Bug 166015 Refactor designer actions to eclipse command framework
Eclipse command framework provide a more explicit way to manage UI actions contributions, we can take it's advantage to make our actions code more clean and maintainable.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dnd/InsertInLayoutUtil.java
dataHandle.addColumnBinding( bindingColumn, false );
			dataHandle.setDataSet( dataSet );
		}
		
		
		
		
		
		
		
		
		
		
		InsertInLayoutRule rule = new LabelAddRule( target );
		if ( rule.canInsert( ) )
		{
			
			
			
			
			LabelHandle label = DesignElementFactory.getInstance( )
					.newLabel( null );
			label.setText( getDisplayName( model ) );
			rule.insert( label );
		}
		rule = new GroupKeySetRule( target, model );
		if ( rule.canInsert( ) )
		{
			rule.insert( model );
		}