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.DebugSettings;
57 import sun.awt.SunToolkit;
58 import sun.awt.util.IdentityArrayList;
59 import sun.java2d.pipe.Region;
60 import sun.security.action.GetPropertyAction;
61 import sun.util.logging.PlatformLogger;
62
63 /**
64 * A {@code Window} object is a top-level window with no borders and no
65 * menubar.
66 * The default layout for a window is {@code BorderLayout}.
67 * <p>
68 * A window must have either a frame, dialog, or another window defined as its
69 * owner when it's constructed.
70 * <p>
71 * In a multi-screen environment, you can create a {@code Window}
72 * on a different screen device by constructing the {@code Window}
73 * with {@link #Window(Window, GraphicsConfiguration)}. The
74 * {@code GraphicsConfiguration} object is one of the
75 * {@code GraphicsConfiguration} objects of the target screen device.
76 * <p>
77 * In a virtual device multi-screen environment in which the desktop
78 * area could span multiple physical screen devices, the bounds of all
79 * configurations are relative to the virtual device coordinate system.
80 * The origin of the virtual-coordinate system is at the upper left-hand
81 * corner of the primary physical screen. Depending on the location of
82 * the primary screen in the virtual device, negative coordinates are
83 * possible, as shown in the following figure.
84 * <p>
85 * <img src="doc-files/MultiScreen.gif"
86 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)."
87 * style="float:center; margin: 7px 10px;">
88 * <p>
89 * In such an environment, when calling {@code setLocation},
90 * you must pass a virtual coordinate to this method. Similarly,
91 * calling {@code getLocationOnScreen} on a {@code Window} returns
92 * virtual device coordinates. Call the {@code getBounds} method
93 * of a {@code GraphicsConfiguration} to find its origin in the virtual
94 * coordinate system.
95 * <p>
96 * The following code sets the location of a {@code Window}
97 * at (10, 10) relative to the origin of the physical screen
98 * of the corresponding {@code GraphicsConfiguration}. If the
99 * bounds of the {@code GraphicsConfiguration} is not taken
100 * into account, the {@code Window} location would be set
101 * at (10, 10) relative to the virtual-coordinate system and would appear
102 * on the primary physical screen, which might be different from the
103 * physical screen of the specified {@code GraphicsConfiguration}.
104 *
105 * <pre>
106 * Window w = new Window(Window owner, GraphicsConfiguration gc);
107 * Rectangle bounds = gc.getBounds();
108 * w.setLocation(10 + bounds.x, 10 + bounds.y);
109 * </pre>
110 *
111 * <p>
112 * Note: the location and size of top-level windows (including
113 * {@code Window}s, {@code Frame}s, and {@code Dialog}s)
114 * are under the control of the desktop's window management system.
115 * Calls to {@code setLocation}, {@code setSize}, and
116 * {@code setBounds} are requests (not directives) which are
117 * forwarded to the window management system. Every effort will be
118 * made to honor such requests. However, in some cases the window
119 * management system may ignore such requests, or modify the requested
120 * geometry in order to place and size the {@code Window} in a way
121 * that more closely matches the desktop settings.
122 * <p>
123 * Due to the asynchronous nature of native event handling, the results
124 * returned by {@code getBounds}, {@code getLocation},
125 * {@code getLocationOnScreen}, and {@code getSize} might not
126 * reflect the actual geometry of the Window on screen until the last
127 * request has been processed. During the processing of subsequent
128 * requests these values might change accordingly while the window
129 * management system fulfills the requests.
130 * <p>
131 * An application may set the size and location of an invisible
132 * {@code Window} arbitrarily, but the window management system may
133 * subsequently change its size and/or location when the
134 * {@code Window} is made visible. One or more {@code ComponentEvent}s
135 * will be generated to indicate the new geometry.
136 * <p>
137 * Windows are capable of generating the following WindowEvents:
138 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus.
139 *
140 * @author Sami Shaio
141 * @author Arthur van Hoff
142 * @see WindowEvent
143 * @see #addWindowListener
144 * @see java.awt.BorderLayout
145 * @since 1.0
146 */
147 public class Window extends Container implements Accessible {
148
149 /**
150 * Enumeration of available <i>window types</i>.
151 *
152 * A window type defines the generic visual appearance and behavior of a
153 * top-level window. For example, the type may affect the kind of
154 * decorations of a decorated {@code Frame} or {@code Dialog} instance.
155 * <p>
156 * Some platforms may not fully support a certain window type. Depending on
157 * the level of support, some properties of the window type may be
158 * disobeyed.
159 *
160 * @see #getType
161 * @see #setType
162 * @since 1.7
163 */
164 public static enum Type {
165 /**
166 * Represents a <i>normal</i> window.
167 *
168 * This is the default type for objects of the {@code Window} class or
169 * its descendants. Use this type for regular top-level windows.
170 */
171 NORMAL,
172
173 /**
174 * Represents a <i>utility</i> window.
175 *
176 * A utility window is usually a small window such as a toolbar or a
177 * palette. The native system may render the window with smaller
178 * title-bar if the window is either a {@code Frame} or a {@code
179 * Dialog} object, and if it has its decorations enabled.
180 */
181 UTILITY,
182
183 /**
184 * Represents a <i>popup</i> window.
185 *
186 * A popup window is a temporary window such as a drop-down menu or a
187 * tooltip. On some platforms, windows of that type may be forcibly
188 * made undecorated even if they are instances of the {@code Frame} or
189 * {@code Dialog} class, and have decorations enabled.
190 */
191 POPUP
192 }
193
194 /**
195 * This represents the warning message that is
196 * to be displayed in a non secure window. ie :
197 * a window that has a security manager installed that denies
198 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
199 * This message can be displayed anywhere in the window.
200 *
201 * @serial
202 * @see #getWarningString
203 */
204 String warningString;
205
206 /**
207 * {@code icons} is the graphical way we can
208 * represent the frames and dialogs.
209 * {@code Window} can't display icon but it's
210 * being inherited by owned {@code Dialog}s.
211 *
212 * @serial
213 * @see #getIconImages
214 * @see #setIconImages
215 */
216 transient java.util.List<Image> icons;
217
218 /**
219 * Holds the reference to the component which last had focus in this window
220 * before it lost focus.
221 */
222 private transient Component temporaryLostComponent;
223
224 static boolean systemSyncLWRequests = false;
225 boolean syncLWRequests = false;
226 transient boolean beforeFirstShow = true;
227 private transient boolean disposing = false;
228 transient WindowDisposerRecord disposerRecord = null;
229
230 static final int OPENED = 0x01;
231
232 /**
233 * An Integer value representing the Window State.
234 *
235 * @serial
236 * @since 1.2
237 * @see #show
238 */
239 int state;
240
241 /**
242 * A boolean value representing Window always-on-top state
243 * @since 1.5
244 * @serial
245 * @see #setAlwaysOnTop
246 * @see #isAlwaysOnTop
247 */
248 private boolean alwaysOnTop;
249
250 /**
251 * Contains all the windows that have a peer object associated,
252 * i. e. between addNotify() and removeNotify() calls. The list
253 * of all Window instances can be obtained from AppContext object.
254 *
255 * @since 1.6
256 */
257 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>();
258
259 /**
260 * A vector containing all the windows this
261 * window currently owns.
262 * @since 1.2
263 * @see #getOwnedWindows
264 */
265 transient Vector<WeakReference<Window>> ownedWindowList =
266 new Vector<WeakReference<Window>>();
267
268 /*
269 * We insert a weak reference into the Vector of all Windows in AppContext
270 * instead of 'this' so that garbage collection can still take place
271 * correctly.
272 */
273 private transient WeakReference<Window> weakThis;
274
275 transient boolean showWithParent;
276
277 /**
278 * Contains the modal dialog that blocks this window, or null
279 * if the window is unblocked.
280 *
281 * @since 1.6
282 */
283 transient Dialog modalBlocker;
284
285 /**
286 * @serial
287 *
288 * @see java.awt.Dialog.ModalExclusionType
289 * @see #getModalExclusionType
290 * @see #setModalExclusionType
291 *
292 * @since 1.6
293 */
294 Dialog.ModalExclusionType modalExclusionType;
295
296 transient WindowListener windowListener;
297 transient WindowStateListener windowStateListener;
298 transient WindowFocusListener windowFocusListener;
299
300 transient InputContext inputContext;
301 private transient Object inputContextLock = new Object();
302
303 /**
304 * Unused. Maintained for serialization backward-compatibility.
