Bug 199009 [Automation][Regression] 2D percent stacked area chart did not render properly
steps to reproduce: - use the attached report design - preview in html expected behavior: - chart was renderred properly actual behavior: - it simply did not do so please refer to the attached screen captures
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/composites/PaletteEditorComposite.java
* (non-Javadoc)
	 * 
	 * @see org.eclipse.swt.events.MouseListener#mouseDoubleClick(org.eclipse.swt.events.MouseEvent)
	 */
	public void mouseDoubleClick( MouseEvent arg0 )
	{
		
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.swt.events.MouseListener#mouseUp(org.eclipse.swt.events.MouseEvent)
	 */
	public void mouseUp( MouseEvent arg0 )
	{
		
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.swt.events.KeyListener#keyPressed(org.eclipse.swt.events.KeyEvent)
	 */
	public void keyPressed( KeyEvent e )
	{
		switch ( e.keyCode )
		{
			case SWT.ARROW_DOWN :
				if ( iSelectedIndex < elPaletteEntries1.size( ) - 1 )
				{
					iSelectedIndex++;