svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.mapcontext / org.gvsig.fmap.mapcontext.api / src / main / java / org / gvsig / fmap / mapcontext / layers / LayerChangeSupport.java @ 40559
History | View | Annotate | Download (2.32 KB)
1 |
/**
|
---|---|
2 |
* gvSIG. Desktop Geographic Information System.
|
3 |
*
|
4 |
* Copyright (C) 2007-2013 gvSIG Association.
|
5 |
*
|
6 |
* This program is free software; you can redistribute it and/or
|
7 |
* modify it under the terms of the GNU General Public License
|
8 |
* as published by the Free Software Foundation; either version 3
|
9 |
* of the License, or (at your option) any later version.
|
10 |
*
|
11 |
* This program is distributed in the hope that it will be useful,
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
14 |
* GNU General Public License for more details.
|
15 |
*
|
16 |
* You should have received a copy of the GNU General Public License
|
17 |
* along with this program; if not, write to the Free Software
|
18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
19 |
* MA 02110-1301, USA.
|
20 |
*
|
21 |
* For any additional information, do not hesitate to contact us
|
22 |
* at info AT gvsig.com, or visit our website www.gvsig.com.
|
23 |
*/
|
24 |
package org.gvsig.fmap.mapcontext.layers; |
25 |
|
26 |
import java.util.ArrayList; |
27 |
import java.util.Iterator; |
28 |
|
29 |
import org.gvsig.fmap.mapcontext.rendering.legend.events.LegendChangedEvent; |
30 |
import org.gvsig.fmap.mapcontext.rendering.legend.events.listeners.LegendListener; |
31 |
|
32 |
|
33 |
|
34 |
/**
|
35 |
* <p>Manages all legend listeners of a layer, notifying them any legend change event produced.</p>
|
36 |
*
|
37 |
* @author Vicente Caballero Navarro
|
38 |
*/
|
39 |
public class LayerChangeSupport { |
40 |
/**
|
41 |
* <p>The legend listeners of a layer.</p>
|
42 |
*/
|
43 |
private ArrayList listeners = new ArrayList(); |
44 |
|
45 |
/**
|
46 |
* <p>Registers a <code>LegendListener</code>.</p>
|
47 |
*
|
48 |
* @param listener the legend listener
|
49 |
*/
|
50 |
public void addLayerListener(LegendListener listener) { |
51 |
listeners.add(listener); |
52 |
} |
53 |
|
54 |
/**
|
55 |
* <p>Removes a registered <code>LegendListener</code>.</p>
|
56 |
*
|
57 |
* @param listener the legend listener
|
58 |
*/
|
59 |
public void removeLayerListener(LegendListener listener) { |
60 |
listeners.remove(listener); |
61 |
} |
62 |
|
63 |
/**
|
64 |
* <p>Notifies a legend change to all legend listeners registered.</p>
|
65 |
*
|
66 |
* @param e a legend event with the new legend and events that compound this one
|
67 |
*/
|
68 |
public void callLegendChanged(LegendChangedEvent e) { |
69 |
for (Iterator iter = listeners.iterator(); iter.hasNext();) { |
70 |
LegendListener listener = (LegendListener) iter.next(); |
71 |
|
72 |
listener.legendChanged(e); |
73 |
} |
74 |
} |
75 |
} |