1 /*
2 * Copyright (c) 1995, 2015, 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.peer.ComponentPeer;
33 import java.awt.peer.WindowPeer;
34 import java.beans.PropertyChangeListener;
35 import java.io.IOException;
36 import java.io.ObjectInputStream;
37 import java.io.ObjectOutputStream;
38 import java.io.OptionalDataException;
39 import java.io.Serializable;
40 import java.lang.ref.WeakReference;
41 import java.lang.reflect.InvocationTargetException;
42 import java.security.AccessController;
43 import java.util.ArrayList;
44 import java.util.Arrays;
45 import java.util.EventListener;
46 import java.util.Locale;
47 import java.util.ResourceBundle;
48 import java.util.Set;
49 import java.util.Vector;
50 import java.util.concurrent.atomic.AtomicBoolean;
51 import javax.accessibility.*;
52 import sun.awt.AWTAccessor;
53 import sun.awt.AWTPermissions;
54 import sun.awt.AppContext;
55 import sun.awt.CausedFocusEvent;
56 import sun.awt.SunToolkit;
57 import sun.awt.util.IdentityArrayList;
58 import sun.java2d.pipe.Region;
59 import sun.security.action.GetPropertyAction;
60 import sun.util.logging.PlatformLogger;
61
62 /**
63 * A {@code Window} object is a top-level window with no borders and no
64 * menubar.
65 * The default layout for a window is {@code BorderLayout}.
66 * <p>
67 * A window must have either a frame, dialog, or another window defined as its
68 * owner when it's constructed.
69 * <p>
70 * In a multi-screen environment, you can create a {@code Window}
71 * on a different screen device by constructing the {@code Window}
72 * with {@link #Window(Window, GraphicsConfiguration)}. The
73 * {@code GraphicsConfiguration} object is one of the
74 * {@code GraphicsConfiguration} objects of the target screen device.
75 * <p>
76 * In a virtual device multi-screen environment in which the desktop
77 * area could span multiple physical screen devices, the bounds of all
78 * configurations are relative to the virtual device coordinate system.
79 * The origin of the virtual-coordinate system is at the upper left-hand
80 * corner of the primary physical screen. Depending on the location of
81 * the primary screen in the virtual device, negative coordinates are
82 * possible, as shown in the following figure.
83 * <p>
84 * <img src="doc-files/MultiScreen.gif"
85 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)."
86 * style="float:center; margin: 7px 10px;">
87 * <p>
88 * In such an environment, when calling {@code setLocation},
89 * you must pass a virtual coordinate to this method. Similarly,
90 * calling {@code getLocationOnScreen} on a {@code Window} returns
91 * virtual device coordinates. Call the {@code getBounds} method
92 * of a {@code GraphicsConfiguration} to find its origin in the virtual
93 * coordinate system.
94 * <p>
95 * The following code sets the location of a {@code Window}
96 * at (10, 10) relative to the origin of the physical screen
97 * of the corresponding {@code GraphicsConfiguration}. If the
98 * bounds of the {@code GraphicsConfiguration} is not taken
99 * into account, the {@code Window} location would be set
100 * at (10, 10) relative to the virtual-coordinate system and would appear
101 * on the primary physical screen, which might be different from the
102 * physical screen of the specified {@code GraphicsConfiguration}.
103 *
104 * <pre>
105 * Window w = new Window(Window owner, GraphicsConfiguration gc);
106 * Rectangle bounds = gc.getBounds();
107 * w.setLocation(10 + bounds.x, 10 + bounds.y);
108 * </pre>
109 *
110 * <p>
111 * Note: the location and size of top-level windows (including
112 * {@code Window}s, {@code Frame}s, and {@code Dialog}s)
113 * are under the control of the desktop's window management system.
114 * Calls to {@code setLocation}, {@code setSize}, and
115 * {@code setBounds} are requests (not directives) which are
116 * forwarded to the window management system. Every effort will be
117 * made to honor such requests. However, in some cases the window
118 * management system may ignore such requests, or modify the requested
119 * geometry in order to place and size the {@code Window} in a way
120 * that more closely matches the desktop settings.
121 * <p>
122 * Due to the asynchronous nature of native event handling, the results
123 * returned by {@code getBounds}, {@code getLocation},
124 * {@code getLocationOnScreen}, and {@code getSize} might not
125 * reflect the actual geometry of the Window on screen until the last
126 * request has been processed. During the processing of subsequent
127 * requests these values might change accordingly while the window
128 * management system fulfills the requests.
129 * <p>
130 * An application may set the size and location of an invisible
131 * {@code Window} arbitrarily, but the window management system may
132 * subsequently change its size and/or location when the
133 * {@code Window} is made visible. One or more {@code ComponentEvent}s
134 * will be generated to indicate the new geometry.
135 * <p>
136 * Windows are capable of generating the following WindowEvents:
137 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus.
138 *
139 * @author Sami Shaio
140 * @author Arthur van Hoff
141 * @see WindowEvent
142 * @see #addWindowListener
143 * @see java.awt.BorderLayout
144 * @since 1.0
145 */
146 public class Window extends Container implements Accessible {
147
148 /**
149 * Enumeration of available <i>window types</i>.
150 *
151 * A window type defines the generic visual appearance and behavior of a
152 * top-level window. For example, the type may affect the kind of
153 * decorations of a decorated {@code Frame} or {@code Dialog} instance.
154 * <p>
155 * Some platforms may not fully support a certain window type. Depending on
156 * the level of support, some properties of the window type may be
157 * disobeyed.
158 *
159 * @see #getType
160 * @see #setType
161 * @since 1.7
162 */
163 public static enum Type {
164 /**
165 * Represents a <i>normal</i> window.
166 *
167 * This is the default type for objects of the {@code Window} class or
168 * its descendants. Use this type for regular top-level windows.
169 */
170 NORMAL,
171
172 /**
173 * Represents a <i>utility</i> window.
174 *
175 * A utility window is usually a small window such as a toolbar or a
176 * palette. The native system may render the window with smaller
177 * title-bar if the window is either a {@code Frame} or a {@code
178 * Dialog} object, and if it has its decorations enabled.
179 */
180 UTILITY,
181
182 /**
183 * Represents a <i>popup</i> window.
184 *
185 * A popup window is a temporary window such as a drop-down menu or a
186 * tooltip. On some platforms, windows of that type may be forcibly
187 * made undecorated even if they are instances of the {@code Frame} or
188 * {@code Dialog} class, and have decorations enabled.
189 */
190 POPUP
191 }
192
193 /**
194 * This represents the warning message that is
195 * to be displayed in a non secure window. ie :
196 * a window that has a security manager installed that denies
197 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
198 * This message can be displayed anywhere in the window.
199 *
200 * @serial
201 * @see #getWarningString
202 */
203 String warningString;
204
205 /**
206 * {@code icons} is the graphical way we can
207 * represent the frames and dialogs.
208 * {@code Window} can't display icon but it's
209 * being inherited by owned {@code Dialog}s.
210 *
211 * @serial
212 * @see #getIconImages
213 * @see #setIconImages
214 */
215 transient java.util.List<Image> icons;
216
217 /**
218 * Holds the reference to the component which last had focus in this window
219 * before it lost focus.
220 */
221 private transient Component temporaryLostComponent;
222
223 static boolean systemSyncLWRequests = false;
224 boolean syncLWRequests = false;
225 transient boolean beforeFirstShow = true;
226 private transient boolean disposing = false;
227 transient WindowDisposerRecord disposerRecord = null;
228
229 static final int OPENED = 0x01;
230
231 /**
232 * An Integer value representing the Window State.
233 *
234 * @serial
235 * @since 1.2
236 * @see #show
237 */
238 int state;
239
240 /**
241 * A boolean value representing Window always-on-top state
242 * @since 1.5
243 * @serial
244 * @see #setAlwaysOnTop
245 * @see #isAlwaysOnTop
246 */
247 private boolean alwaysOnTop;
248
249 /**
250 * Contains all the windows that have a peer object associated,
251 * i. e. between addNotify() and removeNotify() calls. The list
252 * of all Window instances can be obtained from AppContext object.
253 *
254 * @since 1.6
255 */
256 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>();
257
258 /**
259 * A vector containing all the windows this
260 * window currently owns.
261 * @since 1.2
262 * @see #getOwnedWindows
263 */
264 transient Vector<WeakReference<Window>> ownedWindowList =
265 new Vector<WeakReference<Window>>();
266
267 /*
268 * We insert a weak reference into the Vector of all Windows in AppContext
269 * instead of 'this' so that garbage collection can still take place
270 * correctly.
271 */
272 private transient WeakReference<Window> weakThis;
273
274 transient boolean showWithParent;
275
276 /**
277 * Contains the modal dialog that blocks this window, or null
278 * if the window is unblocked.
279 *
280 * @since 1.6
281 */
282 transient Dialog modalBlocker;
283
284 /**
285 * @serial
286 *
287 * @see java.awt.Dialog.ModalExclusionType
288 * @see #getModalExclusionType
289 * @see #setModalExclusionType
290 *
291 * @since 1.6
292 */
293 Dialog.ModalExclusionType modalExclusionType;
294
295 transient WindowListener windowListener;
296 transient WindowStateListener windowStateListener;
297 transient WindowFocusListener windowFocusListener;
298
299 transient InputContext inputContext;
300 private transient Object inputContextLock = new Object();
301
302 /**
303 * Unused. Maintained for serialization backward-compatibility.
304 *
305 * @serial
306 * @since 1.2
307 */
308 private FocusManager focusMgr;
309
310 /**
311 * Indicates whether this Window can become the focused Window.
312 *
313 * @serial
314 * @see #getFocusableWindowState
315 * @see #setFocusableWindowState
316 * @since 1.4
317 */
318 private boolean focusableWindowState = true;
319
320 /**
321 * Indicates whether this window should receive focus on
322 * subsequently being shown (with a call to {@code setVisible(true)}), or
323 * being moved to the front (with a call to {@code toFront()}).
324 *
325 * @serial
326 * @see #setAutoRequestFocus
327 * @see #isAutoRequestFocus
328 * @since 1.7
329 */
330 private volatile boolean autoRequestFocus = true;
331
332 /*
333 * Indicates that this window is being shown. This flag is set to true at
334 * the beginning of show() and to false at the end of show().
335 *
336 * @see #show()
337 * @see Dialog#shouldBlock
338 */
339 transient boolean isInShow = false;
340
341 /**
342 * The opacity level of the window
343 *
344 * @serial
345 * @see #setOpacity(float)
346 * @see #getOpacity()
347 * @since 1.7
348 */
349 private float opacity = 1.0f;
350
351 /**
352 * The shape assigned to this window. This field is set to {@code null} if
353 * no shape is set (rectangular window).
354 *
355 * @serial
356 * @see #getShape()
357 * @see #setShape(Shape)
358 * @since 1.7
359 */
360 private Shape shape = null;
361
362 private static final String base = "win";
363 private static int nameCounter = 0;
364
365 /*
366 * JDK 1.1 serialVersionUID
367 */
368 private static final long serialVersionUID = 4497834738069338734L;
369
370 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window");
371
372 private static final boolean locationByPlatformProp;
373
374 transient boolean isTrayIconWindow = false;
375
376 /**
377 * These fields are initialized in the native peer code
378 * or via AWTAccessor's WindowAccessor.
379 */
380 private transient volatile int securityWarningWidth = 0;
381 private transient volatile int securityWarningHeight = 0;
382
383 /**
384 * These fields represent the desired location for the security
385 * warning if this window is untrusted.
386 * See com.sun.awt.SecurityWarning for more details.
387 */
388 private transient double securityWarningPointX = 2.0;
389 private transient double securityWarningPointY = 0.0;
390 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT;
391 private transient float securityWarningAlignmentY = TOP_ALIGNMENT;
392
393 static {
394 /* ensure that the necessary native libraries are loaded */
395 Toolkit.loadLibraries();
396 if (!GraphicsEnvironment.isHeadless()) {
397 initIDs();
398 }
399
400 String s = java.security.AccessController.doPrivileged(
401 new GetPropertyAction("java.awt.syncLWRequests"));
402 systemSyncLWRequests = (s != null && s.equals("true"));
403 s = java.security.AccessController.doPrivileged(
404 new GetPropertyAction("java.awt.Window.locationByPlatform"));
405 locationByPlatformProp = (s != null && s.equals("true"));
406 }
407
408 /**
409 * Initialize JNI field and method IDs for fields that may be
410 accessed from C.
411 */
412 private static native void initIDs();
413
414 /**
415 * Constructs a new, initially invisible window in default size with the
416 * specified {@code GraphicsConfiguration}.
417 * <p>
418 * If there is a security manager, then it is invoked to check
419 * {@code AWTPermission("showWindowWithoutWarningBanner")}
420 * to determine whether or not the window must be displayed with
421 * a warning banner.
422 *
423 * @param gc the {@code GraphicsConfiguration} of the target screen
424 * device. If {@code gc} is {@code null}, the system default
425 * {@code GraphicsConfiguration} is assumed
426 * @exception IllegalArgumentException if {@code gc}
427 * is not from a screen device
428 * @exception HeadlessException when
429 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
430 *
431 * @see java.awt.GraphicsEnvironment#isHeadless
432 */
433 Window(GraphicsConfiguration gc) {
434 init(gc);
435 }
436
437 transient Object anchor = new Object();
438 static class WindowDisposerRecord implements sun.java2d.DisposerRecord {
439 WeakReference<Window> owner;
440 final WeakReference<Window> weakThis;
441 final WeakReference<AppContext> context;
442
443 WindowDisposerRecord(AppContext context, Window victim) {
444 weakThis = victim.weakThis;
445 this.context = new WeakReference<AppContext>(context);
446 }
447
448 public void updateOwner() {
449 Window victim = weakThis.get();
450 owner = (victim == null)
451 ? null
452 : new WeakReference<Window>(victim.getOwner());
453 }
454
455 public void dispose() {
456 if (owner != null) {
457 Window parent = owner.get();
458 if (parent != null) {
459 parent.removeOwnedWindow(weakThis);
460 }
461 }
462 AppContext ac = context.get();
463 if (null != ac) {
464 Window.removeFromWindowList(ac, weakThis);
465 }
466 }
467 }
468
469 private GraphicsConfiguration initGC(GraphicsConfiguration gc) {
470 GraphicsEnvironment.checkHeadless();
471
472 if (gc == null) {
473 gc = GraphicsEnvironment.getLocalGraphicsEnvironment().
474 getDefaultScreenDevice().getDefaultConfiguration();
475 }
476 setGraphicsConfiguration(gc);
477
478 return gc;
479 }
480
481 private void init(GraphicsConfiguration gc) {
482 GraphicsEnvironment.checkHeadless();
483
484 syncLWRequests = systemSyncLWRequests;
485
486 weakThis = new WeakReference<Window>(this);
487 addToWindowList();
488
489 setWarningString();
490 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
491 this.visible = false;
492
493 gc = initGC(gc);
494
495 if (gc.getDevice().getType() !=
496 GraphicsDevice.TYPE_RASTER_SCREEN) {
497 throw new IllegalArgumentException("not a screen device");
498 }
499 setLayout(new BorderLayout());
500
501 /* offset the initial location with the original of the screen */
502 /* and any insets */
503 Rectangle screenBounds = gc.getBounds();
504 Insets screenInsets = getToolkit().getScreenInsets(gc);
505 int x = getX() + screenBounds.x + screenInsets.left;
506 int y = getY() + screenBounds.y + screenInsets.top;
507 if (x != this.x || y != this.y) {
508 setLocation(x, y);
509 /* reset after setLocation */
510 setLocationByPlatform(locationByPlatformProp);
511 }
512
513 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
514 disposerRecord = new WindowDisposerRecord(appContext, this);
515 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
516
517 SunToolkit.checkAndSetPolicy(this);
518 }
519
520 /**
521 * Constructs a new, initially invisible window in the default size.
522 * <p>
523 * If there is a security manager set, it is invoked to check
524 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
525 * If that check fails with a {@code SecurityException} then a warning
526 * banner is created.
527 *
528 * @exception HeadlessException when
529 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
530 *
531 * @see java.awt.GraphicsEnvironment#isHeadless
532 */
533 Window() throws HeadlessException {
534 GraphicsEnvironment.checkHeadless();
535 init((GraphicsConfiguration)null);
536 }
537
538 /**
539 * Constructs a new, initially invisible window with the specified
540 * {@code Frame} as its owner. The window will not be focusable
541 * unless its owner is showing on the screen.
542 * <p>
543 * If there is a security manager set, it is invoked to check
544 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
545 * If that check fails with a {@code SecurityException} then a warning
546 * banner is created.
547 *
548 * @param owner the {@code Frame} to act as owner or {@code null}
549 * if this window has no owner
550 * @exception IllegalArgumentException if the {@code owner}'s
551 * {@code GraphicsConfiguration} is not from a screen device
552 * @exception HeadlessException when
553 * {@code GraphicsEnvironment.isHeadless} returns {@code true}
554 *
555 * @see java.awt.GraphicsEnvironment#isHeadless
556 * @see #isShowing
557 */
558 public Window(Frame owner) {
559 this(owner == null ? (GraphicsConfiguration)null :
560 owner.getGraphicsConfiguration());
561 ownedInit(owner);
562 }
563
564 /**
565 * Constructs a new, initially invisible window with the specified
566 * {@code Window} as its owner. This window will not be focusable
567 * unless its nearest owning {@code Frame} or {@code Dialog}
568 * is showing on the screen.
