1 /*
2 * Copyright (c) 1995, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 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.AWTPermissions;
55 import sun.awt.AppContext;
56 import sun.awt.CausedFocusEvent;
57 import sun.awt.SunToolkit;
58 import sun.awt.util.IdentityArrayList;
59 import sun.java2d.Disposer;
60 import sun.java2d.pipe.Region;
61 import sun.security.action.GetPropertyAction;
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 * style="float:center; margin: 7px 10px;">
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 that denies
199 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
200 * This message can be displayed anywhere in the window.
201 *
202 * @serial
203 * @see #getWarningString
204 */
205 String warningString;
206
207 /**
208 * {@code icons} is the graphical way we can
209 * represent the frames and dialogs.
210 * {@code Window} can't display icon but it's
211 * being inherited by owned {@code Dialog}s.
212 *
213 * @serial
214 * @see #getIconImages
215 * @see #setIconImages
216 */
217 transient java.util.List<Image> icons;
218
219 /**
220 * Holds the reference to the component which last had focus in this window
221 * before it lost focus.
222 */
223 private transient Component temporaryLostComponent;
224
225 static boolean systemSyncLWRequests = false;
226 boolean syncLWRequests = false;
227 transient boolean beforeFirstShow = true;
228 private transient boolean disposing = false;
229 transient WindowDisposerRecord disposerRecord = null;
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, then it is invoked to check
421 * {@code AWTPermission("showWindowWithoutWarningBanner")}
422 * to determine whether or not the window must be displayed with
423 * a warning banner.
424 *
425 * @param gc the {@code GraphicsConfiguration} of the target screen
426 * device. If {@code gc} is {@code null}, the system default
427 * {@code GraphicsConfiguration} is assumed
428 * @exception IllegalArgumentException if {@code gc}
429 * is not from a screen device
430 * @exception HeadlessException when
431 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
432 *
433 * @see java.awt.GraphicsEnvironment#isHeadless
434 */
435 Window(GraphicsConfiguration gc) {
436 init(gc);
437 }
438
439 transient Object anchor = new Object();
440 static class WindowDisposerRecord implements sun.java2d.DisposerRecord {
441 WeakReference<Window> owner;
442 final WeakReference<Window> weakThis;
443 final WeakReference<AppContext> context;
444
445 WindowDisposerRecord(AppContext context, Window victim) {
446 weakThis = victim.weakThis;
447 this.context = new WeakReference<AppContext>(context);
448 }
449
450 public void updateOwner() {
451 Window victim = weakThis.get();
452 owner = (victim == null)
453 ? null
454 : new WeakReference<Window>(victim.getOwner());
455 }
456
457 public void dispose() {
458 if (owner != null) {
459 Window parent = owner.get();
460 if (parent != null) {
461 parent.removeOwnedWindow(weakThis);
462 }
463 }
464 AppContext ac = context.get();
465 if (null != ac) {
466 Window.removeFromWindowList(ac, weakThis);
467 }
468 }
469 }
470
471 private GraphicsConfiguration initGC(GraphicsConfiguration gc) {
472 GraphicsEnvironment.checkHeadless();
473
474 if (gc == null) {
475 gc = GraphicsEnvironment.getLocalGraphicsEnvironment().
476 getDefaultScreenDevice().getDefaultConfiguration();
477 }
478 setGraphicsConfiguration(gc);
479
480 return gc;
481 }
482
483 private void init(GraphicsConfiguration gc) {
484 GraphicsEnvironment.checkHeadless();
485
486 syncLWRequests = systemSyncLWRequests;
487
488 weakThis = new WeakReference<Window>(this);
489 addToWindowList();
490
491 setWarningString();
492 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
493 this.visible = false;
494
495 gc = initGC(gc);
496
497 if (gc.getDevice().getType() !=
498 GraphicsDevice.TYPE_RASTER_SCREEN) {
499 throw new IllegalArgumentException("not a screen device");
500 }
501 setLayout(new BorderLayout());
502
503 /* offset the initial location with the original of the screen */
504 /* and any insets */
505 Rectangle screenBounds = gc.getBounds();
506 Insets screenInsets = getToolkit().getScreenInsets(gc);
507 int x = getX() + screenBounds.x + screenInsets.left;
508 int y = getY() + screenBounds.y + screenInsets.top;
509 if (x != this.x || y != this.y) {
510 setLocation(x, y);
511 /* reset after setLocation */
512 setLocationByPlatform(locationByPlatformProp);
513 }
514
515 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
516 disposerRecord = new WindowDisposerRecord(appContext, this);
517 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
518
519 SunToolkit.checkAndSetPolicy(this);
520 }
521
522 /**
523 * Constructs a new, initially invisible window in the default size.
524 * <p>
525 * If there is a security manager set, it is invoked to check
526 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
527 * If that check fails with a {@code SecurityException} then a warning
528 * banner is created.
529 *
530 * @exception HeadlessException when
531 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
532 *
533 * @see java.awt.GraphicsEnvironment#isHeadless
534 */
535 Window() throws HeadlessException {
536 GraphicsEnvironment.checkHeadless();
537 init((GraphicsConfiguration)null);
538 }
539
540 /**
541 * Constructs a new, initially invisible window with the specified
542 * {@code Frame} as its owner. The window will not be focusable
543 * unless its owner is showing on the screen.
544 * <p>
545 * If there is a security manager set, it is invoked to check
546 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
547 * If that check fails with a {@code SecurityException} then a warning
548 * banner is created.
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 #isShowing
559 */
560 public Window(Frame owner) {
561 this(owner == null ? (GraphicsConfiguration)null :
562 owner.getGraphicsConfiguration());
563 ownedInit(owner);
564 }
565
566 /**
567 * Constructs a new, initially invisible window with the specified
568 * {@code Window} as its owner. This window will not be focusable
569 * unless its nearest owning {@code Frame} or {@code Dialog}
570 * is showing on the screen.
571 * <p>
572 * If there is a security manager set, it is invoked to check
573 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
574 * If that check fails with a {@code SecurityException} then a
575 * warning banner is created.
576 *
577 * @param owner the {@code Window} to act as owner or
578 * {@code null} if this window has no owner
579 * @exception IllegalArgumentException if the {@code owner}'s
580 * {@code GraphicsConfiguration} is not from a screen device
581 * @exception HeadlessException when
582 * {@code GraphicsEnvironment.isHeadless()} returns
583 * {@code true}
584 *
585 * @see java.awt.GraphicsEnvironment#isHeadless
586 * @see #isShowing
587 *
588 * @since 1.2
589 */
590 public Window(Window owner) {
591 this(owner == null ? (GraphicsConfiguration)null :
592 owner.getGraphicsConfiguration());
593 ownedInit(owner);
594 }
595
596 /**
597 * Constructs a new, initially invisible window with the specified owner
598 * {@code Window} and a {@code GraphicsConfiguration}
599 * of a screen device. The Window will not be focusable unless
600 * its nearest owning {@code Frame} or {@code Dialog}
601 * is showing on the screen.
602 * <p>
603 * If there is a security manager set, it is invoked to check
604 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that
605 * check fails with a {@code SecurityException} then a warning banner
606 * is created.
607 *
608 * @param owner the window to act as owner or {@code null}
609 * if this window has no owner
610 * @param gc the {@code GraphicsConfiguration} of the target
611 * screen device; if {@code gc} is {@code null},
612 * the system default {@code GraphicsConfiguration} is assumed
613 * @exception IllegalArgumentException if {@code gc}
614 * is not from a screen device
615 * @exception HeadlessException when
616 * {@code GraphicsEnvironment.isHeadless()} returns
617 * {@code true}
618 *
619 * @see java.awt.GraphicsEnvironment#isHeadless
620 * @see GraphicsConfiguration#getBounds
621 * @see #isShowing
622 * @since 1.3
623 */
624 public Window(Window owner, GraphicsConfiguration gc) {
625 this(gc);
626 ownedInit(owner);
627 }
628
629 private void ownedInit(Window owner) {
630 this.parent = owner;
631 if (owner != null) {
632 owner.addOwnedWindow(weakThis);
633 if (owner.isAlwaysOnTop()) {
634 try {
635 setAlwaysOnTop(true);
636 } catch (SecurityException ignore) {
637 }
638 }
639 }
640
641 // WindowDisposerRecord requires a proper value of parent field.
642 disposerRecord.updateOwner();
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 synchronized (getTreeLock()) {
1044 this.locationByPlatform = false;
1045 }
1046 for (int i = 0; i < ownedWindowList.size(); i++) {
1047 Window child = ownedWindowList.elementAt(i).get();
1048 if ((child != null) && child.showWithParent) {
1049 child.show();
1050 child.showWithParent = false;
1051 } // endif
1052 } // endfor
1053 if (!isModalBlocked()) {
1054 updateChildrenBlocking();
1055 } else {
1056 // fix for 6532736: after this window is shown, its blocker
1057 // should be raised to front
1058 modalBlocker.toFront_NoClientCode();
1059 }
1060 if (this instanceof Frame || this instanceof Dialog) {
1061 updateChildFocusableWindowState(this);
1062 }
1063 }
1064 isInShow = false;
1065
1066 // If first time shown, generate WindowOpened event
1067 if ((state & OPENED) == 0) {
1068 postWindowEvent(WindowEvent.WINDOW_OPENED);
1069 state |= OPENED;
1070 }
1071 }
1072
1073 static void updateChildFocusableWindowState(Window w) {
1074 if (w.getPeer() != null && w.isShowing()) {
1075 ((WindowPeer)w.getPeer()).updateFocusableWindowState();
1076 }
1077 for (int i = 0; i < w.ownedWindowList.size(); i++) {
1078 Window child = w.ownedWindowList.elementAt(i).get();
1079 if (child != null) {
1080 updateChildFocusableWindowState(child);
1081 }
1082 }
1083 }
1084
1085 synchronized void postWindowEvent(int id) {
1086 if (windowListener != null
1087 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0
1088 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) {
1089 WindowEvent e = new WindowEvent(this, id);
1090 Toolkit.getEventQueue().postEvent(e);
1091 }
1092 }
1093
1094 /**
1095 * Hide this Window, its subcomponents, and all of its owned children.
1096 * The Window and its subcomponents can be made visible again
1097 * with a call to {@code show}.
1098 * @see #show
1099 * @see #dispose
1100 * @deprecated As of JDK version 1.5, replaced by
1101 * {@link #setVisible(boolean)}.
1102 */
1103 @Deprecated
1104 public void hide() {
1105 synchronized(ownedWindowList) {
1106 for (int i = 0; i < ownedWindowList.size(); i++) {
1107 Window child = ownedWindowList.elementAt(i).get();
1108 if ((child != null) && child.visible) {
1109 child.hide();
1110 child.showWithParent = true;
1111 }
1112 }
1113 }
1114 if (isModalBlocked()) {
1115 modalBlocker.unblockWindow(this);
1116 }
1117 super.hide();
1118 synchronized (getTreeLock()) {
1119 this.locationByPlatform = false;
1120 }
1121 }
1122
1123 final void clearMostRecentFocusOwnerOnHide() {
1124 /* do nothing */
1125 }
1126
1127 /**
1128 * Releases all of the native screen resources used by this
1129 * {@code Window}, its subcomponents, and all of its owned
1130 * children. That is, the resources for these {@code Component}s
1131 * will be destroyed, any memory they consume will be returned to the
1132 * OS, and they will be marked as undisplayable.
1133 * <p>
1134 * The {@code Window} and its subcomponents can be made displayable
1135 * again by rebuilding the native resources with a subsequent call to
1136 * {@code pack} or {@code show}. The states of the recreated
1137 * {@code Window} and its subcomponents will be identical to the
1138 * states of these objects at the point where the {@code Window}
1139 * was disposed (not accounting for additional modifications between
1140 * those actions).
1141 * <p>
1142 * <b>Note</b>: When the last displayable window
1143 * within the Java virtual machine (VM) is disposed of, the VM may
1144 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown">
1145 * AWT Threading Issues</a> for more information.
1146 * @see Component#isDisplayable
1147 * @see #pack
1148 * @see #show
1149 */
1150 public void dispose() {
1151 doDispose();
1152 }
1153
1154 /*
1155 * Fix for 4872170.
1156 * If dispose() is called on parent then its children have to be disposed as well
1157 * as reported in javadoc. So we need to implement this functionality even if a
1158 * child overrides dispose() in a wrong way without calling super.dispose().
1159 */
1160 void disposeImpl() {
1161 dispose();
1162 if (getPeer() != null) {
1163 doDispose();
1164 }
1165 }
1166
1167 void doDispose() {
1168 class DisposeAction implements Runnable {
1169 public void run() {
1170 disposing = true;
1171 try {
1172 // Check if this window is the fullscreen window for the
1173 // device. Exit the fullscreen mode prior to disposing
1174 // of the window if that's the case.
1175 GraphicsDevice gd = getGraphicsConfiguration().getDevice();
1176 if (gd.getFullScreenWindow() == Window.this) {
1177 gd.setFullScreenWindow(null);
1178 }
1179
1180 Object[] ownedWindowArray;
1181 synchronized(ownedWindowList) {
1182 ownedWindowArray = new Object[ownedWindowList.size()];
1183 ownedWindowList.copyInto(ownedWindowArray);
1184 }
1185 for (int i = 0; i < ownedWindowArray.length; i++) {
1186 Window child = (Window) (((WeakReference)
1187 (ownedWindowArray[i])).get());
1188 if (child != null) {
1189 child.disposeImpl();
1190 }
1191 }
1192 hide();
1193 beforeFirstShow = true;
1194 removeNotify();
1195 synchronized (inputContextLock) {
1196 if (inputContext != null) {
1197 inputContext.dispose();
1198 inputContext = null;
1199 }
1200 }
1201 clearCurrentFocusCycleRootOnHide();
1202 } finally {
1203 disposing = false;
1204 }
1205 }
1206 }
1207 boolean fireWindowClosedEvent = isDisplayable();
1208 DisposeAction action = new DisposeAction();
1209 if (EventQueue.isDispatchThread()) {
1210 action.run();
1211 }
1212 else {
1213 try {
1214 EventQueue.invokeAndWait(this, action);
1215 }
1216 catch (InterruptedException e) {
1217 System.err.println("Disposal was interrupted:");
1218 e.printStackTrace();
1219 }
1220 catch (InvocationTargetException e) {
1221 System.err.println("Exception during disposal:");
1222 e.printStackTrace();
1223 }
1224 }
1225 // Execute outside the Runnable because postWindowEvent is
1226 // synchronized on (this). We don't need to synchronize the call
1227 // on the EventQueue anyways.
