[gnome-devel-docs] Vala samples: removed using Gtk statement and adjusted code.

[Tiffany Antopolski <antopolski src gnome org>]

commit 58eb77f0240a29ea2828c9bc9fe764361d047f20
Author: Tiffany Antopolski <tiffany antopolski gmail com>
Date:   Thu Apr 12 10:01:31 2012 -0400

    Vala samples: removed using Gtk statement and adjusted code.

 platform-demos/C/button.vala.page    |   16 ++++++--------
 platform-demos/C/dialog.vala.page    |   16 ++++++--------
 platform-demos/C/samples/button.vala |   12 ++++------
 platform-demos/C/samples/dialog.vala |   31 +++++++++++++--------------
 platform-demos/C/samples/window.vala |   10 +++-----
 platform-demos/C/window.vala.page    |   38 ++++++++++++++++-----------------
 6 files changed, 56 insertions(+), 67 deletions(-)
---
diff --git a/platform-demos/C/button.vala.page b/platform-demos/C/button.vala.page
index 6db1c6d..bffac71 100644
--- a/platform-demos/C/button.vala.page
+++ b/platform-demos/C/button.vala.page
@@ -20,26 +20,24 @@
   <p>A button widget connected to stdout.printf (), and a modal window.</p>
   
       <code mime="text/x-vala" style="numbered"><![CDATA[
-using Gtk;
-
 /*callback for the "clicked" signal.*/
 void button_clicked_cb () {
 	stdout.printf ("You clicked the button!\n");
-        //TODO: add a modal window 
+	//TODO: add a modal window
 }
 
 int main (string[] args) {
 
-	init (ref args);
+	Gtk.init (ref args);
 
-	var window = new Window ();
+	var window = new Gtk.Window ();
 	window.title = "GNOME Button";
 	window.set_default_size (250,50);
 
-	var button = new Button.with_label ("Click Me");
-        window.add (button); //adds the button to the window
+	var button = new Gtk.Button.with_label ("Click Me");
+	window.add (button);
 
-	window.window_position = WindowPosition.CENTER;
+	window.window_position = Gtk.WindowPosition.CENTER;
 
 	/* The "clicked" signal is emitted when the
 	   button is clicked.  The signal is connected to
@@ -51,7 +49,7 @@ int main (string[] args) {
 	  The destroy signal is connected to the
 	  main_quit method, which destroys the window
 	  and exits the program.*/
-	window.destroy.connect (main_quit);
+	window.destroy.connect (Gtk.main_quit);
 
 	window.show_all ();
 
diff --git a/platform-demos/C/dialog.vala.page b/platform-demos/C/dialog.vala.page
index fb40eb7..b9c18de 100644
--- a/platform-demos/C/dialog.vala.page
+++ b/platform-demos/C/dialog.vala.page
@@ -19,24 +19,22 @@
   <p>A dialog with the response signal hooked up to a callback function.</p>
   
       <code mime="text/x-vala" style="numbered"><![CDATA[
-using Gtk;
-
 void on_response (int response_id) {
 
     /*To see the int value of the ResponseType*/
     print ("response is %d\n", response_id);
-    
-    main_quit ();
+
+    Gtk.main_quit ();
 }
 
 int main (string[] args) {
 
-    init (ref args);
+    Gtk.init (ref args);
+
+    var dialog = new Gtk.Dialog.with_buttons ("A Gtk+ Dialog", null, 0, Gtk.Stock.OK, Gtk.ResponseType.OK, null);
+    var content_area = dialog.get_content_area () as Gtk.Container; //TODO: explain this
+    var label = new Gtk.Label ("This demonstrates a dialog with a label");
 
-    var dialog = new Dialog.with_buttons ("A Gtk+ Dialog", null, 0, Stock.OK, ResponseType.OK, null);
-    var content_area = dialog.get_content_area ();
-    var label = new Label ("This demonstrates a dialog with a label");
-    
     content_area.add (label);
     dialog.response.connect (on_response);
     dialog.show_all ();
diff --git a/platform-demos/C/samples/button.vala b/platform-demos/C/samples/button.vala
index 65599fd..060fb72 100644
--- a/platform-demos/C/samples/button.vala
+++ b/platform-demos/C/samples/button.vala
@@ -1,5 +1,3 @@
-using Gtk;
-
 /*callback for the "clicked" signal.*/
 void button_clicked_cb () {
 	stdout.printf ("You clicked the button!\n");
@@ -8,16 +6,16 @@ void button_clicked_cb () {
 
 int main (string[] args) {
 
-	init (ref args);
+	Gtk.init (ref args);
 
-	var window = new Window ();
+	var window = new Gtk.Window ();
 	window.title = "GNOME Button";
 	window.set_default_size (250,50);
 
-	var button = new Button.with_label ("Click Me");
+	var button = new Gtk.Button.with_label ("Click Me");
 	window.add (button);
 
-	window.window_position = WindowPosition.CENTER;
+	window.window_position = Gtk.WindowPosition.CENTER;
 
