1 /* 2 * Copyright (c) 1995, 2013, 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 package java.awt; 26 27 import java.awt.event.*; 28 import java.awt.geom.Path2D; 29 import java.awt.geom.Point2D; 30 import java.awt.im.InputContext; 31 import java.awt.image.BufferStrategy; 32 import java.awt.image.BufferedImage; 33 import java.awt.peer.ComponentPeer; 34 import java.awt.peer.WindowPeer; 35 import java.beans.PropertyChangeListener; 36 import java.io.IOException; 37 import java.io.ObjectInputStream; 38 import java.io.ObjectOutputStream; 39 import java.io.OptionalDataException; 40 import java.io.Serializable; 41 import java.lang.ref.WeakReference; 42 import java.lang.reflect.InvocationTargetException; 43 import java.security.AccessController; 44 import java.util.ArrayList; 45 import java.util.Arrays; 46 import java.util.EventListener; 47 import java.util.Locale; 48 import java.util.ResourceBundle; 49 import java.util.Set; 50 import java.util.Vector; 51 import java.util.concurrent.atomic.AtomicBoolean; 52 import javax.accessibility.*; 53 import sun.awt.AWTAccessor; 54 import sun.awt.AppContext; 55 import sun.awt.CausedFocusEvent; 56 import sun.awt.SunToolkit; 57 import sun.awt.util.IdentityArrayList; 58 import sun.java2d.Disposer; 59 import sun.java2d.pipe.Region; 60 import sun.security.action.GetPropertyAction; 61 import sun.security.util.SecurityConstants; 62 import sun.util.logging.PlatformLogger; 63 64 /** 65 * A {@code Window} object is a top-level window with no borders and no 66 * menubar. 67 * The default layout for a window is {@code BorderLayout}. 68 * <p> 69 * A window must have either a frame, dialog, or another window defined as its 70 * owner when it's constructed. 71 * <p> 72 * In a multi-screen environment, you can create a {@code Window} 73 * on a different screen device by constructing the {@code Window} 74 * with {@link #Window(Window, GraphicsConfiguration)}. The 75 * {@code GraphicsConfiguration} object is one of the 76 * {@code GraphicsConfiguration} objects of the target screen device. 77 * <p> 78 * In a virtual device multi-screen environment in which the desktop 79 * area could span multiple physical screen devices, the bounds of all 80 * configurations are relative to the virtual device coordinate system. 81 * The origin of the virtual-coordinate system is at the upper left-hand 82 * corner of the primary physical screen. Depending on the location of 83 * the primary screen in the virtual device, negative coordinates are 84 * possible, as shown in the following figure. 85 * <p> 86 * <img src="doc-files/MultiScreen.gif" 87 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)." 88 * ALIGN=center HSPACE=10 VSPACE=7> 89 * <p> 90 * In such an environment, when calling {@code setLocation}, 91 * you must pass a virtual coordinate to this method. Similarly, 92 * calling {@code getLocationOnScreen} on a {@code Window} returns 93 * virtual device coordinates. Call the {@code getBounds} method 94 * of a {@code GraphicsConfiguration} to find its origin in the virtual 95 * coordinate system. 96 * <p> 97 * The following code sets the location of a {@code Window} 98 * at (10, 10) relative to the origin of the physical screen 99 * of the corresponding {@code GraphicsConfiguration}. If the 100 * bounds of the {@code GraphicsConfiguration} is not taken 101 * into account, the {@code Window} location would be set 102 * at (10, 10) relative to the virtual-coordinate system and would appear 103 * on the primary physical screen, which might be different from the 104 * physical screen of the specified {@code GraphicsConfiguration}. 105 * 106 * <pre> 107 * Window w = new Window(Window owner, GraphicsConfiguration gc); 108 * Rectangle bounds = gc.getBounds(); 109 * w.setLocation(10 + bounds.x, 10 + bounds.y); 110 * </pre> 111 * 112 * <p> 113 * Note: the location and size of top-level windows (including 114 * {@code Window}s, {@code Frame}s, and {@code Dialog}s) 115 * are under the control of the desktop's window management system. 116 * Calls to {@code setLocation}, {@code setSize}, and 117 * {@code setBounds} are requests (not directives) which are 118 * forwarded to the window management system. Every effort will be 119 * made to honor such requests. However, in some cases the window 120 * management system may ignore such requests, or modify the requested 121 * geometry in order to place and size the {@code Window} in a way 122 * that more closely matches the desktop settings. 123 * <p> 124 * Due to the asynchronous nature of native event handling, the results 125 * returned by {@code getBounds}, {@code getLocation}, 126 * {@code getLocationOnScreen}, and {@code getSize} might not 127 * reflect the actual geometry of the Window on screen until the last 128 * request has been processed. During the processing of subsequent 129 * requests these values might change accordingly while the window 130 * management system fulfills the requests. 131 * <p> 132 * An application may set the size and location of an invisible 133 * {@code Window} arbitrarily, but the window management system may 134 * subsequently change its size and/or location when the 135 * {@code Window} is made visible. One or more {@code ComponentEvent}s 136 * will be generated to indicate the new geometry. 137 * <p> 138 * Windows are capable of generating the following WindowEvents: 139 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus. 140 * 141 * @author Sami Shaio 142 * @author Arthur van Hoff 143 * @see WindowEvent 144 * @see #addWindowListener 145 * @see java.awt.BorderLayout 146 * @since JDK1.0 147 */ 148 public class Window extends Container implements Accessible { 149 150 /** 151 * Enumeration of available <i>window types</i>. 152 * 153 * A window type defines the generic visual appearance and behavior of a 154 * top-level window. For example, the type may affect the kind of 155 * decorations of a decorated {@code Frame} or {@code Dialog} instance. 156 * <p> 157 * Some platforms may not fully support a certain window type. Depending on 158 * the level of support, some properties of the window type may be 159 * disobeyed. 160 * 161 * @see #getType 162 * @see #setType 163 * @since 1.7 164 */ 165 public static enum Type { 166 /** 167 * Represents a <i>normal</i> window. 168 * 169 * This is the default type for objects of the {@code Window} class or 170 * its descendants. Use this type for regular top-level windows. 171 */ 172 NORMAL, 173 174 /** 175 * Represents a <i>utility</i> window. 176 * 177 * A utility window is usually a small window such as a toolbar or a 178 * palette. The native system may render the window with smaller 179 * title-bar if the window is either a {@code Frame} or a {@code 180 * Dialog} object, and if it has its decorations enabled. 181 */ 182 UTILITY, 183 184 /** 185 * Represents a <i>popup</i> window. 186 * 187 * A popup window is a temporary window such as a drop-down menu or a 188 * tooltip. On some platforms, windows of that type may be forcibly 189 * made undecorated even if they are instances of the {@code Frame} or 190 * {@code Dialog} class, and have decorations enabled. 191 */ 192 POPUP 193 } 194 195 /** 196 * This represents the warning message that is 197 * to be displayed in a non secure window. ie : 198 * a window that has a security manager installed for 199 * which calling SecurityManager.checkTopLevelWindow() 200 * is false. This message can be displayed anywhere in 201 * the window. 202 * 203 * @serial 204 * @see #getWarningString 205 */ 206 String warningString; 207 208 /** 209 * {@code icons} is the graphical way we can 210 * represent the frames and dialogs. 211 * {@code Window} can't display icon but it's 212 * being inherited by owned {@code Dialog}s. 213 * 214 * @serial 215 * @see #getIconImages 216 * @see #setIconImages(List<? extends Image>) 217 */ 218 transient java.util.List<Image> icons; 219 220 /** 221 * Holds the reference to the component which last had focus in this window 222 * before it lost focus. 223 */ 224 private transient Component temporaryLostComponent; 225 226 static boolean systemSyncLWRequests = false; 227 boolean syncLWRequests = false; 228 transient boolean beforeFirstShow = true; 229 private transient boolean disposing = false; 230 231 static final int OPENED = 0x01; 232 233 /** 234 * An Integer value representing the Window State. 235 * 236 * @serial 237 * @since 1.2 238 * @see #show 239 */ 240 int state; 241 242 /** 243 * A boolean value representing Window always-on-top state 244 * @since 1.5 245 * @serial 246 * @see #setAlwaysOnTop 247 * @see #isAlwaysOnTop 248 */ 249 private boolean alwaysOnTop; 250 251 /** 252 * Contains all the windows that have a peer object associated, 253 * i. e. between addNotify() and removeNotify() calls. The list 254 * of all Window instances can be obtained from AppContext object. 255 * 256 * @since 1.6 257 */ 258 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>(); 259 260 /** 261 * A vector containing all the windows this 262 * window currently owns. 263 * @since 1.2 264 * @see #getOwnedWindows 265 */ 266 transient Vector<WeakReference<Window>> ownedWindowList = 267 new Vector<WeakReference<Window>>(); 268 269 /* 270 * We insert a weak reference into the Vector of all Windows in AppContext 271 * instead of 'this' so that garbage collection can still take place 272 * correctly. 273 */ 274 private transient WeakReference<Window> weakThis; 275 276 transient boolean showWithParent; 277 278 /** 279 * Contains the modal dialog that blocks this window, or null 280 * if the window is unblocked. 281 * 282 * @since 1.6 283 */ 284 transient Dialog modalBlocker; 285 286 /** 287 * @serial 288 * 289 * @see java.awt.Dialog.ModalExclusionType 290 * @see #getModalExclusionType 291 * @see #setModalExclusionType 292 * 293 * @since 1.6 294 */ 295 Dialog.ModalExclusionType modalExclusionType; 296 297 transient WindowListener windowListener; 298 transient WindowStateListener windowStateListener; 299 transient WindowFocusListener windowFocusListener; 300 301 transient InputContext inputContext; 302 private transient Object inputContextLock = new Object(); 303 304 /** 305 * Unused. Maintained for serialization backward-compatibility. 306 * 307 * @serial 308 * @since 1.2 309 */ 310 private FocusManager focusMgr; 311 312 /** 313 * Indicates whether this Window can become the focused Window. 314 * 315 * @serial 316 * @see #getFocusableWindowState 317 * @see #setFocusableWindowState 318 * @since 1.4 319 */ 320 private boolean focusableWindowState = true; 321 322 /** 323 * Indicates whether this window should receive focus on 324 * subsequently being shown (with a call to {@code setVisible(true)}), or 325 * being moved to the front (with a call to {@code toFront()}). 326 * 327 * @serial 328 * @see #setAutoRequestFocus 329 * @see #isAutoRequestFocus 330 * @since 1.7 331 */ 332 private volatile boolean autoRequestFocus = true; 333 334 /* 335 * Indicates that this window is being shown. This flag is set to true at 336 * the beginning of show() and to false at the end of show(). 337 * 338 * @see #show() 339 * @see Dialog#shouldBlock 340 */ 341 transient boolean isInShow = false; 342 343 /** 344 * The opacity level of the window 345 * 346 * @serial 347 * @see #setOpacity(float) 348 * @see #getOpacity() 349 * @since 1.7 350 */ 351 private float opacity = 1.0f; 352 353 /** 354 * The shape assigned to this window. This field is set to {@code null} if 355 * no shape is set (rectangular window). 356 * 357 * @serial 358 * @see #getShape() 359 * @see #setShape(Shape) 360 * @since 1.7 361 */ 362 private Shape shape = null; 363 364 private static final String base = "win"; 365 private static int nameCounter = 0; 366 367 /* 368 * JDK 1.1 serialVersionUID 369 */ 370 private static final long serialVersionUID = 4497834738069338734L; 371 372 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window"); 373 374 private static final boolean locationByPlatformProp; 375 376 transient boolean isTrayIconWindow = false; 377 378 /** 379 * These fields are initialized in the native peer code 380 * or via AWTAccessor's WindowAccessor. 381 */ 382 private transient volatile int securityWarningWidth = 0; 383 private transient volatile int securityWarningHeight = 0; 384 385 /** 386 * These fields represent the desired location for the security 387 * warning if this window is untrusted. 388 * See com.sun.awt.SecurityWarning for more details. 389 */ 390 private transient double securityWarningPointX = 2.0; 391 private transient double securityWarningPointY = 0.0; 392 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT; 393 private transient float securityWarningAlignmentY = TOP_ALIGNMENT; 394 395 static { 396 /* ensure that the necessary native libraries are loaded */ 397 Toolkit.loadLibraries(); 398 if (!GraphicsEnvironment.isHeadless()) { 399 initIDs(); 400 } 401 402 String s = java.security.AccessController.doPrivileged( 403 new GetPropertyAction("java.awt.syncLWRequests")); 404 systemSyncLWRequests = (s != null && s.equals("true")); 405 s = java.security.AccessController.doPrivileged( 406 new GetPropertyAction("java.awt.Window.locationByPlatform")); 407 locationByPlatformProp = (s != null && s.equals("true")); 408 } 409 410 /** 411 * Initialize JNI field and method IDs for fields that may be 412 accessed from C. 413 */ 414 private static native void initIDs(); 415 416 /** 417 * Constructs a new, initially invisible window in default size with the 418 * specified {@code GraphicsConfiguration}. 419 * <p> 420 * If there is a security manager, this method first calls 421 * the security manager's {@code checkTopLevelWindow} 422 * method with {@code this} 423 * as its argument to determine whether or not the window 424 * must be displayed with a warning banner. 425 * 426 * @param gc the {@code GraphicsConfiguration} of the target screen 427 * device. If {@code gc} is {@code null}, the system default 428 * {@code GraphicsConfiguration} is assumed 429 * @exception IllegalArgumentException if {@code gc} 430 * is not from a screen device 431 * @exception HeadlessException when 432 * {@code GraphicsEnvironment.isHeadless()} returns {@code true} 433 * 434 * @see java.awt.GraphicsEnvironment#isHeadless 435 * @see java.lang.SecurityManager#checkTopLevelWindow 436 */ 437 Window(GraphicsConfiguration gc) { 438 init(gc); 439 } 440 441 transient Object anchor = new Object(); 442 static class WindowDisposerRecord implements sun.java2d.DisposerRecord { 443 final WeakReference<Window> owner; 444 final WeakReference<Window> weakThis; 445 final WeakReference<AppContext> context; 446 WindowDisposerRecord(AppContext context, Window victim) { 447 owner = new WeakReference<Window>(victim.getOwner()); 448 weakThis = victim.weakThis; 449 this.context = new WeakReference<AppContext>(context); 450 } 451 public void dispose() { 452 Window parent = owner.get(); 453 if (parent != null) { 454 parent.removeOwnedWindow(weakThis); 455 } 456 AppContext ac = context.get(); 457 if (null != ac) { 458 Window.removeFromWindowList(ac, weakThis); 459 } 460 } 461 } 462 463 private GraphicsConfiguration initGC(GraphicsConfiguration gc) { 464 GraphicsEnvironment.checkHeadless(); 465 466 if (gc == null) { 467 gc = GraphicsEnvironment.getLocalGraphicsEnvironment(). 468 getDefaultScreenDevice().getDefaultConfiguration(); 469 } 470 setGraphicsConfiguration(gc); 471 472 return gc; 473 } 474 475 private void init(GraphicsConfiguration gc) { 476 GraphicsEnvironment.checkHeadless(); 477 478 syncLWRequests = systemSyncLWRequests; 479 480 weakThis = new WeakReference<Window>(this); 481 addToWindowList(); 482 483 setWarningString(); 484 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 485 this.visible = false; 486 487 gc = initGC(gc); 488 489 if (gc.getDevice().getType() != 490 GraphicsDevice.TYPE_RASTER_SCREEN) { 491 throw new IllegalArgumentException("not a screen device"); 492 } 493 setLayout(new BorderLayout()); 494 495 /* offset the initial location with the original of the screen */ 496 /* and any insets */ 497 Rectangle screenBounds = gc.getBounds(); 498 Insets screenInsets = getToolkit().getScreenInsets(gc); 499 int x = getX() + screenBounds.x + screenInsets.left; 500 int y = getY() + screenBounds.y + screenInsets.top; 501 if (x != this.x || y != this.y) { 502 setLocation(x, y); 503 /* reset after setLocation */ 504 setLocationByPlatform(locationByPlatformProp); 505 } 506 507 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 508 509 SunToolkit.checkAndSetPolicy(this); 510 } 511 512 /** 513 * Constructs a new, initially invisible window in the default size. 514 * 515 * <p>First, if there is a security manager, its 516 * {@code checkTopLevelWindow} 517 * method is called with {@code this} 518 * as its argument 519 * to see if it's ok to display the window without a warning banner. 520 * If the default implementation of {@code checkTopLevelWindow} 521 * is used (that is, that method is not overriden), then this results in 522 * a call to the security manager's {@code checkPermission} method 523 * with an {@code AWTPermission("showWindowWithoutWarningBanner")} 524 * permission. It that method raises a SecurityException, 525 * {@code checkTopLevelWindow} returns false, otherwise it 526 * returns true. If it returns false, a warning banner is created. 527 * 528 * @exception HeadlessException when 529 * {@code GraphicsEnvironment.isHeadless()} returns {@code true} 530 * 531 * @see java.awt.GraphicsEnvironment#isHeadless 532 * @see java.lang.SecurityManager#checkTopLevelWindow 533 */ 534 Window() throws HeadlessException { 535 GraphicsEnvironment.checkHeadless(); 536 init((GraphicsConfiguration)null); 537 } 538 539 /** 540 * Constructs a new, initially invisible window with the specified 541 * {@code Frame} as its owner. The window will not be focusable 542 * unless its owner is showing on the screen. 