1228 if (fireWindowClosedEvent) {
1229 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1230 }
1231 }
1232
1233 /*
1234 * Should only be called while holding the tree lock.
1235 * It's overridden here because parent == owner in Window,
1236 * and we shouldn't adjust counter on owner
1237 */
1238 void adjustListeningChildrenOnParent(long mask, int num) {
1239 }
1240
1241 // Should only be called while holding tree lock
1242 void adjustDecendantsOnParent(int num) {
1243 // do nothing since parent == owner and we shouldn't
1244 // ajust counter on owner
1245 }
1246
1247 /**
1248 * If this Window is visible, brings this Window to the front and may make
1249 * it the focused Window.
1250 * <p>
1251 * Places this Window at the top of the stacking order and shows it in
1252 * front of any other Windows in this VM. No action will take place if this
1253 * Window is not visible. Some platforms do not allow Windows which own
1254 * other Windows to appear on top of those owned Windows. Some platforms
1255 * may not permit this VM to place its Windows above windows of native
1256 * applications, or Windows of other VMs. This permission may depend on
1257 * whether a Window in this VM is already focused. Every attempt will be
1258 * made to move this Window as high as possible in the stacking order;
1259 * however, developers should not assume that this method will move this
1260 * Window above all other windows in every situation.
1261 * <p>
1262 * Developers must never assume that this Window is the focused or active
1263 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1264 * event. On platforms where the top-most window is the focused window, this
1265 * method will <b>probably</b> focus this Window (if it is not already focused)
1266 * under the following conditions:
1267 * <ul>
1268 * <li> The window meets the requirements outlined in the
1269 * {@link #isFocusableWindow} method.
1270 * <li> The window's property {@code autoRequestFocus} is of the
1271 * {@code true} value.
1272 * <li> Native windowing system allows the window to get focused.
1273 * </ul>
1274 * On platforms where the stacking order does not typically affect the focused
1275 * window, this method will <b>probably</b> leave the focused and active
1276 * Windows unchanged.
1277 * <p>
1278 * If this method causes this Window to be focused, and this Window is a
1279 * Frame or a Dialog, it will also become activated. If this Window is
1280 * focused, but it is not a Frame or a Dialog, then the first Frame or
1281 * Dialog that is an owner of this Window will be activated.
1282 * <p>
1283 * If this window is blocked by modal dialog, then the blocking dialog
1284 * is brought to the front and remains above the blocked window.
1285 *
1286 * @see #toBack
1287 * @see #setAutoRequestFocus
1288 * @see #isFocusableWindow
1289 */
1290 public void toFront() {
1291 toFront_NoClientCode();
1292 }
1293
1294 // This functionality is implemented in a final package-private method
1295 // to insure that it cannot be overridden by client subclasses.
1296 final void toFront_NoClientCode() {
1297 if (visible) {
1298 WindowPeer peer = (WindowPeer)this.peer;
1299 if (peer != null) {
1300 peer.toFront();
1301 }
1302 if (isModalBlocked()) {
1303 modalBlocker.toFront_NoClientCode();
1304 }
1305 }
1306 }
1307
1308 /**
1309 * If this Window is visible, sends this Window to the back and may cause
1310 * it to lose focus or activation if it is the focused or active Window.
1311 * <p>
1312 * Places this Window at the bottom of the stacking order and shows it
1313 * behind any other Windows in this VM. No action will take place is this
1314 * Window is not visible. Some platforms do not allow Windows which are
1315 * owned by other Windows to appear below their owners. Every attempt will
1316 * be made to move this Window as low as possible in the stacking order;
1317 * however, developers should not assume that this method will move this
1318 * Window below all other windows in every situation.
1319 * <p>
1320 * Because of variations in native windowing systems, no guarantees about
1321 * changes to the focused and active Windows can be made. Developers must
1322 * never assume that this Window is no longer the focused or active Window
1323 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1324 * event. On platforms where the top-most window is the focused window,
1325 * this method will <b>probably</b> cause this Window to lose focus. In
1326 * that case, the next highest, focusable Window in this VM will receive
1327 * focus. On platforms where the stacking order does not typically affect
1328 * the focused window, this method will <b>probably</b> leave the focused
1329 * and active Windows unchanged.
1330 *
1331 * @see #toFront
1332 */
1333 public void toBack() {
1334 toBack_NoClientCode();
1335 }
1336
1337 // This functionality is implemented in a final package-private method
1338 // to insure that it cannot be overridden by client subclasses.
1339 final void toBack_NoClientCode() {
1340 if(isAlwaysOnTop()) {
1341 try {
1342 setAlwaysOnTop(false);
1343 }catch(SecurityException e) {
1344 }
1345 }
1346 if (visible) {
1347 WindowPeer peer = (WindowPeer)this.peer;
1348 if (peer != null) {
1349 peer.toBack();
1350 }
1351 }
1352 }
1353
1354 /**
1355 * Returns the toolkit of this frame.
1356 * @return the toolkit of this window.
1357 * @see Toolkit
1358 * @see Toolkit#getDefaultToolkit
1359 * @see Component#getToolkit
1360 */
1361 public Toolkit getToolkit() {
1362 return Toolkit.getDefaultToolkit();
1363 }
1364
1365 /**
1366 * Gets the warning string that is displayed with this window.
1367 * If this window is insecure, the warning string is displayed
1368 * somewhere in the visible area of the window. A window is
1369 * insecure if there is a security manager and the security
1370 * manager denies
1371 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
1372 * <p>
1373 * If the window is secure, then {@code getWarningString}
1374 * returns {@code null}. If the window is insecure, this
1375 * method checks for the system property
1376 * {@code awt.appletWarning}
1377 * and returns the string value of that property.
1378 * @return the warning string for this window.
1379 */
1380 public final String getWarningString() {
1381 return warningString;
1382 }
1383
1384 private void setWarningString() {
1385 warningString = null;
1386 SecurityManager sm = System.getSecurityManager();
1387 if (sm != null) {
1388 try {
1389 sm.checkPermission(AWTPermissions.TOPLEVEL_WINDOW_PERMISSION);
1390 } catch (SecurityException se) {
1391 // make sure the privileged action is only
1392 // for getting the property! We don't want the
1393 // above checkPermission call to always succeed!
1394 warningString = AccessController.doPrivileged(
1395 new GetPropertyAction("awt.appletWarning",
1396 "Java Applet Window"));
1397 }
1398 }
1399 }
1400
1401 /**
1402 * Gets the {@code Locale} object that is associated
1403 * with this window, if the locale has been set.
1404 * If no locale has been set, then the default locale
1405 * is returned.
1406 * @return the locale that is set for this window.
1407 * @see java.util.Locale
1408 * @since JDK1.1
1409 */
1410 public Locale getLocale() {
1411 if (this.locale == null) {
1412 return Locale.getDefault();
1413 }
1414 return this.locale;
1415 }
1416
1417 /**
1418 * Gets the input context for this window. A window always has an input context,
1419 * which is shared by subcomponents unless they create and set their own.
1420 * @see Component#getInputContext
1421 * @since 1.2
1422 */
1423 public InputContext getInputContext() {
1424 synchronized (inputContextLock) {
1425 if (inputContext == null) {
1426 inputContext = InputContext.getInstance();
1427 }
1428 }
1429 return inputContext;
1430 }
1431
1432 /**
1433 * Set the cursor image to a specified cursor.
1434 * <p>
1435 * The method may have no visual effect if the Java platform
1436 * implementation and/or the native system do not support
1437 * changing the mouse cursor shape.
1438 * @param cursor One of the constants defined
1439 * by the {@code Cursor} class. If this parameter is null
1440 * then the cursor for this window will be set to the type
1441 * Cursor.DEFAULT_CURSOR.
1442 * @see Component#getCursor
1443 * @see Cursor
1444 * @since JDK1.1
1445 */
1446 public void setCursor(Cursor cursor) {
1447 if (cursor == null) {
1448 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1449 }
1450 super.setCursor(cursor);
1451 }
1452
1453 /**
1454 * Returns the owner of this window.
1455 *
1456 * @return the owner of this window
1457 * @since 1.2
1458 */
1459 public Window getOwner() {
1460 return getOwner_NoClientCode();
1461 }
1462 final Window getOwner_NoClientCode() {
1463 return (Window)parent;
1464 }
1465
1466 /**
1467 * Return an array containing all the windows this
1468 * window currently owns.
1469 *
1470 * @return the array of all the owned windows
1471 * @since 1.2
1472 */
1473 public Window[] getOwnedWindows() {
1474 return getOwnedWindows_NoClientCode();
1475 }
1476 final Window[] getOwnedWindows_NoClientCode() {
1477 Window realCopy[];
1478
1479 synchronized(ownedWindowList) {
1480 // Recall that ownedWindowList is actually a Vector of
1481 // WeakReferences and calling get() on one of these references
1482 // may return null. Make two arrays-- one the size of the
1483 // Vector (fullCopy with size fullSize), and one the size of
1484 // all non-null get()s (realCopy with size realSize).
1485 int fullSize = ownedWindowList.size();
1486 int realSize = 0;
1487 Window fullCopy[] = new Window[fullSize];
1488
1489 for (int i = 0; i < fullSize; i++) {
1490 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1491
1492 if (fullCopy[realSize] != null) {
1493 realSize++;
1494 }
1495 }
1496
1497 if (fullSize != realSize) {
1498 realCopy = Arrays.copyOf(fullCopy, realSize);
1499 } else {
1500 realCopy = fullCopy;
1501 }
1502 }
1503
1504 return realCopy;
1505 }
1506
1507 boolean isModalBlocked() {
1508 return modalBlocker != null;
1509 }
1510
1511 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1512 this.modalBlocker = blocked ? blocker : null;
1513 if (peerCall) {
1514 WindowPeer peer = (WindowPeer)this.peer;
1515 if (peer != null) {
1516 peer.setModalBlocked(blocker, blocked);
1517 }
1518 }
1519 }
1520
1521 Dialog getModalBlocker() {
1522 return modalBlocker;
1523 }
1524
1525 /*
1526 * Returns a list of all displayable Windows, i. e. all the
1527 * Windows which peer is not null.
1528 *
1529 * @see #addNotify
1530 * @see #removeNotify
1531 */
1532 static IdentityArrayList<Window> getAllWindows() {
1533 synchronized (allWindows) {
1534 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1535 v.addAll(allWindows);
1536 return v;
1537 }
1538 }
1539
1540 static IdentityArrayList<Window> getAllUnblockedWindows() {
1541 synchronized (allWindows) {
1542 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1543 for (int i = 0; i < allWindows.size(); i++) {
1544 Window w = allWindows.get(i);
1545 if (!w.isModalBlocked()) {
1546 unblocked.add(w);
1547 }
1548 }
1549 return unblocked;
1550 }
1551 }
1552
1553 private static Window[] getWindows(AppContext appContext) {
1554 synchronized (Window.class) {
1555 Window realCopy[];
1556 @SuppressWarnings("unchecked")
1557 Vector<WeakReference<Window>> windowList =
1558 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1559 if (windowList != null) {
1560 int fullSize = windowList.size();
1561 int realSize = 0;
1562 Window fullCopy[] = new Window[fullSize];
1563 for (int i = 0; i < fullSize; i++) {
1564 Window w = windowList.get(i).get();
1565 if (w != null) {
1566 fullCopy[realSize++] = w;
1567 }
1568 }
1569 if (fullSize != realSize) {
1570 realCopy = Arrays.copyOf(fullCopy, realSize);
1571 } else {
1572 realCopy = fullCopy;
1573 }
1574 } else {
1575 realCopy = new Window[0];
1576 }
1577 return realCopy;
1578 }
1579 }
1580
1581 /**
1582 * Returns an array of all {@code Window}s, both owned and ownerless,
1583 * created by this application.
1584 * If called from an applet, the array includes only the {@code Window}s
1585 * accessible by that applet.
1586 * <p>
1587 * <b>Warning:</b> this method may return system created windows, such
1588 * as a print dialog. Applications should not assume the existence of
1589 * these dialogs, nor should an application assume anything about these
1590 * dialogs such as component positions, {@code LayoutManager}s
1591 * or serialization.
1592 *
1593 * @return the array of all the {@code Window}s created by the application
1594 * @see Frame#getFrames
1595 * @see Window#getOwnerlessWindows
1596 *
1597 * @since 1.6
1598 */
1599 public static Window[] getWindows() {
1600 return getWindows(AppContext.getAppContext());
1601 }
1602
1603 /**
1604 * Returns an array of all {@code Window}s created by this application
1605 * that have no owner. They include {@code Frame}s and ownerless
1606 * {@code Dialog}s and {@code Window}s.
1607 * If called from an applet, the array includes only the {@code Window}s
1608 * accessible by that applet.
1609 * <p>
1610 * <b>Warning:</b> this method may return system created windows, such
1611 * as a print dialog. Applications should not assume the existence of
1612 * these dialogs, nor should an application assume anything about these
1613 * dialogs such as component positions, {@code LayoutManager}s
1614 * or serialization.
