window: Add missing shortcuts

Add shortcuts
- F9 Image properties
- F10 Main menu
- Ctrl +/- for zoom
- Ctrl 0 for best fit
- Ctrl [Shift] R for rotate
- Escape to leave fullscrenen
Updated help overlay accordingly.

src/application.rs

@@ -131,16 +131,39 @@ impl LpApplication {
         self.add_action_entries(actions).unwrap();
 
         self.set_accels_for_action("app.help", &["F1"]);
-        self.set_accels_for_action("app.quit", &["<Primary>Q"]);
-        self.set_accels_for_action("app.new-window", &["<Primary>N"]);
-        self.set_accels_for_action("win.open", &["<Primary>O"]);
-        self.set_accels_for_action("win.print", &["<Primary>P"]);
-        self.set_accels_for_action("win.copy", &["<Primary>C"]);
-        self.set_accels_for_action("win.show-help-overlay", &["<Primary>question"]);
+        self.set_accels_for_action("app.quit", &["<Ctrl>Q"]);
+        self.set_accels_for_action("app.new-window", &["<Ctrl>N"]);
+
+        self.set_accels_for_action("win.open", &["<Ctrl>O"]);
+        self.set_accels_for_action("win.print", &["<Ctrl>P"]);
+        self.set_accels_for_action("win.copy", &["<Ctrl>C"]);
+        self.set_accels_for_action("win.show-help-overlay", &["<Ctrl>question"]);
+        self.set_accels_for_action("win.leave-fullscreen", &["Escape"]);
+        self.set_accels_for_action("win.toggle-properties", &["F9"]);
         self.set_accels_for_action("win.toggle-fullscreen", &["F11"]);
-        self.set_accels_for_action("window.close", &["<Primary>W"]);
+
         self.set_accels_for_action("win.zoom-to(1.0)", &["1"]);
         self.set_accels_for_action("win.zoom-to(2.0)", &["2"]);
+        self.set_accels_for_action("win.zoom-best-fit", &["<Ctrl>0", "0"]);
+        self.set_accels_for_action(
+            "win.zoom-in",
+            &[
+                "<Ctrl>plus",
+                "plus",
+                "<Ctrl>equal",
+                "equal",
+                "<Ctrl>KP_Add",
+                "KP_Add",
+            ],
+        );
+        self.set_accels_for_action(
+            "win.zoom-out",
+            &["<Ctrl>minus", "minus", "<Ctrl>KP_Subtract", "KP_Subtract"],
+        );
+        self.set_accels_for_action("win.rotate(90.0)", &["<Ctrl>R"]);
+        self.set_accels_for_action("win.rotate(-90.0)", &["<Ctrl><Shift>R"]);
+
+        self.set_accels_for_action("window.close", &["<Ctrl>W"]);
     }
 
     pub fn show_about(&self) {

src/widgets/image.rs

@@ -671,7 +671,6 @@ impl LpImage {
                 .build();
 
             animation.connect_done(glib::clone!(@weak self as obj => move |_| {
-                dbg!("animation done");
                 obj.imp().zoom_hscrollbar_transition.set(false);
                 obj.imp().zoom_vscrollbar_transition.set(false);
             }));
@@ -732,6 +731,13 @@ impl LpImage {
         self.zoom_to(zoom);
     }
 
+    /// Zoom to best fit
+    ///
+    /// Used by shortcut
+    pub fn zoom_best_fit(&self) {
+        self.zoom_to(self.zoom_level_best_fit());
+    }
+
     /// Zoom to specific level with animation
     pub fn zoom_to(&self, zoom: f64) {
         log::debug!("Zoom to {zoom:.3}");

src/window.rs

@@ -62,6 +62,8 @@ mod imp {
         #[template_child]
         pub headerbar: TemplateChild<gtk::HeaderBar>,
         #[template_child]
+        pub properties_button: TemplateChild<gtk::ToggleButton>,
+        #[template_child]
         pub menu_button: TemplateChild<gtk::MenuButton>,
         #[template_child]
         pub toast_overlay: TemplateChild<adw::ToastOverlay>,
@@ -106,6 +108,20 @@ mod imp {
                 win.zoom_to(level.unwrap().get().unwrap());
             });
 
+            klass.install_action("win.zoom-best-fit", None, move |win, _, _| {
+                win.zoom_best_fit();
+            });
+
+            klass.install_action("win.leave-fullscreen", None, move |win, _, _| {
+                win.toggle_fullscreen(false);
+            });
+
+            klass.install_action("win.toggle-properties", None, move |win, _, _| {
+                win.imp()
+                    .properties_button
+                    .set_active(!win.imp().properties_button.is_active());
+            });
+
             klass.install_action("win.open", None, move |win, _, _| {
                 win.pick_file();
             });
@@ -284,6 +300,12 @@ impl LpWindow {
         self.imp().image_view.zoom_to(level);
     }
 
+    fn zoom_best_fit(&self) {
+        if let Some(page) = self.imp().image_view.current_page() {
+            page.image().zoom_best_fit();
+        }
+    }
+
     fn pick_file(&self) {
         let chooser = gtk::FileChooserNative::new(
             Some("Open Image"),
@@ -403,6 +425,10 @@ impl LpWindow {
         self.action_set_enabled("win.print", enabled);
         self.action_set_enabled("win.rotate", enabled);
         self.action_set_enabled("win.copy", enabled);
+        self.action_set_enabled("win.zoom-best-fit", enabled);
+        self.action_set_enabled("win.zoom-in", enabled);
+        self.action_set_enabled("win.zoom-to", enabled);
+        self.action_set_enabled("win.toggle-properties", enabled);
     }
 
     // Adapted from https://gitlab.gnome.org/GNOME/eog/-/blob/master/src/eog-window.c:eog_window_obtain_desired_size