305 *
306 * @serial
307 * @since 1.2
308 */
309 private FocusManager focusMgr;
310
311 /**
312 * Indicates whether this Window can become the focused Window.
313 *
314 * @serial
315 * @see #getFocusableWindowState
316 * @see #setFocusableWindowState
317 * @since 1.4
318 */
319 private boolean focusableWindowState = true;
320
321 /**
322 * Indicates whether this window should receive focus on
323 * subsequently being shown (with a call to {@code setVisible(true)}), or
324 * being moved to the front (with a call to {@code toFront()}).
325 *
326 * @serial
327 * @see #setAutoRequestFocus
328 * @see #isAutoRequestFocus
329 * @since 1.7
330 */
331 private volatile boolean autoRequestFocus = true;
332
333 /*
334 * Indicates that this window is being shown. This flag is set to true at
335 * the beginning of show() and to false at the end of show().
336 *
337 * @see #show()
338 * @see Dialog#shouldBlock
339 */
340 transient boolean isInShow = false;
341
342 /**
343 * The opacity level of the window
344 *
345 * @serial
346 * @see #setOpacity(float)
347 * @see #getOpacity()
348 * @since 1.7
349 */
350 private volatile float opacity = 1.0f;
351
352 /**
353 * The shape assigned to this window. This field is set to {@code null} if
354 * no shape is set (rectangular window).
355 *
356 * @serial
357 * @see #getShape()
358 * @see #setShape(Shape)
359 * @since 1.7
360 */
361 private Shape shape = null;
362
363 private static final String base = "win";
364 private static int nameCounter = 0;
365
366 /*
367 * JDK 1.1 serialVersionUID
368 */
369 private static final long serialVersionUID = 4497834738069338734L;
370
371 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window");
372
373 private static final boolean locationByPlatformProp;
374
375 transient boolean isTrayIconWindow = false;
376
377 /**
378 * These fields are initialized in the native peer code
379 * or via AWTAccessor's WindowAccessor.
380 */
381 private transient volatile int securityWarningWidth = 0;
382 private transient volatile int securityWarningHeight = 0;
383
384 /**
385 * These fields represent the desired location for the security
386 * warning if this window is untrusted.
387 * See com.sun.awt.SecurityWarning for more details.
388 */
389 private transient double securityWarningPointX = 2.0;
390 private transient double securityWarningPointY = 0.0;
391 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT;
392 private transient float securityWarningAlignmentY = TOP_ALIGNMENT;
393
394 static {
395 /* ensure that the necessary native libraries are loaded */
396 Toolkit.loadLibraries();
397 if (!GraphicsEnvironment.isHeadless()) {
398 initIDs();
399 }
400
401 String s = java.security.AccessController.doPrivileged(
402 new GetPropertyAction("java.awt.syncLWRequests"));
403 systemSyncLWRequests = (s != null && s.equals("true"));
404 s = java.security.AccessController.doPrivileged(
405 new GetPropertyAction("java.awt.Window.locationByPlatform"));
406 locationByPlatformProp = (s != null && s.equals("true"));
407 }
408
409 /**
410 * Initialize JNI field and method IDs for fields that may be
411 accessed from C.
412 */
413 private static native void initIDs();
414
415 /**
416 * Constructs a new, initially invisible window in default size with the
417 * specified {@code GraphicsConfiguration}.
418 * <p>
419 * If there is a security manager, then it is invoked to check
420 * {@code AWTPermission("showWindowWithoutWarningBanner")}
421 * to determine whether or not the window must be displayed with
422 * a warning banner.
423 *
424 * @param gc the {@code GraphicsConfiguration} of the target screen
425 * device. If {@code gc} is {@code null}, the system default
426 * {@code GraphicsConfiguration} is assumed
427 * @exception IllegalArgumentException if {@code gc}
428 * is not from a screen device
429 * @exception HeadlessException when
430 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
431 *
432 * @see java.awt.GraphicsEnvironment#isHeadless
433 */
434 Window(GraphicsConfiguration gc) {
435 init(gc);
436 }
437
438 transient Object anchor = new Object();
439 static class WindowDisposerRecord implements sun.java2d.DisposerRecord {
440 WeakReference<Window> owner;
441 final WeakReference<Window> weakThis;
442 final WeakReference<AppContext> context;
443
444 WindowDisposerRecord(AppContext context, Window victim) {
445 weakThis = victim.weakThis;
446 this.context = new WeakReference<AppContext>(context);
447 }
448
449 public void updateOwner() {
450 Window victim = weakThis.get();
451 owner = (victim == null)
452 ? null
453 : new WeakReference<Window>(victim.getOwner());
454 }
455
456 public void dispose() {
457 if (owner != null) {
458 Window parent = owner.get();
459 if (parent != null) {
460 parent.removeOwnedWindow(weakThis);
461 }
462 }
463 AppContext ac = context.get();
464 if (null != ac) {
465 Window.removeFromWindowList(ac, weakThis);
466 }
467 }
468 }
469
470 private GraphicsConfiguration initGC(GraphicsConfiguration gc) {
471 GraphicsEnvironment.checkHeadless();
472
473 if (gc == null) {
474 gc = GraphicsEnvironment.getLocalGraphicsEnvironment().
475 getDefaultScreenDevice().getDefaultConfiguration();
476 }
477 setGraphicsConfiguration(gc);
478
479 return gc;
480 }
481
482 private void init(GraphicsConfiguration gc) {
483 GraphicsEnvironment.checkHeadless();
484
485 syncLWRequests = systemSyncLWRequests;
486
487 weakThis = new WeakReference<Window>(this);
488 addToWindowList();
489
490 setWarningString();
491 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
492 this.visible = false;
493
494 gc = initGC(gc);
495
496 if (gc.getDevice().getType() !=
497 GraphicsDevice.TYPE_RASTER_SCREEN) {
498 throw new IllegalArgumentException("not a screen device");
499 }
500 setLayout(new BorderLayout());
501
502 /* offset the initial location with the original of the screen */
503 /* and any insets */
504 Rectangle screenBounds = gc.getBounds();
505 Insets screenInsets = getToolkit().getScreenInsets(gc);
506 int x = getX() + screenBounds.x + screenInsets.left;
507 int y = getY() + screenBounds.y + screenInsets.top;
508 if (x != this.x || y != this.y) {
509 setLocation(x, y);
510 /* reset after setLocation */
511 setLocationByPlatform(locationByPlatformProp);
512 }
513
514 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
515 disposerRecord = new WindowDisposerRecord(appContext, this);
516 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
517
518 SunToolkit.checkAndSetPolicy(this);
519 }
520
521 /**
522 * Constructs a new, initially invisible window in the default size.
523 * <p>
524 * If there is a security manager set, it is invoked to check
525 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
526 * If that check fails with a {@code SecurityException} then a warning
527 * banner is created.
528 *
529 * @exception HeadlessException when
530 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
531 *
532 * @see java.awt.GraphicsEnvironment#isHeadless
533 */
534 Window() throws HeadlessException {
535 GraphicsEnvironment.checkHeadless();
536 init((GraphicsConfiguration)null);
537 }
538
539 /**
540 * Constructs a new, initially invisible window with the specified
541 * {@code Frame} as its owner. The window will not be focusable
542 * unless its owner is showing on the screen.
543 * <p>
544 * If there is a security manager set, it is invoked to check
545 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
546 * If that check fails with a {@code SecurityException} then a warning
547 * banner is created.
548 *
549 * @param owner the {@code Frame} to act as owner or {@code null}
550 * if this window has no owner
551 * @exception IllegalArgumentException if the {@code owner}'s
552 * {@code GraphicsConfiguration} is not from a screen device
553 * @exception HeadlessException when
554 * {@code GraphicsEnvironment.isHeadless} returns {@code true}
555 *
556 * @see java.awt.GraphicsEnvironment#isHeadless
557 * @see #isShowing
558 */
559 public Window(Frame owner) {
560 this(owner == null ? (GraphicsConfiguration)null :
561 owner.getGraphicsConfiguration());
562 ownedInit(owner);
563 }
564
565 /**
566 * Constructs a new, initially invisible window with the specified
567 * {@code Window} as its owner. This window will not be focusable
568 * unless its nearest owning {@code Frame} or {@code Dialog}
569 * is showing on the screen.
