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application: Subclass AdwApplication

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AdwApplication automatically handles styling for us.
This commit is contained in:
Christopher Davis 2021-09-23 02:51:46 -07:00
parent 1687411536
commit 0c62962d06
3 changed files with 7 additions and 8 deletions
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2
data/gnome_image_viewer.gresource.xml
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@ -4,6 +4,6 @@
<file compressed="true" preprocess="xml-stripblanks">gtk/help_overlay.ui</file>
<file compressed="true" preprocess="xml-stripblanks">gtk/window.ui</file>
<file compressed="true" preprocess="xml-stripblanks">gtk/image_view.ui</file>
<file>image-viewer.css</file>
<file>style.css</file>
</gresource>
</gresources>

0
data/image-viewer.css → data/style.css
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13
src/application.rs
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@ -23,6 +23,7 @@ use glib::subclass::prelude::*;
use gtk::prelude::*;
use gtk::subclass::prelude::*;
use gtk_macros::*;
use libadwaita::subclass::prelude::*;
use crate::config;
use crate::window::IvWindow;
@ -44,7 +45,7 @@ mod imp {
impl ObjectSubclass for IvApplication {
const NAME: &'static str = "IvApplication";
type Type = super::IvApplication;
type ParentType = gtk::Application;
type ParentType = libadwaita::Application;
// Initialize with default values
fn new() -> Self {
@ -60,11 +61,7 @@ mod imp {
fn constructed(&self, obj: &Self::Type) {
self.parent_constructed(obj);
// Set up the CSS and force dark theme
let display = gdk::Display::default().unwrap();
let provider = gtk::CssProvider::new();
provider.load_from_resource("/org/gnome/ImageViewer/image-viewer.css");
gtk::StyleContext::add_provider_for_display(&display, &provider, 600);
// Force dark theme
self.gtk_settings
.set_gtk_application_prefer_dark_theme(true);
@ -93,6 +90,7 @@ mod imp {
// This is empty, but we still need to provide an
// empty implementation for each type we subclass.
impl GtkApplicationImpl for IvApplication {}
impl AdwApplicationImpl for IvApplication {}
}
// Creates a wrapper struct that inherits the functions
@ -101,7 +99,7 @@ mod imp {
// IvApplication without casting.
glib::wrapper! {
pub struct IvApplication(ObjectSubclass<imp::IvApplication>)
@extends gio::Application, gtk::Application,
@extends gio::Application, gtk::Application, libadwaita::Application,
@implements gio::ActionGroup, gio::ActionMap;
}
@ -112,6 +110,7 @@ impl IvApplication {
glib::Object::new(&[
("application-id", &config::APP_ID.to_string()),
("flags", &gio::ApplicationFlags::HANDLES_OPEN),
("resource-base-path", &"/org/gnome/ImageViewer/".to_string()),
])
.unwrap()
}