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.typehierarchy;
  
  import org.eclipse.core.runtime.Assert;
  import org.eclipse.jface.action.Action;
  import org.eclipse.ui.PlatformUI;
  import org.eclipse.wst.jsdt.internal.ui.IJavaHelpContextIds;
  import org.eclipse.wst.jsdt.internal.ui.JavaPluginImages;
  import org.eclipse.wst.jsdt.ui.ITypeHierarchyViewPart;
  
  /**
   * Action to switch between the different hierarchy views.
   */
  public class ToggleViewAction extends Action {
  	
  	private ITypeHierarchyViewPart fViewPart;
  	private int fViewerIndex;
  		
  	public ToggleViewAction(ITypeHierarchyViewPart v, int viewerIndex) {
  		super("", AS_RADIO_BUTTON); //$NON-NLS-1$
  		String contextHelpId= null;
  		if (viewerIndex == ITypeHierarchyViewPart.HIERARCHY_MODE_SUPERTYPES) {
  			setText(TypeHierarchyMessages.ToggleViewAction_supertypes_label); 
  			contextHelpId= IJavaHelpContextIds.SHOW_SUPERTYPES;
  			setDescription(TypeHierarchyMessages.ToggleViewAction_supertypes_description); 
  			setToolTipText(TypeHierarchyMessages.ToggleViewAction_supertypes_tooltip); 
  			JavaPluginImages.setLocalImageDescriptors(this, "super_co.gif"); //$NON-NLS-1$
  		} else if (viewerIndex == ITypeHierarchyViewPart.HIERARCHY_MODE_SUBTYPES) {
  			setText(TypeHierarchyMessages.ToggleViewAction_subtypes_label); 
  			contextHelpId= IJavaHelpContextIds.SHOW_SUBTYPES;
  			setDescription(TypeHierarchyMessages.ToggleViewAction_subtypes_description); 
  			setToolTipText(TypeHierarchyMessages.ToggleViewAction_subtypes_tooltip); 
  			JavaPluginImages.setLocalImageDescriptors(this, "sub_co.gif"); //$NON-NLS-1$
  		} else if (viewerIndex == ITypeHierarchyViewPart.HIERARCHY_MODE_CLASSIC) {
  			setText(TypeHierarchyMessages.ToggleViewAction_vajhierarchy_label); 
  			contextHelpId= IJavaHelpContextIds.SHOW_HIERARCHY;
  			setDescription(TypeHierarchyMessages.ToggleViewAction_vajhierarchy_description); 
  			setToolTipText(TypeHierarchyMessages.ToggleViewAction_vajhierarchy_tooltip); 
  			JavaPluginImages.setLocalImageDescriptors(this, "hierarchy_co.gif"); //$NON-NLS-1$
  		} else {
  			Assert.isTrue(false);
  		}		
  		
  		fViewPart= v;
  		fViewerIndex= viewerIndex;
  		
  		PlatformUI.getWorkbench().getHelpSystem().setHelp(this, contextHelpId);
  	}
  				
  	public int getViewerIndex() {
  		return fViewerIndex;
  	}
  
  	/*
  	 * @see Action#actionPerformed
  	 */	
  	public void run() {
  		fViewPart.setHierarchyMode(fViewerIndex);
  	}		
  }
  