543 * <p> 544 * If there is a security manager, this method first calls 545 * the security manager's {@code checkTopLevelWindow} 546 * method with {@code this} 547 * as its argument to determine whether or not the window 548 * must be displayed with a warning banner. 549 * 550 * @param owner the {@code Frame} to act as owner or {@code null} 551 * if this window has no owner 552 * @exception IllegalArgumentException if the {@code owner}'s 553 * {@code GraphicsConfiguration} is not from a screen device 554 * @exception HeadlessException when 555 * {@code GraphicsEnvironment.isHeadless} returns {@code true} 556 * 557 * @see java.awt.GraphicsEnvironment#isHeadless 558 * @see java.lang.SecurityManager#checkTopLevelWindow 559 * @see #isShowing 560 */ 561 public Window(Frame owner) { 562 this(owner == null ? (GraphicsConfiguration)null : 563 owner.getGraphicsConfiguration()); 564 ownedInit(owner); 565 } 566 567 /** 568 * Constructs a new, initially invisible window with the specified 569 * {@code Window} as its owner. This window will not be focusable 570 * unless its nearest owning {@code Frame} or {@code Dialog} 571 * is showing on the screen. 572 * <p> 573 * If there is a security manager, this method first calls 574 * the security manager's {@code checkTopLevelWindow} 575 * method with {@code this} 576 * as its argument to determine whether or not the window 577 * must be displayed with a warning banner. 578 * 579 * @param owner the {@code Window} to act as owner or 580 * {@code null} if this window has no owner 581 * @exception IllegalArgumentException if the {@code owner}'s 582 * {@code GraphicsConfiguration} is not from a screen device 583 * @exception HeadlessException when 584 * {@code GraphicsEnvironment.isHeadless()} returns 585 * {@code true} 586 * 587 * @see java.awt.GraphicsEnvironment#isHeadless 588 * @see java.lang.SecurityManager#checkTopLevelWindow 589 * @see #isShowing 590 * 591 * @since 1.2 592 */ 593 public Window(Window owner) { 594 this(owner == null ? (GraphicsConfiguration)null : 595 owner.getGraphicsConfiguration()); 596 ownedInit(owner); 597 } 598 599 /** 600 * Constructs a new, initially invisible window with the specified owner 601 * {@code Window} and a {@code GraphicsConfiguration} 602 * of a screen device. The Window will not be focusable unless 603 * its nearest owning {@code Frame} or {@code Dialog} 604 * is showing on the screen. 605 * <p> 606 * If there is a security manager, this method first calls 607 * the security manager's {@code checkTopLevelWindow} 608 * method with {@code this} 609 * as its argument to determine whether or not the window 610 * must be displayed with a warning banner. 611 * 612 * @param owner the window to act as owner or {@code null} 613 * if this window has no owner 614 * @param gc the {@code GraphicsConfiguration} of the target 615 * screen device; if {@code gc} is {@code null}, 616 * the system default {@code GraphicsConfiguration} is assumed 617 * @exception IllegalArgumentException if {@code gc} 618 * is not from a screen device 619 * @exception HeadlessException when 620 * {@code GraphicsEnvironment.isHeadless()} returns 621 * {@code true} 622 * 623 * @see java.awt.GraphicsEnvironment#isHeadless 624 * @see java.lang.SecurityManager#checkTopLevelWindow 625 * @see GraphicsConfiguration#getBounds 626 * @see #isShowing 627 * @since 1.3 628 */ 629 public Window(Window owner, GraphicsConfiguration gc) { 630 this(gc); 631 ownedInit(owner); 632 } 633 634 private void ownedInit(Window owner) { 635 this.parent = owner; 636 if (owner != null) { 637 owner.addOwnedWindow(weakThis); 638 } 639 640 // Fix for 6758673: this call is moved here from init(gc), because 641 // WindowDisposerRecord requires a proper value of parent field. 642 Disposer.addRecord(anchor, new WindowDisposerRecord(appContext, this)); 643 } 644 645 /** 646 * Construct a name for this component. Called by getName() when the 647 * name is null. 648 */ 649 String constructComponentName() { 650 synchronized (Window.class) { 651 return base + nameCounter++; 652 } 653 } 654 655 /** 656 * Returns the sequence of images to be displayed as the icon for this window. 657 * <p> 658 * This method returns a copy of the internally stored list, so all operations 659 * on the returned object will not affect the window's behavior. 660 * 661 * @return the copy of icon images' list for this window, or 662 * empty list if this window doesn't have icon images. 663 * @see #setIconImages 664 * @see #setIconImage(Image) 665 * @since 1.6 666 */ 667 public java.util.List<Image> getIconImages() { 668 java.util.List<Image> icons = this.icons; 669 if (icons == null || icons.size() == 0) { 670 return new ArrayList<Image>(); 671 } 672 return new ArrayList<Image>(icons); 673 } 674 675 /** 676 * Sets the sequence of images to be displayed as the icon 677 * for this window. Subsequent calls to {@code getIconImages} will 678 * always return a copy of the {@code icons} list. 679 * <p> 680 * Depending on the platform capabilities one or several images 681 * of different dimensions will be used as the window's icon. 682 * <p> 683 * The {@code icons} list is scanned for the images of most 684 * appropriate dimensions from the beginning. If the list contains 685 * several images of the same size, the first will be used. 686 * <p> 687 * Ownerless windows with no icon specified use platfrom-default icon. 688 * The icon of an owned window may be inherited from the owner 689 * unless explicitly overridden. 690 * Setting the icon to {@code null} or empty list restores 691 * the default behavior. 692 * <p> 693 * Note : Native windowing systems may use different images of differing 694 * dimensions to represent a window, depending on the context (e.g. 695 * window decoration, window list, taskbar, etc.). They could also use 696 * just a single image for all contexts or no image at all. 697 * 698 * @param icons the list of icon images to be displayed. 699 * @see #getIconImages() 700 * @see #setIconImage(Image) 701 * @since 1.6 702 */ 703 public synchronized void setIconImages(java.util.List<? extends Image> icons) { 704 this.icons = (icons == null) ? new ArrayList<Image>() : 705 new ArrayList<Image>(icons); 706 WindowPeer peer = (WindowPeer)this.peer; 707 if (peer != null) { 708 peer.updateIconImages(); 709 } 710 // Always send a property change event 711 firePropertyChange("iconImage", null, null); 712 } 713 714 /** 715 * Sets the image to be displayed as the icon for this window. 716 * <p> 717 * This method can be used instead of {@link #setIconImages setIconImages()} 718 * to specify a single image as a window's icon. 719 * <p> 720 * The following statement: 721 * <pre> 722 * setIconImage(image); 723 * </pre> 724 * is equivalent to: 725 * <pre> 726 * ArrayList<Image> imageList = new ArrayList<Image>(); 727 * imageList.add(image); 728 * setIconImages(imageList); 729 * </pre> 730 * <p> 731 * Note : Native windowing systems may use different images of differing 732 * dimensions to represent a window, depending on the context (e.g. 733 * window decoration, window list, taskbar, etc.). They could also use 734 * just a single image for all contexts or no image at all. 735 * 736 * @param image the icon image to be displayed. 737 * @see #setIconImages 738 * @see #getIconImages() 739 * @since 1.6 740 */ 741 public void setIconImage(Image image) { 742 ArrayList<Image> imageList = new ArrayList<Image>(); 743 if (image != null) { 744 imageList.add(image); 745 } 746 setIconImages(imageList); 747 } 748 749 /** 750 * Makes this Window displayable by creating the connection to its 751 * native screen resource. 752 * This method is called internally by the toolkit and should 753 * not be called directly by programs. 754 * @see Component#isDisplayable 755 * @see Container#removeNotify 756 * @since JDK1.0 757 */ 758 public void addNotify() { 759 synchronized (getTreeLock()) { 760 Container parent = this.parent; 761 if (parent != null && parent.getPeer() == null) { 762 parent.addNotify(); 763 } 764 if (peer == null) { 765 peer = getToolkit().createWindow(this); 766 } 767 synchronized (allWindows) { 768 allWindows.add(this); 769 } 770 super.addNotify(); 771 } 772 } 773 774 /** 775 * {@inheritDoc} 776 */ 777 public void removeNotify() { 778 synchronized (getTreeLock()) { 779 synchronized (allWindows) { 780 allWindows.remove(this); 781 } 782 super.removeNotify(); 783 } 784 } 785 786 /** 787 * Causes this Window to be sized to fit the preferred size 788 * and layouts of its subcomponents. The resulting width and 789 * height of the window are automatically enlarged if either 790 * of dimensions is less than the minimum size as specified 791 * by the previous call to the {@code setMinimumSize} method. 792 * <p> 793 * If the window and/or its owner are not displayable yet, 794 * both of them are made displayable before calculating 795 * the preferred size. The Window is validated after its 796 * size is being calculated. 797 * 798 * @see Component#isDisplayable 799 * @see #setMinimumSize 800 */ 801 public void pack() { 802 Container parent = this.parent; 803 if (parent != null && parent.getPeer() == null) { 804 parent.addNotify(); 805 } 806 if (peer == null) { 807 addNotify(); 808 } 809 Dimension newSize = getPreferredSize(); 810 if (peer != null) { 811 setClientSize(newSize.width, newSize.height); 812 } 813 814 if(beforeFirstShow) { 815 isPacked = true; 816 } 817 818 validateUnconditionally(); 819 } 820 821 /** 822 * Sets the minimum size of this window to a constant 823 * value. Subsequent calls to {@code getMinimumSize} 824 * will always return this value. If current window's 825 * size is less than {@code minimumSize} the size of the 826 * window is automatically enlarged to honor the minimum size. 827 * <p> 828 * If the {@code setSize} or {@code setBounds} methods 829 * are called afterwards with a width or height less than 830 * that was specified by the {@code setMinimumSize} method 831 * the window is automatically enlarged to meet 832 * the {@code minimumSize} value. The {@code minimumSize} 833 * value also affects the behaviour of the {@code pack} method. 834 * <p> 835 * The default behavior is restored by setting the minimum size 836 * parameter to the {@code null} value. 837 * <p> 838 * Resizing operation may be restricted if the user tries 839 * to resize window below the {@code minimumSize} value. 840 * This behaviour is platform-dependent. 841 * 842 * @param minimumSize the new minimum size of this window 843 * @see Component#setMinimumSize 844 * @see #getMinimumSize 845 * @see #isMinimumSizeSet 846 * @see #setSize(Dimension) 847 * @see #pack 848 * @since 1.6 849 */ 850 public void setMinimumSize(Dimension minimumSize) { 851 synchronized (getTreeLock()) { 852 super.setMinimumSize(minimumSize); 853 Dimension size = getSize(); 854 if (isMinimumSizeSet()) { 855 if (size.width < minimumSize.width || size.height < minimumSize.height) { 856 int nw = Math.max(width, minimumSize.width); 857 int nh = Math.max(height, minimumSize.height); 858 setSize(nw, nh); 859 } 860 } 861 if (peer != null) { 862 ((WindowPeer)peer).updateMinimumSize(); 863 } 864 } 865 } 866 867 /** 868 * {@inheritDoc} 869 * <p> 870 * The {@code d.width} and {@code d.height} values 871 * are automatically enlarged if either is less than 872 * the minimum size as specified by previous call to 873 * {@code setMinimumSize}. 874 * <p> 875 * The method changes the geometry-related data. Therefore, 876 * the native windowing system may ignore such requests, or it may modify 877 * the requested data, so that the {@code Window} object is placed and sized 878 * in a way that corresponds closely to the desktop settings. 879 * 880 * @see #getSize 881 * @see #setBounds 882 * @see #setMinimumSize 883 * @since 1.6 884 */ 885 public void setSize(Dimension d) { 886 super.setSize(d); 887 } 888 889 /** 890 * {@inheritDoc} 891 * <p> 892 * The {@code width} and {@code height} values 893 * are automatically enlarged if either is less than 894 * the minimum size as specified by previous call to 895 * {@code setMinimumSize}. 896 * <p> 897 * The method changes the geometry-related data. Therefore, 898 * the native windowing system may ignore such requests, or it may modify 899 * the requested data, so that the {@code Window} object is placed and sized 900 * in a way that corresponds closely to the desktop settings. 901 * 902 * @see #getSize 903 * @see #setBounds 904 * @see #setMinimumSize 905 * @since 1.6 906 */ 907 public void setSize(int width, int height) { 908 super.setSize(width, height); 909 } 910 911 /** 912 * {@inheritDoc} 913 * <p> 914 * The method changes the geometry-related data. Therefore, 915 * the native windowing system may ignore such requests, or it may modify 916 * the requested data, so that the {@code Window} object is placed and sized 917 * in a way that corresponds closely to the desktop settings. 918 */ 919 @Override 920 public void setLocation(int x, int y) { 921 super.setLocation(x, y); 922 } 923 924 /** 925 * {@inheritDoc} 926 * <p> 927 * The method changes the geometry-related data. Therefore, 928 * the native windowing system may ignore such requests, or it may modify 929 * the requested data, so that the {@code Window} object is placed and sized 930 * in a way that corresponds closely to the desktop settings. 931 */ 932 @Override 933 public void setLocation(Point p) { 934 super.setLocation(p); 935 } 936 937 /** 938 * @deprecated As of JDK version 1.1, 939 * replaced by {@code setBounds(int, int, int, int)}. 940 */ 941 @Deprecated 942 public void reshape(int x, int y, int width, int height) { 943 if (isMinimumSizeSet()) { 944 Dimension minSize = getMinimumSize(); 945 if (width < minSize.width) { 946 width = minSize.width; 947 } 948 if (height < minSize.height) { 949 height = minSize.height; 950 } 951 } 952 super.reshape(x, y, width, height); 953 } 954 955 void setClientSize(int w, int h) { 956 synchronized (getTreeLock()) { 957 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE); 958 setBounds(x, y, w, h); 959 } 960 } 961 962 static private final AtomicBoolean 963 beforeFirstWindowShown = new AtomicBoolean(true); 964 965 final void closeSplashScreen() { 966 if (isTrayIconWindow) { 967 return; 968 } 969 if (beforeFirstWindowShown.getAndSet(false)) { 970 // We don't use SplashScreen.getSplashScreen() to avoid instantiating 971 // the object if it hasn't been requested by user code explicitly 972 SunToolkit.closeSplashScreen(); 973 SplashScreen.markClosed(); 974 } 975 } 976 977 /** 978 * Shows or hides this {@code Window} depending on the value of parameter 979 * {@code b}. 980 * <p> 981 * If the method shows the window then the window is also made 982 * focused under the following conditions: 983 * <ul> 984 * <li> The {@code Window} meets the requirements outlined in the 985 * {@link #isFocusableWindow} method. 986 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value. 987 * <li> Native windowing system allows the {@code Window} to get focused. 988 * </ul> 989 * There is an exception for the second condition (the value of the 990 * {@code autoRequestFocus} property). The property is not taken into account if the 991 * window is a modal dialog, which blocks the currently focused window. 992 * <p> 993 * Developers must never assume that the window is the focused or active window 994 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event. 995 * @param b if {@code true}, makes the {@code Window} visible, 996 * otherwise hides the {@code Window}. 997 * If the {@code Window} and/or its owner 998 * are not yet displayable, both are made displayable. The 999 * {@code Window} will be validated prior to being made visible. 1000 * If the {@code Window} is already visible, this will bring the 1001 * {@code Window} to the front.<p> 1002 * If {@code false}, hides this {@code Window}, its subcomponents, and all 1003 * of its owned children. 1004 * The {@code Window} and its subcomponents can be made visible again 1005 * with a call to {@code #setVisible(true)}. 1006 * @see java.awt.Component#isDisplayable 1007 * @see java.awt.Component#setVisible 1008 * @see java.awt.Window#toFront 1009 * @see java.awt.Window#dispose 1010 * @see java.awt.Window#setAutoRequestFocus 1011 * @see java.awt.Window#isFocusableWindow 1012 */ 1013 public void setVisible(boolean b) { 1014 super.setVisible(b); 1015 } 1016 1017 /** 1018 * Makes the Window visible. If the Window and/or its owner 1019 * are not yet displayable, both are made displayable. The 1020 * Window will be validated prior to being made visible. 1021 * If the Window is already visible, this will bring the Window 1022 * to the front. 1023 * @see Component#isDisplayable 1024 * @see #toFront 1025 * @deprecated As of JDK version 1.5, replaced by 1026 * {@link #setVisible(boolean)}. 