app: update to gtk 0.8.0 and gst 0.22.2

In the change, the glib::channel has been dropped to use
async_io which achieves the same to receive message
for the logger and display it in the treeview.
Another message is received when a new gtkpaintablesink
has been instanciated.

.gitignore

@@ -1,3 +1,4 @@
 /target
 *.log
 src/config.rs
+subprojects/*/

.gitlab-ci.yml

@@ -2,23 +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
   - release
+  - deploy
 
 variables:
   FDO_UPSTREAM_REPO: "dabrain34/GstPipelineStudio"
-  GNOME_RUNTIME_IMAGE: "registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:3.38"
+  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: "2022-01-27.2"
+    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:
@@ -28,10 +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
@@ -44,21 +54,123 @@ build-fedora-container:
       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-clippy:
+.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:
     - .fedora
@@ -94,26 +206,17 @@ dist-package:
   stage: release
   only:
     - flatpak
-    - tags
   script:
     - meson build
     - ninja -C build dist
 
 flatpak:
-  image: "registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:41"
-  stage: release
-  only:
-    - flatpak
-    - tags
-  # Using gstreamer runner avoids an issue with 'bwrap: No permissions to creating new namespace' during flatpak builder
-  tags:
-    - gstreamer
+  image: $GNOME_RUNTIME_IMAGE
+  stage: test
   variables:
-    BUNDLE: "gst-pipeline-studio-nightly.flatpak"
     MANIFEST_PATH: "build-aux/org.freedesktop.dabrain34.GstPipelineStudio.Devel.json"
-    FLATPAK_MODULE: "gst-pipeline-studio"
     APP_ID: "org.freedesktop.dabrain34.GstPipelineStudio.Devel"
-    RUNTIME_REPO: "https://nightly.gnome.org/gnome-nightly.flatpakrepo"
+    BUNDLE: "gst-pipeline-studio-nightly.flatpak"
   script:
     - flatpak-builder app ${MANIFEST_PATH}
     - flatpak build-export repo app
@@ -124,6 +227,70 @@ flatpak:
     when: "always"
     paths:
       - "${BUNDLE}"
-      - ".flatpak-builder/build/${FLATPAK_MODULE}/_flatpak_build/meson-logs/meson-log.txt"
-      - ".flatpak-builder/build/${FLATPAK_MODULE}/_flatpak_build/meson-logs/testlog.txt"
     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

@@ -1,28 +1,35 @@
 [package]
-name = "gst_pipeline_studio"
-version = "0.2.2"
+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 = "0.4.1", package = "gtk4" }
-gst = { package = "gstreamer", version = "0.18.1" }
-gst-plugin-gtk4 = { version = "0.1.1", optional=true }
+gtk = { version = "0.8.0", 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"]}
 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"
 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"]
+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 +1,11 @@
-# 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
 
@@ -19,7 +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
 ```
@@ -32,12 +39,19 @@ 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 -Dbuildtype=release
 $ ninja -C builddir
-$ ./builddir/target/release/gst_pipeline_studio
+$ ./builddir/target/release/gst-pipeline-studio
 ```
 
 ## Flatpak
@@ -64,3 +78,7 @@ This project has been also possible thanks to amazing projects such as:
 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

@@ -1,95 +1,10 @@
-## 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
-
 ## TODO
 
 ### Graphview
 
 - [ ] create a crate for graphview/node/port
 
+
 ### GStreamer:
 
 - [ ] Implement pipeline unit test
@@ -97,26 +12,23 @@
 ### app
 
 - [ ] Control the connection between element
-  - [ ] unable to connect element with incompatible caps.
-- [ ] Add multiple graphviews with tabs.
+- [ ] unable to connect element with incompatible caps.
 - [ ] Implement graph dot render/load
-- [ ] Implement a command line parser to graph
-- [ ] handle the caps setter element
 - [ ] 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
 - [ ] Change TreeView to ListView
 - [ ] Implement zoom on the view (https://gitlab.gnome.org/World/obfuscate/-/blob/master/src/widgets/drawing_area.rs)
-- [ ] Settings: add a log level selection
 - [ ] 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
 
-### CI/Infra
 
-- [ ] Create a macos/windows job
 
 ## 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

@@ -1,28 +1,56 @@
 {
   "app-id": "org.freedesktop.dabrain34.GstPipelineStudio.Devel",
   "runtime": "org.gnome.Platform",
-  "runtime-version": "41",
+  "runtime-version": "master",
   "sdk": "org.gnome.Sdk",
-  "sdk-extensions": ["org.freedesktop.Sdk.Extension.rust-stable"],
-  "command": "gst_pipeline_studio",
+  "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"]
+    "build-args": [
+      "--share=network"
+    ],
+    "test-args": [
+      "--socket=x11",
+      "--share=network"
+    ]
   },
   "modules": [
     {
-      "name": "gst_pipeline_studio",
+      "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"],
+      "config-opts": [
+        "-Dprofile=development"
+      ],
       "sources": [
         {
           "type": "dir",
@@ -31,4 +59,4 @@
       ]
     }
   ]
-}
+}

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: " ➜";
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+.highlight .vm {
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+  color: #000000;
+  font-weight: bold;
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+  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/meson.build

@@ -27,6 +27,8 @@ install_data(
 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),

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Copyright 2019 Guillaume Desmottes 2019 <guillaume@desmottes.be -->
+<!-- Copyright 2022 Stephane Cerveau 2022 <scerveau@collabora.com -->
 <component type="desktop-application">
   <id>@app-id@</id>
   <metadata_license>CC0</metadata_license>
@@ -15,7 +15,7 @@
       <caption>Composition</caption>
     </screenshot>
   </screenshots>
-  <url type="homepage">https://gitlab.freedesktop.org/dabrain34/GstPipelineStudio</url>
+  <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>
@@ -27,7 +27,17 @@
   <translation type="gettext">@gettext-package@</translation>
   <launchable type="desktop-id">@app-id@.desktop</launchable>
     <releases>
-    <release version="0.1.0" date="2022-01-11"/>
+    <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>

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

@@ -3,7 +3,7 @@ Name=GstPipelineStudio
 GenericName=GPS
 Comment=A GUI for GStreamer
 Type=Application
-Exec=gst_pipeline_studio
+Exec=gst-pipeline-studio
 Terminal=false
 Categories=AudioVideo;Audio;Video;Midi;Settings;GNOME;GTK;
 Icon=@icon@

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: '0.2.2',
-    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',
 )
-
+if host_system == 'linux'
 subdir('data')
+endif
 subdir('src')
 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

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

po/fr.po

@@ -39,23 +39,6 @@ msgstr "GstPipelineStudio a pour but de fournir une interface utilisateur au log
 msgid "A GUI for GStreamer"
 msgstr "Une interface utilisateur pour GStreamer"
 
-#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:15
-msgid "Player rendering video"
-msgstr "Rendu video dans le lecteur"
-
-#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:26
-msgid "Searching song using the mobile client"
-msgstr ""
-
-#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:35
-msgid "Guillaume Desmottes"
-msgstr ""
-
-#. Translators: Do NOT translate or transliterate this text (this is an icon file name)!
-#: data/org.freedesktop.dabrain34.GstPipelineStudio.desktop.in:9
-msgid "@icon@"
-msgstr ""
-
 #: src/app.rs:344
 msgid "GPS is ready"
 msgstr "GPS est prêt"

po/gps.pot

@@ -39,23 +39,6 @@ une interface intuitive pour ajouter des elements à un pipeline pour l'examiner
 msgid "A GUI for GStreamer"
 msgstr "Une interface utilisateur pour GStreamer"
 
-#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:15
-msgid "Player rendering video"
-msgstr "Rendu video dans le lecteur"
-
-#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:26
-msgid "Searching song using the mobile client"
-msgstr ""
-
-#: data/org.freedesktop.dabrain34.GstPipelineStudio.appdata.xml.in.in:35
-msgid "Guillaume Desmottes"
-msgstr ""
-
-#. Translators: Do NOT translate or transliterate this text (this is an icon file name)!
-#: data/org.freedesktop.dabrain34.GstPipelineStudio.desktop.in:9
-msgid "@icon@"
-msgstr ""
-
 #: 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"

release.md

@@ -3,7 +3,22 @@
 - 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
-- meson builddir -Dbuildtype=release
-- ninja -C buiddir dist
-- upload the package and the sha256 to gitlab for Flatpak in the release notes
+- 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/app.rs

@@ -2,33 +2,21 @@
 //
 // 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 glib::SignalHandlerId;
-use glib::Value;
 use gtk::gdk;
 use gtk::prelude::*;
 use gtk::{gio, gio::SimpleAction, glib, graphene};
 use gtk::{
     Application, ApplicationWindow, Builder, Button, FileChooserAction, FileChooserDialog, Paned,
-    PopoverMenu, ResponseType, Statusbar, Viewport, Widget,
+    PopoverMenu, ResponseType, Statusbar, Widget,
 };
 use log::error;
 use once_cell::unsync::OnceCell;
-use std::cell::RefCell;
+use std::cell::{Cell, RefCell};
 use std::collections::HashMap;
 use std::fs::File;
 use std::io::{Read, Write};
@@ -36,11 +24,12 @@ use std::ops;
 use std::rc::{Rc, Weak};
 
 use crate::gps as GPS;
+use crate::graphbook;
 use crate::logger;
 use crate::settings::Settings;
 use crate::ui as GPSUI;
 
-use crate::{GPS_DEBUG, GPS_ERROR, GPS_INFO, GPS_TRACE, GPS_WARN};
+use crate::{GPS_DEBUG, GPS_ERROR, GPS_TRACE, GPS_WARN};
 
 use crate::graphmanager as GM;
 use crate::graphmanager::PropertyExt;
@@ -48,9 +37,9 @@ use std::fmt;
 #[derive(Debug)]
 pub struct GPSAppInner {
     pub window: gtk::ApplicationWindow,
-    pub graphview: RefCell<GM::GraphView>,
+    pub current_graphtab: Cell<u32>,
+    pub graphbook: RefCell<HashMap<u32, graphbook::GraphTab>>,
     pub builder: Builder,
-    pub player: RefCell<GPS::Player>,
     pub plugin_list_initialized: OnceCell<bool>,
     pub signal_handlers: RefCell<HashMap<String, SignalHandlerId>>,
 }
@@ -66,7 +55,7 @@ pub enum AppState {
 
 impl fmt::Display for AppState {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{:?}", self)
+        write!(f, "{self:?}",)
     }
 }
 
@@ -79,7 +68,7 @@ impl ops::Deref for GPSApp {
     type Target = GPSAppInner;
 
     fn deref(&self) -> &GPSAppInner {
-        &*self.0
+        &self.0
     }
 }
 
@@ -106,27 +95,24 @@ impl GPSApp {
         window.set_application(Some(application));
         window.set_title(Some("GStreamer Pipeline Studio"));
 
-        let player = GPS::Player::new().expect("Unable to initialize GStreamer subsystem");
         let app = GPSApp(Rc::new(GPSAppInner {
             window,
-            graphview: RefCell::new(GM::GraphView::new()),
+            current_graphtab: Cell::new(0),
+            graphbook: RefCell::new(HashMap::new()),
             builder,
-            player: RefCell::new(player),
             plugin_list_initialized: OnceCell::new(),
             signal_handlers: RefCell::new(HashMap::new()),
         }));
-        let app_weak = app.downgrade();
-        app.player.borrow().set_app(app_weak);
-        app.graphview.borrow_mut().set_id(0);
-
         let settings = Settings::load_settings();
 
+        app.window
+            .set_default_size(settings.app_width, settings.app_height);
+
+        #[cfg(not(target_os = "macos"))]
         if settings.app_maximized {
             app.window.maximize();
-        } else {
-            app.window
-                .set_size_request(settings.app_width, settings.app_height);
         }
+
         app.set_paned_position(&settings, "graph_dashboard-paned", 100);
         app.set_paned_position(&settings, "graph_logs-paned", 100);
         app.set_paned_position(&settings, "elements_preview-paned", 100);
@@ -164,7 +150,7 @@ impl GPSApp {
             .insert(paned_name.to_string(), paned.position());
     }
 
-    pub fn on_startup(application: &gtk::Application) {
+    pub fn on_startup(application: &gtk::Application, pipeline_desc: &String) {
         // Create application and error out if that fails for whatever reason
         let app = match GPSApp::new(application) {
             Ok(app) => app,
@@ -174,13 +160,7 @@ impl GPSApp {
             }
         };
 
-        // When the application is activated show the UI. This happens when the first process is
-        // started, and in the first process whenever a second process is started
-        let app_weak = app.downgrade();
-        application.connect_activate(glib::clone!(@weak application => move |_| {
-            let app = upgrade_weak!(app_weak);
-            app.build_ui(&application);
-        }));
+        app.build_ui(application, pipeline_desc);
 
         let app_weak = app.downgrade();
         let slider: gtk::Scale = app
@@ -189,18 +169,20 @@ impl GPSApp {
             .expect("Couldn't get status_bar");
         let slider_update_signal_id = slider.connect_value_changed(move |slider| {
             let app = upgrade_weak!(app_weak);
-            let player = app.player.borrow();
             let value = slider.value() as u64;
             GPS_TRACE!("Seeking to {} s", value);
-            if player.set_position(value).is_err() {
+            if graphbook::current_graphtab(&app)
+                .player()
+                .set_position(value)
+                .is_err()
+            {
                 GPS_ERROR!("Seeking to {} failed", value);
             }
         });
         let app_weak = app.downgrade();
         let timeout_id =
             glib::timeout_add_local(std::time::Duration::from_millis(500), move || {
-                let app = upgrade_weak!(app_weak, glib::Continue(false));
-                let player = app.player.borrow();
+                let app = upgrade_weak!(app_weak, glib::ControlFlow::Break);
 
                 let label: gtk::Label = app
                     .builder
@@ -210,19 +192,21 @@ impl GPSApp {
                     .builder
                     .object("scale-position")
                     .expect("Couldn't get status_bar");
-                let position = player.position();
-                let duration = player.duration();
+                let position = graphbook::current_graphtab(&app).player().position();
+                let duration = graphbook::current_graphtab(&app).player().duration();
                 slider.set_range(0.0, duration as f64 / 1000_f64);
                 slider.block_signal(&slider_update_signal_id);
                 slider.set_value(position as f64 / 1000_f64);
                 slider.unblock_signal(&slider_update_signal_id);
 
