports = node.all_ports(GM::PortDirection::Output);
+        let n_ports = ports.len();
+        for port in ports {
+            if let Some((_port_to, node_to)) = graphview.port_connected_to(port.id()) {
+                if n_ports > 1 {
+                    let _ = write!(description, "{unique_name}. ! ");
+                } else {
+                    if let Some(link) = graphview.port_link(port.id()) {
+                        if !link.name().is_empty() {
+                            let _ = write!(description, "! {} ", link.name());
+                        }
+                    }
+                    description.push_str("! ");
+                }
+                if let Some(node) = graphview.node(node_to) {
+                    if elements.contains_key(&node.unique_name()) {
+                        let _ = write!(description, "{}. ", node.unique_name());
+                    } else {
+                        description =
+                            self.process_gst_node(graphview, &node, elements, description.clone());
+                    }
+                }
+            }
+        }
+        description
+    }
+
+    pub fn pipeline_description_from_graphview(&self, graphview: &GM::GraphView) -> String {
+        let source_nodes = graphview.all_nodes(GM::NodeType::Source);
+        let mut elements: HashMap<String, String> = HashMap::new();
+        let mut description = String::from("");
+        for source_node in source_nodes {
+            description =
+                self.process_gst_node(graphview, &source_node, &mut elements, description.clone());
+        }
+        description
+    }
+
+    pub fn create_links_for_element(&self, element: &gst::Element, graphview: &GM::GraphView) {
+        let mut iter = element.iterate_pads();
+        let node = graphview
+            .node_by_unique_name(&element.name())
+            .expect("node should exists");
+
+        loop {
+            match iter.next() {
+                Ok(Some(pad)) => {
+                    GPS_INFO!("Found pad: {}", pad.name());
+
+                    if pad.direction() == gst::PadDirection::Src {
+                        let port = node
+                            .port_by_name(&pad.name())
+                            .expect("The port should exist here");
+                        if let Some(peer_pad) = pad.peer() {
+                            if let Some(peer_element) = peer_pad.parent_element() {
+                                let peer_node = graphview
+                                    .node_by_unique_name(&peer_element.name())
+                                    .expect("The node should exists here");
+                                let peer_port = peer_node
+                                    .port_by_name(&peer_pad.name())
+                                    .expect("The port should exists here");
+                                self.app.borrow().as_ref().unwrap().create_link(
+                                    node.id(),
+                                    peer_node.id(),
+                                    port.id(),
+                                    peer_port.id(),
+                                );
+                            }
+                        }
+                    }
+                }
+                Err(gst::IteratorError::Resync) => iter.resync(),
+                _ => break,
+            }
+        }
+    }
+
+    pub fn create_pads_for_element(&self, element: &gst::Element, node: &GM::Node) {
+        let mut iter = element.iterate_pads();
+        loop {
+            match iter.next() {
+                Ok(Some(pad)) => {
+                    let pad_name = pad.name().to_string();
+                    GPS_INFO!("Found pad: {}", pad_name);
+                    let mut port_direction = GM::PortDirection::Input;
+                    if pad.direction() == gst::PadDirection::Src {
+                        port_direction = GM::PortDirection::Output;
+                    }
+                    let port_id = self.app.borrow().as_ref().unwrap().create_port_with_caps(
+                        node.id(),
+                        port_direction,
+                        GM::PortPresence::Always,
+                        pad.current_caps()
+                            .unwrap_or_else(|| pad.query_caps(None))
+                            .to_string(),
+                    );
+                    if let Some(port) = node.port(port_id) {
+                        port.set_name(&pad_name);
+                    }
+                }
+                Err(gst::IteratorError::Resync) => iter.resync(),
+                _ => break,
+            }
+        }
+    }
+
+    pub fn create_properties_for_element(&self, element: &gst::Element, node: &GM::Node) {
+        let properties = ElementInfo::element_properties(element)
+            .unwrap_or_else(|_| panic!("Couldn't get properties for {}", node.name()));
+        for (property_name, property_value) in properties {
+            if property_name == "name"
+                || property_name == "parent"
+                || (property_value.flags() & glib::ParamFlags::READABLE)
+                    != glib::ParamFlags::READABLE
+            {
+                continue;
+            }
+
+            if let Ok(value_str) = ElementInfo::element_property(element, &property_name) {
+                let default_value_str =
+                    common::value_as_str(property_value.default_value()).unwrap_or_default();
+                GPS_DEBUG!(
+                    "property name {} value_str '{}' default '{}'",
+                    property_name,
+                    value_str,
+                    default_value_str
+                );
+                if !value_str.is_empty() && value_str != default_value_str {
+                    node.add_property(&property_name, &value_str);
+                }
+            }
+        }
+    }
+
+    pub fn graphview_from_pipeline_description(
+        &self,
+        graphview: &GM::GraphView,
+        pipeline_desc: &str,
+    ) {
+        graphview.clear();
+
+        if let Ok(pipeline) = self.create_pipeline(pipeline_desc) {
+            let mut iter = pipeline.iterate_elements();
+            let mut elements: Vec<gst::Element> = Vec::new();
+            let elements = loop {
+                match iter.next() {
+                    Ok(Some(element)) => {
+                        GPS_INFO!("Found element: {}", element.name());
+                        let element_factory_name = element.factory().unwrap().name().to_string();
+                        let node = graphview.create_node(
+                            &element_factory_name,
+                            ElementInfo::element_type(&element_factory_name),
+                        );
+                        node.set_unique_name(&element.name());
+                        graphview.add_node(node.clone());
+                        self.create_pads_for_element(&element, &node);
+                        self.create_properties_for_element(&element, &node);
+                        elements.push(element);
+                    }
+                    Err(gst::IteratorError::Resync) => iter.resync(),
+                    _ => break elements,
+                }
+            };
+            for element in elements {
+                self.create_links_for_element(&element, graphview);
+            }
+        } else {
+            GPS_ERROR!("Unable to create a pipeline: {}", pipeline_desc);
+        }
+    }
+}
+
+impl Drop for PlayerInner {
+    fn drop(&mut self) {
+        if let Some(pipeline) = self.pipeline.borrow().to_owned() {
+            // We ignore any errors here
+            let _ = pipeline.set_state(gst::State::Null);
+        }
+    }
+}

src/gps/test.rs

@@ -0,0 +1,58 @@
+use crate::gps::player::Player;
+use crate::graphmanager as GM;
+
+#[cfg(test)]
+fn test_synced<F, R>(function: F) -> R
+where
+    F: FnOnce() -> R + Send + std::panic::UnwindSafe + 'static,
+    R: Send + 'static,
+{
+    /// No-op.
+    macro_rules! skip_assert_initialized {
+        () => {};
+    }
+    skip_assert_initialized!();
+
+    use futures_channel::oneshot;
+    use std::panic;
+
+    let (tx, rx) = oneshot::channel();
+    TEST_THREAD_WORKER
+        .push(move || {
+            tx.send(panic::catch_unwind(function))
+                .unwrap_or_else(|_| panic!("Failed to return result from thread pool"));
+        })
+        .expect("Failed to schedule a test call");
+    futures_executor::block_on(rx)
+        .expect("Failed to receive result from thread pool")
+        .unwrap_or_else(|e| std::panic::resume_unwind(e))
+}
+
+#[cfg(test)]
+static TEST_THREAD_WORKER: once_cell::sync::Lazy<gtk::glib::ThreadPool> =
+    once_cell::sync::Lazy::new(|| {
+        let pool = gtk::glib::ThreadPool::exclusive(1).unwrap();
+        pool.push(move || {
+            gtk::init().expect("Tests failed to initialize gtk");
+        })
+        .expect("Failed to schedule a test call");
+        pool
+    });
+
+#[cfg(test)]
+mod player_test {
+    use super::*;
+    fn check_pipeline(pipeline_desc: &str) {
+        let player = Player::new().expect("Not able to create the player");
+        let graphview = GM::GraphView::new();
+        player.graphview_from_pipeline_description(&graphview, pipeline_desc);
+    }
+
+    #[test]
+    fn pipeline_creation() {
+        test_synced(|| {
+            println!("coucou");
+            //check_pipeline("videotestsrc ! autovideosink");
+        });
+    }
+}