1027 */ 1028 @Deprecated 1029 public void show() { 1030 if (peer == null) { 1031 addNotify(); 1032 } 1033 validateUnconditionally(); 1034 1035 isInShow = true; 1036 if (visible) { 1037 toFront(); 1038 } else { 1039 beforeFirstShow = false; 1040 closeSplashScreen(); 1041 Dialog.checkShouldBeBlocked(this); 1042 super.show(); 1043 locationByPlatform = false; 1044 for (int i = 0; i < ownedWindowList.size(); i++) { 1045 Window child = ownedWindowList.elementAt(i).get(); 1046 if ((child != null) && child.showWithParent) { 1047 child.show(); 1048 child.showWithParent = false; 1049 } // endif 1050 } // endfor 1051 if (!isModalBlocked()) { 1052 updateChildrenBlocking(); 1053 } else { 1054 // fix for 6532736: after this window is shown, its blocker 1055 // should be raised to front 1056 modalBlocker.toFront_NoClientCode(); 1057 } 1058 if (this instanceof Frame || this instanceof Dialog) { 1059 updateChildFocusableWindowState(this); 1060 } 1061 } 1062 isInShow = false; 1063 1064 // If first time shown, generate WindowOpened event 1065 if ((state & OPENED) == 0) { 1066 postWindowEvent(WindowEvent.WINDOW_OPENED); 1067 state |= OPENED; 1068 } 1069 } 1070 1071 static void updateChildFocusableWindowState(Window w) { 1072 if (w.getPeer() != null && w.isShowing()) { 1073 ((WindowPeer)w.getPeer()).updateFocusableWindowState(); 1074 } 1075 for (int i = 0; i < w.ownedWindowList.size(); i++) { 1076 Window child = w.ownedWindowList.elementAt(i).get(); 1077 if (child != null) { 1078 updateChildFocusableWindowState(child); 1079 } 1080 } 1081 } 1082 1083 synchronized void postWindowEvent(int id) { 1084 if (windowListener != null 1085 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 1086 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) { 1087 WindowEvent e = new WindowEvent(this, id); 1088 Toolkit.getEventQueue().postEvent(e); 1089 } 1090 } 1091 1092 /** 1093 * Hide this Window, its subcomponents, and all of its owned children. 1094 * The Window and its subcomponents can be made visible again 1095 * with a call to {@code show}. 1096 * @see #show 1097 * @see #dispose 1098 * @deprecated As of JDK version 1.5, replaced by 1099 * {@link #setVisible(boolean)}. 1100 */ 1101 @Deprecated 1102 public void hide() { 1103 synchronized(ownedWindowList) { 1104 for (int i = 0; i < ownedWindowList.size(); i++) { 1105 Window child = ownedWindowList.elementAt(i).get(); 1106 if ((child != null) && child.visible) { 1107 child.hide(); 1108 child.showWithParent = true; 1109 } 1110 } 1111 } 1112 if (isModalBlocked()) { 1113 modalBlocker.unblockWindow(this); 1114 } 1115 super.hide(); 1116 } 1117 1118 final void clearMostRecentFocusOwnerOnHide() { 1119 /* do nothing */ 1120 } 1121 1122 /** 1123 * Releases all of the native screen resources used by this 1124 * {@code Window}, its subcomponents, and all of its owned 1125 * children. That is, the resources for these {@code Component}s 1126 * will be destroyed, any memory they consume will be returned to the 1127 * OS, and they will be marked as undisplayable. 1128 * <p> 1129 * The {@code Window} and its subcomponents can be made displayable 1130 * again by rebuilding the native resources with a subsequent call to 1131 * {@code pack} or {@code show}. The states of the recreated 1132 * {@code Window} and its subcomponents will be identical to the 1133 * states of these objects at the point where the {@code Window} 1134 * was disposed (not accounting for additional modifications between 1135 * those actions). 1136 * <p> 1137 * <b>Note</b>: When the last displayable window 1138 * within the Java virtual machine (VM) is disposed of, the VM may 1139 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown"> 1140 * AWT Threading Issues</a> for more information. 1141 * @see Component#isDisplayable 1142 * @see #pack 1143 * @see #show 1144 */ 1145 public void dispose() { 1146 doDispose(); 1147 } 1148 1149 /* 1150 * Fix for 4872170. 1151 * If dispose() is called on parent then its children have to be disposed as well 1152 * as reported in javadoc. So we need to implement this functionality even if a 1153 * child overrides dispose() in a wrong way without calling super.dispose(). 1154 */ 1155 void disposeImpl() { 1156 dispose(); 1157 if (getPeer() != null) { 1158 doDispose(); 1159 } 1160 } 1161 1162 void doDispose() { 1163 class DisposeAction implements Runnable { 1164 public void run() { 1165 disposing = true; 1166 try { 1167 // Check if this window is the fullscreen window for the 1168 // device. Exit the fullscreen mode prior to disposing 1169 // of the window if that's the case. 1170 GraphicsDevice gd = getGraphicsConfiguration().getDevice(); 1171 if (gd.getFullScreenWindow() == Window.this) { 1172 gd.setFullScreenWindow(null); 1173 } 1174 1175 Object[] ownedWindowArray; 1176 synchronized(ownedWindowList) { 1177 ownedWindowArray = new Object[ownedWindowList.size()]; 1178 ownedWindowList.copyInto(ownedWindowArray); 1179 } 1180 for (int i = 0; i < ownedWindowArray.length; i++) { 1181 Window child = (Window) (((WeakReference) 1182 (ownedWindowArray[i])).get()); 1183 if (child != null) { 1184 child.disposeImpl(); 1185 } 1186 } 1187 hide(); 1188 beforeFirstShow = true; 1189 removeNotify(); 1190 synchronized (inputContextLock) { 1191 if (inputContext != null) { 1192 inputContext.dispose(); 1193 inputContext = null; 1194 } 1195 } 1196 clearCurrentFocusCycleRootOnHide(); 1197 } finally { 1198 disposing = false; 1199 } 1200 } 1201 } 1202 boolean fireWindowClosedEvent = isDisplayable(); 1203 DisposeAction action = new DisposeAction(); 1204 if (EventQueue.isDispatchThread()) { 1205 action.run(); 1206 } 1207 else { 1208 try { 1209 EventQueue.invokeAndWait(this, action); 1210 } 1211 catch (InterruptedException e) { 1212 System.err.println("Disposal was interrupted:"); 1213 e.printStackTrace(); 1214 } 1215 catch (InvocationTargetException e) { 1216 System.err.println("Exception during disposal:"); 1217 e.printStackTrace(); 1218 } 1219 } 1220 // Execute outside the Runnable because postWindowEvent is 1221 // synchronized on (this). We don't need to synchronize the call 1222 // on the EventQueue anyways. 1223 if (fireWindowClosedEvent) { 1224 postWindowEvent(WindowEvent.WINDOW_CLOSED); 1225 } 1226 } 1227 1228 /* 1229 * Should only be called while holding the tree lock. 1230 * It's overridden here because parent == owner in Window, 1231 * and we shouldn't adjust counter on owner 1232 */ 1233 void adjustListeningChildrenOnParent(long mask, int num) { 1234 } 1235 1236 // Should only be called while holding tree lock 1237 void adjustDecendantsOnParent(int num) { 1238 // do nothing since parent == owner and we shouldn't 1239 // ajust counter on owner 1240 } 1241 1242 /** 1243 * If this Window is visible, brings this Window to the front and may make 1244 * it the focused Window. 1245 * <p> 1246 * Places this Window at the top of the stacking order and shows it in 1247 * front of any other Windows in this VM. No action will take place if this 1248 * Window is not visible. Some platforms do not allow Windows which own 1249 * other Windows to appear on top of those owned Windows. Some platforms 1250 * may not permit this VM to place its Windows above windows of native 1251 * applications, or Windows of other VMs. This permission may depend on 1252 * whether a Window in this VM is already focused. Every attempt will be 1253 * made to move this Window as high as possible in the stacking order; 1254 * however, developers should not assume that this method will move this 1255 * Window above all other windows in every situation. 1256 * <p> 1257 * Developers must never assume that this Window is the focused or active 1258 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED 1259 * event. On platforms where the top-most window is the focused window, this 1260 * method will <b>probably</b> focus this Window (if it is not already focused) 1261 * under the following conditions: 1262 * <ul> 1263 * <li> The window meets the requirements outlined in the 1264 * {@link #isFocusableWindow} method. 1265 * <li> The window's property {@code autoRequestFocus} is of the 1266 * {@code true} value. 1267 * <li> Native windowing system allows the window to get focused. 1268 * </ul> 1269 * On platforms where the stacking order does not typically affect the focused 1270 * window, this method will <b>probably</b> leave the focused and active 1271 * Windows unchanged. 1272 * <p> 1273 * If this method causes this Window to be focused, and this Window is a 1274 * Frame or a Dialog, it will also become activated. If this Window is 1275 * focused, but it is not a Frame or a Dialog, then the first Frame or 1276 * Dialog that is an owner of this Window will be activated. 1277 * <p> 1278 * If this window is blocked by modal dialog, then the blocking dialog 1279 * is brought to the front and remains above the blocked window. 1280 * 1281 * @see #toBack 1282 * @see #setAutoRequestFocus 1283 * @see #isFocusableWindow 1284 */ 1285 public void toFront() { 1286 toFront_NoClientCode(); 1287 } 1288 1289 // This functionality is implemented in a final package-private method 1290 // to insure that it cannot be overridden by client subclasses. 1291 final void toFront_NoClientCode() { 1292 if (visible) { 1293 WindowPeer peer = (WindowPeer)this.peer; 1294 if (peer != null) { 1295 peer.toFront(); 1296 } 1297 if (isModalBlocked()) { 1298 modalBlocker.toFront_NoClientCode(); 1299 } 1300 } 1301 } 1302 1303 /** 1304 * If this Window is visible, sends this Window to the back and may cause 1305 * it to lose focus or activation if it is the focused or active Window. 1306 * <p> 1307 * Places this Window at the bottom of the stacking order and shows it 1308 * behind any other Windows in this VM. No action will take place is this 1309 * Window is not visible. Some platforms do not allow Windows which are 1310 * owned by other Windows to appear below their owners. Every attempt will 1311 * be made to move this Window as low as possible in the stacking order; 1312 * however, developers should not assume that this method will move this 1313 * Window below all other windows in every situation. 1314 * <p> 1315 * Because of variations in native windowing systems, no guarantees about 1316 * changes to the focused and active Windows can be made. Developers must 1317 * never assume that this Window is no longer the focused or active Window 1318 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED 1319 * event. On platforms where the top-most window is the focused window, 1320 * this method will <b>probably</b> cause this Window to lose focus. In 1321 * that case, the next highest, focusable Window in this VM will receive 1322 * focus. On platforms where the stacking order does not typically affect 1323 * the focused window, this method will <b>probably</b> leave the focused 1324 * and active Windows unchanged. 1325 * 1326 * @see #toFront 1327 */ 1328 public void toBack() { 1329 toBack_NoClientCode(); 1330 } 1331 1332 // This functionality is implemented in a final package-private method 1333 // to insure that it cannot be overridden by client subclasses. 1334 final void toBack_NoClientCode() { 1335 if(isAlwaysOnTop()) { 1336 try { 1337 setAlwaysOnTop(false); 1338 }catch(SecurityException e) { 1339 } 1340 } 1341 if (visible) { 1342 WindowPeer peer = (WindowPeer)this.peer; 1343 if (peer != null) { 1344 peer.toBack(); 1345 } 1346 } 1347 } 1348 1349 /** 1350 * Returns the toolkit of this frame. 1351 * @return the toolkit of this window. 1352 * @see Toolkit 1353 * @see Toolkit#getDefaultToolkit 1354 * @see Component#getToolkit 1355 */ 1356 public Toolkit getToolkit() { 1357 return Toolkit.getDefaultToolkit(); 1358 } 1359 1360 /** 1361 * Gets the warning string that is displayed with this window. 1362 * If this window is insecure, the warning string is displayed 1363 * somewhere in the visible area of the window. A window is 1364 * insecure if there is a security manager, and the security 1365 * manager's {@code checkTopLevelWindow} method returns 1366 * {@code false} when this window is passed to it as an 1367 * argument. 1368 * <p> 1369 * If the window is secure, then {@code getWarningString} 1370 * returns {@code null}. If the window is insecure, this 1371 * method checks for the system property 1372 * {@code awt.appletWarning} 1373 * and returns the string value of that property. 1374 * @return the warning string for this window. 1375 * @see java.lang.SecurityManager#checkTopLevelWindow(java.lang.Object) 1376 */ 1377 public final String getWarningString() { 1378 return warningString; 1379 } 1380 1381 private void setWarningString() { 1382 warningString = null; 1383 SecurityManager sm = System.getSecurityManager(); 1384 if (sm != null) { 1385 if (!sm.checkTopLevelWindow(this)) { 1386 // make sure the privileged action is only 1387 // for getting the property! We don't want the 1388 // above checkTopLevelWindow call to always succeed! 1389 warningString = AccessController.doPrivileged( 1390 new GetPropertyAction("awt.appletWarning", 1391 "Java Applet Window")); 1392 } 1393 } 1394 } 1395 1396 /** 1397 * Gets the {@code Locale} object that is associated 1398 * with this window, if the locale has been set. 1399 * If no locale has been set, then the default locale 1400 * is returned. 1401 * @return the locale that is set for this window. 1402 * @see java.util.Locale 1403 * @since JDK1.1 1404 */ 1405 public Locale getLocale() { 1406 if (this.locale == null) { 1407 return Locale.getDefault(); 1408 } 1409 return this.locale; 1410 } 1411 1412 /** 1413 * Gets the input context for this window. A window always has an input context, 1414 * which is shared by subcomponents unless they create and set their own. 1415 * @see Component#getInputContext 1416 * @since 1.2 1417 */ 1418 public InputContext getInputContext() { 1419 synchronized (inputContextLock) { 1420 if (inputContext == null) { 1421 inputContext = InputContext.getInstance(); 1422 } 1423 } 1424 return inputContext; 1425 } 1426 1427 /** 1428 * Set the cursor image to a specified cursor. 1429 * <p> 1430 * The method may have no visual effect if the Java platform 1431 * implementation and/or the native system do not support 1432 * changing the mouse cursor shape. 1433 * @param cursor One of the constants defined 1434 * by the {@code Cursor} class. If this parameter is null 1435 * then the cursor for this window will be set to the type 1436 * Cursor.DEFAULT_CURSOR. 1437 * @see Component#getCursor 1438 * @see Cursor 1439 * @since JDK1.1 1440 */ 1441 public void setCursor(Cursor cursor) { 1442 if (cursor == null) { 1443 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 1444 } 1445 super.setCursor(cursor); 1446 } 1447 1448 /** 1449 * Returns the owner of this window. 1450 * @since 1.2 1451 */ 1452 public Window getOwner() { 1453 return getOwner_NoClientCode(); 1454 } 1455 final Window getOwner_NoClientCode() { 1456 return (Window)parent; 1457 } 1458 1459 /** 1460 * Return an array containing all the windows this 1461 * window currently owns. 1462 * @since 1.2 1463 */ 1464 public Window[] getOwnedWindows() { 1465 return getOwnedWindows_NoClientCode(); 1466 } 1467 final Window[] getOwnedWindows_NoClientCode() { 1468 Window realCopy[]; 1469 1470 synchronized(ownedWindowList) { 1471 // Recall that ownedWindowList is actually a Vector of 1472 // WeakReferences and calling get() on one of these references 1473 // may return null. Make two arrays-- one the size of the 1474 // Vector (fullCopy with size fullSize), and one the size of 1475 // all non-null get()s (realCopy with size realSize). 1476 int fullSize = ownedWindowList.size(); 1477 int realSize = 0; 1478 Window fullCopy[] = new Window[fullSize]; 1479 1480 for (int i = 0; i < fullSize; i++) { 1481 fullCopy[realSize] = ownedWindowList.elementAt(i).get(); 1482 1483 if (fullCopy[realSize] != null) { 1484 realSize++; 1485 } 1486 } 1487 1488 if (fullSize != realSize) { 1489 realCopy = Arrays.copyOf(fullCopy, realSize); 1490 } else { 1491 realCopy = fullCopy; 1492 } 1493 } 1494 1495 return realCopy; 1496 } 1497 1498 boolean isModalBlocked() { 1499 return modalBlocker != null; 1500 } 1501 1502 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) { 1503 this.modalBlocker = blocked ? blocker : null; 1504 if (peerCall) { 1505 WindowPeer peer = (WindowPeer)this.peer; 1506 if (peer != null) { 1507 peer.setModalBlocked(blocker, blocked); 1508 } 1509 } 1510 } 1511 1512 Dialog getModalBlocker() { 1513 return modalBlocker; 1514 } 1515 1516 /* 1517 * Returns a list of all displayable Windows, i. e. all the 1518 * Windows which peer is not null. 1519 * 1520 * @see #addNotify 1521 * @see #removeNotify 1522 */ 1523 static IdentityArrayList<Window> getAllWindows() { 1524 synchronized (allWindows) { 1525 IdentityArrayList<Window> v = new IdentityArrayList<Window>(); 1526 v.addAll(allWindows); 1527 return v; 1528 } 1529 } 1530 1531 static IdentityArrayList<Window> getAllUnblockedWindows() { 1532 synchronized (allWindows) { 1533 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>(); 1534 for (int i = 0; i < allWindows.size(); i++) { 1535 Window w = allWindows.get(i); 1536 if (!w.isModalBlocked()) { 1537 unblocked.add(w); 1538 } 1539 } 1540 return unblocked; 1541 } 1542 } 1543 1544 private static Window[] getWindows(AppContext appContext) { 1545 synchronized (Window.class) { 1546 Window realCopy[]; 1547 @SuppressWarnings("unchecked") 1548 Vector<WeakReference<Window>> windowList = 1549 (Vector<WeakReference<Window>>)appContext.get(Window.class); 1550 if (windowList != null) { 1551 int fullSize = windowList.size(); 1552 int realSize = 0; 1553 Window fullCopy[] = new Window[fullSize]; 1554 for (int i = 0; i < fullSize; i++) { 1555 Window w = windowList.get(i).get(); 1556 if (w != null) { 1557 fullCopy[realSize++] = w; 1558 } 1559 } 1560 if (fullSize != realSize) { 1561 realCopy = Arrays.copyOf(fullCopy, realSize); 1562 } else { 1563 realCopy = fullCopy; 1564 } 1565 } else { 1566 realCopy = new Window[0]; 1567 } 1568 return realCopy; 1569 } 1570 } 1571 1572 /** 1573 * Returns an array of all {@code Window}s, both owned and ownerless, 1574 * created by this application. 1575 * If called from an applet, the array includes only the {@code Window}s 1576 * accessible by that applet. 1577 * <p> 1578 * <b>Warning:</b> this method may return system created windows, such 1579 * as a print dialog. Applications should not assume the existence of 1580 * these dialogs, nor should an application assume anything about these 1581 * dialogs such as component positions, {@code LayoutManager}s 1582 * or serialization. 