mirror of git://gcc.gnu.org/git/gcc.git
862 lines
26 KiB
Java
862 lines
26 KiB
Java
/* JProgressBar.java --
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Copyright (C) 2002, 2004, 2005, 2006 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 gnu.java.lang.CPStringBuilder;
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import java.awt.Graphics;
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import java.beans.PropertyChangeEvent;
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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.AccessibleState;
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import javax.accessibility.AccessibleStateSet;
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import javax.accessibility.AccessibleValue;
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import javax.swing.border.Border;
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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.ProgressBarUI;
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/**
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* A component that displays a visual indicator of the progress of a task. The
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* component has two modes: determinate and indeterminate. In determinate mode,
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* the <code>JProgressBar</code> fills a percentage of its bar based on its
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* current value. In indeterminate mode, it creates box and bounces it between
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* its bounds.
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* <p>
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* This component has the following properties:
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* </p>
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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> borderPainted </td><td> progressBar </td><td> yes </td></tr>
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* <tr><td> changeListeners </td><td> progressBar </td><td> no </td></tr>
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* <tr><td> indeterminate </td><td> progressBar </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> model </td><td> progressBar </td><td> no </td></tr>
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* <tr><td> orientation </td><td> progressBar </td><td> yes </td></tr>
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* <tr><td> percentComplete </td><td> progressBar </td><td> no </td></tr>
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* <tr><td> string </td><td> progressBar </td><td> yes </td></tr>
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* <tr><td> stringPainted </td><td> progressBar </td><td> yes </td></tr>
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* <tr><td> value </td><td> model </td><td> no </td></tr>
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* </table>
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*/
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public class JProgressBar extends JComponent implements SwingConstants,
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Accessible
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{
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/**
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* Provides the accessibility features for the <code>JProgressBar</code>
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* component.
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*/
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protected class AccessibleJProgressBar extends AccessibleJComponent
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implements AccessibleValue
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{
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private static final long serialVersionUID = -2938130009392721813L;
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/**
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* Creates a new <code>AccessibleJProgressBar</code> instance.
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*/
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protected AccessibleJProgressBar()
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{
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// Nothing to do here.
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}
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/**
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* Returns a set containing the current state of the {@link JProgressBar}
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* component.
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*
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* @return The accessible state set.
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*/
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public AccessibleStateSet getAccessibleStateSet()
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{
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AccessibleStateSet result = super.getAccessibleStateSet();
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if (orientation == JProgressBar.HORIZONTAL)
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result.add(AccessibleState.HORIZONTAL);
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else if (orientation == JProgressBar.VERTICAL)
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result.add(AccessibleState.VERTICAL);
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return result;
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}
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/**
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* Returns the accessible role for the <code>JProgressBar</code> component.
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*
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* @return {@link AccessibleRole#PROGRESS_BAR}.
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*/
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public AccessibleRole getAccessibleRole()
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{
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return AccessibleRole.PROGRESS_BAR;
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}
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/**
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* Returns an object that provides access to the current, minimum and
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* maximum values.
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*
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* @return The accessible value.
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*/
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public AccessibleValue getAccessibleValue()
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{
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return this;
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}
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/**
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* Returns the current value of the {@link JProgressBar} component, as an
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* {@link Integer}.
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*
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* @return The current value of the {@link JProgressBar} component.
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*/
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public Number getCurrentAccessibleValue()
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{
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return new Integer(getValue());
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}
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/**
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* Sets the current value of the {@link JProgressBar} component and sends a
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* {@link PropertyChangeEvent} (with the property name
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* {@link AccessibleContext#ACCESSIBLE_VALUE_PROPERTY}) to all registered
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* listeners. If the supplied value is <code>null</code>, this method
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* does nothing and returns <code>false</code>.
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*
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* @param value the new progress bar value (<code>null</code> permitted).
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*
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* @return <code>true</code> if the slider value is updated, and
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* <code>false</code> otherwise.
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*/
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public boolean setCurrentAccessibleValue(Number value)
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{
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if (value == null)
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return false;
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Number oldValue = getCurrentAccessibleValue();
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setValue(value.intValue());
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firePropertyChange(AccessibleContext.ACCESSIBLE_VALUE_PROPERTY, oldValue,
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new Integer(getValue()));
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return true;
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}
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/**
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* Returns the minimum value of the {@link JProgressBar} component, as an
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* {@link Integer}.
