| /* JProgressBar.java -- |
| Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package javax.swing; |
| |
| import java.awt.Graphics; |
| import java.beans.PropertyChangeEvent; |
| |
| import javax.accessibility.Accessible; |
| import javax.accessibility.AccessibleContext; |
| import javax.accessibility.AccessibleRole; |
| import javax.accessibility.AccessibleState; |
| import javax.accessibility.AccessibleStateSet; |
| import javax.accessibility.AccessibleValue; |
| import javax.swing.border.Border; |
| import javax.swing.event.ChangeEvent; |
| import javax.swing.event.ChangeListener; |
| import javax.swing.plaf.ProgressBarUI; |
| |
| /** |
| * A component that displays a visual indicator of the progress of a task. The |
| * component has two modes: determinate and indeterminate. In determinate mode, |
| * the <code>JProgressBar</code> fills a percentage of its bar based on its |
| * current value. In indeterminate mode, it creates box and bounces it between |
| * its bounds. |
| * <p> |
| * This component has the following properties: |
| * </p> |
| * <table> |
| * <tr><th> Property </th><th> Stored in </th><th> Bound? </th></tr> |
| * <tr><td> borderPainted </td><td> progressBar </td><td> yes </td></tr> |
| * <tr><td> changeListeners </td><td> progressBar </td><td> no </td></tr> |
| * <tr><td> indeterminate </td><td> progressBar </td><td> yes </td></tr> |
| * <tr><td> maximum </td><td> model </td><td> no </td></tr> |
| * <tr><td> minimum </td><td> model </td><td> no </td></tr> |
| * <tr><td> model </td><td> progressBar </td><td> no </td></tr> |
| * <tr><td> orientation </td><td> progressBar </td><td> yes </td></tr> |
| * <tr><td> percentComplete </td><td> progressBar </td><td> no </td></tr> |
| * <tr><td> string </td><td> progressBar </td><td> yes </td></tr> |
| * <tr><td> stringPainted </td><td> progressBar </td><td> yes </td></tr> |
| * <tr><td> value </td><td> model </td><td> no </td></tr> |
| * </table> |
| */ |
| public class JProgressBar extends JComponent implements SwingConstants, |
| Accessible |
| { |
| /** |
| * Provides the accessibility features for the <code>JProgressBar</code> |
| * component. |
| */ |
| protected class AccessibleJProgressBar extends AccessibleJComponent |
| implements AccessibleValue |
| { |
| private static final long serialVersionUID = -2938130009392721813L; |
| |
| /** |
| * Creates a new <code>AccessibleJProgressBar</code> instance. |
| */ |
| protected AccessibleJProgressBar() |
| { |
| // Nothing to do here. |
| } |
| |
| /** |
| * Returns a set containing the current state of the {@link JProgressBar} |
| * component. |
| * |
| * @return The accessible state set. |
| */ |
| public AccessibleStateSet getAccessibleStateSet() |
| { |
| AccessibleStateSet result = super.getAccessibleStateSet(); |
| if (orientation == JProgressBar.HORIZONTAL) |
| result.add(AccessibleState.HORIZONTAL); |
| else if (orientation == JProgressBar.VERTICAL) |
| result.add(AccessibleState.VERTICAL); |
| return result; |
| } |
| |
| /** |
| * Returns the accessible role for the <code>JProgressBar</code> component. |
| * |
| * @return {@link AccessibleRole#PROGRESS_BAR}. |
| */ |
| public AccessibleRole getAccessibleRole() |
| { |
| return AccessibleRole.PROGRESS_BAR; |
| } |
| |
| /** |
| * Returns an object that provides access to the current, minimum and |
| * maximum values. |
| * |
| * @return The accessible value. |
| */ |
| public AccessibleValue getAccessibleValue() |
| { |
| return this; |
| } |
| |
| /** |
| * Returns the current value of the {@link JProgressBar} component, as an |
| * {@link Integer}. |
| * |
| * @return The current value of the {@link JProgressBar} component. |
| */ |
| public Number getCurrentAccessibleValue() |
| { |
| return new Integer(getValue()); |
| } |
| |
| /** |
| * Sets the current value of the {@link JProgressBar} component and sends a |