                 // Query the current playing position from the underlying player.
-                let position_desc = player.position_description();
+                let position_desc = graphbook::current_graphtab(&app)
+                    .player()
+                    .position_description();
                 // Display the playing position in the gui.
                 label.set_text(&position_desc);
                 // Tell the callback to continue calling this closure.
-                glib::Continue(true)
+                glib::ControlFlow::Continue
             });
 
         let timeout_id = RefCell::new(Some(timeout_id));
@@ -239,8 +223,8 @@ impl GPSApp {
                 .expect("Couldn't get the main window");
             let mut settings = Settings::load_settings();
             settings.app_maximized = window.is_maximized();
-            settings.app_width = window.width();
-            settings.app_height = window.height();
+            settings.app_width = window.default_width();
+            settings.app_height = window.default_height();
             app.save_paned_position(&mut settings, "graph_dashboard-paned");
             app.save_paned_position(&mut settings, "graph_logs-paned");
             app.save_paned_position(&mut settings, "elements_preview-paned");
@@ -269,8 +253,13 @@ impl GPSApp {
         application.add_action(&gio::SimpleAction::new("open", None));
         application.set_accels_for_action("app.open", &["<primary>o"]);
 
+        application.add_action(&gio::SimpleAction::new("open_pipeline", None));
+        application.set_accels_for_action("app.open_pipeline", &["<primary>p"]);
+
         application.add_action(&gio::SimpleAction::new("save_as", None));
+        application.add_action(&gio::SimpleAction::new("save", None));
         application.set_accels_for_action("app.save", &["<primary>s"]);
+        application.add_action(&gio::SimpleAction::new("save_as", None));
 
         application.add_action(&gio::SimpleAction::new("delete", None));
         application.set_accels_for_action("app.delete", &["<primary>d", "Delete"]);
@@ -283,7 +272,10 @@ impl GPSApp {
 
         application.add_action(&gio::SimpleAction::new("favorite.remove", None));
 
+        application.add_action(&gio::SimpleAction::new("logger.clear", None));
+
         application.add_action(&gio::SimpleAction::new("graph.check", None));
+        application.add_action(&gio::SimpleAction::new("graph.clear", None));
         application.add_action(&gio::SimpleAction::new("graph.pipeline_details", None));
 
         application.add_action(&gio::SimpleAction::new("port.delete", None));
@@ -337,7 +329,7 @@ impl GPSApp {
             .expect("Unable to dynamic cast to SimpleAction")
     }
 
-    fn disconnect_app_menu_action(&self, action_name: &str) {
+    pub fn disconnect_app_menu_action(&self, action_name: &str) {
         let action = self.app_menu_action(action_name);
 
         if let Some(signal_handler_id) = self.signal_handlers.borrow_mut().remove(action_name) {
@@ -426,7 +418,12 @@ impl GPSApp {
             .builder
             .object("notebook-preview")
             .expect("Couldn't get box_preview");
-        if n_sink == 0 {
+        let mut n_video_sink = n_sink;
+        for tab in self.graphbook.borrow().values() {
+            n_video_sink += tab.player().n_video_sink();
+        }
+
+        if n_video_sink == 0 {
             loop {
                 let i = notebook_preview.n_pages();
                 if i == 0 {
@@ -441,32 +438,35 @@ impl GPSApp {
             .valign(gtk::Align::Center)
             .build();
         box_preview.append(&picture);
-        let label = gtk::Label::new(Some(&format!("Preview{}", n_sink)));
+        let label = gtk::Label::new(Some(&format!("Preview{n_video_sink}")));
         notebook_preview.insert_page(&box_preview, Some(&label), None);
+        notebook_preview.set_current_page(Some(n_video_sink as u32));
     }
 
-    pub fn build_ui(&self, application: &Application) {
-        let drawing_area_window: Viewport = self
-            .builder
-            .object("drawing_area")
-            .expect("Couldn't get drawing_area");
-
-        drawing_area_window.set_child(Some(&*self.graphview.borrow()));
+    pub fn build_ui(&self, application: &Application, pipeline_desc: &String) {
+        graphbook::setup_graphbook(self);
+        graphbook::create_graphtab(self, 0, None);
+        let (ready_tx, ready_rx) = async_channel::unbounded::<(logger::LogType, String)>();
 
         // Setup the logger to get messages into the TreeView
-        let (ready_tx, ready_rx) = glib::MainContext::channel(glib::PRIORITY_DEFAULT);
-        let app_weak = self.downgrade();
+
         logger::init_logger(
-            ready_tx,
-            Settings::default_log_file_path()
+            ready_tx.clone(),
+            Settings::log_file_path()
                 .to_str()
                 .expect("Unable to convert log file path to a string"),
         );
-        GPSUI::logger::setup_logger_list(self);
-        let _ = ready_rx.attach(None, move |msg: String| {
-            let app = upgrade_weak!(app_weak, glib::Continue(false));
-            GPSUI::logger::add_to_logger_list(&app, &msg);
-            glib::Continue(true)
+        logger::init_msg_logger(ready_tx);
+        GPSUI::logger::setup_logger_list(self, "treeview-app-logger", logger::LogType::App);
+        GPSUI::logger::setup_logger_list(self, "treeview-msg-logger", logger::LogType::Message);
+        GPSUI::logger::setup_logger_list(self, "treeview-gst-logger", logger::LogType::Gst);
+        let app_weak = self.downgrade();
+        glib::spawn_future_local(async move {
+            while let Ok(msg) = ready_rx.recv().await {
+                let app = upgrade_weak!(app_weak, glib::ControlFlow::Break);
+                GPSUI::logger::add_to_logger_list(&app, msg.0, &msg.1);
+            }
+            glib::ControlFlow::Continue
         });
 
         let window = &self.window;
@@ -484,19 +484,59 @@ impl GPSApp {
         let app_weak = self.downgrade();
         self.connect_app_menu_action("new-window", move |_, _| {
             let app = upgrade_weak!(app_weak);
-            app.clear_graph();
-            GPS_ERROR!("clear graph");
+            let id = graphbook::graphbook_get_new_graphtab_id(&app);
+            graphbook::create_graphtab(&app, id, None);
+            let graphbook: gtk::Notebook = app
+                .builder
+                .object("graphbook")
+                .expect("Couldn't get graphbook");
+            graphbook.set_current_page(Some(id));
         });
 
         let app_weak = self.downgrade();
         self.connect_app_menu_action("open", move |_, _| {
             let app = upgrade_weak!(app_weak);
             GPSApp::get_file_from_dialog(&app, false, move |app, filename| {
-                app.load_graph(&filename)
+                app.load_graph(&filename, false)
                     .unwrap_or_else(|_| GPS_ERROR!("Unable to open file {}", filename));
             });
         });
 
+        let app_weak = self.downgrade();
+        self.connect_app_menu_action("open_pipeline", move |_, _| {
+            let app = upgrade_weak!(app_weak);
+            GPSUI::dialog::create_input_dialog(
+                "Enter pipeline description with gst-launch format",
+                "description",
+                &Settings::recent_pipeline_description(),
+                &app,
+                move |app, pipeline_desc| {
+                    app.load_pipeline(&pipeline_desc).unwrap_or_else(|_| {
+                        GPS_ERROR!("Unable to open pipeline description {}", pipeline_desc)
+                    });
+                    Settings::set_recent_pipeline_description(&pipeline_desc);
+                },
+            );
+        });
+        let app_weak = self.downgrade();
+        self.connect_app_menu_action("save", move |_, _| {
+            let app = upgrade_weak!(app_weak);
+            let gt = graphbook::current_graphtab(&app);
+            if gt.undefined() {
+                GPSApp::get_file_from_dialog(&app, true, move |app, filename| {
+                    GPS_DEBUG!("Save file {}", filename);
+                    app.save_graph(&filename)
+                        .unwrap_or_else(|_| GPS_ERROR!("Unable to save file to {}", filename));
+                    graphbook::current_graphtab_set_filename(&app, filename.as_str());
+                });
+            } else if gt.modified() {
+                let filename = gt.filename();
+                app.save_graph(&filename)
+                    .unwrap_or_else(|_| GPS_ERROR!("Unable to save file to {}", filename));
+                graphbook::current_graphtab_set_filename(&app, filename.as_str());
+            }
+        });
+
         let app_weak = self.downgrade();
         self.connect_app_menu_action("save_as", move |_, _| {
             let app = upgrade_weak!(app_weak);
@@ -504,6 +544,7 @@ impl GPSApp {
                 GPS_DEBUG!("Save file {}", filename);
                 app.save_graph(&filename)
                     .unwrap_or_else(|_| GPS_ERROR!("Unable to save file to {}", filename));
+                graphbook::current_graphtab_set_filename(&app, filename.as_str());
             });
         });
 
@@ -516,8 +557,9 @@ impl GPSApp {
         let app_weak = self.downgrade();
         self.connect_app_menu_action("delete", move |_, _| {
             let app = upgrade_weak!(app_weak);
-            let graph_view = app.graphview.borrow();
-            graph_view.delete_selected();
+            graphbook::current_graphtab(&app)
+                .graphview()
+                .delete_selected();
         });
 
         let app_weak = self.downgrade();
@@ -529,28 +571,28 @@ impl GPSApp {
         let app_weak = self.downgrade();
         self.connect_button_action("button-play", move |_| {
             let app = upgrade_weak!(app_weak);
-            let graph_view = app.graphview.borrow();
-            let _ = app
-                .player
-                .borrow()
-                .start_pipeline(&graph_view, GPS::PipelineState::Playing);
+            let _ = graphbook::current_graphtab(&app).player().start_pipeline(
+                &graphbook::current_graphtab(&app).graphview(),
+                GPS::PipelineState::Playing,
+            );
         });
 
         let app_weak = self.downgrade();
         self.connect_button_action("button-pause", move |_| {
             let app = upgrade_weak!(app_weak);
-            let graph_view = app.graphview.borrow();
-            let _ = app
-                .player
-                .borrow()
-                .start_pipeline(&graph_view, GPS::PipelineState::Paused);
+            let _ = graphbook::current_graphtab(&app).player().start_pipeline(
+                &graphbook::current_graphtab(&app).graphview(),
+                GPS::PipelineState::Paused,
+            );
         });
 
         let app_weak = self.downgrade();
         self.connect_button_action("button-stop", move |_| {
             let app = upgrade_weak!(app_weak);
-            let player = app.player.borrow();
-            let _ = player.set_state(GPS::PipelineState::Stopped);
+
+            let _ = graphbook::current_graphtab(&app)
+                .player()
+                .set_state(GPS::PipelineState::Stopped);
         });
 
         let app_weak = self.downgrade();
@@ -558,258 +600,27 @@ impl GPSApp {
             let app = upgrade_weak!(app_weak);
             app.clear_graph();
         });
-        let app_weak = self.downgrade();
-        self.graphview.borrow().connect_local(
-            "node-added",
-            false,
-            glib::clone!(@weak application =>  @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_INFO!("Node added node id={} in graph id={}", node_id, graph_id);
-                if let Some(node) = app.graphview.borrow().node(node_id) {
-                    let description = GPS::ElementInfo::element_description(&node.name()).ok();
-                    node.set_tooltip_markup(description.as_deref());
-                    for port in node.all_ports(GM::PortDirection::All) {
-                        let caps = PropertyExt::property(&port,"_caps");
-                        GPS_TRACE!("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 = self.downgrade();
-        self.graphview.borrow().connect_local(
-            "port-added",
-            false,
-            glib::clone!(@weak application =>  @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_INFO!("Port added port id={} to node id={} in graph id={}", port_id, node_id, graph_id);
-                if let Some(node) = app.graphview.borrow().node(node_id) {
-                    if let Some(port) = node.port(port_id) {
-                        let caps = PropertyExt::property(&port, "_caps");
-                        GPS_TRACE!("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 = self.downgrade();
-        self.graphview.borrow().connect_local(
-            "graph-updated",
-            false,
-            glib::clone!(@weak application =>  @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_TRACE!("Graph updated id={}", id);
-                let _ = app
-                    .save_graph(
-                        Settings::default_graph_file_path()
-                            .to_str()
-                            .expect("Unable to convert to string"),
-                    )
-                    .map_err(|e| GPS_WARN!("Unable to save file {}", e));
-                None
-            }),
-        );
-        // When user clicks on port with right button
-        let app_weak = self.downgrade();
-        self.graphview
-            .borrow()
-            .connect_local(
-                "graph-right-clicked",
-                false,
-                glib::clone!(@weak application =>  @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(&*app.graphview.borrow(), 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.check",
-                        move |_,_| {
-                            let app = upgrade_weak!(app_weak);
-                            let render_parse_launch = app.player.borrow().render_gst_launch(&app.graphview.borrow());
-                            if app.player.borrow().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 = self.downgrade();
-        self.graphview.borrow().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(
-                    &*app.graphview.borrow(),
-                    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 app.graphview.borrow().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_TRACE!("port.delete-link port {} node {}", port_id, node_id);
-                        app.graphview.borrow().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_TRACE!("port.properties port {} node {}", 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 = self.downgrade();
-        self.graphview
-            .borrow()
-            .connect_local(
-                "node-right-clicked",
-                false,
-                glib::clone!(@weak application =>  @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 point = values[2].get::<graphene::Point>().expect("point in args[2]");
-
-                    let pop_menu = app.app_pop_menu_at_position(&*app.graphview.borrow(), 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.add-to-favorite",
-                        move |_,_| {
-                            let app = upgrade_weak!(app_weak);
-                            GPS_DEBUG!("node.add-to-favorite {}", node_id);
-                            if let Some(node) = app.graphview.borrow().node(node_id) {
-                                GPSUI::elements::add_to_favorite_list(&app, node.name());
-                            };
-                        }
-                    );
-
-                    let app_weak = app.downgrade();
-                    app.connect_app_menu_action("node.delete",
-                        move |_,_| {
-                            let app = upgrade_weak!(app_weak);
-                            GPS_DEBUG!("node.delete {}", node_id);
-                            app.graphview.borrow_mut().remove_node(node_id);
-                        }
-                    );
-                    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 {}", 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 {}", 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 {}", node_id);
-                            let node = app.graphview.borrow().node(node_id).unwrap();
-                            GPSUI::properties::display_plugin_properties(&app, &node.name(), node_id);
-                        }
-                    );
-
-                    pop_menu.show();
-                    None
-                }),
-            );
 
