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jlechner |
/* JSlider.java --
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Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing;
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import java.awt.Dimension;
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import java.awt.MenuContainer;
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import java.awt.image.ImageObserver;
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import java.beans.PropertyChangeEvent;
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import java.io.Serializable;
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import java.util.Dictionary;
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import java.util.Enumeration;
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import java.util.Hashtable;
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import javax.accessibility.Accessible;
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import javax.accessibility.AccessibleContext;
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import javax.accessibility.AccessibleRole;
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import javax.accessibility.AccessibleStateSet;
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import javax.accessibility.AccessibleValue;
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import javax.swing.event.ChangeEvent;
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import javax.swing.event.ChangeListener;
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import javax.swing.plaf.SliderUI;
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/**
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* The JSlider is a Swing component that allows selection of a value within a
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* range by adjusting a thumb in a track. The values for the minimum,
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* maximum, extent and value are stored in a {@link
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* DefaultBoundedRangeModel}.
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*
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* <p>
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* JSliders have the following properties:
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* </p>
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*
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* <table>
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* <tr><th> Property </th><th> Stored in </th><th> Bound? </th></tr>
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* <tr><td> extent </td><td> model </td><td> no </td></tr>
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* <tr><td> inverted </td><td> slider </td><td> yes </td></tr>
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* <tr><td> labelTable </td><td> slider </td><td> yes </td></tr>
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* <tr><td> majorTickSpacing </td><td> slider </td><td> yes </td></tr>
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* <tr><td> maximum </td><td> model </td><td> no </td></tr>
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* <tr><td> minimum </td><td> model </td><td> no </td></tr>
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* <tr><td> minorTickSpacing </td><td> slider </td><td> yes </td></tr>
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* <tr><td> model </td><td> slider </td><td> yes </td></tr>
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* <tr><td> orientation </td><td> slider </td><td> yes </td></tr>
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* <tr><td> paintLabels </td><td> slider </td><td> yes </td></tr>
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* <tr><td> paintTicks </td><td> slider </td><td> yes </td></tr>
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* <tr><td> snapToTicks </td><td> slider </td><td> no </td></tr>
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* <tr><td> value </td><td> model </td><td> no </td></tr>
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* <tr><td> valueIsAdjusting </td><td> model </td><td> no </td></tr>
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* </table>
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*
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* <p>
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* The various behavioral aspects of these properties follows:
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* </p>
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*
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* <ul>
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* <li>
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* When non-bound properties stored in the slider change, the slider fires
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* ChangeEvents to its ChangeListeners.
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* </li>
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* <li>
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* When bound properties stored in the slider change, the slider fires
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* PropertyChangeEvents to its PropertyChangeListeners
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* </li>
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* <li>
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* If any of the model's properties change, it fires a ChangeEvent to its
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* ChangeListeners, which include the slider.
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* </li>
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* <li>
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* If the slider receives a ChangeEvent from its model, it will propagate the
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* ChangeEvent to its ChangeListeners, with the ChangeEvent's "source"
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* property set to refer to the slider, rather than the model.
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* </li>
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* </ul>
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*/
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public class JSlider extends JComponent implements SwingConstants, Accessible,
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ImageObserver,
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MenuContainer, Serializable
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{
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/** DOCUMENT ME! */
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private static final long serialVersionUID = -1441275936141218479L;
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/**
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* DOCUMENT ME!
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*/
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// FIXME: This inner class is a complete stub and needs to be implemented
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// properly.
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protected class AccessibleJSlider extends JComponent.AccessibleJComponent
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implements AccessibleValue
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{
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private static final long serialVersionUID = -6301740148041106789L;
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/**
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* Creates a new AccessibleJSlider object.
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*/
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protected AccessibleJSlider()
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{
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// Nothing to do here.
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}
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/**
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public AccessibleStateSet getAccessibleStateSet()
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{
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return null;
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}
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/**
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public AccessibleRole getAccessibleRole()
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{
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return null;
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}
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/**
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public AccessibleValue getAccessibleValue()
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{
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return null;
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}
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/**
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public Number getCurrentAccessibleValue()
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{
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return null;
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}
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/**
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* setCurrentAccessibleValue
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*
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* @param value0 TODO
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*
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* @return boolean
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*/
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public boolean setCurrentAccessibleValue(Number value0)
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{
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return false;
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}
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/**
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* getMinimumAccessibleValue
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*
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* @return Number
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*/
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public Number getMinimumAccessibleValue()
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{
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return null;
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}
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/**
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* getMaximumAccessibleValue
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*
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* @return Number
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*/
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public Number getMaximumAccessibleValue()
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{
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return null;
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}
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}
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/** Whether or not this slider paints its ticks. */
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private transient boolean paintTicks = false;
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/** Whether or not this slider paints its track. */
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private transient boolean paintTrack = true;
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/** Whether or not this slider paints its labels. */
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private transient boolean paintLabels = false;
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/**
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* A dictionary of (Integer, Component) pairs where each Component is a
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* JLabel and the Integer determines where the label will be painted.