569 * <p>
570 * If there is a security manager set, it is invoked to check
571 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
572 * If that check fails with a {@code SecurityException} then a
573 * warning banner is created.
574 *
575 * @param owner the {@code Window} to act as owner or
576 * {@code null} if this window has no owner
577 * @exception IllegalArgumentException if the {@code owner}'s
578 * {@code GraphicsConfiguration} is not from a screen device
579 * @exception HeadlessException when
580 * {@code GraphicsEnvironment.isHeadless()} returns
581 * {@code true}
582 *
583 * @see java.awt.GraphicsEnvironment#isHeadless
584 * @see #isShowing
585 *
586 * @since 1.2
587 */
588 public Window(Window owner) {
589 this(owner == null ? (GraphicsConfiguration)null :
590 owner.getGraphicsConfiguration());
591 ownedInit(owner);
592 }
593
594 /**
595 * Constructs a new, initially invisible window with the specified owner
596 * {@code Window} and a {@code GraphicsConfiguration}
597 * of a screen device. The Window will not be focusable unless
598 * its nearest owning {@code Frame} or {@code Dialog}
599 * is showing on the screen.
600 * <p>
601 * If there is a security manager set, it is invoked to check
602 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that
603 * check fails with a {@code SecurityException} then a warning banner
604 * is created.
605 *
606 * @param owner the window to act as owner or {@code null}
607 * if this window has no owner
608 * @param gc the {@code GraphicsConfiguration} of the target
609 * screen device; if {@code gc} is {@code null},
610 * the system default {@code GraphicsConfiguration} is assumed
611 * @exception IllegalArgumentException if {@code gc}
612 * is not from a screen device
613 * @exception HeadlessException when
614 * {@code GraphicsEnvironment.isHeadless()} returns
615 * {@code true}
616 *
617 * @see java.awt.GraphicsEnvironment#isHeadless
618 * @see GraphicsConfiguration#getBounds
619 * @see #isShowing
620 * @since 1.3
621 */
622 public Window(Window owner, GraphicsConfiguration gc) {
623 this(gc);
624 ownedInit(owner);
625 }
626
627 private void ownedInit(Window owner) {
628 this.parent = owner;
629 if (owner != null) {
630 owner.addOwnedWindow(weakThis);
631 if (owner.isAlwaysOnTop()) {
632 try {
633 setAlwaysOnTop(true);
634 } catch (SecurityException ignore) {
635 }
636 }
637 }
638
639 // WindowDisposerRecord requires a proper value of parent field.
640 disposerRecord.updateOwner();
641 }
642
643 /**
644 * Construct a name for this component. Called by getName() when the
645 * name is null.
646 */
647 String constructComponentName() {
648 synchronized (Window.class) {
649 return base + nameCounter++;
650 }
651 }
652
653 /**
654 * Returns the sequence of images to be displayed as the icon for this window.
655 * <p>
656 * This method returns a copy of the internally stored list, so all operations
657 * on the returned object will not affect the window's behavior.
658 *
659 * @return the copy of icon images' list for this window, or
660 * empty list if this window doesn't have icon images.
661 * @see #setIconImages
662 * @see #setIconImage(Image)
663 * @since 1.6
664 */
665 public java.util.List<Image> getIconImages() {
666 java.util.List<Image> icons = this.icons;
667 if (icons == null || icons.size() == 0) {
668 return new ArrayList<Image>();
669 }
670 return new ArrayList<Image>(icons);
671 }
672
673 /**
674 * Sets the sequence of images to be displayed as the icon
675 * for this window. Subsequent calls to {@code getIconImages} will
676 * always return a copy of the {@code icons} list.
677 * <p>
678 * Depending on the platform capabilities one or several images
679 * of different dimensions will be used as the window's icon.
680 * <p>
681 * The {@code icons} list is scanned for the images of most
682 * appropriate dimensions from the beginning. If the list contains
683 * several images of the same size, the first will be used.
684 * <p>
685 * Ownerless windows with no icon specified use platform-default icon.
686 * The icon of an owned window may be inherited from the owner
687 * unless explicitly overridden.
688 * Setting the icon to {@code null} or empty list restores
689 * the default behavior.
690 * <p>
691 * Note : Native windowing systems may use different images of differing
692 * dimensions to represent a window, depending on the context (e.g.
693 * window decoration, window list, taskbar, etc.). They could also use
694 * just a single image for all contexts or no image at all.
695 *
696 * @param icons the list of icon images to be displayed.
697 * @see #getIconImages()
698 * @see #setIconImage(Image)
699 * @since 1.6
700 */
701 public synchronized void setIconImages(java.util.List<? extends Image> icons) {
702 this.icons = (icons == null) ? new ArrayList<Image>() :
703 new ArrayList<Image>(icons);
704 WindowPeer peer = (WindowPeer)this.peer;
705 if (peer != null) {
706 peer.updateIconImages();
707 }
708 // Always send a property change event
709 firePropertyChange("iconImage", null, null);
710 }
711
712 /**
713 * Sets the image to be displayed as the icon for this window.
714 * <p>
715 * This method can be used instead of {@link #setIconImages setIconImages()}
716 * to specify a single image as a window's icon.
717 * <p>
718 * The following statement:
719 * <pre>
720 * setIconImage(image);
721 * </pre>
722 * is equivalent to:
723 * <pre>
724 * ArrayList<Image> imageList = new ArrayList<Image>();
725 * imageList.add(image);
726 * setIconImages(imageList);
727 * </pre>
728 * <p>
729 * Note : Native windowing systems may use different images of differing
730 * dimensions to represent a window, depending on the context (e.g.
731 * window decoration, window list, taskbar, etc.). They could also use
732 * just a single image for all contexts or no image at all.
733 *
734 * @param image the icon image to be displayed.
735 * @see #setIconImages
736 * @see #getIconImages()
737 * @since 1.6
738 */
739 public void setIconImage(Image image) {
740 ArrayList<Image> imageList = new ArrayList<Image>();
741 if (image != null) {
742 imageList.add(image);
743 }
744 setIconImages(imageList);
745 }
746
747 /**
748 * Makes this Window displayable by creating the connection to its
749 * native screen resource.
750 * This method is called internally by the toolkit and should
751 * not be called directly by programs.
752 * @see Component#isDisplayable
753 * @see Container#removeNotify
754 * @since 1.0
755 */
756 public void addNotify() {
757 synchronized (getTreeLock()) {
758 Container parent = this.parent;
759 if (parent != null && parent.peer == null) {
760 parent.addNotify();
761 }
762 if (peer == null) {
763 peer = getComponentFactory().createWindow(this);
764 }
765 synchronized (allWindows) {
766 allWindows.add(this);
767 }
768 super.addNotify();
769 }
770 }
771
772 /**
773 * {@inheritDoc}
774 */
775 public void removeNotify() {
776 synchronized (getTreeLock()) {
777 synchronized (allWindows) {
778 allWindows.remove(this);
779 }
780 super.removeNotify();
781 }
782 }
783
784 /**
785 * Causes this Window to be sized to fit the preferred size
786 * and layouts of its subcomponents. The resulting width and
787 * height of the window are automatically enlarged if either
788 * of dimensions is less than the minimum size as specified
789 * by the previous call to the {@code setMinimumSize} method.
790 * <p>
791 * If the window and/or its owner are not displayable yet,
792 * both of them are made displayable before calculating
793 * the preferred size. The Window is validated after its
794 * size is being calculated.
795 *
796 * @see Component#isDisplayable
797 * @see #setMinimumSize
798 */
799 @SuppressWarnings("deprecation")
800 public void pack() {
801 Container parent = this.parent;
802 if (parent != null && parent.peer == null) {
803 parent.addNotify();
804 }
805 if (peer == null) {
806 addNotify();
807 }
808 Dimension newSize = getPreferredSize();
809 if (peer != null) {
810 setClientSize(newSize.width, newSize.height);
811 }
812
813 if(beforeFirstShow) {
814 isPacked = true;
815 }
816
817 validateUnconditionally();
818 }
819
820 /**
821 * Sets the minimum size of this window to a constant
822 * value. Subsequent calls to {@code getMinimumSize}
823 * will always return this value. If current window's
824 * size is less than {@code minimumSize} the size of the
825 * window is automatically enlarged to honor the minimum size.
826 * <p>
827 * If the {@code setSize} or {@code setBounds} methods
828 * are called afterwards with a width or height less than
829 * that was specified by the {@code setMinimumSize} method
830 * the window is automatically enlarged to meet
831 * the {@code minimumSize} value. The {@code minimumSize}
832 * value also affects the behaviour of the {@code pack} method.
833 * <p>
834 * The default behavior is restored by setting the minimum size
835 * parameter to the {@code null} value.
836 * <p>
837 * Resizing operation may be restricted if the user tries
838 * to resize window below the {@code minimumSize} value.
839 * This behaviour is platform-dependent.
840 *
841 * @param minimumSize the new minimum size of this window
842 * @see Component#setMinimumSize
843 * @see #getMinimumSize
844 * @see #isMinimumSizeSet
845 * @see #setSize(Dimension)
846 * @see #pack
847 * @since 1.6
848 */
849 public void setMinimumSize(Dimension minimumSize) {
850 synchronized (getTreeLock()) {
851 super.setMinimumSize(minimumSize);
852 Dimension size = getSize();
853 if (isMinimumSizeSet()) {
854 if (size.width < minimumSize.width || size.height < minimumSize.height) {
855 int nw = Math.max(width, minimumSize.width);
856 int nh = Math.max(height, minimumSize.height);
857 setSize(nw, nh);
858 }
859 }
860 if (peer != null) {
861 ((WindowPeer)peer).updateMinimumSize();
862 }
863 }
864 }
865
866 /**
867 * {@inheritDoc}
868 * <p>
869 * The {@code d.width} and {@code d.height} values
870 * are automatically enlarged if either is less than
871 * the minimum size as specified by previous call to
872 * {@code setMinimumSize}.
873 * <p>
874 * The method changes the geometry-related data. Therefore,
875 * the native windowing system may ignore such requests, or it may modify
876 * the requested data, so that the {@code Window} object is placed and sized
877 * in a way that corresponds closely to the desktop settings.
878 *
879 * @see #getSize
880 * @see #setBounds
881 * @see #setMinimumSize
882 * @since 1.6
883 */
884 public void setSize(Dimension d) {
885 super.setSize(d);
886 }
887
888 /**
889 * {@inheritDoc}
890 * <p>
891 * The {@code width} and {@code height} values
892 * are automatically enlarged if either is less than
893 * the minimum size as specified by previous call to
894 * {@code setMinimumSize}.
895 * <p>
896 * The method changes the geometry-related data. Therefore,
897 * the native windowing system may ignore such requests, or it may modify
898 * the requested data, so that the {@code Window} object is placed and sized
899 * in a way that corresponds closely to the desktop settings.
900 *
901 * @see #getSize
902 * @see #setBounds
903 * @see #setMinimumSize
904 * @since 1.6
905 */
906 public void setSize(int width, int height) {
907 super.setSize(width, height);
908 }
909
910 /**
911 * {@inheritDoc}
912 * <p>
913 * The method changes the geometry-related data. Therefore,
914 * the native windowing system may ignore such requests, or it may modify
915 * the requested data, so that the {@code Window} object is placed and sized
916 * in a way that corresponds closely to the desktop settings.
917 */
918 @Override
919 public void setLocation(int x, int y) {
920 super.setLocation(x, y);
921 }
922
923 /**
924 * {@inheritDoc}
925 * <p>
926 * The method changes the geometry-related data. Therefore,
927 * the native windowing system may ignore such requests, or it may modify
928 * the requested data, so that the {@code Window} object is placed and sized
929 * in a way that corresponds closely to the desktop settings.
930 */
931 @Override
932 public void setLocation(Point p) {
933 super.setLocation(p);
934 }
935
936 /**
937 * @deprecated As of JDK version 1.1,
938 * replaced by {@code setBounds(int, int, int, int)}.
939 */
940 @Deprecated
941 public void reshape(int x, int y, int width, int height) {
942 if (isMinimumSizeSet()) {
943 Dimension minSize = getMinimumSize();
944 if (width < minSize.width) {
945 width = minSize.width;
946 }
947 if (height < minSize.height) {
948 height = minSize.height;
949 }
950 }
951 super.reshape(x, y, width, height);
952 }
953
954 void setClientSize(int w, int h) {
955 synchronized (getTreeLock()) {
956 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE);
957 setBounds(x, y, w, h);
958 }
959 }
960
961 static private final AtomicBoolean
962 beforeFirstWindowShown = new AtomicBoolean(true);
963
964 final void closeSplashScreen() {
965 if (isTrayIconWindow) {
966 return;
967 }
968 if (beforeFirstWindowShown.getAndSet(false)) {
969 // We don't use SplashScreen.getSplashScreen() to avoid instantiating
970 // the object if it hasn't been requested by user code explicitly
971 SunToolkit.closeSplashScreen();
972 SplashScreen.markClosed();
973 }
974 }
975
976 /**
977 * Shows or hides this {@code Window} depending on the value of parameter
978 * {@code b}.
979 * <p>
980 * If the method shows the window then the window is also made
981 * focused under the following conditions:
982 * <ul>
983 * <li> The {@code Window} meets the requirements outlined in the
984 * {@link #isFocusableWindow} method.
985 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value.
986 * <li> Native windowing system allows the {@code Window} to get focused.
987 * </ul>
988 * There is an exception for the second condition (the value of the
989 * {@code autoRequestFocus} property). The property is not taken into account if the
990 * window is a modal dialog, which blocks the currently focused window.
991 * <p>
992 * Developers must never assume that the window is the focused or active window
993 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event.
994 * @param b if {@code true}, makes the {@code Window} visible,
995 * otherwise hides the {@code Window}.
996 * If the {@code Window} and/or its owner
997 * are not yet displayable, both are made displayable. The
998 * {@code Window} will be validated prior to being made visible.
999 * If the {@code Window} is already visible, this will bring the
1000 * {@code Window} to the front.<p>
1001 * If {@code false}, hides this {@code Window}, its subcomponents, and all
1002 * of its owned children.
1003 * The {@code Window} and its subcomponents can be made visible again
1004 * with a call to {@code #setVisible(true)}.
1005 * @see java.awt.Component#isDisplayable
1006 * @see java.awt.Component#setVisible
1007 * @see java.awt.Window#toFront
1008 * @see java.awt.Window#dispose
1009 * @see java.awt.Window#setAutoRequestFocus
1010 * @see java.awt.Window#isFocusableWindow
1011 */
1012 public void setVisible(boolean b) {
1013 super.setVisible(b);
1014 }
1015
1016 /**
1017 * Makes the Window visible. If the Window and/or its owner
1018 * are not yet displayable, both are made displayable. The
1019 * Window will be validated prior to being made visible.
1020 * If the Window is already visible, this will bring the Window
1021 * to the front.
1022 * @see Component#isDisplayable
1023 * @see #toFront
1024 * @deprecated As of JDK version 1.5, replaced by
1025 * {@link #setVisible(boolean)}.
1026 */
1027 @Deprecated
1028 public void show() {
1029 if (peer == null) {
1030 addNotify();
1031 }
1032 validateUnconditionally();
1033
1034 isInShow = true;
1035 if (visible) {
1036 toFront();
1037 } else {
1038 beforeFirstShow = false;
1039 closeSplashScreen();
1040 Dialog.checkShouldBeBlocked(this);
1041 super.show();
1042 synchronized (getTreeLock()) {
1043 this.locationByPlatform = false;
1044 }
1045 for (int i = 0; i < ownedWindowList.size(); i++) {
1046 Window child = ownedWindowList.elementAt(i).get();
1047 if ((child != null) && child.showWithParent) {
1048 child.show();
1049 child.showWithParent = false;
1050 } // endif
1051 } // endfor
1052 if (!isModalBlocked()) {
1053 updateChildrenBlocking();
1054 } else {
1055 // fix for 6532736: after this window is shown, its blocker
1056 // should be raised to front
1057 modalBlocker.toFront_NoClientCode();
1058 }
1059 if (this instanceof Frame || this instanceof Dialog) {
1060 updateChildFocusableWindowState(this);
1061 }
1062 }
1063 isInShow = false;
1064
1065 // If first time shown, generate WindowOpened event
1066 if ((state & OPENED) == 0) {
1067 postWindowEvent(WindowEvent.WINDOW_OPENED);
1068 state |= OPENED;
1069 }
1070 }
1071
1072 static void updateChildFocusableWindowState(Window w) {
1073 if (w.peer != null && w.isShowing()) {
1074 ((WindowPeer)w.peer).updateFocusableWindowState();
1075 }
1076 for (int i = 0; i < w.ownedWindowList.size(); i++) {
1077 Window child = w.ownedWindowList.elementAt(i).get();
1078 if (child != null) {
1079 updateChildFocusableWindowState(child);
1080 }
1081 }
1082 }
1083
1084 synchronized void postWindowEvent(int id) {
1085 if (windowListener != null
1086 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0
1087 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) {
1088 WindowEvent e = new WindowEvent(this, id);
1089 Toolkit.getEventQueue().postEvent(e);
1090 }
1091 }
1092
1093 /**
1094 * Hide this Window, its subcomponents, and all of its owned children.
