extlibraryactionbarcontributor.java

EMF、GEF官方例子源代码

/**
 * <copyright>
 *
 * Copyright (c) 2005 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 - Initial API and implementation
 *
 * </copyright>
 *
 * $Id: EXTLibraryActionBarContributor.java,v 1.3 2006/05/15 21:56:33 emerks Exp $
 */
package org.eclipse.emf.examples.extlibrary.presentation;


import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

import org.eclipse.emf.common.ui.viewer.IViewerProvider;

import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.domain.IEditingDomainProvider;

import org.eclipse.emf.edit.ui.action.ControlAction;
import org.eclipse.emf.edit.ui.action.CreateChildAction;
import org.eclipse.emf.edit.ui.action.CreateSiblingAction;
import org.eclipse.emf.edit.ui.action.EditingDomainActionBarContributor;
import org.eclipse.emf.edit.ui.action.LoadResourceAction;
import org.eclipse.emf.edit.ui.action.ValidateAction;


import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.jface.action.IContributionManager;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.action.SubContributionItem;

import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.Viewer;

import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.PartInitException;


/**
 * This is the action bar contributor for the EXTLibrary model editor.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class EXTLibraryActionBarContributor extends EditingDomainActionBarContributor implements ISelectionChangedListener
{
  /**
   * This keeps track of the active editor.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected IEditorPart activeEditorPart;

  /**
   * This keeps track of the current selection provider.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected ISelectionProvider selectionProvider;

  /**
   * This action opens the Properties view.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected IAction showPropertiesViewAction =
    new Action(EXTLibraryEditorPlugin.INSTANCE.getString("_UI_ShowPropertiesView_menu_item")) //$NON-NLS-1$
    {
      public void run()
      {
        try
        {
          getPage().showView("org.eclipse.ui.views.PropertySheet"); //$NON-NLS-1$
        }
        catch (PartInitException exception)
        {
          EXTLibraryEditorPlugin.INSTANCE.log(exception);
        }
      }
    };

  /**
   * This action refreshes the viewer of the current editor if the editor
   * implements {@link org.eclipse.emf.common.ui.viewer.IViewerProvider}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected IAction refreshViewerAction =
    new Action(EXTLibraryEditorPlugin.INSTANCE.getString("_UI_RefreshViewer_menu_item")) //$NON-NLS-1$
    {
      public boolean isEnabled()
      {
        return activeEditorPart instanceof IViewerProvider;
      }

      public void run()
      {
        if (activeEditorPart instanceof IViewerProvider)
        {
          Viewer viewer = ((IViewerProvider)activeEditorPart).getViewer();
          if (viewer != null)
          {
            viewer.refresh();
          }
        }
      }
    };

  /**
   * This will contain one {@link org.eclipse.emf.edit.ui.action.CreateChildAction} corresponding to each descriptor
   * generated for the current selection by the item provider.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected Collection createChildActions;

  /**
   * This is the menu manager into which menu contribution items should be added for CreateChild actions.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected IMenuManager createChildMenuManager;

  /**
   * This will contain one {@link org.eclipse.emf.edit.ui.action.CreateSiblingAction} corresponding to each descriptor
   * generated for the current selection by the item provider.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected Collection createSiblingActions;

  /**
   * This is the menu manager into which menu contribution items should be added for CreateSibling actions.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected IMenuManager createSiblingMenuManager;

  /**
   * This creates an instance of the contributor.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public EXTLibraryActionBarContributor()
  {
    super(ADDITIONS_LAST_STYLE);
    loadResourceAction = new LoadResourceAction();
    validateAction = new ValidateAction();
    controlAction = new ControlAction();
  }

  /**
   * This adds Separators for editor additions to the tool bar.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void contributeToToolBar(IToolBarManager toolBarManager)
  {
    toolBarManager.add(new Separator("extlibrary-settings")); //$NON-NLS-1$
    toolBarManager.add(new Separator("extlibrary-additions")); //$NON-NLS-1$
  }

  /**
   * This adds to the menu bar a menu and some separators for editor additions,
   * as well as the sub-menus for object creation items.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void contributeToMenu(IMenuManager menuManager)
  {
    super.contributeToMenu(menuManager);

    IMenuManager submenuManager = new MenuManager(EXTLibraryEditorPlugin.INSTANCE.getString("_UI_EXTLibraryEditor_menu"), "org.eclipse.emf.examples.extlibraryMenuID"); //$NON-NLS-1$ //$NON-NLS-2$
    menuManager.insertAfter("additions", submenuManager); //$NON-NLS-1$
    submenuManager.add(new Separator("settings")); //$NON-NLS-1$
    submenuManager.add(new Separator("actions")); //$NON-NLS-1$
    submenuManager.add(new Separator("additions")); //$NON-NLS-1$
    submenuManager.add(new Separator("additions-end")); //$NON-NLS-1$

    // Prepare for CreateChild item addition or removal.
    //
    createChildMenuManager = new MenuManager(EXTLibraryEditorPlugin.INSTANCE.getString("_UI_CreateChild_menu_item")); //$NON-NLS-1$
    submenuManager.insertBefore("additions", createChildMenuManager); //$NON-NLS-1$

    // Prepare for CreateSibling item addition or removal.
    //
    createSiblingMenuManager = new MenuManager(EXTLibraryEditorPlugin.INSTANCE.getString("_UI_CreateSibling_menu_item")); //$NON-NLS-1$
    submenuManager.insertBefore("additions", createSiblingMenuManager); //$NON-NLS-1$

    // Force an update because Eclipse hides empty menus now.
    //
    submenuManager.addMenuListener
      (new IMenuListener()
       {
         public void menuAboutToShow(IMenuManager menuManager)
         {
           menuManager.updateAll(true);
         }
       });

    addGlobalActions(submenuManager);
  }

  /**
   * When the active editor changes, this remembers the change and registers with it as a selection provider.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->