1 /*
   2  * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package javax.swing;
  27 
  28 import java.awt.*;
  29 import java.awt.event.*;
  30 import java.io.*;
  31 import java.util.*;
  32 
  33 import javax.swing.colorchooser.*;
  34 import javax.swing.plaf.ColorChooserUI;
  35 import javax.accessibility.*;
  36 
  37 import sun.swing.SwingUtilities2;
  38 
  39 
  40 /**
  41  * <code>JColorChooser</code> provides a pane of controls designed to allow
  42  * a user to manipulate and select a color.
  43  * For information about using color choosers, see
  44  * <a
  45  href="http://docs.oracle.com/javase/tutorial/uiswing/components/colorchooser.html">How to Use Color Choosers</a>,
  46  * a section in <em>The Java Tutorial</em>.
  47  *
  48  * <p>
  49  *
  50  * This class provides three levels of API:
  51  * <ol>
  52  * <li>A static convenience method which shows a modal color-chooser
  53  * dialog and returns the color selected by the user.
  54  * <li>A static convenience method for creating a color-chooser dialog
  55  * where <code>ActionListeners</code> can be specified to be invoked when
  56  * the user presses one of the dialog buttons.
  57  * <li>The ability to create instances of <code>JColorChooser</code> panes
  58  * directly (within any container). <code>PropertyChange</code> listeners
  59  * can be added to detect when the current "color" property changes.
  60  * </ol>
  61  * <p>
  62  * <strong>Warning:</strong> Swing is not thread safe. For more
  63  * information see <a
  64  * href="package-summary.html#threading">Swing's Threading
  65  * Policy</a>.
  66  * <p>
  67  * <strong>Warning:</strong>
  68  * Serialized objects of this class will not be compatible with
  69  * future Swing releases. The current serialization support is
  70  * appropriate for short term storage or RMI between applications running
  71  * the same version of Swing.  As of 1.4, support for long term storage
  72  * of all JavaBeans&trade;
  73  * has been added to the <code>java.beans</code> package.
  74  * Please see {@link java.beans.XMLEncoder}.
  75  *
  76  *
  77  * @beaninfo
  78  *      attribute: isContainer false
  79  *    description: A component that supports selecting a Color.
  80  *
  81  *
  82  * @author James Gosling
  83  * @author Amy Fowler
  84  * @author Steve Wilson
  85  * @since 1.2
  86  */
  87 @SuppressWarnings("serial") // Same-version serialization only
  88 public class JColorChooser extends JComponent implements Accessible {
  89 
  90     /**
  91      * @see #getUIClassID
  92      * @see #readObject
  93      */
  94     private static final String uiClassID = "ColorChooserUI";
  95 
  96     private ColorSelectionModel selectionModel;
  97 
  98     private JComponent previewPanel = ColorChooserComponentFactory.getPreviewPanel();
  99 
 100     private AbstractColorChooserPanel[] chooserPanels = new AbstractColorChooserPanel[0];
 101 
 102     private boolean dragEnabled;
 103 
 104     /**
 105      * The selection model property name.
 106      */
 107     public static final String      SELECTION_MODEL_PROPERTY = "selectionModel";
 108 
 109     /**
 110      * The preview panel property name.
 111      */
 112     public static final String      PREVIEW_PANEL_PROPERTY = "previewPanel";
 113 
 114     /**
 115      * The chooserPanel array property name.
 116      */
 117     public static final String      CHOOSER_PANELS_PROPERTY = "chooserPanels";
 118 
 119 
 120     /**
 121      * Shows a modal color-chooser dialog and blocks until the
 122      * dialog is hidden.  If the user presses the "OK" button, then
 123      * this method hides/disposes the dialog and returns the selected color.
 124      * If the user presses the "Cancel" button or closes the dialog without
 125      * pressing "OK", then this method hides/disposes the dialog and returns
 126      * <code>null</code>.