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*
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* @return The minimum value of the {@link JProgressBar} component.
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*/
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public Number getMinimumAccessibleValue()
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{
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return new Integer(getMinimum());
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}
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/**
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* Returns the maximum value of the {@link JProgressBar} component, as an
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* {@link Integer}.
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*
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* @return The maximum value of the {@link JProgressBar} component.
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*/
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public Number getMaximumAccessibleValue()
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{
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return new Integer(getMaximum());
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}
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}
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private static final long serialVersionUID = 1980046021813598781L;
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/**
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* A flag that determines the mode (<code>true</code> for indeterminate,
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* <code>false</code> for determinate).
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*/
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private transient boolean indeterminate = false;
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/**
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* The orientation of the <code>JProgressBar</code>
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* ({@link SwingConstants#HORIZONTAL} or {@link SwingConstants#VERTICAL}).
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* Defaults to {@link SwingConstants#HORIZONTAL}.
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* @see #setOrientation(int)
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*/
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protected int orientation;
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/**
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* A flag the controls whether or not the component's border is painted.
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* The default is <code>true</code>.
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* @see #setBorderPainted(boolean)
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*/
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protected boolean paintBorder = true;
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/**
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* The model defining the bounds and current value for the progress bar.
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* @see #setModel(BoundedRangeModel)
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*/
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protected BoundedRangeModel model;
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/**
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* A custom string for display in the progress bar. If this is
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* <code>null</code>, a default string will be generated.
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* @see #setString(String)
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*/
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protected String progressString;
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/**
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* A flag that controls whether a string is displayed within the progress
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* bar.
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* @see #setStringPainted(boolean)
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*/
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protected boolean paintString = false;
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/**
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* A single change event reused for all events.
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* @see #fireStateChanged()
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*/
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protected transient ChangeEvent changeEvent;
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/**
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* The listener that is registered with the model. */
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protected ChangeListener changeListener;
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/**
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* Creates a new <code>JProgressBar</code> with default attributes. The
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* following defaults are used:
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* <p>
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* <ul>
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* <li><code>value</code>: 0;</li>
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* <li><code>minimum</code>: 0;</li>
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* <li><code>maximum</code>: 100;</li>
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* <li><code>orientation</code>: {@link SwingConstants#HORIZONTAL}.</li>
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* </ul>
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*/
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public JProgressBar()
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{
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this(HORIZONTAL, 0, 100);
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}
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/**
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* Creates a new <code>JProgressBar</code> with the specified
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* <code>orientation</code>. The following defaults are used:
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* <p>
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* <ul>
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* <li><code>value</code>: 0;</li>
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* <li><code>minimum</code>: 0;</li>
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* <li><code>maximum</code>: 100;</li>
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* </ul>
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*
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* @param orientation the orientation ({@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 JProgressBar(int orientation)
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{
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this(orientation, 0, 100);
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}
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/**
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* Creates a new <code>JProgressBar</code> with the specified value range.
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* The following defaults are used:
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* <p>
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* <ul>
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* <li><code>value</code>: <code>minimum</code>;</li>
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* <li><code>orientation</code>: {@link SwingConstants#HORIZONTAL}.</li>
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* </ul>
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*
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* @param minimum the lower bound of the value range.
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* @param maximum the upper bound of the value range.
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*/
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public JProgressBar(int minimum, int maximum)
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{
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this(HORIZONTAL, minimum, maximum);
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}
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/**
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* Creates a new <code>JProgressBar</code> with the specified range and
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* orientation. The following defaults are used:
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* <p>
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* <ul>
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* <li><code>value</code>: <code>minimum</code>;</li>
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* </ul>
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*
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* @param minimum the lower bound of the value range.
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* @param maximum the upper bound of the value range.
