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Java > Open Source Codes > HighlightArea


1 /*
2  * @(#)HighlightArea.java 1.14 05/11/17
3  *
4  * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are met:
8  *
9  * -Redistribution of source code must retain the above copyright notice, this
10  * list of conditions and the following disclaimer.
11  *
12  * -Redistribution in binary form must reproduce the above copyright notice,
13  * this list of conditions and the following disclaimer in the documentation
14  * and/or other materials provided with the distribution.
15  *
16  * Neither the name of Sun Microsystems, Inc. or the names of contributors may
17  * be used to endorse or promote products derived from this software without
18  * specific prior written permission.
19  *
20  * This software is provided "AS IS," without a warranty of any kind. ALL
21  * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
22  * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
23  * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
24  * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
25  * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
26  * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
27  * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
28  * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
29  * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
30  * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
31  *
32  * You acknowledge that this software is not designed, licensed or intended
33  * for use in the design, construction, operation or maintenance of any
34  * nuclear facility.
35  */
36
37 /*
38  * @(#)HighlightArea.java 1.14 05/11/17
39  */
40
41 import java.awt.Graphics JavaDoc;
42 import java.net.URL JavaDoc;
43 import java.net.MalformedURLException JavaDoc;
44
45 /**
46  * An area highlighting ImageArea class.
47  * This class extends the basic ImageArea Class to highlight an area of
48  * the base image when the mouse enters the area.
49  *
50  * @author Jim Graham
51  * @version 1.14, 11/17/05
52  */
53 class HighlightArea extends ImageMapArea {
54     int hlmode;
55     int hlpercent;
56
57     /**
58      * The argument string is the highlight mode to be used.
59      */
60     public void handleArg(String JavaDoc arg) {
61     if (arg == null) {
62         hlmode = parent.hlmode;
63         hlpercent = parent.hlpercent;
64     } else {
65         if (arg.startsWith("darker")) {
66         hlmode = parent.DARKER;
67         arg = arg.substring("darker".length());
68         } else {
69         hlmode = parent.BRIGHTER;
70         if (arg.startsWith("brighter")) {
71             arg = arg.substring("brighter".length());
72         }
73         }
74         hlpercent = Integer.parseInt(arg);
75     }
76     }
77
78     public void makeImages() {
79     setHighlight(parent.getHighlight(X, Y, W, H, hlmode, hlpercent));
80     }
81
82     public void highlight(Graphics JavaDoc g) {
83     if (entered) {
84         g.drawImage(hlImage, X, Y, this);
85     }
86     }
87
88     /**
89      * The area is repainted when the mouse enters.
90      */
91     public void enter() {
92     repaint();
93     }
94
95     /**
96      * The area is repainted when the mouse leaves.
97      */
98     public void exit() {
99     repaint();
100     }
101 }
102
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