570 * <p>
571 * If there is a security manager set, it is invoked to check
572 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
573 * If that check fails with a {@code SecurityException} then a
574 * warning banner is created.
575 *
576 * @param owner the {@code Window} to act as owner or
577 * {@code null} if this window has no owner
578 * @exception IllegalArgumentException if the {@code owner}'s
579 * {@code GraphicsConfiguration} is not from a screen device
580 * @exception HeadlessException when
581 * {@code GraphicsEnvironment.isHeadless()} returns
582 * {@code true}
583 *
584 * @see java.awt.GraphicsEnvironment#isHeadless
585 * @see #isShowing
586 *
587 * @since 1.2
588 */
589 public Window(Window owner) {
590 this(owner == null ? (GraphicsConfiguration)null :
591 owner.getGraphicsConfiguration());
592 ownedInit(owner);
593 }
594
595 /**
596 * Constructs a new, initially invisible window with the specified owner
597 * {@code Window} and a {@code GraphicsConfiguration}
598 * of a screen device. The Window will not be focusable unless
599 * its nearest owning {@code Frame} or {@code Dialog}
600 * is showing on the screen.
601 * <p>
602 * If there is a security manager set, it is invoked to check
603 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that
604 * check fails with a {@code SecurityException} then a warning banner
605 * is created.
606 *
607 * @param owner the window to act as owner or {@code null}
608 * if this window has no owner
609 * @param gc the {@code GraphicsConfiguration} of the target
610 * screen device; if {@code gc} is {@code null},
611 * the system default {@code GraphicsConfiguration} is assumed
612 * @exception IllegalArgumentException if {@code gc}
613 * is not from a screen device
614 * @exception HeadlessException when
615 * {@code GraphicsEnvironment.isHeadless()} returns
616 * {@code true}
617 *
618 * @see java.awt.GraphicsEnvironment#isHeadless
619 * @see GraphicsConfiguration#getBounds
620 * @see #isShowing
621 * @since 1.3
622 */
623 public Window(Window owner, GraphicsConfiguration gc) {
624 this(gc);
625 ownedInit(owner);
626 }
627
628 private void ownedInit(Window owner) {
629 this.parent = owner;
630 if (owner != null) {
631 owner.addOwnedWindow(weakThis);
632 if (owner.isAlwaysOnTop()) {
633 try {
634 setAlwaysOnTop(true);
635 } catch (SecurityException ignore) {
636 }
637 }
638 }
639
640 // WindowDisposerRecord requires a proper value of parent field.
641 disposerRecord.updateOwner();
642 }
643
644 /**
645 * Construct a name for this component. Called by getName() when the
646 * name is null.
647 */
648 String constructComponentName() {
649 synchronized (Window.class) {
650 return base + nameCounter++;
651 }
652 }
653
654 /**
655 * Returns the sequence of images to be displayed as the icon for this window.
656 * <p>
657 * This method returns a copy of the internally stored list, so all operations
658 * on the returned object will not affect the window's behavior.
659 *
660 * @return the copy of icon images' list for this window, or
661 * empty list if this window doesn't have icon images.
662 * @see #setIconImages
663 * @see #setIconImage(Image)
664 * @since 1.6
665 */
666 public java.util.List<Image> getIconImages() {
667 java.util.List<Image> icons = this.icons;
668 if (icons == null || icons.size() == 0) {
669 return new ArrayList<Image>();
670 }
671 return new ArrayList<Image>(icons);
672 }
673
674 /**
675 * Sets the sequence of images to be displayed as the icon
676 * for this window. Subsequent calls to {@code getIconImages} will
677 * always return a copy of the {@code icons} list.
678 * <p>
679 * Depending on the platform capabilities one or several images
680 * of different dimensions will be used as the window's icon.
681 * <p>
682 * The {@code icons} list is scanned for the images of most
683 * appropriate dimensions from the beginning. If the list contains
684 * several images of the same size, the first will be used.
685 * <p>
686 * Ownerless windows with no icon specified use platform-default icon.
687 * The icon of an owned window may be inherited from the owner
688 * unless explicitly overridden.
689 * Setting the icon to {@code null} or empty list restores
690 * the default behavior.
691 * <p>
692 * Note : Native windowing systems may use different images of differing
693 * dimensions to represent a window, depending on the context (e.g.
694 * window decoration, window list, taskbar, etc.). They could also use
695 * just a single image for all contexts or no image at all.
696 *
697 * @param icons the list of icon images to be displayed.
698 * @see #getIconImages()
699 * @see #setIconImage(Image)
700 * @since 1.6
701 */
702 public synchronized void setIconImages(java.util.List<? extends Image> icons) {
703 this.icons = (icons == null) ? new ArrayList<Image>() :
704 new ArrayList<Image>(icons);
705 WindowPeer peer = (WindowPeer)this.peer;
706 if (peer != null) {
707 peer.updateIconImages();
708 }
709 // Always send a property change event
710 firePropertyChange("iconImage", null, null);
711 }
712
713 /**
714 * Sets the image to be displayed as the icon for this window.
715 * <p>
716 * This method can be used instead of {@link #setIconImages setIconImages()}
717 * to specify a single image as a window's icon.
718 * <p>
719 * The following statement:
720 * <pre>
721 * setIconImage(image);
722 * </pre>
723 * is equivalent to:
724 * <pre>
725 * ArrayList<Image> imageList = new ArrayList<Image>();
726 * imageList.add(image);
727 * setIconImages(imageList);
728 * </pre>
729 * <p>
730 * Note : Native windowing systems may use different images of differing
731 * dimensions to represent a window, depending on the context (e.g.
732 * window decoration, window list, taskbar, etc.). They could also use
733 * just a single image for all contexts or no image at all.
734 *
735 * @param image the icon image to be displayed.
736 * @see #setIconImages
737 * @see #getIconImages()
738 * @since 1.6
739 */
740 public void setIconImage(Image image) {
741 ArrayList<Image> imageList = new ArrayList<Image>();
742 if (image != null) {
743 imageList.add(image);
744 }
745 setIconImages(imageList);
746 }
747
748 /**
749 * Makes this Window displayable by creating the connection to its
750 * native screen resource.
751 * This method is called internally by the toolkit and should
752 * not be called directly by programs.
753 * @see Component#isDisplayable
754 * @see Container#removeNotify
755 * @since 1.0
756 */
757 public void addNotify() {
758 synchronized (getTreeLock()) {
759 Container parent = this.parent;
760 if (parent != null && parent.peer == null) {
761 parent.addNotify();
762 }
763 if (peer == null) {
764 peer = getComponentFactory().createWindow(this);
765 }
766 synchronized (allWindows) {
767 allWindows.add(this);
768 }
769 super.addNotify();
770 }
771 }
772
773 /**
774 * {@inheritDoc}
775 */
776 public void removeNotify() {
777 synchronized (getTreeLock()) {
778 synchronized (allWindows) {
779 allWindows.remove(this);
780 }
781 super.removeNotify();
782 }
783 }
784
785 /**
786 * Causes this Window to be sized to fit the preferred size
787 * and layouts of its subcomponents. The resulting width and
788 * height of the window are automatically enlarged if either
789 * of dimensions is less than the minimum size as specified
790 * by the previous call to the {@code setMinimumSize} method.
791 * <p>
792 * If the window and/or its owner are not displayable yet,
793 * both of them are made displayable before calculating
794 * the preferred size. The Window is validated after its
795 * size is being calculated.
796 *
797 * @see Component#isDisplayable
798 * @see #setMinimumSize
799 */
800 @SuppressWarnings("deprecation")
801 public void pack() {
802 Container parent = this.parent;
803 if (parent != null && parent.peer == null) {
804 parent.addNotify();
805 }
806 if (peer == null) {
807 addNotify();
808 }
809 Dimension newSize = getPreferredSize();
810 if (peer != null) {
811 setClientSize(newSize.width, newSize.height);
812 }
813
814 if(beforeFirstShow) {
815 isPacked = true;
816 }
817
818 validateUnconditionally();
819 }
820
821 /**
822 * Sets the minimum size of this window to a constant
823 * value. Subsequent calls to {@code getMinimumSize}
824 * will always return this value. If current window's
825 * size is less than {@code minimumSize} the size of the
826 * window is automatically enlarged to honor the minimum size.
