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/SwtEventHandler.java
MouseListener,
		MouseMoveListener,
		MouseTrackListener,
		KeyListener
{
	private static final ILogger logger = Logger.getLogger( "org.eclipse.birt.chart.device.extension/swt" ); 
	private final Cursor hand_cursor;
	private final LinkedHashMap lhmAllTriggers;
	private final IUpdateNotifier iun;
	private RegionAction raTooltip = null;
	private RegionAction raHighlighted = null;
	private final ULocale lcl;
	private final GC _gc;
	/**
	 * The constructor.
	 * 
	 * @param _lhmAllTriggers
	 * @param _jc
	 * @param _lcl
	 */
	SwtEventHandler( LinkedHashMap _lhmAllTriggers, IUpdateNotifier _jc,
			ULocale _lcl )
	{
		lhmAllTriggers = _lhmAllTriggers;
		iun = _jc;
		lcl = _lcl;