src/graphbook.rs

@@ -0,0 +1,503 @@
+// graphbook.rs
+//
+// Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GstPipelineStudio
+//
+// SPDX-License-Identifier: GPL-3.0-only
+use crate::app::{GPSApp, GPSAppWeak};
+use crate::gps as GPS;
+use crate::graphmanager as GM;
+use crate::graphmanager::PropertyExt;
+use crate::logger;
+use crate::settings::Settings;
+use crate::ui as GPSUI;
+use crate::{GPS_DEBUG, GPS_TRACE, GPS_WARN};
+use glib::Value;
+use gtk::prelude::*;
+use gtk::{gio, glib, graphene};
+use std::cell::{Cell, Ref, RefCell};
+use std::path::Path;
+
+#[derive(Debug, Clone, Copy, PartialEq, Default)]
+enum TabState {
+    #[default]
+    Undefined = 0,
+    Modified,
+    Saved,
+}
+#[derive(Debug, Clone, Default)]
+pub struct GraphTab {
+    graphview: RefCell<GM::GraphView>,
+    player: RefCell<GPS::Player>,
+    id: Cell<u32>,
+    name: gtk::Label,
+    filename: RefCell<String>,
+    state: Cell<TabState>,
+}
+
+impl GraphTab {
+    pub fn new(app: GPSAppWeak, id: u32, filename: &str) -> Self {
+        let label = gtk::Label::new(Some("Untitled*"));
+        let graphtab = GraphTab {
+            id: Cell::new(id),
+            graphview: RefCell::new(GM::GraphView::new()),
+            player: RefCell::new(
+                GPS::Player::new().expect("Unable to initialize GStreamer subsystem"),
+            ),
+            name: label,
+            filename: RefCell::new(filename.to_string()),
+            state: Cell::new(TabState::Undefined),
+        };
+        graphtab
+            .graphview
+            .borrow()
+            .set_id(graphbook_get_new_graphview_id(&app));
+        graphtab.player.borrow().set_app(app);
+        graphtab
+    }
+
+    pub fn id(&self) -> u32 {
+        self.id.get()
+    }
+
+    pub fn widget_label(&self) -> &gtk::Label {
+        &self.name
+    }
+
+    pub fn graphview(&self) -> Ref<GM::GraphView> {
+        self.graphview.borrow()
+    }
+
+    pub fn player(&self) -> Ref<GPS::Player> {
+        self.player.borrow()
+    }
+
+    pub fn set_name(&self, name: &str) {
+        self.name.set_text(name);
+    }
+
+    pub fn basename(&self) -> String {
+        Path::new(&self.filename.borrow().as_str())
+            .file_name()
+            .unwrap()
+            .to_str()
+            .unwrap()
+            .to_string()
+    }
+
+    pub fn set_filename(&self, filename: &str) {
+        self.filename.replace(filename.to_string());
+        self.set_name(self.basename().as_str());
+        self.set_modified(false);
+    }
+
+    pub fn filename(&self) -> String {
+        self.filename.borrow().clone()
+    }
+
+    pub fn set_modified(&self, modified: bool) {
+        let name = self.basename();
+        if modified {
+            self.set_name(&(name + "*"));
+            self.state.set(TabState::Modified);
+        } else {
+            self.set_name(name.as_str());
+            self.state.set(TabState::Saved);
+        }
+    }
+
+    pub fn undefined(&self) -> bool {
+        self.state.get() == TabState::Undefined
+    }
+
+    pub fn modified(&self) -> bool {
+        self.state.get() == TabState::Modified
+    }
+}
+
+pub fn graphtab(app: &GPSApp, id: u32) -> GraphTab {
+    app.graphbook
+        .borrow()
+        .get(&id)
+        .cloned()
+        .expect("the current graphtab should be ok")
+}
+
+pub fn graphbook_get_new_graphview_id(app_weak: &GPSAppWeak) -> u32 {
+    let app = app_weak.upgrade();
+    let mut graphview_id: u32 = 0;
+    for tab in app.unwrap().graphbook.borrow().values() {
+        if tab.graphview().id() > graphview_id {
+            graphview_id = tab.graphview().id()
+        }
+    }
+    graphview_id + 1
+}
+
+pub fn graphbook_get_new_graphtab_id(app: &GPSApp) -> u32 {
+    let mut graphtab_id: u32 = 0;
+    for tab in app.graphbook.borrow().values() {
+        if tab.id() > graphtab_id {
+            graphtab_id = tab.id()
+        }
+    }
+    graphtab_id + 1
+}
+
+pub fn current_graphtab(app: &GPSApp) -> GraphTab {
+    graphtab(app, app.current_graphtab.get())
+}
+
+pub fn current_graphtab_set_filename(app: &GPSApp, filename: &str) {
+    app.graphbook
+        .borrow()
+        .get(&app.current_graphtab.get())
+        .expect("the graphtab is available")
+        .set_filename(filename);
+}
+
+pub fn current_graphtab_set_modified(app: &GPSApp, modified: bool) {
+    app.graphbook
+        .borrow()
+        .get(&app.current_graphtab.get())
+        .expect("the graphtab is available")
+        .set_modified(modified);
+}
+
+pub fn setup_graphbook(app: &GPSApp) {
+    let graphbook: gtk::Notebook = app
+        .builder
+        .object("graphbook")
+        .expect("Couldn't get the graphbook");
+    let app_weak = app.downgrade();
+    graphbook.connect_switch_page(move |_book, widget, page| {
+        let graphview = widget
+            .first_child()
+            .expect("Unable to get the child from the graphbook, ie the scrolledWindow");
+        if let Ok(graphview) = graphview.dynamic_cast::<GM::GraphView>() {
+            let app = upgrade_weak!(app_weak);
+            GPS_TRACE!("graphview.id() {} graphbook page {}", graphview.id(), page);
+            app.current_graphtab.set(page);
+        }
+    });
+}
+
+pub fn create_graphtab(app: &GPSApp, id: u32, name: Option<&str>) {
+    let graph_tab = GraphTab::new(app.downgrade(), id, name.unwrap_or("Untitled"));
+    let gt = graph_tab.clone();
+    app.graphbook.borrow_mut().insert(id, graph_tab);
+
+    let graphbook: gtk::Notebook = app
+        .builder
+        .object("graphbook")
+        .expect("Couldn't get graphbook");
+
+    let scrollwindow = gtk::ScrolledWindow::builder()
+        .name("graphview_scroll")
+        .child(&*graphtab(app, id).graphview())
+        .build();
+
+    let tab_box = gtk::Box::new(gtk::Orientation::Horizontal, 0);
+    let label = gt.widget_label();
+    tab_box.append(label);
+    let icon = gtk::Image::from_icon_name("window-close-symbolic");
+    let close_button = gtk::Button::builder().build();
+    close_button.set_child(Some(&icon));
+    close_button.add_css_class("small-button");
+    close_button.add_css_class("image-button");
+    close_button.add_css_class("flat");
+    let app_weak = app.downgrade();
+    close_button.connect_clicked(glib::clone!(@weak graphbook => move |_| {
+        let app = upgrade_weak!(app_weak);
+        graphbook.remove_page(Some(current_graphtab(&app).id()));
+    }));
+    tab_box.append(&close_button);
+    graphbook.append_page(&scrollwindow, Some(&tab_box));
+    graphbook.set_tab_reorderable(&scrollwindow, true);
+    let app_weak = app.downgrade();
+    gt.graphview().connect_local(
+        "graph-updated",
+        false,
+        glib::clone!(@weak graphbook =>  @default-return None, move |values: &[Value]| {
+            let app = upgrade_weak!(app_weak, None);
+            let id = values[1].get::<u32>().expect("id in args[1]");
+            GPS_DEBUG!("Graph updated id={}", id);
+            let _ = app
+                .save_graph(
+                    Settings::graph_file_path()
+                        .to_str()
+                        .expect("Unable to convert to string"),
+                )
+                .map_err(|e| GPS_WARN!("Unable to save file {}", e));
+            current_graphtab_set_modified(&app, true);
+            None
+        }),
+    );
+    let app_weak = app.downgrade();
+    gt.graphview().connect_local(
+        "node-added",
+        false,
+        glib::clone!(@weak graphbook =>  @default-return None, move |values: &[Value]| {
+            let app = upgrade_weak!(app_weak, None);
+            let graph_id = values[1].get::<u32>().expect("graph id in args[1]");
+            let node_id = values[2].get::<u32>().expect("node id in args[2]");
+            GPS_DEBUG!("Node added node id={} in graph id={}", node_id, graph_id);
+            if let Some(node) = current_graphtab(&app).graphview().node(node_id) {
+                let description = GPS::ElementInfo::element_description(&node.name()).ok();
+                node.set_tooltip_markup(description.as_deref());
+                if  !GPS::ElementInfo::element_factory_exists(&node.name()) {
+                    node.set_light(true);
+                }
+                for port in node.all_ports(GM::PortDirection::All) {
+                    let caps = PropertyExt::property(&port,"_caps");
+                    GPS_DEBUG!("caps={} for port id {}", caps.clone().unwrap_or_else(|| "caps unknown".to_string()), port.id());
+                    port.set_tooltip_markup(caps.as_deref());
+                }
+            }
+
+            None
+        }),
+    );
+    let app_weak = app.downgrade();
+    gt.graphview().connect_local(
+        "port-added",
+        false,
+        glib::clone!(@weak graphbook =>  @default-return None, move |values: &[Value]| {
+            let app = upgrade_weak!(app_weak, None);
+            let graph_id = values[1].get::<u32>().expect("graph id in args[1]");
+            let node_id = values[2].get::<u32>().expect("node id in args[2]");
+            let port_id = values[3].get::<u32>().expect("port id in args[3]");
+            GPS_DEBUG!("Port added port id={} to node id={} in graph id={}", port_id, node_id, graph_id);
+            if let Some(node) = current_graphtab(&app).graphview().node(node_id) {
+                if let Some(port) = node.port(port_id) {
+                    let caps = PropertyExt::property(&port, "_caps");
+                    GPS_DEBUG!("caps={} for port id {}", caps.clone().unwrap_or_else(|| "caps unknown".to_string()), port.id());
+                    port.set_tooltip_markup(caps.as_deref());
+                }
+            }
+            None
+        }),
+    );
+    // When user clicks on port with right button
+    let app_weak = app.downgrade();
+    gt.graphview()
+        .connect_local(
+            "graph-right-clicked",
+            false,
+            glib::clone!(@weak graphbook =>  @default-return None, move |values: &[Value]| {
+                let app = upgrade_weak!(app_weak, None);
+                let point = values[1].get::<graphene::Point>().expect("point in args[2]");
+                let pop_menu = app.app_pop_menu_at_position(&*current_graphtab(&app).graphview(), point.to_vec2().x() as f64, point.to_vec2().y() as f64);
+                let menu: gio::MenuModel = app
+                .builder
+                .object("graph_menu")
+                .expect("Couldn't graph_menu");
+                pop_menu.set_menu_model(Some(&menu));
+                let app_weak = app.downgrade();
+                app.connect_app_menu_action("graph.clear",
+                    move |_,_| {
+                        let app = upgrade_weak!(app_weak);
+                        current_graphtab(&app).graphview().clear();
+                    }
+                );
+                let app_weak = app.downgrade();
+                app.connect_app_menu_action("graph.check",
+                    move |_,_| {
+                        let app = upgrade_weak!(app_weak);
+                        let render_parse_launch = current_graphtab(&app).player().pipeline_description_from_graphview(&current_graphtab(&app).graphview());
+                        if current_graphtab(&app).player().create_pipeline(&render_parse_launch).is_ok() {
+                            GPSUI::message::display_message_dialog(&render_parse_launch,gtk::MessageType::Info, |_| {});
+                        } else {
+                            GPSUI::message::display_error_dialog(false, &format!("Unable to render:\n\n{render_parse_launch}"));
+                        }
+                    }
+                );
+                let app_weak = app.downgrade();
+                app.connect_app_menu_action("graph.pipeline_details",
+                    move |_,_| {
+                        let app = upgrade_weak!(app_weak);
+                        GPSUI::properties::display_pipeline_details(&app);
+                    }
+                );
+                pop_menu.show();
+                None
+            }),
+        );
+
+    // When user clicks on port with right button
+    let app_weak = app.downgrade();
+    gt.graphview()
+        .connect_local("port-right-clicked", false, move |values: &[Value]| {
+            let app = upgrade_weak!(app_weak, None);
+            let port_id = values[1].get::<u32>().expect("port id args[1]");
+            let node_id = values[2].get::<u32>().expect("node id args[2]");
+            let point = values[3]
+                .get::<graphene::Point>()
+                .expect("point in args[3]");
+            let pop_menu = app.app_pop_menu_at_position(
+                &*current_graphtab(&app).graphview(),
+                point.to_vec2().x() as f64,
+                point.to_vec2().y() as f64,
+            );
+            let menu: gio::MenuModel = app
+                .builder
+                .object("port_menu")
+                .expect("Couldn't get menu model for port");
+            pop_menu.set_menu_model(Some(&menu));
+
+            if current_graphtab(&app)
+                .graphview()
+                .can_remove_port(node_id, port_id)
+            {
+                let app_weak = app.downgrade();
+                app.connect_app_menu_action("port.delete", move |_, _| {
+                    let app = upgrade_weak!(app_weak);
+                    GPS_DEBUG!("port.delete-link port id {} node id {}", port_id, node_id);
+                    current_graphtab(&app)
+                        .graphview()
+                        .remove_port(node_id, port_id);
+                });
+            } else {
+                app.disconnect_app_menu_action("port.delete");
+            }
+
+            let app_weak = app.downgrade();
+            app.connect_app_menu_action("port.properties", move |_, _| {
+                let app = upgrade_weak!(app_weak);
+                GPS_DEBUG!("port.properties port id {} node id {}", port_id, node_id);
+                let node = app.node(node_id);
+                let port = app.port(node_id, port_id);
+                GPSUI::properties::display_pad_properties(
+                    &app,
+                    &node.name(),
+                    &port.name(),
+                    node_id,
+                    port_id,
+                );
+            });
+            pop_menu.show();
+            None
+        });
+
+    // When user clicks on node with right button
+    let app_weak = app.downgrade();
+    gt.graphview()
+        .connect_local(
+            "node-right-clicked",
+            false,
+            glib::clone!(@weak graphbook =>  @default-return None, move |values: &[Value]| {
+                let app = upgrade_weak!(app_weak, None);
+                let node_id = values[1].get::<u32>().expect("node id args[1]");
+                let node = current_graphtab(&app).graphview().node(node_id).unwrap();
+                let element_exists = GPS::ElementInfo::element_factory_exists(&node.name());
+                let point = values[2].get::<graphene::Point>().expect("point in args[2]");
+                let pop_menu = app.app_pop_menu_at_position(&*current_graphtab(&app).graphview(), point.to_vec2().x() as f64, point.to_vec2().y() as f64);
+                let menu: gio::MenuModel = app
+                    .builder
+                    .object("node_menu")
+                    .expect("Couldn't get menu model for node");
+                pop_menu.set_menu_model(Some(&menu));
+
+
+                let app_weak = app.downgrade();
+                app.connect_app_menu_action("node.delete",
+                    move |_,_| {
+                        let app = upgrade_weak!(app_weak);
+                        GPS_DEBUG!("node.delete id: {}", node_id);
+                        current_graphtab(&app).graphview().remove_node(node_id);
+                    }
+                );
+                if element_exists {
+                    let app_weak = app.downgrade();
+                    app.connect_app_menu_action("node.add-to-favorite",
+                        move |_,_| {
+                            let app = upgrade_weak!(app_weak);
+                            GPS_DEBUG!("node.add-to-favorite id: {}", node_id);
+                            if let Some(node) = current_graphtab(&app).graphview().node(node_id) {
+                                GPSUI::elements::add_to_favorite_list(&app, node.name());
+                            };
+                        }
+                    );
+
+
+                    let node = app.node(node_id);
+                    if let Some(input) = GPS::ElementInfo::element_supports_new_pad_request(&node.name(),  GM::PortDirection::Input) {
+                        let app_weak = app.downgrade();
+                        app.connect_app_menu_action("node.request-pad-input",
+                            move |_,_| {
+                                let app = upgrade_weak!(app_weak);
+                                GPS_DEBUG!("node.request-pad-input id: {}", node_id);
+                                app.create_port_with_caps(node_id, GM::PortDirection::Input, GM::PortPresence::Sometimes, input.caps().to_string());
+                            }
+                        );
+                    } else {
+                        app.disconnect_app_menu_action("node.request-pad-input");
+                    }
+                    let node = app.node(node_id);
+                    if let Some(output) = GPS::ElementInfo::element_supports_new_pad_request(&node.name(),  GM::PortDirection::Output) {
+                        let app_weak = app.downgrade();
+                        app.connect_app_menu_action("node.request-pad-output",
+                            move |_,_| {
+                                let app = upgrade_weak!(app_weak);
+                                GPS_DEBUG!("node.request-pad-output id: {}", node_id);
+                                app.create_port_with_caps(node_id, GM::PortDirection::Output, GM::PortPresence::Sometimes, output.caps().to_string());
+                            }
+                        );
+                    } else {
+                        app.disconnect_app_menu_action("node.request-pad-output");
+                    }
+
+                    let app_weak = app.downgrade();
+                    app.connect_app_menu_action("node.properties",
+                        move |_,_| {
+                            let app = upgrade_weak!(app_weak);
+                            GPS_DEBUG!("node.properties id {}", node_id);
+                            let node = current_graphtab(&app).graphview().node(node_id).unwrap();
+                            GPSUI::properties::display_plugin_properties(&app, &node.name(), node_id);
+                        }
+                    );
+                }
+                pop_menu.show();
+                None
+            }),
+        );
+
+    let app_weak = app.downgrade();
+    gt.graphview().connect_local(
+        "node-double-clicked",
+        false,
+        glib::clone!(@weak graphbook =>  @default-return None, move |values: &[Value]| {
+            let app = upgrade_weak!(app_weak, None);
+            let node_id = values[1].get::<u32>().expect("node id args[1]");
+            GPS_TRACE!("Node double clicked id={}", node_id);
+            let node = current_graphtab(&app).graphview().node(node_id).unwrap();
+            if GPS::ElementInfo::element_factory_exists(&node.name()) {
+                GPSUI::properties::display_plugin_properties(&app, &node.name(), node_id);
+            }
+            None
+        }),
+    );
+    let app_weak = app.downgrade();
+    gt.graphview().connect_local(
+        "link-double-clicked",
+        false,
+        glib::clone!(@weak graphbook =>  @default-return None, move |values: &[Value]| {
+            let app = upgrade_weak!(app_weak, None);
+            let link_id = values[1].get::<u32>().expect("link id args[1]");
+            GPS_TRACE!("link double clicked id={}", link_id);
+            let link = current_graphtab(&app).graphview().link(link_id).unwrap();
+            GPSUI::dialog::create_input_dialog(
+                "Enter caps filter description",
+                "description",
+                &link.name(),
+                &app,
+                move |app, link_desc| {
+                    current_graphtab(&app).graphview().set_link_name(link.id(), link_desc.as_str());
+                    GPS_DEBUG!("link double clicked id={} name={}", link.id(), link.name());
+                },
+            );
+            None
+        }),
+    );
+}

src/graphmanager/LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+
+                            Preamble
+
+The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so. This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software. The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable. Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products. If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary. To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+0. Definitions.
+
+"This License" refers to version 3 of the GNU General Public License.
+
+"Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+"The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy. The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+1. Source Code.
+
+The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
+form of a work.
+
+A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+The Corresponding Source for a work in source code form is that
+same work.
+
+2. Basic Permissions.
+
+All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force. You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright. Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+Conveying under any other circumstances is permitted solely under
+the conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+4. Conveying Verbatim Copies.
+
+You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+5. Conveying Modified Source Versions.
+
+You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+6. Conveying Non-Source Forms.
+
+You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling. In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage. For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product. A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+"Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source. The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information. But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed. Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+7. Additional Terms.
+
+"Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.) You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10. If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+8. Termination.
+
+You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+9. Acceptance Not Required for Having Copies.
+
+You are not required to accept this License in order to receive or
+run a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+10. Automatic Licensing of Downstream Recipients.
+
+Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+11. Patents.
+
+A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+13. Use with the GNU Affero General Public License.
+
+Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

src/graphmanager/graphview.css

@@ -3,6 +3,10 @@
 button.node {
   color: rgb(0, 0, 255);
   background: rgb(170, 255, 170);
+  border-width: 2px;
+  border-style: solid;
+  border-radius: 10px;
+  border-color: rgb(0, 0, 0);
 }
 
 button.node-selected {
@@ -10,8 +14,16 @@ button.node-selected {
   background: rgb(170, 255, 170);
 }
 
+button.node-light {
+  border-style: dashed;
+}
+
 button.port {
   color: rgb(0, 0, 255);
+  border-width: 2px;
+  border-style: solid;
+  border-radius: 10px;
+  border-color: rgb(0, 0, 0);
 }
 
 button.port-selected {
@@ -26,6 +38,14 @@ button.port-in {
   background: rgb(170, 170, 255);
 }
 
+button.port-sometimes {
+  border-style: dashed;
+}
+
+button.port-always {
+  border-style: solid;
+}
+
 graphview {
   background: #d0d2d4;
-}
+}

src/graphmanager/link.rs

@@ -3,22 +3,12 @@
 // Copyright 2021 Tom A. Wagner <tom.a.wagner@protonmail.com>
 // Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// This file is part of GraphManager
 //
 // SPDX-License-Identifier: GPL-3.0-only
 
-use std::cell::Cell;
+use super::SelectionExt;
+use std::cell::{Cell, RefCell};
 