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* @param orientation the orientation ({@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 JProgressBar(int orientation, int minimum, int maximum)
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{
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model = new DefaultBoundedRangeModel(minimum, 0, minimum, maximum);
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if (orientation != HORIZONTAL && orientation != VERTICAL)
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throw new IllegalArgumentException(orientation
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+ " is not a legal orientation");
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this.orientation = orientation;
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changeListener = createChangeListener();
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model.addChangeListener(changeListener);
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updateUI();
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}
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/**
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* Creates a new <code>JProgressBar</code> with the specified model. The
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* following defaults are used:
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* <p>
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* <ul>
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* <li><code>orientation</code>: {@link SwingConstants#HORIZONTAL}.</li>
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* </ul>
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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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public JProgressBar(BoundedRangeModel model)
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{
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this.model = model;
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changeListener = createChangeListener();
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if (model != null)
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model.addChangeListener(changeListener);
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updateUI();
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}
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/**
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* Returns the current value for the <code>JProgressBar</code>. This value
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* is fetched from the model.
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*
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* @return The current value.
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*
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* @see #setValue(int)
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*/
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public int getValue()
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{
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return model.getValue();
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}
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/**
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* Sets the current value for the <code>JProgressBar</code>. The value is
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* stored in the component's <code>model</code> (see {@link #getModel()}).
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* If the new value is different to the old value, a {@link ChangeEvent} is
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* sent to the model's registered listeners. In turn, this triggers a call
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* to {@link #fireStateChanged()} which will send a <code>ChangeEvent</code>
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* to this component's registered listeners.
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* <p>
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* If <code>value</code> is outside the range <code>minimum</code> to
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* <code>maximum</code>, it will be set to the nearest of those boundary
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* values.
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*
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* @param value the new value.
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*
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* @see #getValue()
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*/
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public void setValue(int value)
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{
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model.setValue(value);
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}
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/**
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* Paints the component's border, but only if {@link #isBorderPainted()}
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* returns <code>true</code>.
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*
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* @param graphics the graphics object to paint with.
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*
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* @see #setBorderPainted(boolean)
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*/
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protected void paintBorder(Graphics graphics)
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{
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Border border = getBorder();
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if (paintBorder && border != null)
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border.paintBorder(this, graphics, 0, 0, getWidth(), getHeight());
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}
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/**
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* Returns the orientation of the <code>JProgressBar</code> component, which
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* is either {@link SwingConstants#HORIZONTAL} or
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* {@link SwingConstants#VERTICAL}. The default orientation is
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* <code>HORIZONTAL</code>.
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*
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* @return The orientation.
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*
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* @see #setOrientation(int)
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*/
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public int getOrientation()
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{
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return orientation;
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}
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/**
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* Sets the orientation for this <code>JProgressBar</code> component and,
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* if the value changes, sends a {@link PropertyChangeEvent} (with the
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* property name <code>"orientation"</code>) to all registered listeners.
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*
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* @param orientation the orientation ({@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
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* one of the listed values.
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*
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* @see #getOrientation()
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*/
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public void setOrientation(int orientation)
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{
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if (orientation != VERTICAL && orientation != HORIZONTAL)
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throw new IllegalArgumentException(orientation
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+ " is not a legal orientation");
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if (this.orientation != orientation)
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{
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int oldOrientation = this.orientation;
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this.orientation = orientation;
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firePropertyChange("orientation", oldOrientation, this.orientation);
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}
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}
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/**
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* Returns the flag that controls whether or not the string returned by
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* {@link #getString()} is displayed by the <code>JProgressBar</code>
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* component.
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*
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* @return <code>true</code> if the string should be displayed, and
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* <code>false</code> otherwise.
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*
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* @see #setStringPainted(boolean)
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*/
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public boolean isStringPainted()
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{
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return paintString;
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}
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/**
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* Sets the flag that controls whether or not the string returned by
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* {@link #getString()} is displayed by the <code>JProgressBar</code>
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* component. If the flag value changes, a {@link PropertyChangeEvent} (with
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* the property name <code>"stringPainted"</code>) is sent to all registered
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* listeners.
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*
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* @param painted the new flag value.
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*
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* @see #isStringPainted()
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* @see #setString(String)
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*/
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public void setStringPainted(boolean painted)
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{
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if (paintString != painted)
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{
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boolean oldPainted = paintString;
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paintString = painted;
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firePropertyChange("stringPainted", oldPainted, paintString);
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}
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}
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/**
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* Returns the string that is painted on the <code>JProgressBar</code> if
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* {@link #isStringPainted()} returns <code>true</code>. If no string has
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* been explicitly set, this method will return a string displaying the
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* value of {@link #getPercentComplete()}.
