Coverage details for net.sourceforge.demetrix.ui.CurrentlySelectedNodeSingleton

LineHitsSource
1 /*******************************************************************************
2  * Demetrix process modelling system
3  *
4  * Copyright (c) 2003, 2004 Dimitri A. Pissarenko
5  *
6  * This file is part of Demetrix.
7  *
8  * Demetrix is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2.1 of the License, or
11  * (at your option) any later version.
12  *
13  * Demetrix is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with Demetrix; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21  *
22  * For further information you may
23  *
24  * - send an e-mail in Russian, German or English to dimitri.pissarenko@gmx.net
25  * - look at http://sourceforge.net/projects/demetrix/
26  * - look at http://demetrix.sourceforge.net/
27  * - look at http://members.inode.at/d.pissarenko/
28  *
29  *****************************************************************************/
30  
31 package net.sourceforge.demetrix.ui;
32  
33 import java.util.Iterator;
34  
35 import java.util.Vector;
36  
37 import org.jgraph.graph.DefaultGraphCell;
38  
39 /**
40  * @author Dimitri Pissarenko
41  *
42  */
43  
44 public class CurrentlySelectedNodeSingleton {
45  
46     private static CurrentlySelectedNodeSingleton instance;
47  
48     private DefaultGraphCell currentlySelectedNode;
49     private Object[] currentlySelectedCells;
50  
51     private Vector observers;
52  
536    public CurrentlySelectedNodeSingleton() {
54  
556        this.observers = new Vector();
56  
576    }
58  
59     public static CurrentlySelectedNodeSingleton getInstance() {
60  
61569        if (instance == null) {
62  
636            instance = new CurrentlySelectedNodeSingleton();
64  
65         }
66  
67569        return instance;
68  
69     }
70  
71     public void attach(CurrentlySelectedNodeObserver observer) {
72  
7325        this.observers.add(observer);
74  
7525    }
76  
77     public DefaultGraphCell getCurrentlySelectedNode() {
78  
79281        return currentlySelectedNode;
80  
81     }
82  
83     public void setCurrentlySelectedNode(DefaultGraphCell cell) {
84  
85  
8625        this.currentlySelectedNode = cell;
87  
88  
8925    }
90     public void informCurrentlySelectedNodeChanged()
91     {
9226        Iterator iterator = null;
93  
9426        CurrentlySelectedNodeObserver observer = null;
95  
9626        iterator = this.observers.iterator();
97  
98169        while (iterator.hasNext()) {
99  
100143            observer = (CurrentlySelectedNodeObserver) iterator.next();
101  
102143            observer.currentlySelectedNodeChanged();
103  
104         }
105     
10626    }
107     /**
108      * @return
109      */
110     public Object[] getCurrentlySelectedCells() {
111193        return currentlySelectedCells;
112     }
113  
114     /**
115      * @param objects
116      */
117     public void setCurrentlySelectedCells(Object[] objects) {
11818        currentlySelectedCells = objects;
11918    }
120  
121 }

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