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*/
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private transient Dictionary labelTable;
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/** The model used to describe the slider. */
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protected BoundedRangeModel sliderModel;
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/** The space between major ticks. */
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protected int majorTickSpacing;
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/** The space between minor ticks. */
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protected int minorTickSpacing;
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/** Whether the slider snaps its values to ticks. */
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protected boolean snapToTicks = false;
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/** The orientation of the slider. */
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protected int orientation = HORIZONTAL;
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/** Whether the slider is inverted. */
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private transient boolean isInverted;
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/** The ChangeListener that listens to the model. */
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protected ChangeListener changeListener;
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/** The ChangeEvent that is passed to all listeners of this slider. */
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protected transient ChangeEvent changeEvent;
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/**
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* Creates a new horizontal JSlider object with a minimum of 0, a maximum of
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* 100, and a value of 50.
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*/
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public JSlider()
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{
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this(HORIZONTAL, 0, 100, 50);
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}
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/**
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* Creates a new JSlider object with the given orientation and a minimum of
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* 0, a maximum of 100, and a value of 50.
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*
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* @param orientation The orientation of the slider ({@link #HORIZONTAL} or
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* {@link #VERTICAL}).
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*
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* @throws IllegalArgumentException if <code>orientation</code> is not one of
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* the specified values.
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*/
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public JSlider(int orientation)
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{
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this(orientation, 0, 100, 50);
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}
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/**
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* Creates a new horizontal JSlider object with the given maximum and
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* minimum and a value that is halfway between the minimum and the
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* maximum.
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*
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* @param minimum The minimum value of the JSlider.
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* @param maximum The maximum value of the JSlider.
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*/
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public JSlider(int minimum, int maximum)
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{
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this(HORIZONTAL, minimum, maximum, (maximum + minimum) / 2);
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}
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/**
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* Creates a new horizontal JSlider object with the given minimum, maximum,
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* and value.
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*
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* @param minimum The minimum value of the JSlider.
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* @param maximum The maximum value of the JSlider.
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* @param value The initial value of the JSlider.
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*/
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public JSlider(int minimum, int maximum, int value)
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{
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this(HORIZONTAL, minimum, maximum, value);
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}
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/**
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* Creates a new JSlider object with the given orientation, minimum,
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* maximum, and value.
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*
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* @param orientation The orientation of the slider ({@link #HORIZONTAL} or
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* {@link #VERTICAL}).
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* @param minimum The minimum value of the JSlider.
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* @param maximum The maximum value of the JSlider.
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* @param value The initial value of the JSlider.
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*
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* @throws IllegalArgumentException if <code>orientation</code> is not one of
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* the specified values.
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*/
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public JSlider(int orientation, int minimum, int maximum, int value)
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{
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sliderModel = new DefaultBoundedRangeModel(value, 0, minimum, maximum);
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if (orientation != HORIZONTAL && orientation != VERTICAL)
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throw new IllegalArgumentException(orientation + " is not a legal orientation");
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this.orientation = orientation;
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changeListener = createChangeListener();
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sliderModel.addChangeListener(changeListener);
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updateUI();
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}
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/**
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* Creates a new horizontal JSlider object with the given model.
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*
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* @param model The model (<code>null</code> not permitted).
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*
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* @throws NullPointerException if <code>model</code> is <code>null</code>.
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*/
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public JSlider(BoundedRangeModel model)
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{
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sliderModel = model;
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changeListener = createChangeListener();
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sliderModel.addChangeListener(changeListener);
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updateUI();
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}
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/**
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* This method returns the current value of the slider.
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*
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* @return The value of the slider stored in the model.
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*/
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public int getValue()
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{
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return sliderModel.getValue();
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}
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/**
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* This method sets the value of the slider.
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*
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* @param value The slider's new value.
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*/
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public void setValue(int value)
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{
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sliderModel.setValue(value);
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}
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/**
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* This method returns the slider's UI delegate.
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*
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* @return The slider's UI delegate.
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*/
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public SliderUI getUI()
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{
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return (SliderUI) ui;
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}
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/**
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* This method sets the slider's UI delegate.