1583 * 1584 * @see Frame#getFrames 1585 * @see Window#getOwnerlessWindows 1586 * 1587 * @since 1.6 1588 */ 1589 public static Window[] getWindows() { 1590 return getWindows(AppContext.getAppContext()); 1591 } 1592 1593 /** 1594 * Returns an array of all {@code Window}s created by this application 1595 * that have no owner. They include {@code Frame}s and ownerless 1596 * {@code Dialog}s and {@code Window}s. 1597 * If called from an applet, the array includes only the {@code Window}s 1598 * accessible by that applet. 1599 * <p> 1600 * <b>Warning:</b> this method may return system created windows, such 1601 * as a print dialog. Applications should not assume the existence of 1602 * these dialogs, nor should an application assume anything about these 1603 * dialogs such as component positions, {@code LayoutManager}s 1604 * or serialization. 1605 * 1606 * @see Frame#getFrames 1607 * @see Window#getWindows() 1608 * 1609 * @since 1.6 1610 */ 1611 public static Window[] getOwnerlessWindows() { 1612 Window[] allWindows = Window.getWindows(); 1613 1614 int ownerlessCount = 0; 1615 for (Window w : allWindows) { 1616 if (w.getOwner() == null) { 1617 ownerlessCount++; 1618 } 1619 } 1620 1621 Window[] ownerless = new Window[ownerlessCount]; 1622 int c = 0; 1623 for (Window w : allWindows) { 1624 if (w.getOwner() == null) { 1625 ownerless[c++] = w; 1626 } 1627 } 1628 1629 return ownerless; 1630 } 1631 1632 Window getDocumentRoot() { 1633 synchronized (getTreeLock()) { 1634 Window w = this; 1635 while (w.getOwner() != null) { 1636 w = w.getOwner(); 1637 } 1638 return w; 1639 } 1640 } 1641 1642 /** 1643 * Specifies the modal exclusion type for this window. If a window is modal 1644 * excluded, it is not blocked by some modal dialogs. See {@link 1645 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for 1646 * possible modal exclusion types. 1647 * <p> 1648 * If the given type is not supported, {@code NO_EXCLUDE} is used. 1649 * <p> 1650 * Note: changing the modal exclusion type for a visible window may have no 1651 * effect until it is hidden and then shown again. 1652 * 1653 * @param exclusionType the modal exclusion type for this window; a {@code null} 1654 * value is equivivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE 1655 * NO_EXCLUDE} 1656 * @throws SecurityException if the calling thread does not have permission 1657 * to set the modal exclusion property to the window with the given 1658 * {@code exclusionType} 1659 * @see java.awt.Dialog.ModalExclusionType 1660 * @see java.awt.Window#getModalExclusionType 1661 * @see java.awt.Toolkit#isModalExclusionTypeSupported 1662 * 1663 * @since 1.6 1664 */ 1665 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) { 1666 if (exclusionType == null) { 1667 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 1668 } 1669 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) { 1670 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 1671 } 1672 if (modalExclusionType == exclusionType) { 1673 return; 1674 } 1675 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) { 1676 SecurityManager sm = System.getSecurityManager(); 1677 if (sm != null) { 1678 sm.checkPermission(SecurityConstants.AWT.TOOLKIT_MODALITY_PERMISSION); 1679 } 1680 } 1681 modalExclusionType = exclusionType; 1682 1683 // if we want on-fly changes, we need to uncomment the lines below 1684 // and override the method in Dialog to use modalShow() instead 1685 // of updateChildrenBlocking() 1686 /* 1687 if (isModalBlocked()) { 1688 modalBlocker.unblockWindow(this); 1689 } 1690 Dialog.checkShouldBeBlocked(this); 1691 updateChildrenBlocking(); 1692 */ 1693 } 1694 1695 /** 1696 * Returns the modal exclusion type of this window. 1697 * 1698 * @return the modal exclusion type of this window 1699 * 1700 * @see java.awt.Dialog.ModalExclusionType 1701 * @see java.awt.Window#setModalExclusionType 1702 * 1703 * @since 1.6 1704 */ 1705 public Dialog.ModalExclusionType getModalExclusionType() { 1706 return modalExclusionType; 1707 } 1708 1709 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) { 1710 if ((modalExclusionType != null) && 1711 modalExclusionType.compareTo(exclusionType) >= 0) 1712 { 1713 return true; 1714 } 1715 Window owner = getOwner_NoClientCode(); 1716 return (owner != null) && owner.isModalExcluded(exclusionType); 1717 } 1718 1719 void updateChildrenBlocking() { 1720 Vector<Window> childHierarchy = new Vector<Window>(); 1721 Window[] ownedWindows = getOwnedWindows(); 1722 for (int i = 0; i < ownedWindows.length; i++) { 1723 childHierarchy.add(ownedWindows[i]); 1724 } 1725 int k = 0; 1726 while (k < childHierarchy.size()) { 1727 Window w = childHierarchy.get(k); 1728 if (w.isVisible()) { 1729 if (w.isModalBlocked()) { 1730 Dialog blocker = w.getModalBlocker(); 1731 blocker.unblockWindow(w); 1732 } 1733 Dialog.checkShouldBeBlocked(w); 1734 Window[] wOwned = w.getOwnedWindows(); 1735 for (int j = 0; j < wOwned.length; j++) { 1736 childHierarchy.add(wOwned[j]); 1737 } 1738 } 1739 k++; 1740 } 1741 } 1742 1743 /** 1744 * Adds the specified window listener to receive window events from 1745 * this window. 1746 * If l is null, no exception is thrown and no action is performed. 1747 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1748 * >AWT Threading Issues</a> for details on AWT's threading model. 1749 * 1750 * @param l the window listener 1751 * @see #removeWindowListener 1752 * @see #getWindowListeners 1753 */ 1754 public synchronized void addWindowListener(WindowListener l) { 1755 if (l == null) { 1756 return; 1757 } 1758 newEventsOnly = true; 1759 windowListener = AWTEventMulticaster.add(windowListener, l); 1760 } 1761 1762 /** 1763 * Adds the specified window state listener to receive window 1764 * events from this window. If {@code l} is {@code null}, 1765 * no exception is thrown and no action is performed. 1766 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1767 * >AWT Threading Issues</a> for details on AWT's threading model. 1768 * 1769 * @param l the window state listener 1770 * @see #removeWindowStateListener 1771 * @see #getWindowStateListeners 1772 * @since 1.4 1773 */ 1774 public synchronized void addWindowStateListener(WindowStateListener l) { 1775 if (l == null) { 1776 return; 1777 } 1778 windowStateListener = AWTEventMulticaster.add(windowStateListener, l); 1779 newEventsOnly = true; 1780 } 1781 1782 /** 1783 * Adds the specified window focus listener to receive window events 1784 * from this window. 1785 * If l is null, no exception is thrown and no action is performed. 1786 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1787 * >AWT Threading Issues</a> for details on AWT's threading model. 1788 * 1789 * @param l the window focus listener 1790 * @see #removeWindowFocusListener 1791 * @see #getWindowFocusListeners 1792 * @since 1.4 1793 */ 1794 public synchronized void addWindowFocusListener(WindowFocusListener l) { 1795 if (l == null) { 1796 return; 1797 } 1798 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l); 1799 newEventsOnly = true; 1800 } 1801 1802 /** 1803 * Removes the specified window listener so that it no longer 1804 * receives window events from this window. 1805 * If l is null, no exception is thrown and no action is performed. 1806 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1807 * >AWT Threading Issues</a> for details on AWT's threading model. 1808 * 1809 * @param l the window listener 1810 * @see #addWindowListener 1811 * @see #getWindowListeners 1812 */ 1813 public synchronized void removeWindowListener(WindowListener l) { 1814 if (l == null) { 1815 return; 1816 } 1817 windowListener = AWTEventMulticaster.remove(windowListener, l); 1818 } 1819 1820 /** 1821 * Removes the specified window state listener so that it no 1822 * longer receives window events from this window. If 1823 * {@code l} is {@code null}, no exception is thrown and 1824 * no action is performed. 1825 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1826 * >AWT Threading Issues</a> for details on AWT's threading model. 1827 * 1828 * @param l the window state listener 1829 * @see #addWindowStateListener 1830 * @see #getWindowStateListeners 1831 * @since 1.4 1832 */ 1833 public synchronized void removeWindowStateListener(WindowStateListener l) { 1834 if (l == null) { 1835 return; 1836 } 1837 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l); 1838 } 1839 1840 /** 1841 * Removes the specified window focus listener so that it no longer 1842 * receives window events from this window. 1843 * If l is null, no exception is thrown and no action is performed. 1844 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1845 * >AWT Threading Issues</a> for details on AWT's threading model. 1846 * 1847 * @param l the window focus listener 1848 * @see #addWindowFocusListener 1849 * @see #getWindowFocusListeners 1850 * @since 1.4 1851 */ 1852 public synchronized void removeWindowFocusListener(WindowFocusListener l) { 1853 if (l == null) { 1854 return; 1855 } 1856 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l); 1857 } 1858 1859 /** 1860 * Returns an array of all the window listeners 1861 * registered on this window. 1862 * 1863 * @return all of this window's {@code WindowListener}s 1864 * or an empty array if no window 1865 * listeners are currently registered 1866 * 1867 * @see #addWindowListener 1868 * @see #removeWindowListener 1869 * @since 1.4 1870 */ 1871 public synchronized WindowListener[] getWindowListeners() { 1872 return getListeners(WindowListener.class); 1873 } 1874 1875 /** 1876 * Returns an array of all the window focus listeners 1877 * registered on this window. 1878 * 1879 * @return all of this window's {@code WindowFocusListener}s 1880 * or an empty array if no window focus 1881 * listeners are currently registered 1882 * 1883 * @see #addWindowFocusListener 1884 * @see #removeWindowFocusListener 1885 * @since 1.4 1886 */ 1887 public synchronized WindowFocusListener[] getWindowFocusListeners() { 1888 return getListeners(WindowFocusListener.class); 1889 } 1890 1891 /** 1892 * Returns an array of all the window state listeners 1893 * registered on this window. 1894 * 1895 * @return all of this window's {@code WindowStateListener}s 1896 * or an empty array if no window state 1897 * listeners are currently registered 1898 * 1899 * @see #addWindowStateListener 1900 * @see #removeWindowStateListener 1901 * @since 1.4 1902 */ 1903 public synchronized WindowStateListener[] getWindowStateListeners() { 1904 return getListeners(WindowStateListener.class); 1905 } 1906 1907 1908 /** 1909 * Returns an array of all the objects currently registered 1910 * as <code><em>Foo</em>Listener</code>s 1911 * upon this {@code Window}. 1912 * <code><em>Foo</em>Listener</code>s are registered using the 1913 * <code>add<em>Foo</em>Listener</code> method. 1914 * 1915 * <p> 1916 * 1917 * You can specify the {@code listenerType} argument 1918 * with a class literal, such as 1919 * <code><em>Foo</em>Listener.class</code>. 1920 * For example, you can query a 1921 * {@code Window} {@code w} 1922 * for its window listeners with the following code: 1923 * 1924 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre> 1925 * 1926 * If no such listeners exist, this method returns an empty array. 1927 * 1928 * @param listenerType the type of listeners requested; this parameter 1929 * should specify an interface that descends from 1930 * {@code java.util.EventListener} 1931 * @return an array of all objects registered as 1932 * <code><em>Foo</em>Listener</code>s on this window, 1933 * or an empty array if no such 1934 * listeners have been added 1935 * @exception ClassCastException if {@code listenerType} 1936 * doesn't specify a class or interface that implements 1937 * {@code java.util.EventListener} 1938 * @exception NullPointerException if {@code listenerType} is {@code null} 1939 * 1940 * @see #getWindowListeners 1941 * @since 1.3 1942 */ 1943 public <T extends EventListener> T[] getListeners(Class<T> listenerType) { 1944 EventListener l = null; 1945 if (listenerType == WindowFocusListener.class) { 1946 l = windowFocusListener; 1947 } else if (listenerType == WindowStateListener.class) { 1948 l = windowStateListener; 1949 } else if (listenerType == WindowListener.class) { 1950 l = windowListener; 1951 } else { 1952 return super.getListeners(listenerType); 1953 } 1954 return AWTEventMulticaster.getListeners(l, listenerType); 1955 } 1956 1957 // REMIND: remove when filtering is handled at lower level 1958 boolean eventEnabled(AWTEvent e) { 1959 switch(e.id) { 1960 case WindowEvent.WINDOW_OPENED: 1961 case WindowEvent.WINDOW_CLOSING: 1962 case WindowEvent.WINDOW_CLOSED: 1963 case WindowEvent.WINDOW_ICONIFIED: 1964 case WindowEvent.WINDOW_DEICONIFIED: 1965 case WindowEvent.WINDOW_ACTIVATED: 1966 case WindowEvent.WINDOW_DEACTIVATED: 1967 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 || 1968 windowListener != null) { 1969 return true; 1970 } 1971 return false; 1972 case WindowEvent.WINDOW_GAINED_FOCUS: 1973 case WindowEvent.WINDOW_LOST_FOCUS: 1974 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 || 1975 windowFocusListener != null) { 1976 return true; 1977 } 1978 return false; 1979 case WindowEvent.WINDOW_STATE_CHANGED: 1980 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 || 1981 windowStateListener != null) { 1982 return true; 1983 } 1984 return false; 1985 default: 1986 break; 1987 } 1988 return super.eventEnabled(e); 1989 } 1990 1991 /** 1992 * Processes events on this window. If the event is an 1993 * {@code WindowEvent}, it invokes the 1994 * {@code processWindowEvent} method, else it invokes its 1995 * superclass's {@code processEvent}. 1996 * <p>Note that if the event parameter is {@code null} 1997 * the behavior is unspecified and may result in an 1998 * exception. 1999 * 2000 * @param e the event 2001 */ 2002 protected void processEvent(AWTEvent e) { 2003 if (e instanceof WindowEvent) { 2004 switch (e.getID()) { 2005 case WindowEvent.WINDOW_OPENED: 2006 case WindowEvent.WINDOW_CLOSING: 2007 case WindowEvent.WINDOW_CLOSED: 2008 case WindowEvent.WINDOW_ICONIFIED: 2009 case WindowEvent.WINDOW_DEICONIFIED: 2010 case WindowEvent.WINDOW_ACTIVATED: 2011 case WindowEvent.WINDOW_DEACTIVATED: 2012 processWindowEvent((WindowEvent)e); 2013 break; 2014 case WindowEvent.WINDOW_GAINED_FOCUS: 2015 case WindowEvent.WINDOW_LOST_FOCUS: 2016 processWindowFocusEvent((WindowEvent)e); 2017 break; 2018 case WindowEvent.WINDOW_STATE_CHANGED: 2019 processWindowStateEvent((WindowEvent)e); 2020 break; 2021 } 2022 return; 2023 } 2024 super.processEvent(e); 2025 } 2026 2027 /** 2028 * Processes window events occurring on this window by 2029 * dispatching them to any registered WindowListener objects. 2030 * NOTE: This method will not be called unless window events 2031 * are enabled for this component; this happens when one of the 2032 * following occurs: 2033 * <ul> 2034 * <li>A WindowListener object is registered via 2035 * {@code addWindowListener} 2036 * <li>Window events are enabled via {@code enableEvents} 2037 * </ul> 2038 * <p>Note that if the event parameter is {@code null} 2039 * the behavior is unspecified and may result in an 2040 * exception. 2041 * 2042 * @param e the window event 2043 * @see Component#enableEvents 2044 */ 2045 protected void processWindowEvent(WindowEvent e) { 2046 WindowListener listener = windowListener; 2047 if (listener != null) { 2048 switch(e.getID()) { 2049 case WindowEvent.WINDOW_OPENED: 2050 listener.windowOpened(e); 2051 break; 2052 case WindowEvent.WINDOW_CLOSING: 2053 listener.windowClosing(e); 2054 break; 2055 case WindowEvent.WINDOW_CLOSED: 2056 listener.windowClosed(e); 2057 break; 2058 case WindowEvent.WINDOW_ICONIFIED: 2059 listener.windowIconified(e); 2060 break; 2061 case WindowEvent.WINDOW_DEICONIFIED: 2062 listener.windowDeiconified(e); 2063 break; 2064 case WindowEvent.WINDOW_ACTIVATED: 2065 listener.windowActivated(e); 2066 break; 2067 case WindowEvent.WINDOW_DEACTIVATED: 2068 listener.windowDeactivated(e); 2069 break; 2070 default: 2071 break; 2072 } 2073 } 2074 } 2075 2076 /** 2077 * Processes window focus event occuring on this window by 2078 * dispatching them to any registered WindowFocusListener objects. 2079 * NOTE: this method will not be called unless window focus events 2080 * are enabled for this window. This happens when one of the 2081 * following occurs: 2082 * <ul> 2083 * <li>a WindowFocusListener is registered via 2084 * {@code addWindowFocusListener} 2085 * <li>Window focus events are enabled via {@code enableEvents} 2086 * </ul> 2087 * <p>Note that if the event parameter is {@code null} 2088 * the behavior is unspecified and may result in an 2089 * exception. 2090 * 2091 * @param e the window focus event 2092 * @see Component#enableEvents 2093 * @since 1.4 2094 */ 2095 protected void processWindowFocusEvent(WindowEvent e) { 2096 WindowFocusListener listener = windowFocusListener; 2097 if (listener != null) { 2098 switch (e.getID()) { 2099 case WindowEvent.WINDOW_GAINED_FOCUS: 2100 listener.windowGainedFocus(e); 2101 break; 2102 case WindowEvent.WINDOW_LOST_FOCUS: 2103 listener.windowLostFocus(e); 2104 break; 2105 default: 2106 break; 2107 } 2108 } 2109 } 2110 2111 /** 2112 * Processes window state event occuring on this window by 2113 * dispatching them to any registered {@code WindowStateListener} 2114 * objects. 2115 * NOTE: this method will not be called unless window state events 2116 * are enabled for this window. This happens when one of the 2117 * following occurs: 2118 * <ul> 2119 * <li>a {@code WindowStateListener} is registered via 2120 * {@code addWindowStateListener} 2121 * <li>window state events are enabled via {@code enableEvents} 2122 * </ul> 2123 * <p>Note that if the event parameter is {@code null} 2124 * the behavior is unspecified and may result in an 2125 * exception. 