1095 * The Window and its subcomponents can be made visible again
1096 * with a call to {@code show}.
1097 * @see #show
1098 * @see #dispose
1099 * @deprecated As of JDK version 1.5, replaced by
1100 * {@link #setVisible(boolean)}.
1101 */
1102 @Deprecated
1103 public void hide() {
1104 synchronized(ownedWindowList) {
1105 for (int i = 0; i < ownedWindowList.size(); i++) {
1106 Window child = ownedWindowList.elementAt(i).get();
1107 if ((child != null) && child.visible) {
1108 child.hide();
1109 child.showWithParent = true;
1110 }
1111 }
1112 }
1113 if (isModalBlocked()) {
1114 modalBlocker.unblockWindow(this);
1115 }
1116 super.hide();
1117 synchronized (getTreeLock()) {
1118 this.locationByPlatform = false;
1119 }
1120 }
1121
1122 final void clearMostRecentFocusOwnerOnHide() {
1123 /* do nothing */
1124 }
1125
1126 /**
1127 * Releases all of the native screen resources used by this
1128 * {@code Window}, its subcomponents, and all of its owned
1129 * children. That is, the resources for these {@code Component}s
1130 * will be destroyed, any memory they consume will be returned to the
1131 * OS, and they will be marked as undisplayable.
1132 * <p>
1133 * The {@code Window} and its subcomponents can be made displayable
1134 * again by rebuilding the native resources with a subsequent call to
1135 * {@code pack} or {@code show}. The states of the recreated
1136 * {@code Window} and its subcomponents will be identical to the
1137 * states of these objects at the point where the {@code Window}
1138 * was disposed (not accounting for additional modifications between
1139 * those actions).
1140 * <p>
1141 * <b>Note</b>: When the last displayable window
1142 * within the Java virtual machine (VM) is disposed of, the VM may
1143 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown">
1144 * AWT Threading Issues</a> for more information.
1145 * @see Component#isDisplayable
1146 * @see #pack
1147 * @see #show
1148 */
1149 public void dispose() {
1150 doDispose();
1151 }
1152
1153 /*
1154 * Fix for 4872170.
1155 * If dispose() is called on parent then its children have to be disposed as well
1156 * as reported in javadoc. So we need to implement this functionality even if a
1157 * child overrides dispose() in a wrong way without calling super.dispose().
1158 */
1159 void disposeImpl() {
1160 dispose();
1161 if (peer != null) {
1162 doDispose();
1163 }
1164 }
1165
1166 void doDispose() {
1167 class DisposeAction implements Runnable {
1168 public void run() {
1169 disposing = true;
1170 try {
1171 // Check if this window is the fullscreen window for the
1172 // device. Exit the fullscreen mode prior to disposing
1173 // of the window if that's the case.
1174 GraphicsDevice gd = getGraphicsConfiguration().getDevice();
1175 if (gd.getFullScreenWindow() == Window.this) {
1176 gd.setFullScreenWindow(null);
1177 }
1178
1179 Object[] ownedWindowArray;
1180 synchronized(ownedWindowList) {
1181 ownedWindowArray = new Object[ownedWindowList.size()];
1182 ownedWindowList.copyInto(ownedWindowArray);
1183 }
1184 for (int i = 0; i < ownedWindowArray.length; i++) {
1185 Window child = (Window) (((WeakReference)
1186 (ownedWindowArray[i])).get());
1187 if (child != null) {
1188 child.disposeImpl();
1189 }
1190 }
1191 hide();
1192 beforeFirstShow = true;
1193 removeNotify();
1194 synchronized (inputContextLock) {
1195 if (inputContext != null) {
1196 inputContext.dispose();
1197 inputContext = null;
1198 }
1199 }
1200 clearCurrentFocusCycleRootOnHide();
1201 } finally {
1202 disposing = false;
1203 }
1204 }
1205 }
1206 boolean fireWindowClosedEvent = isDisplayable();
1207 DisposeAction action = new DisposeAction();
1208 if (EventQueue.isDispatchThread()) {
1209 action.run();
1210 }
1211 else {
1212 try {
1213 EventQueue.invokeAndWait(this, action);
1214 }
1215 catch (InterruptedException e) {
1216 System.err.println("Disposal was interrupted:");
1217 e.printStackTrace();
1218 }
1219 catch (InvocationTargetException e) {
1220 System.err.println("Exception during disposal:");
1221 e.printStackTrace();
1222 }
1223 }
1224 // Execute outside the Runnable because postWindowEvent is
1225 // synchronized on (this). We don't need to synchronize the call
1226 // on the EventQueue anyways.
1227 if (fireWindowClosedEvent) {
1228 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1229 }
1230 }
1231
1232 /*
1233 * Should only be called while holding the tree lock.
1234 * It's overridden here because parent == owner in Window,
1235 * and we shouldn't adjust counter on owner
1236 */
1237 void adjustListeningChildrenOnParent(long mask, int num) {
1238 }
1239
1240 // Should only be called while holding tree lock
1241 void adjustDescendantsOnParent(int num) {
1242 // do nothing since parent == owner and we shouldn't
1243 // adjust counter on owner
1244 }
1245
1246 /**
1247 * If this Window is visible, brings this Window to the front and may make
1248 * it the focused Window.
1249 * <p>
1250 * Places this Window at the top of the stacking order and shows it in
1251 * front of any other Windows in this VM. No action will take place if this
1252 * Window is not visible. Some platforms do not allow Windows which own
1253 * other Windows to appear on top of those owned Windows. Some platforms
1254 * may not permit this VM to place its Windows above windows of native
1255 * applications, or Windows of other VMs. This permission may depend on
1256 * whether a Window in this VM is already focused. Every attempt will be
1257 * made to move this Window as high as possible in the stacking order;
1258 * however, developers should not assume that this method will move this
1259 * Window above all other windows in every situation.
1260 * <p>
1261 * Developers must never assume that this Window is the focused or active
1262 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1263 * event. On platforms where the top-most window is the focused window, this
1264 * method will <b>probably</b> focus this Window (if it is not already focused)
1265 * under the following conditions:
1266 * <ul>
1267 * <li> The window meets the requirements outlined in the
1268 * {@link #isFocusableWindow} method.
1269 * <li> The window's property {@code autoRequestFocus} is of the
1270 * {@code true} value.
1271 * <li> Native windowing system allows the window to get focused.
1272 * </ul>
1273 * On platforms where the stacking order does not typically affect the focused
1274 * window, this method will <b>probably</b> leave the focused and active
1275 * Windows unchanged.
1276 * <p>
1277 * If this method causes this Window to be focused, and this Window is a
1278 * Frame or a Dialog, it will also become activated. If this Window is
1279 * focused, but it is not a Frame or a Dialog, then the first Frame or
1280 * Dialog that is an owner of this Window will be activated.
1281 * <p>
1282 * If this window is blocked by modal dialog, then the blocking dialog
1283 * is brought to the front and remains above the blocked window.
1284 *
1285 * @see #toBack
1286 * @see #setAutoRequestFocus
1287 * @see #isFocusableWindow
1288 */
1289 public void toFront() {
1290 toFront_NoClientCode();
1291 }
1292
1293 // This functionality is implemented in a final package-private method
1294 // to insure that it cannot be overridden by client subclasses.
1295 final void toFront_NoClientCode() {
1296 if (visible) {
1297 WindowPeer peer = (WindowPeer)this.peer;
1298 if (peer != null) {
1299 peer.toFront();
1300 }
1301 if (isModalBlocked()) {
1302 modalBlocker.toFront_NoClientCode();
1303 }
1304 }
1305 }
1306
1307 /**
1308 * If this Window is visible, sends this Window to the back and may cause
1309 * it to lose focus or activation if it is the focused or active Window.
1310 * <p>
1311 * Places this Window at the bottom of the stacking order and shows it
1312 * behind any other Windows in this VM. No action will take place is this
1313 * Window is not visible. Some platforms do not allow Windows which are
1314 * owned by other Windows to appear below their owners. Every attempt will
1315 * be made to move this Window as low as possible in the stacking order;
1316 * however, developers should not assume that this method will move this
1317 * Window below all other windows in every situation.
1318 * <p>
1319 * Because of variations in native windowing systems, no guarantees about
1320 * changes to the focused and active Windows can be made. Developers must
1321 * never assume that this Window is no longer the focused or active Window
1322 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1323 * event. On platforms where the top-most window is the focused window,
1324 * this method will <b>probably</b> cause this Window to lose focus. In
1325 * that case, the next highest, focusable Window in this VM will receive
1326 * focus. On platforms where the stacking order does not typically affect
1327 * the focused window, this method will <b>probably</b> leave the focused
1328 * and active Windows unchanged.
1329 *
1330 * @see #toFront
1331 */
1332 public void toBack() {
1333 toBack_NoClientCode();
1334 }
1335
1336 // This functionality is implemented in a final package-private method
1337 // to insure that it cannot be overridden by client subclasses.
1338 final void toBack_NoClientCode() {
1339 if(isAlwaysOnTop()) {
1340 try {
1341 setAlwaysOnTop(false);
1342 }catch(SecurityException e) {
1343 }
1344 }
1345 if (visible) {
1346 WindowPeer peer = (WindowPeer)this.peer;
1347 if (peer != null) {
1348 peer.toBack();
1349 }
1350 }
1351 }
1352
1353 /**
1354 * Returns the toolkit of this frame.
1355 * @return the toolkit of this window.
1356 * @see Toolkit
1357 * @see Toolkit#getDefaultToolkit
1358 * @see Component#getToolkit
1359 */
1360 public Toolkit getToolkit() {
1361 return Toolkit.getDefaultToolkit();
1362 }
1363
1364 /**
1365 * Gets the warning string that is displayed with this window.
1366 * If this window is insecure, the warning string is displayed
1367 * somewhere in the visible area of the window. A window is
1368 * insecure if there is a security manager and the security
1369 * manager denies
1370 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
1371 * <p>
1372 * If the window is secure, then {@code getWarningString}
1373 * returns {@code null}. If the window is insecure, this
1374 * method checks for the system property
1375 * {@code awt.appletWarning}
1376 * and returns the string value of that property.
1377 * @return the warning string for this window.
1378 */
1379 public final String getWarningString() {
1380 return warningString;
1381 }
1382
1383 private void setWarningString() {
1384 warningString = null;
1385 SecurityManager sm = System.getSecurityManager();
1386 if (sm != null) {
1387 try {
1388 sm.checkPermission(AWTPermissions.TOPLEVEL_WINDOW_PERMISSION);
1389 } catch (SecurityException se) {
1390 // make sure the privileged action is only
1391 // for getting the property! We don't want the
1392 // above checkPermission call to always succeed!
1393 warningString = AccessController.doPrivileged(
1394 new GetPropertyAction("awt.appletWarning",
1395 "Java Applet Window"));
1396 }
1397 }
1398 }
1399
1400 /**
1401 * Gets the {@code Locale} object that is associated
1402 * with this window, if the locale has been set.
1403 * If no locale has been set, then the default locale
1404 * is returned.
1405 * @return the locale that is set for this window.
1406 * @see java.util.Locale
1407 * @since 1.1
1408 */
1409 public Locale getLocale() {
1410 if (this.locale == null) {
1411 return Locale.getDefault();
1412 }
1413 return this.locale;
1414 }
1415
1416 /**
1417 * Gets the input context for this window. A window always has an input context,
1418 * which is shared by subcomponents unless they create and set their own.
1419 * @see Component#getInputContext
1420 * @since 1.2
1421 */
1422 public InputContext getInputContext() {
1423 synchronized (inputContextLock) {
1424 if (inputContext == null) {
1425 inputContext = InputContext.getInstance();
1426 }
1427 }
1428 return inputContext;
1429 }
1430
1431 /**
1432 * Set the cursor image to a specified cursor.
1433 * <p>
1434 * The method may have no visual effect if the Java platform
1435 * implementation and/or the native system do not support
1436 * changing the mouse cursor shape.
1437 * @param cursor One of the constants defined
1438 * by the {@code Cursor} class. If this parameter is null
1439 * then the cursor for this window will be set to the type
1440 * Cursor.DEFAULT_CURSOR.
1441 * @see Component#getCursor
1442 * @see Cursor
1443 * @since 1.1
1444 */
1445 public void setCursor(Cursor cursor) {
1446 if (cursor == null) {
1447 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1448 }
1449 super.setCursor(cursor);
1450 }
1451
1452 /**
1453 * Returns the owner of this window.
1454 *
1455 * @return the owner of this window
1456 * @since 1.2
1457 */
1458 public Window getOwner() {
1459 return getOwner_NoClientCode();
1460 }
1461 final Window getOwner_NoClientCode() {
1462 return (Window)parent;
1463 }
1464
1465 /**
1466 * Return an array containing all the windows this
1467 * window currently owns.
1468 *
1469 * @return the array of all the owned windows
1470 * @since 1.2
1471 */
1472 public Window[] getOwnedWindows() {
1473 return getOwnedWindows_NoClientCode();
1474 }
1475 final Window[] getOwnedWindows_NoClientCode() {
1476 Window realCopy[];
1477
1478 synchronized(ownedWindowList) {
1479 // Recall that ownedWindowList is actually a Vector of
1480 // WeakReferences and calling get() on one of these references
1481 // may return null. Make two arrays-- one the size of the
1482 // Vector (fullCopy with size fullSize), and one the size of
1483 // all non-null get()s (realCopy with size realSize).
1484 int fullSize = ownedWindowList.size();
1485 int realSize = 0;
1486 Window fullCopy[] = new Window[fullSize];
1487
1488 for (int i = 0; i < fullSize; i++) {
1489 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1490
1491 if (fullCopy[realSize] != null) {
1492 realSize++;
1493 }
1494 }
1495
1496 if (fullSize != realSize) {
1497 realCopy = Arrays.copyOf(fullCopy, realSize);
1498 } else {
1499 realCopy = fullCopy;
1500 }
1501 }
1502
1503 return realCopy;
1504 }
1505
1506 boolean isModalBlocked() {
1507 return modalBlocker != null;
1508 }
1509
1510 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1511 this.modalBlocker = blocked ? blocker : null;
1512 if (peerCall) {
1513 WindowPeer peer = (WindowPeer)this.peer;
1514 if (peer != null) {
1515 peer.setModalBlocked(blocker, blocked);
1516 }
1517 }
1518 }
1519
1520 Dialog getModalBlocker() {
1521 return modalBlocker;
1522 }
1523
1524 /*
1525 * Returns a list of all displayable Windows, i. e. all the
1526 * Windows which peer is not null.
1527 *
1528 * @see #addNotify
1529 * @see #removeNotify
1530 */
1531 static IdentityArrayList<Window> getAllWindows() {
1532 synchronized (allWindows) {
1533 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1534 v.addAll(allWindows);
1535 return v;
1536 }
1537 }
1538
1539 static IdentityArrayList<Window> getAllUnblockedWindows() {
1540 synchronized (allWindows) {
1541 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1542 for (int i = 0; i < allWindows.size(); i++) {
1543 Window w = allWindows.get(i);
1544 if (!w.isModalBlocked()) {
1545 unblocked.add(w);
1546 }
1547 }
1548 return unblocked;
1549 }
1550 }
1551
1552 private static Window[] getWindows(AppContext appContext) {
1553 synchronized (Window.class) {
1554 Window realCopy[];
1555 @SuppressWarnings("unchecked")
1556 Vector<WeakReference<Window>> windowList =
1557 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1558 if (windowList != null) {
1559 int fullSize = windowList.size();
1560 int realSize = 0;
1561 Window fullCopy[] = new Window[fullSize];
1562 for (int i = 0; i < fullSize; i++) {
1563 Window w = windowList.get(i).get();
1564 if (w != null) {
1565 fullCopy[realSize++] = w;
1566 }
1567 }
1568 if (fullSize != realSize) {
1569 realCopy = Arrays.copyOf(fullCopy, realSize);
1570 } else {
1571 realCopy = fullCopy;
1572 }
1573 } else {
1574 realCopy = new Window[0];
1575 }
1576 return realCopy;
1577 }
1578 }
1579
1580 /**
1581 * Returns an array of all {@code Window}s, both owned and ownerless,
1582 * created by this application.
1583 * If called from an applet, the array includes only the {@code Window}s
1584 * accessible by that applet.
1585 * <p>
1586 * <b>Warning:</b> this method may return system created windows, such
1587 * as a print dialog. Applications should not assume the existence of
1588 * these dialogs, nor should an application assume anything about these
1589 * dialogs such as component positions, {@code LayoutManager}s
1590 * or serialization.