 127      *
 128      * @param component    the parent <code>Component</code> for the dialog
 129      * @param title        the String containing the dialog's title
 130      * @param initialColor the initial Color set when the color-chooser is shown
 131      * @return the selected color or <code>null</code> if the user opted out
 132      * @exception HeadlessException if GraphicsEnvironment.isHeadless()
 133      * returns true.
 134      * @see java.awt.GraphicsEnvironment#isHeadless
 135      */
 136     @SuppressWarnings("deprecation")
 137     public static Color showDialog(Component component,
 138         String title, Color initialColor) throws HeadlessException {
 139 
 140         final JColorChooser pane = new JColorChooser(initialColor != null?
 141                                                initialColor : Color.white);
 142 
 143         ColorTracker ok = new ColorTracker(pane);
 144         JDialog dialog = createDialog(component, title, true, pane, ok, null);
 145 
 146         dialog.addComponentListener(new ColorChooserDialog.DisposeOnClose());
 147 
 148         dialog.show(); // blocks until user brings dialog down...
 149 
 150         return ok.getColor();
 151     }
 152 
 153 
 154     /**
 155      * Creates and returns a new dialog containing the specified
 156      * <code>ColorChooser</code> pane along with "OK", "Cancel", and "Reset"
 157      * buttons. If the "OK" or "Cancel" buttons are pressed, the dialog is
 158      * automatically hidden (but not disposed).  If the "Reset"
 159      * button is pressed, the color-chooser's color will be reset to the
 160      * color which was set the last time <code>show</code> was invoked on the
 161      * dialog and the dialog will remain showing.
 162      *
 163      * @param c              the parent component for the dialog
 164      * @param title          the title for the dialog
 165      * @param modal          a boolean. When true, the remainder of the program
 166      *                       is inactive until the dialog is closed.
 167      * @param chooserPane    the color-chooser to be placed inside the dialog
 168      * @param okListener     the ActionListener invoked when "OK" is pressed
 169      * @param cancelListener the ActionListener invoked when "Cancel" is pressed
 170      * @return a new dialog containing the color-chooser pane
 171      * @exception HeadlessException if GraphicsEnvironment.isHeadless()
 172      * returns true.
 173      * @see java.awt.GraphicsEnvironment#isHeadless
 174      */
 175     public static JDialog createDialog(Component c, String title, boolean modal,
 176         JColorChooser chooserPane, ActionListener okListener,
 177         ActionListener cancelListener) throws HeadlessException {
 178 
 179         Window window = JOptionPane.getWindowForComponent(c);
 180         ColorChooserDialog dialog;
 181         if (window instanceof Frame) {
 182             dialog = new ColorChooserDialog((Frame)window, title, modal, c, chooserPane,
 183                                             okListener, cancelListener);
 184         } else {
 185             dialog = new ColorChooserDialog((Dialog)window, title, modal, c, chooserPane,
 186                                             okListener, cancelListener);
 187         }
 188         dialog.getAccessibleContext().setAccessibleDescription(title);
 189         return dialog;
 190     }
 191 
 192     /**
 193      * Creates a color chooser pane with an initial color of white.
 194      */
 195     public JColorChooser() {
 196         this(Color.white);
 197     }
 198 
 199     /**
 200      * Creates a color chooser pane with the specified initial color.
 201      *
 202      * @param initialColor the initial color set in the chooser
 203      */
 204     public JColorChooser(Color initialColor) {
 205         this( new DefaultColorSelectionModel(initialColor) );
 206 
 207     }
 208 
 209     /**
 210      * Creates a color chooser pane with the specified
 211      * <code>ColorSelectionModel</code>.
 212      *
 213      * @param model the <code>ColorSelectionModel</code> to be used
 214      */
 215     public JColorChooser(ColorSelectionModel model) {
 216         selectionModel = model;
 217         updateUI();
 218         dragEnabled = false;
 219     }
 220 
 221     /**
 222      * Returns the L&amp;F object that renders this component.
 223      *
 224      * @return the <code>ColorChooserUI</code> object that renders
 225      *          this component
 226      */
 227     public ColorChooserUI getUI() {
 228         return (ColorChooserUI)ui;
 229     }
 230 
 231     /**
 232      * Sets the L&amp;F object that renders this component.