2126 * 2127 * @param e the window state event 2128 * @see java.awt.Component#enableEvents 2129 * @since 1.4 2130 */ 2131 protected void processWindowStateEvent(WindowEvent e) { 2132 WindowStateListener listener = windowStateListener; 2133 if (listener != null) { 2134 switch (e.getID()) { 2135 case WindowEvent.WINDOW_STATE_CHANGED: 2136 listener.windowStateChanged(e); 2137 break; 2138 default: 2139 break; 2140 } 2141 } 2142 } 2143 2144 /** 2145 * Implements a debugging hook -- checks to see if 2146 * the user has typed <i>control-shift-F1</i>. If so, 2147 * the list of child windows is dumped to {@code System.out}. 2148 * @param e the keyboard event 2149 */ 2150 void preProcessKeyEvent(KeyEvent e) { 2151 // Dump the list of child windows to System.out. 2152 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 && 2153 e.isControlDown() && e.isShiftDown() && 2154 e.getID() == KeyEvent.KEY_PRESSED) { 2155 list(System.out, 0); 2156 } 2157 } 2158 2159 void postProcessKeyEvent(KeyEvent e) { 2160 // Do nothing 2161 } 2162 2163 2164 /** 2165 * Sets whether this window should always be above other windows. If 2166 * there are multiple always-on-top windows, their relative order is 2167 * unspecified and platform dependent. 2168 * <p> 2169 * If some other window is already always-on-top then the 2170 * relative order between these windows is unspecified (depends on 2171 * platform). No window can be brought to be over the always-on-top 2172 * window except maybe another always-on-top window. 2173 * <p> 2174 * All windows owned by an always-on-top window inherit this state and 2175 * automatically become always-on-top. If a window ceases to be 2176 * always-on-top, the windows that it owns will no longer be 2177 * always-on-top. When an always-on-top window is sent {@link #toBack 2178 * toBack}, its always-on-top state is set to {@code false}. 2179 * 2180 * <p> When this method is called on a window with a value of 2181 * {@code true}, and the window is visible and the platform 2182 * supports always-on-top for this window, the window is immediately 2183 * brought forward, "sticking" it in the top-most position. If the 2184 * window isn`t currently visible, this method sets the always-on-top 2185 * state to {@code true} but does not bring the window forward. 2186 * When the window is later shown, it will be always-on-top. 2187 * 2188 * <p> When this method is called on a window with a value of 2189 * {@code false} the always-on-top state is set to normal. The 2190 * window remains in the top-most position but it`s z-order can be 2191 * changed as for any other window. Calling this method with a value 2192 * of {@code false} on a window that has a normal state has no 2193 * effect. Setting the always-on-top state to false has no effect on 2194 * the relative z-order of the windows if there are no other 2195 * always-on-top windows. 2196 * 2197 * <p><b>Note</b>: some platforms might not support always-on-top 2198 * windows. To detect if always-on-top windows are supported by the 2199 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and 2200 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode 2201 * isn't supported by the toolkit or for this window, calling this 2202 * method has no effect. 2203 * <p> 2204 * If a SecurityManager is installed, the calling thread must be 2205 * granted the AWTPermission "setWindowAlwaysOnTop" in 2206 * order to set the value of this property. If this 2207 * permission is not granted, this method will throw a 2208 * SecurityException, and the current value of the property will 2209 * be left unchanged. 2210 * 2211 * @param alwaysOnTop true if the window should always be above other 2212 * windows 2213 * @throws SecurityException if the calling thread does not have 2214 * permission to set the value of always-on-top property 2215 * @see #isAlwaysOnTop 2216 * @see #toFront 2217 * @see #toBack 2218 * @see AWTPermission 2219 * @see #isAlwaysOnTopSupported 2220 * @see Toolkit#isAlwaysOnTopSupported 2221 * @since 1.5 2222 */ 2223 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException { 2224 SecurityManager security = System.getSecurityManager(); 2225 if (security != null) { 2226 security.checkPermission(SecurityConstants.AWT.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION); 2227 } 2228 2229 boolean oldAlwaysOnTop; 2230 synchronized(this) { 2231 oldAlwaysOnTop = this.alwaysOnTop; 2232 this.alwaysOnTop = alwaysOnTop; 2233 } 2234 if (oldAlwaysOnTop != alwaysOnTop ) { 2235 if (isAlwaysOnTopSupported()) { 2236 WindowPeer peer = (WindowPeer)this.peer; 2237 synchronized(getTreeLock()) { 2238 if (peer != null) { 2239 peer.updateAlwaysOnTopState(); 2240 } 2241 } 2242 } 2243 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop); 2244 } 2245 } 2246 2247 /** 2248 * Returns whether the always-on-top mode is supported for this 2249 * window. Some platforms may not support always-on-top windows, some 2250 * may support only some kinds of top-level windows; for example, 2251 * a platform may not support always-on-top modal dialogs. 2252 * @return {@code true}, if the always-on-top mode is 2253 * supported by the toolkit and for this window, 2254 * {@code false}, if always-on-top mode is not supported 2255 * for this window or toolkit doesn't support always-on-top windows. 2256 * @see #setAlwaysOnTop(boolean) 2257 * @see Toolkit#isAlwaysOnTopSupported 2258 * @since 1.6 2259 */ 2260 public boolean isAlwaysOnTopSupported() { 2261 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported(); 2262 } 2263 2264 2265 /** 2266 * Returns whether this window is an always-on-top window. 2267 * @return {@code true}, if the window is in always-on-top state, 2268 * {@code false} otherwise 2269 * @see #setAlwaysOnTop 2270 * @since 1.5 2271 */ 2272 public final boolean isAlwaysOnTop() { 2273 return alwaysOnTop; 2274 } 2275 2276 2277 /** 2278 * Returns the child Component of this Window that has focus if this Window 2279 * is focused; returns null otherwise. 2280 * 2281 * @return the child Component with focus, or null if this Window is not 2282 * focused 2283 * @see #getMostRecentFocusOwner 2284 * @see #isFocused 2285 */ 2286 public Component getFocusOwner() { 2287 return (isFocused()) 2288 ? KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2289 getFocusOwner() 2290 : null; 2291 } 2292 2293 /** 2294 * Returns the child Component of this Window that will receive the focus 2295 * when this Window is focused. If this Window is currently focused, this 2296 * method returns the same Component as {@code getFocusOwner()}. If 2297 * this Window is not focused, then the child Component that most recently 2298 * requested focus will be returned. If no child Component has ever 2299 * requested focus, and this is a focusable Window, then this Window's 2300 * initial focusable Component is returned. If no child Component has ever 2301 * requested focus, and this is a non-focusable Window, null is returned. 2302 * 2303 * @return the child Component that will receive focus when this Window is 2304 * focused 2305 * @see #getFocusOwner 2306 * @see #isFocused 2307 * @see #isFocusableWindow 2308 * @since 1.4 2309 */ 2310 public Component getMostRecentFocusOwner() { 2311 if (isFocused()) { 2312 return getFocusOwner(); 2313 } else { 2314 Component mostRecent = 2315 KeyboardFocusManager.getMostRecentFocusOwner(this); 2316 if (mostRecent != null) { 2317 return mostRecent; 2318 } else { 2319 return (isFocusableWindow()) 2320 ? getFocusTraversalPolicy().getInitialComponent(this) 2321 : null; 2322 } 2323 } 2324 } 2325 2326 /** 2327 * Returns whether this Window is active. Only a Frame or a Dialog may be 2328 * active. The native windowing system may denote the active Window or its 2329 * children with special decorations, such as a highlighted title bar. The 2330 * active Window is always either the focused Window, or the first Frame or 2331 * Dialog that is an owner of the focused Window. 2332 * 2333 * @return whether this is the active Window. 2334 * @see #isFocused 2335 * @since 1.4 2336 */ 2337 public boolean isActive() { 2338 return (KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2339 getActiveWindow() == this); 2340 } 2341 2342 /** 2343 * Returns whether this Window is focused. If there exists a focus owner, 2344 * the focused Window is the Window that is, or contains, that focus owner. 2345 * If there is no focus owner, then no Window is focused. 2346 * <p> 2347 * If the focused Window is a Frame or a Dialog it is also the active 2348 * Window. Otherwise, the active Window is the first Frame or Dialog that 2349 * is an owner of the focused Window. 2350 * 2351 * @return whether this is the focused Window. 2352 * @see #isActive 2353 * @since 1.4 2354 */ 2355 public boolean isFocused() { 2356 return (KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2357 getGlobalFocusedWindow() == this); 2358 } 2359 2360 /** 2361 * Gets a focus traversal key for this Window. (See {@code 2362 * setFocusTraversalKeys} for a full description of each key.) 2363 * <p> 2364 * If the traversal key has not been explicitly set for this Window, 2365 * then this Window's parent's traversal key is returned. If the 2366 * traversal key has not been explicitly set for any of this Window's 2367 * ancestors, then the current KeyboardFocusManager's default traversal key 2368 * is returned. 2369 * 2370 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, 2371 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, 2372 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or 2373 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS 2374 * @return the AWTKeyStroke for the specified key 2375 * @see Container#setFocusTraversalKeys 2376 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS 2377 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS 2378 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS 2379 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS 2380 * @throws IllegalArgumentException if id is not one of 2381 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, 2382 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, 2383 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or 2384 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS 2385 * @since 1.4 2386 */ 2387 @SuppressWarnings("unchecked") 2388 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) { 2389 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) { 2390 throw new IllegalArgumentException("invalid focus traversal key identifier"); 2391 } 2392 2393 // Okay to return Set directly because it is an unmodifiable view 2394 @SuppressWarnings("rawtypes") 2395 Set keystrokes = (focusTraversalKeys != null) 2396 ? focusTraversalKeys[id] 2397 : null; 2398 2399 if (keystrokes != null) { 2400 return keystrokes; 2401 } else { 2402 return KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2403 getDefaultFocusTraversalKeys(id); 2404 } 2405 } 2406 2407 /** 2408 * Does nothing because Windows must always be roots of a focus traversal 2409 * cycle. The passed-in value is ignored. 2410 * 2411 * @param focusCycleRoot this value is ignored 2412 * @see #isFocusCycleRoot 2413 * @see Container#setFocusTraversalPolicy 2414 * @see Container#getFocusTraversalPolicy 2415 * @since 1.4 2416 */ 2417 public final void setFocusCycleRoot(boolean focusCycleRoot) { 2418 } 2419 2420 /** 2421 * Always returns {@code true} because all Windows must be roots of a 2422 * focus traversal cycle. 2423 * 2424 * @return {@code true} 2425 * @see #setFocusCycleRoot 2426 * @see Container#setFocusTraversalPolicy 2427 * @see Container#getFocusTraversalPolicy 2428 * @since 1.4 2429 */ 2430 public final boolean isFocusCycleRoot() { 2431 return true; 2432 } 2433 2434 /** 2435 * Always returns {@code null} because Windows have no ancestors; they 2436 * represent the top of the Component hierarchy. 2437 * 2438 * @return {@code null} 2439 * @see Container#isFocusCycleRoot() 2440 * @since 1.4 2441 */ 2442 public final Container getFocusCycleRootAncestor() { 2443 return null; 2444 } 2445 2446 /** 2447 * Returns whether this Window can become the focused Window, that is, 2448 * whether this Window or any of its subcomponents can become the focus 2449 * owner. For a Frame or Dialog to be focusable, its focusable Window state 2450 * must be set to {@code true}. For a Window which is not a Frame or 2451 * Dialog to be focusable, its focusable Window state must be set to 2452 * {@code true}, its nearest owning Frame or Dialog must be 2453 * showing on the screen, and it must contain at least one Component in 2454 * its focus traversal cycle. If any of these conditions is not met, then 2455 * neither this Window nor any of its subcomponents can become the focus 2456 * owner. 2457 * 2458 * @return {@code true} if this Window can be the focused Window; 2459 * {@code false} otherwise 2460 * @see #getFocusableWindowState 2461 * @see #setFocusableWindowState 2462 * @see #isShowing 2463 * @see Component#isFocusable 2464 * @since 1.4 2465 */ 2466 public final boolean isFocusableWindow() { 2467 // If a Window/Frame/Dialog was made non-focusable, then it is always 2468 // non-focusable. 2469 if (!getFocusableWindowState()) { 2470 return false; 2471 } 2472 2473 // All other tests apply only to Windows. 2474 if (this instanceof Frame || this instanceof Dialog) { 2475 return true; 2476 } 2477 2478 // A Window must have at least one Component in its root focus 2479 // traversal cycle to be focusable. 2480 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) { 2481 return false; 2482 } 2483 2484 // A Window's nearest owning Frame or Dialog must be showing on the 2485 // screen. 2486 for (Window owner = getOwner(); owner != null; 2487 owner = owner.getOwner()) 2488 { 2489 if (owner instanceof Frame || owner instanceof Dialog) { 2490 return owner.isShowing(); 2491 } 2492 } 2493 2494 return false; 2495 } 2496 2497 /** 2498 * Returns whether this Window can become the focused Window if it meets 2499 * the other requirements outlined in {@code isFocusableWindow}. If 2500 * this method returns {@code false}, then 2501 * {@code isFocusableWindow} will return {@code false} as well. 2502 * If this method returns {@code true}, then 2503 * {@code isFocusableWindow} may return {@code true} or 2504 * {@code false} depending upon the other requirements which must be 2505 * met in order for a Window to be focusable. 2506 * <p> 2507 * By default, all Windows have a focusable Window state of 2508 * {@code true}. 2509 * 2510 * @return whether this Window can be the focused Window 2511 * @see #isFocusableWindow 2512 * @see #setFocusableWindowState 2513 * @see #isShowing 2514 * @see Component#setFocusable 2515 * @since 1.4 2516 */ 2517 public boolean getFocusableWindowState() { 2518 return focusableWindowState; 2519 } 2520 2521 /** 2522 * Sets whether this Window can become the focused Window if it meets 2523 * the other requirements outlined in {@code isFocusableWindow}. If 2524 * this Window's focusable Window state is set to {@code false}, then 2525 * {@code isFocusableWindow} will return {@code false}. If this 2526 * Window's focusable Window state is set to {@code true}, then 2527 * {@code isFocusableWindow} may return {@code true} or 2528 * {@code false} depending upon the other requirements which must be 2529 * met in order for a Window to be focusable. 2530 * <p> 2531 * Setting a Window's focusability state to {@code false} is the 2532 * standard mechanism for an application to identify to the AWT a Window 2533 * which will be used as a floating palette or toolbar, and thus should be 2534 * a non-focusable Window. 2535 * 2536 * Setting the focusability state on a visible {@code Window} 2537 * can have a delayed effect on some platforms — the actual 2538 * change may happen only when the {@code Window} becomes 2539 * hidden and then visible again. To ensure consistent behavior 2540 * across platforms, set the {@code Window}'s focusable state 2541 * when the {@code Window} is invisible and then show it. 2542 * 2543 * @param focusableWindowState whether this Window can be the focused 2544 * Window 2545 * @see #isFocusableWindow 2546 * @see #getFocusableWindowState 2547 * @see #isShowing 2548 * @see Component#setFocusable 2549 * @since 1.4 2550 */ 2551 public void setFocusableWindowState(boolean focusableWindowState) { 2552 boolean oldFocusableWindowState; 2553 synchronized (this) { 2554 oldFocusableWindowState = this.focusableWindowState; 2555 this.focusableWindowState = focusableWindowState; 2556 } 2557 WindowPeer peer = (WindowPeer)this.peer; 2558 if (peer != null) { 2559 peer.updateFocusableWindowState(); 2560 } 2561 firePropertyChange("focusableWindowState", oldFocusableWindowState, 2562 focusableWindowState); 2563 if (oldFocusableWindowState && !focusableWindowState && isFocused()) { 2564 for (Window owner = getOwner(); 2565 owner != null; 2566 owner = owner.getOwner()) 2567 { 2568 Component toFocus = 2569 KeyboardFocusManager.getMostRecentFocusOwner(owner); 2570 if (toFocus != null && toFocus.requestFocus(false, CausedFocusEvent.Cause.ACTIVATION)) { 2571 return; 2572 } 2573 } 2574 KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2575 clearGlobalFocusOwnerPriv(); 2576 } 2577 } 2578 2579 /** 2580 * Sets whether this window should receive focus on 2581 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}), 2582 * or being moved to the front (with a call to {@link #toFront}). 2583 * <p> 2584 * Note that {@link #setVisible setVisible(true)} may be called indirectly 2585 * (e.g. when showing an owner of the window makes the window to be shown). 2586 * {@link #toFront} may also be called indirectly (e.g. when 2587 * {@link #setVisible setVisible(true)} is called on already visible window). 2588 * In all such cases this property takes effect as well. 2589 * <p> 2590 * The value of the property is not inherited by owned windows. 