1591 *
1592 * @return the array of all the {@code Window}s created by the application
1593 * @see Frame#getFrames
1594 * @see Window#getOwnerlessWindows
1595 *
1596 * @since 1.6
1597 */
1598 public static Window[] getWindows() {
1599 return getWindows(AppContext.getAppContext());
1600 }
1601
1602 /**
1603 * Returns an array of all {@code Window}s created by this application
1604 * that have no owner. They include {@code Frame}s and ownerless
1605 * {@code Dialog}s and {@code Window}s.
1606 * If called from an applet, the array includes only the {@code Window}s
1607 * accessible by that applet.
1608 * <p>
1609 * <b>Warning:</b> this method may return system created windows, such
1610 * as a print dialog. Applications should not assume the existence of
1611 * these dialogs, nor should an application assume anything about these
1612 * dialogs such as component positions, {@code LayoutManager}s
1613 * or serialization.
1614 *
1615 * @return the array of all the ownerless {@code Window}s
1616 * created by this application
1617 * @see Frame#getFrames
1618 * @see Window#getWindows()
1619 *
1620 * @since 1.6
1621 */
1622 public static Window[] getOwnerlessWindows() {
1623 Window[] allWindows = Window.getWindows();
1624
1625 int ownerlessCount = 0;
1626 for (Window w : allWindows) {
1627 if (w.getOwner() == null) {
1628 ownerlessCount++;
1629 }
1630 }
1631
1632 Window[] ownerless = new Window[ownerlessCount];
1633 int c = 0;
1634 for (Window w : allWindows) {
1635 if (w.getOwner() == null) {
1636 ownerless[c++] = w;
1637 }
1638 }
1639
1640 return ownerless;
1641 }
1642
1643 Window getDocumentRoot() {
1644 synchronized (getTreeLock()) {
1645 Window w = this;
1646 while (w.getOwner() != null) {
1647 w = w.getOwner();
1648 }
1649 return w;
1650 }
1651 }
1652
1653 /**
1654 * Specifies the modal exclusion type for this window. If a window is modal
1655 * excluded, it is not blocked by some modal dialogs. See {@link
1656 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1657 * possible modal exclusion types.
1658 * <p>
1659 * If the given type is not supported, {@code NO_EXCLUDE} is used.
1660 * <p>
1661 * Note: changing the modal exclusion type for a visible window may have no
1662 * effect until it is hidden and then shown again.
1663 *
1664 * @param exclusionType the modal exclusion type for this window; a {@code null}
1665 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1666 * NO_EXCLUDE}
1667 * @throws SecurityException if the calling thread does not have permission
1668 * to set the modal exclusion property to the window with the given
1669 * {@code exclusionType}
1670 * @see java.awt.Dialog.ModalExclusionType
1671 * @see java.awt.Window#getModalExclusionType
1672 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1673 *
1674 * @since 1.6
1675 */
1676 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1677 if (exclusionType == null) {
1678 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1679 }
1680 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1681 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1682 }
1683 if (modalExclusionType == exclusionType) {
1684 return;
1685 }
1686 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1687 SecurityManager sm = System.getSecurityManager();
1688 if (sm != null) {
1689 sm.checkPermission(AWTPermissions.TOOLKIT_MODALITY_PERMISSION);
1690 }
1691 }
1692 modalExclusionType = exclusionType;
1693
1694 // if we want on-fly changes, we need to uncomment the lines below
1695 // and override the method in Dialog to use modalShow() instead
1696 // of updateChildrenBlocking()
1697 /*
1698 if (isModalBlocked()) {
1699 modalBlocker.unblockWindow(this);
1700 }
1701 Dialog.checkShouldBeBlocked(this);
1702 updateChildrenBlocking();
1703 */
1704 }
1705
1706 /**
1707 * Returns the modal exclusion type of this window.
1708 *
1709 * @return the modal exclusion type of this window
1710 *
1711 * @see java.awt.Dialog.ModalExclusionType
1712 * @see java.awt.Window#setModalExclusionType
1713 *
1714 * @since 1.6
1715 */
1716 public Dialog.ModalExclusionType getModalExclusionType() {
1717 return modalExclusionType;
1718 }
1719
1720 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1721 if ((modalExclusionType != null) &&
1722 modalExclusionType.compareTo(exclusionType) >= 0)
1723 {
1724 return true;
1725 }
1726 Window owner = getOwner_NoClientCode();
1727 return (owner != null) && owner.isModalExcluded(exclusionType);
1728 }
1729
1730 void updateChildrenBlocking() {
1731 Vector<Window> childHierarchy = new Vector<Window>();
1732 Window[] ownedWindows = getOwnedWindows();
1733 for (int i = 0; i < ownedWindows.length; i++) {
1734 childHierarchy.add(ownedWindows[i]);
1735 }
1736 int k = 0;
1737 while (k < childHierarchy.size()) {
1738 Window w = childHierarchy.get(k);
1739 if (w.isVisible()) {
1740 if (w.isModalBlocked()) {
1741 Dialog blocker = w.getModalBlocker();
1742 blocker.unblockWindow(w);
1743 }
1744 Dialog.checkShouldBeBlocked(w);
1745 Window[] wOwned = w.getOwnedWindows();
1746 for (int j = 0; j < wOwned.length; j++) {
1747 childHierarchy.add(wOwned[j]);
1748 }
1749 }
1750 k++;
1751 }
1752 }
1753
1754 /**
1755 * Adds the specified window listener to receive window events from
1756 * this window.
1757 * If l is null, no exception is thrown and no action is performed.
1758 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1759 * >AWT Threading Issues</a> for details on AWT's threading model.
1760 *
1761 * @param l the window listener
1762 * @see #removeWindowListener
1763 * @see #getWindowListeners
1764 */
1765 public synchronized void addWindowListener(WindowListener l) {
1766 if (l == null) {
1767 return;
1768 }
1769 newEventsOnly = true;
1770 windowListener = AWTEventMulticaster.add(windowListener, l);
1771 }
1772
1773 /**
1774 * Adds the specified window state listener to receive window
1775 * events from this window. If {@code l} is {@code null},
1776 * no exception is thrown and no action is performed.
1777 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1778 * >AWT Threading Issues</a> for details on AWT's threading model.
1779 *
1780 * @param l the window state listener
1781 * @see #removeWindowStateListener
1782 * @see #getWindowStateListeners
1783 * @since 1.4
1784 */
1785 public synchronized void addWindowStateListener(WindowStateListener l) {
1786 if (l == null) {
1787 return;
1788 }
1789 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1790 newEventsOnly = true;
1791 }
1792
1793 /**
1794 * Adds the specified window focus listener to receive window events
1795 * from this window.
1796 * If l is null, no exception is thrown and no action is performed.
1797 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1798 * >AWT Threading Issues</a> for details on AWT's threading model.
1799 *
1800 * @param l the window focus listener
1801 * @see #removeWindowFocusListener
1802 * @see #getWindowFocusListeners
1803 * @since 1.4
1804 */
1805 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1806 if (l == null) {
1807 return;
1808 }
1809 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1810 newEventsOnly = true;
1811 }
1812
1813 /**
1814 * Removes the specified window listener so that it no longer
1815 * receives window events from this window.
1816 * If l is null, no exception is thrown and no action is performed.
1817 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1818 * >AWT Threading Issues</a> for details on AWT's threading model.
1819 *
1820 * @param l the window listener
1821 * @see #addWindowListener
1822 * @see #getWindowListeners
1823 */
1824 public synchronized void removeWindowListener(WindowListener l) {
1825 if (l == null) {
1826 return;
1827 }
1828 windowListener = AWTEventMulticaster.remove(windowListener, l);
1829 }
1830
1831 /**
1832 * Removes the specified window state listener so that it no
1833 * longer receives window events from this window. If
1834 * {@code l} is {@code null}, no exception is thrown and
1835 * no action is performed.
1836 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1837 * >AWT Threading Issues</a> for details on AWT's threading model.
1838 *
1839 * @param l the window state listener
1840 * @see #addWindowStateListener
1841 * @see #getWindowStateListeners
1842 * @since 1.4
1843 */
1844 public synchronized void removeWindowStateListener(WindowStateListener l) {
1845 if (l == null) {
1846 return;
1847 }
1848 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1849 }
1850
1851 /**
1852 * Removes the specified window focus listener so that it no longer
1853 * receives window events from this window.
1854 * If l is null, no exception is thrown and no action is performed.
1855 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1856 * >AWT Threading Issues</a> for details on AWT's threading model.
1857 *
1858 * @param l the window focus listener
1859 * @see #addWindowFocusListener
1860 * @see #getWindowFocusListeners
1861 * @since 1.4
1862 */
1863 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1864 if (l == null) {
1865 return;
1866 }
1867 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1868 }
1869
1870 /**
1871 * Returns an array of all the window listeners
1872 * registered on this window.
1873 *
1874 * @return all of this window's {@code WindowListener}s
1875 * or an empty array if no window
1876 * listeners are currently registered
1877 *
1878 * @see #addWindowListener
1879 * @see #removeWindowListener
1880 * @since 1.4
1881 */
1882 public synchronized WindowListener[] getWindowListeners() {
1883 return getListeners(WindowListener.class);
1884 }
1885
1886 /**
1887 * Returns an array of all the window focus listeners
1888 * registered on this window.
1889 *
1890 * @return all of this window's {@code WindowFocusListener}s
1891 * or an empty array if no window focus
1892 * listeners are currently registered
1893 *
1894 * @see #addWindowFocusListener
1895 * @see #removeWindowFocusListener
1896 * @since 1.4
1897 */
1898 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1899 return getListeners(WindowFocusListener.class);
1900 }
1901
1902 /**
1903 * Returns an array of all the window state listeners
1904 * registered on this window.
1905 *
1906 * @return all of this window's {@code WindowStateListener}s
1907 * or an empty array if no window state
1908 * listeners are currently registered
1909 *
1910 * @see #addWindowStateListener
1911 * @see #removeWindowStateListener
1912 * @since 1.4
1913 */
1914 public synchronized WindowStateListener[] getWindowStateListeners() {
1915 return getListeners(WindowStateListener.class);
1916 }
1917
1918
1919 /**
1920 * Returns an array of all the objects currently registered
1921 * as <code><em>Foo</em>Listener</code>s
1922 * upon this {@code Window}.
1923 * <code><em>Foo</em>Listener</code>s are registered using the
1924 * <code>add<em>Foo</em>Listener</code> method.
1925 *
1926 * <p>
1927 *
1928 * You can specify the {@code listenerType} argument
1929 * with a class literal, such as
1930 * <code><em>Foo</em>Listener.class</code>.
1931 * For example, you can query a
1932 * {@code Window} {@code w}
1933 * for its window listeners with the following code:
1934 *
1935 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1936 *
1937 * If no such listeners exist, this method returns an empty array.
1938 *
1939 * @param listenerType the type of listeners requested; this parameter
1940 * should specify an interface that descends from
1941 * {@code java.util.EventListener}
1942 * @return an array of all objects registered as
1943 * <code><em>Foo</em>Listener</code>s on this window,
1944 * or an empty array if no such
1945 * listeners have been added
1946 * @exception ClassCastException if {@code listenerType}
1947 * doesn't specify a class or interface that implements
1948 * {@code java.util.EventListener}
1949 * @exception NullPointerException if {@code listenerType} is {@code null}
1950 *
1951 * @see #getWindowListeners
1952 * @since 1.3
1953 */
1954 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1955 EventListener l = null;
1956 if (listenerType == WindowFocusListener.class) {
1957 l = windowFocusListener;
1958 } else if (listenerType == WindowStateListener.class) {
1959 l = windowStateListener;
1960 } else if (listenerType == WindowListener.class) {
1961 l = windowListener;
1962 } else {
1963 return super.getListeners(listenerType);
1964 }
1965 return AWTEventMulticaster.getListeners(l, listenerType);
1966 }
1967
1968 // REMIND: remove when filtering is handled at lower level
1969 boolean eventEnabled(AWTEvent e) {
1970 switch(e.id) {
1971 case WindowEvent.WINDOW_OPENED:
1972 case WindowEvent.WINDOW_CLOSING:
1973 case WindowEvent.WINDOW_CLOSED:
1974 case WindowEvent.WINDOW_ICONIFIED:
1975 case WindowEvent.WINDOW_DEICONIFIED:
1976 case WindowEvent.WINDOW_ACTIVATED:
1977 case WindowEvent.WINDOW_DEACTIVATED:
1978 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1979 windowListener != null) {
1980 return true;
1981 }
1982 return false;
1983 case WindowEvent.WINDOW_GAINED_FOCUS:
1984 case WindowEvent.WINDOW_LOST_FOCUS:
1985 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
1986 windowFocusListener != null) {
1987 return true;
1988 }
1989 return false;
1990 case WindowEvent.WINDOW_STATE_CHANGED:
1991 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
1992 windowStateListener != null) {
1993 return true;
1994 }
1995 return false;
1996 default:
1997 break;
1998 }
1999 return super.eventEnabled(e);
2000 }
2001
2002 /**
2003 * Processes events on this window. If the event is an
2004 * {@code WindowEvent}, it invokes the
2005 * {@code processWindowEvent} method, else it invokes its
2006 * superclass's {@code processEvent}.
2007 * <p>Note that if the event parameter is {@code null}
2008 * the behavior is unspecified and may result in an
2009 * exception.
2010 *
2011 * @param e the event
2012 */
2013 protected void processEvent(AWTEvent e) {
2014 if (e instanceof WindowEvent) {
2015 switch (e.getID()) {
2016 case WindowEvent.WINDOW_OPENED:
2017 case WindowEvent.WINDOW_CLOSING:
2018 case WindowEvent.WINDOW_CLOSED:
2019 case WindowEvent.WINDOW_ICONIFIED:
2020 case WindowEvent.WINDOW_DEICONIFIED:
2021 case WindowEvent.WINDOW_ACTIVATED:
2022 case WindowEvent.WINDOW_DEACTIVATED:
2023 processWindowEvent((WindowEvent)e);
2024 break;
2025 case WindowEvent.WINDOW_GAINED_FOCUS:
2026 case WindowEvent.WINDOW_LOST_FOCUS:
2027 processWindowFocusEvent((WindowEvent)e);
2028 break;
2029 case WindowEvent.WINDOW_STATE_CHANGED:
2030 processWindowStateEvent((WindowEvent)e);
2031 break;
2032 }
2033 return;
2034 }
2035 super.processEvent(e);
2036 }
2037
2038 /**
2039 * Processes window events occurring on this window by
2040 * dispatching them to any registered WindowListener objects.
2041 * NOTE: This method will not be called unless window events
2042 * are enabled for this component; this happens when one of the
2043 * following occurs:
2044 * <ul>
2045 * <li>A WindowListener object is registered via
2046 * {@code addWindowListener}
2047 * <li>Window events are enabled via {@code enableEvents}
2048 * </ul>
2049 * <p>Note that if the event parameter is {@code null}
2050 * the behavior is unspecified and may result in an
2051 * exception.
2052 *
2053 * @param e the window event
2054 * @see Component#enableEvents
2055 */
2056 protected void processWindowEvent(WindowEvent e) {
2057 WindowListener listener = windowListener;
2058 if (listener != null) {
2059 switch(e.getID()) {
2060 case WindowEvent.WINDOW_OPENED:
2061 listener.windowOpened(e);
2062 break;
2063 case WindowEvent.WINDOW_CLOSING:
2064 listener.windowClosing(e);
2065 break;
2066 case WindowEvent.WINDOW_CLOSED:
2067 listener.windowClosed(e);
2068 break;
2069 case WindowEvent.WINDOW_ICONIFIED:
2070 listener.windowIconified(e);
2071 break;
2072 case WindowEvent.WINDOW_DEICONIFIED:
2073 listener.windowDeiconified(e);
2074 break;
2075 case WindowEvent.WINDOW_ACTIVATED:
2076 listener.windowActivated(e);
2077 break;
2078 case WindowEvent.WINDOW_DEACTIVATED:
2079 listener.windowDeactivated(e);
2080 break;
2081 default:
2082 break;
2083 }
2084 }
2085 }
2086
2087 /**
2088 * Processes window focus event occurring on this window by
2089 * dispatching them to any registered WindowFocusListener objects.
2090 * NOTE: this method will not be called unless window focus events
2091 * are enabled for this window. This happens when one of the
2092 * following occurs:
2093 * <ul>
2094 * <li>a WindowFocusListener is registered via
2095 * {@code addWindowFocusListener}
2096 * <li>Window focus events are enabled via {@code enableEvents}
2097 * </ul>
2098 * <p>Note that if the event parameter is {@code null}
2099 * the behavior is unspecified and may result in an
2100 * exception.
2101 *
2102 * @param e the window focus event
2103 * @see Component#enableEvents
2104 * @since 1.4
2105 */
2106 protected void processWindowFocusEvent(WindowEvent e) {
2107 WindowFocusListener listener = windowFocusListener;
2108 if (listener != null) {
2109 switch (e.getID()) {
2110 case WindowEvent.WINDOW_GAINED_FOCUS:
2111 listener.windowGainedFocus(e);
2112 break;
2113 case WindowEvent.WINDOW_LOST_FOCUS:
2114 listener.windowLostFocus(e);
2115 break;
2116 default:
2117 break;
2118 }
2119 }
2120 }
2121
2122 /**
2123 * Processes window state event occurring on this window by
2124 * dispatching them to any registered {@code WindowStateListener}
2125 * objects.
