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graphview: port to gtk4 version 0.4.1

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This commit is contained in:
Stéphane Cerveau 2022-01-17 14:39:36 +01:00
parent 21e5e4b4cb
commit 2548040463
1 changed files with 29 additions and 39 deletions
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68
src/graphmanager/graphview.rs
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@ -25,14 +25,13 @@ use xml::writer::EmitterConfig;
use xml::writer::XmlEvent as XMLWEvent;
use super::{link::Link, node::Node, node::NodeType, port::Port, port::PortDirection};
use glib::subclass::Signal;
use once_cell::sync::Lazy;
use std::fs::File;
use std::io::BufReader;
use gtk::{
gdk::{BUTTON_PRIMARY, BUTTON_SECONDARY},
glib::{self, clone},
glib::{self, clone, subclass::Signal},
graphene, gsk,
prelude::*,
subclass::prelude::*,
@ -90,7 +89,6 @@ mod imp {
let mut drag_state = drag_state.borrow_mut();
let widget = drag_controller
.widget()
.expect("drag-begin event has no widget")
.dynamic_cast::<Self::Type>()
.expect("drag-begin event is not on the GraphView");
// pick() should at least return the widget itself.
@ -117,7 +115,6 @@ mod imp {
clone!(@strong drag_state => move |drag_controller, x, y| {
let widget = drag_controller
.widget()
.expect("drag-update event has no widget")
.dynamic_cast::<Self::Type>()
.expect("drag-update event is not on the GraphView");
let drag_state = drag_state.borrow();
@ -131,7 +128,6 @@ mod imp {
clone!(@strong drag_state => move |drag_controller, _x, _y| {
let widget = drag_controller
.widget()
.expect("drag-end event has no widget")
.dynamic_cast::<Self::Type>()
.expect("drag-end event is not on the GraphView");
widget.graph_updated();
@ -146,25 +142,25 @@ mod imp {
gesture.connect_pressed(
clone!(@weak obj, @weak drag_controller => move |gesture, _n_press, x, y| {
if gesture.current_button() == BUTTON_SECONDARY {
let widget = drag_controller.widget().expect("click event has no widget")
let widget = drag_controller.widget()
.dynamic_cast::<Self::Type>()
.expect("click event is not on the GraphView");
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");
obj.emit_by_name("port-right-clicked", &[&port.id(), &node.id(), &graphene::Point::new(x as f32,y as f32)]).expect("unable to send signal");
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");
widget.unselect_all();
node.set_selected(true);
obj.emit_by_name("node-right-clicked", &[&node.id(), &graphene::Point::new(x as f32,y as f32)]).expect("unable to send signal");
obj.emit_by_name::<()>("node-right-clicked", &[&node.id(), &graphene::Point::new(x as f32,y as f32)]);
} else {
widget.unselect_all();
obj.emit_by_name("graph-right-clicked", &[&graphene::Point::new(x as f32,y as f32)]).expect("unable to send signal");
obj.emit_by_name::<()>("graph-right-clicked", &[&graphene::Point::new(x as f32,y as f32)]);
}
} else if gesture.current_button() == BUTTON_PRIMARY {
let widget = drag_controller.widget().expect("click event has no widget")
let widget = drag_controller.widget()
.dynamic_cast::<Self::Type>()
.expect("click event is not on the GraphView");
let target = widget.pick(x, y, gtk::PickFlags::DEFAULT).expect("port pick() did not return a widget");
@ -188,7 +184,6 @@ mod imp {
if gesture.current_button() == BUTTON_PRIMARY {
let widget = drag_controller
.widget()
.expect("click event has no widget")
.dynamic_cast::<Self::Type>()
.expect("click event is not on the GraphView");
if let Some(target) = widget.pick(x, y, gtk::PickFlags::DEFAULT) {
@ -292,14 +287,12 @@ mod imp {
.for_each(|node| self.instance().snapshot_child(node, snapshot));
// Draw all links
let link_cr = snapshot
.append_cairo(&graphene::Rect::new(
0.0,
0.0,
alloc.width as f32,
alloc.height as f32,
))
.expect("Failed to get cairo context");
let link_cr = snapshot.append_cairo(&graphene::Rect::new(
0.0,
0.0,
alloc.width() as f32,
alloc.height() as f32,
));
for link in self.links.borrow().values() {
if let Some((from_x, from_y, to_x, to_y)) = self.link_coordinates(link) {
@ -342,14 +335,13 @@ mod imp {
let from_node = nodes.get(&link.node_from)?;
let from_port = from_node.port(&link.port_from)?;
let gtk::Allocation {
x: mut fx,
y: mut fy,
width: fw,
height: fh,
} = from_port.allocation();
let gtk::Allocation { x: fnx, y: fny, .. } = from_node.allocation();
let (mut fx, mut fy, fw, fh) = (
from_port.allocation().x(),
from_port.allocation().y(),
from_port.allocation().width(),
from_port.allocation().height(),
);
let (fnx, fny) = (from_node.allocation().x(), from_node.allocation().y());
if let Some((port_x, port_y)) = from_port.translate_coordinates(from_node, 0.0, 0.0) {
fx += fnx + fw + port_x as i32;
@ -358,15 +350,15 @@ mod imp {
let to_node = nodes.get(&link.node_to)?;
let to_port = to_node.port(&link.port_to)?;
let gtk::Allocation {
x: mut tx,
y: mut ty,
width: _tw,
height: th,
..
} = to_port.allocation();
let gtk::Allocation { x: tnx, y: tny, .. } = to_node.allocation();
let (mut tx, mut ty, th) = (
to_port.allocation().x(),
to_port.allocation().y(),
to_port.allocation().height(),
);
let (tnx, tny) = (to_node.allocation().x(), to_node.allocation().y());
if let Some((port_x, port_y)) = to_port.translate_coordinates(to_node, 0.0, 0.0) {
tx += tnx + port_x as i32;
ty = tny + (th / 2) + port_y as i32;
@ -401,8 +393,7 @@ impl GraphView {
fn graph_updated(&self) {
let private = imp::GraphView::from_instance(self);
self.emit_by_name("graph-updated", &[&private.id.get()])
.expect("unable to send signal");
self.emit_by_name::<()>("graph-updated", &[&private.id.get()]);
}
pub fn add_node_with_port(&self, id: u32, node: Node, input: u32, output: u32) {
@ -638,7 +629,7 @@ impl GraphView {
.expect("Failed to cast to FixedLayout");
let node = layout_manager
.layout_child(node)?
.layout_child(node)
.dynamic_cast::<gtk::FixedLayoutChild>()
.expect("Could not cast to FixedLayoutChild");
let transform = node
@ -666,7 +657,6 @@ impl GraphView {
layout_manager
.layout_child(widget)
.expect("Could not get layout child")
.dynamic_cast::<gtk::FixedLayoutChild>()
.expect("Could not cast to FixedLayoutChild")
.set_transform(&transform);