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1   /*
2    *  File: RowContextMenuHandler.java 
3    *  Copyright (c) 2004-2007  Peter Kliem (Peter.Kliem@jaret.de)
4    *  A commercial license is available, see http://www.jaret.de.
5    *
6    *  This program is free software; you can redistribute it and/or modify
7    *  it under the terms of the GNU General Public License as published by
8    *  the Free Software Foundation; either version 2 of the License, or
9    *  (at your option) any later version.
10   *
11   *  This program is distributed in the hope that it will be useful,
12   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   *  GNU General Public License for more details.
15   *
16   *  You should have received a copy of the GNU General Public License
17   *  along with this program; if not, write to the Free Software
18   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19   */
20  package de.jaret.util.ui.timebars.swt;
21  
22  import org.eclipse.swt.widgets.Menu;
23  
24  import de.jaret.util.ui.timebars.model.TimeBarRow;
25  
26  /**
27   * Callback interface for retrieving a context menu on a header or hierarchy popup.
28   * 
29   * @author Peter Kliem
30   * @version $Id: RowContextMenuHandler.java 800 2008-12-27 22:27:33Z kliem $
31   */
32  public interface RowContextMenuHandler {
33      /**
34       * Retrieve a configured context menu appropriate for the row selection. May return <code>null</code> indicating no
35       * context menu.
36       * 
37       * @param tbv requesting TimeBarViewer.
38       * @param row row on which the context menu is popped up
39       * @return a configured context menu or null.
40       */
41      Menu getContextMenu(TimeBarViewer tbv, TimeBarRow row);
42  }