1615 *
1616 * @return the array of all the ownerless {@code Window}s
1617 * created by this application
1618 * @see Frame#getFrames
1619 * @see Window#getWindows()
1620 *
1621 * @since 1.6
1622 */
1623 public static Window[] getOwnerlessWindows() {
1624 Window[] allWindows = Window.getWindows();
1625
1626 int ownerlessCount = 0;
1627 for (Window w : allWindows) {
1628 if (w.getOwner() == null) {
1629 ownerlessCount++;
1630 }
1631 }
1632
1633 Window[] ownerless = new Window[ownerlessCount];
1634 int c = 0;
1635 for (Window w : allWindows) {
1636 if (w.getOwner() == null) {
1637 ownerless[c++] = w;
1638 }
1639 }
1640
1641 return ownerless;
1642 }
1643
1644 Window getDocumentRoot() {
1645 synchronized (getTreeLock()) {
1646 Window w = this;
1647 while (w.getOwner() != null) {
1648 w = w.getOwner();
1649 }
1650 return w;
1651 }
1652 }
1653
1654 /**
1655 * Specifies the modal exclusion type for this window. If a window is modal
1656 * excluded, it is not blocked by some modal dialogs. See {@link
1657 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1658 * possible modal exclusion types.
1659 * <p>
1660 * If the given type is not supported, {@code NO_EXCLUDE} is used.
1661 * <p>
1662 * Note: changing the modal exclusion type for a visible window may have no
1663 * effect until it is hidden and then shown again.
1664 *
1665 * @param exclusionType the modal exclusion type for this window; a {@code null}
1666 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1667 * NO_EXCLUDE}
1668 * @throws SecurityException if the calling thread does not have permission
1669 * to set the modal exclusion property to the window with the given
1670 * {@code exclusionType}
1671 * @see java.awt.Dialog.ModalExclusionType
1672 * @see java.awt.Window#getModalExclusionType
1673 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1674 *
1675 * @since 1.6
1676 */
1677 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1678 if (exclusionType == null) {
1679 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1680 }
1681 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1682 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1683 }
1684 if (modalExclusionType == exclusionType) {
1685 return;
1686 }
1687 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1688 SecurityManager sm = System.getSecurityManager();
1689 if (sm != null) {
1690 sm.checkPermission(AWTPermissions.TOOLKIT_MODALITY_PERMISSION);
1691 }
1692 }
1693 modalExclusionType = exclusionType;
1694
1695 // if we want on-fly changes, we need to uncomment the lines below
1696 // and override the method in Dialog to use modalShow() instead
1697 // of updateChildrenBlocking()
1698 /*
1699 if (isModalBlocked()) {
1700 modalBlocker.unblockWindow(this);
1701 }
1702 Dialog.checkShouldBeBlocked(this);
1703 updateChildrenBlocking();
1704 */
1705 }
1706
1707 /**
1708 * Returns the modal exclusion type of this window.
1709 *
1710 * @return the modal exclusion type of this window
1711 *
1712 * @see java.awt.Dialog.ModalExclusionType
1713 * @see java.awt.Window#setModalExclusionType
1714 *
1715 * @since 1.6
1716 */
1717 public Dialog.ModalExclusionType getModalExclusionType() {
1718 return modalExclusionType;
1719 }
1720
1721 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1722 if ((modalExclusionType != null) &&
1723 modalExclusionType.compareTo(exclusionType) >= 0)
1724 {
1725 return true;
1726 }
1727 Window owner = getOwner_NoClientCode();
1728 return (owner != null) && owner.isModalExcluded(exclusionType);
1729 }
1730
1731 void updateChildrenBlocking() {
1732 Vector<Window> childHierarchy = new Vector<Window>();
1733 Window[] ownedWindows = getOwnedWindows();
1734 for (int i = 0; i < ownedWindows.length; i++) {
1735 childHierarchy.add(ownedWindows[i]);
1736 }
1737 int k = 0;
1738 while (k < childHierarchy.size()) {
1739 Window w = childHierarchy.get(k);
1740 if (w.isVisible()) {
1741 if (w.isModalBlocked()) {
1742 Dialog blocker = w.getModalBlocker();
1743 blocker.unblockWindow(w);
1744 }
1745 Dialog.checkShouldBeBlocked(w);
1746 Window[] wOwned = w.getOwnedWindows();
1747 for (int j = 0; j < wOwned.length; j++) {
1748 childHierarchy.add(wOwned[j]);
1749 }
1750 }
1751 k++;
1752 }
1753 }
1754
1755 /**
1756 * Adds the specified window listener to receive window events from
1757 * this window.
1758 * If l is null, no exception is thrown and no action is performed.
1759 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1760 * >AWT Threading Issues</a> for details on AWT's threading model.
1761 *
1762 * @param l the window listener
1763 * @see #removeWindowListener
1764 * @see #getWindowListeners
1765 */
1766 public synchronized void addWindowListener(WindowListener l) {
1767 if (l == null) {
1768 return;
1769 }
1770 newEventsOnly = true;
1771 windowListener = AWTEventMulticaster.add(windowListener, l);
1772 }
1773
1774 /**
1775 * Adds the specified window state listener to receive window
1776 * events from this window. If {@code l} is {@code null},
1777 * no exception is thrown and no action is performed.
1778 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1779 * >AWT Threading Issues</a> for details on AWT's threading model.
1780 *
1781 * @param l the window state listener
1782 * @see #removeWindowStateListener
1783 * @see #getWindowStateListeners
1784 * @since 1.4
1785 */
1786 public synchronized void addWindowStateListener(WindowStateListener l) {
1787 if (l == null) {
1788 return;
1789 }
1790 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1791 newEventsOnly = true;
1792 }
1793
1794 /**
1795 * Adds the specified window focus listener to receive window events
1796 * from this window.
1797 * If l is null, no exception is thrown and no action is performed.
1798 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1799 * >AWT Threading Issues</a> for details on AWT's threading model.
1800 *
1801 * @param l the window focus listener
1802 * @see #removeWindowFocusListener
1803 * @see #getWindowFocusListeners
1804 * @since 1.4
1805 */
1806 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1807 if (l == null) {
1808 return;
1809 }
1810 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1811 newEventsOnly = true;
1812 }
1813
1814 /**
1815 * Removes the specified window listener so that it no longer
1816 * receives window events from this window.
1817 * If l is null, no exception is thrown and no action is performed.
1818 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1819 * >AWT Threading Issues</a> for details on AWT's threading model.
1820 *
1821 * @param l the window listener
1822 * @see #addWindowListener
1823 * @see #getWindowListeners
1824 */
1825 public synchronized void removeWindowListener(WindowListener l) {
1826 if (l == null) {
1827 return;
1828 }
1829 windowListener = AWTEventMulticaster.remove(windowListener, l);
1830 }
1831
1832 /**
1833 * Removes the specified window state listener so that it no
1834 * longer receives window events from this window. If
1835 * {@code l} is {@code null}, no exception is thrown and
1836 * no action is performed.
1837 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1838 * >AWT Threading Issues</a> for details on AWT's threading model.
1839 *
1840 * @param l the window state listener
1841 * @see #addWindowStateListener
1842 * @see #getWindowStateListeners
1843 * @since 1.4
1844 */
1845 public synchronized void removeWindowStateListener(WindowStateListener l) {
1846 if (l == null) {
1847 return;
1848 }
1849 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1850 }
1851
1852 /**
1853 * Removes the specified window focus listener so that it no longer
1854 * receives window events from this window.
1855 * If l is null, no exception is thrown and no action is performed.
1856 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1857 * >AWT Threading Issues</a> for details on AWT's threading model.
1858 *
1859 * @param l the window focus listener
1860 * @see #addWindowFocusListener
1861 * @see #getWindowFocusListeners
1862 * @since 1.4
1863 */
1864 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1865 if (l == null) {
1866 return;
1867 }
1868 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1869 }
1870
1871 /**
1872 * Returns an array of all the window listeners
1873 * registered on this window.
1874 *
1875 * @return all of this window's {@code WindowListener}s
1876 * or an empty array if no window
1877 * listeners are currently registered
1878 *
1879 * @see #addWindowListener
1880 * @see #removeWindowListener
1881 * @since 1.4
1882 */
1883 public synchronized WindowListener[] getWindowListeners() {
1884 return getListeners(WindowListener.class);
1885 }
1886
1887 /**
1888 * Returns an array of all the window focus listeners
1889 * registered on this window.
1890 *
1891 * @return all of this window's {@code WindowFocusListener}s
1892 * or an empty array if no window focus
1893 * listeners are currently registered
1894 *
1895 * @see #addWindowFocusListener
1896 * @see #removeWindowFocusListener
1897 * @since 1.4
1898 */
1899 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1900 return getListeners(WindowFocusListener.class);
1901 }
1902
1903 /**
1904 * Returns an array of all the window state listeners
1905 * registered on this window.
1906 *
1907 * @return all of this window's {@code WindowStateListener}s
1908 * or an empty array if no window state
1909 * listeners are currently registered
1910 *
1911 * @see #addWindowStateListener
1912 * @see #removeWindowStateListener
1913 * @since 1.4
1914 */
1915 public synchronized WindowStateListener[] getWindowStateListeners() {
1916 return getListeners(WindowStateListener.class);
1917 }
1918
1919
1920 /**
1921 * Returns an array of all the objects currently registered
1922 * as <code><em>Foo</em>Listener</code>s
1923 * upon this {@code Window}.
1924 * <code><em>Foo</em>Listener</code>s are registered using the
1925 * <code>add<em>Foo</em>Listener</code> method.
1926 *
1927 * <p>
1928 *
1929 * You can specify the {@code listenerType} argument
1930 * with a class literal, such as
1931 * <code><em>Foo</em>Listener.class</code>.
1932 * For example, you can query a
1933 * {@code Window} {@code w}
1934 * for its window listeners with the following code:
1935 *
1936 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1937 *
1938 * If no such listeners exist, this method returns an empty array.
1939 *
1940 * @param listenerType the type of listeners requested; this parameter
1941 * should specify an interface that descends from
1942 * {@code java.util.EventListener}
1943 * @return an array of all objects registered as
1944 * <code><em>Foo</em>Listener</code>s on this window,
1945 * or an empty array if no such
1946 * listeners have been added
1947 * @exception ClassCastException if {@code listenerType}
1948 * doesn't specify a class or interface that implements
1949 * {@code java.util.EventListener}
1950 * @exception NullPointerException if {@code listenerType} is {@code null}
1951 *
1952 * @see #getWindowListeners
1953 * @since 1.3
1954 */
1955 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1956 EventListener l = null;
1957 if (listenerType == WindowFocusListener.class) {
1958 l = windowFocusListener;
1959 } else if (listenerType == WindowStateListener.class) {
1960 l = windowStateListener;
1961 } else if (listenerType == WindowListener.class) {
1962 l = windowListener;
1963 } else {
1964 return super.getListeners(listenerType);
1965 }
1966 return AWTEventMulticaster.getListeners(l, listenerType);
1967 }
1968
1969 // REMIND: remove when filtering is handled at lower level
1970 boolean eventEnabled(AWTEvent e) {
1971 switch(e.id) {
1972 case WindowEvent.WINDOW_OPENED:
1973 case WindowEvent.WINDOW_CLOSING:
1974 case WindowEvent.WINDOW_CLOSED:
1975 case WindowEvent.WINDOW_ICONIFIED:
1976 case WindowEvent.WINDOW_DEICONIFIED:
1977 case WindowEvent.WINDOW_ACTIVATED:
1978 case WindowEvent.WINDOW_DEACTIVATED:
1979 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1980 windowListener != null) {
1981 return true;
1982 }
1983 return false;
1984 case WindowEvent.WINDOW_GAINED_FOCUS:
1985 case WindowEvent.WINDOW_LOST_FOCUS:
1986 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
1987 windowFocusListener != null) {
1988 return true;
1989 }
1990 return false;
1991 case WindowEvent.WINDOW_STATE_CHANGED:
1992 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
1993 windowStateListener != null) {
1994 return true;
1995 }
1996 return false;
1997 default:
1998 break;
1999 }
2000 return super.eventEnabled(e);
2001 }
2002
2003 /**
2004 * Processes events on this window. If the event is an
2005 * {@code WindowEvent}, it invokes the
2006 * {@code processWindowEvent} method, else it invokes its
2007 * superclass's {@code processEvent}.
2008 * <p>Note that if the event parameter is {@code null}
2009 * the behavior is unspecified and may result in an
2010 * exception.
2011 *
2012 * @param e the event
2013 */
2014 protected void processEvent(AWTEvent e) {
2015 if (e instanceof WindowEvent) {
2016 switch (e.getID()) {
2017 case WindowEvent.WINDOW_OPENED:
2018 case WindowEvent.WINDOW_CLOSING:
2019 case WindowEvent.WINDOW_CLOSED:
2020 case WindowEvent.WINDOW_ICONIFIED:
2021 case WindowEvent.WINDOW_DEICONIFIED:
2022 case WindowEvent.WINDOW_ACTIVATED:
2023 case WindowEvent.WINDOW_DEACTIVATED:
2024 processWindowEvent((WindowEvent)e);
2025 break;
2026 case WindowEvent.WINDOW_GAINED_FOCUS:
2027 case WindowEvent.WINDOW_LOST_FOCUS:
2028 processWindowFocusEvent((WindowEvent)e);
2029 break;
2030 case WindowEvent.WINDOW_STATE_CHANGED:
2031 processWindowStateEvent((WindowEvent)e);
2032 break;
2033 }
2034 return;
2035 }
2036 super.processEvent(e);
2037 }
2038
2039 /**
2040 * Processes window events occurring on this window by
2041 * dispatching them to any registered WindowListener objects.
2042 * NOTE: This method will not be called unless window events
2043 * are enabled for this component; this happens when one of the
2044 * following occurs:
2045 * <ul>
2046 * <li>A WindowListener object is registered via
2047 * {@code addWindowListener}
2048 * <li>Window events are enabled via {@code enableEvents}
2049 * </ul>
2050 * <p>Note that if the event parameter is {@code null}
2051 * the behavior is unspecified and may result in an
2052 * exception.
