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/editors/schematic/actions/EditStyleAction.java
{
	
	public static final String ID = "org.eclipse.birt.report.designer.internal.ui.editors.schematic.actions.EditStyleAction"; 
	private SharedStyleHandle handle;
	/**
	 * @param handle
	 */
	public EditStyleAction( SharedStyleHandle handle )
	{
		this.handle = handle;
		setId( ID );
		if ( handle.getContainerSlotHandle( ).getElementHandle( ) instanceof ThemeHandle )
		{
			setText( ( (ThemeHandle) handle.getContainerSlotHandle( )
					.getElementHandle( ) ).getName( )
					+ "."
					+ DEUtil.getEscapedMenuItemText( DEUtil.getDisplayLabel( handle,
							false ) ) );
		}
		else
		{
			setText( DEUtil.getEscapedMenuItemText( DEUtil.getDisplayLabel( handle,
					false ) ) );
		}
	}
	/*