| * {@link PropertyChangeEvent} (with the property name |
| * {@link AccessibleContext#ACCESSIBLE_VALUE_PROPERTY}) to all registered |
| * listeners. If the supplied value is <code>null</code>, this method |
| * does nothing and returns <code>false</code>. |
| * |
| * @param value the new progress bar value (<code>null</code> permitted). |
| * |
| * @return <code>true</code> if the slider value is updated, and |
| * <code>false</code> otherwise. |
| */ |
| public boolean setCurrentAccessibleValue(Number value) |
| { |
| if (value == null) |
| return false; |
| Number oldValue = getCurrentAccessibleValue(); |
| setValue(value.intValue()); |
| firePropertyChange(AccessibleContext.ACCESSIBLE_VALUE_PROPERTY, oldValue, |
| new Integer(getValue())); |
| return true; |
| } |
| |
| /** |
| * Returns the minimum value of the {@link JProgressBar} component, as an |
| * {@link Integer}. |
| * |
| * @return The minimum value of the {@link JProgressBar} component. |
| */ |
| public Number getMinimumAccessibleValue() |
| { |
| return new Integer(getMinimum()); |
| } |
| |
| /** |
| * Returns the maximum value of the {@link JProgressBar} component, as an |
| * {@link Integer}. |
| * |
| * @return The maximum value of the {@link JProgressBar} component. |
| */ |
| public Number getMaximumAccessibleValue() |
| { |
| return new Integer(getMaximum()); |
| } |
| } |
| |
| private static final long serialVersionUID = 1980046021813598781L; |
| |
| /** |
| * A flag that determines the mode (<code>true</code> for indeterminate, |
| * <code>false</code> for determinate). |
| */ |
| private transient boolean indeterminate = false; |
| |
| /** |
| * The orientation of the <code>JProgressBar</code> |
| * ({@link SwingConstants#HORIZONTAL} or {@link SwingConstants#VERTICAL}). |
| * Defaults to {@link SwingConstants#HORIZONTAL}. |
| * @see #setOrientation(int) |
| */ |
| protected int orientation; |
| |
| /** |
| * A flag the controls whether or not the component's border is painted. |
| * The default is <code>true</code>. |
| * @see #setBorderPainted(boolean) |
| */ |
| protected boolean paintBorder = true; |
| |
| /** |
| * The model defining the bounds and current value for the progress bar. |
| * @see #setModel(BoundedRangeModel) |
| */ |
| protected BoundedRangeModel model; |
| |
| /** |
| * A custom string for display in the progress bar. If this is |
| * <code>null</code>, a default string will be generated. |
| * @see #setString(String) |
| */ |
| protected String progressString; |
| |
| /** |
| * A flag that controls whether a string is displayed within the progress |
| * bar. |
| * @see #setStringPainted(boolean) |
| */ |
| protected boolean paintString = false; |
| |
| /** |
| * A single change event reused for all events. |
| * @see #fireStateChanged() |
| */ |
| protected transient ChangeEvent changeEvent; |
| |
| /** |
| * The listener that is registered with the model. */ |
| protected ChangeListener changeListener; |
| |
| /** |
| * Creates a new <code>JProgressBar</code> with default attributes. The |
| * following defaults are used: |
| * <p> |
| * <ul> |
| * <li><code>value</code>: 0;</li> |
| * <li><code>minimum</code>: 0;</li> |
| * <li><code>maximum</code>: 100;</li> |
| * <li><code>orientation</code>: {@link SwingConstants#HORIZONTAL}.</li> |
| * </ul> |
| */ |
| public JProgressBar() |
| { |
| this(HORIZONTAL, 0, 100); |
| } |
| |
| /** |
| * Creates a new <code>JProgressBar</code> with the specified |
| * <code>orientation</code>. The following defaults are used: |
| * <p> |
| * <ul> |
| * <li><code>value</code>: 0;</li> |
| * <li><code>minimum</code>: 0;</li> |
| * <li><code>maximum</code>: 100;</li> |
| * </ul> |
| * |
| * @param orientation the orientation ({@link #HORIZONTAL} or |
| * {@link #VERTICAL}). |
| * |
| * @throws IllegalArgumentException if <code>orientation</code> is not one of |
