1 /* ScrollPaneAdjustable.java -- Scrollbars for a ScrollPane
2 Copyright (C) 1999 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
41 import java.awt.event.AdjustmentListener;
42 import java.io.Serializable;
45 * Need this class since the serialization spec for ScrollPane
48 * @author Aaron M. Renn (arenn@urbanophile.com)
51 public class ScrollPaneAdjustable
52 implements Adjustable, Serializable
54 private static final long serialVersionUID = -3359745691033257079L;
62 int unitIncrement = 1;
63 int blockIncrement = 1;
64 AdjustmentListener adjustmentListener;
66 private transient boolean valueIsAdjusting = false;
68 ScrollPaneAdjustable (ScrollPane sp, int orientation)
71 this.orientation = orientation;
74 ScrollPaneAdjustable (ScrollPane sp, int orientation, int value, int minimum,
75 int maximum, int visibleAmount, int unitIncrement,
79 this.orientation = orientation;
81 this.minimum = minimum;
82 this.maximum = maximum;
83 this.visibleAmount = visibleAmount;
84 this.unitIncrement = unitIncrement;
85 this.blockIncrement = blockIncrement;
88 public void addAdjustmentListener (AdjustmentListener listener)
90 AWTEventMulticaster.add (adjustmentListener, listener);
93 public void removeAdjustmentListener (AdjustmentListener listener)
95 AWTEventMulticaster.remove (adjustmentListener, listener);
98 public AdjustmentListener[] getAdjustmentListeners ()
100 return (AdjustmentListener[]) AWTEventMulticaster.getListeners
101 (adjustmentListener, AdjustmentListener.class);
104 public int getBlockIncrement ()
106 return blockIncrement;
109 public int getMaximum ()
114 public int getMinimum ()
119 public int getOrientation ()
124 public int getUnitIncrement ()
126 return unitIncrement;
129 public int getValue ()
134 public int getVisibleAmount ()
136 return visibleAmount;
139 public void setBlockIncrement (int blockIncrement)
141 this.blockIncrement = blockIncrement;
144 public void setMaximum (int maximum)
146 this.maximum = maximum;
149 public void setMinimum (int minimum)
151 this.minimum = minimum;
154 public void setUnitIncrement (int unitIncrement)
156 this.unitIncrement = unitIncrement;
159 public void setValue (int value)
170 public void setVisibleAmount (int visibleAmount)
172 this.visibleAmount = visibleAmount;
175 public String paramString ()
177 throw new Error ("not implemented");
181 * Returns true if the value is in the process of changing.
185 public boolean getValueIsAdjusting ()
187 return valueIsAdjusting;
191 * Sets the value of valueIsAdjusting.
195 public void setValueIsAdjusting (boolean valueIsAdjusting)
197 this.valueIsAdjusting = valueIsAdjusting;
199 } // class ScrollPaneAdjustable