2053 *
2054 * @param e the window event
2055 * @see Component#enableEvents
2056 */
2057 protected void processWindowEvent(WindowEvent e) {
2058 WindowListener listener = windowListener;
2059 if (listener != null) {
2060 switch(e.getID()) {
2061 case WindowEvent.WINDOW_OPENED:
2062 listener.windowOpened(e);
2063 break;
2064 case WindowEvent.WINDOW_CLOSING:
2065 listener.windowClosing(e);
2066 break;
2067 case WindowEvent.WINDOW_CLOSED:
2068 listener.windowClosed(e);
2069 break;
2070 case WindowEvent.WINDOW_ICONIFIED:
2071 listener.windowIconified(e);
2072 break;
2073 case WindowEvent.WINDOW_DEICONIFIED:
2074 listener.windowDeiconified(e);
2075 break;
2076 case WindowEvent.WINDOW_ACTIVATED:
2077 listener.windowActivated(e);
2078 break;
2079 case WindowEvent.WINDOW_DEACTIVATED:
2080 listener.windowDeactivated(e);
2081 break;
2082 default:
2083 break;
2084 }
2085 }
2086 }
2087
2088 /**
2089 * Processes window focus event occurring on this window by
2090 * dispatching them to any registered WindowFocusListener objects.
2091 * NOTE: this method will not be called unless window focus events
2092 * are enabled for this window. This happens when one of the
2093 * following occurs:
2094 * <ul>
2095 * <li>a WindowFocusListener is registered via
2096 * {@code addWindowFocusListener}
2097 * <li>Window focus events are enabled via {@code enableEvents}
2098 * </ul>
2099 * <p>Note that if the event parameter is {@code null}
2100 * the behavior is unspecified and may result in an
2101 * exception.
2102 *
2103 * @param e the window focus event
2104 * @see Component#enableEvents
2105 * @since 1.4
2106 */
2107 protected void processWindowFocusEvent(WindowEvent e) {
2108 WindowFocusListener listener = windowFocusListener;
2109 if (listener != null) {
2110 switch (e.getID()) {
2111 case WindowEvent.WINDOW_GAINED_FOCUS:
2112 listener.windowGainedFocus(e);
2113 break;
2114 case WindowEvent.WINDOW_LOST_FOCUS:
2115 listener.windowLostFocus(e);
2116 break;
2117 default:
2118 break;
2119 }
2120 }
2121 }
2122
2123 /**
2124 * Processes window state event occurring on this window by
2125 * dispatching them to any registered {@code WindowStateListener}
2126 * objects.
2127 * NOTE: this method will not be called unless window state events
2128 * are enabled for this window. This happens when one of the
2129 * following occurs:
2130 * <ul>
2131 * <li>a {@code WindowStateListener} is registered via
2132 * {@code addWindowStateListener}
2133 * <li>window state events are enabled via {@code enableEvents}
2134 * </ul>
2135 * <p>Note that if the event parameter is {@code null}
2136 * the behavior is unspecified and may result in an
2137 * exception.
2138 *
2139 * @param e the window state event
2140 * @see java.awt.Component#enableEvents
2141 * @since 1.4
2142 */
2143 protected void processWindowStateEvent(WindowEvent e) {
2144 WindowStateListener listener = windowStateListener;
2145 if (listener != null) {
2146 switch (e.getID()) {
2147 case WindowEvent.WINDOW_STATE_CHANGED:
2148 listener.windowStateChanged(e);
2149 break;
2150 default:
2151 break;
2152 }
2153 }
2154 }
2155
2156 /**
2157 * Implements a debugging hook -- checks to see if
2158 * the user has typed <i>control-shift-F1</i>. If so,
2159 * the list of child windows is dumped to {@code System.out}.
2160 * @param e the keyboard event
2161 */
2162 void preProcessKeyEvent(KeyEvent e) {
2163 // Dump the list of child windows to System.out.
2164 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2165 e.isControlDown() && e.isShiftDown() &&
2166 e.getID() == KeyEvent.KEY_PRESSED) {
2167 list(System.out, 0);
2168 }
2169 }
2170
2171 void postProcessKeyEvent(KeyEvent e) {
2172 // Do nothing
2173 }
2174
2175
2176 /**
2177 * Sets whether this window should always be above other windows. If
2178 * there are multiple always-on-top windows, their relative order is
2179 * unspecified and platform dependent.
2180 * <p>
2181 * If some other window is already always-on-top then the
2182 * relative order between these windows is unspecified (depends on
2183 * platform). No window can be brought to be over the always-on-top
2184 * window except maybe another always-on-top window.
2185 * <p>
2186 * All windows owned by an always-on-top window inherit this state and
2187 * automatically become always-on-top. If a window ceases to be
2188 * always-on-top, the windows that it owns will no longer be
2189 * always-on-top. When an always-on-top window is sent {@link #toBack
2190 * toBack}, its always-on-top state is set to {@code false}.
2191 *
2192 * <p> When this method is called on a window with a value of
2193 * {@code true}, and the window is visible and the platform
2194 * supports always-on-top for this window, the window is immediately
2195 * brought forward, "sticking" it in the top-most position. If the
2196 * window isn`t currently visible, this method sets the always-on-top
2197 * state to {@code true} but does not bring the window forward.
2198 * When the window is later shown, it will be always-on-top.
2199 *
2200 * <p> When this method is called on a window with a value of
2201 * {@code false} the always-on-top state is set to normal. It may also
2202 * cause an unspecified, platform-dependent change in the z-order of
2203 * top-level windows, but other always-on-top windows will remain in
2204 * top-most position. Calling this method with a value of {@code false}
2205 * on a window that has a normal state has no effect.
2206 *
2207 * <p><b>Note</b>: some platforms might not support always-on-top
2208 * windows. To detect if always-on-top windows are supported by the
2209 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2210 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2211 * isn't supported for this window or this window's toolkit does not
2212 * support always-on-top windows, calling this method has no effect.
2213 * <p>
2214 * If a SecurityManager is installed, the calling thread must be
2215 * granted the AWTPermission "setWindowAlwaysOnTop" in
2216 * order to set the value of this property. If this
2217 * permission is not granted, this method will throw a
2218 * SecurityException, and the current value of the property will
2219 * be left unchanged.
2220 *
2221 * @param alwaysOnTop true if the window should always be above other
2222 * windows
2223 * @throws SecurityException if the calling thread does not have
2224 * permission to set the value of always-on-top property
2225 *
2226 * @see #isAlwaysOnTop
2227 * @see #toFront
2228 * @see #toBack
2229 * @see AWTPermission
2230 * @see #isAlwaysOnTopSupported
2231 * @see #getToolkit
2232 * @see Toolkit#isAlwaysOnTopSupported
2233 * @since 1.5
2234 */
2235 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2236 SecurityManager security = System.getSecurityManager();
2237 if (security != null) {
2238 security.checkPermission(AWTPermissions.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2239 }
2240
2241 boolean oldAlwaysOnTop;
2242 synchronized(this) {
2243 oldAlwaysOnTop = this.alwaysOnTop;
2244 this.alwaysOnTop = alwaysOnTop;
2245 }
2246 if (oldAlwaysOnTop != alwaysOnTop ) {
2247 if (isAlwaysOnTopSupported()) {
2248 WindowPeer peer = (WindowPeer)this.peer;
2249 synchronized(getTreeLock()) {
2250 if (peer != null) {
2251 peer.updateAlwaysOnTopState();
2252 }
2253 }
2254 }
2255 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2256 }
2257 for (WeakReference<Window> ref : ownedWindowList) {
2258 Window window = ref.get();
2259 if (window != null) {
2260 try {
2261 window.setAlwaysOnTop(alwaysOnTop);
2262 } catch (SecurityException ignore) {
2263 }
2264 }
2265 }
2266 }
2267
2268 /**
2269 * Returns whether the always-on-top mode is supported for this
2270 * window. Some platforms may not support always-on-top windows, some
2271 * may support only some kinds of top-level windows; for example,
2272 * a platform may not support always-on-top modal dialogs.
2273 *
2274 * @return {@code true}, if the always-on-top mode is supported for
2275 * this window and this window's toolkit supports always-on-top windows,
2276 * {@code false} otherwise
2277 *
2278 * @see #setAlwaysOnTop(boolean)
2279 * @see #getToolkit
2280 * @see Toolkit#isAlwaysOnTopSupported
2281 * @since 1.6
2282 */
2283 public boolean isAlwaysOnTopSupported() {
2284 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2285 }
2286
2287
2288 /**
2289 * Returns whether this window is an always-on-top window.
2290 * @return {@code true}, if the window is in always-on-top state,
2291 * {@code false} otherwise
2292 * @see #setAlwaysOnTop
2293 * @since 1.5
2294 */
2295 public final boolean isAlwaysOnTop() {
2296 return alwaysOnTop;
2297 }
2298
2299
2300 /**
2301 * Returns the child Component of this Window that has focus if this Window
2302 * is focused; returns null otherwise.
2303 *
2304 * @return the child Component with focus, or null if this Window is not
2305 * focused
2306 * @see #getMostRecentFocusOwner
2307 * @see #isFocused
2308 */
2309 public Component getFocusOwner() {
2310 return (isFocused())
2311 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2312 getFocusOwner()
2313 : null;
2314 }
2315
2316 /**
2317 * Returns the child Component of this Window that will receive the focus
2318 * when this Window is focused. If this Window is currently focused, this
2319 * method returns the same Component as {@code getFocusOwner()}. If
2320 * this Window is not focused, then the child Component that most recently
2321 * requested focus will be returned. If no child Component has ever
2322 * requested focus, and this is a focusable Window, then this Window's
2323 * initial focusable Component is returned. If no child Component has ever
2324 * requested focus, and this is a non-focusable Window, null is returned.
2325 *
2326 * @return the child Component that will receive focus when this Window is
2327 * focused
2328 * @see #getFocusOwner
2329 * @see #isFocused
2330 * @see #isFocusableWindow
2331 * @since 1.4
2332 */
2333 public Component getMostRecentFocusOwner() {
2334 if (isFocused()) {
2335 return getFocusOwner();
2336 } else {
2337 Component mostRecent =
2338 KeyboardFocusManager.getMostRecentFocusOwner(this);
2339 if (mostRecent != null) {
2340 return mostRecent;
2341 } else {
2342 return (isFocusableWindow())
2343 ? getFocusTraversalPolicy().getInitialComponent(this)
2344 : null;
2345 }
2346 }
2347 }
2348
2349 /**
2350 * Returns whether this Window is active. Only a Frame or a Dialog may be
2351 * active. The native windowing system may denote the active Window or its
2352 * children with special decorations, such as a highlighted title bar. The
2353 * active Window is always either the focused Window, or the first Frame or
2354 * Dialog that is an owner of the focused Window.
2355 *
2356 * @return whether this is the active Window.
2357 * @see #isFocused
2358 * @since 1.4
2359 */
2360 public boolean isActive() {
2361 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2362 getActiveWindow() == this);
2363 }
2364
2365 /**
2366 * Returns whether this Window is focused. If there exists a focus owner,
2367 * the focused Window is the Window that is, or contains, that focus owner.
2368 * If there is no focus owner, then no Window is focused.
2369 * <p>
2370 * If the focused Window is a Frame or a Dialog it is also the active
2371 * Window. Otherwise, the active Window is the first Frame or Dialog that
2372 * is an owner of the focused Window.
2373 *
2374 * @return whether this is the focused Window.
2375 * @see #isActive
2376 * @since 1.4
2377 */
2378 public boolean isFocused() {
2379 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2380 getGlobalFocusedWindow() == this);
2381 }
2382
2383 /**
2384 * Gets a focus traversal key for this Window. (See {@code
2385 * setFocusTraversalKeys} for a full description of each key.)
2386 * <p>
2387 * If the traversal key has not been explicitly set for this Window,
2388 * then this Window's parent's traversal key is returned. If the
2389 * traversal key has not been explicitly set for any of this Window's
2390 * ancestors, then the current KeyboardFocusManager's default traversal key
2391 * is returned.
2392 *
2393 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2394 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2395 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2396 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2397 * @return the AWTKeyStroke for the specified key
2398 * @see Container#setFocusTraversalKeys
2399 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2400 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2401 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2402 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2403 * @throws IllegalArgumentException if id is not one of
2404 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2405 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2406 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2407 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2408 * @since 1.4
2409 */
2410 @SuppressWarnings("unchecked")
2411 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2412 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2413 throw new IllegalArgumentException("invalid focus traversal key identifier");
2414 }
2415
2416 // Okay to return Set directly because it is an unmodifiable view
2417 @SuppressWarnings("rawtypes")
2418 Set keystrokes = (focusTraversalKeys != null)
2419 ? focusTraversalKeys[id]
2420 : null;
2421
2422 if (keystrokes != null) {
2423 return keystrokes;
2424 } else {
2425 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2426 getDefaultFocusTraversalKeys(id);
2427 }
2428 }
2429
2430 /**
2431 * Does nothing because Windows must always be roots of a focus traversal
2432 * cycle. The passed-in value is ignored.
2433 *
2434 * @param focusCycleRoot this value is ignored
2435 * @see #isFocusCycleRoot
2436 * @see Container#setFocusTraversalPolicy
2437 * @see Container#getFocusTraversalPolicy
2438 * @since 1.4
2439 */
2440 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2441 }
2442
2443 /**
2444 * Always returns {@code true} because all Windows must be roots of a
2445 * focus traversal cycle.
2446 *
2447 * @return {@code true}
2448 * @see #setFocusCycleRoot
2449 * @see Container#setFocusTraversalPolicy
2450 * @see Container#getFocusTraversalPolicy
2451 * @since 1.4
2452 */
2453 public final boolean isFocusCycleRoot() {
2454 return true;
2455 }
2456
2457 /**
2458 * Always returns {@code null} because Windows have no ancestors; they
2459 * represent the top of the Component hierarchy.
2460 *
2461 * @return {@code null}
2462 * @see Container#isFocusCycleRoot()
2463 * @since 1.4
2464 */
2465 public final Container getFocusCycleRootAncestor() {
2466 return null;
2467 }
2468
2469 /**
2470 * Returns whether this Window can become the focused Window, that is,
2471 * whether this Window or any of its subcomponents can become the focus
2472 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2473 * must be set to {@code true}. For a Window which is not a Frame or
2474 * Dialog to be focusable, its focusable Window state must be set to
2475 * {@code true}, its nearest owning Frame or Dialog must be
2476 * showing on the screen, and it must contain at least one Component in
2477 * its focus traversal cycle. If any of these conditions is not met, then
2478 * neither this Window nor any of its subcomponents can become the focus
2479 * owner.