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*
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* @param ui A SliderUI object to use with this slider.
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*/
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public void setUI(SliderUI ui)
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{
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super.setUI(ui);
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}
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/**
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* This method sets this slider's UI to the UIManager's default for the
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* current look and feel.
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*/
|
381 |
|
|
public void updateUI()
|
382 |
|
|
{
|
383 |
|
|
setUI((SliderUI) UIManager.getUI(this));
|
384 |
|
|
invalidate();
|
385 |
|
|
repaint();
|
386 |
|
|
}
|
387 |
|
|
|
388 |
|
|
/**
|
389 |
|
|
* This method returns a name to identify which look and feel class will be
|
390 |
|
|
* the UI delegate for the slider.
|
391 |
|
|
*
|
392 |
|
|
* @return The Look and Feel classID. "SliderUI"
|
393 |
|
|
*/
|
394 |
|
|
public String getUIClassID()
|
395 |
|
|
{
|
396 |
|
|
return "SliderUI";
|
397 |
|
|
}
|
398 |
|
|
|
399 |
|
|
/**
|
400 |
|
|
* Creates a ChangeListener for this Slider.
|
401 |
|
|
*
|
402 |
|
|
* @return A new ChangeListener.
|
403 |
|
|
*/
|
404 |
|
|
protected ChangeListener createChangeListener()
|
405 |
|
|
{
|
406 |
|
|
return new ChangeListener()
|
407 |
|
|
{
|
408 |
|
|
public void stateChanged(ChangeEvent ce)
|
409 |
|
|
{
|
410 |
|
|
// No need to trigger a repaint since the UI listens to the model
|
411 |
|
|
// as well. All we need to do is pass on the stateChanged event
|
412 |
|
|
// to our listeners.
|
413 |
|
|
fireStateChanged();
|
414 |
|
|
}
|
415 |
|
|
};
|
416 |
|
|
}
|
417 |
|
|
|
418 |
|
|
/**
|
419 |
|
|
* This method registers a listener to this slider. The listener will be
|
420 |
|
|
* informed of new ChangeEvents.
|
421 |
|
|
*
|
422 |
|
|
* @param listener The listener to register.
|
423 |
|
|
*/
|
424 |
|
|
public void addChangeListener(ChangeListener listener)
|
425 |
|
|
{
|
426 |
|
|
listenerList.add(ChangeListener.class, listener);
|
427 |
|
|
}
|
428 |
|
|
|
429 |
|
|
/**
|
430 |
|
|
* This method removes a listener from this slider.
|
431 |
|
|
*
|
432 |
|
|
* @param listener The listener to remove.
|
433 |
|
|
*/
|
434 |
|
|
public void removeChangeListener(ChangeListener listener)
|
435 |
|
|
{
|
436 |
|
|
listenerList.remove(ChangeListener.class, listener);
|
437 |
|
|
}
|
438 |
|
|
|
439 |
|
|
/**
|
440 |
|
|
* This method is called whenever the model fires a ChangeEvent. It should
|
441 |
|
|
* propagate the ChangeEvent to its listeners with a new ChangeEvent that
|
442 |
|
|
* identifies the slider as the source.
|
443 |
|
|
*/
|
444 |
|
|
protected void fireStateChanged()
|
445 |
|
|
{
|
446 |
|
|
Object[] changeListeners = listenerList.getListenerList();
|
447 |
|
|
if (changeEvent == null)
|
448 |
|
|
changeEvent = new ChangeEvent(this);
|
449 |
|
|
for (int i = changeListeners.length - 2; i >= 0; i -= 2)
|
450 |
|
|
{
|
451 |
|
|
if (changeListeners[i] == ChangeListener.class)
|
452 |
|
|
((ChangeListener) changeListeners[i + 1]).stateChanged(changeEvent);
|
453 |
|
|
}
|
454 |
|
|
}
|
455 |
|
|
|
456 |
|
|
/**
|
457 |
|
|
* This method returns an array of all ChangeListeners listening to this
|
458 |
|
|
* slider.
|
459 |
|
|
*
|
460 |
|
|
* @return An array of ChangeListeners listening to this slider.
|
461 |
|
|
*/
|
462 |
|
|
public ChangeListener[] getChangeListeners()
|
463 |
|
|
{
|
464 |
|
|
return (ChangeListener[]) listenerList.getListeners(ChangeListener.class);
|
465 |
|
|
}
|
466 |
|
|
|
467 |
|
|
/**
|
468 |
|
|
* This method returns the model of the slider.
|
469 |
|
|
*
|
470 |
|
|
* @return The slider's model.
