NXvalidate  1
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PopupListener.java
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1 /* NeXus - Neutron & X-ray Common Data Format
2  *
3  * NeXus file validation GUI tool.
4  *
5  * Copyright (C) 2010 Stephen Rankin
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  *
21  * For further information, see <http://www.nexusformat.org/>
22  *
23  * PopupListener.java
24  *
25  */
26 package org.nexusformat.nxvalidate;
27 
28 import java.awt.event.MouseAdapter;
29 import java.awt.event.MouseEvent;
30 import javax.swing.JPopupMenu;
31 
36 public class PopupListener extends MouseAdapter {
37 
38  private JPopupMenu popup;
39 
40  public PopupListener(JPopupMenu popup) {
41  this.popup = popup;
42  }
43 
44  public void mousePressed(MouseEvent e) {
45  maybeShowPopup(e);
46  }
47 
48  public void mouseReleased(MouseEvent e) {
49  maybeShowPopup(e);
50  }
51 
52  private void maybeShowPopup(MouseEvent e) {
53  if (e.isPopupTrigger()) {
54  popup.show(e.getComponent(),
55  e.getX(), e.getY());
56  }
57  }
58 }