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1   /*
2    * Copyright 2006 - 2012 Christina Bohk and Roland Ewald
3    *  
4    * Licensed under the Apache License, Version 2.0 (the "License"); 
5    * you may not use this file except in compliance with the License. 
6    * You may obtain a copy of the License at 
7    *  
8    *  http://www.apache.org/licenses/LICENSE-2.0
9    *  
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
13   * See the License for the specific language governing permissions and 
14   * limitations under the License. 
15   */
16  package p3j.gui.misc;
17  
18  import java.awt.event.MouseAdapter;
19  import java.awt.event.MouseEvent;
20  
21  import javax.swing.JPopupMenu;
22  
23  /**
24   * Mouse Adapted that opens a pop-up menu.
25   * 
26   * Created on March 4, 2007
27   * 
28   * @author Christina Bohk
29   * @author Roland Ewald
30   * 
31   */
32  public class PopupOpener extends MouseAdapter {
33  
34    /**
35     * Reference to pop-up menu.
36     */
37    private final JPopupMenu popupMenu;
38  
39    /**
40     * Default constructor.
41     * 
42     * @param puMenu
43     *          the pop-up menu to be opened
44     */
45    public PopupOpener(JPopupMenu puMenu) {
46      this.popupMenu = puMenu;
47    }
48  
49    @Override
50    public void mouseReleased(MouseEvent e) {
51      if (e.isPopupTrigger()) {
52        popupMenu.show(e.getComponent(), e.getX(), e.getY());
53      }
54    }
55  }