NewComponentAction


1   /***
2    * FractalGUI: a graphical tool to edit Fractal component configurations.
3    * Copyright (C) 2003 France Telecom R&D
4    *
5    * This library is free software; you can redistribute it and/or
6    * modify it under the terms of the GNU Lesser General Public
7    * License as published by the Free Software Foundation; either
8    * version 2 of the License, or (at your option) any later version.
9    *
10   * This library is distributed in the hope that it will be useful,
11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   * Lesser General Public License for more details.
14   *
15   * You should have received a copy of the GNU Lesser General Public
16   * License along with this library; if not, write to the Free Software
17   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18   *
19   * Contact: fractal@objectweb.org
20   *
21   * Authors: Eric Bruneton, Patrice Fauvel
22   */
23  
24  package org.objectweb.fractal.gui.menu.control;
25  
26  import org.objectweb.fractal.gui.model.Component;
27  
28  import java.awt.event.ActionEvent  ;
29  import java.net.URL  ;
30  
31  import javax.swing.ImageIcon  ;
32  import javax.swing.KeyStroke  ;
33  
34  /**
35   * An action to create new components.
36   */
37  
38  public class NewComponentAction extends CreateAction {
39  
40    /**
41     * Constructs a new {@link NewComponentAction} component.
42     */
43  
44    public NewComponentAction () {
45      putValue(NAME, "New component");
46      putValue(ACCELERATOR_KEY, KeyStroke.getKeyStroke("INSERT"));
47      URL   url = getClass().getResource(
48        "/org/objectweb/fractal/gui/resources/empty.gif");
49      putValue(SMALL_ICON, new ImageIcon  (url));
50      setEnabled(false);
51    }
52  
53    // -------------------------------------------------------------------------
54    // Implementation of the SelectionListener interface
55    // -------------------------------------------------------------------------
56  
57    public void selectionChanged () {
58      boolean enabled = false;
59      Object   o = selection.getSelection();
60      if (o instanceof Component) {
61        Component c = (Component)o;
62        enabled = c.getMasterComponent() == null;
63      }
64      setEnabled(enabled);
65    }
66  
67    // -------------------------------------------------------------------------
68    // Implementation of the ActionListener interface
69    // -------------------------------------------------------------------------
70  
71    public void actionPerformed (final ActionEvent   e) {
72      Object   o = selection.getSelection();
73      Component parent = (Component)o;
74      Component child = factory.createComponent();
75      parent.addSubComponent(child);
76      //selection.selectComponent(child);
77    }
78  }
79
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