 233      *
 234      * @param ui  the <code>ColorChooserUI</code> L&amp;F object
 235      * @see UIDefaults#getUI
 236      *
 237      * @beaninfo
 238      *       bound: true
 239      *      hidden: true
 240      * description: The UI object that implements the color chooser's LookAndFeel.
 241      */
 242     public void setUI(ColorChooserUI ui) {
 243         super.setUI(ui);
 244     }
 245 
 246     /**
 247      * Notification from the <code>UIManager</code> that the L&amp;F has changed.
 248      * Replaces the current UI object with the latest version from the
 249      * <code>UIManager</code>.
 250      *
 251      * @see JComponent#updateUI
 252      */
 253     public void updateUI() {
 254         setUI((ColorChooserUI)UIManager.getUI(this));
 255     }
 256 
 257     /**
 258      * Returns the name of the L&amp;F class that renders this component.
 259      *
 260      * @return the string "ColorChooserUI"
 261      * @see JComponent#getUIClassID
 262      * @see UIDefaults#getUI
 263      */
 264     public String getUIClassID() {
 265         return uiClassID;
 266     }
 267 
 268     /**
 269      * Gets the current color value from the color chooser.
 270      * By default, this delegates to the model.
 271      *
 272      * @return the current color value of the color chooser
 273      */
 274     public Color getColor() {
 275         return selectionModel.getSelectedColor();
 276     }
 277 
 278     /**
 279      * Sets the current color of the color chooser to the specified color.
 280      * The <code>ColorSelectionModel</code> will fire a <code>ChangeEvent</code>
 281      * @param color the color to be set in the color chooser
 282      * @see JComponent#addPropertyChangeListener
 283      *
 284      * @beaninfo
 285      *       bound: false
 286      *      hidden: false
 287      * description: The current color the chooser is to display.
 288      */
 289     public void setColor(Color color) {
 290         selectionModel.setSelectedColor(color);
 291 
 292     }
 293 
 294     /**
 295      * Sets the current color of the color chooser to the
 296      * specified RGB color.  Note that the values of red, green,
 297      * and blue should be between the numbers 0 and 255, inclusive.
 298      *
 299      * @param r   an int specifying the amount of Red
 300      * @param g   an int specifying the amount of Green
 301      * @param b   an int specifying the amount of Blue
 302      * @exception IllegalArgumentException if r,g,b values are out of range
 303      * @see java.awt.Color
 304      */
 305     public void setColor(int r, int g, int b) {
 306         setColor(new Color(r,g,b));
 307     }
 308 
 309     /**
 310      * Sets the current color of the color chooser to the
 311      * specified color.
 312      *
 313      * @param c an integer value that sets the current color in the chooser
 314      *          where the low-order 8 bits specify the Blue value,
 315      *          the next 8 bits specify the Green value, and the 8 bits
 316      *          above that specify the Red value.
 317      */
 318     public void setColor(int c) {
 319         setColor((c >> 16) & 0xFF, (c >> 8) & 0xFF, c & 0xFF);
 320     }
 321 
 322     /**
 323      * Sets the <code>dragEnabled</code> property,
 324      * which must be <code>true</code> to enable
 325      * automatic drag handling (the first part of drag and drop)
 326      * on this component.
 327      * The <code>transferHandler</code> property needs to be set
 328      * to a non-<code>null</code> value for the drag to do
 329      * anything.  The default value of the <code>dragEnabled</code>
 330      * property
 331      * is <code>false</code>.
 332      *
 333      * <p>
 334      *
 335      * When automatic drag handling is enabled,
 336      * most look and feels begin a drag-and-drop operation
 337      * when the user presses the mouse button over the preview panel.
 338      * Some look and feels might not support automatic drag and drop;
 339      * they will ignore this property.  You can work around such
 340      * look and feels by modifying the component
 341      * to directly call the <code>exportAsDrag</code> method of a
 342      * <code>TransferHandler</code>.
