Bug 195961 Toggle Visibility does not work for Marker Line/Range and Chart Area [13]
Description: Toggle Visibility does not work for Marker Line/Range and Chart Area. Build number: 2.2.0.v20070710-1223 Steps to reproduce: 1. New a Chart, in "Format Chart" tab, add interactivity for Chart Area or Marker Line/Range, Event: Mouse Click, Action: Toggle Visibility. 2. Preview, click the Chart Area or Marker Line/Range. Expected result: Interactivity works. Actual result: It does not work. Error log: N/A
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/wizard/format/chart/ChartLegendSheetImpl.java
if ( isShowValueEnabled( ) )
		{
			lblShowValue.setEnabled( enabled );
			btnShowValue.setEnabled( enabled );
		}
		
		Iterator buttons = getToggleButtons( ).iterator( );
		while ( buttons.hasNext( ) )
		{
			( (Button) buttons.next( ) ).setEnabled( enabled );
		}
		btnLegendTitle.setEnabled( btnTitleVisible.getSelection( ) && enabled );
		btnInteractivity.setEnabled( getChart( ).getInteractivity( ).isEnable( )
				&& enabled );
	}
	private boolean isShowValueEnabled( )
	{
		return getChart( ).getLegend( ).getItemType( ) == LegendItemType.SERIES_LITERAL;
	}
	private void init( )
	{
		
		if ( getChart( ).getLegend( ).getTitle( ) == null )
		{
			org.eclipse.birt.chart.model.component.Label label = LabelImpl.create( );
			label.eAdapters( ).addAll( getChart( ).getLegend( ).eAdapters( ) );
			getChart( ).getLegend( ).setTitle( label );
		}
	}
	private void createButtonGroup( Composite parent )