2480 *
2481 * @return {@code true} if this Window can be the focused Window;
2482 * {@code false} otherwise
2483 * @see #getFocusableWindowState
2484 * @see #setFocusableWindowState
2485 * @see #isShowing
2486 * @see Component#isFocusable
2487 * @since 1.4
2488 */
2489 public final boolean isFocusableWindow() {
2490 // If a Window/Frame/Dialog was made non-focusable, then it is always
2491 // non-focusable.
2492 if (!getFocusableWindowState()) {
2493 return false;
2494 }
2495
2496 // All other tests apply only to Windows.
2497 if (this instanceof Frame || this instanceof Dialog) {
2498 return true;
2499 }
2500
2501 // A Window must have at least one Component in its root focus
2502 // traversal cycle to be focusable.
2503 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2504 return false;
2505 }
2506
2507 // A Window's nearest owning Frame or Dialog must be showing on the
2508 // screen.
2509 for (Window owner = getOwner(); owner != null;
2510 owner = owner.getOwner())
2511 {
2512 if (owner instanceof Frame || owner instanceof Dialog) {
2513 return owner.isShowing();
2514 }
2515 }
2516
2517 return false;
2518 }
2519
2520 /**
2521 * Returns whether this Window can become the focused Window if it meets
2522 * the other requirements outlined in {@code isFocusableWindow}. If
2523 * this method returns {@code false}, then
2524 * {@code isFocusableWindow} will return {@code false} as well.
2525 * If this method returns {@code true}, then
2526 * {@code isFocusableWindow} may return {@code true} or
2527 * {@code false} depending upon the other requirements which must be
2528 * met in order for a Window to be focusable.
2529 * <p>
2530 * By default, all Windows have a focusable Window state of
2531 * {@code true}.
2532 *
2533 * @return whether this Window can be the focused Window
2534 * @see #isFocusableWindow
2535 * @see #setFocusableWindowState
2536 * @see #isShowing
2537 * @see Component#setFocusable
2538 * @since 1.4
2539 */
2540 public boolean getFocusableWindowState() {
2541 return focusableWindowState;
2542 }
2543
2544 /**
2545 * Sets whether this Window can become the focused Window if it meets
2546 * the other requirements outlined in {@code isFocusableWindow}. If
2547 * this Window's focusable Window state is set to {@code false}, then
2548 * {@code isFocusableWindow} will return {@code false}. If this
2549 * Window's focusable Window state is set to {@code true}, then
2550 * {@code isFocusableWindow} may return {@code true} or
2551 * {@code false} depending upon the other requirements which must be
2552 * met in order for a Window to be focusable.
2553 * <p>
2554 * Setting a Window's focusability state to {@code false} is the
2555 * standard mechanism for an application to identify to the AWT a Window
2556 * which will be used as a floating palette or toolbar, and thus should be
2557 * a non-focusable Window.
2558 *
2559 * Setting the focusability state on a visible {@code Window}
2560 * can have a delayed effect on some platforms — the actual
2561 * change may happen only when the {@code Window} becomes
2562 * hidden and then visible again. To ensure consistent behavior
2563 * across platforms, set the {@code Window}'s focusable state
2564 * when the {@code Window} is invisible and then show it.
2565 *
2566 * @param focusableWindowState whether this Window can be the focused
2567 * Window
2568 * @see #isFocusableWindow
2569 * @see #getFocusableWindowState
2570 * @see #isShowing
2571 * @see Component#setFocusable
2572 * @since 1.4
2573 */
2574 public void setFocusableWindowState(boolean focusableWindowState) {
2575 boolean oldFocusableWindowState;
2576 synchronized (this) {
2577 oldFocusableWindowState = this.focusableWindowState;
2578 this.focusableWindowState = focusableWindowState;
2579 }
2580 WindowPeer peer = (WindowPeer)this.peer;
2581 if (peer != null) {
2582 peer.updateFocusableWindowState();
2583 }
2584 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2585 focusableWindowState);
2586 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2587 for (Window owner = getOwner();
2588 owner != null;
2589 owner = owner.getOwner())
2590 {
2591 Component toFocus =
2592 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2593 if (toFocus != null && toFocus.requestFocus(false, CausedFocusEvent.Cause.ACTIVATION)) {
2594 return;
2595 }
2596 }
2597 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2598 clearGlobalFocusOwnerPriv();
2599 }
2600 }
2601
2602 /**
2603 * Sets whether this window should receive focus on
2604 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2605 * or being moved to the front (with a call to {@link #toFront}).
2606 * <p>
2607 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2608 * (e.g. when showing an owner of the window makes the window to be shown).
2609 * {@link #toFront} may also be called indirectly (e.g. when
2610 * {@link #setVisible setVisible(true)} is called on already visible window).
2611 * In all such cases this property takes effect as well.
2612 * <p>
2613 * The value of the property is not inherited by owned windows.
2614 *
2615 * @param autoRequestFocus whether this window should be focused on
2616 * subsequently being shown or being moved to the front
2617 * @see #isAutoRequestFocus
2618 * @see #isFocusableWindow
2619 * @see #setVisible
2620 * @see #toFront
2621 * @since 1.7
2622 */
2623 public void setAutoRequestFocus(boolean autoRequestFocus) {
2624 this.autoRequestFocus = autoRequestFocus;
2625 }
2626
2627 /**
2628 * Returns whether this window should receive focus on subsequently being shown
2629 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2630 * (with a call to {@link #toFront}).
2631 * <p>
2632 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2633 *
2634 * @return {@code autoRequestFocus} value
2635 * @see #setAutoRequestFocus
2636 * @since 1.7
2637 */
2638 public boolean isAutoRequestFocus() {
2639 return autoRequestFocus;
2640 }
2641
2642 /**
2643 * Adds a PropertyChangeListener to the listener list. The listener is
2644 * registered for all bound properties of this class, including the
2645 * following:
2646 * <ul>
2647 * <li>this Window's font ("font")</li>
2648 * <li>this Window's background color ("background")</li>
2649 * <li>this Window's foreground color ("foreground")</li>
2650 * <li>this Window's focusability ("focusable")</li>
2651 * <li>this Window's focus traversal keys enabled state
2652 * ("focusTraversalKeysEnabled")</li>
2653 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2654 * ("forwardFocusTraversalKeys")</li>
2655 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2656 * ("backwardFocusTraversalKeys")</li>
2657 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2658 * ("upCycleFocusTraversalKeys")</li>
2659 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2660 * ("downCycleFocusTraversalKeys")</li>
2661 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2662 * </li>
2663 * <li>this Window's focusable Window state ("focusableWindowState")
2664 * </li>
2665 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2666 * </ul>
2667 * Note that if this Window is inheriting a bound property, then no
2668 * event will be fired in response to a change in the inherited property.
2669 * <p>
2670 * If listener is null, no exception is thrown and no action is performed.
2671 *
2672 * @param listener the PropertyChangeListener to be added
2673 *
2674 * @see Component#removePropertyChangeListener
2675 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2676 */
2677 public void addPropertyChangeListener(PropertyChangeListener listener) {
2678 super.addPropertyChangeListener(listener);
2679 }
2680
2681 /**
2682 * Adds a PropertyChangeListener to the listener list for a specific
2683 * property. The specified property may be user-defined, or one of the
2684 * following:
2685 * <ul>
2686 * <li>this Window's font ("font")</li>
2687 * <li>this Window's background color ("background")</li>
2688 * <li>this Window's foreground color ("foreground")</li>
2689 * <li>this Window's focusability ("focusable")</li>
2690 * <li>this Window's focus traversal keys enabled state
2691 * ("focusTraversalKeysEnabled")</li>
2692 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2693 * ("forwardFocusTraversalKeys")</li>
2694 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2695 * ("backwardFocusTraversalKeys")</li>
2696 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2697 * ("upCycleFocusTraversalKeys")</li>
2698 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2699 * ("downCycleFocusTraversalKeys")</li>
2700 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2701 * </li>
2702 * <li>this Window's focusable Window state ("focusableWindowState")
2703 * </li>
2704 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2705 * </ul>
2706 * Note that if this Window is inheriting a bound property, then no
2707 * event will be fired in response to a change in the inherited property.
2708 * <p>
2709 * If listener is null, no exception is thrown and no action is performed.
2710 *
2711 * @param propertyName one of the property names listed above
2712 * @param listener the PropertyChangeListener to be added
2713 *
2714 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2715 * @see Component#removePropertyChangeListener
2716 */
2717 public void addPropertyChangeListener(String propertyName,
2718 PropertyChangeListener listener) {
2719 super.addPropertyChangeListener(propertyName, listener);
2720 }
2721
2722 /**
2723 * Indicates if this container is a validate root.
2724 * <p>
2725 * {@code Window} objects are the validate roots, and, therefore, they
2726 * override this method to return {@code true}.
2727 *
2728 * @return {@code true}
2729 * @since 1.7
2730 * @see java.awt.Container#isValidateRoot
2731 */
2732 @Override
2733 public boolean isValidateRoot() {
2734 return true;
2735 }
2736
2737 /**
2738 * Dispatches an event to this window or one of its sub components.
2739 * @param e the event
2740 */
2741 void dispatchEventImpl(AWTEvent e) {
2742 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2743 invalidate();
2744 validate();
2745 }
2746 super.dispatchEventImpl(e);
2747 }
2748
2749 /**
2750 * @deprecated As of JDK version 1.1
2751 * replaced by {@code dispatchEvent(AWTEvent)}.
2752 */
2753 @Deprecated
2754 public boolean postEvent(Event e) {
2755 if (handleEvent(e)) {
2756 e.consume();
2757 return true;
2758 }
2759 return false;
2760 }
2761
2762 /**
2763 * Checks if this Window is showing on screen.
2764 * @see Component#setVisible
2765 */
2766 public boolean isShowing() {
2767 return visible;
2768 }
2769
2770 boolean isDisposing() {
2771 return disposing;
2772 }
2773
2774 /**
2775 * @deprecated As of J2SE 1.4, replaced by
2776 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2777 */
2778 @Deprecated
2779 public void applyResourceBundle(ResourceBundle rb) {
2780 applyComponentOrientation(ComponentOrientation.getOrientation(rb));
2781 }
2782
2783 /**
2784 * @deprecated As of J2SE 1.4, replaced by
2785 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2786 */
2787 @Deprecated
2788 public void applyResourceBundle(String rbName) {
2789 applyResourceBundle(ResourceBundle.getBundle(rbName));
2790 }
2791
2792 /*
2793 * Support for tracking all windows owned by this window
2794 */
2795 void addOwnedWindow(WeakReference<Window> weakWindow) {
2796 if (weakWindow != null) {
2797 synchronized(ownedWindowList) {
2798 // this if statement should really be an assert, but we don't
2799 // have asserts...
2800 if (!ownedWindowList.contains(weakWindow)) {
2801 ownedWindowList.addElement(weakWindow);
2802 }
2803 }
2804 }
2805 }
2806
2807 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2808 if (weakWindow != null) {
2809 // synchronized block not required since removeElement is
2810 // already synchronized
2811 ownedWindowList.removeElement(weakWindow);
2812 }
2813 }
2814
2815 void connectOwnedWindow(Window child) {
2816 child.parent = this;
2817 addOwnedWindow(child.weakThis);
2818 child.disposerRecord.updateOwner();
2819 }
2820
2821 private void addToWindowList() {
2822 synchronized (Window.class) {
2823 @SuppressWarnings("unchecked")
2824 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2825 if (windowList == null) {
2826 windowList = new Vector<WeakReference<Window>>();
2827 appContext.put(Window.class, windowList);
2828 }
2829 windowList.add(weakThis);
2830 }
2831 }
2832
2833 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2834 synchronized (Window.class) {
2835 @SuppressWarnings("unchecked")
2836 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2837 if (windowList != null) {
2838 windowList.remove(weakThis);
2839 }
2840 }
2841 }
2842
2843 private void removeFromWindowList() {
2844 removeFromWindowList(appContext, weakThis);
2845 }
2846
2847 /**
2848 * Window type.
2849 *
2850 * Synchronization: ObjectLock
2851 */
2852 private Type type = Type.NORMAL;
2853
2854 /**
2855 * Sets the type of the window.
2856 *
2857 * This method can only be called while the window is not displayable.
2858 *
2859 * @param type the window type
2860 * @throws IllegalComponentStateException if the window
2861 * is displayable.
2862 * @throws IllegalArgumentException if the type is {@code null}
2863 * @see Component#isDisplayable
2864 * @see #getType
2865 * @since 1.7
2866 */
2867 public void setType(Type type) {
2868 if (type == null) {
2869 throw new IllegalArgumentException("type should not be null.");
2870 }
2871 synchronized (getTreeLock()) {
2872 if (isDisplayable()) {
2873 throw new IllegalComponentStateException(
2874 "The window is displayable.");
2875 }
2876 synchronized (getObjectLock()) {
2877 this.type = type;
2878 }
2879 }
2880 }
2881
2882 /**
2883 * Returns the type of the window.
2884 *
2885 * @return the type of the window
2886 * @see #setType
2887 * @since 1.7
2888 */
2889 public Type getType() {
2890 synchronized (getObjectLock()) {
2891 return type;
2892 }
2893 }
2894
2895 /**
2896 * The window serialized data version.
2897 *
2898 * @serial
2899 */
2900 private int windowSerializedDataVersion = 2;
2901
2902 /**
2903 * Writes default serializable fields to stream. Writes
2904 * a list of serializable {@code WindowListener}s and
2905 * {@code WindowFocusListener}s as optional data.
2906 * Writes a list of child windows as optional data.
