add swifty gtk4 template (#4)

Author: aeldemery

templates/meson.build

@@ -1,3 +1,5 @@
 install_subdir('gtk', install_dir: templates_dir)
 install_subdir('lib', install_dir: templates_dir)
 install_subdir('new', install_dir: templates_dir)
+
+install_subdir('swifty-gtk4', install_dir: templates_dir)

templates/swifty-gtk4/README.md.in

@@ -0,0 +1,11 @@
+# ${PROJECT_NAME}
+
+A shiny new GTK app.
+
+## Build instructions:
+
+```Bash
+$ meson build
+$ ninja -C build
+$ build/${PROGRAM_NAME}
+```

templates/swifty-gtk4/Sources/Main.vala.in

@@ -0,0 +1,26 @@
+public class ${NAMESPACE}.App : Gtk.Application {
+    // Member variables
+
+    // Constructor
+    public App () {
+        Object (application_id: "${APP_ID}",
+                flags : GLib.ApplicationFlags.FLAGS_NONE
+        );
+    }
+
+    protected override void activate () {
+        var win = this.get_active_window ();
+        if (win == null) {
+            win = new MainWindow (this);
+        }
+        win.present ();
+    }
+
+    protected override void open (GLib.File[] files, string hint) {
+    }
+}
+
+int main (string[] args) {
+    var my_app = new ${NAMESPACE}.App ();
+    return my_app.run (args);
+}

templates/swifty-gtk4/Sources/MainWindow.vala.in

@@ -0,0 +1,29 @@
+public class ${NAMESPACE}.MainWindow : Gtk.ApplicationWindow {
+    // GLib.ListStore clocks_list_store;
+    public MainWindow (Gtk.Application app) {
+        Object (application: app);
+
+        this.default_height = 400;
+        this.default_width = 600;
+
+        var header = new Gtk.HeaderBar ();
+        this.set_titlebar (header);
+
+        var label = new Gtk.Label ("Hello World!");
+        label.hexpand = label.vexpand = true;
+        
+        var button = new Gtk.Button.with_label ("Click Me!");
+
+        button.clicked.connect (() => {
+          var str = label.label;
+          var temp_str = str.reverse ();
+          label.label = temp_str;
+        });
+
+        var box = new Gtk.Box (Gtk.Orientation.VERTICAL, 10);
+        box.append (label);
+        box.append (button);
+
+        this.child = box;
+    }
+}

templates/swifty-gtk4/Sources/meson.build.in

@@ -0,0 +1,17 @@
+sources = files(
+  'Main.vala',
+  'MainWindow.vala',
+)
+
+dependencies = [
+  dependency('glib-2.0'),
+  dependency('gobject-2.0'),
+  dependency('gtk4'),
+]
+
+executable(
+  '${PROGRAM_NAME}',
+  sources,
+  dependencies: dependencies,
+  install: true
+)

templates/swifty-gtk4/meson.build.in

@@ -0,0 +1,9 @@
+project(
+  '${PROJECT_NAME}', 
+  'vala', 'c',
+  version: '${PROJECT_VERSION}'
+)
+
+add_project_arguments(['--enable-experimental'], language: 'vala')
+
+subdir('Sources')

templates/swifty-gtk4/template.json

@@ -0,0 +1,27 @@
+{
+  "description": "an opinionated Gtk4 application template",
+  "variables": {
+    "PROGRAM_NAME": {
+      "summary": "the name of the program",
+      "default": "/${PROJECT_NAME}/\\w+/\\L\\0\\E/\\W+/-/",
+      "pattern": "^[[:word:]-]+$"
+    },
+    "NAMESPACE": {
+      "summary": "the namespace to use for the application",
+      "default": "Gtk4App",
+      "pattern": "^[A-Za-z_]\\w*$"
+    },
+    "APP_ID": {
+      "summary": "the application ID",
+      "default": "com.github.author.example",
+      "pattern": "^\\w+(\\.\\w+)*$"
+    }
+  },
+  "inputs": [
+    "Sources/Main.vala.in",
+    "Sources/MainWindow.vala.in",
+    "Sources/meson.build.in",
+    "meson.build.in",
+    "README.md.in"
+  ]
+}