827 * <p>
828 * If the {@code setSize} or {@code setBounds} methods
829 * are called afterwards with a width or height less than
830 * that was specified by the {@code setMinimumSize} method
831 * the window is automatically enlarged to meet
832 * the {@code minimumSize} value. The {@code minimumSize}
833 * value also affects the behaviour of the {@code pack} method.
834 * <p>
835 * The default behavior is restored by setting the minimum size
836 * parameter to the {@code null} value.
837 * <p>
838 * Resizing operation may be restricted if the user tries
839 * to resize window below the {@code minimumSize} value.
840 * This behaviour is platform-dependent.
841 *
842 * @param minimumSize the new minimum size of this window
843 * @see Component#setMinimumSize
844 * @see #getMinimumSize
845 * @see #isMinimumSizeSet
846 * @see #setSize(Dimension)
847 * @see #pack
848 * @since 1.6
849 */
850 public void setMinimumSize(Dimension minimumSize) {
851 synchronized (getTreeLock()) {
852 super.setMinimumSize(minimumSize);
853 Dimension size = getSize();
854 if (isMinimumSizeSet()) {
855 if (size.width < minimumSize.width || size.height < minimumSize.height) {
856 int nw = Math.max(width, minimumSize.width);
857 int nh = Math.max(height, minimumSize.height);
858 setSize(nw, nh);
859 }
860 }
861 if (peer != null) {
862 ((WindowPeer)peer).updateMinimumSize();
863 }
864 }
865 }
866
867 /**
868 * {@inheritDoc}
869 * <p>
870 * The {@code d.width} and {@code d.height} values
871 * are automatically enlarged if either is less than
872 * the minimum size as specified by previous call to
873 * {@code setMinimumSize}.
874 * <p>
875 * The method changes the geometry-related data. Therefore,
876 * the native windowing system may ignore such requests, or it may modify
877 * the requested data, so that the {@code Window} object is placed and sized
878 * in a way that corresponds closely to the desktop settings.
879 *
880 * @see #getSize
881 * @see #setBounds
882 * @see #setMinimumSize
883 * @since 1.6
884 */
885 public void setSize(Dimension d) {
886 super.setSize(d);
887 }
888
889 /**
890 * {@inheritDoc}
891 * <p>
892 * The {@code width} and {@code height} values
893 * are automatically enlarged if either is less than
894 * the minimum size as specified by previous call to
895 * {@code setMinimumSize}.
896 * <p>
897 * The method changes the geometry-related data. Therefore,
898 * the native windowing system may ignore such requests, or it may modify
899 * the requested data, so that the {@code Window} object is placed and sized
900 * in a way that corresponds closely to the desktop settings.
901 *
902 * @see #getSize
903 * @see #setBounds
904 * @see #setMinimumSize
905 * @since 1.6
906 */
907 public void setSize(int width, int height) {
908 super.setSize(width, height);
909 }
910
911 /**
912 * {@inheritDoc}
913 * <p>
914 * The method changes the geometry-related data. Therefore,
915 * the native windowing system may ignore such requests, or it may modify
916 * the requested data, so that the {@code Window} object is placed and sized
917 * in a way that corresponds closely to the desktop settings.
918 */
919 @Override
920 public void setLocation(int x, int y) {
921 super.setLocation(x, y);
922 }
923
924 /**
925 * {@inheritDoc}
926 * <p>
927 * The method changes the geometry-related data. Therefore,
928 * the native windowing system may ignore such requests, or it may modify
929 * the requested data, so that the {@code Window} object is placed and sized
930 * in a way that corresponds closely to the desktop settings.
931 */
932 @Override
933 public void setLocation(Point p) {
934 super.setLocation(p);
935 }
936
937 /**
938 * @deprecated As of JDK version 1.1,
939 * replaced by {@code setBounds(int, int, int, int)}.
940 */
941 @Deprecated
942 public void reshape(int x, int y, int width, int height) {
943 if (isMinimumSizeSet()) {
944 Dimension minSize = getMinimumSize();
945 if (width < minSize.width) {
946 width = minSize.width;
947 }
948 if (height < minSize.height) {
949 height = minSize.height;
950 }
951 }
952 super.reshape(x, y, width, height);
953 }
954
955 void setClientSize(int w, int h) {
956 synchronized (getTreeLock()) {
957 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE);
958 setBounds(x, y, w, h);
959 }
960 }
961
962 private static final AtomicBoolean
963 beforeFirstWindowShown = new AtomicBoolean(true);
964
965 final void closeSplashScreen() {
966 if (isTrayIconWindow) {
967 return;
968 }
969 if (beforeFirstWindowShown.getAndSet(false)) {
970 // We don't use SplashScreen.getSplashScreen() to avoid instantiating
971 // the object if it hasn't been requested by user code explicitly
972 SunToolkit.closeSplashScreen();
973 SplashScreen.markClosed();
974 }
975 }
976
977 /**
978 * Shows or hides this {@code Window} depending on the value of parameter
979 * {@code b}.
980 * <p>
981 * If the method shows the window then the window is also made
982 * focused under the following conditions:
983 * <ul>
984 * <li> The {@code Window} meets the requirements outlined in the
985 * {@link #isFocusableWindow} method.
986 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value.
987 * <li> Native windowing system allows the {@code Window} to get focused.
988 * </ul>
989 * There is an exception for the second condition (the value of the
990 * {@code autoRequestFocus} property). The property is not taken into account if the
991 * window is a modal dialog, which blocks the currently focused window.
992 * <p>
993 * Developers must never assume that the window is the focused or active window
994 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event.
995 * @param b if {@code true}, makes the {@code Window} visible,
996 * otherwise hides the {@code Window}.
997 * If the {@code Window} and/or its owner
998 * are not yet displayable, both are made displayable. The
999 * {@code Window} will be validated prior to being made visible.
1000 * If the {@code Window} is already visible, this will bring the
1001 * {@code Window} to the front.<p>
1002 * If {@code false}, hides this {@code Window}, its subcomponents, and all
1003 * of its owned children.
1004 * The {@code Window} and its subcomponents can be made visible again
1005 * with a call to {@code #setVisible(true)}.
1006 * @see java.awt.Component#isDisplayable
1007 * @see java.awt.Component#setVisible
1008 * @see java.awt.Window#toFront
1009 * @see java.awt.Window#dispose
1010 * @see java.awt.Window#setAutoRequestFocus
1011 * @see java.awt.Window#isFocusableWindow
1012 */
1013 public void setVisible(boolean b) {
1014 super.setVisible(b);
1015 }
1016
1017 /**
1018 * Makes the Window visible. If the Window and/or its owner
1019 * are not yet displayable, both are made displayable. The
1020 * Window will be validated prior to being made visible.
1021 * If the Window is already visible, this will bring the Window
1022 * to the front.
1023 * @see Component#isDisplayable
1024 * @see #toFront
1025 * @deprecated As of JDK version 1.5, replaced by
1026 * {@link #setVisible(boolean)}.