2907 * Writes a list of icon images as optional data
2908 *
2909 * @param s the {@code ObjectOutputStream} to write
2910 * @serialData {@code null} terminated sequence of
2911 * 0 or more pairs; the pair consists of a {@code String}
2912 * and {@code Object}; the {@code String}
2913 * indicates the type of object and is one of the following:
2914 * {@code windowListenerK} indicating a
2915 * {@code WindowListener} object;
2916 * {@code windowFocusWindowK} indicating a
2917 * {@code WindowFocusListener} object;
2918 * {@code ownedWindowK} indicating a child
2919 * {@code Window} object
2920 *
2921 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2922 * @see Component#windowListenerK
2923 * @see Component#windowFocusListenerK
2924 * @see Component#ownedWindowK
2925 * @see #readObject(ObjectInputStream)
2926 */
2927 private void writeObject(ObjectOutputStream s) throws IOException {
2928 synchronized (this) {
2929 // Update old focusMgr fields so that our object stream can be read
2930 // by previous releases
2931 focusMgr = new FocusManager();
2932 focusMgr.focusRoot = this;
2933 focusMgr.focusOwner = getMostRecentFocusOwner();
2934
2935 s.defaultWriteObject();
2936
2937 // Clear fields so that we don't keep extra references around
2938 focusMgr = null;
2939
2940 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2941 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2942 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2943 }
2944
2945 s.writeObject(null);
2946
2947 synchronized (ownedWindowList) {
2948 for (int i = 0; i < ownedWindowList.size(); i++) {
2949 Window child = ownedWindowList.elementAt(i).get();
2950 if (child != null) {
2951 s.writeObject(ownedWindowK);
2952 s.writeObject(child);
2953 }
2954 }
2955 }
2956 s.writeObject(null);
2957
2958 //write icon array
2959 if (icons != null) {
2960 for (Image i : icons) {
2961 if (i instanceof Serializable) {
2962 s.writeObject(i);
2963 }
2964 }
2965 }
2966 s.writeObject(null);
2967 }
2968
2969 //
2970 // Part of deserialization procedure to be called before
2971 // user's code.
2972 //
2973 private void initDeserializedWindow() {
2974 setWarningString();
2975 inputContextLock = new Object();
2976
2977 // Deserialized Windows are not yet visible.
2978 visible = false;
2979
2980 weakThis = new WeakReference<>(this);
2981
2982 anchor = new Object();
2983 disposerRecord = new WindowDisposerRecord(appContext, this);
2984 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
2985
2986 addToWindowList();
2987 initGC(null);
2988 ownedWindowList = new Vector<>();
2989 }
2990
2991 private void deserializeResources(ObjectInputStream s)
2992 throws ClassNotFoundException, IOException, HeadlessException {
2993
2994 if (windowSerializedDataVersion < 2) {
2995 // Translate old-style focus tracking to new model. For 1.4 and
2996 // later releases, we'll rely on the Window's initial focusable
2997 // Component.
2998 if (focusMgr != null) {
2999 if (focusMgr.focusOwner != null) {
3000 KeyboardFocusManager.
3001 setMostRecentFocusOwner(this, focusMgr.focusOwner);
3002 }
3003 }
3004
3005 // This field is non-transient and relies on default serialization.
3006 // However, the default value is insufficient, so we need to set
3007 // it explicitly for object data streams prior to 1.4.
3008 focusableWindowState = true;
3009
3010
3011 }
3012
3013 Object keyOrNull;
3014 while(null != (keyOrNull = s.readObject())) {
3015 String key = ((String)keyOrNull).intern();
3016
3017 if (windowListenerK == key) {
3018 addWindowListener((WindowListener)(s.readObject()));
3019 } else if (windowFocusListenerK == key) {
3020 addWindowFocusListener((WindowFocusListener)(s.readObject()));
3021 } else if (windowStateListenerK == key) {
3022 addWindowStateListener((WindowStateListener)(s.readObject()));
3023 } else // skip value for unrecognized key
3024 s.readObject();
3025 }
3026
3027 try {
3028 while (null != (keyOrNull = s.readObject())) {
3029 String key = ((String)keyOrNull).intern();
3030
3031 if (ownedWindowK == key)
3032 connectOwnedWindow((Window) s.readObject());
3033
3034 else // skip value for unrecognized key
3035 s.readObject();
3036 }
3037
3038 //read icons
3039 Object obj = s.readObject(); //Throws OptionalDataException
3040 //for pre1.6 objects.
3041 icons = new ArrayList<Image>(); //Frame.readObject() assumes
3042 //pre1.6 version if icons is null.
3043 while (obj != null) {
3044 if (obj instanceof Image) {
3045 icons.add((Image)obj);
3046 }
3047 obj = s.readObject();
3048 }
3049 }
3050 catch (OptionalDataException e) {
3051 // 1.1 serialized form
3052 // ownedWindowList will be updated by Frame.readObject
3053 }
3054
3055 }
3056
3057 /**
3058 * Reads the {@code ObjectInputStream} and an optional
3059 * list of listeners to receive various events fired by
3060 * the component; also reads a list of
3061 * (possibly {@code null}) child windows.
3062 * Unrecognized keys or values will be ignored.
3063 *
3064 * @param s the {@code ObjectInputStream} to read
3065 * @exception HeadlessException if
3066 * {@code GraphicsEnvironment.isHeadless} returns
3067 * {@code true}
3068 * @see java.awt.GraphicsEnvironment#isHeadless
3069 * @see #writeObject
3070 */
3071 private void readObject(ObjectInputStream s)
3072 throws ClassNotFoundException, IOException, HeadlessException
3073 {
3074 GraphicsEnvironment.checkHeadless();
3075 initDeserializedWindow();
3076 ObjectInputStream.GetField f = s.readFields();
3077
3078 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3079 state = f.get("state", 0);
3080 focusableWindowState = f.get("focusableWindowState", true);
3081 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3082 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3083 // Note: 1.4 (or later) doesn't use focusMgr
3084 focusMgr = (FocusManager)f.get("focusMgr", null);
3085 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3086 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3087 setModalExclusionType(et); // since 6.0
3088 boolean aot = f.get("alwaysOnTop", false);
3089 if(aot) {
3090 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3091 }
3092 shape = (Shape)f.get("shape", null);
3093 opacity = (Float)f.get("opacity", 1.0f);
3094
3095 this.securityWarningWidth = 0;
3096 this.securityWarningHeight = 0;
3097 this.securityWarningPointX = 2.0;
3098 this.securityWarningPointY = 0.0;
3099 this.securityWarningAlignmentX = RIGHT_ALIGNMENT;
3100 this.securityWarningAlignmentY = TOP_ALIGNMENT;
3101
3102 deserializeResources(s);
3103 }
3104
3105 /*
3106 * --- Accessibility Support ---
3107 *
3108 */
3109
3110 /**
3111 * Gets the AccessibleContext associated with this Window.
3112 * For windows, the AccessibleContext takes the form of an
3113 * AccessibleAWTWindow.
3114 * A new AccessibleAWTWindow instance is created if necessary.
3115 *
3116 * @return an AccessibleAWTWindow that serves as the
3117 * AccessibleContext of this Window
3118 * @since 1.3
3119 */
3120 public AccessibleContext getAccessibleContext() {
3121 if (accessibleContext == null) {
3122 accessibleContext = new AccessibleAWTWindow();
3123 }
3124 return accessibleContext;
3125 }
3126
3127 /**
3128 * This class implements accessibility support for the
3129 * {@code Window} class. It provides an implementation of the
3130 * Java Accessibility API appropriate to window user-interface elements.
3131 * @since 1.3
3132 */
3133 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3134 {
3135 /*
3136 * JDK 1.3 serialVersionUID
3137 */
3138 private static final long serialVersionUID = 4215068635060671780L;
3139
3140 /**
3141 * Get the role of this object.
3142 *
3143 * @return an instance of AccessibleRole describing the role of the
3144 * object
3145 * @see javax.accessibility.AccessibleRole
3146 */
3147 public AccessibleRole getAccessibleRole() {
3148 return AccessibleRole.WINDOW;
3149 }
3150
3151 /**
3152 * Get the state of this object.
3153 *
3154 * @return an instance of AccessibleStateSet containing the current
3155 * state set of the object
3156 * @see javax.accessibility.AccessibleState
3157 */
3158 public AccessibleStateSet getAccessibleStateSet() {
3159 AccessibleStateSet states = super.getAccessibleStateSet();
3160 if (getFocusOwner() != null) {
3161 states.add(AccessibleState.ACTIVE);
3162 }
3163 return states;
3164 }
3165
3166 } // inner class AccessibleAWTWindow
3167
3168 @Override
3169 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3170 if (gc == null) {
3171 gc = GraphicsEnvironment.
3172 getLocalGraphicsEnvironment().
3173 getDefaultScreenDevice().
3174 getDefaultConfiguration();
3175 }
3176 synchronized (getTreeLock()) {
3177 super.setGraphicsConfiguration(gc);
3178 if (log.isLoggable(PlatformLogger.Level.FINER)) {
3179 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3180 }
3181 }
3182 }
3183
3184 /**
3185 * Sets the location of the window relative to the specified
3186 * component according to the following scenarios.
3187 * <p>
3188 * The target screen mentioned below is a screen to which
3189 * the window should be placed after the setLocationRelativeTo
3190 * method is called.
3191 * <ul>
3192 * <li>If the component is {@code null}, or the {@code
3193 * GraphicsConfiguration} associated with this component is
3194 * {@code null}, the window is placed in the center of the
3195 * screen. The center point can be obtained with the {@link
3196 * GraphicsEnvironment#getCenterPoint
3197 * GraphicsEnvironment.getCenterPoint} method.
3198 * <li>If the component is not {@code null}, but it is not
3199 * currently showing, the window is placed in the center of
3200 * the target screen defined by the {@code
3201 * GraphicsConfiguration} associated with this component.
3202 * <li>If the component is not {@code null} and is shown on
3203 * the screen, then the window is located in such a way that
3204 * the center of the window coincides with the center of the
3205 * component.
3206 * </ul>
3207 * <p>
3208 * If the screens configuration does not allow the window to
3209 * be moved from one screen to another, then the window is
3210 * only placed at the location determined according to the
3211 * above conditions and its {@code GraphicsConfiguration} is
3212 * not changed.
3213 * <p>
3214 * <b>Note</b>: If the lower edge of the window is out of the screen,
3215 * then the window is placed to the side of the {@code Component}
3216 * that is closest to the center of the screen. So if the
3217 * component is on the right part of the screen, the window
3218 * is placed to its left, and vice versa.
3219 * <p>
3220 * If after the window location has been calculated, the upper,
3221 * left, or right edge of the window is out of the screen,
3222 * then the window is located in such a way that the upper,
3223 * left, or right edge of the window coincides with the
3224 * corresponding edge of the screen. If both left and right
3225 * edges of the window are out of the screen, the window is
3226 * placed at the left side of the screen. The similar placement
3227 * will occur if both top and bottom edges are out of the screen.
3228 * In that case, the window is placed at the top side of the screen.
3229 * <p>
3230 * The method changes the geometry-related data. Therefore,
3231 * the native windowing system may ignore such requests, or it may modify
3232 * the requested data, so that the {@code Window} object is placed and sized
3233 * in a way that corresponds closely to the desktop settings.
3234 *
3235 * @param c the component in relation to which the window's location
3236 * is determined
3237 * @see java.awt.GraphicsEnvironment#getCenterPoint
3238 * @since 1.4
3239 */
3240 public void setLocationRelativeTo(Component c) {
3241 // target location
3242 int dx = 0, dy = 0;
3243 // target GC
3244 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3245 Rectangle gcBounds = gc.getBounds();
3246
3247 Dimension windowSize = getSize();
3248
3249 // search a top-level of c
3250 Window componentWindow = SunToolkit.getContainingWindow(c);
3251 if ((c == null) || (componentWindow == null)) {
3252 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3253 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3254 gcBounds = gc.getBounds();
3255 Point centerPoint = ge.getCenterPoint();
3256 dx = centerPoint.x - windowSize.width / 2;
3257 dy = centerPoint.y - windowSize.height / 2;
3258 } else if (!c.isShowing()) {
3259 gc = componentWindow.getGraphicsConfiguration();
3260 gcBounds = gc.getBounds();
3261 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3262 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3263 } else {
3264 gc = componentWindow.getGraphicsConfiguration();
3265 gcBounds = gc.getBounds();
3266 Dimension compSize = c.getSize();
3267 Point compLocation = c.getLocationOnScreen();
3268 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3269 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3270
3271 // Adjust for bottom edge being offscreen
3272 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3273 dy = gcBounds.y + gcBounds.height - windowSize.height;
3274 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3275 dx = compLocation.x + compSize.width;
3276 } else {
3277 dx = compLocation.x - windowSize.width;
3278 }
3279 }
3280 }
3281
3282 // Avoid being placed off the edge of the screen:
3283 // bottom
3284 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3285 dy = gcBounds.y + gcBounds.height - windowSize.height;
3286 }
3287 // top
3288 if (dy < gcBounds.y) {
3289 dy = gcBounds.y;
3290 }
3291 // right
3292 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3293 dx = gcBounds.x + gcBounds.width - windowSize.width;
3294 }
3295 // left
3296 if (dx < gcBounds.x) {
3297 dx = gcBounds.x;
3298 }
3299
3300 setLocation(dx, dy);
3301 }
3302
3303 /**
3304 * Overridden from Component. Top-level Windows should not propagate a
3305 * MouseWheelEvent beyond themselves into their owning Windows.
3306 */
3307 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3308
3309 /**
3310 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3311 */
3312 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3313
3314 /**
3315 * Creates a new strategy for multi-buffering on this component.
3316 * Multi-buffering is useful for rendering performance. This method
3317 * attempts to create the best strategy available with the number of
3318 * buffers supplied. It will always create a {@code BufferStrategy}
3319 * with that number of buffers.
3320 * A page-flipping strategy is attempted first, then a blitting strategy
3321 * using accelerated buffers. Finally, an unaccelerated blitting
3322 * strategy is used.
