Bug 132645 Mouse Double Click/URL Redirect on Y series of Line Chart does not work
Decription: Add a interactivity on line chart, mouse double click/URL Redirect on Y Series, does not work. Steps to reproduce: 1.Add a line chart, bind with valid dataset. 2.In the "Format Chart" tab, add a interactivity on "Value(Y) Series", the type is "Mouse Double Click", and the action is set "URL Redirect". 3.Preview in layout, click on the Y Series, interactivity does not work.
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/image/JavaxImageIOWriter.java
x = 40;
			y += fm.getHeight( );
		}
	}
	protected String eval( String expr )
	{
		if ( expr == null )
		{
			return ""; 
		}
		expr = expr.replaceAll( "\"", "&quot;" ); 
		return expr;
	}
	/**
	 * When 1). The action is supported, and the action type is INVOKE_SCRIPT.
	 * 2). The script has not been added into ImageMap. 3). The action acts on
	 * the value series area. Add the script into ImageMap.
	 * 
	 * @param sa
	 *            ShapedAction
	 * @param sb
	 *            StringBuffer
	 */
	private void userCallback( ShapedAction sa, StringBuffer sb )
	{
		if ( !bAddCallbackByClick )
		{
			addScriptCallBack( sa,
					sb,
					sa.getActionForCondition( TriggerCondition.ONCLICK_LITERAL ),