 #[derive(Debug, Clone)]
 pub struct Link {
@@ -27,42 +17,62 @@ pub struct Link {
     pub node_to: u32,
     pub port_from: u32,
     pub port_to: u32,
-    pub active: bool,
+    pub active: Cell<bool>,
     pub selected: Cell<bool>,
     pub thickness: u32,
+    pub name: RefCell<String>,
 }
 
 impl Link {
-    pub fn new(
-        id: u32,
-        node_from: u32,
-        node_to: u32,
-        port_from: u32,
-        port_to: u32,
-        active: bool,
-        selected: bool,
-    ) -> Self {
+    pub fn name(&self) -> String {
+        self.name.borrow().clone()
+    }
+
+    pub fn set_name(&self, name: &str) {
+        self.name.replace(name.to_string());
+    }
+    pub fn id(&self) -> u32 {
+        self.id
+    }
+    pub fn active(&self) -> bool {
+        self.active.get()
+    }
+    pub fn set_active(&self, active: bool) {
+        self.active.set(active)
+    }
+}
+
+pub trait LinkExt {
+    /// Create a new link
+    ///
+    fn new(id: u32, node_from: u32, node_to: u32, port_from: u32, port_to: u32) -> Self;
+}
+
+impl LinkExt for Link {
+    fn new(id: u32, node_from: u32, node_to: u32, port_from: u32, port_to: u32) -> Self {
         Self {
             id,
             node_from,
             node_to,
             port_from,
             port_to,
-            active,
-            selected: Cell::new(selected),
+            active: Cell::new(true),
+            selected: Cell::new(false),
             thickness: 4,
+            name: RefCell::new("".to_string()),
         }
     }
-
-    pub fn toggle_selected(&self) {
+}
+impl SelectionExt for Link {
+    fn toggle_selected(&self) {
         self.set_selected(!self.selected.get());
     }
 
-    pub fn set_selected(&self, selected: bool) {
+    fn set_selected(&self, selected: bool) {
         self.selected.set(selected);
     }
 
-    pub fn selected(&self) -> bool {
+    fn selected(&self) -> bool {
         self.selected.get()
     }
 }

src/graphmanager/mod.rs

@@ -2,10 +2,153 @@ mod graphview;
 mod link;
 mod node;
 mod port;
+mod property;
+mod selection;
 
 pub use graphview::GraphView;
-pub use link::Link;
 pub use node::Node;
 pub use node::NodeType;
 pub use port::Port;
-pub use port::PortDirection;
+pub use port::{PortDirection, PortPresence};
+pub use property::PropertyExt;
+pub use selection::SelectionExt;
+
+#[cfg(test)]
+fn test_synced<F, R>(function: F) -> R
+where
+    F: FnOnce() -> R + Send + std::panic::UnwindSafe + 'static,
+    R: Send + 'static,
+{
+    /// No-op.
+    macro_rules! skip_assert_initialized {
+        () => {};
+    }
+    skip_assert_initialized!();
+
+    use futures_channel::oneshot;
+    use std::panic;
+
+    let (tx, rx) = oneshot::channel();
+    TEST_THREAD_WORKER
+        .push(move || {
+            tx.send(panic::catch_unwind(function))
+                .unwrap_or_else(|_| panic!("Failed to return result from thread pool"));
+        })
+        .expect("Failed to schedule a test call");
+    futures_executor::block_on(rx)
+        .expect("Failed to receive result from thread pool")
+        .unwrap_or_else(|e| std::panic::resume_unwind(e))
+}
+
+#[cfg(test)]
+static TEST_THREAD_WORKER: once_cell::sync::Lazy<gtk::glib::ThreadPool> =
+    once_cell::sync::Lazy::new(|| {
+        let pool = gtk::glib::ThreadPool::exclusive(1).unwrap();
+        pool.push(move || {
+            gtk::init().expect("Tests failed to initialize gtk");
+        })
+        .expect("Failed to schedule a test call");
+        pool
+    });
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    #[test]
+    fn graphview_creation() {
+        test_synced(|| {
+            let graphview = GraphView::new();
+            assert_eq!(graphview.id(), 0);
+        });
+    }
+    #[test]
+    fn graphview_lifetime() {
+        test_synced(|| {
+            let graphview = GraphView::new();
+            assert_eq!(graphview.id(), 0);
+            let node = graphview.create_node("my_node1", NodeType::Source);
+            node.add_property("np1", "nv1");
+            graphview.add_node(node);
+            //create a port input on node 1
+            let port = graphview.create_port("out", PortDirection::Output, PortPresence::Always);
+            assert_eq!(port.name(), "out");
+            assert_eq!(port.id(), 1);
+            let mut node: Node = graphview.node(1).unwrap();
+            graphview.add_port_to_node(&mut node, port);
+
+            let node = graphview.create_node_with_port("my_node2", NodeType::Transform, 1, 1);
+            node.add_property("np2", "nv2");
+            graphview.add_node(node);
+
+            let node = graphview.create_node("my_node3", NodeType::Sink);
+            node.add_property("np3", "nv3");
+            graphview.add_node(node);
+            //create a port input on node 3
+            let port = graphview.create_port("in", PortDirection::Input, PortPresence::Always);
+            port.add_property("p1", "v1");
+            assert_eq!(port.name(), "in");
+            assert_eq!(port.id(), 4);
+            let mut node: Node = graphview.node(3).unwrap();
+            graphview.add_port_to_node(&mut node, port);
+
+            assert_eq!(graphview.all_nodes(NodeType::Source).len(), 1);
+            assert_eq!(graphview.all_nodes(NodeType::Transform).len(), 1);
+            assert_eq!(graphview.all_nodes(NodeType::Sink).len(), 1);
+            assert_eq!(graphview.all_nodes(NodeType::All).len(), 3);
+
+            assert_eq!(graphview.node(1).unwrap().name(), "my_node1");
+            assert_eq!(graphview.node(2).unwrap().name(), "my_node2");
+            assert_eq!(graphview.node(3).unwrap().name(), "my_node3");
+
+            // Ports have been created by create_node_with_port
+
+            //Create link between node1 and node 2
+            let link = graphview.create_link(1, 2, 1, 2);
+            assert_eq!(&link.name(), "");
+            assert!(&link.active());
+            link.set_name("link1");
+            assert_eq!(&link.name(), "link1");
+            graphview.add_link(link);
+
+            //Create link between node2 and node 3
+            let link = graphview.create_link(2, 3, 3, 4);
+            graphview.add_link(link);
+
+            // Save the graphview in XML into a buffer
+            let buffer = graphview
+                .render_xml()
+                .expect("Should be able to render graph to xml");
+            println!("{}", std::str::from_utf8(&buffer).unwrap());
+            // Load the graphview from XML buffer
+            graphview
+                .load_from_xml(buffer)
+                .expect("Should be able to load from XML data");
+
+            // Check that nodes and links are present
+            assert_eq!(graphview.all_nodes(NodeType::All).len(), 3);
+            assert_eq!(graphview.all_links(true).len(), 2);
+
+            // Check all nodes are linked
+            assert!(graphview.node_is_linked(1).is_some());
+            assert!(graphview.node_is_linked(2).is_some());
+            assert!(graphview.node_is_linked(3).is_some());
+
+            // Check all ports are linked
+            assert!(graphview.port_connected_to(1).is_some());
+            assert!(graphview.port_connected_to(3).is_some());
+
+            // Check properties
+            let node = graphview.node(1).expect("Should be able to get node 1");
+            assert_eq!(&node.property("np1").unwrap(), "nv1");
+            let node = graphview.node(2).expect("Should be able to get node 1");
+            assert_eq!(&node.property("np2").unwrap(), "nv2");
+            let node = graphview.node(3).expect("Should be able to get node 1");
+            assert_eq!(&node.property("np3").unwrap(), "nv3");
+
+            // Clear the graph and check that everything has been destroyed properly
+            graphview.clear();
+            assert_eq!(graphview.all_nodes(NodeType::All).len(), 0);
+            assert_eq!(graphview.all_links(true).len(), 0);
+        });
+    }
+}

src/graphmanager/node.rs

@@ -3,33 +3,24 @@
 // Copyright 2021 Tom A. Wagner <tom.a.wagner@protonmail.com>
 // Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// This file is part of GraphManager
 //
 // SPDX-License-Identifier: GPL-3.0-only
+
 use gtk::glib;
 use gtk::prelude::*;
 use gtk::subclass::prelude::*;
+use log::trace;
 
-use super::Port;
-use super::PortDirection;
+use super::{Port, PortDirection, PortPresence, PropertyExt, SelectionExt};
 
 use std::cell::{Cell, Ref, RefCell};
 use std::collections::HashMap;
 
 use std::fmt;
+use std::fmt::Write as _;
 
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub enum NodeType {
     Source,
     Transform,
@@ -40,7 +31,7 @@ pub enum NodeType {
 
 impl fmt::Display for NodeType {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{:?}", self)
+        write!(f, "{self:?}")
     }
 }
 
@@ -58,12 +49,10 @@ impl NodeType {
 
 mod imp {
     use super::*;
-    use gtk::Orientation;
     use once_cell::unsync::OnceCell;
+    #[derive(Default)]
     pub struct Node {
-        pub(super) layoutbox: gtk::Box,
-        pub(super) inputs: gtk::Box,
-        pub(super) outputs: gtk::Box,
+        pub(super) layoutgrid: gtk::Grid,
         pub(super) name: gtk::Label,
         pub(super) description: gtk::Label,
         pub(super) id: OnceCell<u32>,
@@ -71,8 +60,12 @@ mod imp {
         pub(super) ports: RefCell<HashMap<u32, Port>>,
         pub(super) num_ports_in: Cell<i32>,
         pub(super) num_ports_out: Cell<i32>,
+        // Properties are different from GObject properties
         pub(super) properties: RefCell<HashMap<String, String>>,
         pub(super) selected: Cell<bool>,
+        pub(super) light: Cell<bool>,
+        pub(super) position: Cell<(f32, f32)>,
+        pub(super) unique_name: RefCell<String>,
     }
 
     #[glib::object_subclass]
@@ -87,74 +80,44 @@ mod imp {
         }
 
         fn new() -> Self {
-            let layoutbox = gtk::Box::new(Orientation::Vertical, 6);
-            let name_desc = gtk::Box::new(Orientation::Vertical, 6);
-            layoutbox.append(&name_desc);
-            let ports = gtk::Box::builder()
-                .orientation(Orientation::Horizontal)
-                .halign(gtk::Align::Start)
-                .spacing(10)
-                .margin_bottom(10)
-                .margin_top(10)
-                .build();
-
-            layoutbox.append(&ports);
-            let inputs = gtk::Box::builder()
-                .orientation(Orientation::Vertical)
-                .halign(gtk::Align::Start)
-                .spacing(10)
-                .build();
-
-            ports.append(&inputs);
-            let center = gtk::Box::builder()
-                .orientation(Orientation::Vertical)
+            let layoutgrid = gtk::Grid::builder()
+                .margin_start(6)
+                .margin_end(6)
+                .margin_top(6)
+                .margin_bottom(6)
                 .halign(gtk::Align::Center)
-                .hexpand(true)
-                .margin_start(20)
-                .margin_end(20)
+                .valign(gtk::Align::Center)
+                .row_spacing(6)
+                .column_spacing(6)
                 .build();
-            ports.append(&center);
-            let outputs = gtk::Box::builder()
-                .orientation(Orientation::Vertical)
-                .halign(gtk::Align::End)
-                .spacing(10)
-                .build();
-            ports.append(&outputs);
 
             let name = gtk::Label::new(None);
-            name_desc.append(&name);
+            layoutgrid.attach(&name, 1, 0, 1, 1);
 
             let description = gtk::Label::new(None);
-            name_desc.append(&description);
+            layoutgrid.attach(&description, 1, 1, 1, 1);
 
             // Display a grab cursor when the mouse is over the name so the user knows the node can be dragged.
             name.set_cursor(gtk::gdk::Cursor::from_name("grab", None).as_ref());
 
             Self {
-                layoutbox,
-                inputs,
-                outputs,
+                layoutgrid,
                 name,
                 description,
-                id: OnceCell::new(),
-                node_type: OnceCell::new(),
-                ports: RefCell::new(HashMap::new()),
-                num_ports_in: Cell::new(0),
-                num_ports_out: Cell::new(0),
-                properties: RefCell::new(HashMap::new()),
-                selected: Cell::new(false),
+                ..Default::default()
             }
         }
     }
 
     impl ObjectImpl for Node {
-        fn constructed(&self, obj: &Self::Type) {
-            self.parent_constructed(obj);
-            self.layoutbox.set_parent(obj);
+        fn constructed(&self) {
+            let obj = self.obj();
+            self.parent_constructed();
+            self.layoutgrid.set_parent(&*obj);
         }
 
-        fn dispose(&self, _obj: &Self::Type) {
-            self.layoutbox.unparent();
+        fn dispose(&self) {
+            self.layoutgrid.unparent();
         }
     }
 
@@ -167,11 +130,16 @@ glib::wrapper! {
 }
 
 impl Node {
+    /// Create a new node
+    ///
     pub fn new(id: u32, name: &str, node_type: NodeType) -> Self {
-        let res: Self = glib::Object::new(&[]).expect("Failed to create Node");
-        let private = imp::Node::from_instance(&res);
+        let res = glib::Object::new::<Self>();
+        let private = imp::Node::from_obj(&res);
         private.id.set(id).expect("Node id is already set");
         res.set_name(name);
+        let mut unique_name = private.name.text().to_string();
+        unique_name.push_str(&id.to_string());
+        private.unique_name.replace(unique_name);
         res.add_css_class("node");
         private
             .node_type
@@ -180,50 +148,37 @@ impl Node {
         res
     }
 
-    fn set_name(&self, name: &str) {
-        let self_ = imp::Node::from_instance(self);
-        self_.name.set_text(name);
-    }
-
-    fn set_description(&self, description: &str) {
-        let self_ = imp::Node::from_instance(self);
-        self_.description.set_text(description);
-        println!("{}", description);
-    }
-
-    fn update_description(&self) {
-        let self_ = imp::Node::from_instance(self);
-        let mut description = String::from("");
-        for (name, value) in self_.properties.borrow().iter() {
-            description.push_str(&format!("{}:{}", name, value));
-            description.push('\n');
-        }
-        self.set_description(&description);
-    }
-
-    pub fn add_port(&mut self, id: u32, name: &str, direction: PortDirection) {
-        let private = imp::Node::from_instance(self);
-        let port = Port::new(id, name, direction);
+    /// Add a new port to the node
+    ///
+    pub fn add_port(&mut self, port: Port) {
+        let private = imp::Node::from_obj(self);
         match port.direction() {
             PortDirection::Input => {
-                private.inputs.append(&port);
+                private
+                    .layoutgrid
+                    .attach(&port, 0, private.num_ports_in.get(), 1, 1);
                 private.num_ports_in.set(private.num_ports_in.get() + 1);
             }
             PortDirection::Output => {
-                private.outputs.append(&port);
+                private
+                    .layoutgrid
+                    .attach(&port, 2, private.num_ports_out.get(), 1, 1);
                 private.num_ports_out.set(private.num_ports_out.get() + 1);
             }
             _ => panic!("Port without direction"),
         }
-
-        private.ports.borrow_mut().insert(id, port);
+        private.ports.borrow_mut().insert(port.id(), port);
     }
 
+    /// Retrieves all ports as an hashmap
+    ///
     pub fn ports(&self) -> Ref<HashMap<u32, Port>> {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         private.ports.borrow()
     }
 
+    /// Retrieves all ports with given direction
+    ///
     pub fn all_ports(&self, direction: PortDirection) -> Vec<Port> {
         let ports_list: Vec<_> = self
             .ports()
@@ -234,13 +189,42 @@ impl Node {
         ports_list
     }
 
-    pub fn port(&self, id: &u32) -> Option<super::port::Port> {
-        let private = imp::Node::from_instance(self);
-        private.ports.borrow().get(id).cloned()
+    /// Retrieves the port with id
+    ///
+    pub fn port(&self, id: u32) -> Option<super::port::Port> {
+        let private = imp::Node::from_obj(self);
+        private.ports.borrow().get(&id).cloned()
     }
 
