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:
   *   Jesper Kamstrup Linnet (eclipse@kamstrup-linnet.dk) - initial API and implementation 
   * 			(report 36180: Callers/Callees view)
   *******************************************************************************/
  package org.eclipse.wst.jsdt.internal.ui.callhierarchy;
  
  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;
  
  /**
   * Toggles the call direction of the call hierarchy (i.e. toggles between showing callers and callees.)
   */
  class ToggleCallModeAction extends Action {
  
      private CallHierarchyViewPart fView;    
      private int fMode;
      
      public ToggleCallModeAction(CallHierarchyViewPart v, int mode) {
          super("", AS_RADIO_BUTTON); //$NON-NLS-1$
          if (mode == CallHierarchyViewPart.CALL_MODE_CALLERS) {
              setText(CallHierarchyMessages.ToggleCallModeAction_callers_label); 
              setDescription(CallHierarchyMessages.ToggleCallModeAction_callers_description); 
              setToolTipText(CallHierarchyMessages.ToggleCallModeAction_callers_tooltip); 
              JavaPluginImages.setLocalImageDescriptors(this, "ch_callers.gif"); //$NON-NLS-1$
          } else if (mode == CallHierarchyViewPart.CALL_MODE_CALLEES) {
              setText(CallHierarchyMessages.ToggleCallModeAction_callees_label); 
              setDescription(CallHierarchyMessages.ToggleCallModeAction_callees_description); 
              setToolTipText(CallHierarchyMessages.ToggleCallModeAction_callees_tooltip); 
              JavaPluginImages.setLocalImageDescriptors(this, "ch_callees.gif"); //$NON-NLS-1$
          } else {
              Assert.isTrue(false);
          }
          fView= v;
          fMode= mode;
          PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.CALL_HIERARCHY_TOGGLE_CALL_MODE_ACTION);
      }
      
      public int getMode() {
          return fMode;
      }   
      
      /*
       * @see Action#actionPerformed
       */     
      public void run() {
          fView.setCallMode(fMode); // will toggle the checked state
      }
      
  }
  