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ui: Port to libadwaita

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This ports the application to libadwaita, enabling us to use the libadwaita stylesheet and
widgets to better implement the Gnome Human Interface Guidelines.
This commit is contained in:
Tom A. Wagner
2023-07-20 10:33:41 +02:00
parent 6fd3691733
commit af4051c3c2
16 changed files with 185 additions and 122 deletions
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82
src/ui/graph/graph_view.rs
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@@ -14,11 +14,14 @@
//
// SPDX-License-Identifier: GPL-3.0-only
use gtk::{
cairo, gio,
use adw::{
gio,
glib::{self, clone},
graphene::{self, Point},
gsk,
gtk::{
self, cairo,
graphene::{self, Point},
gsk,
},
prelude::*,
subclass::prelude::*,
};
@@ -36,11 +39,7 @@ mod imp {
use std::cell::{Cell, RefCell};
use std::collections::{HashMap, HashSet};
use gtk::{
gdk::{self, RGBA},
graphene::Rect,
gsk::ColorStop,
};
use adw::gtk::gdk::{self};
use log::warn;
use once_cell::sync::Lazy;
use pipewire::spa::format::MediaType;
@@ -115,7 +114,7 @@ mod imp {
#[glib::object_subclass]
impl ObjectSubclass for GraphView {
const NAME: &'static str = "GraphView";
const NAME: &'static str = "HelvumGraphView";
type Type = super::GraphView;
type ParentType = gtk::Widget;
type Interfaces = (gtk::Scrollable,);
@@ -224,7 +223,7 @@ mod imp {
let widget = &*self.obj();
let alloc = widget.allocation();
self.snapshot_background(widget, snapshot);
// self.snapshot_background(widget, snapshot);
// Draw all visible children
self.nodes
@@ -462,67 +461,6 @@ mod imp {
self.obj().add_controller(zoom_gesture);
}
fn snapshot_background(&self, widget: &super::GraphView, snapshot: &gtk::Snapshot) {
// Grid size and line width during neutral zoom (factor 1.0).
const NORMAL_GRID_SIZE: f32 = 20.0;
const NORMAL_GRID_LINE_WIDTH: f32 = 1.0;
let zoom_factor = self.zoom_factor.get();
let grid_size = NORMAL_GRID_SIZE * zoom_factor as f32;
let grid_line_width = NORMAL_GRID_LINE_WIDTH * zoom_factor as f32;
let alloc = widget.allocation();
// We need to offset the lines between 0 and (excluding) `grid_size` so the grid moves with
// the rest of the view when scrolling.
// The offset is rounded so the grid is always aligned to a row of pixels.
let hadj = self
.hadjustment
.borrow()
.as_ref()
.map(|hadjustment| hadjustment.value())
.unwrap_or(0.0);
let hoffset = (grid_size - (hadj as f32 % grid_size)) % grid_size;
let vadj = self
.vadjustment
.borrow()
.as_ref()
.map(|vadjustment| vadjustment.value())
.unwrap_or(0.0);
let voffset = (grid_size - (vadj as f32 % grid_size)) % grid_size;
snapshot.push_repeat(
&Rect::new(0.0, 0.0, alloc.width() as f32, alloc.height() as f32),
Some(&Rect::new(0.0, voffset, alloc.width() as f32, grid_size)),
);
let grid_color = RGBA::new(0.137, 0.137, 0.137, 1.0);
snapshot.append_linear_gradient(
&Rect::new(0.0, voffset, alloc.width() as f32, grid_line_width),
&Point::new(0.0, 0.0),
&Point::new(alloc.width() as f32, 0.0),
&[
ColorStop::new(0.0, grid_color),
ColorStop::new(1.0, grid_color),
],
);
snapshot.pop();
snapshot.push_repeat(
&Rect::new(0.0, 0.0, alloc.width() as f32, alloc.height() as f32),
Some(&Rect::new(hoffset, 0.0, grid_size, alloc.height() as f32)),
);
snapshot.append_linear_gradient(
&Rect::new(hoffset, 0.0, grid_line_width, alloc.height() as f32),
&Point::new(0.0, 0.0),
&Point::new(0.0, alloc.height() as f32),
&[
ColorStop::new(0.0, grid_color),
ColorStop::new(1.0, grid_color),
],
);
snapshot.pop();
}
fn draw_link(
&self,
link_cr: &cairo::Context,