|
471 |
|
|
*/
|
472 |
|
|
public BoundedRangeModel getModel()
|
473 |
|
|
{
|
474 |
|
|
return sliderModel;
|
475 |
|
|
}
|
476 |
|
|
|
477 |
|
|
/**
|
478 |
|
|
* This method changes the "model" property. It also needs to unregister
|
479 |
|
|
* any listeners to the old model and register any listeners to the new
|
480 |
|
|
* model.
|
481 |
|
|
*
|
482 |
|
|
* @param model The model to use with the slider.
|
483 |
|
|
*/
|
484 |
|
|
public void setModel(BoundedRangeModel model)
|
485 |
|
|
{
|
486 |
|
|
// I didn't do the null pointer check on purpose.
|
487 |
|
|
// If you try it with Sun's, it'll go ahead and set it to null
|
488 |
|
|
// and bork the next time it tries to access the model.
|
489 |
|
|
if (model != sliderModel)
|
490 |
|
|
{
|
491 |
|
|
BoundedRangeModel oldModel = sliderModel;
|
492 |
|
|
sliderModel = model;
|
493 |
|
|
oldModel.removeChangeListener(changeListener);
|
494 |
|
|
sliderModel.addChangeListener(changeListener);
|
495 |
|
|
firePropertyChange("model", oldModel, sliderModel);
|
496 |
|
|
}
|
497 |
|
|
}
|
498 |
|
|
|
499 |
|
|
/**
|
500 |
|
|
* This method returns the minimum value of the slider.
|
501 |
|
|
*
|
502 |
|
|
* @return The minimum value of the slider.
|
503 |
|
|
*/
|
504 |
|
|
public int getMinimum()
|
505 |
|
|
{
|
506 |
|
|
return sliderModel.getMinimum();
|
507 |
|
|
}
|
508 |
|
|
|
509 |
|
|
/**
|
510 |
|
|
* This method sets the minimum value of the slider.
|
511 |
|
|
*
|
512 |
|
|
* @param minimum The minimum value of the slider.
|
513 |
|
|
*/
|
514 |
|
|
public void setMinimum(int minimum)
|
515 |
|
|
{
|
516 |
|
|
int old = sliderModel.getMinimum();
|
517 |
|
|
sliderModel.setMinimum(minimum);
|
518 |
|
|
if (minimum != old)
|
519 |
|
|
firePropertyChange("minimum", old, minimum);
|
520 |
|
|
}
|
521 |
|
|
|
522 |
|
|
/**
|
523 |
|
|
* This method returns the maximum value of the slider.
|
524 |
|
|
*
|
525 |
|
|
* @return The maximum value of the slider.
|
526 |
|
|
*/
|
527 |
|
|
public int getMaximum()
|
528 |
|
|
{
|
529 |
|
|
return sliderModel.getMaximum();
|
530 |
|
|
}
|
531 |
|
|
|
532 |
|
|
/**
|
533 |
|
|
* This method sets the maximum value of the slider.
|
534 |
|
|
*
|
535 |
|
|
* @param maximum The maximum value of the slider.
|
536 |
|
|
*/
|
537 |
|
|
public void setMaximum(int maximum)
|
538 |
|
|
{
|
539 |
|
|
int old = sliderModel.getMaximum();
|
540 |
|
|
sliderModel.setMaximum(maximum);
|
541 |
|
|
if (maximum != old)
|
542 |
|
|
firePropertyChange("maximum", old, maximum);
|
543 |
|
|
}
|
544 |
|
|
|
545 |
|
|
/**
|
546 |
|
|
* This method returns this slider's isAdjusting value which is true if the
|
547 |
|
|
* thumb is being dragged.
|
548 |
|
|
*
|
549 |
|
|
* @return The slider's isAdjusting value.
|
550 |
|
|
*/
|
551 |
|
|
public boolean getValueIsAdjusting()
|
552 |
|
|
{
|
553 |
|
|
return sliderModel.getValueIsAdjusting();
|
554 |
|
|
}
|
555 |
|
|
|
556 |
|
|
/**
|
557 |
|
|
* This method sets the isAdjusting value for the slider.
|
558 |
|
|
*
|
559 |
|
|
* @param adjusting The slider's isAdjusting value.
|
560 |
|
|
*/
|
561 |
|
|
public void setValueIsAdjusting(boolean adjusting)
|
562 |
|
|
{
|
563 |
|
|
sliderModel.setValueIsAdjusting(adjusting);
|
564 |
|
|
}
|
565 |
|
|
|
566 |
|
|
/**
|
567 |
|
|
* This method returns the extent value for this slider.
