[gnome-devel-docs/wip/dxhackfest2013] platform-demos: add fontchooserwidget.js

[Meg Ford (Margaret) <megford src gnome org>]

commit 0add60b833227df042920253637a690080fb9f87
Author: Meg Ford <megford gnome org>
Date:   Thu Feb 21 21:21:30 2013 -0600

    platform-demos: add fontchooserwidget.js

 platform-demos/C/fontchooserwidget.js |   62 +++++++++++++++++++++++++++++++++
 1 files changed, 62 insertions(+), 0 deletions(-)
---
diff --git a/platform-demos/C/fontchooserwidget.js b/platform-demos/C/fontchooserwidget.js
new file mode 100644
index 0000000..4608a57
--- /dev/null
+++ b/platform-demos/C/fontchooserwidget.js
@@ -0,0 +1,62 @@
+//!/usr/bin/gjs
+
+const Gtk = imports.gi.Gtk;
+const Lang = imports.lang;
+
+const FontChooserWidgetExample = new Lang.Class ({
+    Name: 'Font Chooser Widget Example',
+
+    // Create the application itthis
+    _init: function () {
+        this.application = new Gtk.Application({ application_id: 'org.example.fontchooserwidget' });
+
+        // Connect 'activate' and 'startup' signals to the callback functions
+        this.application.connect('activate', Lang.bind(this, this._onActivate));
+        this.application.connect('startup', Lang.bind(this, this._onStartup));
+    },
+
+                                                                                                             
                                                                                                              
                                                                                                              
                                                                                                              
                                                                                                              
                                                                                                              
                                                                                                              
       
+    // Callback function for 'activate' signal presents windows when active
+    _onActivate: function() {
+        this.window.present();
+    },
+
+    // Callback function for 'startup' signal builds the UI
+    _onStartup: function() {
+        this._buildUI ();
+    },
+
+    // Build the application's UI
+    _buildUI: function() {
+        // Create the application window
+        this.window = new Gtk.ApplicationWindow  ({ application: this.application,
+                                                    window_position: Gtk.WindowPosition.CENTER,
+                                                    title: "Font Chooser Example",
+                                                    default_width: 200,
+                                                    default_height: 200,
+                                                    border_width: 10 });
+
+        this.fontChooser = new Gtk.FontChooserWidget();
+        // a default font
+        this.fontChooser.set_font("Sans");
+        // a text to preview the font
+        this.fontChooser.set_preview_text("This is an example of preview text!");
+
+        // connect signal from the font chooser to the callback function
+        this.fontChooser.connect("notify::font", Lang.bind(this, this._fontCb));
+
+        // add the font chooser to the window
+        this.window.add(this.fontChooser);
+        this.window.show_all();
+   },
+
+     // callback function:
+     _fontCb: function() {
+        // print in the terminal
+        print("You chose the font " + this.fontChooser.get_font());
+    }
+});
+
+// Run the application
+let app = new FontChooserWidgetExample();
+app.application.run (ARGV);