1027 */
1028 @Deprecated
1029 public void show() {
1030 if (peer == null) {
1031 addNotify();
1032 }
1033 validateUnconditionally();
1034
1035 isInShow = true;
1036 if (visible) {
1037 toFront();
1038 } else {
1039 beforeFirstShow = false;
1040 closeSplashScreen();
1041 Dialog.checkShouldBeBlocked(this);
1042 super.show();
1043 locationByPlatform = false;
1044 for (int i = 0; i < ownedWindowList.size(); i++) {
1045 Window child = ownedWindowList.elementAt(i).get();
1046 if ((child != null) && child.showWithParent) {
1047 child.show();
1048 child.showWithParent = false;
1049 } // endif
1050 } // endfor
1051 if (!isModalBlocked()) {
1052 updateChildrenBlocking();
1053 } else {
1054 // fix for 6532736: after this window is shown, its blocker
1055 // should be raised to front
1056 modalBlocker.toFront_NoClientCode();
1057 }
1058 if (this instanceof Frame || this instanceof Dialog) {
1059 updateChildFocusableWindowState(this);
1060 }
1061 }
1062 isInShow = false;
1063
1064 // If first time shown, generate WindowOpened event
1065 if ((state & OPENED) == 0) {
1066 postWindowEvent(WindowEvent.WINDOW_OPENED);
1067 state |= OPENED;
1068 }
1069 }
1070
1071 static void updateChildFocusableWindowState(Window w) {
1072 if (w.peer != null && w.isShowing()) {
1073 ((WindowPeer)w.peer).updateFocusableWindowState();
1074 }
1075 for (int i = 0; i < w.ownedWindowList.size(); i++) {
1076 Window child = w.ownedWindowList.elementAt(i).get();
1077 if (child != null) {
1078 updateChildFocusableWindowState(child);
1079 }
1080 }
1081 }
1082
1083 synchronized void postWindowEvent(int id) {
1084 if (windowListener != null
1085 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0
1086 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) {
1087 WindowEvent e = new WindowEvent(this, id);
1088 Toolkit.getEventQueue().postEvent(e);
1089 }
1090 }
1091
1092 /**
1093 * Hide this Window, its subcomponents, and all of its owned children.
1094 * The Window and its subcomponents can be made visible again
1095 * with a call to {@code show}.
1096 * @see #show
1097 * @see #dispose
1098 * @deprecated As of JDK version 1.5, replaced by
1099 * {@link #setVisible(boolean)}.
1100 */
1101 @Deprecated
1102 public void hide() {
1103 synchronized(ownedWindowList) {
1104 for (int i = 0; i < ownedWindowList.size(); i++) {
1105 Window child = ownedWindowList.elementAt(i).get();
1106 if ((child != null) && child.visible) {
1107 child.hide();
1108 child.showWithParent = true;
1109 }
1110 }
1111 }
1112 if (isModalBlocked()) {
1113 modalBlocker.unblockWindow(this);
1114 }
1115 super.hide();
1116 locationByPlatform = false;
1117 }
1118
1119 final void clearMostRecentFocusOwnerOnHide() {
1120 /* do nothing */
1121 }
1122
1123 /**
1124 * Releases all of the native screen resources used by this
1125 * {@code Window}, its subcomponents, and all of its owned
1126 * children. That is, the resources for these {@code Component}s
1127 * will be destroyed, any memory they consume will be returned to the
1128 * OS, and they will be marked as undisplayable.
1129 * <p>
1130 * The {@code Window} and its subcomponents can be made displayable
1131 * again by rebuilding the native resources with a subsequent call to
1132 * {@code pack} or {@code show}. The states of the recreated
1133 * {@code Window} and its subcomponents will be identical to the
1134 * states of these objects at the point where the {@code Window}
1135 * was disposed (not accounting for additional modifications between
1136 * those actions).
1137 * <p>
1138 * <b>Note</b>: When the last displayable window
1139 * within the Java virtual machine (VM) is disposed of, the VM may
1140 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown">
1141 * AWT Threading Issues</a> for more information.
1142 * @see Component#isDisplayable
1143 * @see #pack
1144 * @see #show
1145 */
1146 public void dispose() {
1147 doDispose();
1148 }
1149
1150 /*
1151 * Fix for 4872170.
1152 * If dispose() is called on parent then its children have to be disposed as well
1153 * as reported in javadoc. So we need to implement this functionality even if a
1154 * child overrides dispose() in a wrong way without calling super.dispose().
1155 */
1156 void disposeImpl() {
1157 dispose();
1158 if (peer != null) {
1159 doDispose();
1160 }
1161 }
1162
1163 void doDispose() {
1164 class DisposeAction implements Runnable {
1165 public void run() {
1166 disposing = true;
1167 try {
1168 // Check if this window is the fullscreen window for the
1169 // device. Exit the fullscreen mode prior to disposing
1170 // of the window if that's the case.
1171 GraphicsDevice gd = getGraphicsConfiguration().getDevice();
1172 if (gd.getFullScreenWindow() == Window.this) {
1173 gd.setFullScreenWindow(null);
1174 }
1175
1176 Object[] ownedWindowArray;
1177 synchronized(ownedWindowList) {
1178 ownedWindowArray = new Object[ownedWindowList.size()];
1179 ownedWindowList.copyInto(ownedWindowArray);
1180 }
1181 for (int i = 0; i < ownedWindowArray.length; i++) {
1182 Window child = (Window) (((WeakReference)
1183 (ownedWindowArray[i])).get());
1184 if (child != null) {
1185 child.disposeImpl();
1186 }
1187 }
1188 hide();
1189 beforeFirstShow = true;
1190 removeNotify();
1191 synchronized (inputContextLock) {
1192 if (inputContext != null) {
1193 inputContext.dispose();
1194 inputContext = null;
1195 }
1196 }
1197 clearCurrentFocusCycleRootOnHide();
1198 } finally {
1199 disposing = false;
1200 }
1201 }
1202 }
1203 boolean fireWindowClosedEvent = isDisplayable();
1204 DisposeAction action = new DisposeAction();
1205 if (EventQueue.isDispatchThread()) {
1206 action.run();
1207 }
1208 else {
1209 try {
1210 EventQueue.invokeAndWait(this, action);
1211 }
1212 catch (InterruptedException e) {
1213 System.err.println("Disposal was interrupted:");
1214 e.printStackTrace();
1215 }
1216 catch (InvocationTargetException e) {
1217 System.err.println("Exception during disposal:");
1218 e.printStackTrace();
1219 }
1220 }
1221 // Execute outside the Runnable because postWindowEvent is
1222 // synchronized on (this). We don't need to synchronize the call
1223 // on the EventQueue anyways.
1224 if (fireWindowClosedEvent) {
1225 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1226 }
1227 }
1228
1229 /*
1230 * Should only be called while holding the tree lock.
1231 * It's overridden here because parent == owner in Window,
1232 * and we shouldn't adjust counter on owner
1233 */
1234 void adjustListeningChildrenOnParent(long mask, int num) {
1235 }
1236
1237 // Should only be called while holding tree lock
1238 void adjustDescendantsOnParent(int num) {
1239 // do nothing since parent == owner and we shouldn't
1240 // adjust counter on owner
1241 }
1242
1243 /**
1244 * If this Window is visible, brings this Window to the front and may make
1245 * it the focused Window.
1246 * <p>
1247 * Places this Window at the top of the stacking order and shows it in
1248 * front of any other Windows in this VM. No action will take place if this
1249 * Window is not visible. Some platforms do not allow Windows which own
1250 * other Windows to appear on top of those owned Windows. Some platforms
1251 * may not permit this VM to place its Windows above windows of native
1252 * applications, or Windows of other VMs. This permission may depend on
1253 * whether a Window in this VM is already focused. Every attempt will be
1254 * made to move this Window as high as possible in the stacking order;
1255 * however, developers should not assume that this method will move this
1256 * Window above all other windows in every situation.
1257 * <p>
1258 * Developers must never assume that this Window is the focused or active
1259 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1260 * event. On platforms where the top-most window is the focused window, this
1261 * method will <b>probably</b> focus this Window (if it is not already focused)
1262 * under the following conditions:
1263 * <ul>
1264 * <li> The window meets the requirements outlined in the
1265 * {@link #isFocusableWindow} method.
1266 * <li> The window's property {@code autoRequestFocus} is of the
1267 * {@code true} value.
1268 * <li> Native windowing system allows the window to get focused.
1269 * </ul>
1270 * On platforms where the stacking order does not typically affect the focused
1271 * window, this method will <b>probably</b> leave the focused and active
1272 * Windows unchanged.
1273 * <p>
1274 * If this method causes this Window to be focused, and this Window is a
1275 * Frame or a Dialog, it will also become activated. If this Window is
1276 * focused, but it is not a Frame or a Dialog, then the first Frame or
1277 * Dialog that is an owner of this Window will be activated.
1278 * <p>
1279 * If this window is blocked by modal dialog, then the blocking dialog
1280 * is brought to the front and remains above the blocked window.
