StackPaneLabelScaleExample -- Example of possible bug with use of StackPane and ScaleDecorator in Apache Pivot 2.0.2

StackPaneLabelScaleExample.bxml

<Window title="Labels" maximized="true" xmlns:bxml="http://pivot.apache.org/bxml"
	xmlns="org.apache.pivot.wtk">
	<StackPane bxml:id="mainContainer" styles="{backgroundColor:'#cccccc'}">
		<!-- sample SVG available at http://upload.wikimedia.org/wikipedia/commons/5/59/Usa_counties_large.svg -->
		<ImageView bxml:id="background" image="/Usa_counties_large.svg"
			styles="{horizontalAlignment:'left', verticalAlignment:'top', fill:true, preserveAspectRatio:true}" />
		<Label bxml:id="countyLabel" text="King County" x="0" y="0"
			styles="{font:'Helvetica bold 24', color:'#ff0000', wrapText:true}" />
	</StackPane>
</Window>

StackPaneLabelScaleExample.java

package com.einnocenttech.zoobac;

import org.apache.pivot.beans.BXMLSerializer;
import org.apache.pivot.collections.Map;
import org.apache.pivot.wtk.Application;
import org.apache.pivot.wtk.ApplicationContext;
import org.apache.pivot.wtk.ApplicationContext.ScheduledCallback;
import org.apache.pivot.wtk.DesktopApplicationContext;
import org.apache.pivot.wtk.Display;
import org.apache.pivot.wtk.Label;
import org.apache.pivot.wtk.Window;
import org.apache.pivot.wtk.effects.ScaleDecorator;

public class StackPaneLabelScaleExample implements Application
{
	private Window window = null;
	private ScheduledCallback timerCallback = null;

	public static void main(String[] args)
	{
		DesktopApplicationContext.main(StackPaneLabelScaleExample.class, args);
	}

	static void printLabelInfo(Label label)
	{
		System.out.println(String.format("Label position: (%d, %d)", label.getX(), label.getY()));
	}
	
	@Override
	public void startup(Display display, Map<String, String> properties) throws Exception
	{
		final BXMLSerializer bxmlSerializer = new BXMLSerializer();
		window = (Window) bxmlSerializer
				.readObject(StackPaneLabelScaleExample.class, "StackPaneLabelScaleExample.bxml");
		window.open(display);

		final Label label = (Label) bxmlSerializer.getNamespace().get("countyLabel");
		printLabelInfo(label);
		final ScaleDecorator sd = new ScaleDecorator();
		label.getDecorators().add(sd);

		timerCallback = ApplicationContext.scheduleRecurringCallback(new Runnable()
		{
			int count = 0;

			@Override
			public void run()
			{
				count++;
				float scale = 1F - ((float) count / (float) 10);
				System.out.println("count: " + count + "; scale: " + scale);
				sd.setScale(scale);
//				label.setLocation(100, 100);
				label.repaint(true);
				printLabelInfo(label);
				if (count == 9)
				{
					timerCallback.cancel();
				}
			}

		}, 1000, 1000);
	}

	@Override
	public boolean shutdown(boolean optional)
	{
		if (window != null)
		{
			window.close();
		}

		return false;
	}

	@Override
	public void suspend()
	{
	}

	@Override
	public void resume()
	{
	}

}