1 /* ====================================================================
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 2000 The Apache Software Foundation. All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
25 *
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>.
53 *
54 * Portions of this software are based upon public domain software
55 * originally written at the National Center for Supercomputing Applications,
56 * University of Illinois, Urbana-Champaign.
57 */
58 package com.bonevich.eclipse.cvsgrapher.editors;
59
60 import org.eclipse.draw2d.geometry.Dimension;
61 import org.eclipse.draw2d.geometry.Point;
62
63 import java.beans.PropertyChangeListener;
64 import java.beans.PropertyChangeSupport;
65
66 /***
67 * A view helper to separate the view information that would otherwise
68 * end up in the model objects. Generates graph events to be intercepted
69 * by the controller.
70 *
71 * @author jbonevic
72 */
73 public final class CvsGraphNodeViewHelper
74 {
75 public static final Point INITIAL_LOCATION = new Point(10,10);
76 public static final Dimension PREFERRED_SIZE = new Dimension(-1,-1);
77
78 private Point _location = INITIAL_LOCATION;
79
80 private transient PropertyChangeSupport _listeners = new PropertyChangeSupport(this);
81
82 public CvsGraphNodeViewHelper()
83 {
84 // System.out.println("[CvsGraphNodeViewHelper] helper new");
85 }
86
87 public void setLocation(Point iLocation)
88 {
89 _location = iLocation;
90 firePropertyChange("location", null, iLocation);
91 }
92
93 public Point getLocation()
94 {
95 // System.out.println("[CvsGraphNodeViewHelper] getLocation called");
96 return _location;
97 }
98
99 public void addPropertyChangeListener(PropertyChangeListener l)
100 {
101 _listeners.addPropertyChangeListener(l);
102 }
103
104 public void removePropertyChangeListener(PropertyChangeListener l)
105 {
106 _listeners.removePropertyChangeListener(l);
107 }
108
109 protected void firePropertyChange(String prop, Object old, Object newValue)
110 {
111 // System.out.println("[CvsGraphNodeViewHelper] firing prop change: " + prop);
112 _listeners.firePropertyChange(prop, old, newValue);
113 }
114
115
116 }
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