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Java > Open Source Codes > org > armedbear > j > VerticalScrollBar


1 /*
2  * VerticalScrollBar.java
3  *
4  * Copyright (C) 2000-2002 Peter Graves
5  * $Id: VerticalScrollBar.java,v 1.1.1.1 2002/09/24 16:08:07 piso Exp $
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20  */
21
22 package org.armedbear.j;
23
24 import javax.swing.JScrollBar JavaDoc;
25
26 public final class VerticalScrollBar extends JScrollBar JavaDoc
27 {
28     private Editor editor;
29     private Display display;
30
31     public VerticalScrollBar(Editor editor)
32     {
33         super();
34         this.editor = editor;
35         display = editor.getDisplay();
36     }
37
38     public final int getUnitIncrement(int direction)
39     {
40         return display.getCharHeight() * editor.getBuffer().getIntegerProperty(Property.VERTICAL_SCROLL_INCREMENT);
41     }
42
43     public final int getBlockIncrement(int direction)
44     {
45         return display.getHeight();
46     }
47 }
48
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