+    /// Get the port with the specified port name inside the node.
+    ///
+    /// Returns `None` if the node is not in the graphview.
+    pub fn port_by_name(&self, name: &str) -> Option<Port> {
+        let private = imp::Node::from_obj(self);
+        for port in private.ports.borrow().values() {
+            if port.name() == name {
+                return Some(port.clone());
+            }
+        }
+        None
+    }
+
+    /// Check if we can remove a port dependending on PortPrensence attribute
+    ///
+    pub fn can_remove_port(&self, id: u32) -> bool {
+        let private = imp::Node::from_obj(self);
+        if let Some(port) = private.ports.borrow().get(&id) {
+            if port.presence() != PortPresence::Always {
+                return true;
+            }
+        }
+        false
+    }
+
+    /// Removes a port id from the given node
+    ///
     pub fn remove_port(&self, id: u32) {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         if let Some(port) = private.ports.borrow_mut().remove(&id) {
             match port.direction() {
                 PortDirection::Input => private.num_ports_in.set(private.num_ports_in.get() - 1),
@@ -251,52 +235,112 @@ impl Node {
         }
     }
 
+    /// Retrieves the node id
+    ///
     pub fn id(&self) -> u32 {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         private.id.get().copied().expect("Node id is not set")
     }
 
+    /// Retrieves the node name
+    ///
     pub fn name(&self) -> String {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         private.name.text().to_string()
     }
 
+    /// Retrieves the unique name composed with the node name and its id
+    ///
     pub fn unique_name(&self) -> String {
-        let private = imp::Node::from_instance(self);
-        let mut unique_name = private.name.text().to_string();
-        unique_name.push_str(&self.id().to_string());
-        unique_name
+        let private = imp::Node::from_obj(self);
+        private.unique_name.borrow().clone()
     }
 
+    /// Update the unique name
+    ///
+    pub fn set_unique_name(&self, unique_name: &str) {
+        let private = imp::Node::from_obj(self);
+        private.unique_name.replace(unique_name.to_string());
+    }
+
+    /// Retrieves the NodeType
+    ///
     pub fn node_type(&self) -> Option<&NodeType> {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         private.node_type.get()
     }
 
-    pub fn add_property(&self, name: String, value: String) {
-        let private = imp::Node::from_instance(self);
-        println!("property name={} updated with value={}", name, value);
-        private.properties.borrow_mut().insert(name, value);
-        self.update_description();
-    }
-
-    pub fn update_node_properties(&self, new_properties: &HashMap<String, String>) {
-        for (key, value) in new_properties {
-            self.add_property(key.clone(), value.clone());
+    /// Unselect all the ports of the given node.
+    ///
+    pub fn unselect_all_ports(&self) {
+        let private = imp::Node::from_obj(self);
+        for port in private.ports.borrow_mut().values() {
+            port.set_selected(false);
         }
     }
 
-    pub fn properties(&self) -> Ref<HashMap<String, String>> {
-        let private = imp::Node::from_instance(self);
-        private.properties.borrow()
+    /// Set coordinates for the drawn node.
+    ///
+    pub fn set_position(&self, x: f32, y: f32) {
+        imp::Node::from_obj(self).position.set((x, y));
     }
 
-    pub fn toggle_selected(&self) {
+    /// Get coordinates for the drawn node.
+    ///
+    /// # Returns
+    /// `(x, y)`
+    pub fn position(&self) -> (f32, f32) {
+        imp::Node::from_obj(self).position.get()
+    }
+
+    pub fn set_light(&self, light: bool) {
+        let self_ = imp::Node::from_obj(self);
+        self_.light.set(light);
+        if light {
+            self.add_css_class("node-light");
+        } else {
+            self.remove_css_class("node-light");
+        }
+    }
+
+    pub fn light(&self) -> bool {
+        let self_ = imp::Node::from_obj(self);
+        self_.light.get()
+    }
+
+    //Private
+
+    fn set_name(&self, name: &str) {
+        let self_ = imp::Node::from_obj(self);
+        self_.name.set_text(name);
+    }
+
+    fn set_description(&self, description: &str) {
+        let self_ = imp::Node::from_obj(self);
+        self_.description.set_text(description);
+        trace!("Node description is {}", description);
+    }
+
+    fn update_description(&self) {
+        let self_ = imp::Node::from_obj(self);
+        let mut description = String::from("");
+        for (name, value) in self_.properties.borrow().iter() {
+            if !self.hidden_property(name) {
+                let _ = write!(description, "{name}:{value}");
+                description.push('\n');
+            }
+        }
+        self.set_description(&description);
+    }
+}
+
+impl SelectionExt for Node {
+    fn toggle_selected(&self) {
         self.set_selected(!self.selected());
     }
 
-    pub fn set_selected(&self, selected: bool) {
-        let private = imp::Node::from_instance(self);
+    fn set_selected(&self, selected: bool) {
+        let private = imp::Node::from_obj(self);
         private.selected.set(selected);
         if selected {
             self.add_css_class("node-selected");
@@ -305,15 +349,38 @@ impl Node {
         }
     }
 
-    pub fn selected(&self) -> bool {
-        let private = imp::Node::from_instance(self);
+    fn selected(&self) -> bool {
+        let private = imp::Node::from_obj(self);
         private.selected.get()
     }
+}
 
-    pub fn unselect_all_ports(&self) {
-        let private = imp::Node::from_instance(self);
-        for port in private.ports.borrow_mut().values() {
-            port.set_selected(false);
-        }
+impl PropertyExt for Node {
+    /// Add a node property with a name and a value.
+    ///
+    fn add_property(&self, name: &str, value: &str) {
+        let private = imp::Node::from_obj(self);
+        trace!("property name={} updated with value={}", name, value);
+        private
+            .properties
+            .borrow_mut()
+            .insert(name.to_string(), value.to_string());
+        self.update_description();
+    }
+
+    /// Remove a port property with a name.
+    ///
+    fn remove_property(&self, name: &str) {
+        let private = imp::Node::from_obj(self);
+        trace!("property name={} removed", name);
+        private.properties.borrow_mut().remove(name);
+        self.update_description();
+    }
+
+    /// Retrieves node properties.
+    ///
+    fn properties(&self) -> Ref<HashMap<String, String>> {
+        let private = imp::Node::from_obj(self);
+        private.properties.borrow()
     }
 }

src/graphmanager/port.rs

@@ -3,29 +3,24 @@
 // Copyright 2021 Tom A. Wagner <tom.a.wagner@protonmail.com>
 // Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// This file is part of GraphManager
 //
 // SPDX-License-Identifier: GPL-3.0-only
+
 use gtk::{
     glib::{self},
     prelude::*,
     subclass::prelude::*,
 };
-use std::cell::Cell;
-use std::{borrow::Borrow, fmt};
+use log::trace;
+use std::cell::RefCell;
+use std::cell::{Cell, Ref};
+use std::collections::HashMap;
+use std::fmt;
 
-#[derive(Debug, Clone, PartialEq, Copy)]
+use super::{PropertyExt, SelectionExt};
+
+#[derive(Debug, Clone, PartialOrd, PartialEq, Eq, Copy)]
 pub enum PortDirection {
     Input,
     Output,
@@ -35,7 +30,7 @@ pub enum PortDirection {
 
 impl fmt::Display for PortDirection {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{:?}", self)
+        write!(f, "{self:?}")
     }
 }
 
@@ -44,23 +39,51 @@ impl PortDirection {
         match port_direction_name {
             "Input" => PortDirection::Input,
             "Output" => PortDirection::Output,
-            "All" => PortDirection::Output,
+            "All" => PortDirection::All,
             _ => PortDirection::Unknown,
         }
     }
 }
 
+/// Port's presence
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Copy)]
+pub enum PortPresence {
+    /// Can not be removed from his parent independently
+    Always,
+    /// Can be removed from a node
+    Sometimes,
+    Unknown,
+}
+
+impl fmt::Display for PortPresence {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{self:?}")
+    }
+}
+
+impl PortPresence {
+    pub fn from_str(port_direction_name: &str) -> PortPresence {
+        match port_direction_name {
+            "Always" => PortPresence::Always,
+            "Sometimes" => PortPresence::Sometimes,
+            _ => PortPresence::Unknown,
+        }
+    }
+}
+
 mod imp {
     use super::*;
     use once_cell::unsync::OnceCell;
 
-    /// Graphical representation of a pipewire port.
-    #[derive(Default, Clone)]
+    /// Graphical representation of a port.
+    #[derive(Default)]
     pub struct Port {
-        pub(super) label: OnceCell<gtk::Label>,
+        pub(super) label: gtk::Label,
         pub(super) id: OnceCell<u32>,
         pub(super) direction: OnceCell<PortDirection>,
         pub(super) selected: Cell<bool>,
+        pub(super) presence: OnceCell<PortPresence>,
+        pub(super) properties: RefCell<HashMap<String, String>>,
     }
 
     #[glib::object_subclass]
@@ -75,13 +98,28 @@ mod imp {
             // Make it look like a GTK button.
             klass.set_css_name("button");
         }
+
+        fn new() -> Self {
+            let label = gtk::Label::new(None);
+            Self {
+                label,
+                id: OnceCell::new(),
+                direction: OnceCell::new(),
+                selected: Cell::new(false),
+                presence: OnceCell::new(),
+                properties: RefCell::new(HashMap::new()),
+            }
+        }
     }
 
     impl ObjectImpl for Port {
-        fn dispose(&self, _obj: &Self::Type) {
-            if let Some(label) = self.label.get() {
-                label.unparent()
-            }
+        fn constructed(&self) {
+            let obj = self.obj();
+            self.parent_constructed();
+            self.label.set_parent(&*obj);
+        }
+        fn dispose(&self) {
+            self.label.unparent()
         }
     }
     impl WidgetImpl for Port {}
@@ -93,11 +131,13 @@ glib::wrapper! {
 }
 
 impl Port {
-    pub fn new(id: u32, name: &str, direction: PortDirection) -> Self {
+    /// Create a new port
+    ///
+    pub fn new(id: u32, name: &str, direction: PortDirection, presence: PortPresence) -> Self {
         // Create the widget and initialize needed fields
-        let port: Self = glib::Object::new(&[]).expect("Failed to create Port");
+        let port: Self = glib::Object::new::<Self>();
         port.add_css_class("port");
-        let private = imp::Port::from_instance(&port);
+        let private = imp::Port::from_obj(&port);
         private.id.set(id).expect("Port id already set");
         private.selected.set(false);
         private
@@ -109,39 +149,63 @@ impl Port {
         } else {
             port.add_css_class("port-out");
         }
-
-        let label = gtk::Label::new(Some(name));
-        label.set_parent(&port);
         private
-            .label
-            .set(label)
-            .expect("Port label was already set");
+            .presence
+            .set(presence)
+            .expect("Port presence already set");
+        if presence == PortPresence::Always {
+            port.add_css_class("port-always");
+        } else {
+            port.add_css_class("port-sometimes");
+        }
+        private.label.set_text(name);
 
         port
     }
 
+    /// Retrieves the port id
+    ///
     pub fn id(&self) -> u32 {
-        let private = imp::Port::from_instance(self);
+        let private = imp::Port::from_obj(self);
         private.id.get().copied().expect("Port id is not set")
     }
 
+    /// Retrieves the port name
+    ///
+    pub fn name(&self) -> String {
+        let private = imp::Port::from_obj(self);
+        private.label.text().to_string()
+    }
+
+    /// Set the port name
+    ///
+    pub fn set_name(&self, name: &str) {
+        let private = imp::Port::from_obj(self);
+        private.label.set_text(name);
+    }
+
+    /// Retrieves the port direction
+    ///
     pub fn direction(&self) -> PortDirection {
-        let private = imp::Port::from_instance(self);
+        let private = imp::Port::from_obj(self);
         *private.direction.get().expect("Port direction is not set")
     }
 
-    pub fn name(&self) -> String {
-        let private = imp::Port::from_instance(self);
-        let label = private.label.borrow().get().unwrap();
-        label.text().to_string()
+    /// Retrieves the port presence
+    ///
+    pub fn presence(&self) -> PortPresence {
+        let private = imp::Port::from_obj(self);
+        *private.presence.get().expect("Port presence is not set")
     }
+}
 
-    pub fn toggle_selected(&self) {
+impl SelectionExt for Port {
+    fn toggle_selected(&self) {
         self.set_selected(!self.selected());
     }
 
-    pub fn set_selected(&self, selected: bool) {
-        let private = imp::Port::from_instance(self);
+    fn set_selected(&self, selected: bool) {
+        let private = imp::Port::from_obj(self);
         private.selected.set(selected);
         if selected {
             self.add_css_class("port-selected");
@@ -150,8 +214,36 @@ impl Port {
         }
     }
 
-    pub fn selected(&self) -> bool {
-        let private = imp::Port::from_instance(self);
+    fn selected(&self) -> bool {
+        let private = imp::Port::from_obj(self);
         private.selected.get()
     }
 }
+
+impl PropertyExt for Port {
+    /// Add a port property with a name and a value.
+    ///
+    fn add_property(&self, name: &str, value: &str) {
+        let private = imp::Port::from_obj(self);
+        trace!("property name={} updated with value={}", name, value);
+        private
+            .properties
+            .borrow_mut()
+            .insert(name.to_string(), value.to_string());
+    }
+
+    /// Remove a port property with a name.
+    ///
+    fn remove_property(&self, name: &str) {
+        let private = imp::Port::from_obj(self);
+        trace!("property name={} removed", name);
+        private.properties.borrow_mut().remove(name);
+    }
+
+    /// Retrieves node properties.
+    ///
+    fn properties(&self) -> Ref<HashMap<String, String>> {
+        let private = imp::Port::from_obj(self);
+        private.properties.borrow()
+    }
+}

src/graphmanager/property.rs

@@ -0,0 +1,54 @@
+// property.rs
+//
+// Copyright 2022 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GraphManager
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+use log::info;
+use std::cell::Ref;
+use std::collections::HashMap;
+pub trait PropertyExt {
+    fn hidden_property(&self, name: &str) -> bool {
+        name.starts_with('_')
+    }
+
+    /// Add a node property with a name and a value.
+    ///
+    fn add_property(&self, name: &str, value: &str);
+
+    /// Add a node property with a name and a value.
+    ///
+    fn remove_property(&self, name: &str);
+
+    /// Update the properties.
+    ///
+    /// Update the PropertyExt properties.
+    ///
+    fn update_properties(&self, new_properties: &HashMap<String, String>) {
+        for (key, value) in new_properties {
+            info!("Updating property name={} value={}", key, value);
+            if value.is_empty() {
+                self.remove_property(key);
+            } else {
+                self.add_property(key, value);
+            }
+        }
+    }
+
+    /// Retrieves properties.
+    ///
+    fn properties(&self) -> Ref<HashMap<String, String>>;
+
+    /// Retrieves property with the name.
+    ///
+    /// Retrieves node property with the name.
+    ///
+    fn property(&self, name: &str) -> Option<String> {
+        if let Some(property) = self.properties().get(name) {
+            return Some(property.clone());
+        }
+        None
+    }
+}

src/graphmanager/selection.rs

@@ -0,0 +1,21 @@
+// selection.rs
+//
+// Copyright 2022 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GraphManager
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+pub trait SelectionExt {
+    /// Toggle selected
+    ///
+    fn toggle_selected(&self);
+
+    /// Set selection to selected state
+    ///
+    fn set_selected(&self, selected: bool);
+
+    /// Retrieve selection state
+    ///
+    fn selected(&self) -> bool;
+}

src/logger.rs

@@ -1,28 +1,60 @@
-use glib::Sender;
-use gtk::glib;
-use once_cell::sync::Lazy;
-use once_cell::sync::OnceCell;
-use std::cell::RefCell;
-use std::fmt;
-use std::sync::{Arc, Mutex};
+// logger.rs
+//
+// Copyright 2022 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GstPipelineStudio
+//
+// SPDX-License-Identifier: GPL-3.0-only
 
