examples: Add example for About Dialog

Author: felinira

examples/Cargo.toml

@@ -32,10 +32,16 @@ default = []
 femtovg-support = ["epoxy", "femtovg", "glow", "libloading"]
 glium-support = ["glium", "epoxy", "libloading"]
 tokio = ["dep:tokio", "async-channel", "reqwest", "serde"]
+v4_6 = ["gtk/v4_6"]
 v4_10 = ["gtk/v4_10"]
 v4_12 = ["gtk/v4_12"]
 v4_14 = ["gtk/v4_14"]
 
+[[bin]]
+name = "about_dialog"
+path = "about_dialog/main.rs"
+required-features = ["v4_6"]
+
 [[bin]]
 name = "basics"
 path = "basics/main.rs"

examples/about_dialog/README.md

@@ -0,0 +1,5 @@
+# Basics
+
+This example demonstrates the usage of `AboutDialog`.
+
+![Screenshot](screenshot.png)

examples/about_dialog/gtk-rs.svg

@@ -0,0 +1,49 @@
+use gtk::gdk;
+use gtk::glib;
+use gtk::prelude::*;
+
+static LOGO_SVG: &[u8] = include_bytes!("gtk-rs.svg");
+
+fn main() {
+    let app = gtk::Application::builder()
+        .application_id("com.github.gtk-rs.examples.basic")
+        .build();
+
+    app.connect_activate(|app| {
+        let button = gtk::Button::builder()
+            .label("Show About Dialog")
+            .margin_top(24)
+            .margin_bottom(24)
+            .margin_start(24)
+            .margin_end(24)
+            .build();
+
+        let window = gtk::ApplicationWindow::builder()
+            .application(app)
+            .title("Example")
+            .child(&button)
+            .build();
+
+        let bytes = glib::Bytes::from_static(LOGO_SVG);
+        let logo = gdk::Texture::from_bytes(&bytes).expect("gtk-rs.svg to load");
+
+        button.connect_clicked(glib::clone!(@weak window => move |_| {
+            let dialog = gtk::AboutDialog::builder()
+                .transient_for(&window)
+                .modal(true)
+                .program_name("About Dialog Example")
+                .version("0.1.0")
+                .website("https://gtk-rs.org")
+                .license_type(gtk::License::MitX11)
+                .authors(["Author 1", "Author 2"])
+                .logo(&logo)
+                .build();
+
+            dialog.present();
+        }));
+
+        window.present();
+    });
+
+    app.run();
+}