1281 *
1282 * @see #toBack
1283 * @see #setAutoRequestFocus
1284 * @see #isFocusableWindow
1285 */
1286 public void toFront() {
1287 toFront_NoClientCode();
1288 }
1289
1290 // This functionality is implemented in a final package-private method
1291 // to insure that it cannot be overridden by client subclasses.
1292 final void toFront_NoClientCode() {
1293 if (visible) {
1294 WindowPeer peer = (WindowPeer)this.peer;
1295 if (peer != null) {
1296 peer.toFront();
1297 }
1298 if (isModalBlocked()) {
1299 modalBlocker.toFront_NoClientCode();
1300 }
1301 }
1302 }
1303
1304 /**
1305 * If this Window is visible, sends this Window to the back and may cause
1306 * it to lose focus or activation if it is the focused or active Window.
1307 * <p>
1308 * Places this Window at the bottom of the stacking order and shows it
1309 * behind any other Windows in this VM. No action will take place is this
1310 * Window is not visible. Some platforms do not allow Windows which are
1311 * owned by other Windows to appear below their owners. Every attempt will
1312 * be made to move this Window as low as possible in the stacking order;
1313 * however, developers should not assume that this method will move this
1314 * Window below all other windows in every situation.
1315 * <p>
1316 * Because of variations in native windowing systems, no guarantees about
1317 * changes to the focused and active Windows can be made. Developers must
1318 * never assume that this Window is no longer the focused or active Window
1319 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1320 * event. On platforms where the top-most window is the focused window,
1321 * this method will <b>probably</b> cause this Window to lose focus. In
1322 * that case, the next highest, focusable Window in this VM will receive
1323 * focus. On platforms where the stacking order does not typically affect
1324 * the focused window, this method will <b>probably</b> leave the focused
1325 * and active Windows unchanged.
1326 *
1327 * @see #toFront
1328 */
1329 public void toBack() {
1330 toBack_NoClientCode();
1331 }
1332
1333 // This functionality is implemented in a final package-private method
1334 // to insure that it cannot be overridden by client subclasses.
1335 final void toBack_NoClientCode() {
1336 if(isAlwaysOnTop()) {
1337 try {
1338 setAlwaysOnTop(false);
1339 }catch(SecurityException e) {
1340 }
1341 }
1342 if (visible) {
1343 WindowPeer peer = (WindowPeer)this.peer;
1344 if (peer != null) {
1345 peer.toBack();
1346 }
1347 }
1348 }
1349
1350 /**
1351 * Returns the toolkit of this frame.
1352 * @return the toolkit of this window.
1353 * @see Toolkit
1354 * @see Toolkit#getDefaultToolkit
1355 * @see Component#getToolkit
1356 */
1357 public Toolkit getToolkit() {
1358 return Toolkit.getDefaultToolkit();
1359 }
1360
1361 /**
1362 * Gets the warning string that is displayed with this window.
1363 * If this window is insecure, the warning string is displayed
1364 * somewhere in the visible area of the window. A window is
1365 * insecure if there is a security manager and the security
1366 * manager denies
1367 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
1368 * <p>
1369 * If the window is secure, then {@code getWarningString}
1370 * returns {@code null}. If the window is insecure, this
1371 * method checks for the system property
1372 * {@code awt.appletWarning}
1373 * and returns the string value of that property.
1374 * @return the warning string for this window.
1375 */
1376 public final String getWarningString() {
1377 return warningString;
1378 }
1379
1380 private void setWarningString() {
1381 warningString = null;
1382 SecurityManager sm = System.getSecurityManager();
1383 if (sm != null) {
1384 try {
1385 sm.checkPermission(AWTPermissions.TOPLEVEL_WINDOW_PERMISSION);
1386 } catch (SecurityException se) {
1387 // make sure the privileged action is only
1388 // for getting the property! We don't want the
1389 // above checkPermission call to always succeed!
1390 warningString = AccessController.doPrivileged(
1391 new GetPropertyAction("awt.appletWarning",
1392 "Java Applet Window"));
1393 }
1394 }
1395 }
1396
1397 /**
1398 * Gets the {@code Locale} object that is associated
1399 * with this window, if the locale has been set.
1400 * If no locale has been set, then the default locale
1401 * is returned.
1402 * @return the locale that is set for this window.
1403 * @see java.util.Locale
1404 * @since 1.1
1405 */
1406 public Locale getLocale() {
1407 if (this.locale == null) {
1408 return Locale.getDefault();
1409 }
1410 return this.locale;
1411 }
1412
1413 /**
1414 * Gets the input context for this window. A window always has an input context,
1415 * which is shared by subcomponents unless they create and set their own.
1416 * @see Component#getInputContext
1417 * @since 1.2
1418 */
1419 public InputContext getInputContext() {
1420 synchronized (inputContextLock) {
1421 if (inputContext == null) {
1422 inputContext = InputContext.getInstance();
1423 }
1424 }
1425 return inputContext;
1426 }
1427
1428 /**
1429 * Set the cursor image to a specified cursor.
1430 * <p>
1431 * The method may have no visual effect if the Java platform
1432 * implementation and/or the native system do not support
1433 * changing the mouse cursor shape.
1434 * @param cursor One of the constants defined
1435 * by the {@code Cursor} class. If this parameter is null
1436 * then the cursor for this window will be set to the type
1437 * Cursor.DEFAULT_CURSOR.
1438 * @see Component#getCursor
1439 * @see Cursor
1440 * @since 1.1
1441 */
1442 public void setCursor(Cursor cursor) {
1443 if (cursor == null) {
1444 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1445 }
1446 super.setCursor(cursor);
1447 }
1448
1449 /**
1450 * Returns the owner of this window.
1451 *
1452 * @return the owner of this window
1453 * @since 1.2
1454 */
1455 public Window getOwner() {
1456 return getOwner_NoClientCode();
1457 }
1458 final Window getOwner_NoClientCode() {
1459 return (Window)parent;
1460 }
1461
1462 /**
1463 * Return an array containing all the windows this
1464 * window currently owns.
1465 *
1466 * @return the array of all the owned windows
1467 * @since 1.2
1468 */
1469 public Window[] getOwnedWindows() {
1470 return getOwnedWindows_NoClientCode();
1471 }
1472 final Window[] getOwnedWindows_NoClientCode() {
1473 Window realCopy[];
1474
1475 synchronized(ownedWindowList) {
1476 // Recall that ownedWindowList is actually a Vector of
1477 // WeakReferences and calling get() on one of these references
1478 // may return null. Make two arrays-- one the size of the
1479 // Vector (fullCopy with size fullSize), and one the size of
1480 // all non-null get()s (realCopy with size realSize).
1481 int fullSize = ownedWindowList.size();
1482 int realSize = 0;
1483 Window fullCopy[] = new Window[fullSize];
1484
1485 for (int i = 0; i < fullSize; i++) {
1486 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1487
1488 if (fullCopy[realSize] != null) {
1489 realSize++;
1490 }
1491 }
1492
1493 if (fullSize != realSize) {
1494 realCopy = Arrays.copyOf(fullCopy, realSize);
1495 } else {
1496 realCopy = fullCopy;
1497 }
1498 }
1499
1500 return realCopy;
1501 }
1502
1503 boolean isModalBlocked() {
1504 return modalBlocker != null;
1505 }
1506
1507 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1508 this.modalBlocker = blocked ? blocker : null;
1509 if (peerCall) {
1510 WindowPeer peer = (WindowPeer)this.peer;
1511 if (peer != null) {
1512 peer.setModalBlocked(blocker, blocked);
1513 }
1514 }
1515 }
1516
1517 Dialog getModalBlocker() {
1518 return modalBlocker;
1519 }
1520
1521 /*
1522 * Returns a list of all displayable Windows, i. e. all the
1523 * Windows which peer is not null.