-#[derive(Default)]
-struct Logger {
-    pub log_sender: OnceCell<Arc<Mutex<RefCell<Sender<String>>>>>,
-    pub log_level: OnceCell<LogLevel>,
+use log::{debug, error, info, trace, warn};
+use simplelog::*;
+use std::fmt;
+use std::io;
+
+use std::fs::File;
+
+use chrono::Local;
+use std::sync::Mutex;
+
+lazy_static::lazy_static! {
+    static ref MSG_LOGGER: Mutex<Option<MessageLogger>> = Mutex::new(None);
 }
 
 #[derive(Debug, Eq, Ord, PartialEq, PartialOrd)]
+
 pub enum LogLevel {
+    Off,
     Error,
     Warning,
     Info,
-    Log,
     Debug,
+    Trace,
 }
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum LogType {
+    App,
+    Gst,
+    Message,
+}
+
+impl LogLevel {
+    pub fn from_u32(value: u32) -> LogLevel {
+        match value {
+            0 => LogLevel::Off,
+            1 => LogLevel::Error,
+            2 => LogLevel::Warning,
+            3 => LogLevel::Info,
+            4 => LogLevel::Debug,
+            5 => LogLevel::Trace,
+            _ => panic!("Unknown value: {}", value),
+        }
+    }
+}
+
 impl fmt::Display for LogLevel {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{:?}", self)
+        write!(f, "{self:?}")
     }
 }
 
@@ -30,7 +62,7 @@ impl fmt::Display for LogLevel {
 macro_rules! GPS_ERROR (
     () => ($crate::print!("\n"));
     ($($arg:tt)*) => ({
-        logger::print_log(logger::LogLevel::Error, format_args!($($arg)*).to_string());
+        logger::print_log(logger::LogLevel::Error, format!("{}\t{}",glib::function_name!(),format_args!($($arg)*).to_string()));
     })
 );
 
@@ -38,7 +70,7 @@ macro_rules! GPS_ERROR (
 macro_rules! GPS_WARN (
     () => ($crate::print!("\n"));
     ($($arg:tt)*) => ({
-        logger::print_log(logger::LogLevel::Warning, format_args!($($arg)*).to_string());
+        logger::print_log(logger::LogLevel::Warning, format!("{}\t{}",glib::function_name!(),format_args!($($arg)*).to_string()));
     })
 );
 
@@ -46,15 +78,7 @@ macro_rules! GPS_WARN (
 macro_rules! GPS_INFO (
     () => ($crate::print!("\n"));
     ($($arg:tt)*) => ({
-        logger::print_log(logger::LogLevel::Info, format_args!($($arg)*).to_string());
-    })
-);
-
-#[macro_export]
-macro_rules! GPS_LOG (
-    () => ($crate::print!("\n"));
-    ($($arg:tt)*) => ({
-        logger::print_log(logger::LogLevel::Log, format_args!($($arg)*).to_string());
+        logger::print_log(logger::LogLevel::Info, format!("{}\t{}",glib::function_name!(),format_args!($($arg)*).to_string()));
     })
 );
 
@@ -62,36 +86,148 @@ macro_rules! GPS_LOG (
 macro_rules! GPS_DEBUG (
     () => ($crate::print!("\n"));
     ($($arg:tt)*) => ({
-        logger::print_log(logger::LogLevel::Debug, format_args!($($arg)*).to_string());
+        logger::print_log(logger::LogLevel::Debug, format!("{}\t{}",glib::function_name!(),format_args!($($arg)*).to_string()));
     })
 );
 
-static LOGGER: Lazy<Logger> = Lazy::new(Logger::default);
+#[macro_export]
+macro_rules! GPS_MSG_LOG (
+    () => ($crate::print!("\n"));
+    ($($arg:tt)*) => ({
+        logger::print_msg_logger(logger::LogType::Message, format_args!($($arg)*).to_string());
+    })
+);
 
-pub fn init_logger(sender: Sender<String>, log_level: LogLevel) {
-    LOGGER
-        .log_sender
-        .set(Arc::new(Mutex::new(RefCell::new(sender))))
-        .expect("init logger should be called once");
-    let _ = LOGGER.log_level.set(log_level);
+#[macro_export]
+macro_rules! GPS_GST_LOG (
+    () => ($crate::print!("\n"));
+    ($($arg:tt)*) => ({
+        logger::print_msg_logger(logger::LogType::Gst, format_args!($($arg)*).to_string());
+    })
+);
+
+#[macro_export]
+macro_rules! GPS_TRACE (
+    () => ($crate::print!("\n"));
+    ($($arg:tt)*) => ({
+        logger::print_log(logger::LogLevel::Trace, format_args!($($arg)*).to_string());
+    })
+);
+
+struct WriteAdapter {
+    sender: async_channel::Sender<(LogType, String)>,
+    buffer: String,
+}
+
+impl io::Write for WriteAdapter {
+    // On write we forward each u8 of the buffer to the sender and return the length of the buffer
+    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
+        self.buffer
+            .push_str(&String::from_utf8(buf.to_vec()).unwrap());
+        if self.buffer.ends_with('\n') {
+            self.buffer.pop();
+            let _ = self.sender.try_send((LogType::App, self.buffer.clone()));
+            self.buffer.clear();
+        }
+
+        Ok(buf.len())
+    }
+
+    fn flush(&mut self) -> io::Result<()> {
+        Ok(())
+    }
+}
+
+fn translate_to_simple_logger(log_level: LogLevel) -> LevelFilter {
+    match log_level {
+        LogLevel::Off => LevelFilter::Off,
+        LogLevel::Error => LevelFilter::Error,
+        LogLevel::Warning => LevelFilter::Warn,
+        LogLevel::Info => LevelFilter::Info,
+        LogLevel::Debug => LevelFilter::Debug,
+        LogLevel::Trace => LevelFilter::Trace,
+    }
+}
+
+pub fn init_logger(sender: async_channel::Sender<(LogType, String)>, log_file: &str) {
+    simplelog::CombinedLogger::init(vec![
+        WriteLogger::new(
+            translate_to_simple_logger(LogLevel::Trace),
+            Config::default(),
+            File::create(log_file).unwrap_or_else(|_| panic!("Unable to create log {}", log_file)),
+        ),
+        WriteLogger::new(
+            translate_to_simple_logger(LogLevel::Debug),
+            Config::default(),
+            WriteAdapter {
+                sender,
+                buffer: String::from(""),
+            },
+        ),
+        TermLogger::new(
+            LevelFilter::Info,
+            Config::default(),
+            TerminalMode::Mixed,
+            ColorChoice::Auto,
+        ),
+    ])
+    .unwrap();
+}
+
+pub fn set_log_level(level: LogLevel) {
+    log::set_max_level(translate_to_simple_logger(level));
 }
 
 pub fn print_log(log_level: LogLevel, msg: String) {
-    if log_level
-        <= *LOGGER
-            .log_level
-            .get()
-            .expect("Logger should be initialized before calling print_log")
-    {
-        let mut sender = LOGGER
-            .log_sender
-            .get()
-            .expect("Logger should be initialized before calling print_log")
-            .lock()
-            .expect("guarded");
+    match log_level {
+        LogLevel::Error => {
+            error!("{}", msg);
+        }
+        LogLevel::Warning => {
+            warn!("{}", msg);
+        }
+        LogLevel::Info => {
+            info!("{}", msg);
+        }
+        LogLevel::Debug => {
+            debug!("{}", msg);
+        }
+        LogLevel::Trace => {
+            trace!("{}", msg);
+        }
+        _ => {}
+    };
+}
 
-        if let Err(e) = sender.get_mut().send(format!("{}\t{}", log_level, msg)) {
-            println!("Error: {} for {}", e, msg);
-        };
+#[derive(Debug, Clone)]
+pub struct MessageLogger {
+    sender: async_channel::Sender<(LogType, String)>,
+}
+
+impl MessageLogger {
+    pub fn new(sender: async_channel::Sender<(LogType, String)>) -> Self {
+        Self { sender }
+    }
+
+    pub fn print_log(&self, log_type: LogType, msg: String) {
+        let to_send = format!("{}\t{}", Local::now().format("%H:%M:%S"), msg);
+        self.sender
+            .try_send((log_type, to_send))
+            .expect("Unable to send the log");
+    }
+}
+
+pub fn init_msg_logger(sender: async_channel::Sender<(LogType, String)>) {
+    let mut msg_logger = MSG_LOGGER.lock().unwrap();
+    if msg_logger.is_none() {
+        // Initialize the variable
+        *msg_logger = Some(MessageLogger::new(sender));
+    }
+}
+
+pub fn print_msg_logger(log_type: LogType, msg: String) {
+    let msg_logger = MSG_LOGGER.lock().unwrap();
+    if let Some(logger) = msg_logger.as_ref() {
+        logger.print_log(log_type, msg);
     }
 }

src/main.rs

@@ -1,46 +1,50 @@
 // main.rs
 //
-// Copyright 2021 Tom A. Wagner <tom.a.wagner@protonmail.com>
 // Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
 //
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// This file is part of GstPipelineStudio
 //
 // SPDX-License-Identifier: GPL-3.0-only
+
 #[macro_use]
 mod macros;
-mod about;
 mod app;
 mod common;
 mod config;
+mod graphbook;
 mod graphmanager;
+mod ui;
 #[macro_use]
 mod logger;
-mod pipeline;
-mod plugindialogs;
+mod gps;
 mod settings;
 use gtk::prelude::*;
 
 use crate::app::GPSApp;
 use crate::common::init;
+use structopt::StructOpt;
+
+#[derive(StructOpt, Debug)]
+struct Command {
+    #[structopt(about = "Sets the pipeline description", default_value = "")]
+    pipeline: String,
+}
 
 fn main() {
     //    gio::resources_register_include!("compiled.gresource").unwrap();
     init().expect("Unable to init app");
-    let application = gtk::Application::new(Some(config::APP_ID), Default::default());
+    let application = gtk::Application::new(
+        Some(config::APP_ID),
+        gtk::gio::ApplicationFlags::HANDLES_COMMAND_LINE,
+    );
     application.connect_startup(|application| {
-        GPSApp::on_startup(application);
+        let args = Command::from_args();
+        GPSApp::on_startup(application, &args.pipeline);
     });
 
+    application.connect_command_line(|_app, _cmd_line| {
+        // structopt already handled arguments
+        0
+    });
     application.run();
 }

src/meson.build

@@ -1,6 +1,5 @@
 conf = configuration_data()
 conf.set_quoted('APP_ID', application_id)
-conf.set_quoted('VERSION', version + version_suffix)
 
 configure_file(
     input: 'config.rs.in',
@@ -9,48 +8,56 @@ configure_file(
 )
 
 # Copy the config.rs output to the source directory.
-run_command(
-  'cp',
-  join_paths(meson.build_root(), 'src', 'config.rs'),
-  join_paths(meson.source_root(), 'src', 'config.rs'),
-  check: true
-)
+run_command(python3, '-c', 'import shutil; shutil.copyfile("@0@", "@1@")'.format(join_paths(meson.project_build_root(), 'src', 'config.rs'), join_paths(meson.project_source_root(), 'src', 'config.rs')))
 
 rust_sources = files(
+  'gps/player.rs',
+  'gps/element.rs',
+  'gps/pad.rs',
+  'gps/mod.rs',
   'graphmanager/graphview.rs',
   'graphmanager/link.rs',
   'graphmanager/mod.rs',
   'graphmanager/node.rs',
   'graphmanager/port.rs',
-  'about.rs',
+  'ui/about.rs',
+  'ui/elements.rs',
+  'ui/logger.rs',
+  'ui/message.rs',
+  'ui/mod.rs',
+  'ui/properties.rs',
+  'ui/treeview.rs',
   'app.rs',
   'common.rs',
   'logger.rs',
   'macros.rs',
   'main.rs',
-  'pipeline.rs',
-  'plugindialogs.rs',
   'settings.rs',
-
 )
 
 sources = [cargo_sources, rust_sources]
 
-cargo_script = find_program(join_paths(meson.source_root(), 'build-aux/cargo.sh'))
+cargo_script = find_program(join_paths(meson.project_source_root(), 'build-aux/cargo.py'))
+
+app_name = meson.project_name()
+if host_system == 'windows'
+  app_name += '.exe'
+endif
+
 cargo_release = custom_target(
   'cargo-build',
   build_by_default: true,
   input: sources,
-  output: meson.project_name(),
+  output: app_name,
   console: true,
   install: true,
   install_dir: get_option('bindir'),
   command: [
     cargo_script,
-    meson.build_root(),
-    meson.source_root(),
+    meson.project_build_root(),
+    meson.project_source_root(),
     '@OUTPUT@',
     get_option('buildtype'),
-    meson.project_name(),
+    app_name,
   ]
 )