|
568 |
|
|
*
|
569 |
|
|
* @return The extent value for this slider.
|
570 |
|
|
*/
|
571 |
|
|
public int getExtent()
|
572 |
|
|
{
|
573 |
|
|
return sliderModel.getExtent();
|
574 |
|
|
}
|
575 |
|
|
|
576 |
|
|
/**
|
577 |
|
|
* This method sets the extent value for this slider.
|
578 |
|
|
*
|
579 |
|
|
* @param extent The extent value for this slider.
|
580 |
|
|
*/
|
581 |
|
|
public void setExtent(int extent)
|
582 |
|
|
{
|
583 |
|
|
sliderModel.setExtent(extent);
|
584 |
|
|
}
|
585 |
|
|
|
586 |
|
|
/**
|
587 |
|
|
* This method returns the slider orientation.
|
588 |
|
|
*
|
589 |
|
|
* @return The orientation of the slider.
|
590 |
|
|
*/
|
591 |
|
|
public int getOrientation()
|
592 |
|
|
{
|
593 |
|
|
return orientation;
|
594 |
|
|
}
|
595 |
|
|
|
596 |
|
|
/**
|
597 |
|
|
* This method changes the "orientation" property of this slider. If the
|
598 |
|
|
* orientation is not VERTICAL or HORIZONTAL, this method does nothing.
|
599 |
|
|
*
|
600 |
|
|
* @param orientation The orientation of this slider.
|
601 |
|
|
*/
|
602 |
|
|
public void setOrientation(int orientation)
|
603 |
|
|
{
|
604 |
|
|
if (orientation != VERTICAL && orientation != HORIZONTAL)
|
605 |
|
|
throw new IllegalArgumentException("orientation must be one of: VERTICAL, HORIZONTAL");
|
606 |
|
|
if (orientation != this.orientation)
|
607 |
|
|
{
|
608 |
|
|
int oldOrientation = this.orientation;
|
609 |
|
|
this.orientation = orientation;
|
610 |
|
|
firePropertyChange("orientation", oldOrientation,
|
611 |
|
|
this.orientation);
|
612 |
|
|
}
|
613 |
|
|
}
|
614 |
|
|
|
615 |
|
|
/**
|
616 |
|
|
* This method returns the label table for this slider.
|
617 |
|
|
*
|
618 |
|
|
* @return The label table for this slider.
|
619 |
|
|
*/
|
620 |
|
|
public Dictionary getLabelTable()
|
621 |
|
|
{
|
622 |
|
|
return labelTable;
|
623 |
|
|
}
|
624 |
|
|
|
625 |
|
|
/**
|
626 |
|
|
* This method changes the "labelTable" property of this slider.
|
627 |
|
|
*
|
628 |
|
|
* @param table The label table for this slider.
|
629 |
|
|
*/
|
630 |
|
|
public void setLabelTable(Dictionary table)
|
631 |
|
|
{
|
632 |
|
|
if (table != labelTable)
|
633 |
|
|
{
|
634 |
|
|
Dictionary oldTable = labelTable;
|
635 |
|
|
labelTable = table;
|
636 |
|
|
firePropertyChange("labelTable", oldTable, labelTable);
|
637 |
|
|
}
|
638 |
|
|
}
|
639 |
|
|
|
640 |
|
|
/**
|
641 |
|
|
* This method is called to reset UI delegates for the labels in the
|
642 |
|
|
* labelTable to a default for the current look and feel.
|
643 |
|
|
*/
|
644 |
|
|
protected void updateLabelUIs()
|
645 |
|
|
{
|
646 |
|
|
if (labelTable == null)
|
647 |
|
|
return;
|
648 |
|
|
for (Enumeration list = labelTable.elements(); list.hasMoreElements();)
|
649 |
|
|
{
|
650 |
|
|
JLabel label = (JLabel) list.nextElement();
|
651 |
|
|
label.updateUI();
|
652 |
|
|
}
|
653 |
|
|
}
|
654 |
|
|
|
655 |
|
|
/**
|
656 |
|
|
* Creates a hashtable of (Integer, JLabel) pairs that can be used as a
|
657 |
|
|
* label table for this slider. The labels will start from the sliders
|
658 |
|
|
* minimum and increase by the increment. Each label will have a text
|
659 |
|
|
* string indicating their integer value.
|
660 |
|
|
*
|
661 |
|
|
* @param increment The increment between labels (must be > 0).
|
662 |
|
|
*
|
663 |
|
|
* @return A hashtable with the labels and their keys.