         // Setup the favorite list
         GPSUI::elements::setup_favorite_list(self);
         // Setup the favorite list
         GPSUI::elements::setup_elements_list(self);
-
-        let _ = self
-            .load_graph(
-                Settings::default_graph_file_path()
-                    .to_str()
-                    .expect("Unable to convert to string"),
-            )
-            .map_err(|_e| {
-                GPS_WARN!("Unable to load default graph");
+        if pipeline_desc.is_empty() {
+            let _ = self
+                .load_graph(
+                    Settings::graph_file_path()
+                        .to_str()
+                        .expect("Unable to convert to string"),
+                    true,
+                )
+                .map_err(|_e| {
+                    GPS_WARN!("Unable to load default graph");
+                });
+        } else {
+            self.load_pipeline(pipeline_desc).unwrap_or_else(|_| {
+                GPS_ERROR!("Unable to open pipeline description {}", pipeline_desc)
             });
+        }
     }
 
     // Downgrade to a weak reference
@@ -821,23 +632,22 @@ impl GPSApp {
     fn drop(self) {}
 
     pub fn add_new_element(&self, element_name: &str) {
-        let graphview = self.graphview.borrow();
         let (inputs, outputs) = GPS::PadInfo::pads(element_name, false);
-        let node =
-            graphview.create_node(element_name, GPS::ElementInfo::element_type(element_name));
+        let node = graphbook::current_graphtab(self)
+            .graphview()
+            .create_node(element_name, GPS::ElementInfo::element_type(element_name));
         let node_id = node.id();
         if GPS::ElementInfo::element_is_uri_src_handler(element_name) {
             GPSApp::get_file_from_dialog(self, false, move |app, filename| {
                 GPS_DEBUG!("Open file {}", filename);
-                let graphview = app.graphview.borrow();
                 let mut properties: HashMap<String, String> = HashMap::new();
                 properties.insert(String::from("location"), filename);
-                if let Some(node) = graphview.node(node_id) {
+                if let Some(node) = graphbook::current_graphtab(&app).graphview().node(node_id) {
                     node.update_properties(&properties);
                 }
             });
         }
-        graphview.add_node(node);
+        graphbook::current_graphtab(self).graphview().add_node(node);
         for input in inputs {
             self.create_port_with_caps(
                 node_id,
@@ -856,16 +666,15 @@ impl GPSApp {
         }
     }
 
-    fn node(&self, node_id: u32) -> GM::Node {
-        let node = self
-            .graphview
-            .borrow()
+    pub fn node(&self, node_id: u32) -> GM::Node {
+        let node = graphbook::current_graphtab(self)
+            .graphview()
             .node(node_id)
             .unwrap_or_else(|| panic!("Unable to retrieve node with id {}", node_id));
         node
     }
 
-    fn port(&self, node_id: u32, port_id: u32) -> GM::Port {
+    pub fn port(&self, node_id: u32, port_id: u32) -> GM::Port {
         let node = self.node(node_id);
         node.port(port_id)
             .unwrap_or_else(|| panic!("Unable to retrieve port with id {}", port_id))
@@ -902,13 +711,13 @@ impl GPSApp {
         properties
     }
 
-    fn create_port_with_caps(
+    pub fn create_port_with_caps(
         &self,
         node_id: u32,
         direction: GM::PortDirection,
         presence: GM::PortPresence,
         caps: String,
-    ) {
+    ) -> u32 {
         let node = self.node(node_id);
         let ports = node.all_ports(direction);
         let port_name = match direction {
@@ -916,36 +725,66 @@ impl GPSApp {
             GM::PortDirection::Output => String::from("src_"),
             _ => String::from("?"),
         };
-        let graphview = self.graphview.borrow();
         let port_name = format!("{}{}", port_name, ports.len());
-        let port = graphview.create_port(&port_name, direction, presence);
+        let port = graphbook::current_graphtab(self)
+            .graphview()
+            .create_port(&port_name, direction, presence);
+        let id = port.id();
         let properties: HashMap<String, String> = HashMap::from([("_caps".to_string(), caps)]);
         port.update_properties(&properties);
-        if let Some(mut node) = graphview.node(node_id) {
-            graphview.add_port_to_node(&mut node, port);
+        if let Some(mut node) = graphbook::current_graphtab(self).graphview().node(node_id) {
+            graphbook::current_graphtab(self)
+                .graphview()
+                .add_port_to_node(&mut node, port);
         }
+        id
+    }
+
+    pub fn create_link(
+        &self,
+        node_from_id: u32,
+        node_to_id: u32,
+        port_from_id: u32,
+        port_to_id: u32,
+    ) {
+        let graphtab = graphbook::current_graphtab(self);
+        let link =
+            graphtab
+                .graphview()
+                .create_link(node_from_id, node_to_id, port_from_id, port_to_id);
+        graphtab.graphview().add_link(link);
     }
 
     fn clear_graph(&self) {
-        let graph_view = self.graphview.borrow();
-        graph_view.clear();
+        graphbook::current_graphtab(self).graphview().clear();
     }
 
-    fn save_graph(&self, filename: &str) -> anyhow::Result<()> {
-        let graph_view = self.graphview.borrow();
+    pub fn save_graph(&self, filename: &str) -> anyhow::Result<()> {
         let mut file = File::create(filename)?;
-        let buffer = graph_view.render_xml()?;
+        let buffer = graphbook::current_graphtab(self).graphview().render_xml()?;
         file.write_all(&buffer)?;
 
         Ok(())
     }
 
-    fn load_graph(&self, filename: &str) -> anyhow::Result<()> {
-        let graph_view = self.graphview.borrow();
+    fn load_graph(&self, filename: &str, untitled: bool) -> anyhow::Result<()> {
         let mut file = File::open(filename)?;
         let mut buffer = Vec::new();
         file.read_to_end(&mut buffer).expect("buffer overflow");
-        graph_view.load_from_xml(buffer)?;
+        let graphtab = graphbook::current_graphtab(self);
+        graphtab.graphview().load_from_xml(buffer)?;
+        if !untitled {
+            graphbook::current_graphtab_set_filename(self, filename);
+        }
+        Ok(())
+    }
+
+    fn load_pipeline(&self, pipeline_desc: &str) -> anyhow::Result<()> {
+        let graphtab = graphbook::current_graphtab(self);
+        let pd_parsed = pipeline_desc.replace('\\', "");
+        graphtab
+            .player()
+            .graphview_from_pipeline_description(&graphtab.graphview(), &pd_parsed);
         Ok(())
     }
 }

src/common.rs

@@ -2,28 +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 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/element.rs

@@ -2,18 +2,7 @@
 //
 // Copyright 2022 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
 
@@ -25,6 +14,7 @@ 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 {
@@ -56,6 +46,19 @@ impl ElementInfo {
         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())
@@ -70,61 +73,67 @@ impl ElementInfo {
 
     pub fn element_description(element_name: &str) -> anyhow::Result<String> {
         let mut desc = String::from("");
-        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>() {
+        if !ElementInfo::element_factory_exists(element_name) {
             desc.push_str("<b>Factory details:</b>\n");
-            desc.push_str("<b>Rank:</b>");
-            desc.push_str(&format!("{:?}", rank));
-            desc.push('\n');
             desc.push_str("<b>Name:</b>");
-            desc.push_str(&factory.name());
+            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).to_string());
-                    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()).to_string());
-                desc.push('\n');
-                desc.push_str("<b>Filename:");
-                desc.push_str("</b>");
-                desc.push_str(
-                    &gtk::glib::markup_escape_text(
+                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(),
-                    )
-                    .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');
+                    ));
+                    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)
@@ -145,44 +154,87 @@ impl ElementInfo {
 
         element_type
     }
-    pub fn element_property(element_name: &str, property_name: &str) -> anyhow::Result<String> {
-        let feature = ElementInfo::element_feature(element_name).expect("Unable to get feature");
 
+    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(None)?;
-        let value = element
-            .try_property::<String>(property_name)
-            .unwrap_or_default();
-        Ok(value)
+        let element = factory.create().build()?;
+        ElementInfo::element_property(&element, property_name)
     }
 
     pub fn element_properties(
-        element_name: &str,
+        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(None)?;
-        let params = element.class().list_properties();
-
-        for param in params.iter() {
-            let value = element
-                .try_property::<String>(param.name())
-                .unwrap_or_default();
-            GPS_INFO!(
-                "Property_name {}={} type={:?}",
-                param.name(),
-                value,
-                param.type_()
-            );
-            properties_list.insert(String::from(param.name()), param.clone());
-        }
-        Ok(properties_list)
+        let element = factory.create().build()?;
+        ElementInfo::element_properties(&element)
     }
 
     pub fn element_is_uri_src_handler(element_name: &str) -> bool {
@@ -192,7 +244,8 @@ impl ElementInfo {
             .downcast::<gst::ElementFactory>()
             .expect("Unable to get the factory from the feature");
         let element = factory
-            .create(None)
+            .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,
@@ -223,15 +276,15 @@ impl ElementInfo {
         None
     }
 
-    pub fn search_fo_element(bin: &gst::Bin, element_name: &str) -> Vec<gst::Element> {
+    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();
-        let elements = loop {
+        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_fo_element(&bin, element_name);
+                        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());

src/gps/pad.rs

@@ -2,18 +2,7 @@
 //
 // Copyright 2022 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
 
@@ -24,7 +13,7 @@ use crate::graphmanager::{PortDirection, PortPresence};
 
 use gst::prelude::*;
 
-#[derive(Debug, PartialOrd, PartialEq)]
+#[derive(Debug, PartialOrd, PartialEq, Eq)]
 pub struct PadInfo {
     name: Option<String>,
     element_name: Option<String>,
@@ -54,7 +43,6 @@ impl PadInfo {
             gst::PadPresence::Always => PortPresence::Always,
             gst::PadPresence::Sometimes => PortPresence::Sometimes,
             gst::PadPresence::Request => PortPresence::Sometimes,
-            _ => PortPresence::Unknown,
         }
     }
 
@@ -63,41 +51,43 @@ impl PadInfo {
     }
 
     pub fn pads(element_name: &str, include_on_request: bool) -> (Vec<PadInfo>, Vec<PadInfo>) {
-        let feature = ElementInfo::element_feature(element_name).expect("Unable to get feature");
         let mut input = vec![];
         let mut output = vec![];
-
-        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()),
-                            });
+        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)
         }
-        (input, output)
     }
 }

src/gps/player.rs

@@ -2,24 +2,15 @@
 //
 // 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 crate::app::{AppState, GPSApp, GPSAppWeak};
-use crate::graphmanager::{GraphView, Node, NodeType, PortDirection, PropertyExt};
+use crate::graphmanager as GM;
+use crate::graphmanager::PropertyExt;
 
+use crate::common;
 use crate::gps::ElementInfo;
 use crate::logger;
 use crate::settings;
@@ -31,10 +22,11 @@ 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(Debug, Clone, Copy, PartialEq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum PipelineState {
     Playing,
     Paused,
@@ -44,7 +36,7 @@ pub enum PipelineState {
 
 impl fmt::Display for PipelineState {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{:?}", self)
+        write!(f, "{self:?}")
     }
 }
 