| * the specified values. |
| */ |
| public JProgressBar(int orientation) |
| { |
| this(orientation, 0, 100); |
| } |
| |
| /** |
| * Creates a new <code>JProgressBar</code> with the specified value range. |
| * The following defaults are used: |
| * <p> |
| * <ul> |
| * <li><code>value</code>: <code>minimum</code>;</li> |
| * <li><code>orientation</code>: {@link SwingConstants#HORIZONTAL}.</li> |
| * </ul> |
| * |
| * @param minimum the lower bound of the value range. |
| * @param maximum the upper bound of the value range. |
| */ |
| public JProgressBar(int minimum, int maximum) |
| { |
| this(HORIZONTAL, minimum, maximum); |
| } |
| |
| /** |
| * Creates a new <code>JProgressBar</code> with the specified range and |
| * orientation. The following defaults are used: |
| * <p> |
| * <ul> |
| * <li><code>value</code>: <code>minimum</code>;</li> |
| * </ul> |
| * |
| * @param minimum the lower bound of the value range. |
| * @param maximum the upper bound of the value range. |
| * @param orientation the orientation ({@link #HORIZONTAL} or |
| * {@link #VERTICAL}). |
| * |
| * @throws IllegalArgumentException if <code>orientation</code> is not one of |
| * the specified values. |
| */ |
| public JProgressBar(int orientation, int minimum, int maximum) |
| { |
| model = new DefaultBoundedRangeModel(minimum, 0, minimum, maximum); |
| if (orientation != HORIZONTAL && orientation != VERTICAL) |
| throw new IllegalArgumentException(orientation |
| + " is not a legal orientation"); |
| this.orientation = orientation; |
| changeListener = createChangeListener(); |
| model.addChangeListener(changeListener); |
| updateUI(); |
| } |
| |
| /** |
| * Creates a new <code>JProgressBar</code> with the specified model. The |
| * following defaults are used: |
| * <p> |
| * <ul> |
| * <li><code>orientation</code>: {@link SwingConstants#HORIZONTAL}.</li> |
| * </ul> |
| * |
| * @param model the model (<code>null</code> not permitted). |
| */ |
| public JProgressBar(BoundedRangeModel model) |
| { |
| this.model = model; |
| changeListener = createChangeListener(); |
| if (model != null) |
| model.addChangeListener(changeListener); |
| updateUI(); |
| } |
| |
| /** |
| * Returns the current value for the <code>JProgressBar</code>. This value |
| * is fetched from the model. |
| * |
| * @return The current value. |
| * |
| * @see #setValue(int) |
| */ |
| public int getValue() |
| { |
| return model.getValue(); |
| } |
| |
| /** |
| * Sets the current 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. |
| * <p> |
| * If <code>value</code> is outside the range <code>minimum</code> to |
| * <code>maximum</code>, it will be set to the nearest of those boundary |
| * values. |
| * |
| * @param value the new value. |
| * |
| * @see #getValue() |
| */ |
| public void setValue(int value) |
| { |
| model.setValue(value); |
| } |
| |
| /** |
| * Paints the component's border, but only if {@link #isBorderPainted()} |
| * returns <code>true</code>. |
| * |
| * @param graphics the graphics object to paint with. |
| * |
| * @see #setBorderPainted(boolean) |
| */ |
| protected void paintBorder(Graphics graphics) |
| { |
| Border border = getBorder(); |
| if (paintBorder && border != null) |
| border.paintBorder(this, graphics, 0, 0, getWidth(), getHeight()); |
| } |
| |
| /** |
| * Returns the orientation of the <code>JProgressBar</code> component, which |
| * is either {@link SwingConstants#HORIZONTAL} or |
| * {@link SwingConstants#VERTICAL}. The default orientation is |
| * <code>HORIZONTAL</code>. |
| * |
| * @return The orientation. |
| * |
| * @see #setOrientation(int) |
| */ |
| public int getOrientation() |
| { |
| return orientation; |
| } |
| |
| /** |
| * Sets the orientation for this <code>JProgressBar</code> component and, |
| * if the value changes, sends a {@link PropertyChangeEvent} (with the |