src/pipeline.rs

@@ -1,449 +0,0 @@
-// pipeline.rs
-//
-// Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-// SPDX-License-Identifier: GPL-3.0-only
-use crate::app::GPSApp;
-use crate::graphmanager::{GraphView, Node, NodeType, PortDirection};
-use crate::logger;
-use crate::GPS_INFO;
-
-use gst::prelude::*;
-use gstreamer as gst;
-use std::cell::{Cell, RefCell};
-use std::collections::HashMap;
-use std::fmt;
-use std::ops;
-use std::rc::{Rc, Weak};
-
-#[derive(Debug, Eq, Ord, PartialEq, PartialOrd)]
-pub struct ElementInfo {
-    pub name: Option<String>,
-    plugin_name: Option<String>,
-    rank: i32,
-}
-
-impl Default for ElementInfo {
-    fn default() -> ElementInfo {
-        ElementInfo {
-            name: None,
-            plugin_name: None,
-            rank: -1,
-        }
-    }
-}
-
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub enum PipelineState {
-    Playing,
-    Paused,
-    Stopped,
-}
-
-impl fmt::Display for PipelineState {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{:?}", self)
-    }
-}
-
-#[derive(Debug, Clone)]
-pub struct Pipeline(Rc<PipelineInner>);
-
-// Deref into the contained struct to make usage a bit more ergonomic
-impl ops::Deref for Pipeline {
-    type Target = PipelineInner;
-
-    fn deref(&self) -> &PipelineInner {
-        &*self.0
-    }
-}
-
-#[derive(Debug, Clone)]
-pub struct PipelineWeak(Weak<PipelineInner>);
-
-impl PipelineWeak {
-    pub fn upgrade(&self) -> Option<Pipeline> {
-        self.0.upgrade().map(Pipeline)
-    }
-}
-
-#[derive(Debug)]
-pub struct PipelineInner {
-    pipeline: RefCell<Option<gst::Pipeline>>,
-    current_state: Cell<PipelineState>,
-}
-
-impl Pipeline {
-    pub fn new() -> anyhow::Result<Self> {
-        let pipeline = Pipeline(Rc::new(PipelineInner {
-            pipeline: RefCell::new(None),
-            current_state: Cell::new(PipelineState::Stopped),
-        }));
-
-        Ok(pipeline)
-    }
-
-    pub fn create_pipeline(&self, description: &str) -> anyhow::Result<()> {
-        GPS_INFO!("Creating pipeline {}", description);
-
-        // Create pipeline from the description
-        let pipeline = gst::parse_launch(&description.to_string())?;
-        if let Ok(pipeline) = pipeline.downcast::<gst::Pipeline>() {
-            let bus = pipeline.bus().expect("Pipeline had no bus");
-            let pipeline_weak = self.downgrade();
-            bus.add_watch_local(move |_bus, msg| {
-                let pipeline = upgrade_weak!(pipeline_weak, glib::Continue(false));
-                pipeline.on_pipeline_message(msg);
-                glib::Continue(true)
-            })?;
-
-            *self.pipeline.borrow_mut() = Some(pipeline);
-            /* start playing */
-        } else {
-            GPS_ERROR!("Can not create a proper pipeline from gstreamer parse_launch");
-        }
-        Ok(())
-    }
-
-    pub fn start_pipeline(
-        &self,
-        graphview: &GraphView,
-        new_state: PipelineState,
-    ) -> anyhow::Result<PipelineState> {
-        if self.state() == PipelineState::Stopped {
-            self.create_pipeline(&self.render_gst_launch(graphview))
-                .map_err(|err| {
-                    GPS_ERROR!("Unable to start a pipeline: {}", err);
-                })
-                .unwrap();
-            self.set_state(new_state)
-                .map_err(|_| GPS_ERROR!("Unable to change state"))
-                .unwrap();
-        } else if self.state() == PipelineState::Paused {
-            self.set_state(PipelineState::Playing)
-                .map_err(|_| GPS_ERROR!("Unable to change state"))
-                .unwrap();
-        } else {
-            self.set_state(PipelineState::Paused)
-                .map_err(|_| GPS_ERROR!("Unable to change state"))
-                .unwrap();
-        }
-
-        Ok(self.state())
-    }
-
-    pub fn set_state(&self, new_state: PipelineState) -> anyhow::Result<PipelineState> {
-        if let Some(pipeline) = self.pipeline.borrow().to_owned() {
-            match new_state {
-                PipelineState::Playing => pipeline.set_state(gst::State::Playing)?,
-                PipelineState::Paused => pipeline.set_state(gst::State::Paused)?,
-                PipelineState::Stopped => {
-                    pipeline.set_state(gst::State::Null)?;
-                    gst::StateChangeSuccess::Success
-                }
-            };
-            self.current_state.set(new_state);
-        }
-        Ok(new_state)
-    }
-
-    pub fn state(&self) -> PipelineState {
-        self.current_state.get()
-    }
-
-    pub fn downgrade(&self) -> PipelineWeak {
-        PipelineWeak(Rc::downgrade(&self.0))
-    }
-
-    fn on_pipeline_message(&self, msg: &gst::MessageRef) {
-        use gst::MessageView;
-        match msg.view() {
-            MessageView::Error(err) => {
-                GPS_ERROR!(
-                    "Error from {:?}: {} ({:?})",
-                    err.src().map(|s| s.path_string()),
-                    err.error(),
-                    err.debug()
-                );
-                GPSApp::show_error_dialog(
-                    false,
-                    format!(
-                        "Error from {:?}: {} ({:?})",
-                        err.src().map(|s| s.path_string()),
-                        err.error(),
-                        err.debug()
-                    )
-                    .as_str(),
-                );
-            }
-            MessageView::Application(msg) => match msg.structure() {
-                // Here we can send ourselves messages from any thread and show them to the user in
-                // the UI in case something goes wrong
-                Some(s) if s.name() == "warning" => {
-                    let text = s.get::<&str>("text").expect("Warning message without text");
-                    GPS_WARN!("{}", text);
-                }
-                _ => (),
-            },
-            _ => (),
-        };
-    }
-
-    pub fn elements_list() -> anyhow::Result<Vec<ElementInfo>> {
-        let registry = gst::Registry::get();
-        let mut elements: Vec<ElementInfo> = Vec::new();
-        let plugins = gst::Registry::plugin_list(&registry);
-        for plugin in plugins {
-            let plugin_name = gst::Plugin::plugin_name(&plugin);
-            let features = gst::Registry::feature_list_by_plugin(&registry, &plugin_name);
-            for feature in features {
-                let mut element = ElementInfo::default();
-                if let Ok(factory) = feature.downcast::<gst::ElementFactory>() {
-                    let feature = factory.upcast::<gst::PluginFeature>();
-
-                    element.name = Some(gst::PluginFeature::name(&feature).as_str().to_owned());
-                    element.plugin_name =
-                        Some(gst::Plugin::plugin_name(&plugin).as_str().to_owned());
-                    elements.push(element);
-                }
-            }
-        }
-        elements.sort();
-        Ok(elements)
-    }
-
-    fn element_feature(element_name: &str) -> Option<gst::PluginFeature> {
-        let registry = gst::Registry::get();
-        gst::Registry::find_feature(&registry, element_name, gst::ElementFactory::static_type())
-    }
-
-    pub fn element_description(element_name: &str) -> anyhow::Result<String> {
-        let mut desc = String::from("");
-        let feature = Pipeline::element_feature(element_name)
-            .ok_or_else(|| glib::bool_error!("Failed get element feature"))?;
-
-        if let Ok(factory) = feature.downcast::<gst::ElementFactory>() {
-            desc.push_str("<b>Factory details:</b>\n");
-            desc.push_str("<b>Name:</b>");
-            desc.push_str(&factory.name());
-            desc.push('\n');
-
-            let element_keys = factory.metadata_keys();
-            for key in element_keys {
-                let val = factory.metadata(&key);
-                if let Some(val) = val {
-                    desc.push_str("<b>");
-                    desc.push_str(&key);
-                    desc.push_str("</b>:");
-                    desc.push_str(&gtk::glib::markup_escape_text(&val).to_string());
-                    desc.push('\n');
-                }
-            }
-            let feature = factory.upcast::<gst::PluginFeature>();
-            let plugin = gst::PluginFeature::plugin(&feature);
-            if let Some(plugin) = plugin {
-                desc.push('\n');
-                desc.push_str("<b>Plugin details:</b>");
-                desc.push('\n');
-                desc.push_str("<b>Name:");
-                desc.push_str("</b>");
-                desc.push_str(gst::Plugin::plugin_name(&plugin).as_str());
-                desc.push('\n');
-                desc.push_str("<b>Description:");
-                desc.push_str("</b>");
-                desc.push_str(&gtk::glib::markup_escape_text(&plugin.description()).to_string());
-                desc.push('\n');
-                desc.push_str("<b>Filename:");
-                desc.push_str("</b>");
-                desc.push_str(
-                    &gtk::glib::markup_escape_text(
-                        &plugin.filename().unwrap().as_path().display().to_string(),
-                    )
-                    .to_string(),
-                );
-                desc.push('\n');
-                desc.push_str("<b>Version:");
-                desc.push_str("</b>");
-                desc.push_str(&gtk::glib::markup_escape_text(&plugin.version()).to_string());
-                desc.push('\n');
-            }
-        }
-        Ok(desc)
-    }
-
-    pub fn pads(element_name: &str, include_on_request: bool) -> (u32, u32) {
-        let feature = Pipeline::element_feature(element_name).expect("Unable to get feature");
-        let mut input = 0;
-        let mut output = 0;
-
-        if let Ok(factory) = feature.downcast::<gst::ElementFactory>() {
-            if factory.num_pad_templates() > 0 {
-                let pads = factory.static_pad_templates();
-                for pad in pads {
-                    if pad.presence() == gst::PadPresence::Always
-                        || (include_on_request
-                            && (pad.presence() == gst::PadPresence::Request
-                                || pad.presence() == gst::PadPresence::Sometimes))
-                    {
-                        if pad.direction() == gst::PadDirection::Src {
-                            output += 1;
-                        } else if pad.direction() == gst::PadDirection::Sink {
-                            input += 1;
-                        }
-                    }
-                }
-            }
-        }
-        (input, output)
-    }
-
-    pub fn element_type(element_name: &str) -> NodeType {
-        let pads = Pipeline::pads(element_name, true);
-        let mut element_type = NodeType::Source;
-        if pads.0 > 0 {
-            if pads.1 > 0 {
-                element_type = NodeType::Transform;
-            } else {
-                element_type = NodeType::Sink;
-            }
-        } else if pads.1 > 0 {
-            element_type = NodeType::Source;
-        }
-
-        element_type
-    }
-
-    fn value_as_str(v: &glib::Value) -> Option<String> {
-        match v.type_() {
-            glib::Type::I8 => Some(str_some_value!(v, i8).to_string()),
-            glib::Type::U8 => Some(str_some_value!(v, u8).to_string()),
-            glib::Type::BOOL => Some(str_some_value!(v, bool).to_string()),
-            glib::Type::I32 => Some(str_some_value!(v, i32).to_string()),
-            glib::Type::U32 => Some(str_some_value!(v, u32).to_string()),
-            glib::Type::I64 => Some(str_some_value!(v, i64).to_string()),
-            glib::Type::U64 => Some(str_some_value!(v, u64).to_string()),
-            glib::Type::F32 => Some(str_some_value!(v, f32).to_string()),
-            glib::Type::F64 => Some(str_some_value!(v, f64).to_string()),
-            glib::Type::STRING => str_opt_value!(v, String),
-            _ => None,
-        }
-    }
-
-    pub fn element_properties(element_name: &str) -> anyhow::Result<HashMap<String, String>> {
-        let mut properties_list = HashMap::new();
-        let feature = Pipeline::element_feature(element_name).expect("Unable to get feature");
-
-        let factory = feature
-            .downcast::<gst::ElementFactory>()
-            .expect("Unable to get the factory from the feature");
-        let element = factory.create(None)?;
-        let params = element.class().list_properties();
-
-        for param in params {
-            GPS_INFO!("Property_name {}", param.name());
-            if (param.flags() & glib::ParamFlags::READABLE) == glib::ParamFlags::READABLE
-                || (param.flags() & glib::ParamFlags::READWRITE) == glib::ParamFlags::READWRITE
-            {
-                let value = Pipeline::value_as_str(&element.property(param.name()).unwrap())
-                    .unwrap_or_else(|| String::from(""));
-                properties_list.insert(String::from(param.name()), value);
-            } else if let Some(value) = Pipeline::value_as_str(param.default_value()) {
-                properties_list.insert(String::from(param.name()), value);
-            } else {
-                GPS_INFO!("Unable to add property_name {}", param.name());
-            }
-        }
-        Ok(properties_list)
-    }
-
-    pub fn element_is_uri_src_handler(element_name: &str) -> bool {
-        let feature = Pipeline::element_feature(element_name).expect("Unable to get feature");
-
-        let factory = feature
-            .downcast::<gst::ElementFactory>()
-            .expect("Unable to get the factory from the feature");
-        let element = factory
-            .create(None)
-            .expect("Unable to create an element from the feature");
-        match element.dynamic_cast::<gst::URIHandler>() {
-            Ok(uri_handler) => uri_handler.uri_type() == gst::URIType::Src,
-            Err(_e) => false,
-        }
-    }
-
-    // Render graph methods
-    fn process_gst_node(
-        &self,
-        graphview: &GraphView,
-        node: &Node,
-        elements: &mut HashMap<String, String>,
-        mut description: String,
-    ) -> String {
-        let unique_name = node.unique_name();
-        description.push_str(&format!("{} name={} ", node.name(), unique_name));
-        elements.insert(unique_name.clone(), unique_name.clone());
-        for (name, value) in node.properties().iter() {
-            description.push_str(&format!("{}={}", name, value));
-        }
-
-        let ports = node.all_ports(PortDirection::Output);
-        let n_ports = ports.len();
-        for port in ports {
-            if let Some((_port_to, node_to)) = graphview.port_connected_to(port.id()) {
-                if n_ports > 1 {
-                    description.push_str(&format!("{}. ! ", unique_name));
-                } else {
-                    description.push_str("! ");
-                }
-                if let Some(node) = graphview.node(&node_to) {
-                    if elements.contains_key(&node.unique_name()) {
-                        description.push_str(&format!("{}. ", node.unique_name()));
-                    } else {
-                        description =
-                            self.process_gst_node(graphview, &node, elements, description.clone());
-                    }
-                }
-            }
-        }
-        description
-    }
-
-    pub fn render_gst_launch(&self, graphview: &GraphView) -> String {
-        let source_nodes = graphview.all_nodes(NodeType::Source);
-        let mut elements: HashMap<String, String> = HashMap::new();
-        let mut description = String::from("");
-        for source_node in source_nodes {
-            description =
-                self.process_gst_node(graphview, &source_node, &mut elements, description.clone());
-        }
-        description
-    }
-}
-
-impl Drop for PipelineInner {
-    fn drop(&mut self) {
-        // TODO: If a recording is currently running we would like to finish that first
-        // before quitting the pipeline and shutting down the pipeline.
-        if let Some(pipeline) = self.pipeline.borrow().to_owned() {
-            // We ignore any errors here
-            let _ = pipeline.set_state(gst::State::Null);
-
-            // Remove the message watch from the bus
-            let bus = pipeline.bus().expect("Pipeline had no bus");
-            let _ = bus.remove_watch();
-        }
-    }
-}