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*
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* @return The string.
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*
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* @see #setString(String)
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* @see #setStringPainted(boolean)
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*/
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public String getString()
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{
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if (progressString != null)
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return progressString;
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else
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return (int) (getPercentComplete() * 100) + "%";
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}
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/**
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* Sets the string to display within the progress bar and, if the new value
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* is different to the old value, sends a {@link PropertyChangeEvent} (with
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* the property name <code>"string"</code>) to all registered listeners. If
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* the string is set to <code>null</code>, {@link #getString()} will return
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* a default string.
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*
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* @param string the string (<code>null</code> permitted).
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*
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* @see #getString()
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* @see #setStringPainted(boolean)
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*/
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public void setString(String string)
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{
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if (((string == null || progressString == null) &&
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string != progressString) || (string != null &&
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! string.equals(progressString)))
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{
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String oldString = progressString;
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progressString = string;
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firePropertyChange("string", oldString, progressString);
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}
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}
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/**
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* Returns the current value expressed as a percentage. This is calculated
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* as <code>(value - min) / (max - min)</code>.
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*
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* @return The percentage (a value in the range 0.0 to 1.0).
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*/
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public double getPercentComplete()
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{
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if (getMaximum() == getMinimum())
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return 1.0;
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else
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return (double) (model.getValue() - model.getMinimum())
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/ (model.getMaximum() - model.getMinimum());
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}
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/**
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* Returns a flag that controls whether or not the component's border is
|
|
* painted. The default value is <code>true</code>.
|
|
*
|
|
* @return <code>true</code> if the component's border should be painted,
|
|
* and <code>false</code> otherwise.
|
|
*
|
|
* @see #setBorderPainted(boolean)
|
|
*/
|
|
public boolean isBorderPainted()
|
|
{
|
|
return paintBorder;
|
|
}
|
|
|
|
/**
|
|
* Sets the flag that controls whether or not the component's border is
|
|
* painted. If the flag value is changed, this method sends a
|
|
* {@link PropertyChangeEvent} (with the property name "borderPainted") to
|
|
* all registered listeners.
|
|
*
|
|
* @param painted the new flag value.
|
|
*
|
|
* @see #isBorderPainted()
|
|
* @see #paintBorder
|
|
*/
|
|
public void setBorderPainted(boolean painted)
|
|
{
|
|
if (painted != paintBorder)
|
|
{
|
|
boolean oldPainted = paintBorder;
|
|
paintBorder = painted;
|
|
firePropertyChange("borderPainted", oldPainted, paintBorder);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the UI delegate for this <code>JProgressBar</code>.
|
|
*
|
|
* @return The UI delegate.
|
|
*/
|
|
public ProgressBarUI getUI()
|
|
{
|
|
return (ProgressBarUI) ui;
|
|
}
|
|
|
|
/**
|
|
* Sets the UI delegate for this component.
|
|
*
|
|
* @param ui the new UI delegate.
|
|
*/
|
|
public void setUI(ProgressBarUI ui)
|
|
{
|
|
super.setUI(ui);
|
|
}
|
|
|
|
/**
|
|
* Sets this <code>JProgressBar</code>'s UI delegate to the default
|
|
* (obtained from the {@link UIManager}) for the current look and feel.
|
|
*/
|
|
public void updateUI()
|
|
{
|
|
setUI((ProgressBarUI) UIManager.getUI(this));
|
|
}
|
|
|
|
/**
|
|
* Returns the suffix (<code>"ProgressBarUI"</code> in this case) used to
|
|
* determine the class name for a UI delegate that can provide the look and
|
|
* feel for a <code>JProgressBar</code>.
|
|
*
|
|
* @return <code>"ProgressBarUI"</code>.
|
|
*/
|
|
public String getUIClassID()
|
|
{
|
|
return "ProgressBarUI";
|
|
}
|
|
|
|
/**
|
|
* Creates a new {@link ChangeListener} that calls
|
|
* {@link #fireStateChanged()} whenever it receives a {@link ChangeEvent}
|
|
* (typically from the component's <code>model</code>). This listener is
|
|
* registered with the progress bar's model, so that changes made to the
|
|
* model directly will automatically result in the progress bar's listeners
|
|
* being notified also.