2126 * NOTE: this method will not be called unless window state events
2127 * are enabled for this window. This happens when one of the
2128 * following occurs:
2129 * <ul>
2130 * <li>a {@code WindowStateListener} is registered via
2131 * {@code addWindowStateListener}
2132 * <li>window state events are enabled via {@code enableEvents}
2133 * </ul>
2134 * <p>Note that if the event parameter is {@code null}
2135 * the behavior is unspecified and may result in an
2136 * exception.
2137 *
2138 * @param e the window state event
2139 * @see java.awt.Component#enableEvents
2140 * @since 1.4
2141 */
2142 protected void processWindowStateEvent(WindowEvent e) {
2143 WindowStateListener listener = windowStateListener;
2144 if (listener != null) {
2145 switch (e.getID()) {
2146 case WindowEvent.WINDOW_STATE_CHANGED:
2147 listener.windowStateChanged(e);
2148 break;
2149 default:
2150 break;
2151 }
2152 }
2153 }
2154
2155 /**
2156 * Implements a debugging hook -- checks to see if
2157 * the user has typed <i>control-shift-F1</i>. If so,
2158 * the list of child windows is dumped to {@code System.out}.
2159 * @param e the keyboard event
2160 */
2161 void preProcessKeyEvent(KeyEvent e) {
2162 // Dump the list of child windows to System.out.
2163 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2164 e.isControlDown() && e.isShiftDown() &&
2165 e.getID() == KeyEvent.KEY_PRESSED) {
2166 list(System.out, 0);
2167 }
2168 }
2169
2170 void postProcessKeyEvent(KeyEvent e) {
2171 // Do nothing
2172 }
2173
2174
2175 /**
2176 * Sets whether this window should always be above other windows. If
2177 * there are multiple always-on-top windows, their relative order is
2178 * unspecified and platform dependent.
2179 * <p>
2180 * If some other window is already always-on-top then the
2181 * relative order between these windows is unspecified (depends on
2182 * platform). No window can be brought to be over the always-on-top
2183 * window except maybe another always-on-top window.
2184 * <p>
2185 * All windows owned by an always-on-top window inherit this state and
2186 * automatically become always-on-top. If a window ceases to be
2187 * always-on-top, the windows that it owns will no longer be
2188 * always-on-top. When an always-on-top window is sent {@link #toBack
2189 * toBack}, its always-on-top state is set to {@code false}.
2190 *
2191 * <p> When this method is called on a window with a value of
2192 * {@code true}, and the window is visible and the platform
2193 * supports always-on-top for this window, the window is immediately
2194 * brought forward, "sticking" it in the top-most position. If the
2195 * window isn`t currently visible, this method sets the always-on-top
2196 * state to {@code true} but does not bring the window forward.
2197 * When the window is later shown, it will be always-on-top.
2198 *
2199 * <p> When this method is called on a window with a value of
2200 * {@code false} the always-on-top state is set to normal. It may also
2201 * cause an unspecified, platform-dependent change in the z-order of
2202 * top-level windows, but other always-on-top windows will remain in
2203 * top-most position. Calling this method with a value of {@code false}
2204 * on a window that has a normal state has no effect.
2205 *
2206 * <p><b>Note</b>: some platforms might not support always-on-top
2207 * windows. To detect if always-on-top windows are supported by the
2208 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2209 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2210 * isn't supported for this window or this window's toolkit does not
2211 * support always-on-top windows, calling this method has no effect.
2212 * <p>
2213 * If a SecurityManager is installed, the calling thread must be
2214 * granted the AWTPermission "setWindowAlwaysOnTop" in
2215 * order to set the value of this property. If this
2216 * permission is not granted, this method will throw a
2217 * SecurityException, and the current value of the property will
2218 * be left unchanged.
2219 *
2220 * @param alwaysOnTop true if the window should always be above other
2221 * windows
2222 * @throws SecurityException if the calling thread does not have
2223 * permission to set the value of always-on-top property
2224 *
2225 * @see #isAlwaysOnTop
2226 * @see #toFront
2227 * @see #toBack
2228 * @see AWTPermission
2229 * @see #isAlwaysOnTopSupported
2230 * @see #getToolkit
2231 * @see Toolkit#isAlwaysOnTopSupported
2232 * @since 1.5
2233 */
2234 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2235 SecurityManager security = System.getSecurityManager();
2236 if (security != null) {
2237 security.checkPermission(AWTPermissions.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2238 }
2239
2240 boolean oldAlwaysOnTop;
2241 synchronized(this) {
2242 oldAlwaysOnTop = this.alwaysOnTop;
2243 this.alwaysOnTop = alwaysOnTop;
2244 }
2245 if (oldAlwaysOnTop != alwaysOnTop ) {
2246 if (isAlwaysOnTopSupported()) {
2247 WindowPeer peer = (WindowPeer)this.peer;
2248 synchronized(getTreeLock()) {
2249 if (peer != null) {
2250 peer.updateAlwaysOnTopState();
2251 }
2252 }
2253 }
2254 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2255 }
2256 setOwnedWindowsAlwaysOnTop(alwaysOnTop);
2257 }
2258
2259 @SuppressWarnings({"rawtypes", "unchecked"})
2260 private void setOwnedWindowsAlwaysOnTop(boolean alwaysOnTop) {
2261 WeakReference<Window>[] ownedWindowArray;
2262 synchronized (ownedWindowList) {
2263 ownedWindowArray = new WeakReference[ownedWindowList.size()];
2264 ownedWindowList.copyInto(ownedWindowArray);
2265 }
2266
2267 for (WeakReference<Window> ref : ownedWindowArray) {
2268 Window window = ref.get();
2269 if (window != null) {
2270 try {
2271 window.setAlwaysOnTop(alwaysOnTop);
2272 } catch (SecurityException ignore) {
2273 }
2274 }
2275 }
2276 }
2277
2278 /**
2279 * Returns whether the always-on-top mode is supported for this
2280 * window. Some platforms may not support always-on-top windows, some
2281 * may support only some kinds of top-level windows; for example,
2282 * a platform may not support always-on-top modal dialogs.
2283 *
2284 * @return {@code true}, if the always-on-top mode is supported for
2285 * this window and this window's toolkit supports always-on-top windows,
2286 * {@code false} otherwise
2287 *
2288 * @see #setAlwaysOnTop(boolean)
2289 * @see #getToolkit
2290 * @see Toolkit#isAlwaysOnTopSupported
2291 * @since 1.6
2292 */
2293 public boolean isAlwaysOnTopSupported() {
2294 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2295 }
2296
2297
2298 /**
2299 * Returns whether this window is an always-on-top window.
2300 * @return {@code true}, if the window is in always-on-top state,
2301 * {@code false} otherwise
2302 * @see #setAlwaysOnTop
2303 * @since 1.5
2304 */
2305 public final boolean isAlwaysOnTop() {
2306 return alwaysOnTop;
2307 }
2308
2309
2310 /**
2311 * Returns the child Component of this Window that has focus if this Window
2312 * is focused; returns null otherwise.
2313 *
2314 * @return the child Component with focus, or null if this Window is not
2315 * focused
2316 * @see #getMostRecentFocusOwner
2317 * @see #isFocused
2318 */
2319 public Component getFocusOwner() {
2320 return (isFocused())
2321 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2322 getFocusOwner()
2323 : null;
2324 }
2325
2326 /**
2327 * Returns the child Component of this Window that will receive the focus
2328 * when this Window is focused. If this Window is currently focused, this
2329 * method returns the same Component as {@code getFocusOwner()}. If
2330 * this Window is not focused, then the child Component that most recently
2331 * requested focus will be returned. If no child Component has ever
2332 * requested focus, and this is a focusable Window, then this Window's
2333 * initial focusable Component is returned. If no child Component has ever
2334 * requested focus, and this is a non-focusable Window, null is returned.
2335 *
2336 * @return the child Component that will receive focus when this Window is
2337 * focused
2338 * @see #getFocusOwner
2339 * @see #isFocused
2340 * @see #isFocusableWindow
2341 * @since 1.4
2342 */
2343 public Component getMostRecentFocusOwner() {
2344 if (isFocused()) {
2345 return getFocusOwner();
2346 } else {
2347 Component mostRecent =
2348 KeyboardFocusManager.getMostRecentFocusOwner(this);
2349 if (mostRecent != null) {
2350 return mostRecent;
2351 } else {
2352 return (isFocusableWindow())
2353 ? getFocusTraversalPolicy().getInitialComponent(this)
2354 : null;
2355 }
2356 }
2357 }
2358
2359 /**
2360 * Returns whether this Window is active. Only a Frame or a Dialog may be
2361 * active. The native windowing system may denote the active Window or its
2362 * children with special decorations, such as a highlighted title bar. The
2363 * active Window is always either the focused Window, or the first Frame or
2364 * Dialog that is an owner of the focused Window.
2365 *
2366 * @return whether this is the active Window.
2367 * @see #isFocused
2368 * @since 1.4
2369 */
2370 public boolean isActive() {
2371 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2372 getActiveWindow() == this);
2373 }
2374
2375 /**
2376 * Returns whether this Window is focused. If there exists a focus owner,
2377 * the focused Window is the Window that is, or contains, that focus owner.
2378 * If there is no focus owner, then no Window is focused.
2379 * <p>
2380 * If the focused Window is a Frame or a Dialog it is also the active
2381 * Window. Otherwise, the active Window is the first Frame or Dialog that
2382 * is an owner of the focused Window.
2383 *
2384 * @return whether this is the focused Window.
2385 * @see #isActive
2386 * @since 1.4
2387 */
2388 public boolean isFocused() {
2389 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2390 getGlobalFocusedWindow() == this);
2391 }
2392
2393 /**
2394 * Gets a focus traversal key for this Window. (See {@code
2395 * setFocusTraversalKeys} for a full description of each key.)
2396 * <p>
2397 * If the traversal key has not been explicitly set for this Window,
2398 * then this Window's parent's traversal key is returned. If the
2399 * traversal key has not been explicitly set for any of this Window's
2400 * ancestors, then the current KeyboardFocusManager's default traversal key
2401 * is returned.
2402 *
2403 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2404 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2405 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2406 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2407 * @return the AWTKeyStroke for the specified key
2408 * @see Container#setFocusTraversalKeys
2409 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2410 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2411 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2412 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2413 * @throws IllegalArgumentException if id is not one of
2414 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2415 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2416 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2417 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2418 * @since 1.4
2419 */
2420 @SuppressWarnings("unchecked")
2421 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2422 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2423 throw new IllegalArgumentException("invalid focus traversal key identifier");
2424 }
2425
2426 // Okay to return Set directly because it is an unmodifiable view
2427 @SuppressWarnings("rawtypes")
2428 Set keystrokes = (focusTraversalKeys != null)
2429 ? focusTraversalKeys[id]
2430 : null;
2431
2432 if (keystrokes != null) {
2433 return keystrokes;
2434 } else {
2435 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2436 getDefaultFocusTraversalKeys(id);
2437 }
2438 }
2439
2440 /**
2441 * Does nothing because Windows must always be roots of a focus traversal
2442 * cycle. The passed-in value is ignored.
2443 *
2444 * @param focusCycleRoot this value is ignored
2445 * @see #isFocusCycleRoot
2446 * @see Container#setFocusTraversalPolicy
2447 * @see Container#getFocusTraversalPolicy
2448 * @since 1.4
2449 */
2450 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2451 }
2452
2453 /**
2454 * Always returns {@code true} because all Windows must be roots of a
2455 * focus traversal cycle.
2456 *
2457 * @return {@code true}
2458 * @see #setFocusCycleRoot
2459 * @see Container#setFocusTraversalPolicy
2460 * @see Container#getFocusTraversalPolicy
2461 * @since 1.4
2462 */
2463 public final boolean isFocusCycleRoot() {
2464 return true;
2465 }
2466
2467 /**
2468 * Always returns {@code null} because Windows have no ancestors; they
2469 * represent the top of the Component hierarchy.
2470 *
2471 * @return {@code null}
2472 * @see Container#isFocusCycleRoot()
2473 * @since 1.4
2474 */
2475 public final Container getFocusCycleRootAncestor() {
2476 return null;
2477 }
2478
2479 /**
2480 * Returns whether this Window can become the focused Window, that is,
2481 * whether this Window or any of its subcomponents can become the focus
2482 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2483 * must be set to {@code true}. For a Window which is not a Frame or
2484 * Dialog to be focusable, its focusable Window state must be set to
2485 * {@code true}, its nearest owning Frame or Dialog must be
2486 * showing on the screen, and it must contain at least one Component in
2487 * its focus traversal cycle. If any of these conditions is not met, then
2488 * neither this Window nor any of its subcomponents can become the focus
2489 * owner.
2490 *
2491 * @return {@code true} if this Window can be the focused Window;
2492 * {@code false} otherwise
2493 * @see #getFocusableWindowState
2494 * @see #setFocusableWindowState
2495 * @see #isShowing
2496 * @see Component#isFocusable
2497 * @since 1.4
2498 */
2499 public final boolean isFocusableWindow() {
2500 // If a Window/Frame/Dialog was made non-focusable, then it is always
2501 // non-focusable.
2502 if (!getFocusableWindowState()) {
2503 return false;
2504 }
2505
2506 // All other tests apply only to Windows.
2507 if (this instanceof Frame || this instanceof Dialog) {
2508 return true;
2509 }
2510
2511 // A Window must have at least one Component in its root focus
2512 // traversal cycle to be focusable.
2513 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2514 return false;
2515 }
2516
2517 // A Window's nearest owning Frame or Dialog must be showing on the
2518 // screen.
2519 for (Window owner = getOwner(); owner != null;
2520 owner = owner.getOwner())
2521 {
2522 if (owner instanceof Frame || owner instanceof Dialog) {
2523 return owner.isShowing();
2524 }
2525 }
2526
2527 return false;
2528 }
2529
2530 /**
2531 * Returns whether this Window can become the focused Window if it meets
2532 * the other requirements outlined in {@code isFocusableWindow}. If
2533 * this method returns {@code false}, then
2534 * {@code isFocusableWindow} will return {@code false} as well.
2535 * If this method returns {@code true}, then
2536 * {@code isFocusableWindow} may return {@code true} or
2537 * {@code false} depending upon the other requirements which must be
2538 * met in order for a Window to be focusable.
2539 * <p>
2540 * By default, all Windows have a focusable Window state of
2541 * {@code true}.
2542 *
2543 * @return whether this Window can be the focused Window
2544 * @see #isFocusableWindow
2545 * @see #setFocusableWindowState
2546 * @see #isShowing
2547 * @see Component#setFocusable
2548 * @since 1.4
2549 */
2550 public boolean getFocusableWindowState() {
2551 return focusableWindowState;
2552 }
2553
2554 /**
2555 * Sets whether this Window can become the focused Window if it meets
2556 * the other requirements outlined in {@code isFocusableWindow}. If
2557 * this Window's focusable Window state is set to {@code false}, then
2558 * {@code isFocusableWindow} will return {@code false}. If this
2559 * Window's focusable Window state is set to {@code true}, then
2560 * {@code isFocusableWindow} may return {@code true} or
2561 * {@code false} depending upon the other requirements which must be
2562 * met in order for a Window to be focusable.
2563 * <p>
2564 * Setting a Window's focusability state to {@code false} is the
2565 * standard mechanism for an application to identify to the AWT a Window
2566 * which will be used as a floating palette or toolbar, and thus should be
2567 * a non-focusable Window.
2568 *
2569 * Setting the focusability state on a visible {@code Window}
2570 * can have a delayed effect on some platforms — the actual
2571 * change may happen only when the {@code Window} becomes
2572 * hidden and then visible again. To ensure consistent behavior
2573 * across platforms, set the {@code Window}'s focusable state
2574 * when the {@code Window} is invisible and then show it.
2575 *
2576 * @param focusableWindowState whether this Window can be the focused
2577 * Window
2578 * @see #isFocusableWindow
2579 * @see #getFocusableWindowState
2580 * @see #isShowing
2581 * @see Component#setFocusable
2582 * @since 1.4
2583 */
2584 public void setFocusableWindowState(boolean focusableWindowState) {
2585 boolean oldFocusableWindowState;
2586 synchronized (this) {
2587 oldFocusableWindowState = this.focusableWindowState;
2588 this.focusableWindowState = focusableWindowState;
2589 }
2590 WindowPeer peer = (WindowPeer)this.peer;
2591 if (peer != null) {
2592 peer.updateFocusableWindowState();
2593 }
2594 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2595 focusableWindowState);
2596 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2597 for (Window owner = getOwner();
2598 owner != null;
2599 owner = owner.getOwner())
2600 {
2601 Component toFocus =
2602 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2603 if (toFocus != null && toFocus.requestFocus(false, CausedFocusEvent.Cause.ACTIVATION)) {
2604 return;
2605 }
2606 }
2607 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2608 clearGlobalFocusOwnerPriv();
2609 }
2610 }
2611
2612 /**
2613 * Sets whether this window should receive focus on
2614 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2615 * or being moved to the front (with a call to {@link #toFront}).