| * property name <code>"orientation"</code>) to all registered listeners. |
| * |
| * @param orientation the orientation ({@link #HORIZONTAL} or |
| * {@link #VERTICAL}). |
| * |
| * @throws IllegalArgumentException if <code>orientation</code> is not |
| * one of the listed values. |
| * |
| * @see #getOrientation() |
| */ |
| public void setOrientation(int orientation) |
| { |
| if (orientation != VERTICAL && orientation != HORIZONTAL) |
| throw new IllegalArgumentException(orientation |
| + " is not a legal orientation"); |
| if (this.orientation != orientation) |
| { |
| int oldOrientation = this.orientation; |
| this.orientation = orientation; |
| firePropertyChange("orientation", oldOrientation, this.orientation); |
| } |
| } |
| |
| /** |
| * Returns the flag that controls whether or not the string returned by |
| * {@link #getString()} is displayed by the <code>JProgressBar</code> |
| * component. |
| * |
| * @return <code>true</code> if the string should be displayed, and |
| * <code>false</code> otherwise. |
| * |
| * @see #setStringPainted(boolean) |
| */ |
| public boolean isStringPainted() |
| { |
| return paintString; |
| } |
| |
| /** |
| * Sets the flag that controls whether or not the string returned by |
| * {@link #getString()} is displayed by the <code>JProgressBar</code> |
| * component. If the flag value changes, a {@link PropertyChangeEvent} (with |
| * the property name <code>"stringPainted"</code>) is sent to all registered |
| * listeners. |
| * |
| * @param painted the new flag value. |
| * |
| * @see #isStringPainted() |
| * @see #setString(String) |
| */ |
| public void setStringPainted(boolean painted) |
| { |
| if (paintString != painted) |
| { |
| boolean oldPainted = paintString; |
| paintString = painted; |
| firePropertyChange("stringPainted", oldPainted, paintString); |
| } |
| } |
| |
| /** |
| * Returns the string that is painted on the <code>JProgressBar</code> if |
| * {@link #isStringPainted()} returns <code>true</code>. If no string has |
| * been explicitly set, this method will return a string displaying the |
| * value of {@link #getPercentComplete()}. |
| * |
| * @return The string. |
| * |
| * @see #setString(String) |
| * @see #setStringPainted(boolean) |
| */ |
| public String getString() |
| { |
| if (progressString != null) |
| return progressString; |
| else |
| return (int) (getPercentComplete() * 100) + "%"; |
| } |
| |
| /** |
| * Sets the string to display within the progress bar and, if the new value |
| * is different to the old value, sends a {@link PropertyChangeEvent} (with |
| * the property name <code>"string"</code>) to all registered listeners. If |
| * the string is set to <code>null</code>, {@link #getString()} will return |
| * a default string. |
| * |
| * @param string the string (<code>null</code> permitted). |
| * |
| * @see #getString() |
| * @see #setStringPainted(boolean) |
| */ |
| public void setString(String string) |
| { |
| if (((string == null || progressString == null) && |
| string != progressString) || (string != null && |
| ! string.equals(progressString))) |
| { |
| String oldString = progressString; |
| progressString = string; |
| firePropertyChange("string", oldString, progressString); |
| } |
| } |
| |
| /** |
| * Returns the current value expressed as a percentage. This is calculated |
| * as <code>(value - min) / (max - min)</code>. |
| * |
| * @return The percentage (a value in the range 0.0 to 1.0). |
| */ |
| public double getPercentComplete() |
| { |
| if (getMaximum() == getMinimum()) |
| return 1.0; |
| else |
| return (double) (model.getValue() - model.getMinimum()) |
| / (model.getMaximum() - model.getMinimum()); |
| } |
| |
| /** |
| * 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(); |
| StringBuffer sb = new StringBuffer(); |
| 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; |
| } |
| } |