cvs commit: jakarta-ant/src/antidote/org/apache/tools/ant/gui/core ProjectSelectionMenu.java

[me...@apache.org]

metasim     01/01/10 12:46:54

  Added:       src/antidote/org/apache/tools/ant/gui/core
                        ProjectSelectionMenu.java
  Log:
  Added full support for multiple projects open at the same time. Each project
  appears as an entry in the "Projects" menu.
  
  Revision  Changes    Path
  1.1                  jakarta-ant/src/antidote/org/apache/tools/ant/gui/core/ProjectSelectionMenu.java
  
  Index: ProjectSelectionMenu.java
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2001 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Ant", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  package org.apache.tools.ant.gui.core;
  
  import org.apache.tools.ant.gui.event.*;
  import org.apache.tools.ant.gui.acs.ACSProjectElement;
  import javax.swing.*;
  import java.awt.event.ActionEvent;
  import java.awt.event.ActionListener;
  import java.util.*;
  /**
   * Specialization of JMenu providing selectability of the currently
   * open projects.
   * 
   * @version $Revision: 1.1 $ 
   * @author Simeon Fitch 
   */
  public class ProjectSelectionMenu extends JMenu {
      /** Application context. */
      private AppContext _context = null;
      /** Current set of menus. */
      private Map _menus = new HashMap();
          
  
      /** 
       * Standard ctor.
       * 
       * @param context Application context.
       */
      public ProjectSelectionMenu(AppContext context) {
          super(context.getResources().getString(
              ProjectSelectionMenu.class, "name"), true);
          _context = context;
          _context.getEventBus().addMember(
              EventBus.MONITORING, new ProjectListener());
          setMnemonic(getText().charAt(0));
      }
  
      /** 
       * Replace or add the JMenu called "Projects" with this.
       * 
       * @param menuBar Menu bar to insert into.
       */
      public void insertInto(JMenuBar menuBar) {
          // Iterate of the menu items looking for the one with the same name
          // as ours.
          int count = menuBar.getComponentCount();
          for(int i = 0; i < count; i++) {
              JMenuItem menu = (JMenuItem) menuBar.getComponent(i);
              if(menu.getText().equals(getText())) {
                  menuBar.remove(menu);
                  menuBar.add(this, i);
                  return;
              }
          }
  
          // Getting here we didn't find a menu with the same name.
          add(this);
      }
  
  
      /** Listener for updating the contents of the menu. */
      private class ProjectListener implements BusMember {
          /** Event filter. */
          private final Filter _filter = new Filter();
          /** Action handler. */
          private final ActionHandler _handler = new ActionHandler();
          /** 
           * Get the filter to that is used to determine if an event should
           * to to the member.
           * 
           * @return Filter to use.
           */
          public BusFilter getBusFilter() {
              return _filter;
          }
  
          /** 
           * Called when an event is to be posed to the member.
           * 
           * @param event Event to post.
           * @return true if event should be propogated, false if
           * it should be cancelled.
           */
          public boolean eventPosted(EventObject event) {
              // Clear out our existing members
              removeAll();
              _menus.clear();
  
              ACSProjectElement[] projects = 
                  _context.getProjectManager().getOpen();
              for(int i = 0; i < projects.length; i++) {
                  JMenuItem menu = new JMenuItem(projects[i].getName());
                  menu.addActionListener(_handler);
                  _menus.put(menu, projects[i]);
                  add(menu);
              }
              return true;
          }
      }
  
      /** Filter for project related events. */
      private static class Filter implements BusFilter {
          public boolean accept(EventObject event) {
              return event instanceof ProjectSelectedEvent ||
                  event instanceof ProjectClosedEvent;
          }
      }
  
      /** Handler for selecting the project. */
      private class ActionHandler implements ActionListener {
          public void actionPerformed(ActionEvent e) {
              ACSProjectElement project = 
                  (ACSProjectElement) _menus.get(e.getSource());
              _context.getEventBus().postEvent(
                  new ProjectSelectedEvent(_context, project));
          }
      }
  
  }