Bug 140620 Chart scripting errors are ignored
Write a chart with an invalid script, the execution simply ignores the script. This makes it difficult to debug scripting. The error message is also not precise and needs improvements.
chart/org.eclipse.birt.chart.device.swt/src/org/eclipse/birt/chart/device/swt/SwtRendererImpl.java
*/
	public Object getGraphicsContext( )
	{
		return _gc;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.event.IDeviceRenderer#getDisplayServer()
	 */
	public IDisplayServer getDisplayServer( )
	{
		return _ids;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.event.IPrimitiveRenderer#setClip(org.eclipse.birt.chart.event.ClipRenderEvent)
	 */
	public void setClip( ClipRenderEvent cre )
	{
		final Location[] loa = cre.getVertices( );
		if ( loa == null )
		{
			_gc.setClipping( (Region) null );
		}
		else
		{
			Region rgClipping = new Region( );
			rgClipping.add( getCoordinatesAsInts( loa,