@@ -56,7 +48,7 @@ impl ops::Deref for Player {
     type Target = PlayerInner;
 
     fn deref(&self) -> &PlayerInner {
-        &*self.0
+        &self.0
     }
 }
 
@@ -69,12 +61,35 @@ impl PlayerWeak {
     }
 }
 
+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)]
 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 {
@@ -84,15 +99,16 @@ impl Player {
             pipeline: RefCell::new(None),
             current_state: Cell::new(PipelineState::Stopped),
             n_video_sink: Cell::new(0),
+            bus_watch_guard: RefCell::new(None),
         }));
-        #[cfg(feature = "gtk4-plugin")]
-        {
-            gstgtk4::plugin_register_static().expect("Failed to register gstgtk4 plugin");
-        }
-
+        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());
     }
@@ -107,38 +123,40 @@ impl Player {
             .parse::<bool>()
             .expect("Should a boolean value")
         {
-            ElementInfo::element_update_rank("gtk4paintablesink", gst::Rank::Primary);
+            ElementInfo::element_update_rank("gtk4paintablesink", gst::Rank::PRIMARY);
         } else {
-            ElementInfo::element_update_rank("gtk4paintablesink", gst::Rank::Marginal);
+            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.to_string())?;
+        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 {"
+                "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) = glib::MainContext::channel(glib::PRIORITY_DEFAULT);
+        let (ready_tx, ready_rx) = async_channel::unbounded::<gst::Element>();
         let player_weak = self.downgrade();
-        let _ = ready_rx.attach(None, move |element: gst::Element| {
-            let player = upgrade_weak!(player_weak, glib::Continue(false));
-            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::Continue(true)
+        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() {
@@ -146,7 +164,7 @@ impl Player {
                 if let Some(factory) = element.factory() {
                     GPS_INFO!("Received the signal deep element added {}", factory.name());
                     if factory.name() == "gtk4paintablesink" {
-                        let _ = ready_tx.send(element.clone());
+                        let _ = ready_tx.try_send(element.clone());
                     }
                 }
             });
@@ -157,7 +175,7 @@ impl Player {
 
     pub fn check_for_gtk4sink(&self, pipeline: &gst::Pipeline) {
         let bin = pipeline.clone().dynamic_cast::<gst::Bin>().unwrap();
-        let gtksinks = ElementInfo::search_fo_element(&bin, "gtk4paintablesink");
+        let gtksinks = ElementInfo::search_for_element(&bin, "gtk4paintablesink");
 
         for (first_sink, gtksink) in gtksinks.into_iter().enumerate() {
             let paintable = gtksink.property::<gdk::Paintable>("paintable");
@@ -171,25 +189,26 @@ impl Player {
 
     pub fn start_pipeline(
         &self,
-        graphview: &GraphView,
+        graphview: &GM::GraphView,
         new_state: PipelineState,
     ) -> anyhow::Result<PipelineState> {
         if self.state() == PipelineState::Stopped || self.state() == PipelineState::Error {
             let pipeline = self
-                .create_pipeline(&self.render_gst_launch(graphview))
+                .create_pipeline(&self.pipeline_description_from_graphview(graphview))
                 .map_err(|err| {
-                    GPS_ERROR!("Unable to start a pipeline: {}", err);
+                    GPS_ERROR!("Unable to create a pipeline: {}", err);
                     err
                 })?;
 
             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));
+            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::Continue(true)
+                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| {
@@ -207,6 +226,7 @@ impl Player {
                 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
                 }
             };
@@ -276,6 +296,9 @@ impl Player {
     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))
@@ -283,6 +306,9 @@ impl Player {
 
     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");
@@ -321,7 +347,7 @@ impl Player {
                 .unwrap()
                 .dynamic_cast::<gst::Bin>()
                 .unwrap();
-            let elements_name: Vec<String> = ElementInfo::search_fo_element(&bin, "")
+            let elements_name: Vec<String> = ElementInfo::search_for_element(&bin, "")
                 .iter()
                 .map(|e| e.factory().unwrap().name().to_string())
                 .collect();
@@ -331,45 +357,51 @@ impl Player {
     }
 
     // Render graph methods
+    #[allow(clippy::only_used_in_recursion)]
     fn process_gst_node(
         &self,
-        graphview: &GraphView,
-        node: &Node,
+        graphview: &GM::GraphView,
+        node: &GM::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));
+        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) {
-                description.push_str(&format!("{}={} ", name, value));
+                let _ = write!(description, "{name}={value} ");
             }
         }
         //Port properties
-        let ports = node.all_ports(PortDirection::All);
+        let ports = node.all_ports(GM::PortDirection::All);
         for port in ports {
             for (name, value) in port.properties().iter() {
                 if !port.hidden_property(name) {
-                    description.push_str(&format!("{}::{}={} ", port.name(), name, value));
+                    let _ = write!(description, "{}::{}={} ", port.name(), name, value);
                 }
             }
         }
 
-        let ports = node.all_ports(PortDirection::Output);
+        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 {
-                    description.push_str(&format!("{}. ! ", unique_name));
+                    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()) {
-                        description.push_str(&format!("{}. ", node.unique_name()));
+                        let _ = write!(description, "{}. ", node.unique_name());
                     } else {
                         description =
                             self.process_gst_node(graphview, &node, elements, description.clone());
@@ -380,8 +412,8 @@ impl Player {
         description
     }
 
-    pub fn render_gst_launch(&self, graphview: &GraphView) -> String {
-        let source_nodes = graphview.all_nodes(NodeType::Source);
+    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 {
@@ -390,19 +422,146 @@ impl Player {
         }
         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) {
-        // 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/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 +1,499 @@
+// 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)]
+enum TabState {
+    Undefined = 0,
+    Modified,
+    Saved,
+}
+#[derive(Debug, Clone)]
+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 graphview");
+        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 drawing_area_window: gtk::Viewport = gtk::Viewport::builder().build();
+    drawing_area_window.set_child(Some(&*graphtab(app, id).graphview()));
+
+    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(&drawing_area_window, Some(&tab_box));
+    graphbook.set_tab_reorderable(&drawing_area_window, 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.
+
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+patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license,
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+available, or (2) arrange to deprive yourself of the benefit of the
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+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
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+
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+
+A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
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+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
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+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. Limitation of Liability.
+
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+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
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+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

@@ -14,6 +14,10 @@ button.node-selected {
   background: rgb(170, 255, 170);
 }
 
+button.node-light {
+  border-style: dashed;
+}
+
 button.port {
   color: rgb(0, 0, 255);
   border-width: 2px;
@@ -44,4 +48,4 @@ button.port-always {
 
 graphview {
   background: #d0d2d4;
-}
+}

src/graphmanager/graphview.rs

@@ -3,18 +3,7 @@
 // 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
 
@@ -48,6 +37,7 @@ use std::cell::RefMut;
 use std::{cmp::Ordering, collections::HashMap};
 
 static GRAPHVIEW_STYLE: &str = include_str!("graphview.css");
+pub static GRAPHVIEW_XML_VERSION: &str = "0.1";
 
 mod imp {
     use super::*;
@@ -85,8 +75,9 @@ mod imp {
     }
 
     impl ObjectImpl for GraphView {
-        fn constructed(&self, obj: &Self::Type) {
-            self.parent_constructed(obj);
+        fn constructed(&self) {
+            let obj = self.obj();
+            self.parent_constructed();
 
             let drag_state = Rc::new(RefCell::new(None));
             let drag_controller = gtk::GestureDrag::new();
@@ -142,8 +133,6 @@ mod imp {
                 ),
             );
 
-            obj.add_controller(&drag_controller);
-
             let gesture = gtk::GestureClick::new();
             gesture.set_button(0);
             gesture.connect_pressed(
@@ -155,7 +144,7 @@ mod imp {
                         let target = widget.pick(x, y, gtk::PickFlags::DEFAULT).expect("port pick() did not return a widget");
                         if let Some(target) = target.ancestor(Port::static_type()) {
                             let port = target.dynamic_cast::<Port>().expect("click event is not on the Port");
-                            let node = port.ancestor(Node::static_type()).expect("Unable to reach parent").dynamic_cast::<Node>().expect("Unable to cast to Node");                      
+                            let node = port.ancestor(Node::static_type()).expect("Unable to reach parent").dynamic_cast::<Node>().expect("Unable to cast to Node");
                             obj.emit_by_name::<()>("port-right-clicked", &[&port.id(), &node.id(), &graphene::Point::new(x as f32,y as f32)]);
                         } else if let Some(target) = target.ancestor(Node::static_type()) {
                             let node = target.dynamic_cast::<Node>().expect("click event is not on the Node");
@@ -187,7 +176,7 @@ mod imp {
                 }),
             );
 
-            gesture.connect_released(clone!(@weak gesture, @weak drag_controller => move |_gesture, _n_press, x, y| {
+            gesture.connect_released(clone!(@weak gesture, @weak obj, @weak drag_controller => move |_gesture, _n_press, x, y| {
                 if gesture.current_button() == BUTTON_PRIMARY {
                     let widget = drag_controller
                             .widget()
@@ -215,7 +204,6 @@ mod imp {
                                             node_to.id(),
                                             port_from.id(),
                                             port_to.id(),
-                                            true,
                                          ));
                                     }
                                     widget.set_selected_port(None);
@@ -227,14 +215,28 @@ mod imp {
                                 // click to a linked port
                                 widget.set_selected_port(None);
                             }
-                        } else {
+                        }
+                        else {
+                            if let Some(target) = target.ancestor(Node::static_type()) {
+                                let node = target.dynamic_cast::<Node>().expect("click event is not on the Node");
+                                info!(" node id {}", node.id());
+                                if _n_press % 2 == 0  {
+                                    info!("double clicked node id {}", node.id());
+                                    obj.emit_by_name::<()>("node-double-clicked", &[&node.id(), &graphene::Point::new(x as f32,y as f32)]);
+                                }
+                            } else if _n_press % 2 == 0  {
+                                if let Some(link) = widget.point_on_link(&graphene::Point::new(x.floor() as f32,y.floor() as f32)) {
+                                    info!("double clicked link id {}", link.id());
+                                    obj.emit_by_name::<()>("link-double-clicked", &[&link.id(), &graphene::Point::new(x as f32,y as f32)]);
+                                }
+                            }
+
                             // Click to something else than a port
                             widget.set_selected_port(None);
                         }
                     }
                 }
             }));
-            obj.add_controller(&gesture);
 
             let event_motion = gtk::EventControllerMotion::new();
             event_motion.connect_motion(glib::clone!(@weak obj => move |_e, x, y| {
@@ -245,10 +247,13 @@ mod imp {
                 }
 
             }));
-            obj.add_controller(&event_motion);
+
+            obj.add_controller(drag_controller);
+            obj.add_controller(gesture);
+            obj.add_controller(event_motion);
         }
 
-        fn dispose(&self, _obj: &Self::Type) {
+        fn dispose(&self) {
             self.nodes
                 .borrow()
                 .values()
@@ -258,56 +263,40 @@ mod imp {
         fn signals() -> &'static [Signal] {
             static SIGNALS: Lazy<Vec<Signal>> = Lazy::new(|| {
                 vec![
-                    Signal::builder(
-                        "port-right-clicked",
-                        &[
-                            u32::static_type().into(),
-                            u32::static_type().into(),
-                            graphene::Point::static_type().into(),
-                        ],
-                        <()>::static_type().into(),
-                    )
-                    .build(),
-                    Signal::builder(
-                        "node-right-clicked",
-                        &[
-                            u32::static_type().into(),
-                            graphene::Point::static_type().into(),
-                        ],
-                        <()>::static_type().into(),
-                    )
-                    .build(),
-                    Signal::builder(
-                        "graph-right-clicked",
-                        &[graphene::Point::static_type().into()],
-                        <()>::static_type().into(),
-                    )
-                    .build(),
-                    Signal::builder(
-                        "graph-updated",
-                        // returns graph ID
-                        &[u32::static_type().into()],
-                        <()>::static_type().into(),
-                    )
-                    .build(),
-                    Signal::builder(
-                        "node-added",
-                        // returns graph ID and Node ID
-                        &[u32::static_type().into(), u32::static_type().into()],
-                        <()>::static_type().into(),
-                    )
-                    .build(),
-                    Signal::builder(
-                        "port-added",
-                        // returns graph ID, Node ID, Port ID
-                        &[
-                            u32::static_type().into(),
-                            u32::static_type().into(),
-                            u32::static_type().into(),
-                        ],
-                        <()>::static_type().into(),
-                    )
-                    .build(),
+                    Signal::builder("port-right-clicked")
+                        .param_types([
+                            u32::static_type(),
+                            u32::static_type(),
+                            graphene::Point::static_type(),
+                        ])
+                        .build(),
+                    Signal::builder("node-right-clicked")
+                        .param_types([u32::static_type(), graphene::Point::static_type()])
+                        .build(),
+                    Signal::builder("node-double-clicked")
+                        .param_types([u32::static_type(), graphene::Point::static_type()])
+                        .build(),
+                    Signal::builder("graph-right-clicked")
+                        .param_types([graphene::Point::static_type()])
+                        .build(),
+                    Signal::builder("graph-updated")
+                        .param_types(
+                            // returns graph ID
+                            [u32::static_type()],
+                        )
+                        .build(),
+                    Signal::builder("node-added")
+                        .param_types(
+                            // returns graph ID and Node ID
+                            [u32::static_type(), u32::static_type()],
+                        )
+                        .build(),
+                    Signal::builder("port-added")
+                        .param_types([u32::static_type(), u32::static_type(), u32::static_type()])
+                        .build(),
+                    Signal::builder("link-double-clicked")
+                        .param_types([u32::static_type(), graphene::Point::static_type()])
+                        .build(),
                 ]
             });
             SIGNALS.as_ref()
@@ -315,7 +304,7 @@ mod imp {
     }
 
     impl WidgetImpl for GraphView {
-        fn snapshot(&self, _widget: &Self::Type, snapshot: &gtk::Snapshot) {
+        fn snapshot(&self, snapshot: &gtk::Snapshot) {
             /* FIXME: A lot of hardcoded values in here.
             Try to use relative units (em) and colours from the theme as much as possible. */
 
