[gnome-devel-docs] Vala ColorButton sample code and Mallard page.

[Tiffany Antopolski <antopolski src gnome org>]

commit 50c8a045b18272d8c473713e915ecd95c7f4322a
Author: Tiffany Antopolski <tiffany antopolski gmail com>
Date:   Fri Jun 8 00:12:20 2012 -0400

    Vala ColorButton sample code and Mallard page.
    
    - both added to Makefile.am

 platform-demos/C/colorbutton.vala.page    |   33 ++++++++++++++++++++++++
 platform-demos/C/samples/colorbutton.vala |   39 +++++++++++++++++++++++++++++
 platform-demos/Makefile.am                |    2 +
 3 files changed, 74 insertions(+), 0 deletions(-)
---
diff --git a/platform-demos/C/colorbutton.vala.page b/platform-demos/C/colorbutton.vala.page
new file mode 100644
index 0000000..23a31ed
--- /dev/null
+++ b/platform-demos/C/colorbutton.vala.page
@@ -0,0 +1,33 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<page xmlns="http://projectmallard.org/1.0/";
+      xmlns:xi="http://www.w3.org/2001/XInclude";
+      type="guide" style="task"
+      id="colorbutton.vala">
+  <info>
+    <link type="guide" xref="beginner.vala#color-selectors"/>
+    <link type="seealso" xref="grid.vala"/>
+    <link type="seealso" xref="label.vala"/>
+    <revision version="0.1" date="2012-06-07" status="draft"/>
+
+    <credit type="author copyright">
+      <name>Tiffany Antopolski</name>
+      <email>tiffany antopolski gmail com</email>
+      <years>2012</years>
+    </credit>
+
+    <desc>A button to launch a color selection dialog</desc>
+  </info>
+
+  <title>ColorButton</title>
+  <media type="image" mime="image/png" src="media/colorbutton.png"/>
+  <p>RGB values of the selected color are shown in the label.</p>
+
+<code mime="text/x-vala" style="numbered"><xi:include href="samples/colorbutton.vala" parse="text"><xi:fallback/></xi:include></code>
+<p>
+  In this sample we used the following:
+</p>
+<list>
+  <item><p><link href="http://valadoc.org/gtk+-3.0/Gtk.ColorButton.html";>Gtk.ColorButton</link></p></item>
+  <item><p><link href="http://valadoc.org/gdk-3.0/Gdk.RGBA.html";>Gdk.RGBA</link></p></item>
+</list>
+</page>
diff --git a/platform-demos/C/samples/colorbutton.vala b/platform-demos/C/samples/colorbutton.vala
new file mode 100644
index 0000000..9bf3c54
--- /dev/null
+++ b/platform-demos/C/samples/colorbutton.vala
@@ -0,0 +1,39 @@
+/* This is the application. */
+public class MyApplication : Gtk.Application {
+	Gtk.Label label;
+
+	/* Override the 'activate' signal of GLib.Application. */
+	protected override void activate () {
+		/* Create the window of this application and show it. */
+		var window = new Gtk.ApplicationWindow (this);
+		window.title = "ColorButton";
+		window.set_default_size (150, 50);
+		window.set_border_width (10);
+
+		/* Create a new ColorButton with default blue. */
+		var blue = Gdk.RGBA ();
+		blue.parse ("blue");
+		var colorbutton = new Gtk.ColorButton.with_rgba (blue);
+
+		label = new Gtk.Label ("Click to choose a color");
+
+		var grid = new Gtk.Grid ();
+		grid.attach (colorbutton, 0, 0, 1, 1);
+		grid.attach_next_to (label, colorbutton, Gtk.PositionType.BOTTOM, 1, 1);
+
+		colorbutton.color_set.connect (this.on_color_set);
+
+		window.add (grid);
+		window.show_all ();
+	}
+
+	void on_color_set (Gtk.ColorButton button) {
+		var color =  button.get_rgba ();
+		label.set_text ("RGBA: " + color.to_string());
+	}
+}
+
+/* main creates and runs the application. */
+public int main (string[] args) {
+	return new MyApplication ().run (args);
+}
diff --git a/platform-demos/Makefile.am b/platform-demos/Makefile.am
index 995e74c..97fc506 100644
--- a/platform-demos/Makefile.am
+++ b/platform-demos/Makefile.am
@@ -32,6 +32,7 @@ demo_sources = \
 	samples/checkbutton.py			\
 	samples/checkbutton.vala		\
 	samples/colorbutton.py			\
+	samples/colorbutton.vala		\
 	samples/combobox.py			\
 	samples/combobox.vala			\
 	samples/combobox_multicolumn.py		\
@@ -169,6 +170,7 @@ DOC_PAGES =				\
 	checkbutton.py.page		\
 	checkbutton.vala.page		\
 	colorbutton.py.page		\
+	colorbutton.vala.page		\
 	combobox.py.page		\
 	combobox.vala.page		\
 	combobox_multicolumn.py.page	\