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Java > Open Source Codes > org > netbeans > lib > editor > view > GapDocumentViewChildren


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 1997-2006 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19
20 package org.netbeans.lib.editor.view;
21
22 import java.awt.Component JavaDoc;
23 import java.awt.Graphics JavaDoc;
24 import java.awt.Rectangle JavaDoc;
25 import java.awt.Shape JavaDoc;
26 import javax.swing.event.DocumentEvent JavaDoc;
27 import javax.swing.text.AbstractDocument JavaDoc;
28 import javax.swing.text.AttributeSet JavaDoc;
29 import javax.swing.text.BadLocationException JavaDoc;
30 import javax.swing.text.Element JavaDoc;
31 import javax.swing.text.LayoutQueue JavaDoc;
32 import javax.swing.text.Position JavaDoc;
33 import javax.swing.text.StyleConstants JavaDoc;
34 import javax.swing.text.Utilities JavaDoc;
35 import javax.swing.text.View JavaDoc;
36 import javax.swing.text.ViewFactory JavaDoc;
37 import org.netbeans.editor.view.spi.ViewLayoutState;
38
39 //import org.netbeans.spi.lexer.util.GapObjectArray;
40
41 /**
42  * Maintainer of the children of the {@link GapBoxView}.
43  * <br>
44  * It also acts as a runnable task for flushing requirement
45  * changes of the view it works for.
46  *
47  * Besides the current implementation there could be
48  * an implementation for small number of children (e.g. up to 20)
49  * which would not have to use index gap and which would use indexes
50  * &lt;= 127 that could be merged into shorts by pairs.
51  * This approach could save about 40 bytes.
52  * <br>
53  * However the GapBoxView is able to unload its children
54  * dynamically which can save much more memory
55  * than the described simplified implementation.
56  *
57  * @author Miloslav Metelka
58  * @version 1.00
59  */
60
61 class GapDocumentViewChildren extends GapBoxViewChildren {
62
63     GapDocumentViewChildren(GapBoxView view) {
64         super(view);
65     }
66
67 }
68
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