@@ -323,14 +312,15 @@ mod imp {
             self.nodes
                 .borrow()
                 .values()
-                .for_each(|node| self.instance().snapshot_child(node, snapshot));
+                .for_each(|node| self.obj().snapshot_child(node, snapshot));
 
             for link in self.links.borrow().values() {
                 if let Some((from_x, from_y, to_x, to_y)) = self.link_coordinates(link) {
                     self.draw_link(
                         snapshot,
-                        link.active,
+                        link.active(),
                         link.selected(),
+                        link.name().as_str(),
                         link.thickness as f64,
                         &graphene::Point::new(from_x as f32, from_y as f32),
                         &graphene::Point::new(to_x as f32, to_y as f32),
@@ -354,6 +344,7 @@ mod imp {
                     snapshot,
                     false,
                     false,
+                    "",
                     2.0,
                     &graphene::Point::new(from_x as f32, from_y as f32),
                     &graphene::Point::new(to_x as f32, to_y as f32),
@@ -368,7 +359,7 @@ mod imp {
 
             let from_node = nodes
                 .get(&node_from)
-                .unwrap_or_else(|| panic!("Unable to get node from {}", node_from));
+                .unwrap_or_else(|| (panic!("Unable to get node from {}", node_from)));
 
             let from_port = from_node
                 .port(port_from)
@@ -422,17 +413,18 @@ mod imp {
             let (to_x, to_y) = self.link_to_coordinates(link.node_to, link.port_to);
             Some((from_x, from_y, to_x, to_y))
         }
-
+        #[allow(clippy::too_many_arguments)]
         fn draw_link(
             &self,
             snapshot: &gtk::Snapshot,
             active: bool,
             selected: bool,
+            name: &str,
             thickness: f64,
             point_from: &graphene::Point,
             point_to: &graphene::Point,
         ) {
-            let alloc = self.instance().allocation();
+            let alloc = self.obj().allocation();
 
             let link_cr = snapshot.append_cairo(&graphene::Rect::new(
                 0.0,
@@ -460,6 +452,13 @@ mod imp {
             if let Err(e) = link_cr.stroke() {
                 warn!("Failed to draw graphview links: {}", e);
             };
+            trace!("the link name is {}", name);
+            if !name.is_empty() {
+                let x = (point_from.x() + point_to.x()) / 2.0 + 20.0;
+                let y = (point_from.y() + point_to.y()) / 2.0 + 20.0;
+                link_cr.move_to(x as f64, y as f64);
+                let _ = link_cr.show_text(name);
+            }
         }
     }
 }
@@ -477,26 +476,26 @@ impl GraphView {
     pub fn new() -> Self {
         // Load CSS from the STYLE variable.
         let provider = gtk::CssProvider::new();
-        provider.load_from_data(GRAPHVIEW_STYLE.as_bytes());
-        gtk::StyleContext::add_provider_for_display(
+        provider.load_from_data(GRAPHVIEW_STYLE);
+        gtk::style_context_add_provider_for_display(
             &gtk::gdk::Display::default().expect("Error initializing gtk css provider."),
             &provider,
             gtk::STYLE_PROVIDER_PRIORITY_APPLICATION,
         );
-        glib::Object::new(&[]).expect("Failed to create GraphView")
+        glib::Object::new::<Self>()
     }
 
     /// Set graphview id
     ///
     pub fn set_id(&self, id: u32) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         private.id.set(id)
     }
 
-    /// Retrives the graphview id
+    /// Retrieves the graphview id
     ///
     pub fn id(&self) -> u32 {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         private.id.get()
     }
 
@@ -542,10 +541,10 @@ impl GraphView {
     /// Add node to the graphview without port
     ///
     pub fn add_node(&self, node: Node) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         node.set_parent(self);
 
-        // Place widgets in colums of 3, growing down
+        // Place widgets in columns of 3, growing down
         let x = if let Some(node_type) = node.node_type() {
             match node_type {
                 NodeType::Source => 20.0,
@@ -585,7 +584,7 @@ impl GraphView {
     /// Remove node from the graphview
     ///
     pub fn remove_node(&self, id: u32) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         let mut nodes = private.nodes.borrow_mut();
         if let Some(node) = nodes.remove(&id) {
             while let Some(link_id) = self.node_is_linked(node.id()) {
@@ -594,7 +593,7 @@ impl GraphView {
             }
             node.unparent();
         } else {
-            warn!("Tried to remove non-existant node (id={}) from graph", id);
+            warn!("Tried to remove non-existent node (id={}) from graph", id);
         }
         self.queue_draw();
     }
@@ -603,7 +602,7 @@ impl GraphView {
     ///
     /// Returns a vector of nodes
     pub fn all_nodes(&self, node_type: NodeType) -> Vec<Node> {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         let nodes = private.nodes.borrow();
         let nodes_list: Vec<_> = nodes
             .iter()
@@ -619,14 +618,27 @@ impl GraphView {
     ///
     /// Returns `None` if the node is not in the graphview.
     pub fn node(&self, id: u32) -> Option<Node> {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         private.nodes.borrow().get(&id).cloned()
     }
 
+    /// Get the node with the specified node name inside the graphview.
+    ///
+    /// Returns `None` if the node is not in the graphview.
+    pub fn node_by_unique_name(&self, unique_name: &str) -> Option<Node> {
+        let private = imp::GraphView::from_obj(self);
+        for node in private.nodes.borrow().values() {
+            if node.unique_name() == unique_name {
+                return Some(node.clone());
+            }
+        }
+        None
+    }
+
     /// Remove all the nodes from the graphview
     ///
     pub fn remove_all_nodes(&self) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         let nodes_list = self.all_nodes(NodeType::All);
         for node in nodes_list {
             self.remove_node(node.id());
@@ -641,7 +653,7 @@ impl GraphView {
     ///
     /// Returns Some(link id) or `None` if the node is not linked.
     pub fn node_is_linked(&self, node_id: u32) -> Option<u32> {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         for (key, link) in private.links.borrow().iter() {
             if link.node_from == node_id || link.node_to == node_id {
                 return Some(*key);
@@ -689,7 +701,7 @@ impl GraphView {
     /// Add the port with id from node with id.
     ///
     pub fn add_port_to_node(&self, node: &mut Node, port: Port) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         let port_id = port.id();
         node.add_port(port);
 
@@ -700,7 +712,7 @@ impl GraphView {
     ///
     /// Return true if the port presence is not always.
     pub fn can_remove_port(&self, node_id: u32, port_id: u32) -> bool {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         let nodes = private.nodes.borrow();
         if let Some(node) = nodes.get(&node_id) {
             return node.can_remove_port(port_id);
@@ -712,7 +724,7 @@ impl GraphView {
     /// Remove the port with id from node with id.
     ///
     pub fn remove_port(&self, node_id: u32, port_id: u32) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         let nodes = private.nodes.borrow();
         if let Some(node) = nodes.get(&node_id) {
             if let Some(link_id) = self.port_is_linked(port_id) {
@@ -726,7 +738,7 @@ impl GraphView {
     ///
     /// Returns Some(link id) or `None` if the port is not linked.
     pub fn port_is_linked(&self, port_id: u32) -> Option<u32> {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         for (key, link) in private.links.borrow().iter() {
             if link.port_from == port_id || link.port_to == port_id {
                 return Some(*key);
@@ -745,7 +757,6 @@ impl GraphView {
         node_to_id: u32,
         port_from_id: u32,
         port_to_id: u32,
-        active: bool,
     ) -> Link {
         self.create_link_with_id(
             self.next_link_id(),
@@ -753,14 +764,13 @@ impl GraphView {
             node_to_id,
             port_from_id,
             port_to_id,
-            active,
         )
     }
 
     /// Add a link to the graphView
     ///
     pub fn add_link(&self, link: Link) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         if !self.link_exists(&link) {
             private.links.borrow_mut().insert(link.id, link);
             self.graph_updated();
@@ -770,9 +780,9 @@ impl GraphView {
     /// Set the link state with ink id and link state (boolean)
     ///
     pub fn set_link_state(&self, link_id: u32, active: bool) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         if let Some(link) = private.links.borrow_mut().get_mut(&link_id) {
-            link.active = active;
+            link.set_active(active);
             self.queue_draw();
         } else {
             warn!("Link state changed on unknown link (id={})", link_id);
@@ -783,20 +793,45 @@ impl GraphView {
     ///
     /// Returns a vector of links
     pub fn all_links(&self, link_state: bool) -> Vec<Link> {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         let links = private.links.borrow();
         let links_list: Vec<_> = links
             .iter()
-            .filter(|(_, link)| link.active == link_state)
+            .filter(|(_, link)| link.active() == link_state)
             .map(|(_, node)| node.clone())
             .collect();
         links_list
     }
 
+    /// Get the link with the specified link id inside the graphview.
+    ///
+    /// Returns `None` if the link is not in the graphview.
+    pub fn link(&self, id: u32) -> Option<Link> {
+        let private = imp::GraphView::from_obj(self);
+        private.links.borrow().get(&id).cloned()
+    }
+
+    /// Set the link state with ink id and link state (boolean)
+    ///
+    pub fn set_link_name(&self, link_id: u32, name: &str) {
+        let private = imp::GraphView::from_obj(self);
+        let mut updated = false;
+        if let Some(link) = private.links.borrow_mut().get_mut(&link_id) {
+            link.set_name(name);
+            self.queue_draw();
+            updated = true;
+        } else {
+            warn!("Link name changed on unknown link (id={})", link_id);
+        }
+        if updated {
+            self.graph_updated();
+        }
+    }
+
     /// Retrieves the node/port id connected to the input port id
     ///
     pub fn port_connected_to(&self, port_id: u32) -> Option<(u32, u32)> {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         for (_id, link) in private.links.borrow().iter() {
             if port_id == link.port_from {
                 return Some((link.port_to, link.node_to));
@@ -805,10 +840,22 @@ impl GraphView {
         None
     }
 
+    /// Retrieves the link connected to the port id
+    ///
+    pub fn port_link(&self, port_id: u32) -> Option<Link> {
+        let private = imp::GraphView::from_obj(self);
+        for (_id, link) in private.links.borrow().iter() {
+            if port_id == link.port_from {
+                return Some(link.clone());
+            }
+        }
+        None
+    }
+
     /// Delete the selected element (link, node, port)
     ///
     pub fn delete_selected(&self) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         let mut link_id = None;
         let mut node_id = None;
         for link in private.links.borrow_mut().values() {
@@ -834,15 +881,18 @@ impl GraphView {
     /// Render the graph with XML format in a buffer
     ///
     pub fn render_xml(&self) -> anyhow::Result<Vec<u8>> {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
 
         let mut buffer = Vec::new();
         let mut writer = EmitterConfig::new()
             .perform_indent(true)
             .create_writer(&mut buffer);
 
-        writer
-            .write(XMLWEvent::start_element("Graph").attr("id", &private.id.get().to_string()))?;
+        writer.write(
+            XMLWEvent::start_element("Graph")
+                .attr("id", &private.id.get().to_string())
+                .attr("version", GRAPHVIEW_XML_VERSION),
+        )?;
 
         //Get the nodes
         let nodes = self.all_nodes(NodeType::All);
@@ -853,7 +903,8 @@ impl GraphView {
                     .attr("id", &node.id().to_string())
                     .attr("type", &node.node_type().unwrap().to_string())
                     .attr("pos_x", &node.position().0.to_string())
-                    .attr("pos_y", &node.position().1.to_string()),
+                    .attr("pos_y", &node.position().1.to_string())
+                    .attr("light", &node.light().to_string()),
             )?;
             for port in node.ports().values() {
                 writer.write(
@@ -893,7 +944,8 @@ impl GraphView {
                     .attr("node_to", &link.node_to.to_string())
                     .attr("port_from", &link.port_from.to_string())
                     .attr("port_to", &link.port_to.to_string())
-                    .attr("active", &link.active.to_string()),
+                    .attr("name", &link.name())
+                    .attr("active", &link.active().to_string()),
             )?;
             writer.write(XMLWEvent::end_element())?;
         }
@@ -931,6 +983,11 @@ impl GraphView {
                             if let Some(id) = attrs.get::<String>(&String::from("id")) {
                                 self.set_id(id.parse::<u32>().expect("id should be an u32"));
                             }
+                            if let Some(version) = attrs.get::<String>(&"version".to_string()) {
+                                info!("Found file format version: {}", version);
+                            } else {
+                                warn!("No file format version found");
+                            }
                         }
                         "Node" => {
                             let id = attrs
@@ -949,6 +1006,10 @@ impl GraphView {
                             let pos_y: &String = attrs
                                 .get::<String>(&String::from("pos_y"))
                                 .unwrap_or(&default_value);
+                            let default_value = String::from("false");
+                            let light: &String = attrs
+                                .get::<String>(&String::from("light"))
+                                .unwrap_or(&default_value);
                             let node = self.create_node_with_id(
                                 id.parse::<u32>().unwrap(),
                                 name,
@@ -958,6 +1019,7 @@ impl GraphView {
                                 pos_x.parse::<f32>().unwrap(),
                                 pos_y.parse::<f32>().unwrap(),
                             );
+                            node.set_light(light.parse::<bool>().unwrap());
                             current_node = Some(node);
                         }
                         "Property" => {
@@ -1014,14 +1076,21 @@ impl GraphView {
                             let active: &String = attrs
                                 .get::<String>(&String::from("active"))
                                 .expect("Unable to find link state");
-                            current_link = Some(self.create_link_with_id(
+                            let default_value = String::from("");
+                            let name: &String = attrs
+                                .get::<String>(&String::from("name"))
+                                .unwrap_or(&default_value);
+                            let link = self.create_link_with_id(
                                 id.parse::<u32>().unwrap(),
                                 node_from.parse::<u32>().unwrap(),
                                 node_to.parse::<u32>().unwrap(),
                                 port_from.parse::<u32>().unwrap(),
                                 port_to.parse::<u32>().unwrap(),
-                                active.parse::<bool>().unwrap(),
-                            ));
+                            );
+
+                            link.set_active(active.parse::<bool>().unwrap());
+                            link.set_name(name.parse::<String>().unwrap().as_str());
+                            current_link = Some(link);
                         }
                         _ => warn!("name unknown: {}", name),
                     }
@@ -1105,21 +1174,12 @@ impl GraphView {
         node_to_id: u32,
         port_from_id: u32,
         port_to_id: u32,
-        active: bool,
     ) -> Link {
-        Link::new(
-            link_id,
-            node_from_id,
-            node_to_id,
-            port_from_id,
-            port_to_id,
-            active,
-            false,
-        )
+        Link::new(link_id, node_from_id, node_to_id, port_from_id, port_to_id)
     }
 
     fn remove_link(&self, id: u32) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         let mut links = private.links.borrow_mut();
         links.remove(&id);
 
