content: /*******************************************************************************
   * Copyright (c) 2000, 2007 IBM Corporation and others.
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Eclipse Public License v1.0
   * which accompanies this distribution, and is available at
   * http://www.eclipse.org/legal/epl-v10.html
   *
   * Contributors:
   *     IBM Corporation - initial API and implementation
   *******************************************************************************/
  package org.eclipse.wst.jsdt.internal.ui.actions;
  
  import org.eclipse.core.runtime.Assert;
  import org.eclipse.jface.action.IMenuManager;
  import org.eclipse.ui.IActionBars;
  import org.eclipse.ui.actions.ActionContext;
  import org.eclipse.ui.actions.ActionGroup;
  
  public class CompositeActionGroup extends ActionGroup {
  
  	private ActionGroup[] fGroups;
  	
  	public CompositeActionGroup() {
  	}
  	
  	public CompositeActionGroup(ActionGroup[] groups) {
  		setGroups(groups);
  	}
  
  	protected void setGroups(ActionGroup[] groups) {
  		Assert.isTrue(fGroups == null);
  		Assert.isNotNull(groups);
  		fGroups= groups;		
  	}
  		
  	public ActionGroup get(int index) {
  		if (fGroups == null)
  			return null;
  		return fGroups[index];
  	}
  	
  	public void addGroup(ActionGroup group) {
  		if (fGroups == null) {
  			fGroups= new ActionGroup[] { group };
  		} else {
  			ActionGroup[] newGroups= new ActionGroup[fGroups.length + 1];
  			System.arraycopy(fGroups, 0, newGroups, 0, fGroups.length);
  			newGroups[fGroups.length]= group;
  			fGroups= newGroups;
  		}
  	}
  	
  	public void dispose() {
  		super.dispose();
  		if (fGroups == null)
  			return;
  		for (int i= 0; i < fGroups.length; i++) {
  			fGroups[i].dispose();
  		}
  	}
  
  	public void fillActionBars(IActionBars actionBars) {
  		super.fillActionBars(actionBars);
  		if (fGroups == null)
  			return;
  		for (int i= 0; i < fGroups.length; i++) {
  			fGroups[i].fillActionBars(actionBars);
  		}
  	}
  
  	public void fillContextMenu(IMenuManager menu) {
  		super.fillContextMenu(menu);
  		if (fGroups == null)
  			return;
  		for (int i= 0; i < fGroups.length; i++) {
  			fGroups[i].fillContextMenu(menu);
  		}
  	}
  
  	public void setContext(ActionContext context) {
  		super.setContext(context);
  		if (fGroups == null)
  			return;
  		for (int i= 0; i < fGroups.length; i++) {
  			fGroups[i].setContext(context);
  		}
  	}
  
  	public void updateActionBars() {
  		super.updateActionBars();
  		if (fGroups == null)
  			return;
  		for (int i= 0; i < fGroups.length; i++) {
  			fGroups[i].updateActionBars();
  		}
  	}
  }
  