|
664 |
|
|
*
|
665 |
|
|
* @throws IllegalArgumentException if <code>increment</code> is not greater
|
666 |
|
|
* than zero.
|
667 |
|
|
*/
|
668 |
|
|
public Hashtable createStandardLabels(int increment)
|
669 |
|
|
{
|
670 |
|
|
return createStandardLabels(increment, sliderModel.getMinimum());
|
671 |
|
|
}
|
672 |
|
|
|
673 |
|
|
/**
|
674 |
|
|
* Creates a hashtable of (Integer, JLabel) pairs that can be used as a
|
675 |
|
|
* label table for this slider. The labels will start from the given start
|
676 |
|
|
* value and increase by the increment. Each label will have a text string
|
677 |
|
|
* indicating its integer value.
|
678 |
|
|
*
|
679 |
|
|
* @param increment The increment between labels (must be > 0).
|
680 |
|
|
* @param start The value to start from.
|
681 |
|
|
*
|
682 |
|
|
* @return A hashtable with the labels and their keys.
|
683 |
|
|
*
|
684 |
|
|
* @throws IllegalArgumentException if <code>increment</code> is not greater
|
685 |
|
|
* than zero, or <code>start</code> is not within the range of the
|
686 |
|
|
* model.
|
687 |
|
|
*/
|
688 |
|
|
public Hashtable createStandardLabels(int increment, int start)
|
689 |
|
|
{
|
690 |
|
|
if (increment <= 0)
|
691 |
|
|
throw new IllegalArgumentException("Requires 'increment' > 0.");
|
692 |
|
|
if (start < getMinimum() || start > getMaximum())
|
693 |
|
|
throw new IllegalArgumentException("The 'start' value is out of range.");
|
694 |
|
|
Hashtable table = new Hashtable();
|
695 |
|
|
JLabel label;
|
696 |
|
|
Dimension dim;
|
697 |
|
|
|
698 |
|
|
int max = sliderModel.getMaximum();
|
699 |
|
|
|
700 |
|
|
for (int i = start; i <= max; i += increment)
|
701 |
|
|
{
|
702 |
|
|
label = new JLabel(String.valueOf(i));
|
703 |
|
|
label.setVerticalAlignment(CENTER);
|
704 |
|
|
label.setHorizontalAlignment(CENTER);
|
705 |
|
|
|
706 |
|
|
// Make sure these labels have the width and height
|
707 |
|
|
// they want.
|
708 |
|
|
dim = label.getPreferredSize();
|
709 |
|
|
label.setBounds(label.getX(), label.getY(),
|
710 |
|
|
(int) dim.getWidth(),
|
711 |
|
|
(int) dim.getHeight());
|
712 |
|
|
table.put(new Integer(i), label);
|
713 |
|
|
}
|
714 |
|
|
return table;
|
715 |
|
|
}
|
716 |
|
|
|
717 |
|
|
/**
|
718 |
|
|
* This method returns whether the slider is inverted. Horizontal sliders
|
719 |
|
|
* that are not inverted will have the minimums on the left. If they are
|
720 |
|
|
* inverted, the minimums will be on the right. Vertical sliders that are
|
721 |
|
|
* not inverted will have the minimums at the bottom. If they are inverted,
|
722 |
|
|
* the minimums will be at the top.
|
723 |
|
|
*
|
724 |
|
|
* @return Whether this slider is inverted.
|
725 |
|
|
*/
|
726 |
|
|
public boolean getInverted()
|
727 |
|
|
{
|
728 |
|
|
return isInverted;
|
729 |
|
|
}
|
730 |
|
|
|
731 |
|
|
/**
|
732 |
|
|
* This method changes the "inverted" property for this slider.Horizontal
|
733 |
|
|
* sliders that are not inverted will have the minimums on the left. If
|
734 |
|
|
* they are inverted, the minimums will be on the right. Vertical sliders
|
735 |
|
|
* that are not inverted will have the minimums at the bottom. If they are
|
736 |
|
|
* inverted, the minimums will be at the top. However, if the slider's
|
737 |
|
|
* componentOrientation is set to RIGHT_TO_LEFT, then everything gets
|
738 |
|
|
* reversed again.
|
739 |
|
|
*
|
740 |
|
|
* @param inverted Whether the slider should be inverted.
|
741 |
|
|
*/
|
742 |
|
|
public void setInverted(boolean inverted)
|
743 |
|
|
{
|
744 |
|
|
if (isInverted != inverted)
|
745 |
|
|
{
|
746 |
|
|
boolean oldInverted = isInverted;
|
747 |
|
|
isInverted = inverted;
|
748 |
|
|
firePropertyChange("inverted", oldInverted, isInverted);
|
749 |
|
|
}
|
750 |
|
|
}
|
751 |
|
|
|
752 |
|
|
/**
|
753 |
|
|
* This method returns the amount of units between each major tick mark.