@@ -1127,14 +1187,14 @@ impl GraphView {
     }
 
     fn update_current_link_id(&self, link_id: u32) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         if link_id > private.current_link_id.get() {
             private.current_link_id.set(link_id);
         }
     }
 
     fn link_exists(&self, new_link: &Link) -> bool {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
 
         for link in private.links.borrow().values() {
             if (new_link.port_from == link.port_from && new_link.port_to == link.port_to)
@@ -1161,8 +1221,7 @@ impl GraphView {
 
         let transform = gsk::Transform::new()
             // Nodes should not be able to be dragged out of the view, so we use `max(coordinate, 0.0)` to prevent that.
-            .translate(&graphene::Point::new(f32::max(x, 0.0), f32::max(y, 0.0)))
-            .unwrap();
+            .translate(&graphene::Point::new(f32::max(x, 0.0), f32::max(y, 0.0)));
 
         layout_manager
             .layout_child(widget)
@@ -1176,7 +1235,7 @@ impl GraphView {
     }
 
     fn unselect_nodes(&self) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         for node in private.nodes.borrow_mut().values() {
             node.set_selected(false);
             node.unselect_all_ports();
@@ -1184,14 +1243,14 @@ impl GraphView {
     }
 
     fn update_current_node_id(&self, node_id: u32) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         if node_id > private.current_node_id.get() {
             private.current_node_id.set(node_id);
         }
     }
 
     fn unselect_links(&self) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         for link in private.links.borrow_mut().values() {
             link.set_selected(false);
         }
@@ -1204,7 +1263,7 @@ impl GraphView {
     }
 
     fn point_on_link(&self, point: &graphene::Point) -> Option<Link> {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         self.unselect_all();
         for link in private.links.borrow_mut().values() {
             if let Some((from_x, from_y, to_x, to_y)) = private.link_coordinates(link) {
@@ -1226,13 +1285,13 @@ impl GraphView {
     }
 
     fn graph_updated(&self) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         self.queue_draw();
         self.emit_by_name::<()>("graph-updated", &[&private.id.get()]);
     }
 
     fn next_node_id(&self) -> u32 {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         private
             .current_node_id
             .set(private.current_node_id.get() + 1);
@@ -1240,7 +1299,7 @@ impl GraphView {
     }
 
     fn next_port_id(&self) -> u32 {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         private
             .current_port_id
             .set(private.current_port_id.get() + 1);
@@ -1248,7 +1307,7 @@ impl GraphView {
     }
 
     fn next_link_id(&self) -> u32 {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         private
             .current_link_id
             .set(private.current_link_id.get() + 1);
@@ -1259,17 +1318,17 @@ impl GraphView {
         if port.is_some() {
             self.unselect_all();
         }
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         *private.port_selected.borrow_mut() = port.cloned();
     }
 
     fn selected_port(&self) -> RefMut<Option<Port>> {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         private.port_selected.borrow_mut()
     }
 
     fn set_mouse_position(&self, x: f64, y: f64) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         private.mouse_position.set((x, y));
     }
 
@@ -1298,7 +1357,7 @@ impl GraphView {
     }
 
     fn update_current_port_id(&self, port_id: u32) {
-        let private = imp::GraphView::from_instance(self);
+        let private = imp::GraphView::from_obj(self);
         if port_id > private.current_port_id.get() {
             private.current_port_id.set(port_id);
         }

src/graphmanager/link.rs

@@ -3,23 +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 super::SelectionExt;
-use std::cell::Cell;
+use std::cell::{Cell, RefCell};
 
 #[derive(Debug, Clone)]
 pub struct Link {
@@ -28,44 +17,49 @@ 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 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,
-        active: bool,
-        selected: bool,
-    ) -> Self;
+    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,
-        active: bool,
-        selected: bool,
-    ) -> Self {
+    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()),
         }
     }
 }

src/graphmanager/mod.rs

@@ -6,7 +6,6 @@ mod property;
 mod selection;
 
 pub use graphview::GraphView;
-pub use link::Link;
 pub use node::Node;
 pub use node::NodeType;
 pub use port::Port;
@@ -104,11 +103,15 @@ mod test {
             // 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, true);
+            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, true);
+            let link = graphview.create_link(2, 3, 3, 4);
             graphview.add_link(link);
 
             // Save the graphview in XML into a buffer

src/graphmanager/node.rs

@@ -3,20 +3,10 @@
 // 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::*;
@@ -28,8 +18,9 @@ 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:?}")
     }
 }
 
@@ -59,6 +50,7 @@ impl NodeType {
 mod imp {
     use super::*;
     use once_cell::unsync::OnceCell;
+    #[derive(Default)]
     pub struct Node {
         pub(super) layoutgrid: gtk::Grid,
         pub(super) name: gtk::Label,
@@ -71,7 +63,9 @@ mod imp {
         // 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]
@@ -110,25 +104,19 @@ mod imp {
                 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),
-                position: Cell::new((0.0, 0.0)),
+                ..Default::default()
             }
         }
     }
 
     impl ObjectImpl for Node {
-        fn constructed(&self, obj: &Self::Type) {
-            self.parent_constructed(obj);
-            self.layoutgrid.set_parent(obj);
+        fn constructed(&self) {
+            let obj = self.obj();
+            self.parent_constructed();
+            self.layoutgrid.set_parent(&*obj);
         }
 
-        fn dispose(&self, _obj: &Self::Type) {
+        fn dispose(&self) {
             self.layoutgrid.unparent();
         }
     }
@@ -145,10 +133,13 @@ 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
@@ -160,7 +151,7 @@ impl Node {
     /// Add a new port to the node
     ///
     pub fn add_port(&mut self, port: Port) {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         match port.direction() {
             PortDirection::Input => {
                 private
@@ -182,7 +173,7 @@ impl Node {
     /// 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()
     }
 
@@ -201,14 +192,27 @@ impl Node {
     /// Retrieves the port with id
     ///
     pub fn port(&self, id: u32) -> Option<super::port::Port> {
-        let private = imp::Node::from_instance(self);
+        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_instance(self);
+        let private = imp::Node::from_obj(self);
         if let Some(port) = private.ports.borrow().get(&id) {
             if port.presence() != PortPresence::Always {
                 return true;
@@ -220,7 +224,7 @@ impl Node {
     /// 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),
@@ -234,37 +238,42 @@ 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()
     }
 
     /// Unselect all the ports of the given node.
     ///
     pub fn unselect_all_ports(&self) {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         for port in private.ports.borrow_mut().values() {
             port.set_selected(false);
         }
@@ -273,7 +282,7 @@ impl Node {
     /// Set coordinates for the drawn node.
     ///
     pub fn set_position(&self, x: f32, y: f32) {
-        imp::Node::from_instance(self).position.set((x, y));
+        imp::Node::from_obj(self).position.set((x, y));
     }
 
     /// Get coordinates for the drawn node.
@@ -281,28 +290,43 @@ impl Node {
     /// # Returns
     /// `(x, y)`
     pub fn position(&self) -> (f32, f32) {
-        imp::Node::from_instance(self).position.get()
+        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_instance(self);
+        let self_ = imp::Node::from_obj(self);
         self_.name.set_text(name);
     }
 
     fn set_description(&self, description: &str) {
-        let self_ = imp::Node::from_instance(self);
+        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_instance(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) {
-                description.push_str(&format!("{}:{}", name, value));
+                let _ = write!(description, "{name}:{value}");
                 description.push('\n');
             }
         }
@@ -316,7 +340,7 @@ impl SelectionExt for Node {
     }
 
     fn set_selected(&self, selected: bool) {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         private.selected.set(selected);
         if selected {
             self.add_css_class("node-selected");
@@ -326,7 +350,7 @@ impl SelectionExt for Node {
     }
 
     fn selected(&self) -> bool {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         private.selected.get()
     }
 }
@@ -335,7 +359,7 @@ 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_instance(self);
+        let private = imp::Node::from_obj(self);
         trace!("property name={} updated with value={}", name, value);
         private
             .properties
@@ -347,7 +371,7 @@ impl PropertyExt for Node {
     /// Remove a port property with a name.
     ///
     fn remove_property(&self, name: &str) {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         trace!("property name={} removed", name);
         private.properties.borrow_mut().remove(name);
         self.update_description();
@@ -356,7 +380,7 @@ impl PropertyExt for Node {
     /// Retrieves node properties.
     ///
     fn properties(&self) -> Ref<HashMap<String, String>> {
-        let private = imp::Node::from_instance(self);
+        let private = imp::Node::from_obj(self);
         private.properties.borrow()
     }
 }

src/graphmanager/port.rs

@@ -3,20 +3,10 @@
 // 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::*,
@@ -30,7 +20,7 @@ use std::fmt;
 
 use super::{PropertyExt, SelectionExt};
 
-#[derive(Debug, Clone, PartialOrd, PartialEq, Copy)]
+#[derive(Debug, Clone, PartialOrd, PartialEq, Eq, Copy)]
 pub enum PortDirection {
     Input,
     Output,
@@ -40,7 +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:?}")
     }
 }
 
@@ -56,9 +46,9 @@ impl PortDirection {
 }
 
 /// Port's presence
-#[derive(Debug, Clone, PartialEq, PartialOrd, Copy)]
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Copy)]
 pub enum PortPresence {
-    /// Can not be removed from his parent independantly
+    /// Can not be removed from his parent independently
     Always,
     /// Can be removed from a node
     Sometimes,
@@ -67,7 +57,7 @@ pub enum PortPresence {
 
 impl fmt::Display for PortPresence {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{:?}", self)
+        write!(f, "{self:?}")
     }
 }
 
@@ -86,7 +76,7 @@ mod imp {
     use once_cell::unsync::OnceCell;
 
     /// Graphical representation of a port.
-    #[derive(Default, Clone)]
+    #[derive(Default)]
     pub struct Port {
         pub(super) label: gtk::Label,
         pub(super) id: OnceCell<u32>,
@@ -123,11 +113,12 @@ mod imp {
     }
 
     impl ObjectImpl for Port {
-        fn constructed(&self, obj: &Self::Type) {
-            self.parent_constructed(obj);
-            self.label.set_parent(obj);
+        fn constructed(&self) {
+            let obj = self.obj();
+            self.parent_constructed();
+            self.label.set_parent(&*obj);
         }
-        fn dispose(&self, _obj: &Self::Type) {
+        fn dispose(&self) {
             self.label.unparent()
         }
     }
@@ -144,9 +135,9 @@ impl 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
@@ -175,35 +166,35 @@ impl 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_instance(self);
+        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_instance(self);
+        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")
     }
 
     /// Retrieves the port presence
     ///
     pub fn presence(&self) -> PortPresence {
-        let private = imp::Port::from_instance(self);
+        let private = imp::Port::from_obj(self);
         *private.presence.get().expect("Port presence is not set")
     }
 }
@@ -214,7 +205,7 @@ impl SelectionExt for Port {
     }
 
     fn set_selected(&self, selected: bool) {
-        let private = imp::Port::from_instance(self);
+        let private = imp::Port::from_obj(self);
         private.selected.set(selected);
         if selected {
             self.add_css_class("port-selected");
@@ -224,7 +215,7 @@ impl SelectionExt for Port {
     }
 
     fn selected(&self) -> bool {
-        let private = imp::Port::from_instance(self);
+        let private = imp::Port::from_obj(self);
         private.selected.get()
     }
 }
@@ -233,7 +224,7 @@ 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_instance(self);
+        let private = imp::Port::from_obj(self);
         trace!("property name={} updated with value={}", name, value);
         private
             .properties
@@ -244,7 +235,7 @@ impl PropertyExt for Port {
     /// Remove a port property with a name.
     ///
     fn remove_property(&self, name: &str) {
-        let private = imp::Port::from_instance(self);
+        let private = imp::Port::from_obj(self);
         trace!("property name={} removed", name);
         private.properties.borrow_mut().remove(name);
     }
@@ -252,7 +243,7 @@ impl PropertyExt for Port {
     /// Retrieves node properties.
     ///
     fn properties(&self) -> Ref<HashMap<String, String>> {
-        let private = imp::Port::from_instance(self);
+        let private = imp::Port::from_obj(self);
         private.properties.borrow()
     }
 }

src/graphmanager/property.rs

@@ -2,20 +2,10 @@
 //
 // Copyright 2022 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 log::info;
 use std::cell::Ref;
 use std::collections::HashMap;

src/graphmanager/selection.rs

@@ -2,18 +2,7 @@
 //
 // Copyright 2022 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
 

src/logger.rs

@@ -1,4 +1,11 @@
-use gtk::glib::Sender;
+// logger.rs
+//
+// Copyright 2022 Stéphane Cerveau <scerveau@collabora.com>
+//
+// This file is part of GstPipelineStudio
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
 use log::{debug, error, info, trace, warn};
 use simplelog::*;
 use std::fmt;
@@ -6,18 +13,48 @@ 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,
     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:?}")
     }
 }
 
@@ -25,7 +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()));
     })
 );
 
@@ -33,7 +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()));
     })
 );
 