2616 * <p>
2617 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2618 * (e.g. when showing an owner of the window makes the window to be shown).
2619 * {@link #toFront} may also be called indirectly (e.g. when
2620 * {@link #setVisible setVisible(true)} is called on already visible window).
2621 * In all such cases this property takes effect as well.
2622 * <p>
2623 * The value of the property is not inherited by owned windows.
2624 *
2625 * @param autoRequestFocus whether this window should be focused on
2626 * subsequently being shown or being moved to the front
2627 * @see #isAutoRequestFocus
2628 * @see #isFocusableWindow
2629 * @see #setVisible
2630 * @see #toFront
2631 * @since 1.7
2632 */
2633 public void setAutoRequestFocus(boolean autoRequestFocus) {
2634 this.autoRequestFocus = autoRequestFocus;
2635 }
2636
2637 /**
2638 * Returns whether this window should receive focus on subsequently being shown
2639 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2640 * (with a call to {@link #toFront}).
2641 * <p>
2642 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2643 *
2644 * @return {@code autoRequestFocus} value
2645 * @see #setAutoRequestFocus
2646 * @since 1.7
2647 */
2648 public boolean isAutoRequestFocus() {
2649 return autoRequestFocus;
2650 }
2651
2652 /**
2653 * Adds a PropertyChangeListener to the listener list. The listener is
2654 * registered for all bound properties of this class, including the
2655 * following:
2656 * <ul>
2657 * <li>this Window's font ("font")</li>
2658 * <li>this Window's background color ("background")</li>
2659 * <li>this Window's foreground color ("foreground")</li>
2660 * <li>this Window's focusability ("focusable")</li>
2661 * <li>this Window's focus traversal keys enabled state
2662 * ("focusTraversalKeysEnabled")</li>
2663 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2664 * ("forwardFocusTraversalKeys")</li>
2665 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2666 * ("backwardFocusTraversalKeys")</li>
2667 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2668 * ("upCycleFocusTraversalKeys")</li>
2669 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2670 * ("downCycleFocusTraversalKeys")</li>
2671 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2672 * </li>
2673 * <li>this Window's focusable Window state ("focusableWindowState")
2674 * </li>
2675 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2676 * </ul>
2677 * Note that if this Window is inheriting a bound property, then no
2678 * event will be fired in response to a change in the inherited property.
2679 * <p>
2680 * If listener is null, no exception is thrown and no action is performed.
2681 *
2682 * @param listener the PropertyChangeListener to be added
2683 *
2684 * @see Component#removePropertyChangeListener
2685 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2686 */
2687 public void addPropertyChangeListener(PropertyChangeListener listener) {
2688 super.addPropertyChangeListener(listener);
2689 }
2690
2691 /**
2692 * Adds a PropertyChangeListener to the listener list for a specific
2693 * property. The specified property may be user-defined, or one of the
2694 * following:
2695 * <ul>
2696 * <li>this Window's font ("font")</li>
2697 * <li>this Window's background color ("background")</li>
2698 * <li>this Window's foreground color ("foreground")</li>
2699 * <li>this Window's focusability ("focusable")</li>
2700 * <li>this Window's focus traversal keys enabled state
2701 * ("focusTraversalKeysEnabled")</li>
2702 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2703 * ("forwardFocusTraversalKeys")</li>
2704 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2705 * ("backwardFocusTraversalKeys")</li>
2706 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2707 * ("upCycleFocusTraversalKeys")</li>
2708 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2709 * ("downCycleFocusTraversalKeys")</li>
2710 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2711 * </li>
2712 * <li>this Window's focusable Window state ("focusableWindowState")
2713 * </li>
2714 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2715 * </ul>
2716 * Note that if this Window is inheriting a bound property, then no
2717 * event will be fired in response to a change in the inherited property.
2718 * <p>
2719 * If listener is null, no exception is thrown and no action is performed.
2720 *
2721 * @param propertyName one of the property names listed above
2722 * @param listener the PropertyChangeListener to be added
2723 *
2724 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2725 * @see Component#removePropertyChangeListener
2726 */
2727 public void addPropertyChangeListener(String propertyName,
2728 PropertyChangeListener listener) {
2729 super.addPropertyChangeListener(propertyName, listener);
2730 }
2731
2732 /**
2733 * Indicates if this container is a validate root.
2734 * <p>
2735 * {@code Window} objects are the validate roots, and, therefore, they
2736 * override this method to return {@code true}.
2737 *
2738 * @return {@code true}
2739 * @since 1.7
2740 * @see java.awt.Container#isValidateRoot
2741 */
2742 @Override
2743 public boolean isValidateRoot() {
2744 return true;
2745 }
2746
2747 /**
2748 * Dispatches an event to this window or one of its sub components.
2749 * @param e the event
2750 */
2751 void dispatchEventImpl(AWTEvent e) {
2752 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2753 invalidate();
2754 validate();
2755 }
2756 super.dispatchEventImpl(e);
2757 }
2758
2759 /**
2760 * @deprecated As of JDK version 1.1
2761 * replaced by {@code dispatchEvent(AWTEvent)}.
2762 */
2763 @Deprecated
2764 public boolean postEvent(Event e) {
2765 if (handleEvent(e)) {
2766 e.consume();
2767 return true;
2768 }
2769 return false;
2770 }
2771
2772 /**
2773 * Checks if this Window is showing on screen.
2774 * @see Component#setVisible
2775 */
2776 public boolean isShowing() {
2777 return visible;
2778 }
2779
2780 boolean isDisposing() {
2781 return disposing;
2782 }
2783
2784 /**
2785 * @deprecated As of J2SE 1.4, replaced by
2786 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2787 */
2788 @Deprecated
2789 public void applyResourceBundle(ResourceBundle rb) {
2790 applyComponentOrientation(ComponentOrientation.getOrientation(rb));
2791 }
2792
2793 /**
2794 * @deprecated As of J2SE 1.4, replaced by
2795 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2796 */
2797 @Deprecated
2798 public void applyResourceBundle(String rbName) {
2799 applyResourceBundle(ResourceBundle.getBundle(rbName));
2800 }
2801
2802 /*
2803 * Support for tracking all windows owned by this window
2804 */
2805 void addOwnedWindow(WeakReference<Window> weakWindow) {
2806 if (weakWindow != null) {
2807 synchronized(ownedWindowList) {
2808 // this if statement should really be an assert, but we don't
2809 // have asserts...
2810 if (!ownedWindowList.contains(weakWindow)) {
2811 ownedWindowList.addElement(weakWindow);
2812 }
2813 }
2814 }
2815 }
2816
2817 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2818 if (weakWindow != null) {
2819 // synchronized block not required since removeElement is
2820 // already synchronized
2821 ownedWindowList.removeElement(weakWindow);
2822 }
2823 }
2824
2825 void connectOwnedWindow(Window child) {
2826 child.parent = this;
2827 addOwnedWindow(child.weakThis);
2828 child.disposerRecord.updateOwner();
2829 }
2830
2831 private void addToWindowList() {
2832 synchronized (Window.class) {
2833 @SuppressWarnings("unchecked")
2834 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2835 if (windowList == null) {
2836 windowList = new Vector<WeakReference<Window>>();
2837 appContext.put(Window.class, windowList);
2838 }
2839 windowList.add(weakThis);
2840 }
2841 }
2842
2843 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2844 synchronized (Window.class) {
2845 @SuppressWarnings("unchecked")
2846 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2847 if (windowList != null) {
2848 windowList.remove(weakThis);
2849 }
2850 }
2851 }
2852
2853 private void removeFromWindowList() {
2854 removeFromWindowList(appContext, weakThis);
2855 }
2856
2857 /**
2858 * Window type.
2859 *
2860 * Synchronization: ObjectLock
2861 */
2862 private Type type = Type.NORMAL;
2863
2864 /**
2865 * Sets the type of the window.
2866 *
2867 * This method can only be called while the window is not displayable.
2868 *
2869 * @param type the window type
2870 * @throws IllegalComponentStateException if the window
2871 * is displayable.
2872 * @throws IllegalArgumentException if the type is {@code null}
2873 * @see Component#isDisplayable
2874 * @see #getType
2875 * @since 1.7
2876 */
2877 public void setType(Type type) {
2878 if (type == null) {
2879 throw new IllegalArgumentException("type should not be null.");
2880 }
2881 synchronized (getTreeLock()) {
2882 if (isDisplayable()) {
2883 throw new IllegalComponentStateException(
2884 "The window is displayable.");
2885 }
2886 synchronized (getObjectLock()) {
2887 this.type = type;
2888 }
2889 }
2890 }
2891
2892 /**
2893 * Returns the type of the window.
2894 *
2895 * @return the type of the window
2896 * @see #setType
2897 * @since 1.7
2898 */
2899 public Type getType() {
2900 synchronized (getObjectLock()) {
2901 return type;
2902 }
2903 }
2904
2905 /**
2906 * The window serialized data version.
2907 *
2908 * @serial
2909 */
2910 private int windowSerializedDataVersion = 2;
2911
2912 /**
2913 * Writes default serializable fields to stream. Writes
2914 * a list of serializable {@code WindowListener}s and
2915 * {@code WindowFocusListener}s as optional data.
2916 * Writes a list of child windows as optional data.
2917 * Writes a list of icon images as optional data
2918 *
2919 * @param s the {@code ObjectOutputStream} to write
2920 * @serialData {@code null} terminated sequence of
2921 * 0 or more pairs; the pair consists of a {@code String}
2922 * and {@code Object}; the {@code String}
2923 * indicates the type of object and is one of the following:
2924 * {@code windowListenerK} indicating a
2925 * {@code WindowListener} object;
2926 * {@code windowFocusWindowK} indicating a
2927 * {@code WindowFocusListener} object;
2928 * {@code ownedWindowK} indicating a child
2929 * {@code Window} object
2930 *
2931 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2932 * @see Component#windowListenerK
2933 * @see Component#windowFocusListenerK
2934 * @see Component#ownedWindowK
2935 * @see #readObject(ObjectInputStream)
2936 */
2937 private void writeObject(ObjectOutputStream s) throws IOException {
2938 synchronized (this) {
2939 // Update old focusMgr fields so that our object stream can be read
2940 // by previous releases
2941 focusMgr = new FocusManager();
2942 focusMgr.focusRoot = this;
2943 focusMgr.focusOwner = getMostRecentFocusOwner();
2944
2945 s.defaultWriteObject();
2946
2947 // Clear fields so that we don't keep extra references around
2948 focusMgr = null;
2949
2950 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2951 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2952 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2953 }
2954
2955 s.writeObject(null);
2956
2957 synchronized (ownedWindowList) {
2958 for (int i = 0; i < ownedWindowList.size(); i++) {
2959 Window child = ownedWindowList.elementAt(i).get();
2960 if (child != null) {
2961 s.writeObject(ownedWindowK);
2962 s.writeObject(child);
2963 }
2964 }
2965 }
2966 s.writeObject(null);
2967
2968 //write icon array
2969 if (icons != null) {
2970 for (Image i : icons) {
2971 if (i instanceof Serializable) {
2972 s.writeObject(i);
2973 }
2974 }
2975 }
2976 s.writeObject(null);
2977 }
2978
2979 //
2980 // Part of deserialization procedure to be called before
2981 // user's code.
2982 //
2983 private void initDeserializedWindow() {
2984 setWarningString();
2985 inputContextLock = new Object();
2986
2987 // Deserialized Windows are not yet visible.
2988 visible = false;
2989
2990 weakThis = new WeakReference<>(this);
2991
2992 anchor = new Object();
2993 disposerRecord = new WindowDisposerRecord(appContext, this);
2994 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
2995
2996 addToWindowList();
2997 initGC(null);
2998 ownedWindowList = new Vector<>();
2999 }
3000
3001 private void deserializeResources(ObjectInputStream s)
3002 throws ClassNotFoundException, IOException, HeadlessException {
3003
3004 if (windowSerializedDataVersion < 2) {
3005 // Translate old-style focus tracking to new model. For 1.4 and
3006 // later releases, we'll rely on the Window's initial focusable
3007 // Component.
3008 if (focusMgr != null) {
3009 if (focusMgr.focusOwner != null) {
3010 KeyboardFocusManager.
3011 setMostRecentFocusOwner(this, focusMgr.focusOwner);
3012 }
3013 }
3014
3015 // This field is non-transient and relies on default serialization.
3016 // However, the default value is insufficient, so we need to set
3017 // it explicitly for object data streams prior to 1.4.
3018 focusableWindowState = true;
3019
3020
3021 }
3022
3023 Object keyOrNull;
3024 while(null != (keyOrNull = s.readObject())) {
3025 String key = ((String)keyOrNull).intern();
3026
3027 if (windowListenerK == key) {
3028 addWindowListener((WindowListener)(s.readObject()));
3029 } else if (windowFocusListenerK == key) {
3030 addWindowFocusListener((WindowFocusListener)(s.readObject()));
3031 } else if (windowStateListenerK == key) {
3032 addWindowStateListener((WindowStateListener)(s.readObject()));
3033 } else // skip value for unrecognized key
3034 s.readObject();
3035 }
3036
3037 try {
3038 while (null != (keyOrNull = s.readObject())) {
3039 String key = ((String)keyOrNull).intern();
3040
3041 if (ownedWindowK == key)
3042 connectOwnedWindow((Window) s.readObject());
3043
3044 else // skip value for unrecognized key
3045 s.readObject();
3046 }
3047
3048 //read icons
3049 Object obj = s.readObject(); //Throws OptionalDataException
3050 //for pre1.6 objects.
3051 icons = new ArrayList<Image>(); //Frame.readObject() assumes
3052 //pre1.6 version if icons is null.
3053 while (obj != null) {
3054 if (obj instanceof Image) {
3055 icons.add((Image)obj);
3056 }
3057 obj = s.readObject();
3058 }
3059 }
3060 catch (OptionalDataException e) {
3061 // 1.1 serialized form
3062 // ownedWindowList will be updated by Frame.readObject
3063 }
3064
3065 }
3066
3067 /**
3068 * Reads the {@code ObjectInputStream} and an optional
3069 * list of listeners to receive various events fired by
3070 * the component; also reads a list of
3071 * (possibly {@code null}) child windows.
3072 * Unrecognized keys or values will be ignored.
3073 *
3074 * @param s the {@code ObjectInputStream} to read
3075 * @exception HeadlessException if
3076 * {@code GraphicsEnvironment.isHeadless} returns
3077 * {@code true}
3078 * @see java.awt.GraphicsEnvironment#isHeadless
3079 * @see #writeObject
3080 */
3081 private void readObject(ObjectInputStream s)
3082 throws ClassNotFoundException, IOException, HeadlessException
3083 {
3084 GraphicsEnvironment.checkHeadless();
3085 initDeserializedWindow();
3086 ObjectInputStream.GetField f = s.readFields();
3087
3088 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3089 state = f.get("state", 0);
3090 focusableWindowState = f.get("focusableWindowState", true);
3091 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3092 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3093 // Note: 1.4 (or later) doesn't use focusMgr
3094 focusMgr = (FocusManager)f.get("focusMgr", null);
3095 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3096 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3097 setModalExclusionType(et); // since 6.0
3098 boolean aot = f.get("alwaysOnTop", false);
3099 if(aot) {
3100 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3101 }
3102 shape = (Shape)f.get("shape", null);
3103 opacity = (Float)f.get("opacity", 1.0f);
3104
3105 this.securityWarningWidth = 0;
3106 this.securityWarningHeight = 0;
3107 this.securityWarningPointX = 2.0;
3108 this.securityWarningPointY = 0.0;
3109 this.securityWarningAlignmentX = RIGHT_ALIGNMENT;
3110 this.securityWarningAlignmentY = TOP_ALIGNMENT;
3111
3112 deserializeResources(s);
3113 }
3114
3115 /*
3116 * --- Accessibility Support ---
3117 *
3118 */
3119
3120 /**
3121 * Gets the AccessibleContext associated with this Window.
3122 * For windows, the AccessibleContext takes the form of an
3123 * AccessibleAWTWindow.
3124 * A new AccessibleAWTWindow instance is created if necessary.
3125 *
3126 * @return an AccessibleAWTWindow that serves as the
3127 * AccessibleContext of this Window
3128 * @since 1.3
3129 */
3130 public AccessibleContext getAccessibleContext() {
3131 if (accessibleContext == null) {
3132 accessibleContext = new AccessibleAWTWindow();
3133 }
3134 return accessibleContext;
3135 }
3136
3137 /**
3138 * This class implements accessibility support for the
3139 * {@code Window} class. It provides an implementation of the
3140 * Java Accessibility API appropriate to window user-interface elements.
3141 * @since 1.3
3142 */
3143 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3144 {
3145 /*
3146 * JDK 1.3 serialVersionUID
3147 */
3148 private static final long serialVersionUID = 4215068635060671780L;
3149
3150 /**
3151 * Get the role of this object.