3323 * <p>
3324 * Each time this method is called,
3325 * the existing buffer strategy for this component is discarded.
3326 * @param numBuffers number of buffers to create
3327 * @exception IllegalArgumentException if numBuffers is less than 1.
3328 * @exception IllegalStateException if the component is not displayable
3329 * @see #isDisplayable
3330 * @see #getBufferStrategy
3331 * @since 1.4
3332 */
3333 public void createBufferStrategy(int numBuffers) {
3334 super.createBufferStrategy(numBuffers);
3335 }
3336
3337 /**
3338 * Creates a new strategy for multi-buffering on this component with the
3339 * required buffer capabilities. This is useful, for example, if only
3340 * accelerated memory or page flipping is desired (as specified by the
3341 * buffer capabilities).
3342 * <p>
3343 * Each time this method
3344 * is called, the existing buffer strategy for this component is discarded.
3345 * @param numBuffers number of buffers to create, including the front buffer
3346 * @param caps the required capabilities for creating the buffer strategy;
3347 * cannot be {@code null}
3348 * @exception AWTException if the capabilities supplied could not be
3349 * supported or met; this may happen, for example, if there is not enough
3350 * accelerated memory currently available, or if page flipping is specified
3351 * but not possible.
3352 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3353 * caps is {@code null}
3354 * @see #getBufferStrategy
3355 * @since 1.4
3356 */
3357 public void createBufferStrategy(int numBuffers,
3358 BufferCapabilities caps) throws AWTException {
3359 super.createBufferStrategy(numBuffers, caps);
3360 }
3361
3362 /**
3363 * Returns the {@code BufferStrategy} used by this component. This
3364 * method will return null if a {@code BufferStrategy} has not yet
3365 * been created or has been disposed.
3366 *
3367 * @return the buffer strategy used by this component
3368 * @see #createBufferStrategy
3369 * @since 1.4
3370 */
3371 public BufferStrategy getBufferStrategy() {
3372 return super.getBufferStrategy();
3373 }
3374
3375 Component getTemporaryLostComponent() {
3376 return temporaryLostComponent;
3377 }
3378 Component setTemporaryLostComponent(Component component) {
3379 Component previousComp = temporaryLostComponent;
3380 // Check that "component" is an acceptable focus owner and don't store it otherwise
3381 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3382 if (component == null || component.canBeFocusOwner()) {
3383 temporaryLostComponent = component;
3384 } else {
3385 temporaryLostComponent = null;
3386 }
3387 return previousComp;
3388 }
3389
3390 /**
3391 * Checks whether this window can contain focus owner.
3392 * Verifies that it is focusable and as container it can container focus owner.
3393 * @since 1.5
3394 */
3395 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3396 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3397 }
3398
3399 private boolean locationByPlatform = locationByPlatformProp;
3400
3401
3402 /**
3403 * Sets whether this Window should appear at the default location for the
3404 * native windowing system or at the current location (returned by
3405 * {@code getLocation}) the next time the Window is made visible.
3406 * This behavior resembles a native window shown without programmatically
3407 * setting its location. Most windowing systems cascade windows if their
3408 * locations are not explicitly set. The actual location is determined once the
3409 * window is shown on the screen.
3410 * <p>
3411 * This behavior can also be enabled by setting the System Property
3412 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3413 * take precedence.
3414 * <p>
3415 * Calls to {@code setVisible}, {@code setLocation} and
3416 * {@code setBounds} after calling {@code setLocationByPlatform} clear
3417 * this property of the Window.
3418 * <p>
3419 * For example, after the following code is executed:
3420 * <pre>
3421 * setLocationByPlatform(true);
3422 * setVisible(true);
3423 * boolean flag = isLocationByPlatform();
3424 * </pre>
3425 * The window will be shown at platform's default location and
3426 * {@code flag} will be {@code false}.
3427 * <p>
3428 * In the following sample:
3429 * <pre>
3430 * setLocationByPlatform(true);
3431 * setLocation(10, 10);
3432 * boolean flag = isLocationByPlatform();
3433 * setVisible(true);
3434 * </pre>
3435 * The window will be shown at (10, 10) and {@code flag} will be
3436 * {@code false}.
3437 *
3438 * @param locationByPlatform {@code true} if this Window should appear
3439 * at the default location, {@code false} if at the current location
3440 * @throws IllegalComponentStateException if the window
3441 * is showing on screen and locationByPlatform is {@code true}.
3442 * @see #setLocation
3443 * @see #isShowing
3444 * @see #setVisible
3445 * @see #isLocationByPlatform
3446 * @see java.lang.System#getProperty(String)
3447 * @since 1.5
3448 */
3449 public void setLocationByPlatform(boolean locationByPlatform) {
3450 synchronized (getTreeLock()) {
3451 if (locationByPlatform && isShowing()) {
3452 throw new IllegalComponentStateException("The window is showing on screen.");
3453 }
3454 this.locationByPlatform = locationByPlatform;
3455 }
3456 }
3457
3458 /**
3459 * Returns {@code true} if this Window will appear at the default location
3460 * for the native windowing system the next time this Window is made visible.
3461 * This method always returns {@code false} if the Window is showing on the
3462 * screen.
3463 *
3464 * @return whether this Window will appear at the default location
3465 * @see #setLocationByPlatform
3466 * @see #isShowing
3467 * @since 1.5
3468 */
3469 public boolean isLocationByPlatform() {
3470 synchronized (getTreeLock()) {
3471 return locationByPlatform;
3472 }
3473 }
3474
3475 /**
3476 * {@inheritDoc}
3477 * <p>
3478 * The {@code width} or {@code height} values
3479 * are automatically enlarged if either is less than
3480 * the minimum size as specified by previous call to
3481 * {@code setMinimumSize}.
3482 * <p>
3483 * The method changes the geometry-related data. Therefore,
3484 * the native windowing system may ignore such requests, or it may modify
3485 * the requested data, so that the {@code Window} object is placed and sized
3486 * in a way that corresponds closely to the desktop settings.
3487 *
3488 * @see #getBounds
3489 * @see #setLocation(int, int)
3490 * @see #setLocation(Point)
3491 * @see #setSize(int, int)
3492 * @see #setSize(Dimension)
3493 * @see #setMinimumSize
3494 * @see #setLocationByPlatform
3495 * @see #isLocationByPlatform
3496 * @since 1.6
3497 */
3498 public void setBounds(int x, int y, int width, int height) {
3499 synchronized (getTreeLock()) {
3500 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3501 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3502 {
3503 locationByPlatform = false;
3504 }
3505 super.setBounds(x, y, width, height);
3506 }
3507 }
3508
3509 /**
3510 * {@inheritDoc}
3511 * <p>
3512 * The {@code r.width} or {@code r.height} values
3513 * will be automatically enlarged if either is less than
3514 * the minimum size as specified by previous call to
3515 * {@code setMinimumSize}.
3516 * <p>
3517 * The method changes the geometry-related data. Therefore,
3518 * the native windowing system may ignore such requests, or it may modify
3519 * the requested data, so that the {@code Window} object is placed and sized
3520 * in a way that corresponds closely to the desktop settings.
3521 *
3522 * @see #getBounds
3523 * @see #setLocation(int, int)
3524 * @see #setLocation(Point)
3525 * @see #setSize(int, int)
3526 * @see #setSize(Dimension)
3527 * @see #setMinimumSize
3528 * @see #setLocationByPlatform
3529 * @see #isLocationByPlatform
3530 * @since 1.6
3531 */
3532 public void setBounds(Rectangle r) {
3533 setBounds(r.x, r.y, r.width, r.height);
3534 }
3535
3536 /**
3537 * Determines whether this component will be displayed on the screen.
3538 * @return {@code true} if the component and all of its ancestors
3539 * until a toplevel window are visible, {@code false} otherwise
3540 */
3541 boolean isRecursivelyVisible() {
3542 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3543 // We're overriding isRecursivelyVisible to implement this policy.
3544 return visible;
3545 }
3546
3547
3548 // ******************** SHAPES & TRANSPARENCY CODE ********************
3549
3550 /**
3551 * Returns the opacity of the window.
3552 *
3553 * @return the opacity of the window
3554 *
3555 * @see Window#setOpacity(float)
3556 * @see GraphicsDevice.WindowTranslucency
3557 *
3558 * @since 1.7
3559 */
3560 public float getOpacity() {
3561 synchronized (getTreeLock()) {
3562 return opacity;
3563 }
3564 }
3565
3566 /**
3567 * Sets the opacity of the window.
3568 * <p>
3569 * The opacity value is in the range [0..1]. Note that setting the opacity
3570 * level of 0 may or may not disable the mouse event handling on this
3571 * window. This is a platform-dependent behavior.
3572 * <p>
3573 * The following conditions must be met in order to set the opacity value
3574 * less than {@code 1.0f}:
3575 * <ul>
3576 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3577 * translucency must be supported by the underlying system
3578 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3579 * and {@link Dialog#setUndecorated})
3580 * <li>The window must not be in full-screen mode (see {@link
3581 * GraphicsDevice#setFullScreenWindow(Window)})
3582 * </ul>
3583 * <p>
3584 * If the requested opacity value is less than {@code 1.0f}, and any of the
3585 * above conditions are not met, the window opacity will not change,
3586 * and the {@code IllegalComponentStateException} will be thrown.
3587 * <p>
3588 * The translucency levels of individual pixels may also be effected by the
3589 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3590 * current shape of this window (see {@link #setShape(Shape)}).
3591 *
3592 * @param opacity the opacity level to set to the window
3593 *
3594 * @throws IllegalArgumentException if the opacity is out of the range
3595 * [0..1]
3596 * @throws IllegalComponentStateException if the window is decorated and
3597 * the opacity is less than {@code 1.0f}
3598 * @throws IllegalComponentStateException if the window is in full screen
3599 * mode, and the opacity is less than {@code 1.0f}
3600 * @throws UnsupportedOperationException if the {@code
3601 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3602 * translucency is not supported and the opacity is less than
3603 * {@code 1.0f}
3604 *
3605 * @see Window#getOpacity
3606 * @see Window#setBackground(Color)
3607 * @see Window#setShape(Shape)
3608 * @see Frame#isUndecorated
3609 * @see Dialog#isUndecorated
3610 * @see GraphicsDevice.WindowTranslucency
3611 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3612 *
3613 * @since 1.7
3614 */
3615 public void setOpacity(float opacity) {
3616 synchronized (getTreeLock()) {
3617 if (opacity < 0.0f || opacity > 1.0f) {
3618 throw new IllegalArgumentException(
3619 "The value of opacity should be in the range [0.0f .. 1.0f].");
3620 }
3621 if (opacity < 1.0f) {
3622 GraphicsConfiguration gc = getGraphicsConfiguration();
3623 GraphicsDevice gd = gc.getDevice();
3624 if (gc.getDevice().getFullScreenWindow() == this) {
3625 throw new IllegalComponentStateException(
3626 "Setting opacity for full-screen window is not supported.");
3627 }
3628 if (!gd.isWindowTranslucencySupported(
3629 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3630 {
3631 throw new UnsupportedOperationException(
3632 "TRANSLUCENT translucency is not supported.");
3633 }
3634 }
3635 this.opacity = opacity;
3636 WindowPeer peer = (WindowPeer)getPeer();
3637 if (peer != null) {
3638 peer.setOpacity(opacity);
3639 }
3640 }
3641 }
3642
3643 /**
3644 * Returns the shape of the window.
3645 *
3646 * The value returned by this method may not be the same as
3647 * previously set with {@code setShape(shape)}, but it is guaranteed
3648 * to represent the same shape.
3649 *
3650 * @return the shape of the window or {@code null} if no
3651 * shape is specified for the window
3652 *
3653 * @see Window#setShape(Shape)
3654 * @see GraphicsDevice.WindowTranslucency
3655 *
3656 * @since 1.7
3657 */
3658 public Shape getShape() {
3659 synchronized (getTreeLock()) {
3660 return shape == null ? null : new Path2D.Float(shape);
3661 }
3662 }
3663
3664 /**
3665 * Sets the shape of the window.
3666 * <p>
3667 * Setting a shape cuts off some parts of the window. Only the parts that
3668 * belong to the given {@link Shape} remain visible and clickable. If
3669 * the shape argument is {@code null}, this method restores the default
3670 * shape, making the window rectangular on most platforms.
3671 * <p>
3672 * The following conditions must be met to set a non-null shape:
3673 * <ul>
3674 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3675 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3676 * underlying system
3677 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3678 * and {@link Dialog#setUndecorated})
3679 * <li>The window must not be in full-screen mode (see {@link
3680 * GraphicsDevice#setFullScreenWindow(Window)})
3681 * </ul>
3682 * <p>
3683 * If the requested shape is not {@code null}, and any of the above
3684 * conditions are not met, the shape of this window will not change,
3685 * and either the {@code UnsupportedOperationException} or {@code
3686 * IllegalComponentStateException} will be thrown.
3687 * <p>
3688 * The translucency levels of individual pixels may also be effected by the
3689 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3690 * opacity value (see {@link #setOpacity(float)}). See {@link
3691 * GraphicsDevice.WindowTranslucency} for more details.
3692 *
3693 * @param shape the shape to set to the window
3694 *
3695 * @throws IllegalComponentStateException if the shape is not {@code
3696 * null} and the window is decorated
3697 * @throws IllegalComponentStateException if the shape is not {@code
3698 * null} and the window is in full-screen mode
3699 * @throws UnsupportedOperationException if the shape is not {@code
3700 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3701 * PERPIXEL_TRANSPARENT} translucency is not supported
3702 *
3703 * @see Window#getShape()
3704 * @see Window#setBackground(Color)
3705 * @see Window#setOpacity(float)
3706 * @see Frame#isUndecorated
3707 * @see Dialog#isUndecorated
3708 * @see GraphicsDevice.WindowTranslucency
3709 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3710 *
3711 * @since 1.7
3712 */
3713 public void setShape(Shape shape) {
3714 synchronized (getTreeLock()) {
3715 if (shape != null) {
3716 GraphicsConfiguration gc = getGraphicsConfiguration();
3717 GraphicsDevice gd = gc.getDevice();
3718 if (gc.getDevice().getFullScreenWindow() == this) {
3719 throw new IllegalComponentStateException(
3720 "Setting shape for full-screen window is not supported.");
3721 }
3722 if (!gd.isWindowTranslucencySupported(
3723 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3724 {
3725 throw new UnsupportedOperationException(
3726 "PERPIXEL_TRANSPARENT translucency is not supported.");
3727 }
3728 }
3729 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3730 WindowPeer peer = (WindowPeer)getPeer();
3731 if (peer != null) {
3732 peer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3733 }
3734 }
3735 }
3736
3737 /**
3738 * Gets the background color of this window.
