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image/rendering: Use scale instead of scale-factor

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`GdkSurface:scale` supports fractional scaling available as
"scale-monitor-framebuffer" on Mutter. Use this value everywhere
instead of the integer scale-factor

Closing #182
This commit is contained in:
Sophie Herold 2023-12-06 22:44:18 +01:00
parent 2ef5032627
commit 057ca6a3d0
7 changed files with 119 additions and 82 deletions
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29
src/widgets/image.rs
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@ -53,6 +53,7 @@ use adw::subclass::prelude::*;
use arc_swap::ArcSwap;
use futures::prelude::*;
use glib::subclass::Signal;
use glib::{Properties, SignalGroup};
use once_cell::sync::Lazy;
use std::cell::{Cell, OnceCell, RefCell};
@ -119,7 +120,6 @@ const THUMBNAIL_SIZE: f32 = 128.;
mod imp {
use super::*;
use glib::Properties;
#[derive(Debug, Default, Properties)]
#[properties(wrapper_type = super::LpImage)]
@ -215,7 +215,8 @@ mod imp {
pub(super) locked_gestured: Cell<Option<Gesture>>,
pub(super) widget_dimensions: Cell<(i32, i32)>,
pub(super) scale_factor: Cell<i32>,
pub(super) scaling: Cell<f64>,
pub(super) surface_signals: OnceCell<SignalGroup>,
}
#[glib::object_subclass]
@ -256,13 +257,29 @@ mod imp {
self.zoom.set(1.);
self.zoom_target.set(1.);
self.best_fit.set(true);
self.scale_factor.set(obj.scale_factor());
self.scaling.set(obj.scaling());
self.connect_input_handling();
obj.connect_scale_factor_notify(|obj| {
obj.queue_resize();
});
let surface_signals = self
.surface_signals
.get_or_init(SignalGroup::new::<gdk::Surface>);
surface_signals.connect_notify_local(
Some("scale"),
glib::clone!(@weak obj => move |_, _| {
log::debug!("Scale changed signal");
obj.queue_resize();
}),
);
obj.connect_realize(glib::clone!(@weak surface_signals => move |obj| {
surface_signals.set_target(obj.native().map(|x| x.surface()).as_ref());
}));
obj.connect_unrealize(glib::clone!(@weak surface_signals => move |_| {
surface_signals.set_target(gdk::Surface::NONE);
}));
adw::StyleManager::default().connect_dark_notify(glib::clone!(@weak obj => move |_| {
glib::spawn_future_local(async move {