<?xml version="1.0" encoding="utf-8"?>

<Shell name="shell" descriptors="xworker.swt.widgets.Shell" text="Canvas" RESIZE="true" 
          width="800" height="600" label="Canvas">
    <FillLayout name="shellFillLayout"></FillLayout>
    <Group name="group" text="Canvas" label="Canvas">
        <FillLayout name="groupFillLayout"></FillLayout>
        <Canvas name="canvas">
            <Listeners>
                <Listener name="canvasPaintListener" type="Paint">
                    <GroovyAction name="painGroovy">
                        <code><![CDATA[def e = event;
def gc = e.gc;
def size = canvas.getSize ();
def cx = 0; cy = 0;
gc.drawArc(cx + 1, cy + 1, size.x - 2, size.y - 2, 0, 360);
gc.drawRectangle((int) (cx + (size.x - 10) / 2), (int) (cy + (size.y - 10) / 2), 10, 10);
def canvasString = "Canvas";
def extent = gc.textExtent(canvasString);
gc.drawString(canvasString, (int) (cx + (size.x - extent.x) / 2), 
        (int) (cy - extent.y + (size.y - 10) / 2), true);]]></code>
                    </GroovyAction>
                </Listener>
            </Listeners>
        </Canvas>
    </Group>
</Shell>