2591 * 2592 * @param autoRequestFocus whether this window should be focused on 2593 * subsequently being shown or being moved to the front 2594 * @see #isAutoRequestFocus 2595 * @see #isFocusableWindow 2596 * @see #setVisible 2597 * @see #toFront 2598 * @since 1.7 2599 */ 2600 public void setAutoRequestFocus(boolean autoRequestFocus) { 2601 this.autoRequestFocus = autoRequestFocus; 2602 } 2603 2604 /** 2605 * Returns whether this window should receive focus on subsequently being shown 2606 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front 2607 * (with a call to {@link #toFront}). 2608 * <p> 2609 * By default, the window has {@code autoRequestFocus} value of {@code true}. 2610 * 2611 * @return {@code autoRequestFocus} value 2612 * @see #setAutoRequestFocus 2613 * @since 1.7 2614 */ 2615 public boolean isAutoRequestFocus() { 2616 return autoRequestFocus; 2617 } 2618 2619 /** 2620 * Adds a PropertyChangeListener to the listener list. The listener is 2621 * registered for all bound properties of this class, including the 2622 * following: 2623 * <ul> 2624 * <li>this Window's font ("font")</li> 2625 * <li>this Window's background color ("background")</li> 2626 * <li>this Window's foreground color ("foreground")</li> 2627 * <li>this Window's focusability ("focusable")</li> 2628 * <li>this Window's focus traversal keys enabled state 2629 * ("focusTraversalKeysEnabled")</li> 2630 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS 2631 * ("forwardFocusTraversalKeys")</li> 2632 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS 2633 * ("backwardFocusTraversalKeys")</li> 2634 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS 2635 * ("upCycleFocusTraversalKeys")</li> 2636 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS 2637 * ("downCycleFocusTraversalKeys")</li> 2638 * <li>this Window's focus traversal policy ("focusTraversalPolicy") 2639 * </li> 2640 * <li>this Window's focusable Window state ("focusableWindowState") 2641 * </li> 2642 * <li>this Window's always-on-top state("alwaysOnTop")</li> 2643 * </ul> 2644 * Note that if this Window is inheriting a bound property, then no 2645 * event will be fired in response to a change in the inherited property. 2646 * <p> 2647 * If listener is null, no exception is thrown and no action is performed. 2648 * 2649 * @param listener the PropertyChangeListener to be added 2650 * 2651 * @see Component#removePropertyChangeListener 2652 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener) 2653 */ 2654 public void addPropertyChangeListener(PropertyChangeListener listener) { 2655 super.addPropertyChangeListener(listener); 2656 } 2657 2658 /** 2659 * Adds a PropertyChangeListener to the listener list for a specific 2660 * property. The specified property may be user-defined, or one of the 2661 * following: 2662 * <ul> 2663 * <li>this Window's font ("font")</li> 2664 * <li>this Window's background color ("background")</li> 2665 * <li>this Window's foreground color ("foreground")</li> 2666 * <li>this Window's focusability ("focusable")</li> 2667 * <li>this Window's focus traversal keys enabled state 2668 * ("focusTraversalKeysEnabled")</li> 2669 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS 2670 * ("forwardFocusTraversalKeys")</li> 2671 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS 2672 * ("backwardFocusTraversalKeys")</li> 2673 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS 2674 * ("upCycleFocusTraversalKeys")</li> 2675 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS 2676 * ("downCycleFocusTraversalKeys")</li> 2677 * <li>this Window's focus traversal policy ("focusTraversalPolicy") 2678 * </li> 2679 * <li>this Window's focusable Window state ("focusableWindowState") 2680 * </li> 2681 * <li>this Window's always-on-top state("alwaysOnTop")</li> 2682 * </ul> 2683 * Note that if this Window is inheriting a bound property, then no 2684 * event will be fired in response to a change in the inherited property. 2685 * <p> 2686 * If listener is null, no exception is thrown and no action is performed. 2687 * 2688 * @param propertyName one of the property names listed above 2689 * @param listener the PropertyChangeListener to be added 2690 * 2691 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener) 2692 * @see Component#removePropertyChangeListener 2693 */ 2694 public void addPropertyChangeListener(String propertyName, 2695 PropertyChangeListener listener) { 2696 super.addPropertyChangeListener(propertyName, listener); 2697 } 2698 2699 /** 2700 * Indicates if this container is a validate root. 2701 * <p> 2702 * {@code Window} objects are the validate roots, and, therefore, they 2703 * override this method to return {@code true}. 2704 * 2705 * @return {@code true} 2706 * @since 1.7 2707 * @see java.awt.Container#isValidateRoot 2708 */ 2709 @Override 2710 public boolean isValidateRoot() { 2711 return true; 2712 } 2713 2714 /** 2715 * Dispatches an event to this window or one of its sub components. 2716 * @param e the event 2717 */ 2718 void dispatchEventImpl(AWTEvent e) { 2719 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) { 2720 invalidate(); 2721 validate(); 2722 } 2723 super.dispatchEventImpl(e); 2724 } 2725 2726 /** 2727 * @deprecated As of JDK version 1.1 2728 * replaced by {@code dispatchEvent(AWTEvent)}. 2729 */ 2730 @Deprecated 2731 public boolean postEvent(Event e) { 2732 if (handleEvent(e)) { 2733 e.consume(); 2734 return true; 2735 } 2736 return false; 2737 } 2738 2739 /** 2740 * Checks if this Window is showing on screen. 2741 * @see Component#setVisible 2742 */ 2743 public boolean isShowing() { 2744 return visible; 2745 } 2746 2747 boolean isDisposing() { 2748 return disposing; 2749 } 2750 2751 /** 2752 * @deprecated As of J2SE 1.4, replaced by 2753 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}. 2754 */ 2755 @Deprecated 2756 public void applyResourceBundle(ResourceBundle rb) { 2757 applyComponentOrientation(ComponentOrientation.getOrientation(rb)); 2758 } 2759 2760 /** 2761 * @deprecated As of J2SE 1.4, replaced by 2762 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}. 2763 */ 2764 @Deprecated 2765 public void applyResourceBundle(String rbName) { 2766 applyResourceBundle(ResourceBundle.getBundle(rbName)); 2767 } 2768 2769 /* 2770 * Support for tracking all windows owned by this window 2771 */ 2772 void addOwnedWindow(WeakReference<Window> weakWindow) { 2773 if (weakWindow != null) { 2774 synchronized(ownedWindowList) { 2775 // this if statement should really be an assert, but we don't 2776 // have asserts... 2777 if (!ownedWindowList.contains(weakWindow)) { 2778 ownedWindowList.addElement(weakWindow); 2779 } 2780 } 2781 } 2782 } 2783 2784 void removeOwnedWindow(WeakReference<Window> weakWindow) { 2785 if (weakWindow != null) { 2786 // synchronized block not required since removeElement is 2787 // already synchronized 2788 ownedWindowList.removeElement(weakWindow); 2789 } 2790 } 2791 2792 void connectOwnedWindow(Window child) { 2793 child.parent = this; 2794 addOwnedWindow(child.weakThis); 2795 } 2796 2797 private void addToWindowList() { 2798 synchronized (Window.class) { 2799 @SuppressWarnings("unchecked") 2800 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class); 2801 if (windowList == null) { 2802 windowList = new Vector<WeakReference<Window>>(); 2803 appContext.put(Window.class, windowList); 2804 } 2805 windowList.add(weakThis); 2806 } 2807 } 2808 2809 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) { 2810 synchronized (Window.class) { 2811 @SuppressWarnings("unchecked") 2812 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class); 2813 if (windowList != null) { 2814 windowList.remove(weakThis); 2815 } 2816 } 2817 } 2818 2819 private void removeFromWindowList() { 2820 removeFromWindowList(appContext, weakThis); 2821 } 2822 2823 /** 2824 * Window type. 2825 * 2826 * Synchronization: ObjectLock 2827 */ 2828 private Type type = Type.NORMAL; 2829 2830 /** 2831 * Sets the type of the window. 2832 * 2833 * This method can only be called while the window is not displayable. 2834 * 2835 * @throws IllegalComponentStateException if the window 2836 * is displayable. 2837 * @throws IllegalArgumentException if the type is {@code null} 2838 * @see Component#isDisplayable 2839 * @see #getType 2840 * @since 1.7 2841 */ 2842 public void setType(Type type) { 2843 if (type == null) { 2844 throw new IllegalArgumentException("type should not be null."); 2845 } 2846 synchronized (getTreeLock()) { 2847 if (isDisplayable()) { 2848 throw new IllegalComponentStateException( 2849 "The window is displayable."); 2850 } 2851 synchronized (getObjectLock()) { 2852 this.type = type; 2853 } 2854 } 2855 } 2856 2857 /** 2858 * Returns the type of the window. 2859 * 2860 * @see #setType 2861 * @since 1.7 2862 */ 2863 public Type getType() { 2864 synchronized (getObjectLock()) { 2865 return type; 2866 } 2867 } 2868 2869 /** 2870 * The window serialized data version. 2871 * 2872 * @serial 2873 */ 2874 private int windowSerializedDataVersion = 2; 2875 2876 /** 2877 * Writes default serializable fields to stream. Writes 2878 * a list of serializable {@code WindowListener}s and 2879 * {@code WindowFocusListener}s as optional data. 2880 * Writes a list of child windows as optional data. 2881 * Writes a list of icon images as optional data 2882 * 2883 * @param s the {@code ObjectOutputStream} to write 2884 * @serialData {@code null} terminated sequence of 2885 * 0 or more pairs; the pair consists of a {@code String} 2886 * and {@code Object}; the {@code String} 2887 * indicates the type of object and is one of the following: 2888 * {@code windowListenerK} indicating a 2889 * {@code WindowListener} object; 2890 * {@code windowFocusWindowK} indicating a 2891 * {@code WindowFocusListener} object; 2892 * {@code ownedWindowK} indicating a child 2893 * {@code Window} object 2894 * 2895 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener) 2896 * @see Component#windowListenerK 2897 * @see Component#windowFocusListenerK 2898 * @see Component#ownedWindowK 2899 * @see #readObject(ObjectInputStream) 2900 */ 2901 private void writeObject(ObjectOutputStream s) throws IOException { 2902 synchronized (this) { 2903 // Update old focusMgr fields so that our object stream can be read 2904 // by previous releases 2905 focusMgr = new FocusManager(); 2906 focusMgr.focusRoot = this; 2907 focusMgr.focusOwner = getMostRecentFocusOwner(); 2908 2909 s.defaultWriteObject(); 2910 2911 // Clear fields so that we don't keep extra references around 2912 focusMgr = null; 2913 2914 AWTEventMulticaster.save(s, windowListenerK, windowListener); 2915 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener); 2916 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener); 2917 } 2918 2919 s.writeObject(null); 2920 2921 synchronized (ownedWindowList) { 2922 for (int i = 0; i < ownedWindowList.size(); i++) { 2923 Window child = ownedWindowList.elementAt(i).get(); 2924 if (child != null) { 2925 s.writeObject(ownedWindowK); 2926 s.writeObject(child); 2927 } 2928 } 2929 } 2930 s.writeObject(null); 2931 2932 //write icon array 2933 if (icons != null) { 2934 for (Image i : icons) { 2935 if (i instanceof Serializable) { 2936 s.writeObject(i); 2937 } 2938 } 2939 } 2940 s.writeObject(null); 2941 } 2942 2943 // 2944 // Part of deserialization procedure to be called before 2945 // user's code. 2946 // 2947 private void initDeserializedWindow() { 2948 setWarningString(); 2949 inputContextLock = new Object(); 2950 2951 // Deserialized Windows are not yet visible. 2952 visible = false; 2953 2954 weakThis = new WeakReference<>(this); 2955 2956 anchor = new Object(); 2957 sun.java2d.Disposer.addRecord(anchor, new WindowDisposerRecord(appContext, this)); 2958 2959 addToWindowList(); 2960 initGC(null); 2961 } 2962 2963 private void deserializeResources(ObjectInputStream s) 2964 throws ClassNotFoundException, IOException, HeadlessException { 2965 ownedWindowList = new Vector<>(); 2966 2967 if (windowSerializedDataVersion < 2) { 2968 // Translate old-style focus tracking to new model. For 1.4 and 2969 // later releases, we'll rely on the Window's initial focusable 2970 // Component. 2971 if (focusMgr != null) { 2972 if (focusMgr.focusOwner != null) { 2973 KeyboardFocusManager. 2974 setMostRecentFocusOwner(this, focusMgr.focusOwner); 2975 } 2976 } 2977 2978 // This field is non-transient and relies on default serialization. 2979 // However, the default value is insufficient, so we need to set 2980 // it explicitly for object data streams prior to 1.4. 2981 focusableWindowState = true; 2982 2983 2984 } 2985 2986 Object keyOrNull; 2987 while(null != (keyOrNull = s.readObject())) { 2988 String key = ((String)keyOrNull).intern(); 2989 2990 if (windowListenerK == key) { 2991 addWindowListener((WindowListener)(s.readObject())); 2992 } else if (windowFocusListenerK == key) { 2993 addWindowFocusListener((WindowFocusListener)(s.readObject())); 2994 } else if (windowStateListenerK == key) { 2995 addWindowStateListener((WindowStateListener)(s.readObject())); 2996 } else // skip value for unrecognized key 2997 s.readObject(); 2998 } 2999 3000 try { 3001 while (null != (keyOrNull = s.readObject())) { 3002 String key = ((String)keyOrNull).intern(); 3003 3004 if (ownedWindowK == key) 3005 connectOwnedWindow((Window) s.readObject()); 3006 3007 else // skip value for unrecognized key 3008 s.readObject(); 3009 } 3010 3011 //read icons 3012 Object obj = s.readObject(); //Throws OptionalDataException 3013 //for pre1.6 objects. 3014 icons = new ArrayList<Image>(); //Frame.readObject() assumes 3015 //pre1.6 version if icons is null. 3016 while (obj != null) { 3017 if (obj instanceof Image) { 3018 icons.add((Image)obj); 3019 } 3020 obj = s.readObject(); 3021 } 3022 } 3023 catch (OptionalDataException e) { 3024 // 1.1 serialized form 3025 // ownedWindowList will be updated by Frame.readObject 3026 } 3027 3028 } 3029 3030 /** 3031 * Reads the {@code ObjectInputStream} and an optional 3032 * list of listeners to receive various events fired by 3033 * the component; also reads a list of 3034 * (possibly {@code null}) child windows. 3035 * Unrecognized keys or values will be ignored. 3036 * 3037 * @param s the {@code ObjectInputStream} to read 3038 * @exception HeadlessException if 3039 * {@code GraphicsEnvironment.isHeadless} returns 3040 * {@code true} 3041 * @see java.awt.GraphicsEnvironment#isHeadless 3042 * @see #writeObject 3043 */ 3044 private void readObject(ObjectInputStream s) 3045 throws ClassNotFoundException, IOException, HeadlessException 3046 { 3047 GraphicsEnvironment.checkHeadless(); 3048 initDeserializedWindow(); 3049 ObjectInputStream.GetField f = s.readFields(); 3050 3051 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests); 3052 state = f.get("state", 0); 3053 focusableWindowState = f.get("focusableWindowState", true); 3054 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1); 3055 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp); 3056 // Note: 1.4 (or later) doesn't use focusMgr 3057 focusMgr = (FocusManager)f.get("focusMgr", null); 3058 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType) 3059 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE); 3060 setModalExclusionType(et); // since 6.0 3061 boolean aot = f.get("alwaysOnTop", false); 3062 if(aot) { 3063 setAlwaysOnTop(aot); // since 1.5; subject to permission check 3064 } 3065 shape = (Shape)f.get("shape", null); 3066 opacity = (Float)f.get("opacity", 1.0f); 3067 3068 this.securityWarningWidth = 0; 3069 this.securityWarningHeight = 0; 3070 this.securityWarningPointX = 2.0; 3071 this.securityWarningPointY = 0.0; 3072 this.securityWarningAlignmentX = RIGHT_ALIGNMENT; 3073 this.securityWarningAlignmentY = TOP_ALIGNMENT; 3074 3075 deserializeResources(s); 3076 } 3077 3078 /* 3079 * --- Accessibility Support --- 3080 * 3081 */ 3082 3083 /** 3084 * Gets the AccessibleContext associated with this Window. 3085 * For windows, the AccessibleContext takes the form of an 3086 * AccessibleAWTWindow. 3087 * A new AccessibleAWTWindow instance is created if necessary. 3088 * 3089 * @return an AccessibleAWTWindow that serves as the 3090 * AccessibleContext of this Window 3091 * @since 1.3 3092 */ 3093 public AccessibleContext getAccessibleContext() { 3094 if (accessibleContext == null) { 3095 accessibleContext = new AccessibleAWTWindow(); 3096 } 3097 return accessibleContext; 3098 } 3099 3100 /** 3101 * This class implements accessibility support for the 3102 * {@code Window} class. It provides an implementation of the 3103 * Java Accessibility API appropriate to window user-interface elements. 3104 * @since 1.3 3105 */ 3106 protected class AccessibleAWTWindow extends AccessibleAWTContainer 3107 { 3108 /* 3109 * JDK 1.3 serialVersionUID 3110 */ 3111 private static final long serialVersionUID = 4215068635060671780L; 3112 3113 /** 3114 * Get the role of this object. 3115 * 3116 * @return an instance of AccessibleRole describing the role of the 3117 * object 3118 * @see javax.accessibility.AccessibleRole 3119 */ 3120 public AccessibleRole getAccessibleRole() { 3121 return AccessibleRole.WINDOW; 3122 } 3123 3124 /** 3125 * Get the state of this object. 3126 * 3127 * @return an instance of AccessibleStateSet containing the current 3128 * state set of the object 3129 * @see javax.accessibility.AccessibleState 3130 */ 3131 public AccessibleStateSet getAccessibleStateSet() { 3132 AccessibleStateSet states = super.getAccessibleStateSet(); 3133 if (getFocusOwner() != null) { 3134 states.add(AccessibleState.ACTIVE); 3135 } 3136 return states; 3137 } 3138 3139 } // inner class AccessibleAWTWindow 3140 3141 @Override 3142 void setGraphicsConfiguration(GraphicsConfiguration gc) { 3143 if (gc == null) { 3144 gc = GraphicsEnvironment. 3145 getLocalGraphicsEnvironment(). 3146 getDefaultScreenDevice(). 