|
754 |
|
|
*
|
755 |
|
|
* @return The amount of units between each major tick mark.
|
756 |
|
|
*/
|
757 |
|
|
public int getMajorTickSpacing()
|
758 |
|
|
{
|
759 |
|
|
return majorTickSpacing;
|
760 |
|
|
}
|
761 |
|
|
|
762 |
|
|
/**
|
763 |
|
|
* This method changes the "majorTickSpacing" property for this slider. The
|
764 |
|
|
* major tick spacing is the amount of units between each major tick mark.
|
765 |
|
|
*
|
766 |
|
|
* @param spacing The amount of units between each major tick mark.
|
767 |
|
|
*/
|
768 |
|
|
public void setMajorTickSpacing(int spacing)
|
769 |
|
|
{
|
770 |
|
|
if (majorTickSpacing != spacing)
|
771 |
|
|
{
|
772 |
|
|
int oldSpacing = majorTickSpacing;
|
773 |
|
|
majorTickSpacing = spacing;
|
774 |
|
|
firePropertyChange("majorTickSpacing", oldSpacing,
|
775 |
|
|
majorTickSpacing);
|
776 |
|
|
}
|
777 |
|
|
}
|
778 |
|
|
|
779 |
|
|
/**
|
780 |
|
|
* This method returns the amount of units between each minor tick mark.
|
781 |
|
|
*
|
782 |
|
|
* @return The amount of units between each minor tick mark.
|
783 |
|
|
*/
|
784 |
|
|
public int getMinorTickSpacing()
|
785 |
|
|
{
|
786 |
|
|
return minorTickSpacing;
|
787 |
|
|
}
|
788 |
|
|
|
789 |
|
|
/**
|
790 |
|
|
* This method changes the "minorTickSpacing" property for this slider. The
|
791 |
|
|
* minor tick spacing is the amount of units between each minor tick mark.
|
792 |
|
|
*
|
793 |
|
|
* @param spacing The amount of units between each minor tick mark.
|
794 |
|
|
*/
|
795 |
|
|
public void setMinorTickSpacing(int spacing)
|
796 |
|
|
{
|
797 |
|
|
if (minorTickSpacing != spacing)
|
798 |
|
|
{
|
799 |
|
|
int oldSpacing = minorTickSpacing;
|
800 |
|
|
minorTickSpacing = spacing;
|
801 |
|
|
firePropertyChange("minorTickSpacing", oldSpacing,
|
802 |
|
|
minorTickSpacing);
|
803 |
|
|
}
|
804 |
|
|
}
|
805 |
|
|
|
806 |
|
|
/**
|
807 |
|
|
* This method returns whether this slider is snapping to ticks. Sliders
|
808 |
|
|
* that snap to ticks will automatically move the thumb to the nearest tick
|
809 |
|
|
* mark.
|
810 |
|
|
*
|
811 |
|
|
* @return Whether this slider snaps to ticks.
|
812 |
|
|
*/
|
813 |
|
|
public boolean getSnapToTicks()
|
814 |
|
|
{
|
815 |
|
|
return snapToTicks;
|
816 |
|
|
}
|
817 |
|
|
|
818 |
|
|
/**
|
819 |
|
|
* This method sets whether this slider will snap to ticks. Sliders that
|
820 |
|
|
* snap to ticks will automatically move the thumb to the nearest tick
|
821 |
|
|
* mark.
|
822 |
|
|
*
|
823 |
|
|
* @param snap Whether this slider snaps to ticks.
|
824 |
|
|
*/
|
825 |
|
|
public void setSnapToTicks(boolean snap)
|
826 |
|
|
{
|
827 |
|
|
if (snap != snapToTicks)
|
828 |
|
|
{
|
829 |
|
|
snapToTicks = snap;
|
830 |
|
|
firePropertyChange("snapToTicks", !snap, snap);
|
831 |
|
|
}
|
832 |
|
|
}
|
833 |
|
|
|
834 |
|
|
/**
|
835 |
|
|
* This method returns whether the slider will paint its tick marks. In
|
836 |
|
|
* addition to setting this property to true, one of minor tick spacing or
|
837 |
|
|
* major tick spacing must be set to a value greater than 0 in order for
|
838 |
|
|
* ticks to be painted.
|
839 |
|
|
*
|
840 |
|
|
* @return Whether ticks will be painted.