1524 *
1525 * @see #addNotify
1526 * @see #removeNotify
1527 */
1528 static IdentityArrayList<Window> getAllWindows() {
1529 synchronized (allWindows) {
1530 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1531 v.addAll(allWindows);
1532 return v;
1533 }
1534 }
1535
1536 static IdentityArrayList<Window> getAllUnblockedWindows() {
1537 synchronized (allWindows) {
1538 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1539 for (int i = 0; i < allWindows.size(); i++) {
1540 Window w = allWindows.get(i);
1541 if (!w.isModalBlocked()) {
1542 unblocked.add(w);
1543 }
1544 }
1545 return unblocked;
1546 }
1547 }
1548
1549 private static Window[] getWindows(AppContext appContext) {
1550 synchronized (Window.class) {
1551 Window realCopy[];
1552 @SuppressWarnings("unchecked")
1553 Vector<WeakReference<Window>> windowList =
1554 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1555 if (windowList != null) {
1556 int fullSize = windowList.size();
1557 int realSize = 0;
1558 Window fullCopy[] = new Window[fullSize];
1559 for (int i = 0; i < fullSize; i++) {
1560 Window w = windowList.get(i).get();
1561 if (w != null) {
1562 fullCopy[realSize++] = w;
1563 }
1564 }
1565 if (fullSize != realSize) {
1566 realCopy = Arrays.copyOf(fullCopy, realSize);
1567 } else {
1568 realCopy = fullCopy;
1569 }
1570 } else {
1571 realCopy = new Window[0];
1572 }
1573 return realCopy;
1574 }
1575 }
1576
1577 /**
1578 * Returns an array of all {@code Window}s, both owned and ownerless,
1579 * created by this application.
1580 * If called from an applet, the array includes only the {@code Window}s
1581 * accessible by that applet.
1582 * <p>
1583 * <b>Warning:</b> this method may return system created windows, such
1584 * as a print dialog. Applications should not assume the existence of
1585 * these dialogs, nor should an application assume anything about these
1586 * dialogs such as component positions, {@code LayoutManager}s
1587 * or serialization.
1588 *
1589 * @return the array of all the {@code Window}s created by the application
1590 * @see Frame#getFrames
1591 * @see Window#getOwnerlessWindows
1592 *
1593 * @since 1.6
1594 */
1595 public static Window[] getWindows() {
1596 return getWindows(AppContext.getAppContext());
1597 }
1598
1599 /**
1600 * Returns an array of all {@code Window}s created by this application
1601 * that have no owner. They include {@code Frame}s and ownerless
1602 * {@code Dialog}s and {@code Window}s.
1603 * If called from an applet, the array includes only the {@code Window}s
1604 * accessible by that applet.
1605 * <p>
1606 * <b>Warning:</b> this method may return system created windows, such
1607 * as a print dialog. Applications should not assume the existence of
1608 * these dialogs, nor should an application assume anything about these
1609 * dialogs such as component positions, {@code LayoutManager}s
1610 * or serialization.
1611 *
1612 * @return the array of all the ownerless {@code Window}s
1613 * created by this application
1614 * @see Frame#getFrames
1615 * @see Window#getWindows()
1616 *
1617 * @since 1.6
1618 */
1619 public static Window[] getOwnerlessWindows() {
1620 Window[] allWindows = Window.getWindows();
1621
1622 int ownerlessCount = 0;
1623 for (Window w : allWindows) {
1624 if (w.getOwner() == null) {
1625 ownerlessCount++;
1626 }
1627 }
1628
1629 Window[] ownerless = new Window[ownerlessCount];
1630 int c = 0;
1631 for (Window w : allWindows) {
1632 if (w.getOwner() == null) {
1633 ownerless[c++] = w;
1634 }
1635 }
1636
1637 return ownerless;
1638 }
1639
1640 Window getDocumentRoot() {
1641 synchronized (getTreeLock()) {
1642 Window w = this;
1643 while (w.getOwner() != null) {
1644 w = w.getOwner();
1645 }
1646 return w;
1647 }
1648 }
1649
1650 /**
1651 * Specifies the modal exclusion type for this window. If a window is modal
1652 * excluded, it is not blocked by some modal dialogs. See {@link
1653 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1654 * possible modal exclusion types.
1655 * <p>
1656 * If the given type is not supported, {@code NO_EXCLUDE} is used.
1657 * <p>
1658 * Note: changing the modal exclusion type for a visible window may have no
1659 * effect until it is hidden and then shown again.
1660 *
1661 * @param exclusionType the modal exclusion type for this window; a {@code null}
1662 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1663 * NO_EXCLUDE}
1664 * @throws SecurityException if the calling thread does not have permission
1665 * to set the modal exclusion property to the window with the given
1666 * {@code exclusionType}
1667 * @see java.awt.Dialog.ModalExclusionType
1668 * @see java.awt.Window#getModalExclusionType
1669 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1670 *
1671 * @since 1.6
1672 */
1673 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1674 if (exclusionType == null) {
1675 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1676 }
1677 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1678 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1679 }
1680 if (modalExclusionType == exclusionType) {
1681 return;
1682 }
1683 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1684 SecurityManager sm = System.getSecurityManager();
1685 if (sm != null) {
1686 sm.checkPermission(AWTPermissions.TOOLKIT_MODALITY_PERMISSION);
1687 }
1688 }
1689 modalExclusionType = exclusionType;
1690
1691 // if we want on-fly changes, we need to uncomment the lines below
1692 // and override the method in Dialog to use modalShow() instead
1693 // of updateChildrenBlocking()
1694 /*
1695 if (isModalBlocked()) {
1696 modalBlocker.unblockWindow(this);
1697 }
1698 Dialog.checkShouldBeBlocked(this);
1699 updateChildrenBlocking();
1700 */
1701 }
1702
1703 /**
1704 * Returns the modal exclusion type of this window.
1705 *
1706 * @return the modal exclusion type of this window
1707 *
1708 * @see java.awt.Dialog.ModalExclusionType
1709 * @see java.awt.Window#setModalExclusionType
1710 *
1711 * @since 1.6
1712 */
1713 public Dialog.ModalExclusionType getModalExclusionType() {
1714 return modalExclusionType;
1715 }
1716
1717 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1718 if ((modalExclusionType != null) &&
1719 modalExclusionType.compareTo(exclusionType) >= 0)
1720 {
1721 return true;
1722 }
1723 Window owner = getOwner_NoClientCode();
1724 return (owner != null) && owner.isModalExcluded(exclusionType);
1725 }
1726
1727 void updateChildrenBlocking() {
1728 Vector<Window> childHierarchy = new Vector<Window>();
1729 Window[] ownedWindows = getOwnedWindows();
1730 for (int i = 0; i < ownedWindows.length; i++) {
1731 childHierarchy.add(ownedWindows[i]);
1732 }
1733 int k = 0;
1734 while (k < childHierarchy.size()) {
1735 Window w = childHierarchy.get(k);
1736 if (w.isVisible()) {
1737 if (w.isModalBlocked()) {
1738 Dialog blocker = w.getModalBlocker();
1739 blocker.unblockWindow(w);
1740 }
1741 Dialog.checkShouldBeBlocked(w);
1742 Window[] wOwned = w.getOwnedWindows();
1743 for (int j = 0; j < wOwned.length; j++) {
1744 childHierarchy.add(wOwned[j]);
1745 }
1746 }
1747 k++;
1748 }
1749 }
1750
1751 /**
1752 * Adds the specified window listener to receive window events from
1753 * this window.
1754 * If l is null, no exception is thrown and no action is performed.
1755 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1756 * >AWT Threading Issues</a> for details on AWT's threading model.
1757 *
1758 * @param l the window listener
1759 * @see #removeWindowListener
1760 * @see #getWindowListeners
1761 */
1762 public synchronized void addWindowListener(WindowListener l) {
1763 if (l == null) {
1764 return;
1765 }
1766 newEventsOnly = true;
1767 windowListener = AWTEventMulticaster.add(windowListener, l);
1768 }
1769
1770 /**
1771 * Adds the specified window state listener to receive window
1772 * events from this window. If {@code l} is {@code null},
1773 * no exception is thrown and no action is performed.
1774 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1775 * >AWT Threading Issues</a> for details on AWT's threading model.
1776 *
1777 * @param l the window state listener
1778 * @see #removeWindowStateListener
1779 * @see #getWindowStateListeners
1780 * @since 1.4
1781 */
1782 public synchronized void addWindowStateListener(WindowStateListener l) {
1783 if (l == null) {
1784 return;
1785 }
1786 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1787 newEventsOnly = true;
1788 }
1789
1790 /**
1791 * Adds the specified window focus listener to receive window events
1792 * from this window.