3147 getDefaultConfiguration(); 3148 } 3149 synchronized (getTreeLock()) { 3150 super.setGraphicsConfiguration(gc); 3151 if (log.isLoggable(PlatformLogger.Level.FINER)) { 3152 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this); 3153 } 3154 } 3155 } 3156 3157 /** 3158 * Sets the location of the window relative to the specified 3159 * component according to the following scenarios. 3160 * <p> 3161 * The target screen mentioned below is a screen to which 3162 * the window should be placed after the setLocationRelativeTo 3163 * method is called. 3164 * <ul> 3165 * <li>If the component is {@code null}, or the {@code 3166 * GraphicsConfiguration} associated with this component is 3167 * {@code null}, the window is placed in the center of the 3168 * screen. The center point can be obtained with the {@link 3169 * GraphicsEnvironment#getCenterPoint 3170 * GraphicsEnvironment.getCenterPoint} method. 3171 * <li>If the component is not {@code null}, but it is not 3172 * currently showing, the window is placed in the center of 3173 * the target screen defined by the {@code 3174 * GraphicsConfiguration} associated with this component. 3175 * <li>If the component is not {@code null} and is shown on 3176 * the screen, then the window is located in such a way that 3177 * the center of the window coincides with the center of the 3178 * component. 3179 * </ul> 3180 * <p> 3181 * If the screens configuration does not allow the window to 3182 * be moved from one screen to another, then the window is 3183 * only placed at the location determined according to the 3184 * above conditions and its {@code GraphicsConfiguration} is 3185 * not changed. 3186 * <p> 3187 * <b>Note</b>: If the lower edge of the window is out of the screen, 3188 * then the window is placed to the side of the {@code Component} 3189 * that is closest to the center of the screen. So if the 3190 * component is on the right part of the screen, the window 3191 * is placed to its left, and vice versa. 3192 * <p> 3193 * If after the window location has been calculated, the upper, 3194 * left, or right edge of the window is out of the screen, 3195 * then the window is located in such a way that the upper, 3196 * left, or right edge of the window coincides with the 3197 * corresponding edge of the screen. If both left and right 3198 * edges of the window are out of the screen, the window is 3199 * placed at the left side of the screen. The similar placement 3200 * will occur if both top and bottom edges are out of the screen. 3201 * In that case, the window is placed at the top side of the screen. 3202 * <p> 3203 * The method changes the geometry-related data. Therefore, 3204 * the native windowing system may ignore such requests, or it may modify 3205 * the requested data, so that the {@code Window} object is placed and sized 3206 * in a way that corresponds closely to the desktop settings. 3207 * 3208 * @param c the component in relation to which the window's location 3209 * is determined 3210 * @see java.awt.GraphicsEnvironment#getCenterPoint 3211 * @since 1.4 3212 */ 3213 public void setLocationRelativeTo(Component c) { 3214 // target location 3215 int dx = 0, dy = 0; 3216 // target GC 3217 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode(); 3218 Rectangle gcBounds = gc.getBounds(); 3219 3220 Dimension windowSize = getSize(); 3221 3222 // search a top-level of c 3223 Window componentWindow = SunToolkit.getContainingWindow(c); 3224 if ((c == null) || (componentWindow == null)) { 3225 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 3226 gc = ge.getDefaultScreenDevice().getDefaultConfiguration(); 3227 gcBounds = gc.getBounds(); 3228 Point centerPoint = ge.getCenterPoint(); 3229 dx = centerPoint.x - windowSize.width / 2; 3230 dy = centerPoint.y - windowSize.height / 2; 3231 } else if (!c.isShowing()) { 3232 gc = componentWindow.getGraphicsConfiguration(); 3233 gcBounds = gc.getBounds(); 3234 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2; 3235 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2; 3236 } else { 3237 gc = componentWindow.getGraphicsConfiguration(); 3238 gcBounds = gc.getBounds(); 3239 Dimension compSize = c.getSize(); 3240 Point compLocation = c.getLocationOnScreen(); 3241 dx = compLocation.x + ((compSize.width - windowSize.width) / 2); 3242 dy = compLocation.y + ((compSize.height - windowSize.height) / 2); 3243 3244 // Adjust for bottom edge being offscreen 3245 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3246 dy = gcBounds.y + gcBounds.height - windowSize.height; 3247 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) { 3248 dx = compLocation.x + compSize.width; 3249 } else { 3250 dx = compLocation.x - windowSize.width; 3251 } 3252 } 3253 } 3254 3255 // Avoid being placed off the edge of the screen: 3256 // bottom 3257 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3258 dy = gcBounds.y + gcBounds.height - windowSize.height; 3259 } 3260 // top 3261 if (dy < gcBounds.y) { 3262 dy = gcBounds.y; 3263 } 3264 // right 3265 if (dx + windowSize.width > gcBounds.x + gcBounds.width) { 3266 dx = gcBounds.x + gcBounds.width - windowSize.width; 3267 } 3268 // left 3269 if (dx < gcBounds.x) { 3270 dx = gcBounds.x; 3271 } 3272 3273 setLocation(dx, dy); 3274 } 3275 3276 /** 3277 * Overridden from Component. Top-level Windows should not propagate a 3278 * MouseWheelEvent beyond themselves into their owning Windows. 3279 */ 3280 void deliverMouseWheelToAncestor(MouseWheelEvent e) {} 3281 3282 /** 3283 * Overridden from Component. Top-level Windows don't dispatch to ancestors 3284 */ 3285 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;} 3286 3287 /** 3288 * Creates a new strategy for multi-buffering on this component. 3289 * Multi-buffering is useful for rendering performance. This method 3290 * attempts to create the best strategy available with the number of 3291 * buffers supplied. It will always create a {@code BufferStrategy} 3292 * with that number of buffers. 3293 * A page-flipping strategy is attempted first, then a blitting strategy 3294 * using accelerated buffers. Finally, an unaccelerated blitting 3295 * strategy is used. 3296 * <p> 3297 * Each time this method is called, 3298 * the existing buffer strategy for this component is discarded. 3299 * @param numBuffers number of buffers to create 3300 * @exception IllegalArgumentException if numBuffers is less than 1. 3301 * @exception IllegalStateException if the component is not displayable 3302 * @see #isDisplayable 3303 * @see #getBufferStrategy 3304 * @since 1.4 3305 */ 3306 public void createBufferStrategy(int numBuffers) { 3307 super.createBufferStrategy(numBuffers); 3308 } 3309 3310 /** 3311 * Creates a new strategy for multi-buffering on this component with the 3312 * required buffer capabilities. This is useful, for example, if only 3313 * accelerated memory or page flipping is desired (as specified by the 3314 * buffer capabilities). 3315 * <p> 3316 * Each time this method 3317 * is called, the existing buffer strategy for this component is discarded. 3318 * @param numBuffers number of buffers to create, including the front buffer 3319 * @param caps the required capabilities for creating the buffer strategy; 3320 * cannot be {@code null} 3321 * @exception AWTException if the capabilities supplied could not be 3322 * supported or met; this may happen, for example, if there is not enough 3323 * accelerated memory currently available, or if page flipping is specified 3324 * but not possible. 3325 * @exception IllegalArgumentException if numBuffers is less than 1, or if 3326 * caps is {@code null} 3327 * @see #getBufferStrategy 3328 * @since 1.4 3329 */ 3330 public void createBufferStrategy(int numBuffers, 3331 BufferCapabilities caps) throws AWTException { 3332 super.createBufferStrategy(numBuffers, caps); 3333 } 3334 3335 /** 3336 * Returns the {@code BufferStrategy} used by this component. This 3337 * method will return null if a {@code BufferStrategy} has not yet 3338 * been created or has been disposed. 3339 * 3340 * @return the buffer strategy used by this component 3341 * @see #createBufferStrategy 3342 * @since 1.4 3343 */ 3344 public BufferStrategy getBufferStrategy() { 3345 return super.getBufferStrategy(); 3346 } 3347 3348 Component getTemporaryLostComponent() { 3349 return temporaryLostComponent; 3350 } 3351 Component setTemporaryLostComponent(Component component) { 3352 Component previousComp = temporaryLostComponent; 3353 // Check that "component" is an acceptable focus owner and don't store it otherwise 3354 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS 3355 if (component == null || component.canBeFocusOwner()) { 3356 temporaryLostComponent = component; 3357 } else { 3358 temporaryLostComponent = null; 3359 } 3360 return previousComp; 3361 } 3362 3363 /** 3364 * Checks whether this window can contain focus owner. 3365 * Verifies that it is focusable and as container it can container focus owner. 3366 * @since 1.5 3367 */ 3368 boolean canContainFocusOwner(Component focusOwnerCandidate) { 3369 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow(); 3370 } 3371 3372 private boolean locationByPlatform = locationByPlatformProp; 3373 3374 3375 /** 3376 * Sets whether this Window should appear at the default location for the 3377 * native windowing system or at the current location (returned by 3378 * {@code getLocation}) the next time the Window is made visible. 3379 * This behavior resembles a native window shown without programmatically 3380 * setting its location. Most windowing systems cascade windows if their 3381 * locations are not explicitly set. The actual location is determined once the 3382 * window is shown on the screen. 3383 * <p> 3384 * This behavior can also be enabled by setting the System Property 3385 * "java.awt.Window.locationByPlatform" to "true", though calls to this method 3386 * take precedence. 3387 * <p> 3388 * Calls to {@code setVisible}, {@code setLocation} and 3389 * {@code setBounds} after calling {@code setLocationByPlatform} clear 3390 * this property of the Window. 3391 * <p> 3392 * For example, after the following code is executed: 3393 * <pre> 3394 * setLocationByPlatform(true); 3395 * setVisible(true); 3396 * boolean flag = isLocationByPlatform(); 3397 * </pre> 3398 * The window will be shown at platform's default location and 3399 * {@code flag} will be {@code false}. 3400 * <p> 3401 * In the following sample: 3402 * <pre> 3403 * setLocationByPlatform(true); 3404 * setLocation(10, 10); 3405 * boolean flag = isLocationByPlatform(); 3406 * setVisible(true); 3407 * </pre> 3408 * The window will be shown at (10, 10) and {@code flag} will be 3409 * {@code false}. 3410 * 3411 * @param locationByPlatform {@code true} if this Window should appear 3412 * at the default location, {@code false} if at the current location 3413 * @throws IllegalComponentStateException if the window 3414 * is showing on screen and locationByPlatform is {@code true}. 3415 * @see #setLocation 3416 * @see #isShowing 3417 * @see #setVisible 3418 * @see #isLocationByPlatform 3419 * @see java.lang.System#getProperty(String) 3420 * @since 1.5 3421 */ 3422 public void setLocationByPlatform(boolean locationByPlatform) { 3423 synchronized (getTreeLock()) { 3424 if (locationByPlatform && isShowing()) { 3425 throw new IllegalComponentStateException("The window is showing on screen."); 3426 } 3427 this.locationByPlatform = locationByPlatform; 3428 } 3429 } 3430 3431 /** 3432 * Returns {@code true} if this Window will appear at the default location 3433 * for the native windowing system the next time this Window is made visible. 3434 * This method always returns {@code false} if the Window is showing on the 3435 * screen. 3436 * 3437 * @return whether this Window will appear at the default location 3438 * @see #setLocationByPlatform 3439 * @see #isShowing 3440 * @since 1.5 3441 */ 3442 public boolean isLocationByPlatform() { 3443 synchronized (getTreeLock()) { 3444 return locationByPlatform; 3445 } 3446 } 3447 3448 /** 3449 * {@inheritDoc} 3450 * <p> 3451 * The {@code width} or {@code height} values 3452 * are automatically enlarged if either is less than 3453 * the minimum size as specified by previous call to 3454 * {@code setMinimumSize}. 3455 * <p> 3456 * The method changes the geometry-related data. Therefore, 3457 * the native windowing system may ignore such requests, or it may modify 3458 * the requested data, so that the {@code Window} object is placed and sized 3459 * in a way that corresponds closely to the desktop settings. 3460 * 3461 * @see #getBounds 3462 * @see #setLocation(int, int) 3463 * @see #setLocation(Point) 3464 * @see #setSize(int, int) 3465 * @see #setSize(Dimension) 3466 * @see #setMinimumSize 3467 * @see #setLocationByPlatform 3468 * @see #isLocationByPlatform 3469 * @since 1.6 3470 */ 3471 public void setBounds(int x, int y, int width, int height) { 3472 synchronized (getTreeLock()) { 3473 if (getBoundsOp() == ComponentPeer.SET_LOCATION || 3474 getBoundsOp() == ComponentPeer.SET_BOUNDS) 3475 { 3476 locationByPlatform = false; 3477 } 3478 super.setBounds(x, y, width, height); 3479 } 3480 } 3481 3482 /** 3483 * {@inheritDoc} 3484 * <p> 3485 * The {@code r.width} or {@code r.height} values 3486 * will be automatically enlarged if either is less than 3487 * the minimum size as specified by previous call to 3488 * {@code setMinimumSize}. 3489 * <p> 3490 * The method changes the geometry-related data. Therefore, 3491 * the native windowing system may ignore such requests, or it may modify 3492 * the requested data, so that the {@code Window} object is placed and sized 3493 * in a way that corresponds closely to the desktop settings. 3494 * 3495 * @see #getBounds 3496 * @see #setLocation(int, int) 3497 * @see #setLocation(Point) 3498 * @see #setSize(int, int) 3499 * @see #setSize(Dimension) 3500 * @see #setMinimumSize 3501 * @see #setLocationByPlatform 3502 * @see #isLocationByPlatform 3503 * @since 1.6 3504 */ 3505 public void setBounds(Rectangle r) { 3506 setBounds(r.x, r.y, r.width, r.height); 3507 } 3508 3509 /** 3510 * Determines whether this component will be displayed on the screen. 3511 * @return {@code true} if the component and all of its ancestors 3512 * until a toplevel window are visible, {@code false} otherwise 3513 */ 3514 boolean isRecursivelyVisible() { 3515 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible. 3516 // We're overriding isRecursivelyVisible to implement this policy. 3517 return visible; 3518 } 3519 3520 3521 // ******************** SHAPES & TRANSPARENCY CODE ******************** 3522 3523 /** 3524 * Returns the opacity of the window. 3525 * 3526 * @return the opacity of the window 3527 * 3528 * @see Window#setOpacity(float) 3529 * @see GraphicsDevice.WindowTranslucency 3530 * 3531 * @since 1.7 3532 */ 3533 public float getOpacity() { 3534 synchronized (getTreeLock()) { 3535 return opacity; 3536 } 3537 } 3538 3539 /** 3540 * Sets the opacity of the window. 3541 * <p> 3542 * The opacity value is in the range [0..1]. Note that setting the opacity 3543 * level of 0 may or may not disable the mouse event handling on this 3544 * window. This is a platform-dependent behavior. 3545 * <p> 3546 * The following conditions must be met in order to set the opacity value 3547 * less than {@code 1.0f}: 3548 * <ul> 3549 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3550 * translucency must be supported by the underlying system 3551 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3552 * and {@link Dialog#setUndecorated}) 3553 * <li>The window must not be in full-screen mode (see {@link 3554 * GraphicsDevice#setFullScreenWindow(Window)}) 3555 * </ul> 3556 * <p> 3557 * If the requested opacity value is less than {@code 1.0f}, and any of the 3558 * above conditions are not met, the window opacity will not change, 3559 * and the {@code IllegalComponentStateException} will be thrown. 3560 * <p> 3561 * The translucency levels of individual pixels may also be effected by the 3562 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3563 * current shape of this window (see {@link #setShape(Shape)}). 3564 * 3565 * @param opacity the opacity level to set to the window 3566 * 3567 * @throws IllegalArgumentException if the opacity is out of the range 3568 * [0..1] 3569 * @throws IllegalComponentStateException if the window is decorated and 3570 * the opacity is less than {@code 1.0f} 3571 * @throws IllegalComponentStateException if the window is in full screen 3572 * mode, and the opacity is less than {@code 1.0f} 3573 * @throws UnsupportedOperationException if the {@code 3574 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3575 * translucency is not supported and the opacity is less than 3576 * {@code 1.0f} 3577 * 3578 * @see Window#getOpacity 3579 * @see Window#setBackground(Color) 3580 * @see Window#setShape(Shape) 3581 * @see Frame#isUndecorated 3582 * @see Dialog#isUndecorated 3583 * @see GraphicsDevice.WindowTranslucency 3584 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3585 * 3586 * @since 1.7 3587 */ 3588 public void setOpacity(float opacity) { 3589 synchronized (getTreeLock()) { 3590 if (opacity < 0.0f || opacity > 1.0f) { 3591 throw new IllegalArgumentException( 3592 "The value of opacity should be in the range [0.0f .. 1.0f]."); 3593 } 3594 if (opacity < 1.0f) { 3595 GraphicsConfiguration gc = getGraphicsConfiguration(); 3596 GraphicsDevice gd = gc.getDevice(); 3597 if (gc.getDevice().getFullScreenWindow() == this) { 3598 throw new IllegalComponentStateException( 3599 "Setting opacity for full-screen window is not supported."); 3600 } 3601 if (!gd.isWindowTranslucencySupported( 3602 GraphicsDevice.WindowTranslucency.TRANSLUCENT)) 3603 { 3604 throw new UnsupportedOperationException( 3605 "TRANSLUCENT translucency is not supported."); 3606 } 3607 } 3608 this.opacity = opacity; 3609 WindowPeer peer = (WindowPeer)getPeer(); 3610 if (peer != null) { 3611 peer.setOpacity(opacity); 3612 } 3613 } 3614 } 3615 3616 /** 3617 * Returns the shape of the window. 