 343      *
 344      * @param b the value to set the <code>dragEnabled</code> property to
 345      * @exception HeadlessException if
 346      *            <code>b</code> is <code>true</code> and
 347      *            <code>GraphicsEnvironment.isHeadless()</code>
 348      *            returns <code>true</code>
 349      *
 350      * @since 1.4
 351      *
 352      * @see java.awt.GraphicsEnvironment#isHeadless
 353      * @see #getDragEnabled
 354      * @see #setTransferHandler
 355      * @see TransferHandler
 356      *
 357      * @beaninfo
 358      *  description: Determines whether automatic drag handling is enabled.
 359      *        bound: false
 360      */
 361     public void setDragEnabled(boolean b) {
 362         if (b && GraphicsEnvironment.isHeadless()) {
 363             throw new HeadlessException();
 364         }
 365         dragEnabled = b;
 366     }
 367 
 368     /**
 369      * Gets the value of the <code>dragEnabled</code> property.
 370      *
 371      * @return  the value of the <code>dragEnabled</code> property
 372      * @see #setDragEnabled
 373      * @since 1.4
 374      */
 375     public boolean getDragEnabled() {
 376         return dragEnabled;
 377     }
 378 
 379     /**
 380      * Sets the current preview panel.
 381      * This will fire a <code>PropertyChangeEvent</code> for the property
 382      * named "previewPanel".
 383      *
 384      * @param preview the <code>JComponent</code> which displays the current color
 385      * @see JComponent#addPropertyChangeListener
 386      *
 387      * @beaninfo
 388      *       bound: true
 389      *      hidden: true
 390      * description: The UI component which displays the current color.
 391      */
 392     public void setPreviewPanel(JComponent preview) {
 393 
 394         if (previewPanel != preview) {
 395             JComponent oldPreview = previewPanel;
 396             previewPanel = preview;
 397             firePropertyChange(JColorChooser.PREVIEW_PANEL_PROPERTY, oldPreview, preview);
 398         }
 399     }
 400 
 401     /**
 402      * Returns the preview panel that shows a chosen color.
 403      *
 404      * @return a <code>JComponent</code> object -- the preview panel
 405      */
 406     public JComponent getPreviewPanel() {
 407         return previewPanel;
 408     }
 409 
 410     /**
 411      * Adds a color chooser panel to the color chooser.
 412      *
 413      * @param panel the <code>AbstractColorChooserPanel</code> to be added
 414      */
 415     public void addChooserPanel( AbstractColorChooserPanel panel ) {
 416         AbstractColorChooserPanel[] oldPanels = getChooserPanels();
 417         AbstractColorChooserPanel[] newPanels = new AbstractColorChooserPanel[oldPanels.length+1];
 418         System.arraycopy(oldPanels, 0, newPanels, 0, oldPanels.length);
 419         newPanels[newPanels.length-1] = panel;
 420         setChooserPanels(newPanels);
 421     }
 422 
 423     /**
 424      * Removes the Color Panel specified.
 425      *
 426      * @param panel   a string that specifies the panel to be removed
 427      * @return the color panel
 428      * @exception IllegalArgumentException if panel is not in list of
 429      *                  known chooser panels
 430      */
 431     public AbstractColorChooserPanel removeChooserPanel( AbstractColorChooserPanel panel ) {
 432 
 433 
 434         int containedAt = -1;
 435 
 436         for (int i = 0; i < chooserPanels.length; i++) {
 437             if (chooserPanels[i] == panel) {
 438                 containedAt = i;
 439                 break;
 440             }
 441         }
 442         if (containedAt == -1) {
 443             throw new IllegalArgumentException("chooser panel not in this chooser");
 444         }
 445 
 446         AbstractColorChooserPanel[] newArray = new AbstractColorChooserPanel[chooserPanels.length-1];
 447 
 448         if (containedAt == chooserPanels.length-1) {  // at end
 449             System.arraycopy(chooserPanels, 0, newArray, 0, newArray.length);
 450         }
 451         else if (containedAt == 0) {  // at start
 452             System.arraycopy(chooserPanels, 1, newArray, 0, newArray.length);
 453         }
 454         else {  // in middle
 455             System.arraycopy(chooserPanels, 0, newArray, 0, containedAt);
 456             System.arraycopy(chooserPanels, containedAt+1,
 457                              newArray, containedAt, (chooserPanels.length - containedAt - 1));
 458         }
 459 
 460         setChooserPanels(newArray);
 461 
 462         return panel;
 463     }
 464 
 465 
 466     /**
 467      * Specifies the Color Panels used to choose a color value.
