Bug 168839 Chart Legend Toggle Visibility does not work correctly for Pie chart in SVG[0001]
Description: Chart Legend Toggle Visibility does not work correctly . Build number: 2.1.2.v20061221-0710 Steps to reproduce: 1. Preview the attached design file. 2. Click the legend. Expected result: Toggle Visibility works correctly. Actual result: Pie slice of different color disappears when being click. Error log: N/A
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
Size titleSize = lilh.getTitleSize( );
			lgTitleWidth = titleSize.getWidth( );
			lgTitleHeight = titleSize.getHeight( );
			iTitlePos = lg.getTitlePosition( ).getValue( );
			
			if ( isRightToLeft( ) )
			{
				if ( iTitlePos == Position.LEFT )
				{
					iTitlePos = Position.RIGHT;
				}
				else if ( iTitlePos == Position.RIGHT )
				{
					iTitlePos = Position.LEFT;
				}
			}
			switch ( iTitlePos )
			{
				case Position.ABOVE :
					yOffset = lgTitleHeight;
					hOffset = -yOffset;
					break;
				case Position.BELOW :
					hOffset = -lgTitleHeight;
					break;
				case Position.LEFT :
					xOffset = lgTitleWidth;
					wOffset = -xOffset;
					break;
				case Position.RIGHT :