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Java > Open Source Codes > org > objectweb > openccm > explorer > CosTrading > gui > DefaultNodeViewPanel


1 /*===========================================================================
2
3 OpenCCM: The Open CORBA Component Model Platform
4 Copyright (C) 2000-2003 INRIA - USTL - LIFL - GOAL
5 Contact: openccm@objectweb.org
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 2.1 of the License, or 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
20 USA
21
22 Initial developer(s):Sylvain Leblanc.
23 Contributor(s): ______________________________________.
24
25 ===========================================================================*/
26
27 package org.objectweb.openccm.explorer.CosTrading.gui;
28
29
30 import javax.swing.JPanel JavaDoc;
31
32 import org.objectweb.util.explorer.api.Panel;
33 import org.objectweb.util.explorer.api.TreeView;
34
35 /**
36  * Default implementation of the node view panel. Does nothing in the
37  * three methods to implement except storring the tree view and
38  * calling the <code>onSetTreeView</code> method.
39  *
40  * @author <a HREF="mailto:Sylvain.Leblanc@lifl.fr">Sylvain Leblanc</a>
41  * @version 0.1
42  */
43 public class DefaultNodeViewPanel
44      extends JPanel JavaDoc
45   implements Panel JavaDoc
46 {
47
48     // ==================================================================
49 //
50 // Internal state.
51 //
52 // ==================================================================
53
54     /**
55      * The last setted tree view or <code>null</code> if never setted.
56      */
57     private TreeView treeView_;
58
59     // ==================================================================
60 //
61 // Constructors.
62 //
63 // ==================================================================
64
65     /**
66      * Default constructor.
67      */
68     public DefaultNodeViewPanel() {
69     }
70
71     // ==================================================================
72 //
73 // Internal methods.
74 //
75 // ==================================================================
76
77     /**
78      * The last setted tree view or <code>null</code> if never setted.
79      */
80     protected TreeView getTreeView() {
81         return treeView_;
82     }
83
84     // ==================================================================
85 //
86 // Public methods.
87 //
88 // ==================================================================
89
90     /**
91      * Actions to do after setting the tree view. Here does nothing.
92      */
93     public void onSetTreeView() {
94     }
95
96     // ==================================================================
97 //
98 // Public methods for interface TreeHandling.
99 //
100 // ==================================================================
101
102     /**
103      * Invokes just after instanciation. Here does nothing.
104      */
105     public void selected(TreeView treeView) {
106         treeView_ = treeView;
107         onSetTreeView();
108     }
109
110     /**
111      * Provides the panel to display.
112      * @return The panel to display.
113      */
114     public Object JavaDoc getPanel(){
115         return this;
116     }
117
118     /**
119      * Invokes just before removing. Here does nothing.
120      */
121     public void unselected(TreeView treeView) {
122     }
123
124 }
125
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