@@ -41,7 +78,7 @@ macro_rules! GPS_WARN (
 macro_rules! GPS_INFO (
     () => ($crate::print!("\n"));
     ($($arg:tt)*) => ({
-        logger::print_log(logger::LogLevel::Info, format_args!($($arg)*).to_string());
+        logger::print_log(logger::LogLevel::Info, format!("{}\t{}",glib::function_name!(),format_args!($($arg)*).to_string()));
     })
 );
 
@@ -49,7 +86,23 @@ macro_rules! GPS_INFO (
 macro_rules! GPS_DEBUG (
     () => ($crate::print!("\n"));
     ($($arg:tt)*) => ({
-        logger::print_log(logger::LogLevel::Debug, format_args!($($arg)*).to_string());
+        logger::print_log(logger::LogLevel::Debug, format!("{}\t{}",glib::function_name!(),format_args!($($arg)*).to_string()));
+    })
+);
+
+#[macro_export]
+macro_rules! GPS_MSG_LOG (
+    () => ($crate::print!("\n"));
+    ($($arg:tt)*) => ({
+        logger::print_msg_logger(logger::LogType::Message, format_args!($($arg)*).to_string());
+    })
+);
+
+#[macro_export]
+macro_rules! GPS_GST_LOG (
+    () => ($crate::print!("\n"));
+    ($($arg:tt)*) => ({
+        logger::print_msg_logger(logger::LogType::Gst, format_args!($($arg)*).to_string());
     })
 );
 
@@ -62,7 +115,7 @@ macro_rules! GPS_TRACE (
 );
 
 struct WriteAdapter {
-    sender: Sender<String>,
+    sender: async_channel::Sender<(LogType, String)>,
     buffer: String,
 }
 
@@ -73,8 +126,8 @@ impl io::Write for WriteAdapter {
             .push_str(&String::from_utf8(buf.to_vec()).unwrap());
         if self.buffer.ends_with('\n') {
             self.buffer.pop();
-            self.sender.send(self.buffer.clone()).unwrap();
-            self.buffer = String::from("");
+            let _ = self.sender.try_send((LogType::App, self.buffer.clone()));
+            self.buffer.clear();
         }
 
         Ok(buf.len())
@@ -87,6 +140,7 @@ impl io::Write for WriteAdapter {
 
 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,
@@ -95,12 +149,12 @@ fn translate_to_simple_logger(log_level: LogLevel) -> LevelFilter {
     }
 }
 
-pub fn init_logger(sender: Sender<String>, log_file: &str) {
+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(),
+            File::create(log_file).unwrap_or_else(|_| panic!("Unable to create log {}", log_file)),
         ),
         WriteLogger::new(
             translate_to_simple_logger(LogLevel::Debug),
@@ -120,6 +174,10 @@ pub fn init_logger(sender: Sender<String>, log_file: &str) {
     .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) {
     match log_level {
         LogLevel::Error => {
@@ -137,5 +195,39 @@ pub fn print_log(log_level: LogLevel, msg: String) {
         LogLevel::Trace => {
             trace!("{}", 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

@@ -2,25 +2,16 @@
 //
 // 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 app;
 mod common;
 mod config;
+mod graphbook;
 mod graphmanager;
 mod ui;
 #[macro_use]
@@ -31,14 +22,29 @@ 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',
@@ -9,12 +8,7 @@ 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',
@@ -38,27 +32,32 @@ rust_sources = files(
   'logger.rs',
   'macros.rs',
   'main.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/settings.rs

@@ -1,3 +1,11 @@
+// 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;
@@ -9,10 +17,12 @@ use crate::config;
 use crate::logger;
 
 #[derive(Debug, Serialize, Deserialize, Default)]
+#[serde(default)]
 pub struct Settings {
     pub app_maximized: bool,
     pub app_width: i32,
     pub app_height: i32,
+    pub recent_pipeline: String,
 
     // values must be emitted before tables
     pub favorites: Vec<String>,
@@ -21,44 +31,66 @@ pub struct Settings {
 }
 
 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
+    }
+
+    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 default_graph_file_path() -> PathBuf {
-        let mut path = glib::user_config_dir();
-        path.push(config::APP_ID);
+    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 default_log_file_path() -> PathBuf {
-        let mut path = PathBuf::new();
+    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();
@@ -72,7 +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 {
@@ -83,8 +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);
         }
@@ -92,7 +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,

src/ui/about.rs

@@ -2,25 +2,15 @@
 //
 // 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 crate::app::GPSApp;
 use crate::config;
-use gettextrs::gettext;
-use gtk::builders::AboutDialogBuilder;
+use crate::gps as GPS;
 use gtk::prelude::*;
+use gtk::AboutDialog;
 
 use gtk::ApplicationWindow;
 
@@ -29,15 +19,19 @@ pub fn display_about_dialog(app: &GPSApp) {
         .builder
         .object("mainwindow")
         .expect("Couldn't get window");
-    let about_dialog = AboutDialogBuilder::new()
+    let about_dialog = AboutDialog::builder()
         .modal(true)
         .program_name("GstPipelineStudio")
         .version(config::VERSION)
-        .comments(&gettext("Draw your own GStreamer pipeline"))
+        .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(&gettext("translator-credits"))
+        .translator_credits("translator-credits")
         .logo_icon_name(config::APP_ID)
         .license_type(gtk::License::Gpl30)
         .transient_for(&window)

src/ui/dialog.rs

@@ -2,20 +2,10 @@
 //
 // Copyright 2022 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 crate::app::GPSApp;
 
 use gtk::glib;
@@ -53,3 +43,54 @@ pub fn create_dialog<F: Fn(GPSApp, gtk::Dialog) + 'static>(
 
     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

@@ -2,18 +2,7 @@
 //
 // Copyright 2022 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
 
@@ -30,7 +19,7 @@ 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::get_favorites_list();
+    let favorites = Settings::favorites_list();
     for favorite in favorites {
         model.insert_with_values(None, &[(0, &favorite)]);
     }
@@ -41,7 +30,7 @@ pub fn setup_favorite_list(app: &GPSApp) {
         .builder
         .object("treeview-favorites")
         .expect("Couldn't get treeview-favorites");
-    treeview::add_column_to_treeview(app, "treeview-favorites", "Name", 0);
+    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| {
@@ -95,11 +84,11 @@ pub fn setup_favorite_list(app: &GPSApp) {
             }
         }),
     );
-    favorite_list.add_controller(&gesture);
+    favorite_list.add_controller(gesture);
 }
 
 pub fn add_to_favorite_list(app: &GPSApp, element_name: String) {
-    let mut favorites = Settings::get_favorites_list();
+    let mut favorites = Settings::favorites_list();
     favorites.sort();
     if !favorites.contains(&element_name) {
         let favorite_list: TreeView = app
@@ -130,7 +119,7 @@ pub fn setup_elements_list(app: &GPSApp) {
         .builder
         .object("treeview-elements")
         .expect("Couldn't get treeview-elements");
-    treeview::add_column_to_treeview(app, "treeview-elements", "Name", 0);
+    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| {

src/ui/gps.ui

@@ -11,12 +11,21 @@
       <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>
+        <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>
-        <attribute name="accel">&lt;primary&gt;n</attribute>
       </item>
       <item>
         <attribute name="label" translatable="yes" comments="Primary menu entry that open the preferences">_Preferences</attribute>
@@ -43,6 +52,10 @@
   </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>
@@ -60,6 +73,14 @@
         <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>
@@ -192,7 +213,7 @@
                     <property name="hexpand">True</property>
                     <property name="vexpand">True</property>
                     <property name="child">
-                      <object class="GtkViewport" id="drawing_area">
+                      <object class="GtkNotebook" id="graphbook">
                         <child>
                           <placeholder/>
                         </child>
@@ -201,11 +222,56 @@
                   </object>
                 </child>
                 <child>
-                  <object class="GtkScrolledWindow">
-                    <property name="child">
-                      <object class="GtkTreeView" id="treeview-logger"/>
-                    </property>
-                  </object>
+                <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>

src/ui/logger.rs

@@ -2,23 +2,15 @@
 //
 // Copyright 2022 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 crate::app::GPSApp;
+use crate::logger;
 use crate::ui::treeview;
 use gtk::prelude::*;
+use gtk::{gio, glib};
 
 use gtk::{ListStore, TreeView};
 
@@ -27,31 +19,117 @@ fn reset_logger_list(logger_list: &TreeView) {
         String::static_type(),
         String::static_type(),
         String::static_type(),
+        String::static_type(),
+        String::static_type(),
     ]);
     logger_list.set_model(Some(&model));
 }
 
-pub fn setup_logger_list(app: &GPSApp) {
-    treeview::add_column_to_treeview(app, "treeview-logger", "TIME", 0);
-    treeview::add_column_to_treeview(app, "treeview-logger", "LEVEL", 1);
-    treeview::add_column_to_treeview(app, "treeview-logger", "LOG", 2);
+pub fn setup_logger_list(app: &GPSApp, logger_name: &str, log_type: logger::LogType) {
+    match log_type {
+        logger::LogType::App => {
+            treeview::add_column_to_treeview(app, logger_name, "TIME", 0, false);
+            treeview::add_column_to_treeview(app, logger_name, "LEVEL", 1, false);
+            treeview::add_column_to_treeview(app, logger_name, "LOG", 2, true);
+        }
+        logger::LogType::Gst => {
+            treeview::add_column_to_treeview(app, logger_name, "TIME", 0, false);
+            treeview::add_column_to_treeview(app, logger_name, "LEVEL", 1, false);
+            treeview::add_column_to_treeview(app, logger_name, "CATEGORY", 2, false);
+            treeview::add_column_to_treeview(app, logger_name, "FILE", 3, false);
+            treeview::add_column_to_treeview(app, logger_name, "LOG", 4, true);
+        }
+        logger::LogType::Message => {
+            treeview::add_column_to_treeview(app, logger_name, "TIME", 0, false);
+            treeview::add_column_to_treeview(app, logger_name, "LEVEL", 1, false);
+            treeview::add_column_to_treeview(app, logger_name, "LOG", 2, true);
+        }
+    }
+
     let logger_list: TreeView = app
         .builder
-        .object("treeview-logger")
-        .expect("Couldn't get treeview-logger");
+        .object(logger_name)
+        .expect("Couldn't get treeview-app-logger");
     reset_logger_list(&logger_list);
+
+    let gesture = gtk::GestureClick::new();
+    gesture.set_button(0);
+    let app_weak = app.downgrade();
+    gesture.connect_pressed(
+        glib::clone!(@weak logger_list => move |gesture, _n_press, x, y| {
+            let app = upgrade_weak!(app_weak);
+            if gesture.current_button() == gtk::gdk::BUTTON_SECONDARY {
+                    let pop_menu = app.app_pop_menu_at_position(&logger_list, x, y);
+                    let menu: gio::MenuModel = app
+                    .builder
+                    .object("logger_menu")
+                    .expect("Couldn't get fav_menu model");
+                    pop_menu.set_menu_model(Some(&menu));
+
+                    app.connect_app_menu_action("logger.clear",
+                        move |_,_| {
+                            reset_logger_list(&logger_list);
+                        }
+                    );
+
+                    pop_menu.show();
+            }
+        }),
+    );
+    logger_list.add_controller(gesture);
 }
 
-pub fn add_to_logger_list(app: &GPSApp, log_entry: &str) {
+fn log_tree_id_from_log_type(log_type: logger::LogType) -> String {
+    match log_type {
+        logger::LogType::App => String::from("treeview-app-logger"),
+        logger::LogType::Gst => String::from("treeview-gst-logger"),
+        logger::LogType::Message => String::from("treeview-msg-logger"),
+    }
+}
+
+pub fn add_to_logger_list(app: &GPSApp, log_type: logger::LogType, log_entry: &str) {
+    let log_tree_name = log_tree_id_from_log_type(log_type.clone());
     let logger_list: TreeView = app
         .builder
-        .object("treeview-logger")
-        .expect("Couldn't get treeview-logger");
+        .object(log_tree_name.as_str())
+        .expect("Couldn't get treeview");
     if let Some(model) = logger_list.model() {
         let list_store = model
             .dynamic_cast::<ListStore>()
             .expect("Could not cast to ListStore");
-        let log: Vec<&str> = log_entry.splitn(3, ' ').collect();
-        list_store.insert_with_values(None, &[(0, &log[0]), (1, &log[1]), (2, &log[2])]);
+        if log_type == logger::LogType::Gst {
+            let log: Vec<&str> = log_entry.splitn(5, '\t').collect();
+            list_store.insert_with_values(
+                Some(0),
+                &[
+                    (0, &log[0]),
+                    (1, &log[1]),
+                    (2, &log[2]),
+                    (3, &log[3]),
+                    (4, &log[4]),
+                ],
+            );
+        } else {
+            let log: Vec<&str> = log_entry.splitn(3, ' ').collect();
+            let mut indexed_vec: Vec<(u32, &dyn ToValue)> = Vec::new();
+
+            for (index, item) in log.iter().enumerate() {
+                indexed_vec.push((index as u32, item));
+            }
+            list_store.insert_with_values(Some(0), &indexed_vec);
+        }
+        // Scroll to the first element.
+        if let Some(model) = logger_list.model() {
+            if let Some(iter) = model.iter_first() {
+                let path = model.path(&iter);
+                logger_list.scroll_to_cell(
+                    Some(&path),
+                    None::<&gtk::TreeViewColumn>,
+                    false,
+                    0.0,
+                    0.0,
+                );
+            }
+        }
     }
 }

src/ui/message.rs

@@ -2,18 +2,7 @@
 //
 // Copyright 2022 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
 