3152 *
3153 * @return an instance of AccessibleRole describing the role of the
3154 * object
3155 * @see javax.accessibility.AccessibleRole
3156 */
3157 public AccessibleRole getAccessibleRole() {
3158 return AccessibleRole.WINDOW;
3159 }
3160
3161 /**
3162 * Get the state of this object.
3163 *
3164 * @return an instance of AccessibleStateSet containing the current
3165 * state set of the object
3166 * @see javax.accessibility.AccessibleState
3167 */
3168 public AccessibleStateSet getAccessibleStateSet() {
3169 AccessibleStateSet states = super.getAccessibleStateSet();
3170 if (getFocusOwner() != null) {
3171 states.add(AccessibleState.ACTIVE);
3172 }
3173 return states;
3174 }
3175
3176 } // inner class AccessibleAWTWindow
3177
3178 @Override
3179 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3180 if (gc == null) {
3181 gc = GraphicsEnvironment.
3182 getLocalGraphicsEnvironment().
3183 getDefaultScreenDevice().
3184 getDefaultConfiguration();
3185 }
3186 synchronized (getTreeLock()) {
3187 super.setGraphicsConfiguration(gc);
3188 if (log.isLoggable(PlatformLogger.Level.FINER)) {
3189 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3190 }
3191 }
3192 }
3193
3194 /**
3195 * Sets the location of the window relative to the specified
3196 * component according to the following scenarios.
3197 * <p>
3198 * The target screen mentioned below is a screen to which
3199 * the window should be placed after the setLocationRelativeTo
3200 * method is called.
3201 * <ul>
3202 * <li>If the component is {@code null}, or the {@code
3203 * GraphicsConfiguration} associated with this component is
3204 * {@code null}, the window is placed in the center of the
3205 * screen. The center point can be obtained with the {@link
3206 * GraphicsEnvironment#getCenterPoint
3207 * GraphicsEnvironment.getCenterPoint} method.
3208 * <li>If the component is not {@code null}, but it is not
3209 * currently showing, the window is placed in the center of
3210 * the target screen defined by the {@code
3211 * GraphicsConfiguration} associated with this component.
3212 * <li>If the component is not {@code null} and is shown on
3213 * the screen, then the window is located in such a way that
3214 * the center of the window coincides with the center of the
3215 * component.
3216 * </ul>
3217 * <p>
3218 * If the screens configuration does not allow the window to
3219 * be moved from one screen to another, then the window is
3220 * only placed at the location determined according to the
3221 * above conditions and its {@code GraphicsConfiguration} is
3222 * not changed.
3223 * <p>
3224 * <b>Note</b>: If the lower edge of the window is out of the screen,
3225 * then the window is placed to the side of the {@code Component}
3226 * that is closest to the center of the screen. So if the
3227 * component is on the right part of the screen, the window
3228 * is placed to its left, and vice versa.
3229 * <p>
3230 * If after the window location has been calculated, the upper,
3231 * left, or right edge of the window is out of the screen,
3232 * then the window is located in such a way that the upper,
3233 * left, or right edge of the window coincides with the
3234 * corresponding edge of the screen. If both left and right
3235 * edges of the window are out of the screen, the window is
3236 * placed at the left side of the screen. The similar placement
3237 * will occur if both top and bottom edges are out of the screen.
3238 * In that case, the window is placed at the top side of the screen.
3239 * <p>
3240 * The method changes the geometry-related data. Therefore,
3241 * the native windowing system may ignore such requests, or it may modify
3242 * the requested data, so that the {@code Window} object is placed and sized
3243 * in a way that corresponds closely to the desktop settings.
3244 *
3245 * @param c the component in relation to which the window's location
3246 * is determined
3247 * @see java.awt.GraphicsEnvironment#getCenterPoint
3248 * @since 1.4
3249 */
3250 public void setLocationRelativeTo(Component c) {
3251 // target location
3252 int dx = 0, dy = 0;
3253 // target GC
3254 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3255 Rectangle gcBounds = gc.getBounds();
3256
3257 Dimension windowSize = getSize();
3258
3259 // search a top-level of c
3260 Window componentWindow = SunToolkit.getContainingWindow(c);
3261 if ((c == null) || (componentWindow == null)) {
3262 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3263 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3264 gcBounds = gc.getBounds();
3265 Point centerPoint = ge.getCenterPoint();
3266 dx = centerPoint.x - windowSize.width / 2;
3267 dy = centerPoint.y - windowSize.height / 2;
3268 } else if (!c.isShowing()) {
3269 gc = componentWindow.getGraphicsConfiguration();
3270 gcBounds = gc.getBounds();
3271 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3272 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3273 } else {
3274 gc = componentWindow.getGraphicsConfiguration();
3275 gcBounds = gc.getBounds();
3276 Dimension compSize = c.getSize();
3277 Point compLocation = c.getLocationOnScreen();
3278 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3279 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3280
3281 // Adjust for bottom edge being offscreen
3282 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3283 dy = gcBounds.y + gcBounds.height - windowSize.height;
3284 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3285 dx = compLocation.x + compSize.width;
3286 } else {
3287 dx = compLocation.x - windowSize.width;
3288 }
3289 }
3290 }
3291
3292 // Avoid being placed off the edge of the screen:
3293 // bottom
3294 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3295 dy = gcBounds.y + gcBounds.height - windowSize.height;
3296 }
3297 // top
3298 if (dy < gcBounds.y) {
3299 dy = gcBounds.y;
3300 }
3301 // right
3302 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3303 dx = gcBounds.x + gcBounds.width - windowSize.width;
3304 }
3305 // left
3306 if (dx < gcBounds.x) {
3307 dx = gcBounds.x;
3308 }
3309
3310 setLocation(dx, dy);
3311 }
3312
3313 /**
3314 * Overridden from Component. Top-level Windows should not propagate a
3315 * MouseWheelEvent beyond themselves into their owning Windows.
3316 */
3317 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3318
3319 /**
3320 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3321 */
3322 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3323
3324 /**
3325 * Creates a new strategy for multi-buffering on this component.
3326 * Multi-buffering is useful for rendering performance. This method
3327 * attempts to create the best strategy available with the number of
3328 * buffers supplied. It will always create a {@code BufferStrategy}
3329 * with that number of buffers.
3330 * A page-flipping strategy is attempted first, then a blitting strategy
3331 * using accelerated buffers. Finally, an unaccelerated blitting
3332 * strategy is used.
3333 * <p>
3334 * Each time this method is called,
3335 * the existing buffer strategy for this component is discarded.
3336 * @param numBuffers number of buffers to create
3337 * @exception IllegalArgumentException if numBuffers is less than 1.
3338 * @exception IllegalStateException if the component is not displayable
3339 * @see #isDisplayable
3340 * @see #getBufferStrategy
3341 * @since 1.4
3342 */
3343 public void createBufferStrategy(int numBuffers) {
3344 super.createBufferStrategy(numBuffers);
3345 }
3346
3347 /**
3348 * Creates a new strategy for multi-buffering on this component with the
3349 * required buffer capabilities. This is useful, for example, if only
3350 * accelerated memory or page flipping is desired (as specified by the
3351 * buffer capabilities).
3352 * <p>
3353 * Each time this method
3354 * is called, the existing buffer strategy for this component is discarded.
3355 * @param numBuffers number of buffers to create, including the front buffer
3356 * @param caps the required capabilities for creating the buffer strategy;
3357 * cannot be {@code null}
3358 * @exception AWTException if the capabilities supplied could not be
3359 * supported or met; this may happen, for example, if there is not enough
3360 * accelerated memory currently available, or if page flipping is specified
3361 * but not possible.
3362 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3363 * caps is {@code null}
3364 * @see #getBufferStrategy
3365 * @since 1.4
3366 */
3367 public void createBufferStrategy(int numBuffers,
3368 BufferCapabilities caps) throws AWTException {
3369 super.createBufferStrategy(numBuffers, caps);
3370 }
3371
3372 /**
3373 * Returns the {@code BufferStrategy} used by this component. This
3374 * method will return null if a {@code BufferStrategy} has not yet
3375 * been created or has been disposed.
3376 *
3377 * @return the buffer strategy used by this component
3378 * @see #createBufferStrategy
3379 * @since 1.4
3380 */
3381 public BufferStrategy getBufferStrategy() {
3382 return super.getBufferStrategy();
3383 }
3384
3385 Component getTemporaryLostComponent() {
3386 return temporaryLostComponent;
3387 }
3388 Component setTemporaryLostComponent(Component component) {
3389 Component previousComp = temporaryLostComponent;
3390 // Check that "component" is an acceptable focus owner and don't store it otherwise
3391 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3392 if (component == null || component.canBeFocusOwner()) {
3393 temporaryLostComponent = component;
3394 } else {
3395 temporaryLostComponent = null;
3396 }
3397 return previousComp;
3398 }
3399
3400 /**
3401 * Checks whether this window can contain focus owner.
3402 * Verifies that it is focusable and as container it can container focus owner.
3403 * @since 1.5
3404 */
3405 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3406 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3407 }
3408
3409 private boolean locationByPlatform = locationByPlatformProp;
3410
3411
3412 /**
3413 * Sets whether this Window should appear at the default location for the
3414 * native windowing system or at the current location (returned by
3415 * {@code getLocation}) the next time the Window is made visible.
3416 * This behavior resembles a native window shown without programmatically
3417 * setting its location. Most windowing systems cascade windows if their
3418 * locations are not explicitly set. The actual location is determined once the
3419 * window is shown on the screen.
3420 * <p>
3421 * This behavior can also be enabled by setting the System Property
3422 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3423 * take precedence.
3424 * <p>
3425 * Calls to {@code setVisible}, {@code setLocation} and
3426 * {@code setBounds} after calling {@code setLocationByPlatform} clear
3427 * this property of the Window.
3428 * <p>
3429 * For example, after the following code is executed:
3430 * <pre>
3431 * setLocationByPlatform(true);
3432 * setVisible(true);
3433 * boolean flag = isLocationByPlatform();
3434 * </pre>
3435 * The window will be shown at platform's default location and
3436 * {@code flag} will be {@code false}.
3437 * <p>
3438 * In the following sample:
3439 * <pre>
3440 * setLocationByPlatform(true);
3441 * setLocation(10, 10);
3442 * boolean flag = isLocationByPlatform();
3443 * setVisible(true);
3444 * </pre>
3445 * The window will be shown at (10, 10) and {@code flag} will be
3446 * {@code false}.
3447 *
3448 * @param locationByPlatform {@code true} if this Window should appear
3449 * at the default location, {@code false} if at the current location
3450 * @throws IllegalComponentStateException if the window
3451 * is showing on screen and locationByPlatform is {@code true}.
3452 * @see #setLocation
3453 * @see #isShowing
3454 * @see #setVisible
3455 * @see #isLocationByPlatform
3456 * @see java.lang.System#getProperty(String)
3457 * @since 1.5
3458 */
3459 public void setLocationByPlatform(boolean locationByPlatform) {
3460 synchronized (getTreeLock()) {
3461 if (locationByPlatform && isShowing()) {
3462 throw new IllegalComponentStateException("The window is showing on screen.");
3463 }
3464 this.locationByPlatform = locationByPlatform;
3465 }
3466 }
3467
3468 /**
3469 * Returns {@code true} if this Window will appear at the default location
3470 * for the native windowing system the next time this Window is made visible.
3471 * This method always returns {@code false} if the Window is showing on the
3472 * screen.
3473 *
3474 * @return whether this Window will appear at the default location
3475 * @see #setLocationByPlatform
3476 * @see #isShowing
3477 * @since 1.5
3478 */
3479 public boolean isLocationByPlatform() {
3480 synchronized (getTreeLock()) {
3481 return locationByPlatform;
3482 }
3483 }
3484
3485 /**
3486 * {@inheritDoc}
3487 * <p>
3488 * The {@code width} or {@code height} values
3489 * are automatically enlarged if either is less than
3490 * the minimum size as specified by previous call to
3491 * {@code setMinimumSize}.
3492 * <p>
3493 * The method changes the geometry-related data. Therefore,
3494 * the native windowing system may ignore such requests, or it may modify
3495 * the requested data, so that the {@code Window} object is placed and sized
3496 * in a way that corresponds closely to the desktop settings.
3497 *
3498 * @see #getBounds
3499 * @see #setLocation(int, int)
3500 * @see #setLocation(Point)
3501 * @see #setSize(int, int)
3502 * @see #setSize(Dimension)
3503 * @see #setMinimumSize
3504 * @see #setLocationByPlatform
3505 * @see #isLocationByPlatform
3506 * @since 1.6
3507 */
3508 public void setBounds(int x, int y, int width, int height) {
3509 synchronized (getTreeLock()) {
3510 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3511 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3512 {
3513 locationByPlatform = false;
3514 }
3515 super.setBounds(x, y, width, height);
3516 }
3517 }
3518
3519 /**
3520 * {@inheritDoc}
3521 * <p>
3522 * The {@code r.width} or {@code r.height} values
3523 * will be automatically enlarged if either is less than
3524 * the minimum size as specified by previous call to
3525 * {@code setMinimumSize}.
3526 * <p>
3527 * The method changes the geometry-related data. Therefore,
3528 * the native windowing system may ignore such requests, or it may modify
3529 * the requested data, so that the {@code Window} object is placed and sized
3530 * in a way that corresponds closely to the desktop settings.
3531 *
3532 * @see #getBounds
3533 * @see #setLocation(int, int)
3534 * @see #setLocation(Point)
3535 * @see #setSize(int, int)
3536 * @see #setSize(Dimension)
3537 * @see #setMinimumSize
3538 * @see #setLocationByPlatform
3539 * @see #isLocationByPlatform
3540 * @since 1.6
3541 */
3542 public void setBounds(Rectangle r) {
3543 setBounds(r.x, r.y, r.width, r.height);
3544 }
3545
3546 /**
3547 * Determines whether this component will be displayed on the screen.
3548 * @return {@code true} if the component and all of its ancestors
3549 * until a toplevel window are visible, {@code false} otherwise
3550 */
3551 boolean isRecursivelyVisible() {
3552 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3553 // We're overriding isRecursivelyVisible to implement this policy.
3554 return visible;
3555 }
3556
3557
3558 // ******************** SHAPES & TRANSPARENCY CODE ********************
3559
3560 /**
3561 * Returns the opacity of the window.
3562 *
3563 * @return the opacity of the window
3564 *
3565 * @see Window#setOpacity(float)
3566 * @see GraphicsDevice.WindowTranslucency
3567 *
3568 * @since 1.7
3569 */
3570 public float getOpacity() {
3571 synchronized (getTreeLock()) {
3572 return opacity;
3573 }
3574 }
3575
3576 /**
3577 * Sets the opacity of the window.
3578 * <p>
3579 * The opacity value is in the range [0..1]. Note that setting the opacity
3580 * level of 0 may or may not disable the mouse event handling on this
3581 * window. This is a platform-dependent behavior.
3582 * <p>
3583 * The following conditions must be met in order to set the opacity value
3584 * less than {@code 1.0f}:
3585 * <ul>
3586 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3587 * translucency must be supported by the underlying system
3588 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3589 * and {@link Dialog#setUndecorated})
3590 * <li>The window must not be in full-screen mode (see {@link
3591 * GraphicsDevice#setFullScreenWindow(Window)})
3592 * </ul>
3593 * <p>
3594 * If the requested opacity value is less than {@code 1.0f}, and any of the
3595 * above conditions are not met, the window opacity will not change,
3596 * and the {@code IllegalComponentStateException} will be thrown.
3597 * <p>
3598 * The translucency levels of individual pixels may also be effected by the
3599 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3600 * current shape of this window (see {@link #setShape(Shape)}).
3601 *
3602 * @param opacity the opacity level to set to the window
3603 *
3604 * @throws IllegalArgumentException if the opacity is out of the range
3605 * [0..1]
3606 * @throws IllegalComponentStateException if the window is decorated and
3607 * the opacity is less than {@code 1.0f}
3608 * @throws IllegalComponentStateException if the window is in full screen
3609 * mode, and the opacity is less than {@code 1.0f}
3610 * @throws UnsupportedOperationException if the {@code
3611 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3612 * translucency is not supported and the opacity is less than
3613 * {@code 1.0f}
3614 *
3615 * @see Window#getOpacity
3616 * @see Window#setBackground(Color)
3617 * @see Window#setShape(Shape)
3618 * @see Frame#isUndecorated
3619 * @see Dialog#isUndecorated
3620 * @see GraphicsDevice.WindowTranslucency
3621 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3622 *
3623 * @since 1.7
3624 */
3625 @SuppressWarnings("deprecation")
3626 public void setOpacity(float opacity) {
3627 synchronized (getTreeLock()) {
3628 if (opacity < 0.0f || opacity > 1.0f) {
3629 throw new IllegalArgumentException(
3630 "The value of opacity should be in the range [0.0f .. 1.0f].");
3631 }
3632 if (opacity < 1.0f) {
3633 GraphicsConfiguration gc = getGraphicsConfiguration();
3634 GraphicsDevice gd = gc.getDevice();
3635 if (gc.getDevice().getFullScreenWindow() == this) {
3636 throw new IllegalComponentStateException(
3637 "Setting opacity for full-screen window is not supported.");
3638 }
3639 if (!gd.isWindowTranslucencySupported(
3640 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3641 {
3642 throw new UnsupportedOperationException(
3643 "TRANSLUCENT translucency is not supported.");
3644 }
3645 }
3646 this.opacity = opacity;
3647 WindowPeer peer = (WindowPeer) this.peer;
3648 if (peer != null) {
3649 peer.setOpacity(opacity);
3650 }
3651 }
3652 }
3653
3654 /**
3655 * Returns the shape of the window.
