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Java > Open Source Codes > org > objectweb > fractal > gui > selection > model > Selection


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.selection.model;
25
26 import org.objectweb.fractal.gui.model.Component;
27 import org.objectweb.fractal.gui.model.Interface;
28
29 /**
30  * A model for the selection.
31  */
32
33 public interface Selection {
34
35   /**
36    * Returns the component or interface that is currently selected.
37    *
38    * @return the component or interface that is currently selected. May be
39    * <tt>null</tt> if the selection is empty.
40    */
41
42   Object JavaDoc getSelection ();
43
44   /**
45    * Selects the given component.
46    *
47    * @param component the component that must be selected.
48    */
49
50   void selectComponent (Component component);
51
52   /**
53    * Selects the given interface.
54    *
55    * @param itf the interface that must be selected.
56    */
57
58   void selectInterface (Interface itf);
59
60   /**
61    * Clears the selection.
62    */
63
64   void clearSelection ();
65 }
66
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