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
sb.setMaximum( iItemHeight * elPaletteEntries1.size( ) - iViewHeight );
		sb.setSelection( iViewY );
	}
	/**
	 * 
	 * @param iIndex
	 */
	private final void scrollToView( int iIndex )
	{
		if ( iIndex == -1 )
		{
			return;
		}
		int iStartIndex = iViewY / iItemHeight;
		if ( iStartIndex < 0 )
		{
			iStartIndex = 0;
		}
		if ( iIndex > iStartIndex && iIndex < iStartIndex + iVisibleCount - 1 )
		{
			iViewY = ( iIndex * iItemHeight ) - iViewHeight + iItemHeight;
			if ( iViewY < 0 )
				iViewY = 0;
		}
		else if ( iIndex <= iStartIndex )
		{
			int iMoveUpTo = iIndex - iVisibleCount;
			if ( iMoveUpTo < 0 )
			{
				iMoveUpTo = 0;