DefaultFractalIconProvider


1   /*====================================================================
2    
3    Objectweb Browser Framework
4    Copyright (C) 2000-2004 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): Jerome Moroy.
23   Contributor(s): ______________________________________.
24   
25   ---------------------------------------------------------------------
26   $Id: DefaultFractalIconProvider.java,v 1.3 2004/11/15 16:44:24 moroy Exp $
27   ====================================================================*/
28  
29  package org.objectweb.fractal.explorer.icon;
30  
31  import javax.swing.Icon  ;
32  
33  import org.objectweb.fractal.api.NoSuchInterfaceException;
34  import org.objectweb.fractal.api.control.LifeCycleController;
35  import org.objectweb.fractal.explorer.FcExplorer;
36  import org.objectweb.fractal.explorer.api.FractalIconProvider;
37  import org.objectweb.util.explorer.api.IconProvider;
38  import org.objectweb.util.explorer.swing.icon.StringIcon;
39  
40  /**
41   * Basic icon provider for fractal.
42   * @author <a HREF="mailto:Jerome.Moroy@lifl.fr">Jerome Moroy</a>
43   * @version 0.1
44   */
45  public abstract class DefaultFractalIconProvider 
46             implements IconProvider, 
47                        FractalIconProvider 
48  {
49      //==================================================================
50      //
51      // No internal state.
52      //
53      //==================================================================
54      
55      /** The icon displayed when the Fractal component is stopped. */
56      protected Icon   unknownIcon;
57      
58      //==================================================================
59      //
60      // No constructor.
61      // 
62      //==================================================================
63      
64      public DefaultFractalIconProvider() {
65          unknownIcon = new StringIcon("?");   
66      }
67      
68      //==================================================================
69      //
70      // Internal methods.
71      //
72      //==================================================================
73      
74      //==================================================================
75      //
76      // No public method.
77      //
78      //==================================================================
79      
80      /* (non-Javadoc)
81       * @see org.objectweb.util.explorer.api.IconProvider#newIcon(java.lang.Object)
82       */
83      public Object   newIcon(Object   object) {        
84          LifeCycleController lcc = null;
85          try{
86              lcc = FcExplorer.getLifeCycleController(FcExplorer.getComponent(object));
87          } catch(NoSuchInterfaceException e) {
88              try {
89                  return newStartedIcon(object);
90              } catch  (Exception   e1) {
91                  return newStoppedIcon(object);
92              }
93          }
94          if(lcc.getFcState().equals(LifeCycleController.STARTED))
95              return newStartedIcon(object);
96          else
97              return newStoppedIcon(object);
98      }
99      
100     /**
101      * Returns an icon which represents a question mark.
102      * @param object The object you want to find the associated icon.
103      * @return The associated icon.
104      */
105     public Object   newStoppedIcon(Object   object){
106         return unknownIcon;
107     }
108     
109     /**
110      * Called when the Fractal component is started.
111      * @param object The object you want to find the associated icon.
112      * @return The associated icon.
113      */
114     public abstract Object   newStartedIcon(Object   object);    
115 }
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