src/plugindialogs.rs

@@ -1,180 +0,0 @@
-// plugindialogs.rs
-//
-// Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-// SPDX-License-Identifier: GPL-3.0-only
-use crate::app::GPSApp;
-use crate::logger;
-use crate::pipeline::ElementInfo;
-use crate::pipeline::Pipeline;
-use gtk::glib;
-use gtk::prelude::*;
-use gtk::TextBuffer;
-use std::cell::RefCell;
-use std::collections::HashMap;
-use std::rc::Rc;
-
-use gtk::{
-    Box, Button, CellRendererText, Dialog, Entry, Label, ListStore, TextView, TreeView,
-    TreeViewColumn,
-};
-
-fn create_and_fill_model(elements: &[ElementInfo]) -> ListStore {
-    // Creation of a model with two rows.
-    let model = ListStore::new(&[u32::static_type(), String::static_type()]);
-
-    // Filling up the tree view.
-    for (i, entry) in elements.iter().enumerate() {
-        model.insert_with_values(
-            None,
-            &[(0, &(i as u32 + 1)), (1, &entry.name.as_ref().unwrap())],
-        );
-    }
-
-    model
-}
-
-fn append_column(tree: &TreeView, id: i32) {
-    let column = TreeViewColumn::new();
-    let cell = CellRendererText::new();
-
-    column.pack_start(&cell, true);
-    // Association of the view's column with the model's `id` column.
-    column.add_attribute(&cell, "text", id);
-    tree.append_column(&column);
-}
-
-pub fn display_plugin_list(app: &GPSApp, elements: &[ElementInfo]) {
-    let dialog: Dialog = app
-        .builder
-        .object("dialog-plugin-list")
-        .expect("Couldn't get the dialog-plugin-list window");
-
-    if app.plugin_list_initialized.get().is_none() {
-        dialog.set_title(Some("Plugin list"));
-        dialog.set_default_size(640, 480);
-
-        let text_view: TextView = app
-            .builder
-            .object("textview-plugin-list")
-            .expect("Couldn't get textview-plugin-list window");
-        let text_buffer: TextBuffer = text_view.buffer();
-
-        let tree: TreeView = app
-            .builder
-            .object("treeview-plugin-list")
-            .expect("Couldn't get treeview-plugin-list window");
-        if tree.n_columns() < 2 {
-            append_column(&tree, 0);
-            append_column(&tree, 1);
-        }
-        tree.set_search_column(1);
-        let model = create_and_fill_model(elements);
-        // Setting the model into the view.
-        tree.set_model(Some(&model));
-
-        // The closure responds to selection changes by connection to "::cursor-changed" signal,
-        // that gets emitted when the cursor moves (focus changes).
-        tree.connect_cursor_changed(glib::clone!(@weak dialog, @weak text_buffer => move |tree_view| {
-            let selection = tree_view.selection();
-            if let Some((model, iter)) = selection.selected() {
-                let element_name = model
-                .get(&iter, 1)
-                .get::<String>()
-                .expect("Unable to get the treeview selection, column 1");
-                let description = Pipeline::element_description(&element_name).expect("Unable to get element description from GStreamer");
-                text_buffer.set_text("");
-                text_buffer.insert_markup(&mut text_buffer.end_iter(), &description);
-            }
-
-        }));
-        let app_weak = app.downgrade();
-        tree.connect_row_activated(
-            glib::clone!(@weak dialog => move |tree_view, _tree_path, _tree_column| {
-                let app = upgrade_weak!(app_weak);
-                let selection = tree_view.selection();
-                if let Some((model, iter)) = selection.selected() {
-                    let element_name = model
-                    .get(&iter, 1)
-                    .get::<String>()
-                    .expect("Unable to get the treeview selection, column 1");
-                    app.add_new_element(&element_name);
-                }
-            }),
-        );
-        app.plugin_list_initialized.set(true).unwrap();
-    }
-
-    dialog.show();
-}
-
-pub fn display_plugin_properties(app: &GPSApp, element_name: &str, node_id: u32) {
-    let dialog: Dialog = app
-        .builder
-        .object("dialog-plugin-properties")
-        .expect("Couldn't get dialog-plugin-properties");
-
-    dialog.set_title(Some(&format!("{} properties", element_name)));
-    dialog.set_default_size(640, 480);
-    dialog.set_modal(true);
-
-    let properties_box: Box = app
-        .builder
-        .object("box-plugin-properties")
-        .expect("Couldn't get box-plugin-properties");
-    let update_properties: Rc<RefCell<HashMap<String, String>>> =
-        Rc::new(RefCell::new(HashMap::new()));
-    let properties = Pipeline::element_properties(element_name).unwrap();
-    for (name, value) in properties {
-        let entry_box = Box::new(gtk::Orientation::Horizontal, 6);
-        let label = Label::new(Some(&name));
-        label.set_hexpand(true);
-        label.set_halign(gtk::Align::Start);
-        label.set_margin_start(4);
-        entry_box.append(&label);
-        let entry: Entry = Entry::new();
-        entry.set_text(&value);
-        entry.set_hexpand(true);
-        entry.set_halign(gtk::Align::Start);
-        entry.set_widget_name(&name);
-        entry.connect_changed(
-            glib::clone!(@weak entry, @strong update_properties => move |_| {
-                GPS_LOG!("{}:{}", entry.widget_name(), entry.text());
-                update_properties.borrow_mut().insert(entry.widget_name().to_string(), entry.text().to_string());
-            }),
-        );
-        entry_box.append(&entry);
-        properties_box.append(&entry_box);
-    }
-    let properties_apply_btn: Button = app
-        .builder
-        .object("button-apply-plugin-properties")
-        .expect("Couldn't get button-apply-plugin-properties");
-
-    let app_weak = app.downgrade();
-    properties_apply_btn.connect_clicked(
-        glib::clone!(@strong update_properties, @weak dialog => move |_| {
-            let app = upgrade_weak!(app_weak);
-            app.update_element_properties(node_id, &update_properties.borrow());
-            dialog.close();
-        }),
-    );
-
-    dialog.show();
-    for p in update_properties.borrow().values() {
-        GPS_LOG!("updated properties {}", p);
-    }
-}

src/settings.rs

@@ -1,3 +1,13 @@
+// settings.rs
+//
+// Copyright 2022 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GstPipelineStudio
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+use gtk::glib;
+use std::collections::HashMap;
 use std::fs::create_dir_all;
 use std::path::PathBuf;
 
@@ -7,42 +17,80 @@ use crate::config;
 use crate::logger;
 
 #[derive(Debug, Serialize, Deserialize, Default)]
+#[serde(default)]
 pub struct Settings {
-    pub favorites: Vec<String>,
     pub app_maximized: bool,
     pub app_width: i32,
     pub app_height: i32,
-    pub app_graph_logs_paned_pos: i32,
-    pub app_graph_favorites_paned_pos: i32,
+    pub recent_pipeline: String,
+
+    // values must be emitted before tables
+    pub favorites: Vec<String>,
+    pub paned_positions: HashMap<String, i32>,
+    pub preferences: HashMap<String, String>,
 }
 
 impl Settings {
-    fn settings_file_exist() {
-        let s = Settings::get_settings_file_path();
-
+    fn create_path_if_not(s: &PathBuf) {
         if !s.exists() {
-            if let Some(parent_dir) = s.parent() {
-                if !parent_dir.exists() {
-                    if let Err(e) = create_dir_all(parent_dir) {
-                        GPS_ERROR!(
-                            "Error while trying to build settings snapshot_directory '{}': {}",
-                            parent_dir.display(),
-                            e
-                        );
-                    }
-                }
+            if let Err(e) = create_dir_all(s) {
+                GPS_ERROR!(
+                    "Error while trying to build settings snapshot_directory '{}': {}",
+                    s.display(),
+                    e
+                );
             }
         }
     }
 
-    fn get_settings_file_path() -> PathBuf {
+    fn default_app_folder() -> PathBuf {
         let mut path = glib::user_config_dir();
         path.push(config::APP_ID);
-        path.push("settings.toml");
         path
     }
 
+    fn settings_file_path() -> PathBuf {
+        let mut path = Settings::default_app_folder();
+        Settings::create_path_if_not(&path);
+        path.push("settings.toml");
+        path
+    }
     // Public methods
+    pub fn graph_file_path() -> PathBuf {
+        let mut path = Settings::default_app_folder();
+        Settings::create_path_if_not(&path);
+        path.push("default_graph.toml");
+        path
+    }
+
+    pub fn log_file_path() -> PathBuf {
+        let mut path = Settings::default_app_folder();
+        Settings::create_path_if_not(&path);
+        path.push("gstpipelinestudio.log");
+        path
+    }
+
+    pub fn gst_log_level() -> String {
+        let settings = Settings::load_settings();
+        let binding = "0".to_string();
+        let level = settings
+            .preferences
+            .get("gst_log_level")
+            .unwrap_or(&binding);
+        level.clone()
+    }
+
+    pub fn set_recent_pipeline_description(pipeline: &str) {
+        let mut settings = Settings::load_settings();
+        settings.recent_pipeline = pipeline.to_string();
+        Settings::save_settings(&settings);
+    }
+
+    pub fn recent_pipeline_description() -> String {
+        let settings = Settings::load_settings();
+        settings.recent_pipeline
+    }
+
     pub fn add_favorite(favorite: &str) {
         let mut settings = Settings::load_settings();
         settings.favorites.sort();
@@ -56,7 +104,7 @@ impl Settings {
         Settings::save_settings(&settings);
     }
 
-    pub fn get_favorites_list() -> Vec<String> {
+    pub fn favorites_list() -> Vec<String> {
         let mut favorites = Vec::new();
         let settings = Settings::load_settings();
         for fav in settings.favorites {
@@ -67,8 +115,7 @@ impl Settings {
 
     // Save the provided settings to the settings path
     pub fn save_settings(settings: &Settings) {
-        Settings::settings_file_exist();
-        let s = Settings::get_settings_file_path();
+        let s = Settings::settings_file_path();
         if let Err(e) = serde_any::to_file(&s, settings) {
             GPS_ERROR!("Error while trying to save file: {} {}", s.display(), e);
         }
@@ -76,7 +123,7 @@ impl Settings {
 
     // Load the current settings
     pub fn load_settings() -> Settings {
-        let s = Settings::get_settings_file_path();
+        let s = Settings::settings_file_path();
         if s.exists() && s.is_file() {
             match serde_any::from_file::<Settings, _>(&s) {
                 Ok(s) => s,
@@ -86,13 +133,27 @@ impl Settings {
                 }
             }
         } else {
-            Settings {
+            let mut settings = Settings {
                 app_width: 800,
                 app_height: 600,
-                app_graph_logs_paned_pos: 400,
-                app_graph_favorites_paned_pos: 600,
                 ..Default::default()
-            }
+            };
+            settings
+                .paned_positions
+                .insert(String::from("graph_dashboard-paned"), 600);
+            settings
+                .paned_positions
+                .insert(String::from("graph_logs-paned"), 400);
+            settings
+                .paned_positions
+                .insert(String::from("elements_preview-paned"), 300);
+            settings
+                .paned_positions
+                .insert(String::from("elements_properties-paned"), 150);
+            settings
+                .paned_positions
+                .insert(String::from("playcontrols_position-paned"), 400);
+            settings
         }
     }
 }

src/ui/about.rs

@@ -0,0 +1,41 @@
+// about.rs
+//
+// Copyright 2021 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GstPipelineStudio
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+use crate::app::GPSApp;
+use crate::config;
+use crate::gps as GPS;
+use gtk::prelude::*;
+use gtk::AboutDialog;
+
+use gtk::ApplicationWindow;
+
+pub fn display_about_dialog(app: &GPSApp) {
+    let window: ApplicationWindow = app
+        .builder
+        .object("mainwindow")
+        .expect("Couldn't get window");
+    let about_dialog = AboutDialog::builder()
+        .modal(true)
+        .program_name("GstPipelineStudio")
+        .version(config::VERSION)
+        .comments(format!(
+            "{}\n\n{}",
+            &"Draw your own GStreamer pipeline",
+            GPS::Player::get_version()
+        ))
+        .website("https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio")
+        .authors(vec!["Stéphane Cerveau".to_string()])
+        .artists(vec!["Stéphane Cerveau".to_string()])
+        .translator_credits("translator-credits")
+        .logo_icon_name(config::APP_ID)
+        .license_type(gtk::License::Gpl30)
+        .transient_for(&window)
+        .build();
+
+    about_dialog.show();
+}

src/ui/dialog.rs

@@ -0,0 +1,96 @@
+// dialog.rs
+//
+// Copyright 2022 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GstPipelineStudio
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+use crate::app::GPSApp;
+
+use gtk::glib;
+use gtk::prelude::*;
+
+pub fn create_dialog<F: Fn(GPSApp, gtk::Dialog) + 'static>(
+    name: &str,
+    app: &GPSApp,
+    grid: &gtk::Grid,
+    f: F,
+) -> gtk::Dialog {
+    let dialog =
+        gtk::Dialog::with_buttons(Some(name), Some(&app.window), gtk::DialogFlags::MODAL, &[]);
+
+    dialog.set_default_size(640, 480);
+    dialog.set_modal(true);
+    let app_weak = app.downgrade();
+    dialog.connect_response(glib::clone!(@weak dialog => move |_,_| {
+        let app = upgrade_weak!(app_weak);
+        f(app, dialog)
+    }));
+
+    let scrolledwindow = gtk::ScrolledWindow::builder()
+        .hexpand(true)
+        .vexpand(true)
+        .build();
+    scrolledwindow.set_child(Some(grid));
+    let content_area = dialog.content_area();
+    content_area.append(&scrolledwindow);
+    content_area.set_vexpand(true);
+    content_area.set_margin_start(10);
+    content_area.set_margin_end(10);
+    content_area.set_margin_top(10);
+    content_area.set_margin_bottom(10);
+
+    dialog
+}
+
+pub fn create_input_dialog<F: Fn(GPSApp, String) + 'static>(
+    dialog_name: &str,
+    input_name: &str,
+    default_value: &str,
+    app: &GPSApp,
+    f: F,
+) {
+    let dialog = gtk::Dialog::with_buttons(
+        Some(dialog_name),
+        Some(&app.window),
+        gtk::DialogFlags::MODAL,
+        &[("Ok", gtk::ResponseType::Apply)],
+    );
+    dialog.set_default_size(600, 100);
+    dialog.set_modal(true);
+
+    let label = gtk::Label::builder()
+        .label(input_name)
+        .hexpand(true)
+        .valign(gtk::Align::Center)
+        .halign(gtk::Align::Start)
+        .margin_start(4)
+        .build();
+
+    let entry = gtk::Entry::builder()
+        .width_request(400)
+        .valign(gtk::Align::Center)
+        .build();
+    entry.set_text(default_value);
+
+    let content_area = dialog.content_area();
+    content_area.set_orientation(gtk::Orientation::Horizontal);
+    content_area.set_vexpand(true);
+    content_area.set_margin_start(10);
+    content_area.set_margin_end(10);
+    content_area.set_margin_top(10);
+    content_area.set_margin_bottom(10);
+    content_area.append(&label);
+    content_area.append(&entry);
+    let app_weak = app.downgrade();
+    dialog.connect_response(glib::clone!(@weak entry => move |dialog, response_type| {
+        let app = upgrade_weak!(app_weak);
+        if response_type == gtk::ResponseType::Apply {
+            f(app, entry.text().to_string());
+        }
+        dialog.close()
+    }));
+
+    dialog.show();
+}