|
|
*
|
|
* @return A new listener.
|
|
*/
|
|
protected ChangeListener createChangeListener()
|
|
{
|
|
return new ChangeListener()
|
|
{
|
|
public void stateChanged(ChangeEvent ce)
|
|
{
|
|
fireStateChanged();
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Registers a listener with this component so that it will receive
|
|
* notification of component state changes.
|
|
*
|
|
* @param listener the listener.
|
|
*
|
|
* @see #removeChangeListener(ChangeListener)
|
|
*/
|
|
public void addChangeListener(ChangeListener listener)
|
|
{
|
|
listenerList.add(ChangeListener.class, listener);
|
|
}
|
|
|
|
/**
|
|
* Deregisters a listener so that it no longer receives notification of
|
|
* component state changes.
|
|
*
|
|
* @param listener the listener.
|
|
*
|
|
* @see #addChangeListener(ChangeListener)
|
|
*/
|
|
public void removeChangeListener(ChangeListener listener)
|
|
{
|
|
listenerList.remove(ChangeListener.class, listener);
|
|
}
|
|
|
|
/**
|
|
* Returns an array of the listeners that are registered with this component.
|
|
* The array may be empty, but is never <code>null</code>.
|
|
*
|
|
* @return An array of listeners.
|
|
*
|
|
* @since 1.4
|
|
*/
|
|
public ChangeListener[] getChangeListeners()
|
|
{
|
|
return (ChangeListener[]) listenerList.getListeners(ChangeListener.class);
|
|
}
|
|
|
|
/**
|
|
* Sends a {@link ChangeEvent} to all registered listeners to indicate that
|
|
* the state of the <code>JProgressBar</code> has changed.
|
|
*
|
|
* @see #createChangeListener()
|
|
*/
|
|
protected void fireStateChanged()
|
|
{
|
|
Object[] changeListeners = listenerList.getListenerList();
|
|
if (changeEvent == null)
|
|
changeEvent = new ChangeEvent(this);
|
|
for (int i = changeListeners.length - 2; i >= 0; i -= 2)
|
|
{
|
|
if (changeListeners[i] == ChangeListener.class)
|
|
((ChangeListener) changeListeners[i + 1]).stateChanged(changeEvent);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the model for the <code>JProgressBar</code>.
|
|
*
|
|
* @return The model (never <code>null</code>).
|
|
*
|
|
* @see #setModel(BoundedRangeModel)
|
|
*/
|
|
public BoundedRangeModel getModel()
|
|
{
|
|
return model;
|
|
}
|
|
|
|
/**
|
|
* Sets the model for the <code>JProgressBar</code> and sends a
|
|
* {@link ChangeEvent} to all registered listeners.
|
|
*
|
|
* @param model the model (<code>null</code> not permitted).
|
|
*
|
|
* @see #getModel()
|
|
*/
|
|
public void setModel(BoundedRangeModel model)
|
|
{
|
|
if (model != this.model)
|
|
{
|
|
this.model.removeChangeListener(changeListener);
|
|
this.model = model;
|
|
this.model.addChangeListener(changeListener);
|
|
fireStateChanged();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the minimum value for the <code>JProgressBar</code>. This defines
|
|
* the lower bound for the current value, and is stored in the component's
|
|
* <code>model</code>.
|
|
*
|
|
* @return The minimum value.
|
|
*
|
|
* @see #setMinimum(int)
|
|
*/
|
|
public int getMinimum()
|
|
{
|
|
return model.getMinimum();
|
|
}
|
|
|
|
/**
|
|
* Sets the minimum value for the <code>JProgressBar</code>. The value is
|
|
* stored in the component's <code>model</code> (see {@link #getModel()}).
|
|
* If the new value is different to the old value, a {@link ChangeEvent} is
|
|
* sent to the model's registered listeners. In turn, this triggers a call
|
|
* to {@link #fireStateChanged()} which will send a <code>ChangeEvent</code>
|
|
* to this component's registered listeners.
|
|
*
|
|
* @param minimum the minimum value.