 	/* The "clicked" signal is emitted when the
 	   button is clicked.  The signal is connected to
@@ -29,7 +27,7 @@ int main (string[] args) {
 	  The destroy signal is connected to the
 	  main_quit method, which destroys the window
 	  and exits the program.*/
-	window.destroy.connect (main_quit);
+	window.destroy.connect (Gtk.main_quit);
 
 	window.show_all ();
 
diff --git a/platform-demos/C/samples/dialog.vala b/platform-demos/C/samples/dialog.vala
index 09dae91..a9dc5fb 100644
--- a/platform-demos/C/samples/dialog.vala
+++ b/platform-demos/C/samples/dialog.vala
@@ -1,24 +1,23 @@
-using Gtk;
-
 void on_response (int response_id) {
 
-	/*To see the int value of the ResponseType*/
-	print ("response is %d\n", response_id);
-	
-	main_quit ();
+    /*To see the int value of the ResponseType*/
+    print ("response is %d\n", response_id);
+    
+    Gtk.main_quit ();
 }
+
 int main (string[] args) {
 
-	init (ref args);
+    Gtk.init (ref args);
 
-	var dialog = new Dialog.with_buttons ("A Gtk+ Dialog", null, 0, Stock.OK, ResponseType.OK, null);
-	var content_area = dialog.get_content_area ();
-	var label = new Label ("This demonstrates a dialog with a label");
-	
-	content_area.add (label);
-	dialog.response.connect (on_response);
-	dialog.show_all ();
+    var dialog = new Gtk.Dialog.with_buttons ("A Gtk+ Dialog", null, 0, Gtk.Stock.OK, Gtk.ResponseType.OK, null);
+    var content_area = dialog.get_content_area () as Gtk.Container; //TODO: explain this
+    var label = new Gtk.Label ("This demonstrates a dialog with a label");
+    
+    content_area.add (label);
+    dialog.response.connect (on_response);
+    dialog.show_all ();
 
-	Gtk.main ();
-	return 0;
+    Gtk.main ();
+    return 0;
 }
diff --git a/platform-demos/C/samples/window.vala b/platform-demos/C/samples/window.vala
index 8f5ac5a..b59e67e 100644
--- a/platform-demos/C/samples/window.vala
+++ b/platform-demos/C/samples/window.vala
@@ -1,10 +1,8 @@
-using Gtk;
-
 int main (string[] args) {
 
-	init (ref args);
+	Gtk.init (ref args);
 
-	var window = new Window ();
+	var window = new Gtk.Window ();
 	window.title = "Welcome to GNOME";
 
 	/*
@@ -14,11 +12,11 @@ int main (string[] args) {
 	 */
 	//window.border_width = 10;
 	//window.set_default_size (350, 70);
-	//window.window_position = WindowPosition.CENTER;
+	//window.window_position = Gtk.WindowPosition.CENTER;
 
 	/*The destroy signal is emitted when the x
 	  in the top right of the window is clicked.*/
-	window.destroy.connect (main_quit);
+	window.destroy.connect (Gtk.main_quit);
 
 	/*The show () method only shows the widget it is called on.
       If the widget has children (for example a label or a button,
diff --git a/platform-demos/C/window.vala.page b/platform-demos/C/window.vala.page
index 2cc859d..a7b3c71 100644
--- a/platform-demos/C/window.vala.page
+++ b/platform-demos/C/window.vala.page
@@ -19,36 +19,34 @@
   <p>A toplevel window with destroy signal hooked up.</p>
   
       <code mime="text/x-vala" style="numbered"><![CDATA[
-using Gtk;
-
 int main (string[] args) {
 
-    init (ref args);
+        Gtk.init (ref args);
 
-    var window = new Window ();
-    window.title = "Welcome to GNOME";
+        var window = new Gtk.Window ();
+        window.title = "Welcome to GNOME";
 
-    /*
-     The following 3 lines are included here to introduce
-     you to ways you can adjust the toplevel window to suit
-     your needs. Uncomment them to see what they do.
-     */
-    //window.border_width = 10;
-    //window.set_default_size (350, 70);
-    //window.window_position = WindowPosition.CENTER;
+        /*
+         The following 3 lines are included here to introduce
+         you to ways you can adjust the toplevel window to suit
+         your needs. Uncomment them to see what they do.
+         */
+        //window.border_width = 10;
+        //window.set_default_size (350, 70);
+        //window.window_position = Gtk.WindowPosition.CENTER;
 
-    /*The destroy signal is emitted when the x
-      in the top right of the window is clicked.*/
-    window.destroy.connect (main_quit);
+        /*The destroy signal is emitted when the x
+          in the top right of the window is clicked.*/
+        window.destroy.connect (Gtk.main_quit);
 
-    /*The show () method only shows the widget it is called on.
+        /*The show () method only shows the widget it is called on.
       If the widget has children (for example a label or a button,
       the method show_all () should be used to show the widget and
        the child widgets.*/
-    window.show ();
+        window.show ();
 
-    Gtk.main ();
-    return 0;
+        Gtk.main ();
+        return 0;
 }
 ]]></code>
 <p>