3656 *
3657 * The value returned by this method may not be the same as
3658 * previously set with {@code setShape(shape)}, but it is guaranteed
3659 * to represent the same shape.
3660 *
3661 * @return the shape of the window or {@code null} if no
3662 * shape is specified for the window
3663 *
3664 * @see Window#setShape(Shape)
3665 * @see GraphicsDevice.WindowTranslucency
3666 *
3667 * @since 1.7
3668 */
3669 public Shape getShape() {
3670 synchronized (getTreeLock()) {
3671 return shape == null ? null : new Path2D.Float(shape);
3672 }
3673 }
3674
3675 /**
3676 * Sets the shape of the window.
3677 * <p>
3678 * Setting a shape cuts off some parts of the window. Only the parts that
3679 * belong to the given {@link Shape} remain visible and clickable. If
3680 * the shape argument is {@code null}, this method restores the default
3681 * shape, making the window rectangular on most platforms.
3682 * <p>
3683 * The following conditions must be met to set a non-null shape:
3684 * <ul>
3685 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3686 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3687 * underlying system
3688 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3689 * and {@link Dialog#setUndecorated})
3690 * <li>The window must not be in full-screen mode (see {@link
3691 * GraphicsDevice#setFullScreenWindow(Window)})
3692 * </ul>
3693 * <p>
3694 * If the requested shape is not {@code null}, and any of the above
3695 * conditions are not met, the shape of this window will not change,
3696 * and either the {@code UnsupportedOperationException} or {@code
3697 * IllegalComponentStateException} will be thrown.
3698 * <p>
3699 * The translucency levels of individual pixels may also be effected by the
3700 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3701 * opacity value (see {@link #setOpacity(float)}). See {@link
3702 * GraphicsDevice.WindowTranslucency} for more details.
3703 *
3704 * @param shape the shape to set to the window
3705 *
3706 * @throws IllegalComponentStateException if the shape is not {@code
3707 * null} and the window is decorated
3708 * @throws IllegalComponentStateException if the shape is not {@code
3709 * null} and the window is in full-screen mode
3710 * @throws UnsupportedOperationException if the shape is not {@code
3711 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3712 * PERPIXEL_TRANSPARENT} translucency is not supported
3713 *
3714 * @see Window#getShape()
3715 * @see Window#setBackground(Color)
3716 * @see Window#setOpacity(float)
3717 * @see Frame#isUndecorated
3718 * @see Dialog#isUndecorated
3719 * @see GraphicsDevice.WindowTranslucency
3720 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3721 *
3722 * @since 1.7
3723 */
3724 public void setShape(Shape shape) {
3725 synchronized (getTreeLock()) {
3726 if (shape != null) {
3727 GraphicsConfiguration gc = getGraphicsConfiguration();
3728 GraphicsDevice gd = gc.getDevice();
3729 if (gc.getDevice().getFullScreenWindow() == this) {
3730 throw new IllegalComponentStateException(
3731 "Setting shape for full-screen window is not supported.");
3732 }
3733 if (!gd.isWindowTranslucencySupported(
3734 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3735 {
3736 throw new UnsupportedOperationException(
3737 "PERPIXEL_TRANSPARENT translucency is not supported.");
3738 }
3739 }
3740 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3741 WindowPeer peer = (WindowPeer) this.peer;
3742 if (peer != null) {
3743 peer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3744 }
3745 }
3746 }
3747
3748 /**
3749 * Gets the background color of this window.
3750 * <p>
3751 * Note that the alpha component of the returned color indicates whether
3752 * the window is in the non-opaque (per-pixel translucent) mode.
3753 *
3754 * @return this component's background color
3755 *
3756 * @see Window#setBackground(Color)
3757 * @see Window#isOpaque
3758 * @see GraphicsDevice.WindowTranslucency
3759 */
3760 @Override
3761 public Color getBackground() {
3762 return super.getBackground();
3763 }
3764
3765 /**
3766 * Sets the background color of this window.
3767 * <p>
3768 * If the windowing system supports the {@link
3769 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3770 * translucency, the alpha component of the given background color
3771 * may effect the mode of operation for this window: it indicates whether
3772 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3773 * (alpha is less than {@code 1.0f}). If the given background color is
3774 * {@code null}, the window is considered completely opaque.
3775 * <p>
3776 * All the following conditions must be met to enable the per-pixel
3777 * transparency mode for this window:
3778 * <ul>
3779 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3780 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3781 * device where this window is located
3782 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3783 * and {@link Dialog#setUndecorated})
3784 * <li>The window must not be in full-screen mode (see {@link
3785 * GraphicsDevice#setFullScreenWindow(Window)})
3786 * </ul>
3787 * <p>
3788 * If the alpha component of the requested background color is less than
3789 * {@code 1.0f}, and any of the above conditions are not met, the background
3790 * color of this window will not change, the alpha component of the given
3791 * background color will not affect the mode of operation for this window,
3792 * and either the {@code UnsupportedOperationException} or {@code
3793 * IllegalComponentStateException} will be thrown.
3794 * <p>
3795 * When the window is per-pixel translucent, the drawing sub-system
3796 * respects the alpha value of each individual pixel. If a pixel gets
3797 * painted with the alpha color component equal to zero, it becomes
3798 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3799 * pixel is fully opaque. Interim values of the alpha color component make
3800 * the pixel semi-transparent. In this mode, the background of the window
3801 * gets painted with the alpha value of the given background color. If the
3802 * alpha value of the argument of this method is equal to {@code 0}, the
3803 * background is not painted at all.
3804 * <p>
3805 * The actual level of translucency of a given pixel also depends on window
3806 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3807 * this window (see {@link #setShape(Shape)}).
3808 * <p>
3809 * Note that painting a pixel with the alpha value of {@code 0} may or may
3810 * not disable the mouse event handling on this pixel. This is a
3811 * platform-dependent behavior. To make sure the mouse events do not get
3812 * dispatched to a particular pixel, the pixel must be excluded from the
3813 * shape of the window.
3814 * <p>
3815 * Enabling the per-pixel translucency mode may change the graphics
3816 * configuration of this window due to the native platform requirements.
3817 *
3818 * @param bgColor the color to become this window's background color.
3819 *
3820 * @throws IllegalComponentStateException if the alpha value of the given
3821 * background color is less than {@code 1.0f} and the window is decorated
3822 * @throws IllegalComponentStateException if the alpha value of the given
3823 * background color is less than {@code 1.0f} and the window is in
3824 * full-screen mode
3825 * @throws UnsupportedOperationException if the alpha value of the given
3826 * background color is less than {@code 1.0f} and {@link
3827 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3828 * PERPIXEL_TRANSLUCENT} translucency is not supported
3829 *
3830 * @see Window#getBackground
3831 * @see Window#isOpaque
3832 * @see Window#setOpacity(float)
3833 * @see Window#setShape(Shape)
3834 * @see Frame#isUndecorated
3835 * @see Dialog#isUndecorated
3836 * @see GraphicsDevice.WindowTranslucency
3837 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3838 * @see GraphicsConfiguration#isTranslucencyCapable()
3839 */
3840 @Override
3841 public void setBackground(Color bgColor) {
3842 Color oldBg = getBackground();
3843 super.setBackground(bgColor);
3844 if (oldBg != null && oldBg.equals(bgColor)) {
3845 return;
3846 }
3847 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3848 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3849 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3850 GraphicsConfiguration gc = getGraphicsConfiguration();
3851 GraphicsDevice gd = gc.getDevice();
3852 if (gc.getDevice().getFullScreenWindow() == this) {
3853 throw new IllegalComponentStateException(
3854 "Making full-screen window non opaque is not supported.");
3855 }
3856 if (!gc.isTranslucencyCapable()) {
3857 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3858 if (capableGC == null) {
3859 throw new UnsupportedOperationException(
3860 "PERPIXEL_TRANSLUCENT translucency is not supported");
3861 }
3862 setGraphicsConfiguration(capableGC);
3863 }
3864 setLayersOpaque(this, false);
3865 } else if ((oldAlpha < 255) && (alpha == 255)) {
3866 setLayersOpaque(this, true);
3867 }
3868 WindowPeer peer = (WindowPeer) this.peer;
3869 if (peer != null) {
3870 peer.setOpaque(alpha == 255);
3871 }
3872 }
3873
3874 /**
3875 * Indicates if the window is currently opaque.
3876 * <p>
3877 * The method returns {@code false} if the background color of the window
3878 * is not {@code null} and the alpha component of the color is less than
3879 * {@code 1.0f}. The method returns {@code true} otherwise.
3880 *
3881 * @return {@code true} if the window is opaque, {@code false} otherwise
3882 *
3883 * @see Window#getBackground
3884 * @see Window#setBackground(Color)
3885 * @since 1.7
3886 */
3887 @Override
3888 public boolean isOpaque() {
3889 Color bg = getBackground();
3890 return bg != null ? bg.getAlpha() == 255 : true;
3891 }
3892
3893 private void updateWindow() {
3894 synchronized (getTreeLock()) {
3895 WindowPeer peer = (WindowPeer) this.peer;
3896 if (peer != null) {
3897 peer.updateWindow();
3898 }
3899 }
3900 }
3901
3902 /**
3903 * {@inheritDoc}
3904 *
3905 * @since 1.7
3906 */
3907 @Override
3908 public void paint(Graphics g) {
3909 if (!isOpaque()) {
3910 Graphics gg = g.create();
3911 try {
3912 if (gg instanceof Graphics2D) {
3913 gg.setColor(getBackground());
3914 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3915 gg.fillRect(0, 0, getWidth(), getHeight());
3916 }
3917 } finally {
3918 gg.dispose();
3919 }
3920 }
3921 super.paint(g);
3922 }
3923
3924 private static void setLayersOpaque(Component component, boolean isOpaque) {
3925 // Shouldn't use instanceof to avoid loading Swing classes
3926 // if it's a pure AWT application.
3927 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3928 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3929 javax.swing.JRootPane root = rpc.getRootPane();
3930 javax.swing.JLayeredPane lp = root.getLayeredPane();
3931 Container c = root.getContentPane();
3932 javax.swing.JComponent content =
3933 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3934 lp.setOpaque(isOpaque);
3935 root.setOpaque(isOpaque);
3936 if (content != null) {
3937 content.setOpaque(isOpaque);
3938
3939 // Iterate down one level to see whether we have a JApplet
3940 // (which is also a RootPaneContainer) which requires processing
3941 int numChildren = content.getComponentCount();
3942 if (numChildren > 0) {
3943 Component child = content.getComponent(0);
3944 // It's OK to use instanceof here because we've
3945 // already loaded the RootPaneContainer class by now
3946 if (child instanceof javax.swing.RootPaneContainer) {
3947 setLayersOpaque(child, isOpaque);
3948 }
3949 }
3950 }
3951 }
3952 }
3953
3954
3955 // ************************** MIXING CODE *******************************
3956
3957 // A window has an owner, but it does NOT have a container
3958 @Override
3959 final Container getContainer() {
3960 return null;
3961 }
3962
3963 /**
3964 * Applies the shape to the component
3965 * @param shape Shape to be applied to the component
3966 */
3967 @Override
3968 final void applyCompoundShape(Region shape) {
3969 // The shape calculated by mixing code is not intended to be applied
3970 // to windows or frames
3971 }
3972
3973 @Override
3974 final void applyCurrentShape() {
3975 // The shape calculated by mixing code is not intended to be applied
3976 // to windows or frames
3977 }
3978
3979 @Override
3980 final void mixOnReshaping() {
3981 // The shape calculated by mixing code is not intended to be applied
3982 // to windows or frames
3983 }
3984
3985 @Override
3986 final Point getLocationOnWindow() {
3987 return new Point(0, 0);
3988 }
3989
3990 // ****************** END OF MIXING CODE ********************************
3991
3992 /**
3993 * Limit the given double value with the given range.
3994 */
3995 private static double limit(double value, double min, double max) {
3996 value = Math.max(value, min);
3997 value = Math.min(value, max);
3998 return value;
3999 }
4000
4001 /**
4002 * Calculate the position of the security warning.
4003 *
4004 * This method gets the window location/size as reported by the native
4005 * system since the locally cached values may represent outdated data.
4006 *
4007 * The method is used from the native code, or via AWTAccessor.
4008 *
4009 * NOTE: this method is invoked on the toolkit thread, and therefore is not
4010 * supposed to become public/user-overridable.
4011 */
4012 private Point2D calculateSecurityWarningPosition(double x, double y,
4013 double w, double h)
4014 {
4015 // The position according to the spec of SecurityWarning.setPosition()
4016 double wx = x + w * securityWarningAlignmentX + securityWarningPointX;
4017 double wy = y + h * securityWarningAlignmentY + securityWarningPointY;
4018
4019 // First, make sure the warning is not too far from the window bounds
4020 wx = Window.limit(wx,
4021 x - securityWarningWidth - 2,
4022 x + w + 2);
4023 wy = Window.limit(wy,
4024 y - securityWarningHeight - 2,
4025 y + h + 2);
4026
4027 // Now make sure the warning window is visible on the screen
4028 GraphicsConfiguration graphicsConfig =
4029 getGraphicsConfiguration_NoClientCode();
4030 Rectangle screenBounds = graphicsConfig.getBounds();
4031 Insets screenInsets =
4032 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
4033
4034 wx = Window.limit(wx,
4035 screenBounds.x + screenInsets.left,
4036 screenBounds.x + screenBounds.width - screenInsets.right
4037 - securityWarningWidth);
4038 wy = Window.limit(wy,
4039 screenBounds.y + screenInsets.top,
4040 screenBounds.y + screenBounds.height - screenInsets.bottom
4041 - securityWarningHeight);
4042
4043 return new Point2D.Double(wx, wy);
4044 }
4045
4046 static {
4047 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
4048 public float getOpacity(Window window) {
4049 return window.opacity;
4050 }
4051 public void setOpacity(Window window, float opacity) {
4052 window.setOpacity(opacity);
4053 }
4054 public Shape getShape(Window window) {
4055 return window.getShape();
4056 }
4057 public void setShape(Window window, Shape shape) {
4058 window.setShape(shape);
4059 }
4060 public void setOpaque(Window window, boolean opaque) {
4061 Color bg = window.getBackground();
4062 if (bg == null) {
4063 bg = new Color(0, 0, 0, 0);
4064 }
4065 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(),
4066 opaque ? 255 : 0));
4067 }
4068 public void updateWindow(Window window) {
4069 window.updateWindow();
4070 }
4071
4072 public Dimension getSecurityWarningSize(Window window) {
4073 return new Dimension(window.securityWarningWidth,
4074 window.securityWarningHeight);
4075 }
4076
4077 public void setSecurityWarningSize(Window window, int width, int height)
4078 {
4079 window.securityWarningWidth = width;
4080 window.securityWarningHeight = height;
4081 }
4082
4083 public void setSecurityWarningPosition(Window window,
4084 Point2D point, float alignmentX, float alignmentY)
4085 {
4086 window.securityWarningPointX = point.getX();
4087 window.securityWarningPointY = point.getY();
4088 window.securityWarningAlignmentX = alignmentX;
4089 window.securityWarningAlignmentY = alignmentY;
4090
4091 synchronized (window.getTreeLock()) {
4092 WindowPeer peer = (WindowPeer) window.peer;
4093 if (peer != null) {
4094 peer.repositionSecurityWarning();
4095 }
4096 }
4097 }
4098
4099 public Point2D calculateSecurityWarningPosition(Window window,
4100 double x, double y, double w, double h)
4101 {
4102 return window.calculateSecurityWarningPosition(x, y, w, h);
4103 }
4104
4105 public void setLWRequestStatus(Window changed, boolean status) {
4106 changed.syncLWRequests = status;
4107 }
4108
4109 public boolean isAutoRequestFocus(Window w) {
4110 return w.autoRequestFocus;
4111 }
4112
4113 public boolean isTrayIconWindow(Window w) {
4114 return w.isTrayIconWindow;
4115 }
4116
4117 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4118 w.isTrayIconWindow = isTrayIconWindow;
4119 }
4120 }); // WindowAccessor
4121 } // static
4122
4123 // a window doesn't need to be updated in the Z-order.
4124 @Override
4125 void updateZOrder() {}
4126
4127 } // class Window
4128
4129
4130 /**
4131 * This class is no longer used, but is maintained for Serialization
4132 * backward-compatibility.
4133 */
4134 class FocusManager implements java.io.Serializable {
4135 Container focusRoot;
4136 Component focusOwner;
4137
4138 /*
4139 * JDK 1.1 serialVersionUID
4140 */
4141 static final long serialVersionUID = 2491878825643557906L;
4142 }