|
|
*
|
|
* @see #getMinimum()
|
|
*/
|
|
public void setMinimum(int minimum)
|
|
{
|
|
model.setMinimum(minimum);
|
|
}
|
|
|
|
/**
|
|
* Returns the maximum value for the <code>JProgressBar</code>. This defines
|
|
* the upper bound for the current value, and is stored in the component's
|
|
* <code>model</code>.
|
|
*
|
|
* @return The maximum value.
|
|
*
|
|
* @see #setMaximum(int)
|
|
*/
|
|
public int getMaximum()
|
|
{
|
|
return model.getMaximum();
|
|
}
|
|
|
|
/**
|
|
* Sets the maximum value for the <code>JProgressBar</code>. The value is
|
|
* stored in the component's <code>model</code> (see {@link #getModel()}).
|
|
* If the new value is different to the old value, a {@link ChangeEvent} is
|
|
* sent to the model's registered listeners. In turn, this triggers a call
|
|
* to {@link #fireStateChanged()} which will send a <code>ChangeEvent</code>
|
|
* to this component's registered listeners.
|
|
*
|
|
* @param maximum the maximum value.
|
|
*
|
|
* @see #getMaximum()
|
|
*/
|
|
public void setMaximum(int maximum)
|
|
{
|
|
model.setMaximum(maximum);
|
|
}
|
|
|
|
/**
|
|
* Returns an implementation-dependent string describing the attributes of
|
|
* this <code>JProgressBar</code>.
|
|
*
|
|
* @return A string describing the attributes of this
|
|
* <code>JProgressBar</code> (never <code>null</code>).
|
|
*/
|
|
protected String paramString()
|
|
{
|
|
String superParamStr = super.paramString();
|
|
CPStringBuilder sb = new CPStringBuilder();
|
|
sb.append(",orientation=");
|
|
if (orientation == HORIZONTAL)
|
|
sb.append("HORIZONTAL");
|
|
else
|
|
sb.append("VERTICAL");
|
|
sb.append(",paintBorder=").append(isBorderPainted());
|
|
sb.append(",paintString=").append(isStringPainted());
|
|
sb.append(",progressString=");
|
|
if (progressString != null)
|
|
sb.append(progressString);
|
|
sb.append(",indeterminateString=").append(isIndeterminate());
|
|
return superParamStr + sb.toString();
|
|
}
|
|
|
|
/**
|
|
* Sets the flag that controls the mode for this <code>JProgressBar</code>
|
|
* (<code>true</code> for indeterminate mode, and <code>false</code> for
|
|
* determinate mode). If the flag value changes, this method sends a
|
|
* {@link PropertyChangeEvent} (with the property name
|
|
* <code>"indeterminate"</code>) to all registered listeners.
|
|
* <p>
|
|
* If the <code>JProgressBar</code> is determinate, it paints a percentage
|
|
* of the bar described by its value. If it is indeterminate, it simply
|
|
* bounces a box between the ends of the bar; the value of the
|
|
* <code>JProgressBar</code> is ignored.
|
|
*
|
|
* @param flag the new flag value.
|
|
*
|
|
* @see #isIndeterminate()
|
|
* @since 1.4
|
|
*/
|
|
public void setIndeterminate(boolean flag)
|
|
{
|
|
if (indeterminate != flag)
|
|
{
|
|
indeterminate = flag;
|
|
firePropertyChange("indeterminate", !flag, indeterminate);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns a flag that indicates the mode for this <code>JProgressBar</code>
|
|
* (<code>true</code> for indeterminate mode, and <code>false</code> for
|
|
* determinate mode).
|
|
*
|
|
* @return A flag indicating the mode for the <code>JProgressBar</code>.
|
|
*
|
|
* @see #setIndeterminate(boolean)
|
|
* @since 1.4
|
|
*/
|
|
public boolean isIndeterminate()
|
|
{
|
|
return indeterminate;
|
|
}
|
|
|
|
/**
|
|
* Returns the object that provides accessibility features for this
|
|
* <code>JProgressBar</code> component.
|
|
*
|
|
* @return The accessible context (an instance of
|
|
* {@link AccessibleJProgressBar}).
|
|
*/
|
|
public AccessibleContext getAccessibleContext()
|
|
{
|
|
if (accessibleContext == null)
|
|
accessibleContext = new AccessibleJProgressBar();
|
|
|
|
return accessibleContext;
|
|
}
|
|
}
|