src/ui/elements.rs

@@ -0,0 +1,163 @@
+// elements.rs
+//
+// Copyright 2022 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GstPipelineStudio
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+use crate::app::GPSApp;
+use crate::gps as GPS;
+use crate::logger;
+use crate::settings::Settings;
+use crate::ui::treeview;
+use crate::GPS_DEBUG;
+use gtk::prelude::*;
+use gtk::{gdk::BUTTON_SECONDARY, Box, Label, ListStore, TreeView};
+use gtk::{gio, glib};
+
+pub fn reset_favorite_list(favorite_list: &TreeView) {
+    let model = ListStore::new(&[String::static_type()]);
+    favorite_list.set_model(Some(&model));
+    let favorites = Settings::favorites_list();
+    for favorite in favorites {
+        model.insert_with_values(None, &[(0, &favorite)]);
+    }
+}
+
+pub fn setup_favorite_list(app: &GPSApp) {
+    let favorite_list: TreeView = app
+        .builder
+        .object("treeview-favorites")
+        .expect("Couldn't get treeview-favorites");
+    treeview::add_column_to_treeview(app, "treeview-favorites", "Name", 0, false);
+    reset_favorite_list(&favorite_list);
+    let app_weak = app.downgrade();
+    favorite_list.connect_row_activated(move |tree_view, _tree_path, _tree_column| {
+        let app = upgrade_weak!(app_weak);
+        let selection = tree_view.selection();
+        if let Some((model, iter)) = selection.selected() {
+            let element_name = model.get::<String>(&iter, 0);
+            GPS_DEBUG!("{} selected", element_name);
+            app.add_new_element(&element_name);
+        }
+    });
+    let app_weak = app.downgrade();
+    favorite_list.connect_cursor_changed(move |tree_view| {
+        let app = upgrade_weak!(app_weak);
+        let selection = tree_view.selection();
+        if let Some((model, iter)) = selection.selected() {
+            let element_name = model.get::<String>(&iter, 0);
+            display_properties(&app, &element_name);
+        }
+    });
+    let gesture = gtk::GestureClick::new();
+    gesture.set_button(0);
+    let app_weak = app.downgrade();
+    gesture.connect_pressed(
+        glib::clone!(@weak favorite_list => move |gesture, _n_press, x, y| {
+            let app = upgrade_weak!(app_weak);
+            if gesture.current_button() == BUTTON_SECONDARY {
+                let selection = favorite_list.selection();
+                if let Some((model, iter)) = selection.selected() {
+                    let element_name = model
+                    .get::<String>(&iter, 0);
+                    GPS_DEBUG!("Element {} selected", element_name);
+
+                    let pop_menu = app.app_pop_menu_at_position(&favorite_list, x, y);
+                    let menu: gio::MenuModel = app
+                    .builder
+                    .object("fav_menu")
+                    .expect("Couldn't get fav_menu model");
+                    pop_menu.set_menu_model(Some(&menu));
+
+                    app.connect_app_menu_action("favorite.remove",
+                        move |_,_| {
+                            Settings::remove_favorite(&element_name);
+                            reset_favorite_list(&favorite_list);
+                        }
+                    );
+
+                    pop_menu.show();
+                }
+
+            }
+        }),
+    );
+    favorite_list.add_controller(gesture);
+}
+
+pub fn add_to_favorite_list(app: &GPSApp, element_name: String) {
+    let mut favorites = Settings::favorites_list();
+    favorites.sort();
+    if !favorites.contains(&element_name) {
+        let favorite_list: TreeView = app
+            .builder
+            .object("treeview-favorites")
+            .expect("Couldn't get treeview-favorites");
+        if let Some(model) = favorite_list.model() {
+            let list_store = model
+                .dynamic_cast::<ListStore>()
+                .expect("Could not cast to ListStore");
+            list_store.insert_with_values(None, &[(0, &element_name)]);
+            Settings::add_favorite(&element_name);
+        }
+    }
+}
+
+fn reset_elements_list(elements_list: &TreeView) {
+    let model = ListStore::new(&[String::static_type()]);
+    elements_list.set_model(Some(&model));
+    let elements = GPS::ElementInfo::elements_list().expect("Unable to obtain element's list");
+    for element in elements {
+        model.insert_with_values(None, &[(0, &element.name)]);
+    }
+}
+
+pub fn setup_elements_list(app: &GPSApp) {
+    let tree: TreeView = app
+        .builder
+        .object("treeview-elements")
+        .expect("Couldn't get treeview-elements");
+    treeview::add_column_to_treeview(app, "treeview-elements", "Name", 0, false);
+    reset_elements_list(&tree);
+    let app_weak = app.downgrade();
+    tree.connect_row_activated(move |tree_view, _tree_path, _tree_column| {
+        let app = upgrade_weak!(app_weak);
+        let selection = tree_view.selection();
+        if let Some((model, iter)) = selection.selected() {
+            let element_name = model.get::<String>(&iter, 0);
+            GPS_DEBUG!("{} selected", element_name);
+            app.add_new_element(&element_name);
+        }
+    });
+    let app_weak = app.downgrade();
+    tree.connect_cursor_changed(move |tree_view| {
+        let app = upgrade_weak!(app_weak);
+        let selection = tree_view.selection();
+        if let Some((model, iter)) = selection.selected() {
+            let element_name = model.get::<String>(&iter, 0);
+            display_properties(&app, &element_name);
+        }
+    });
+}
+
+pub fn display_properties(app: &GPSApp, element_name: &str) {
+    let description = GPS::ElementInfo::element_description(element_name)
+        .expect("Unable to get element description from GStreamer");
+    let box_property: Box = app
+        .builder
+        .object("box-property")
+        .expect("Couldn't get treeview-elements");
+
+    while let Some(child) = box_property.first_child() {
+        box_property.remove(&child);
+    }
+    let label = Label::new(Some(""));
+    label.set_hexpand(true);
+    label.set_halign(gtk::Align::Start);
+    label.set_margin_start(4);
+    label.set_markup(&description);
+    label.set_selectable(true);
+    box_property.append(&label);
+}

src/ui/gps.ui

@@ -0,0 +1,371 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <menu id="primary_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes" comments="Primary menu entry that opens a new window.">_New Window</attribute>
+        <attribute name="action">app.new-window</attribute>
+        <attribute name="accel">&lt;primary&gt;n</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes" comments="Primary menu entry that opens the graph">_Open</attribute>
+        <attribute name="action">app.open</attribute>
+        <attribute name="accel">&lt;primary&gt;o</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes" comments="Primary menu entry that opens a pipeline">_Open pipeline</attribute>
+        <attribute name="action">app.open_pipeline</attribute>
+        <attribute name="accel">&lt;primary&gt;p</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes" comments="Primary menu entry that saves the graph">_Save</attribute>
+        <attribute name="action">app.save</attribute>
+        <attribute name="accel">&lt;primary&gt;s</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes" comments="Primary menu entry that saves the graph">_Save As</attribute>
+        <attribute name="action">app.save_as</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes" comments="Primary menu entry that open the preferences">_Preferences</attribute>
+        <attribute name="action">app.preferences</attribute>
+        <attribute name="accel">&lt;primary&gt;p</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes" comments="Primary menu entry that opens the About dialog.">_About GstPipelineStudio</attribute>
+        <attribute name="action">app.about</attribute>
+      </item>
+    </section>
+  </menu>
+  <menu id="port_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes" comments="port menu entry properties">_Properties</attribute>
+        <attribute name="action">app.port.properties</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes" comments="port menu entry delete the link">_Delete</attribute>
+        <attribute name="action">app.port.delete</attribute>
+      </item>
+    </section>
+  </menu>
+  <menu id="graph_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes" comments="graph menu entry clear graph">_Clear graph</attribute>
+        <attribute name="action">app.graph.clear</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes" comments="graph menu entry check graph">_Check graph</attribute>
+        <attribute name="action">app.graph.check</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes" comments="graph menu entry pipeline details">_Pipeline details</attribute>
+        <attribute name="action">app.graph.pipeline_details</attribute>
+      </item>
+    </section>
+  </menu>
+  <menu id="fav_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes" comments="favorite menu entry delete the favorite">_Remove favorite</attribute>
+        <attribute name="action">app.favorite.remove</attribute>
+      </item>
+    </section>
+  </menu>
+    <menu id="logger_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes" comments="logger menu entry clear the logs">_Clear</attribute>
+        <attribute name="action">app.logger.clear</attribute>
+      </item>
+    </section>
+  </menu>
+  <menu id="node_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes" comments="Node menu entry delete the element">_Delete node</attribute>
+        <attribute name="action">app.delete</attribute>
+      </item>
+      <submenu>
+        <attribute name="label" translatable="yes" comments="Node menu entry request pad">_Request pad</attribute>
+        <item>
+          <attribute name="label" translatable="yes" comments="Node menu entry request pad">_Request input pad</attribute>
+          <attribute name="action">app.node.request-pad-input</attribute>
+          <attribute name="accel">&lt;primary&gt;n</attribute>
+        </item>
+        <item>
+          <attribute name="label" translatable="yes" comments="Node menu entry request pad">_Request output pad</attribute>
+          <attribute name="action">app.node.request-pad-output</attribute>
+          <attribute name="accel">&lt;primary&gt;n</attribute>
+        </item>
+      </submenu>
+      <item>
+        <attribute name="label" translatable="yes" comments="Node menu entry properties">_Properties</attribute>
+        <attribute name="action">app.node.properties</attribute>
+        <attribute name="accel">&lt;primary&gt;n</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes" comments="Node menu entry add to favorite">_Add to favorite</attribute>
+        <attribute name="action">app.node.add-to-favorite</attribute>
+        <attribute name="accel">&lt;primary&gt;A</attribute>
+      </item>
+    </section>
+  </menu>
+  <object class="GtkPopoverMenu" id="app_pop_menu">
+  </object>
+  <object class="GtkAdjustment" id="scale_adjustment">
+    <property name="upper">100</property>
+    <property name="step-increment">1</property>
+    <property name="page-increment">10</property>
+  </object>
+  <object class="GtkApplicationWindow" id="mainwindow">
+    <property name="title" translatable="yes">GstPipelineStudio</property>
+    <property name="default-width">800</property>
+    <property name="default-height">600</property>
+    <child type="titlebar">
+      <object class="GtkHeaderBar" id="header-bar">
+        <child type="end">
+          <object class="GtkMenuButton" id="gear_menu_button">
+            <property name="valign">3</property>
+            <property name="focus-on-click">0</property>
+            <property name="popover">
+              <object class="GtkPopoverMenu" id="gear_menu">
+                <property name="menu-model">primary_menu</property>
+              </object>
+            </property>
+            <property name="icon-name">open-menu-symbolic</property>
+          </object>
+        </child>
+      </object>
+    </child>
+    <child>
+      <object class="GtkBox">
+        <property name="orientation">vertical</property>
+        <property name="spacing">1</property>
+        <child>
+          <object class="GtkPaned" id="playcontrols_position-paned">
+            <property name="vexpand">0</property>
+            <child>
+              <object class="GtkBox">
+                <child>
+                  <object class="GtkButton" id="button-play">
+                    <property name="hexpand">1</property>
+                    <property name="receives-default">1</property>
+                    <property name="icon-name">media-playback-start-symbolic</property>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkButton" id="button-pause">
+                    <property name="hexpand">1</property>
+                    <property name="receives-default">1</property>
+                    <property name="icon-name">media-playback-pause-symbolic</property>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkButton" id="button-stop">
+                    <property name="hexpand">1</property>
+                    <property name="receives-default">1</property>
+                    <property name="icon-name">media-playback-stop-symbolic</property>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkButton" id="button-clear">
+                    <property name="hexpand">1</property>
+                    <property name="receives-default">1</property>
+                    <property name="icon-name">edit-clear</property>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkLabel" id="label-position">
+                    <property name="label" translatable="yes">xx:xx:xx</property>
+                    <property name="hexpand">1</property>
+                  </object>
+                </child>
+              </object>
+            </child>
+            <child>
+              <object class="GtkScale" id="scale-position">
+                <property name="visible">True</property>
+                <property name="can-focus">True</property>
+                <property name="adjustment">scale_adjustment</property>
+                <property name="round-digits">1</property>
+              </object>
+            </child>
+          </object>
+        </child>
+
+        <!--Graph and DashBoard paned-->
+        <child>
+          <object class="GtkPaned" id="graph_dashboard-paned">
+            <property name="position">600</property>
+            <property name="position-set">True</property>
+            <property name="hexpand">True</property>
+            <property name="vexpand">True</property>
+            <child>
+              <!--Graph and Logs paned-->
+              <object class="GtkPaned" id="graph_logs-paned">
+                <property name="orientation">vertical</property>
+                <property name="position">400</property>
+                <child>
+                      <object class="GtkNotebook" id="graphbook">
+                        <child>
+                          <placeholder/>
+                        </child>
+                      </object>
+                </child>
+                <child>
+                <object class="GtkNotebook" id="notebook-debug">
+                  <child>
+                    <object class="GtkNotebookPage">
+                      <property name="child">
+                        <object class="GtkScrolledWindow">
+                          <property name="child">
+                            <object class="GtkTreeView" id="treeview-app-logger"/>
+                          </property>
+                        </object>
+                      </property>
+                      <property name="tab">
+                          <object class="GtkLabel" id="label-app-logger">
+                            <property name="label" translatable="1">App</property>
+                          </object>
+                      </property>
+                    </object>
+                  </child>
+                  <child>
+                    <object class="GtkNotebookPage">
+                      <property name="child">
+                        <object class="GtkScrolledWindow">
+                          <property name="child">
+                            <object class="GtkTreeView" id="treeview-gst-logger"/>
+                          </property>
+                        </object>
+                      </property>
+                      <property name="tab">
+                          <object class="GtkLabel" id="label-gst-logger">
+                            <property name="label" translatable="1">GST</property>
+                          </object>
+                      </property>
+                    </object>
+                  </child>
+                  <child>
+                    <object class="GtkNotebookPage">
+                      <property name="child">
+                        <object class="GtkScrolledWindow">
+                          <property name="child">
+                            <object class="GtkTreeView" id="treeview-msg-logger"/>
+                          </property>
+                        </object>
+                      </property>
+                      <property name="tab">
+                          <object class="GtkLabel" id="label-messages-logger">
+                            <property name="label" translatable="1">Messages</property>
+                          </object>
+                      </property>
+                    </object>
+                  </child>
+                 </object>
+                </child>
+              </object>
+            </child>
+            <!--Elements and Preview paned-->
+            <child>
+              <object class="GtkPaned" id="elements_preview-paned">
+                <property name="orientation">vertical</property>
+                <property name="position">400</property>
+                <child>
+                  <!--Elements and property paned-->
+                  <object class="GtkPaned" id="elements_properties-paned">
+                  <property name="orientation">vertical</property>
+                  <property name="position">400</property>
+                  <child>
+                  <object class="GtkNotebook" id="notebook-elements">
+                    <child>
+                    <object class="GtkNotebookPage">
+                      <property name="child">
+                        <object class="GtkScrolledWindow">
+                          <property name="hexpand">True</property>
+                          <property name="vexpand">True</property>
+                          <property name="child">
+                            <object class="GtkTreeView" id="treeview-elements">
+                            </object>
+                          </property>
+                        </object>
+                      </property>
+                      <property name="tab">
+                        <object class="GtkLabel" id="label-page-elements">
+                          <property name="label" translatable="1">Elements</property>
+                        </object>
+                      </property>
+                    </object>
+                    </child>
+                    <child>
+                    <object class="GtkNotebookPage">
+                      <property name="child">
+                        <object class="GtkScrolledWindow">
+                          <property name="hexpand">True</property>
+                          <property name="vexpand">True</property>
+                          <property name="child">
+                            <object class="GtkTreeView" id="treeview-favorites">
+                            </object>
+                          </property>
+                        </object>
+                      </property>
+                      <property name="tab">
+                        <object class="GtkLabel" id="label-page-favorites">
+                          <property name="label" translatable="1">Favorites</property>
+                        </object>
+                      </property>
+                    </object>
+                    </child>
+                    </object>
+                  </child>
+                  <child>
+                    <object class="GtkScrolledWindow">
+                      <property name="hexpand">True</property>
+                      <property name="vexpand">True</property>
+                      <property name="child">
+                        <object class="GtkBox" id="box-property">
+                        </object>
+                      </property>
+                    </object>
+                  </child>
+                  </object>
+                </child>
+                <child>
+                 <object class="GtkNotebook" id="notebook-preview">
+                 <child>
+                 <object class="GtkNotebookPage">
+                  <property name="child">
+                  <object class="GtkScrolledWindow">
+                    <property name="hexpand">True</property>
+                    <property name="vexpand">True</property>
+                    <property name="child">
+                      <object class="GtkBox" id="box-preview">
+                        <child>
+                          <object class="GtkLabel" id="label-preview">
+                            <property name="label" translatable="yes">No preview</property>
+                            <property name="hexpand">1</property>
+                          </object>
+                        </child>
+                      </object>
+                    </property>
+                  </object>
+                  </property>
+                  </object>
+                  </child>
+                  </object>
+                </child>
+              </object>
+              </child>
+          </object>
+        </child>
+        <child>
+          <object class="GtkStatusbar" id="status_bar">
+          </object>
+        </child>
+        </object>
+        </child>
+  </object>
+</interface>