<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" xmlns:xi="http://www.w3.org/2001/XInclude" type="guide" style="task" id="spinner.vala" xml:lang="pt-BR">

  <info>

  <title type="text">Spinner (Vala)</title>

    <link type="guide" xref="beginner.vala#display-widgets"/>

    <revision version="0.1" date="2012-05-06" status="draft"/>

    <credit type="author copyright">

      <name>Tiffany Antopolski</name>

      <email its:translate="no">tiffany.antopolski@gmail.com</email>

      <years>2012</years>

    </credit>

    <desc>A spinner animation</desc>

    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">

      <mal:name>Rafael Ferreira</mal:name>

      <mal:email>rafael.f.f1@gmail.com</mal:email>

      <mal:years>2013</mal:years>

    </mal:credit>

  </info>

  <title>Spinner</title>

  <media type="image" mime="image/png" src="media/spinner.png"/>

  
This Spinner is stopped and started by pressing the spacebar.

public class MyWindow : Gtk.ApplicationWindow {

	Gtk.Widget spinner;

	internal MyWindow (MyApplication app) {

		Object (application: app, title: "Spinner Example");

		this.set_default_size (200, 200);

		this.border_width = 30;

		spinner = new Gtk.Spinner ();

		this.add (spinner);

		(spinner as Gtk.Spinner).active = true;

		spinner.show ();

	}

	protected override bool key_press_event (Gdk.EventKey event) {

		//print (Gdk.keyval_name(event.keyval) +"\n");

		if (Gdk.keyval_name(event.keyval) == "space") {

			if ((spinner as Gtk.Spinner).active) {

				(spinner as Gtk.Spinner).stop ();

				//spinner.visible = false;

			}

			else {

				(spinner as Gtk.Spinner).start ();

				//spinner.visible = true;

			}

		}

		return true;

	}

}

public class MyApplication : Gtk.Application {

	protected override void activate () {

		MyWindow window = new MyWindow (this);

		window.show ();

	}

	internal MyApplication () {

		Object (application_id: "org.example.spinner");

	}

}

public int main (string[] args) {

	return new MyApplication ().run (args);

}

  In this sample we used the following:

<list>

  <item>
<link href="http://www.valadoc.org/gtk+-3.0/Gtk.Widget.html">Gtk.Widget</link>
</item>

  <item>
<link href="http://www.valadoc.org/gtk+-3.0/Gtk.Spinner.html">Gtk.Spinner</link>
</item>

  <item>
<link href="http://www.valadoc.org/gdk-3.0/Gdk.keyval_name.html">Gdk.keyval_name</link>
</item>

</list>

</page>