3618 * 3619 * The value returned by this method may not be the same as 3620 * previously set with {@code setShape(shape)}, but it is guaranteed 3621 * to represent the same shape. 3622 * 3623 * @return the shape of the window or {@code null} if no 3624 * shape is specified for the window 3625 * 3626 * @see Window#setShape(Shape) 3627 * @see GraphicsDevice.WindowTranslucency 3628 * 3629 * @since 1.7 3630 */ 3631 public Shape getShape() { 3632 synchronized (getTreeLock()) { 3633 return shape == null ? null : new Path2D.Float(shape); 3634 } 3635 } 3636 3637 /** 3638 * Sets the shape of the window. 3639 * <p> 3640 * Setting a shape cuts off some parts of the window. Only the parts that 3641 * belong to the given {@link Shape} remain visible and clickable. If 3642 * the shape argument is {@code null}, this method restores the default 3643 * shape, making the window rectangular on most platforms. 3644 * <p> 3645 * The following conditions must be met to set a non-null shape: 3646 * <ul> 3647 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3648 * PERPIXEL_TRANSPARENT} translucency must be supported by the 3649 * underlying system 3650 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3651 * and {@link Dialog#setUndecorated}) 3652 * <li>The window must not be in full-screen mode (see {@link 3653 * GraphicsDevice#setFullScreenWindow(Window)}) 3654 * </ul> 3655 * <p> 3656 * If the requested shape is not {@code null}, and any of the above 3657 * conditions are not met, the shape of this window will not change, 3658 * and either the {@code UnsupportedOperationException} or {@code 3659 * IllegalComponentStateException} will be thrown. 3660 * <p> 3661 * The tranlucency levels of individual pixels may also be effected by the 3662 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3663 * opacity value (see {@link #setOpacity(float)}). See {@link 3664 * GraphicsDevice.WindowTranslucency} for more details. 3665 * 3666 * @param shape the shape to set to the window 3667 * 3668 * @throws IllegalComponentStateException if the shape is not {@code 3669 * null} and the window is decorated 3670 * @throws IllegalComponentStateException if the shape is not {@code 3671 * null} and the window is in full-screen mode 3672 * @throws UnsupportedOperationException if the shape is not {@code 3673 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3674 * PERPIXEL_TRANSPARENT} translucency is not supported 3675 * 3676 * @see Window#getShape() 3677 * @see Window#setBackground(Color) 3678 * @see Window#setOpacity(float) 3679 * @see Frame#isUndecorated 3680 * @see Dialog#isUndecorated 3681 * @see GraphicsDevice.WindowTranslucency 3682 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3683 * 3684 * @since 1.7 3685 */ 3686 public void setShape(Shape shape) { 3687 synchronized (getTreeLock()) { 3688 if (shape != null) { 3689 GraphicsConfiguration gc = getGraphicsConfiguration(); 3690 GraphicsDevice gd = gc.getDevice(); 3691 if (gc.getDevice().getFullScreenWindow() == this) { 3692 throw new IllegalComponentStateException( 3693 "Setting shape for full-screen window is not supported."); 3694 } 3695 if (!gd.isWindowTranslucencySupported( 3696 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT)) 3697 { 3698 throw new UnsupportedOperationException( 3699 "PERPIXEL_TRANSPARENT translucency is not supported."); 3700 } 3701 } 3702 this.shape = (shape == null) ? null : new Path2D.Float(shape); 3703 WindowPeer peer = (WindowPeer)getPeer(); 3704 if (peer != null) { 3705 peer.applyShape(shape == null ? null : Region.getInstance(shape, null)); 3706 } 3707 } 3708 } 3709 3710 /** 3711 * Gets the background color of this window. 3712 * <p> 3713 * Note that the alpha component of the returned color indicates whether 3714 * the window is in the non-opaque (per-pixel translucent) mode. 3715 * 3716 * @return this component's background color 3717 * 3718 * @see Window#setBackground(Color) 3719 * @see Window#isOpaque 3720 * @see GraphicsDevice.WindowTranslucency 3721 */ 3722 @Override 3723 public Color getBackground() { 3724 return super.getBackground(); 3725 } 3726 3727 /** 3728 * Sets the background color of this window. 3729 * <p> 3730 * If the windowing system supports the {@link 3731 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT} 3732 * tranclucency, the alpha component of the given background color 3733 * may effect the mode of operation for this window: it indicates whether 3734 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent 3735 * (alpha is less than {@code 1.0f}). If the given background color is 3736 * {@code null}, the window is considered completely opaque. 3737 * <p> 3738 * All the following conditions must be met to enable the per-pixel 3739 * transparency mode for this window: 3740 * <ul> 3741 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3742 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics 3743 * device where this window is located 3744 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3745 * and {@link Dialog#setUndecorated}) 3746 * <li>The window must not be in full-screen mode (see {@link 3747 * GraphicsDevice#setFullScreenWindow(Window)}) 3748 * </ul> 3749 * <p> 3750 * If the alpha component of the requested background color is less than 3751 * {@code 1.0f}, and any of the above conditions are not met, the background 3752 * color of this window will not change, the alpha component of the given 3753 * background color will not affect the mode of operation for this window, 3754 * and either the {@code UnsupportedOperationException} or {@code 3755 * IllegalComponentStateException} will be thrown. 3756 * <p> 3757 * When the window is per-pixel translucent, the drawing sub-system 3758 * respects the alpha value of each individual pixel. If a pixel gets 3759 * painted with the alpha color component equal to zero, it becomes 3760 * visually transparent. If the alpha of the pixel is equal to 1.0f, the 3761 * pixel is fully opaque. Interim values of the alpha color component make 3762 * the pixel semi-transparent. In this mode, the background of the window 3763 * gets painted with the alpha value of the given background color. If the 3764 * alpha value of the argument of this method is equal to {@code 0}, the 3765 * background is not painted at all. 3766 * <p> 3767 * The actual level of translucency of a given pixel also depends on window 3768 * opacity (see {@link #setOpacity(float)}), as well as the current shape of 3769 * this window (see {@link #setShape(Shape)}). 3770 * <p> 3771 * Note that painting a pixel with the alpha value of {@code 0} may or may 3772 * not disable the mouse event handling on this pixel. This is a 3773 * platform-dependent behavior. To make sure the mouse events do not get 3774 * dispatched to a particular pixel, the pixel must be excluded from the 3775 * shape of the window. 3776 * <p> 3777 * Enabling the per-pixel translucency mode may change the graphics 3778 * configuration of this window due to the native platform requirements. 3779 * 3780 * @param bgColor the color to become this window's background color. 3781 * 3782 * @throws IllegalComponentStateException if the alpha value of the given 3783 * background color is less than {@code 1.0f} and the window is decorated 3784 * @throws IllegalComponentStateException if the alpha value of the given 3785 * background color is less than {@code 1.0f} and the window is in 3786 * full-screen mode 3787 * @throws UnsupportedOperationException if the alpha value of the given 3788 * background color is less than {@code 1.0f} and {@link 3789 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3790 * PERPIXEL_TRANSLUCENT} translucency is not supported 3791 * 3792 * @see Window#getBackground 3793 * @see Window#isOpaque 3794 * @see Window#setOpacity(float) 3795 * @see Window#setShape(Shape) 3796 * @see Frame#isUndecorated 3797 * @see Dialog#isUndecorated 3798 * @see GraphicsDevice.WindowTranslucency 3799 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3800 * @see GraphicsConfiguration#isTranslucencyCapable() 3801 */ 3802 @Override 3803 public void setBackground(Color bgColor) { 3804 Color oldBg = getBackground(); 3805 super.setBackground(bgColor); 3806 if (oldBg != null && oldBg.equals(bgColor)) { 3807 return; 3808 } 3809 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255; 3810 int alpha = bgColor != null ? bgColor.getAlpha() : 255; 3811 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window 3812 GraphicsConfiguration gc = getGraphicsConfiguration(); 3813 GraphicsDevice gd = gc.getDevice(); 3814 if (gc.getDevice().getFullScreenWindow() == this) { 3815 throw new IllegalComponentStateException( 3816 "Making full-screen window non opaque is not supported."); 3817 } 3818 if (!gc.isTranslucencyCapable()) { 3819 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC(); 3820 if (capableGC == null) { 3821 throw new UnsupportedOperationException( 3822 "PERPIXEL_TRANSLUCENT translucency is not supported"); 3823 } 3824 setGraphicsConfiguration(capableGC); 3825 } 3826 setLayersOpaque(this, false); 3827 } else if ((oldAlpha < 255) && (alpha == 255)) { 3828 setLayersOpaque(this, true); 3829 } 3830 WindowPeer peer = (WindowPeer)getPeer(); 3831 if (peer != null) { 3832 peer.setOpaque(alpha == 255); 3833 } 3834 } 3835 3836 /** 3837 * Indicates if the window is currently opaque. 3838 * <p> 3839 * The method returns {@code false} if the background color of the window 3840 * is not {@code null} and the alpha component of the color is less than 3841 * {@code 1.0f}. The method returns {@code true} otherwise. 3842 * 3843 * @return {@code true} if the window is opaque, {@code false} otherwise 3844 * 3845 * @see Window#getBackground 3846 * @see Window#setBackground(Color) 3847 * @since 1.7 3848 */ 3849 @Override 3850 public boolean isOpaque() { 3851 Color bg = getBackground(); 3852 return bg != null ? bg.getAlpha() == 255 : true; 3853 } 3854 3855 private void updateWindow() { 3856 synchronized (getTreeLock()) { 3857 WindowPeer peer = (WindowPeer)getPeer(); 3858 if (peer != null) { 3859 peer.updateWindow(); 3860 } 3861 } 3862 } 3863 3864 /** 3865 * {@inheritDoc} 3866 * 3867 * @since 1.7 3868 */ 3869 @Override 3870 public void paint(Graphics g) { 3871 if (!isOpaque()) { 3872 Graphics gg = g.create(); 3873 try { 3874 if (gg instanceof Graphics2D) { 3875 gg.setColor(getBackground()); 3876 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC)); 3877 gg.fillRect(0, 0, getWidth(), getHeight()); 3878 } 3879 } finally { 3880 gg.dispose(); 3881 } 3882 } 3883 super.paint(g); 3884 } 3885 3886 private static void setLayersOpaque(Component component, boolean isOpaque) { 3887 // Shouldn't use instanceof to avoid loading Swing classes 3888 // if it's a pure AWT application. 3889 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) { 3890 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component; 3891 javax.swing.JRootPane root = rpc.getRootPane(); 3892 javax.swing.JLayeredPane lp = root.getLayeredPane(); 3893 Container c = root.getContentPane(); 3894 javax.swing.JComponent content = 3895 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null; 3896 lp.setOpaque(isOpaque); 3897 root.setOpaque(isOpaque); 3898 if (content != null) { 3899 content.setOpaque(isOpaque); 3900 3901 // Iterate down one level to see whether we have a JApplet 3902 // (which is also a RootPaneContainer) which requires processing 3903 int numChildren = content.getComponentCount(); 3904 if (numChildren > 0) { 3905 Component child = content.getComponent(0); 3906 // It's OK to use instanceof here because we've 3907 // already loaded the RootPaneContainer class by now 3908 if (child instanceof javax.swing.RootPaneContainer) { 3909 setLayersOpaque(child, isOpaque); 3910 } 3911 } 3912 } 3913 } 3914 } 3915 3916 3917 // ************************** MIXING CODE ******************************* 3918 3919 // A window has an owner, but it does NOT have a container 3920 @Override 3921 final Container getContainer() { 3922 return null; 3923 } 3924 3925 /** 3926 * Applies the shape to the component 3927 * @param shape Shape to be applied to the component 3928 */ 3929 @Override 3930 final void applyCompoundShape(Region shape) { 3931 // The shape calculated by mixing code is not intended to be applied 3932 // to windows or frames 3933 } 3934 3935 @Override 3936 final void applyCurrentShape() { 3937 // The shape calculated by mixing code is not intended to be applied 3938 // to windows or frames 3939 } 3940 3941 @Override 3942 final void mixOnReshaping() { 3943 // The shape calculated by mixing code is not intended to be applied 3944 // to windows or frames 3945 } 3946 3947 @Override 3948 final Point getLocationOnWindow() { 3949 return new Point(0, 0); 3950 } 3951 3952 // ****************** END OF MIXING CODE ******************************** 3953 3954 /** 3955 * Limit the given double value with the given range. 3956 */ 3957 private static double limit(double value, double min, double max) { 3958 value = Math.max(value, min); 3959 value = Math.min(value, max); 3960 return value; 3961 } 3962 3963 /** 3964 * Calculate the position of the security warning. 3965 * 3966 * This method gets the window location/size as reported by the native 3967 * system since the locally cached values may represent outdated data. 3968 * 3969 * The method is used from the native code, or via AWTAccessor. 3970 * 3971 * NOTE: this method is invoked on the toolkit thread, and therefore is not 3972 * supposed to become public/user-overridable. 3973 */ 3974 private Point2D calculateSecurityWarningPosition(double x, double y, 3975 double w, double h) 3976 { 3977 // The position according to the spec of SecurityWarning.setPosition() 3978 double wx = x + w * securityWarningAlignmentX + securityWarningPointX; 3979 double wy = y + h * securityWarningAlignmentY + securityWarningPointY; 3980 3981 // First, make sure the warning is not too far from the window bounds 3982 wx = Window.limit(wx, 3983 x - securityWarningWidth - 2, 3984 x + w + 2); 3985 wy = Window.limit(wy, 3986 y - securityWarningHeight - 2, 3987 y + h + 2); 3988 3989 // Now make sure the warning window is visible on the screen 3990 GraphicsConfiguration graphicsConfig = 3991 getGraphicsConfiguration_NoClientCode(); 3992 Rectangle screenBounds = graphicsConfig.getBounds(); 3993 Insets screenInsets = 3994 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig); 3995 3996 wx = Window.limit(wx, 3997 screenBounds.x + screenInsets.left, 3998 screenBounds.x + screenBounds.width - screenInsets.right 3999 - securityWarningWidth); 4000 wy = Window.limit(wy, 4001 screenBounds.y + screenInsets.top, 4002 screenBounds.y + screenBounds.height - screenInsets.bottom 4003 - securityWarningHeight); 4004 4005 return new Point2D.Double(wx, wy); 4006 } 4007 4008 static { 4009 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() { 4010 public float getOpacity(Window window) { 4011 return window.opacity; 4012 } 4013 public void setOpacity(Window window, float opacity) { 4014 window.setOpacity(opacity); 4015 } 4016 public Shape getShape(Window window) { 4017 return window.getShape(); 4018 } 4019 public void setShape(Window window, Shape shape) { 4020 window.setShape(shape); 4021 } 4022 public void setOpaque(Window window, boolean opaque) { 4023 Color bg = window.getBackground(); 4024 if (bg == null) { 4025 bg = new Color(0, 0, 0, 0); 4026 } 4027 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(), 4028 opaque ? 255 : 0)); 4029 } 4030 public void updateWindow(Window window) { 4031 window.updateWindow(); 4032 } 4033 4034 public Dimension getSecurityWarningSize(Window window) { 4035 return new Dimension(window.securityWarningWidth, 4036 window.securityWarningHeight); 4037 } 4038 4039 public void setSecurityWarningSize(Window window, int width, int height) 4040 { 4041 window.securityWarningWidth = width; 4042 window.securityWarningHeight = height; 4043 } 4044 4045 public void setSecurityWarningPosition(Window window, 4046 Point2D point, float alignmentX, float alignmentY) 4047 { 4048 window.securityWarningPointX = point.getX(); 4049 window.securityWarningPointY = point.getY(); 4050 window.securityWarningAlignmentX = alignmentX; 4051 window.securityWarningAlignmentY = alignmentY; 4052 4053 synchronized (window.getTreeLock()) { 4054 WindowPeer peer = (WindowPeer)window.getPeer(); 4055 if (peer != null) { 4056 peer.repositionSecurityWarning(); 4057 } 4058 } 4059 } 4060 4061 public Point2D calculateSecurityWarningPosition(Window window, 4062 double x, double y, double w, double h) 4063 { 4064 return window.calculateSecurityWarningPosition(x, y, w, h); 4065 } 4066 4067 public void setLWRequestStatus(Window changed, boolean status) { 4068 changed.syncLWRequests = status; 4069 } 4070 4071 public boolean isAutoRequestFocus(Window w) { 4072 return w.autoRequestFocus; 4073 } 4074 4075 public boolean isTrayIconWindow(Window w) { 4076 return w.isTrayIconWindow; 4077 } 4078 4079 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) { 4080 w.isTrayIconWindow = isTrayIconWindow; 4081 } 4082 }); // WindowAccessor 4083 } // static 4084 4085 // a window doesn't need to be updated in the Z-order. 4086 @Override 4087 void updateZOrder() {} 4088 4089 } // class Window 4090 4091 4092 /** 4093 * This class is no longer used, but is maintained for Serialization 4094 * backward-compatibility. 4095 */ 4096 class FocusManager implements java.io.Serializable { 4097 Container focusRoot; 4098 Component focusOwner; 4099 4100 /* 4101 * JDK 1.1 serialVersionUID 4102 */ 4103 static final long serialVersionUID = 2491878825643557906L; 4104 }