Add a test program for gnome icons

Cargo.lock

@@ -945,6 +945,7 @@ dependencies = [
  "dimensioned 0.8.0",
  "emseries",
  "ft-core",
+ "gdk4",
  "gio",
  "glib",
  "glib-build-tools 0.18.0",
@@ -1806,6 +1807,16 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "icon-test"
+version = "0.1.0"
+dependencies = [
+ "gio",
+ "glib",
+ "gtk4",
+ "libadwaita",
+]
+
 [[package]]
 name = "idna"
 version = "0.1.5"

Cargo.toml

@@ -16,6 +16,7 @@ members = [
     "geo-types",
     "gm-control-panel",
     "hex-grid",
+    "icon-test",
     "ifc",
     "kifu/core",
     "kifu/gtk",

flake.nix

@@ -32,6 +32,7 @@
             pkgs.gst_all_1.gstreamer
             pkgs.gtk4
             pkgs.libadwaita
+            pkgs.librsvg
             pkgs.nodejs
             pkgs.openssl
             pkgs.pipewire

icon-test/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "icon-test"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+adw             = { version = "0.5", package = "libadwaita", features = [ "v1_4" ] }
+gio             = { version = "0.18" }
+glib            = { version = "0.18" }
+gtk             = { version = "0.7", package = "gtk4", features = [ "v4_10" ] }

icon-test/src/main.rs

@@ -0,0 +1,38 @@
+use adw::prelude::*;
+
+fn main() {
+    let adw_app = adw::Application::builder().build();
+
+    adw_app.connect_activate(move |adw_app| {
+        let window = gtk::ApplicationWindow::builder()
+            .application(adw_app)
+            .width_request(400)
+            .height_request(400)
+            .build();
+
+        let sunrise_button = gtk::Button::builder()
+            .icon_name("daytime-sunrise-symbolic")
+            .width_request(64)
+            .height_request(64)
+            .build();
+
+        let walking_button = gtk::Button::builder()
+            .icon_name("walking2-symbolic")
+            .width_request(64)
+            .height_request(64)
+            .build();
+
+        let layout = gtk::Box::builder()
+            .orientation(gtk::Orientation::Horizontal)
+            .valign(gtk::Align::Start)
+            .build();
+        layout.append(&sunrise_button);
+        layout.append(&walking_button);
+
+        window.set_child(Some(&layout));
+        window.present();
+    });
+
+    let args: Vec<String> = std::env::args().collect();
+    ApplicationExtManual::run_with_args(&adw_app, &args);
+}