 468      *
 469      * @param panels  an array of <code>AbstractColorChooserPanel</code>
 470      *          objects
 471      *
 472      * @beaninfo
 473      *       bound: true
 474      *      hidden: true
 475      * description: An array of different chooser types.
 476      */
 477     public void setChooserPanels( AbstractColorChooserPanel[] panels) {
 478         AbstractColorChooserPanel[] oldValue = chooserPanels;
 479         chooserPanels = panels;
 480         firePropertyChange(CHOOSER_PANELS_PROPERTY, oldValue, panels);
 481     }
 482 
 483     /**
 484      * Returns the specified color panels.
 485      *
 486      * @return an array of <code>AbstractColorChooserPanel</code> objects
 487      */
 488     public AbstractColorChooserPanel[] getChooserPanels() {
 489         return chooserPanels;
 490     }
 491 
 492     /**
 493      * Returns the data model that handles color selections.
 494      *
 495      * @return a <code>ColorSelectionModel</code> object
 496      */
 497     public ColorSelectionModel getSelectionModel() {
 498         return selectionModel;
 499     }
 500 
 501 
 502     /**
 503      * Sets the model containing the selected color.
 504      *
 505      * @param newModel   the new <code>ColorSelectionModel</code> object
 506      *
 507      * @beaninfo
 508      *       bound: true
 509      *      hidden: true
 510      * description: The model which contains the currently selected color.
 511      */
 512     public void setSelectionModel(ColorSelectionModel newModel ) {
 513         ColorSelectionModel oldModel = selectionModel;
 514         selectionModel = newModel;
 515         firePropertyChange(JColorChooser.SELECTION_MODEL_PROPERTY, oldModel, newModel);
 516     }
 517 
 518 
 519     /**
 520      * See <code>readObject</code> and <code>writeObject</code> in
 521      * <code>JComponent</code> for more
 522      * information about serialization in Swing.
 523      */
 524     private void writeObject(ObjectOutputStream s) throws IOException {
 525         s.defaultWriteObject();
 526         if (getUIClassID().equals(uiClassID)) {
 527             byte count = JComponent.getWriteObjCounter(this);
 528             JComponent.setWriteObjCounter(this, --count);
 529             if (count == 0 && ui != null) {
 530                 ui.installUI(this);
 531             }
 532         }
 533     }
 534 
 535 
 536     /**
 537      * Returns a string representation of this <code>JColorChooser</code>.
 538      * This method
 539      * is intended to be used only for debugging purposes, and the
 540      * content and format of the returned string may vary between
 541      * implementations. The returned string may be empty but may not
 542      * be <code>null</code>.
 543      *
 544      * @return  a string representation of this <code>JColorChooser</code>
 545      */
 546     protected String paramString() {
 547         StringBuilder chooserPanelsString = new StringBuilder("");
 548         for (int i=0; i<chooserPanels.length; i++) {
 549             chooserPanelsString.append("[" + chooserPanels[i].toString()
 550                                        + "]");
 551         }
 552         String previewPanelString = (previewPanel != null ?
 553                                      previewPanel.toString() : "");
 554 
 555         return super.paramString() +
 556         ",chooserPanels=" + chooserPanelsString.toString() +
 557         ",previewPanel=" + previewPanelString;
 558     }
 559 
 560 /////////////////
 561 // Accessibility support
 562 ////////////////
 563 
 564     protected AccessibleContext accessibleContext = null;
 565 
 566     /**
 567      * Gets the AccessibleContext associated with this JColorChooser.
