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

[Tiffany Antopolski <antopolski src gnome org>]

commit fa64edf66ee44a733b4627bb72dade358867b159
Author: Tiffany Antopolski <tiffany antopolski gmail com>
Date:   Thu Jun 7 22:30:24 2012 -0400

    Vala SpinButton sample code and Mallard page.
    
    - added to Makefile.am also.

 platform-demos/C/samples/spinbutton.vala |   35 ++++++++++++++++++++++++++++++
 platform-demos/C/spinbutton.vala.page    |   32 +++++++++++++++++++++++++++
 platform-demos/Makefile.am               |    2 +
 3 files changed, 69 insertions(+), 0 deletions(-)
---
diff --git a/platform-demos/C/samples/spinbutton.vala b/platform-demos/C/samples/spinbutton.vala
new file mode 100644
index 0000000..37659b2
--- /dev/null
+++ b/platform-demos/C/samples/spinbutton.vala
@@ -0,0 +1,35 @@
+/* This is the application. */
+public class MyApplication : Gtk.Application {
+	Gtk.Label label;
+
+	/* Override the 'activate' signal of GLib.Application. */
+	protected override void activate () {
+		var window = new Gtk.ApplicationWindow (this);
+		window.title = "SpinButton Example";
+		window.set_default_size (210, 70);
+		window.set_border_width (5);
+
+		var spinbutton = new Gtk.SpinButton.with_range (0, 100, 1);
+		spinbutton.set_hexpand (true);
+
+		label = new Gtk.Label ("Choose a number");
+
+		var grid = new Gtk.Grid ();
+		grid.attach (spinbutton, 0, 0, 1, 1);
+		grid.attach (label, 0, 1, 1, 1);
+
+		spinbutton.value_changed.connect (this.value_changed_cb);
+
+		window.add (grid);
+		window.show_all ();
+	}
+
+	void value_changed_cb (Gtk.SpinButton spin) {
+		label.set_text ("The number you selected is %.0f.".printf (spin.get_value()));
+	}
+}
+
+/* main creates and runs the application. */
+public int main (string[] args) {
+	return new MyApplication ().run (args);
+}
diff --git a/platform-demos/C/spinbutton.vala.page b/platform-demos/C/spinbutton.vala.page
new file mode 100644
index 0000000..bef87a5
--- /dev/null
+++ b/platform-demos/C/spinbutton.vala.page
@@ -0,0 +1,32 @@
+<?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="spinbutton.vala">
+  <info>
+    <link type="guide" xref="beginner.vala#entry"/>
+    <link type="seealso" xref="label.vala"/>
+    <link type="seealso" xref="grid.vala"/>
+    <revision version="0.1" date="2012-05-07" status="draft"/>
+
+    <credit type="author copyright">
+      <name>Tiffany Antopolski</name>
+      <email>tiffany antopolski gmail com</email>
+      <years>2012</years>
+    </credit>
+
+    <desc>Retrieve an integer or floating point number.</desc>
+  </info>
+
+  <title>SpinButton</title>
+  <media type="image" mime="image/png" src="media/spinbutton.png"/>
+    <p>Choose a number, by entering it or by clicking on the -/+ buttons!</p>
+
+<code mime="text/x-vala" style="numbered"><xi:include href="samples/spinbutton.vala" parse="text"><xi:fallback/></xi:include></code>
+<p>
+  In this sample we used the following:
+</p>
+<list>
+  <item><p><link href="http://www.valadoc.org/gtk+-3.0/Gtk.SpinButton.html";>Gtk.SpinButton</link></p></item>
+</list>
+</page>
diff --git a/platform-demos/Makefile.am b/platform-demos/Makefile.am
index 00ac964..995e74c 100644
--- a/platform-demos/Makefile.am
+++ b/platform-demos/Makefile.am
@@ -78,6 +78,7 @@ demo_sources = \
 	samples/scrolledwindow.py		\
 	samples/separator.py			\
 	samples/spinbutton.py			\
+	samples/spinbutton.vala			\
 	samples/spinner.js			\
 	samples/spinner.py			\
 	samples/spinner.vala			\
@@ -237,6 +238,7 @@ DOC_PAGES =				\
 	scrolledwindow.py.page		\
 	separator.py.page		\
 	spinbutton.py.page		\
+	spinbutton.vala.page		\
 	spinner.js.page			\
 	spinner.py.page			\
 	spinner.vala.page		\