Bug 146208 ActionBarContributor Enhancement
Use MultiPageEditorActionBarContributor instead of EditorActionBarContributor to support more multi-page feature.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/DesignerActionBarContributor.java
{
		String id, displayName;
		int style;
		public RegisterActions( String id, String displayName )
		{
			this( id, displayName, IAction.AS_UNSPECIFIED );
		}
		public RegisterActions( String id, String displayName, int style )
		{
			this.id = id;
			this.displayName = displayName;
			this.style = style;
		}
	}
	private RegisterActions[] insertElementActions = null;
	private static RegisterActions[] insertActions = new RegisterActions[]{
			new RegisterActions( GeneralInsertMenuAction.INSERT_TEXT_ID,
					GeneralInsertMenuAction.INSERT_TEXT_DISPLAY_TEXT ),
			new RegisterActions( GeneralInsertMenuAction.INSERT_LABEL_ID,
					GeneralInsertMenuAction.INSERT_LABEL_DISPLAY_TEXT ),
			new RegisterActions( GeneralInsertMenuAction.INSERT_DATA_ID,
					GeneralInsertMenuAction.INSERT_DATA_DISPLAY_TEXT ),
			new RegisterActions( GeneralInsertMenuAction.INSERT_IMAGE_ID,
					GeneralInsertMenuAction.INSERT_IMAGE_DISPLAY_TEXT ),
			new RegisterActions( GeneralInsertMenuAction.INSERT_GRID_ID,
					GeneralInsertMenuAction.INSERT_GRID_DISPLAY_TEXT ),
			new RegisterActions( GeneralInsertMenuAction.INSERT_LIST_ID,
					GeneralInsertMenuAction.INSERT_LIST_DISPLAY_TEXT ),
			new RegisterActions( GeneralInsertMenuAction.INSERT_TABLE_ID,
					GeneralInsertMenuAction.INSERT_TABLE_DISPLAY_TEXT ),