 568      * For color choosers, the AccessibleContext takes the form of an
 569      * AccessibleJColorChooser.
 570      * A new AccessibleJColorChooser instance is created if necessary.
 571      *
 572      * @return an AccessibleJColorChooser that serves as the
 573      *         AccessibleContext of this JColorChooser
 574      */
 575     public AccessibleContext getAccessibleContext() {
 576         if (accessibleContext == null) {
 577             accessibleContext = new AccessibleJColorChooser();
 578         }
 579         return accessibleContext;
 580     }
 581 
 582     /**
 583      * This class implements accessibility support for the
 584      * <code>JColorChooser</code> class.  It provides an implementation of the
 585      * Java Accessibility API appropriate to color chooser user-interface
 586      * elements.
 587      */
 588     protected class AccessibleJColorChooser extends AccessibleJComponent {
 589 
 590         /**
 591          * Get the role of this object.
 592          *
 593          * @return an instance of AccessibleRole describing the role of the
 594          * object
 595          * @see AccessibleRole
 596          */
 597         public AccessibleRole getAccessibleRole() {
 598             return AccessibleRole.COLOR_CHOOSER;
 599         }
 600 
 601     } // inner class AccessibleJColorChooser
 602 }
 603 
 604 
 605 /*
 606  * Class which builds a color chooser dialog consisting of
 607  * a JColorChooser with "Ok", "Cancel", and "Reset" buttons.
 608  *
 609  * Note: This needs to be fixed to deal with localization!
 610  */
 611 @SuppressWarnings("serial") // Superclass is not serializable across versions
 612 class ColorChooserDialog extends JDialog {
 613     private Color initialColor;
 614     private JColorChooser chooserPane;
 615     private JButton cancelButton;
 616 
 617     public ColorChooserDialog(Dialog owner, String title, boolean modal,
 618         Component c, JColorChooser chooserPane,
 619         ActionListener okListener, ActionListener cancelListener)
 620         throws HeadlessException {
 621         super(owner, title, modal);
 622         initColorChooserDialog(c, chooserPane, okListener, cancelListener);
 623     }
 624 
 625     public ColorChooserDialog(Frame owner, String title, boolean modal,
 626         Component c, JColorChooser chooserPane,
 627         ActionListener okListener, ActionListener cancelListener)
 628         throws HeadlessException {
 629         super(owner, title, modal);
 630         initColorChooserDialog(c, chooserPane, okListener, cancelListener);
 631     }
 632 
 633     protected void initColorChooserDialog(Component c, JColorChooser chooserPane,
 634         ActionListener okListener, ActionListener cancelListener) {
 635         //setResizable(false);
 636 
 637         this.chooserPane = chooserPane;
 638 
 639         Locale locale = getLocale();
 640         String okString = UIManager.getString("ColorChooser.okText", locale);
 641         String cancelString = UIManager.getString("ColorChooser.cancelText", locale);
 642         String resetString = UIManager.getString("ColorChooser.resetText", locale);
 643 
 644         Container contentPane = getContentPane();
 645         contentPane.setLayout(new BorderLayout());
 646         contentPane.add(chooserPane, BorderLayout.CENTER);
 647 
 648         /*
 649          * Create Lower button panel
 650          */
 651         JPanel buttonPane = new JPanel();
 652         buttonPane.setLayout(new FlowLayout(FlowLayout.CENTER));
 653         JButton okButton = new JButton(okString);
 654         getRootPane().setDefaultButton(okButton);
 655         okButton.getAccessibleContext().setAccessibleDescription(okString);
 656         okButton.setActionCommand("OK");
 657         okButton.addActionListener(new ActionListener() {
 658             @SuppressWarnings("deprecation")
 659             public void actionPerformed(ActionEvent e) {
 660                 hide();
 661             }
 662         });
 663         if (okListener != null) {
 664             okButton.addActionListener(okListener);
 665         }
 666         buttonPane.add(okButton);
 667 
 668         cancelButton = new JButton(cancelString);
 669         cancelButton.getAccessibleContext().setAccessibleDescription(cancelString);
 670 
 671         // The following few lines are used to register esc to close the dialog
 672         @SuppressWarnings("serial") // anonymous class
 673         Action cancelKeyAction = new AbstractAction() {
 674             public void actionPerformed(ActionEvent e) {
 675                 ((AbstractButton)e.getSource()).fireActionPerformed(e);
 676             }
 677         };
