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
else if ( ( btn.getStyle( ) & SWT.DOWN ) == SWT.DOWN )
			{
				if ( iSelectedIndex < elPaletteEntries1.size( ) - 1 )
				{
					swap( iSelectedIndex, iSelectedIndex + 1 );
				}
			}
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.swt.events.MouseListener#mouseDown(org.eclipse.swt.events.MouseEvent)
	 */
	public void mouseDown( MouseEvent mev )
	{
		int iClickedY = mev.y;
		int iStartIndex = iViewY / iItemHeight;
		if ( iStartIndex < 0 )
		{
			iStartIndex = 0;
		}
		int iY = -( iViewY % iItemHeight );
		int iClickedIndex = iStartIndex + ( iClickedY - iY ) / iItemHeight;
		if ( iClickedIndex < 0 || iClickedIndex > elPaletteEntries1.size( ) )
		{
			return;
		}
		iSelectedIndex = iClickedIndex;
		coPaletteEntries.redraw( );