3739 * <p>
3740 * Note that the alpha component of the returned color indicates whether
3741 * the window is in the non-opaque (per-pixel translucent) mode.
3742 *
3743 * @return this component's background color
3744 *
3745 * @see Window#setBackground(Color)
3746 * @see Window#isOpaque
3747 * @see GraphicsDevice.WindowTranslucency
3748 */
3749 @Override
3750 public Color getBackground() {
3751 return super.getBackground();
3752 }
3753
3754 /**
3755 * Sets the background color of this window.
3756 * <p>
3757 * If the windowing system supports the {@link
3758 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3759 * translucency, the alpha component of the given background color
3760 * may effect the mode of operation for this window: it indicates whether
3761 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3762 * (alpha is less than {@code 1.0f}). If the given background color is
3763 * {@code null}, the window is considered completely opaque.
3764 * <p>
3765 * All the following conditions must be met to enable the per-pixel
3766 * transparency mode for this window:
3767 * <ul>
3768 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3769 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3770 * device where this window is located
3771 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3772 * and {@link Dialog#setUndecorated})
3773 * <li>The window must not be in full-screen mode (see {@link
3774 * GraphicsDevice#setFullScreenWindow(Window)})
3775 * </ul>
3776 * <p>
3777 * If the alpha component of the requested background color is less than
3778 * {@code 1.0f}, and any of the above conditions are not met, the background
3779 * color of this window will not change, the alpha component of the given
3780 * background color will not affect the mode of operation for this window,
3781 * and either the {@code UnsupportedOperationException} or {@code
3782 * IllegalComponentStateException} will be thrown.
3783 * <p>
3784 * When the window is per-pixel translucent, the drawing sub-system
3785 * respects the alpha value of each individual pixel. If a pixel gets
3786 * painted with the alpha color component equal to zero, it becomes
3787 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3788 * pixel is fully opaque. Interim values of the alpha color component make
3789 * the pixel semi-transparent. In this mode, the background of the window
3790 * gets painted with the alpha value of the given background color. If the
3791 * alpha value of the argument of this method is equal to {@code 0}, the
3792 * background is not painted at all.
3793 * <p>
3794 * The actual level of translucency of a given pixel also depends on window
3795 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3796 * this window (see {@link #setShape(Shape)}).
3797 * <p>
3798 * Note that painting a pixel with the alpha value of {@code 0} may or may
3799 * not disable the mouse event handling on this pixel. This is a
3800 * platform-dependent behavior. To make sure the mouse events do not get
3801 * dispatched to a particular pixel, the pixel must be excluded from the
3802 * shape of the window.
3803 * <p>
3804 * Enabling the per-pixel translucency mode may change the graphics
3805 * configuration of this window due to the native platform requirements.
3806 *
3807 * @param bgColor the color to become this window's background color.
3808 *
3809 * @throws IllegalComponentStateException if the alpha value of the given
3810 * background color is less than {@code 1.0f} and the window is decorated
3811 * @throws IllegalComponentStateException if the alpha value of the given
3812 * background color is less than {@code 1.0f} and the window is in
3813 * full-screen mode
3814 * @throws UnsupportedOperationException if the alpha value of the given
3815 * background color is less than {@code 1.0f} and {@link
3816 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3817 * PERPIXEL_TRANSLUCENT} translucency is not supported
3818 *
3819 * @see Window#getBackground
3820 * @see Window#isOpaque
3821 * @see Window#setOpacity(float)
3822 * @see Window#setShape(Shape)
3823 * @see Frame#isUndecorated
3824 * @see Dialog#isUndecorated
3825 * @see GraphicsDevice.WindowTranslucency
3826 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3827 * @see GraphicsConfiguration#isTranslucencyCapable()
3828 */
3829 @Override
3830 public void setBackground(Color bgColor) {
3831 Color oldBg = getBackground();
3832 super.setBackground(bgColor);
3833 if (oldBg != null && oldBg.equals(bgColor)) {
3834 return;
3835 }
3836 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3837 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3838 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3839 GraphicsConfiguration gc = getGraphicsConfiguration();
3840 GraphicsDevice gd = gc.getDevice();
3841 if (gc.getDevice().getFullScreenWindow() == this) {
3842 throw new IllegalComponentStateException(
3843 "Making full-screen window non opaque is not supported.");
3844 }
3845 if (!gc.isTranslucencyCapable()) {
3846 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3847 if (capableGC == null) {
3848 throw new UnsupportedOperationException(
3849 "PERPIXEL_TRANSLUCENT translucency is not supported");
3850 }
3851 setGraphicsConfiguration(capableGC);
3852 }
3853 setLayersOpaque(this, false);
3854 } else if ((oldAlpha < 255) && (alpha == 255)) {
3855 setLayersOpaque(this, true);
3856 }
3857 WindowPeer peer = (WindowPeer)getPeer();
3858 if (peer != null) {
3859 peer.setOpaque(alpha == 255);
3860 }
3861 }
3862
3863 /**
3864 * Indicates if the window is currently opaque.
3865 * <p>
3866 * The method returns {@code false} if the background color of the window
3867 * is not {@code null} and the alpha component of the color is less than
3868 * {@code 1.0f}. The method returns {@code true} otherwise.
3869 *
3870 * @return {@code true} if the window is opaque, {@code false} otherwise
3871 *
3872 * @see Window#getBackground
3873 * @see Window#setBackground(Color)
3874 * @since 1.7
3875 */
3876 @Override
3877 public boolean isOpaque() {
3878 Color bg = getBackground();
3879 return bg != null ? bg.getAlpha() == 255 : true;
3880 }
3881
3882 private void updateWindow() {
3883 synchronized (getTreeLock()) {
3884 WindowPeer peer = (WindowPeer)getPeer();
3885 if (peer != null) {
3886 peer.updateWindow();
3887 }
3888 }
3889 }
3890
3891 /**
3892 * {@inheritDoc}
3893 *
3894 * @since 1.7
3895 */
3896 @Override
3897 public void paint(Graphics g) {
3898 if (!isOpaque()) {
3899 Graphics gg = g.create();
3900 try {
3901 if (gg instanceof Graphics2D) {
3902 gg.setColor(getBackground());
3903 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3904 gg.fillRect(0, 0, getWidth(), getHeight());
3905 }
3906 } finally {
3907 gg.dispose();
3908 }
3909 }
3910 super.paint(g);
3911 }
3912
3913 private static void setLayersOpaque(Component component, boolean isOpaque) {
3914 // Shouldn't use instanceof to avoid loading Swing classes
3915 // if it's a pure AWT application.
3916 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3917 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3918 javax.swing.JRootPane root = rpc.getRootPane();
3919 javax.swing.JLayeredPane lp = root.getLayeredPane();
3920 Container c = root.getContentPane();
3921 javax.swing.JComponent content =
3922 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3923 lp.setOpaque(isOpaque);
3924 root.setOpaque(isOpaque);
3925 if (content != null) {
3926 content.setOpaque(isOpaque);
3927
3928 // Iterate down one level to see whether we have a JApplet
3929 // (which is also a RootPaneContainer) which requires processing
3930 int numChildren = content.getComponentCount();
3931 if (numChildren > 0) {
3932 Component child = content.getComponent(0);
3933 // It's OK to use instanceof here because we've
3934 // already loaded the RootPaneContainer class by now
3935 if (child instanceof javax.swing.RootPaneContainer) {
3936 setLayersOpaque(child, isOpaque);
3937 }
3938 }
3939 }
3940 }
3941 }
3942
3943
3944 // ************************** MIXING CODE *******************************
3945
3946 // A window has an owner, but it does NOT have a container
3947 @Override
3948 final Container getContainer() {
3949 return null;
3950 }
3951
3952 /**
3953 * Applies the shape to the component
3954 * @param shape Shape to be applied to the component
3955 */
3956 @Override
3957 final void applyCompoundShape(Region shape) {
3958 // The shape calculated by mixing code is not intended to be applied
3959 // to windows or frames
3960 }
3961
3962 @Override
3963 final void applyCurrentShape() {
3964 // The shape calculated by mixing code is not intended to be applied
3965 // to windows or frames
3966 }
3967
3968 @Override
3969 final void mixOnReshaping() {
3970 // The shape calculated by mixing code is not intended to be applied
3971 // to windows or frames
3972 }
3973
3974 @Override
3975 final Point getLocationOnWindow() {
3976 return new Point(0, 0);
3977 }
3978
3979 // ****************** END OF MIXING CODE ********************************
3980
3981 /**
3982 * Limit the given double value with the given range.
3983 */
3984 private static double limit(double value, double min, double max) {
3985 value = Math.max(value, min);
3986 value = Math.min(value, max);
3987 return value;
3988 }
3989
3990 /**
3991 * Calculate the position of the security warning.
3992 *
3993 * This method gets the window location/size as reported by the native
3994 * system since the locally cached values may represent outdated data.
3995 *
3996 * The method is used from the native code, or via AWTAccessor.
3997 *
3998 * NOTE: this method is invoked on the toolkit thread, and therefore is not
3999 * supposed to become public/user-overridable.
4000 */
4001 private Point2D calculateSecurityWarningPosition(double x, double y,
4002 double w, double h)
4003 {
4004 // The position according to the spec of SecurityWarning.setPosition()
4005 double wx = x + w * securityWarningAlignmentX + securityWarningPointX;
4006 double wy = y + h * securityWarningAlignmentY + securityWarningPointY;
4007
4008 // First, make sure the warning is not too far from the window bounds
4009 wx = Window.limit(wx,
4010 x - securityWarningWidth - 2,
4011 x + w + 2);
4012 wy = Window.limit(wy,
4013 y - securityWarningHeight - 2,
4014 y + h + 2);
4015
4016 // Now make sure the warning window is visible on the screen
4017 GraphicsConfiguration graphicsConfig =
4018 getGraphicsConfiguration_NoClientCode();
4019 Rectangle screenBounds = graphicsConfig.getBounds();
4020 Insets screenInsets =
4021 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
4022
4023 wx = Window.limit(wx,
4024 screenBounds.x + screenInsets.left,
4025 screenBounds.x + screenBounds.width - screenInsets.right
4026 - securityWarningWidth);
4027 wy = Window.limit(wy,
4028 screenBounds.y + screenInsets.top,
4029 screenBounds.y + screenBounds.height - screenInsets.bottom
4030 - securityWarningHeight);
4031
4032 return new Point2D.Double(wx, wy);
4033 }
4034
4035 static {
4036 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
4037 public float getOpacity(Window window) {
4038 return window.opacity;
4039 }
4040 public void setOpacity(Window window, float opacity) {
4041 window.setOpacity(opacity);
4042 }
4043 public Shape getShape(Window window) {
4044 return window.getShape();
4045 }
4046 public void setShape(Window window, Shape shape) {
4047 window.setShape(shape);
4048 }
4049 public void setOpaque(Window window, boolean opaque) {
4050 Color bg = window.getBackground();
4051 if (bg == null) {
4052 bg = new Color(0, 0, 0, 0);
4053 }
4054 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(),
4055 opaque ? 255 : 0));
4056 }
4057 public void updateWindow(Window window) {
4058 window.updateWindow();
4059 }
4060
4061 public Dimension getSecurityWarningSize(Window window) {
4062 return new Dimension(window.securityWarningWidth,
4063 window.securityWarningHeight);
4064 }
4065
4066 public void setSecurityWarningSize(Window window, int width, int height)
4067 {
4068 window.securityWarningWidth = width;
4069 window.securityWarningHeight = height;
4070 }
4071
4072 public void setSecurityWarningPosition(Window window,
4073 Point2D point, float alignmentX, float alignmentY)
4074 {
4075 window.securityWarningPointX = point.getX();
4076 window.securityWarningPointY = point.getY();
4077 window.securityWarningAlignmentX = alignmentX;
4078 window.securityWarningAlignmentY = alignmentY;
4079
4080 synchronized (window.getTreeLock()) {
4081 WindowPeer peer = (WindowPeer)window.getPeer();
4082 if (peer != null) {
4083 peer.repositionSecurityWarning();
4084 }
4085 }
4086 }
4087
4088 public Point2D calculateSecurityWarningPosition(Window window,
4089 double x, double y, double w, double h)
4090 {
4091 return window.calculateSecurityWarningPosition(x, y, w, h);
4092 }
4093
4094 public void setLWRequestStatus(Window changed, boolean status) {
4095 changed.syncLWRequests = status;
4096 }
4097
4098 public boolean isAutoRequestFocus(Window w) {
4099 return w.autoRequestFocus;
4100 }
4101
4102 public boolean isTrayIconWindow(Window w) {
4103 return w.isTrayIconWindow;
4104 }
4105
4106 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4107 w.isTrayIconWindow = isTrayIconWindow;
4108 }
4109 }); // WindowAccessor
4110 } // static
4111
4112 // a window doesn't need to be updated in the Z-order.
4113 @Override
4114 void updateZOrder() {}
4115
4116 } // class Window
4117
4118
4119 /**
4120 * This class is no longer used, but is maintained for Serialization
4121 * backward-compatibility.
4122 */
4123 class FocusManager implements java.io.Serializable {
4124 Container focusRoot;
4125 Component focusOwner;
4126
4127 /*
4128 * JDK 1.1 serialVersionUID
4129 */
4130 static final long serialVersionUID = 2491878825643557906L;
4131 }