 678         KeyStroke cancelKeyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
 679         InputMap inputMap = cancelButton.getInputMap(JComponent.
 680                                                      WHEN_IN_FOCUSED_WINDOW);
 681         ActionMap actionMap = cancelButton.getActionMap();
 682         if (inputMap != null && actionMap != null) {
 683             inputMap.put(cancelKeyStroke, "cancel");
 684             actionMap.put("cancel", cancelKeyAction);
 685         }
 686         // end esc handling
 687 
 688         cancelButton.setActionCommand("cancel");
 689         cancelButton.addActionListener(new ActionListener() {
 690             @SuppressWarnings("deprecation")
 691             public void actionPerformed(ActionEvent e) {
 692                 hide();
 693             }
 694         });
 695         if (cancelListener != null) {
 696             cancelButton.addActionListener(cancelListener);
 697         }
 698         buttonPane.add(cancelButton);
 699 
 700         JButton resetButton = new JButton(resetString);
 701         resetButton.getAccessibleContext().setAccessibleDescription(resetString);
 702         resetButton.addActionListener(new ActionListener() {
 703            public void actionPerformed(ActionEvent e) {
 704                reset();
 705            }
 706         });
 707         int mnemonic = SwingUtilities2.getUIDefaultsInt("ColorChooser.resetMnemonic", locale, -1);
 708         if (mnemonic != -1) {
 709             resetButton.setMnemonic(mnemonic);
 710         }
 711         buttonPane.add(resetButton);
 712         contentPane.add(buttonPane, BorderLayout.SOUTH);
 713 
 714         if (JDialog.isDefaultLookAndFeelDecorated()) {
 715             boolean supportsWindowDecorations =
 716             UIManager.getLookAndFeel().getSupportsWindowDecorations();
 717             if (supportsWindowDecorations) {
 718                 getRootPane().setWindowDecorationStyle(JRootPane.COLOR_CHOOSER_DIALOG);
 719             }
 720         }
 721         applyComponentOrientation(((c == null) ? getRootPane() : c).getComponentOrientation());
 722 
 723         pack();
 724         setLocationRelativeTo(c);
 725 
 726         this.addWindowListener(new Closer());
 727     }
 728 
 729     @SuppressWarnings("deprecation")
 730     public void show() {
 731         initialColor = chooserPane.getColor();
 732         super.show();
 733     }
 734 
 735     public void reset() {
 736         chooserPane.setColor(initialColor);
 737     }
 738 
 739     @SuppressWarnings("serial") // JDK-implementation class
 740     class Closer extends WindowAdapter implements Serializable{
 741         @SuppressWarnings("deprecation")
 742         public void windowClosing(WindowEvent e) {
 743             cancelButton.doClick(0);
 744             Window w = e.getWindow();
 745             w.hide();
 746         }
 747     }
 748 
 749     @SuppressWarnings("serial") // JDK-implementation class
 750     static class DisposeOnClose extends ComponentAdapter implements Serializable{
 751         public void componentHidden(ComponentEvent e) {
 752             Window w = (Window)e.getComponent();
 753             w.dispose();
 754         }
 755     }
 756 
 757 }
 758 
 759 @SuppressWarnings("serial") // JDK-implementation class
 760 class ColorTracker implements ActionListener, Serializable {
 761     JColorChooser chooser;
 762     Color color;
 763 
 764     public ColorTracker(JColorChooser c) {
 765         chooser = c;
 766     }
 767 
 768     public void actionPerformed(ActionEvent e) {
 769         color = chooser.getColor();
 770     }
 771 
 772     public Color getColor() {
 773         return color;
 774     }
 775 }