| /* ScrollPaneAdjustable.java -- Scrollbars for a ScrollPane |
| Copyright (C) 1999 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package java.awt; |
| |
| import java.awt.event.AdjustmentListener; |
| import java.io.Serializable; |
| |
| /** |
| * Need this class since the serialization spec for ScrollPane |
| * uses it. |
| * |
| * @author Aaron M. Renn (arenn@urbanophile.com) |
| * @since 1.4 |
| */ |
| public class ScrollPaneAdjustable |
| implements Adjustable, Serializable |
| { |
| private static final long serialVersionUID = -3359745691033257079L; |
| |
| ScrollPane sp; |
| int orientation; |
| int value; |
| int minimum; |
| int maximum; |
| int visibleAmount; |
| int unitIncrement = 1; |
| int blockIncrement = 1; |
| AdjustmentListener adjustmentListener; |
| |
| private transient boolean valueIsAdjusting = false; |
| |
| ScrollPaneAdjustable (ScrollPane sp, int orientation) |
| { |
| this.sp = sp; |
| this.orientation = orientation; |
| } |
| |
| ScrollPaneAdjustable (ScrollPane sp, int orientation, int value, int minimum, |
| int maximum, int visibleAmount, int unitIncrement, |
| int blockIncrement) |
| { |
| this.sp = sp; |
| this.orientation = orientation; |
| this.value = value; |
| this.minimum = minimum; |
| this.maximum = maximum; |
| this.visibleAmount = visibleAmount; |
| this.unitIncrement = unitIncrement; |
| this.blockIncrement = blockIncrement; |
| } |
| |
| public void addAdjustmentListener (AdjustmentListener listener) |
| { |
| if (listener == null) |
| return; |
| adjustmentListener = AWTEventMulticaster.add (adjustmentListener, listener); |
| } |
| |
| public void removeAdjustmentListener (AdjustmentListener listener) |
| { |
| if (listener == null) |
| return; |
| adjustmentListener = AWTEventMulticaster.remove (adjustmentListener, listener); |
| } |
| |
| public AdjustmentListener[] getAdjustmentListeners () |
| { |
| return (AdjustmentListener[]) AWTEventMulticaster.getListeners |
| (adjustmentListener, AdjustmentListener.class); |
| } |
| |
| public int getBlockIncrement () |
| { |
| return blockIncrement; |
| } |
| |
| public int getMaximum () |
| { |
| return maximum; |
| } |
| |
| public int getMinimum () |
| { |
| return minimum; |
| } |
| |
| public int getOrientation () |
| { |
| return orientation; |
| } |
| |
| public int getUnitIncrement () |
| { |
| return unitIncrement; |
| } |
| |
| public int getValue () |
| { |
| return value; |
| } |
| |
| public int getVisibleAmount () |
| { |
| return visibleAmount; |
| } |
| |
| public void setBlockIncrement (int blockIncrement) |
| { |
| this.blockIncrement = blockIncrement; |
| } |
| |
| public void setMaximum (int maximum) |
| { |
| this.maximum = maximum; |
| } |
| |
| public void setMinimum (int minimum) |
| { |
| this.minimum = minimum; |
| } |
| |
| public void setUnitIncrement (int unitIncrement) |
| { |
| this.unitIncrement = unitIncrement; |
| } |
| |
| public void setValue (int value) |
| { |
| this.value = value; |
| |
| if (value < minimum) |
| minimum = value; |
| |
| if (value > maximum) |
| maximum = value; |
| } |
| |
| public void setVisibleAmount (int visibleAmount) |
| { |
| this.visibleAmount = visibleAmount; |
| } |
| |
| public String paramString () |
| { |
| return ("scrollpane=" + sp + ", orientation=" + orientation |
| + ", value=" + value + ", minimum=" + minimum |
| + ", maximum=" + maximum + ", visibleAmount=" + visibleAmount |
| + ", unitIncrement=" + unitIncrement |
| + ", blockIncrement=" + blockIncrement); |
| } |
| |
| public String toString() |
| { |
| return getClass().getName() + "[" + paramString() + "]"; |
| } |
| |
| /** |
| * Returns true if the value is in the process of changing. |
| * |
| * @since 1.4 |
| */ |
| public boolean getValueIsAdjusting () |
| { |
| return valueIsAdjusting; |
| } |
| |
| /** |
| * Sets the value of valueIsAdjusting. |
| * |
| * @since 1.4 |
| */ |
| public void setValueIsAdjusting (boolean valueIsAdjusting) |
| { |
| this.valueIsAdjusting = valueIsAdjusting; |
| } |
| } // class ScrollPaneAdjustable |
| |