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Java > Open Source Codes > org > netbeans > modules > xml > xam > ui > highlight > DefaultHighlightManager


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19
20 package org.netbeans.modules.xml.xam.ui.highlight;
21
22 import java.util.Iterator JavaDoc;
23 import java.util.List JavaDoc;
24 import java.util.Map JavaDoc;
25 import java.util.Set JavaDoc;
26
27 /**
28  * A default implementation of HighlightManager.
29  *
30  * @author Nathan Fiedler
31  */
32 public class DefaultHighlightManager extends HighlightManager {
33
34     /**
35      * Creates a new instance of DefaultHighlightManager.
36      */
37     public DefaultHighlightManager() {
38     }
39
40     protected void hideHighlights(HighlightGroup group) {
41         hideOrShow(group, false);
42         group.setShowing(false);
43     }
44
45     /**
46      * Shows or hides the given group of highlights.
47      *
48      * @param group highlight group to show or hide.
49      * @param show true to show, false to hide.
50      */
51     private void hideOrShow(HighlightGroup group, boolean show) {
52         Map JavaDoc<Highlighted, List JavaDoc<Highlight>> map = findListeners(group);
53         Set JavaDoc<Map.Entry JavaDoc<Highlighted, List JavaDoc<Highlight>>> entries = map.entrySet();
54         Iterator JavaDoc<Map.Entry JavaDoc<Highlighted, List JavaDoc<Highlight>>> iter = entries.iterator();
55         while (iter.hasNext()) {
56             Map.Entry JavaDoc<Highlighted, List JavaDoc<Highlight>> entry = iter.next();
57             Highlighted listener = entry.getKey();
58             List JavaDoc<Highlight> lights = entry.getValue();
59             for (Highlight light : lights) {
60                 if (show) {
61                     listener.highlightAdded(light);
62                 } else {
63                     listener.highlightRemoved(light);
64                 }
65             }
66         }
67     }
68
69     protected void showHighlights(HighlightGroup group) {
70         group.setShowing(true);
71         hideOrShow(group, true);
72     }
73
74 }
75
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