@@ -64,7 +53,7 @@ pub fn display_message_dialog<F: Fn(Application) + 'static>(
 #[allow(dead_code)]
 pub fn display_error_dialog(fatal: bool, message: &str) {
     display_message_dialog(
-        &format!("Error: {}", message),
+        &format!("Error: {message}"),
         gtk::MessageType::Error,
         move |app| {
             if fatal {

src/ui/mod.rs

@@ -1,21 +1,11 @@
-// ui/mod.rs
+// mod.rs
 //
 // Copyright 2022 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
+
 pub mod about;
 pub mod dialog;
 pub mod elements;

src/ui/preferences.rs

@@ -2,41 +2,37 @@
 //
 // Copyright 2022 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 crate::app::GPSApp;
 
+use crate::logger;
 use crate::settings;
 use crate::ui as GPSUI;
 use gtk::glib;
 use gtk::prelude::*;
 
+fn add_settings_widget(grid: &gtk::Grid, label_name: &str, widget: &gtk::Widget, row: i32) {
+    let label = gtk::Label::builder()
+        .label(label_name)
+        .hexpand(true)
+        .halign(gtk::Align::Start)
+        .margin_start(4)
+        .build();
+
+    grid.attach(&label, 0, row, 1, 1);
+    grid.attach(widget, 1, row, 1, 1);
+}
+
 pub fn display_settings(app: &GPSApp) {
     let grid = gtk::Grid::new();
     grid.set_column_spacing(4);
     grid.set_row_spacing(4);
     grid.set_margin_bottom(12);
-
-    let label = gtk::Label::builder()
-        .label("Use gtk4paintablesink element for video rendering:")
-        .hexpand(true)
-        .halign(gtk::Align::Start)
-        .margin_start(4)
-        .build();
-    let widget = gtk::CheckButton::new();
     let settings = settings::Settings::load_settings();
+    let widget = gtk::CheckButton::new();
     widget.set_active(
         settings
             .preferences
@@ -51,12 +47,51 @@ pub fn display_settings(app: &GPSApp) {
         settings::Settings::save_settings(&settings);
     }));
 
-    grid.attach(&label, 0, 0, 1, 1);
-    grid.attach(&widget, 1, 0, 1, 1);
+    let widget = widget
+        .dynamic_cast::<gtk::Widget>()
+        .expect("Should be a widget");
+    add_settings_widget(
+        &grid,
+        "Use gtk4paintablesink element for video rendering:",
+        &widget,
+        0,
+    );
+
+    let widget = gtk::SpinButton::with_range(0.0, 5.0, 1.0);
+    widget.set_value(
+        settings
+            .preferences
+            .get("log_level")
+            .unwrap_or(&"0.0".to_string())
+            .parse::<f64>()
+            .expect("Should a f64 value"),
+    );
+    widget.connect_value_changed(glib::clone!(@weak widget => move |c| {
+        let mut settings = settings::Settings::load_settings();
+        settings.preferences.insert("log_level".to_string(), c.value().to_string());
+        logger::set_log_level(logger::LogLevel::from_u32(c.value() as u32));
+        settings::Settings::save_settings(&settings);
+    }));
+
+    let widget = widget
+        .dynamic_cast::<gtk::Widget>()
+        .expect("Should be a widget");
+    add_settings_widget(&grid, "Log level", &widget, 1);
 
     let dialog = GPSUI::dialog::create_dialog("Preferences", app, &grid, move |_app, dialog| {
         dialog.close();
     });
 
+    let widget = gtk::Entry::new();
+    widget.set_text(settings::Settings::gst_log_level().as_str());
+    widget.connect_changed(glib::clone!(@weak widget => move |c| {
+        let mut settings = settings::Settings::load_settings();
+        settings.preferences.insert("gst_log_level".to_string(), c.text().to_string());
+        settings::Settings::save_settings(&settings);
+    }));
+    let widget = widget
+        .dynamic_cast::<gtk::Widget>()
+        .expect("Should be a widget");
+    add_settings_widget(&grid, "GST Log level", &widget, 2);
     dialog.show();
 }

src/ui/properties.rs

@@ -2,22 +2,14 @@
 //
 // Copyright 2022 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 crate::app::GPSApp;
+use crate::common;
 use crate::gps as GPS;
+use crate::graphbook;
 use crate::logger;
 use crate::ui as GPSUI;
 use crate::{GPS_INFO, GPS_TRACE};
@@ -28,22 +20,6 @@ use std::cell::RefCell;
 use std::collections::HashMap;
 use std::rc::Rc;
 
-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 property_to_widget<F: Fn(String, String) + 'static>(
     app: &GPSApp,
     node_id: u32,
@@ -62,10 +38,12 @@ pub fn property_to_widget<F: Fn(String, String) + 'static>(
             } else if (param.flags() & glib::ParamFlags::READABLE) == glib::ParamFlags::READABLE
                 || (param.flags() & glib::ParamFlags::READWRITE) == glib::ParamFlags::READWRITE
             {
-                if let Ok(value) = GPS::ElementInfo::element_property(element_name, param.name()) {
+                if let Ok(value) =
+                    GPS::ElementInfo::element_property_by_feature_name(element_name, param.name())
+                {
                     check_button.set_active(value.parse::<bool>().unwrap_or(false));
                 }
-            } else if let Some(value) = value_as_str(param.default_value()) {
+            } else if let Some(value) = common::value_as_str(param.default_value()) {
                 check_button.set_active(value.parse::<bool>().unwrap_or(false));
             }
             check_button.connect_toggled(glib::clone!(@weak check_button => move |c| {
@@ -79,6 +57,7 @@ pub fn property_to_widget<F: Fn(String, String) + 'static>(
             glib::ParamSpecInt64::static_type(),
             glib::ParamSpecUInt64::static_type(),
             glib::ParamSpecString::static_type(),
+            glib::ParamSpecFloat::static_type(),
         ]
         .contains(&t) =>
         {
@@ -91,10 +70,12 @@ pub fn property_to_widget<F: Fn(String, String) + 'static>(
             } else if (param.flags() & glib::ParamFlags::READABLE) == glib::ParamFlags::READABLE
                 || (param.flags() & glib::ParamFlags::READWRITE) == glib::ParamFlags::READWRITE
             {
-                if let Ok(value) = GPS::ElementInfo::element_property(element_name, param.name()) {
+                if let Ok(value) =
+                    GPS::ElementInfo::element_property_by_feature_name(element_name, param.name())
+                {
                     entry.set_text(&value);
                 }
-            } else if let Some(value) = value_as_str(param.default_value()) {
+            } else if let Some(value) = common::value_as_str(param.default_value()) {
                 entry.set_text(&value);
             }
 
@@ -133,7 +114,7 @@ pub fn property_to_widget<F: Fn(String, String) + 'static>(
                 let param = param
                     .clone()
                     .downcast::<glib::ParamSpecFlags>()
-                    .expect("Should be a ParamSpecEnum");
+                    .expect("Should be a ParamSpecFlags");
                 let flags = param.flags_class();
                 for value in flags.values() {
                     combo.append_text(&format!(
@@ -150,7 +131,9 @@ pub fn property_to_widget<F: Fn(String, String) + 'static>(
             } else if (param.flags() & glib::ParamFlags::READABLE) == glib::ParamFlags::READABLE
                 || (param.flags() & glib::ParamFlags::READWRITE) == glib::ParamFlags::READWRITE
             {
-                if let Ok(value) = GPS::ElementInfo::element_property(element_name, param.name()) {
+                if let Ok(value) =
+                    GPS::ElementInfo::element_property_by_feature_name(element_name, param.name())
+                {
                     combo.set_active(Some(value.parse::<u32>().unwrap_or(0) + 1));
                 }
             }
@@ -181,7 +164,7 @@ pub fn property_to_widget<F: Fn(String, String) + 'static>(
 pub fn display_plugin_properties(app: &GPSApp, element_name: &str, node_id: u32) {
     let update_properties: Rc<RefCell<HashMap<String, String>>> =
         Rc::new(RefCell::new(HashMap::new()));
-    let properties = GPS::ElementInfo::element_properties(element_name).unwrap();
+    let properties = GPS::ElementInfo::element_properties_by_feature_name(element_name).unwrap();
 
     let grid = gtk::Grid::new();
     grid.set_column_spacing(4);
@@ -205,10 +188,12 @@ pub fn display_plugin_properties(app: &GPSApp, element_name: &str, node_id: u32)
             }),
         );
         if let Some(widget) = widget {
-            let label = gtk::Label::new(Some(name));
-            label.set_hexpand(true);
-            label.set_halign(gtk::Align::Start);
-            label.set_margin_start(4);
+            let label = gtk::Label::builder()
+                .label(name)
+                .hexpand(true)
+                .halign(gtk::Align::Start)
+                .margin_start(4)
+                .build();
             grid.attach(&label, 0, i, 1, 1);
             grid.attach(&widget, 1, i, 1, 1);
             i += 1;
@@ -216,7 +201,7 @@ pub fn display_plugin_properties(app: &GPSApp, element_name: &str, node_id: u32)
     }
 
     let dialog = GPSUI::dialog::create_dialog(
-        &format!("{} properties", element_name),
+        &format!("{element_name} properties"),
         app,
         &grid,
         glib::clone!(@strong update_properties => move |app, dialog| {
@@ -246,10 +231,12 @@ pub fn display_pad_properties(
     let mut i = 0;
     let properties = app.pad_properties(node_id, port_id);
     for (name, value) in properties {
-        let property_name = gtk::Label::new(Some(&name));
-        property_name.set_hexpand(true);
-        property_name.set_halign(gtk::Align::Start);
-        property_name.set_margin_start(4);
+        let property_name = gtk::Label::builder()
+            .label(&name)
+            .hexpand(true)
+            .halign(gtk::Align::Start)
+            .margin_start(4)
+            .build();
         let property_value = gtk::Entry::new();
         property_value.set_width_request(150);
         property_value.set_text(&value);
@@ -264,10 +251,12 @@ pub fn display_pad_properties(
     }
 
     // Add a new property  allowing to set pads property.
-    let label = gtk::Label::new(Some("Add a new Property"));
-    label.set_hexpand(true);
-    label.set_halign(gtk::Align::Start);
-    label.set_margin_start(4);
+    let label = gtk::Label::builder()
+        .label("Add a new Property")
+        .hexpand(true)
+        .halign(gtk::Align::Start)
+        .margin_start(4)
+        .build();
 
     let property_name = gtk::Entry::new();
     property_name.set_width_request(150);
@@ -292,7 +281,7 @@ pub fn display_pad_properties(
     // Add all specific properties from the given element
 
     let dialog = GPSUI::dialog::create_dialog(
-        &format!("{} properties from {}", port_name, element_name),
+        &format!("{port_name} properties from {element_name}"),
         app,
         &grid,
         glib::clone!(@strong update_properties => move |app, dialog| {
@@ -313,10 +302,13 @@ pub fn display_pipeline_details(app: &GPSApp) {
     grid.set_row_spacing(4);
     grid.set_margin_bottom(12);
 
-    if let Some(elements) = app.player.borrow().pipeline_elements() {
+    if let Some(elements) = graphbook::current_graphtab(app)
+        .player()
+        .pipeline_elements()
+    {
         let elements_list = elements.join(" ");
         let label = gtk::Label::builder()
-            .label(&format!("{} elements:", elements.len()))
+            .label(format!("{} elements:", elements.len()))
             .hexpand(true)
             .halign(gtk::Align::Start)
             .valign(gtk::Align::Start)
@@ -324,7 +316,7 @@ pub fn display_pipeline_details(app: &GPSApp) {
             .build();
 
         let value = gtk::Label::builder()
-            .label(&elements_list)
+            .label(elements_list)
             .hexpand(true)
             .halign(gtk::Align::Start)
             .margin_start(4)

src/ui/treeview.rs

@@ -2,25 +2,21 @@
 //
 // Copyright 2022 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 crate::app::GPSApp;
-use gtk::prelude::TreeViewExt;
+use gtk::prelude::{Cast, CellLayoutExt, CellRendererTextExt, TreeViewExt};
 use gtk::{CellRendererText, TreeView, TreeViewColumn};
 
-pub fn add_column_to_treeview(app: &GPSApp, tree_name: &str, column_name: &str, column_n: i32) {
+pub fn add_column_to_treeview(
+    app: &GPSApp,
+    tree_name: &str,
+    column_name: &str,
+    column_n: i32,
+    wrappable: bool,
+) {
     let treeview: TreeView = app
         .builder
         .object(tree_name)
@@ -31,5 +27,11 @@ pub fn add_column_to_treeview(app: &GPSApp, tree_name: &str, column_name: &str,
     // Association of the view's column with the model's `id` column.
     column.add_attribute(&cell, "text", column_n);
     column.set_title(column_name);
+
+    if wrappable {
+        column.set_sizing(gtk::TreeViewColumnSizing::Autosize);
+        let cell: gtk::CellRendererText = column.cells()[0].clone().downcast().unwrap();
+        cell.set_wrap_width(1024);
+    }
     treeview.append_column(&column);
 }

subprojects/gstreamer-1.0.wrap

@@ -0,0 +1,8 @@
+[wrap-git]
+directory=gstreamer-1.0
+url=https://gitlab.freedesktop.org/gstreamer/gstreamer.git
+push-url=git@gitlab.freedesktop.org:gstreamer/gstreamer.git
+revision=1.22
+
+[provide]
+dependency_names = gstreamer-1.0, gstreamer-base-1.0, gstreamer-sys-1.0, gstreamer-plugins-bad-1.0, gstreamer-video-1.0, gstreamer-player-1.0

subprojects/gtk.wrap

@@ -0,0 +1,9 @@
+[wrap-git]
+directory=gtk
+url=https://gitlab.gnome.org/GNOME/gtk.git
+push-url=ssh://git@gitlab.gnome.org:GNOME/gtk.git
+revision=4.8.2
+depth=1
+
+[provide]
+dependency_names=gtk4