|
841 |
|
|
*/
|
842 |
|
|
public boolean getPaintTicks()
|
843 |
|
|
{
|
844 |
|
|
return paintTicks;
|
845 |
|
|
}
|
846 |
|
|
|
847 |
|
|
/**
|
848 |
|
|
* This method changes the "paintTicks" property for this slider. In
|
849 |
|
|
* addition to setting this property to true, one of minor tick spacing or
|
850 |
|
|
* major tick spacing must be set to a value greater than 0 in order for
|
851 |
|
|
* ticks to be painted.
|
852 |
|
|
*
|
853 |
|
|
* @param paint Whether ticks will be painted.
|
854 |
|
|
*/
|
855 |
|
|
public void setPaintTicks(boolean paint)
|
856 |
|
|
{
|
857 |
|
|
if (paint != paintTicks)
|
858 |
|
|
{
|
859 |
|
|
boolean oldPaintTicks = paintTicks;
|
860 |
|
|
paintTicks = paint;
|
861 |
|
|
firePropertyChange("paintTicks", oldPaintTicks, paintTicks);
|
862 |
|
|
}
|
863 |
|
|
}
|
864 |
|
|
|
865 |
|
|
/**
|
866 |
|
|
* This method returns whether the track will be painted.
|
867 |
|
|
*
|
868 |
|
|
* @return Whether the track will be painted.
|
869 |
|
|
*/
|
870 |
|
|
public boolean getPaintTrack()
|
871 |
|
|
{
|
872 |
|
|
return paintTrack;
|
873 |
|
|
}
|
874 |
|
|
|
875 |
|
|
/**
|
876 |
|
|
* Sets the flag that controls whether or not the track is painted, and
|
877 |
|
|
* sends a {@link PropertyChangeEvent} (for the "paintTrack" property) to all
|
878 |
|
|
* registered listeners.
|
879 |
|
|
*
|
880 |
|
|
* @param paint Whether the track will be painted.
|
881 |
|
|
*/
|
882 |
|
|
public void setPaintTrack(boolean paint)
|
883 |
|
|
{
|
884 |
|
|
if (paintTrack != paint)
|
885 |
|
|
{
|
886 |
|
|
paintTrack = paint;
|
887 |
|
|
firePropertyChange("paintTrack", !paint, paint);
|
888 |
|
|
}
|
889 |
|
|
}
|
890 |
|
|
|
891 |
|
|
/**
|
892 |
|
|
* This method returns whether labels will be painted.
|
893 |
|
|
*
|
894 |
|
|
* @return Whether labels will be painted.
|
895 |
|
|
*/
|
896 |
|
|
public boolean getPaintLabels()
|
897 |
|
|
{
|
898 |
|
|
return paintLabels;
|
899 |
|
|
}
|
900 |
|
|
|
901 |
|
|
/**
|
902 |
|
|
* This method changes the "paintLabels" property.
|
903 |
|
|
*
|
904 |
|
|
* @param paint Whether labels will be painted.
|
905 |
|
|
*/
|
906 |
|
|
public void setPaintLabels(boolean paint)
|
907 |
|
|
{
|
908 |
|
|
if (paint != paintLabels)
|
909 |
|
|
{
|
910 |
|
|
paintLabels = paint;
|
911 |
|
|
if (paint && majorTickSpacing > 0)
|
912 |
|
|
labelTable = createStandardLabels(majorTickSpacing);
|
913 |
|
|
firePropertyChange("paintLabels", !paint, paint);
|
914 |
|
|
}
|
915 |
|
|
}
|
916 |
|
|
|
917 |
|
|
/**
|
918 |
|
|
* This method is used primarily for debugging purposes and returns a string
|
919 |
|
|
* that can be used to represent this slider.
|
920 |
|
|
*
|
921 |
|
|
* @return A string representing this slider.
|
922 |
|
|
*/
|
923 |
|
|
protected String paramString()
|
924 |
|
|
{
|
925 |
|
|
return "JSlider";
|
926 |
|
|
}
|
927 |
|
|
|
928 |
|
|
/**
|
929 |
|
|
* DOCUMENT ME!
|
930 |
|
|
*
|
931 |
|
|
* @return DOCUMENT ME!
|
932 |
|
|
*/
|
933 |
|
|
public AccessibleContext getAccessibleContext()
|
934 |
|
|
{
|
935 |
|
|
if (accessibleContext == null)
|
936 |
|
|
accessibleContext = new AccessibleJSlider();
|
937 |
|
|
|
938 |
|
|
return accessibleContext;
|
939 |
|
|
}
|
940 |
|
|
}
|