1793 * If l is null, no exception is thrown and no action is performed.
1794 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1795 * >AWT Threading Issues</a> for details on AWT's threading model.
1796 *
1797 * @param l the window focus listener
1798 * @see #removeWindowFocusListener
1799 * @see #getWindowFocusListeners
1800 * @since 1.4
1801 */
1802 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1803 if (l == null) {
1804 return;
1805 }
1806 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1807 newEventsOnly = true;
1808 }
1809
1810 /**
1811 * Removes the specified window listener so that it no longer
1812 * receives window events from this window.
1813 * If l is null, no exception is thrown and no action is performed.
1814 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1815 * >AWT Threading Issues</a> for details on AWT's threading model.
1816 *
1817 * @param l the window listener
1818 * @see #addWindowListener
1819 * @see #getWindowListeners
1820 */
1821 public synchronized void removeWindowListener(WindowListener l) {
1822 if (l == null) {
1823 return;
1824 }
1825 windowListener = AWTEventMulticaster.remove(windowListener, l);
1826 }
1827
1828 /**
1829 * Removes the specified window state listener so that it no
1830 * longer receives window events from this window. If
1831 * {@code l} is {@code null}, no exception is thrown and
1832 * no action is performed.
1833 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1834 * >AWT Threading Issues</a> for details on AWT's threading model.
1835 *
1836 * @param l the window state listener
1837 * @see #addWindowStateListener
1838 * @see #getWindowStateListeners
1839 * @since 1.4
1840 */
1841 public synchronized void removeWindowStateListener(WindowStateListener l) {
1842 if (l == null) {
1843 return;
1844 }
1845 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1846 }
1847
1848 /**
1849 * Removes the specified window focus listener so that it no longer
1850 * receives window events from this window.
1851 * If l is null, no exception is thrown and no action is performed.
1852 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1853 * >AWT Threading Issues</a> for details on AWT's threading model.
1854 *
1855 * @param l the window focus listener
1856 * @see #addWindowFocusListener
1857 * @see #getWindowFocusListeners
1858 * @since 1.4
1859 */
1860 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1861 if (l == null) {
1862 return;
1863 }
1864 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1865 }
1866
1867 /**
1868 * Returns an array of all the window listeners
1869 * registered on this window.
1870 *
1871 * @return all of this window's {@code WindowListener}s
1872 * or an empty array if no window
1873 * listeners are currently registered
1874 *
1875 * @see #addWindowListener
1876 * @see #removeWindowListener
1877 * @since 1.4
1878 */
1879 public synchronized WindowListener[] getWindowListeners() {
1880 return getListeners(WindowListener.class);
1881 }
1882
1883 /**
1884 * Returns an array of all the window focus listeners
1885 * registered on this window.
1886 *
1887 * @return all of this window's {@code WindowFocusListener}s
1888 * or an empty array if no window focus
1889 * listeners are currently registered
1890 *
1891 * @see #addWindowFocusListener
1892 * @see #removeWindowFocusListener
1893 * @since 1.4
1894 */
1895 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1896 return getListeners(WindowFocusListener.class);
1897 }
1898
1899 /**
1900 * Returns an array of all the window state listeners
1901 * registered on this window.
1902 *
1903 * @return all of this window's {@code WindowStateListener}s
1904 * or an empty array if no window state
1905 * listeners are currently registered
1906 *
1907 * @see #addWindowStateListener
1908 * @see #removeWindowStateListener
1909 * @since 1.4
1910 */
1911 public synchronized WindowStateListener[] getWindowStateListeners() {
1912 return getListeners(WindowStateListener.class);
1913 }
1914
1915
1916 /**
1917 * Returns an array of all the objects currently registered
1918 * as <code><em>Foo</em>Listener</code>s
1919 * upon this {@code Window}.
1920 * <code><em>Foo</em>Listener</code>s are registered using the
1921 * <code>add<em>Foo</em>Listener</code> method.
1922 *
1923 * <p>
1924 *
1925 * You can specify the {@code listenerType} argument
1926 * with a class literal, such as
1927 * <code><em>Foo</em>Listener.class</code>.
1928 * For example, you can query a
1929 * {@code Window w}
1930 * for its window listeners with the following code:
1931 *
1932 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1933 *
1934 * If no such listeners exist, this method returns an empty array.
1935 *
1936 * @param listenerType the type of listeners requested; this parameter
1937 * should specify an interface that descends from
1938 * {@code java.util.EventListener}
1939 * @return an array of all objects registered as
1940 * <code><em>Foo</em>Listener</code>s on this window,
1941 * or an empty array if no such
1942 * listeners have been added
1943 * @exception ClassCastException if {@code listenerType}
1944 * doesn't specify a class or interface that implements
1945 * {@code java.util.EventListener}
1946 * @exception NullPointerException if {@code listenerType} is {@code null}
1947 *
1948 * @see #getWindowListeners
1949 * @since 1.3
1950 */
1951 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1952 EventListener l = null;
1953 if (listenerType == WindowFocusListener.class) {
1954 l = windowFocusListener;
1955 } else if (listenerType == WindowStateListener.class) {
1956 l = windowStateListener;
1957 } else if (listenerType == WindowListener.class) {
1958 l = windowListener;
1959 } else {
1960 return super.getListeners(listenerType);
1961 }
1962 return AWTEventMulticaster.getListeners(l, listenerType);
1963 }
1964
1965 // REMIND: remove when filtering is handled at lower level
1966 boolean eventEnabled(AWTEvent e) {
1967 switch(e.id) {
1968 case WindowEvent.WINDOW_OPENED:
1969 case WindowEvent.WINDOW_CLOSING:
1970 case WindowEvent.WINDOW_CLOSED:
1971 case WindowEvent.WINDOW_ICONIFIED:
1972 case WindowEvent.WINDOW_DEICONIFIED:
1973 case WindowEvent.WINDOW_ACTIVATED:
1974 case WindowEvent.WINDOW_DEACTIVATED:
1975 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1976 windowListener != null) {
1977 return true;
1978 }
1979 return false;
1980 case WindowEvent.WINDOW_GAINED_FOCUS:
1981 case WindowEvent.WINDOW_LOST_FOCUS:
1982 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
1983 windowFocusListener != null) {
1984 return true;
1985 }
1986 return false;
1987 case WindowEvent.WINDOW_STATE_CHANGED:
1988 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
1989 windowStateListener != null) {
1990 return true;
1991 }
1992 return false;
1993 default:
1994 break;
1995 }
1996 return super.eventEnabled(e);
1997 }
1998
1999 /**
2000 * Processes events on this window. If the event is an
2001 * {@code WindowEvent}, it invokes the
2002 * {@code processWindowEvent} method, else it invokes its
2003 * superclass's {@code processEvent}.
2004 * <p>Note that if the event parameter is {@code null}
2005 * the behavior is unspecified and may result in an
2006 * exception.
2007 *
2008 * @param e the event
2009 */
2010 protected void processEvent(AWTEvent e) {
2011 if (e instanceof WindowEvent) {
2012 switch (e.getID()) {
2013 case WindowEvent.WINDOW_OPENED:
2014 case WindowEvent.WINDOW_CLOSING:
2015 case WindowEvent.WINDOW_CLOSED:
2016 case WindowEvent.WINDOW_ICONIFIED:
2017 case WindowEvent.WINDOW_DEICONIFIED:
2018 case WindowEvent.WINDOW_ACTIVATED:
2019 case WindowEvent.WINDOW_DEACTIVATED:
2020 processWindowEvent((WindowEvent)e);
2021 break;
2022 case WindowEvent.WINDOW_GAINED_FOCUS:
2023 case WindowEvent.WINDOW_LOST_FOCUS:
2024 processWindowFocusEvent((WindowEvent)e);
2025 break;
2026 case WindowEvent.WINDOW_STATE_CHANGED:
2027 processWindowStateEvent((WindowEvent)e);
2028 break;
2029 }
2030 return;
2031 }
2032 super.processEvent(e);
2033 }
2034
2035 /**
2036 * Processes window events occurring on this window by
2037 * dispatching them to any registered WindowListener objects.
2038 * NOTE: This method will not be called unless window events
2039 * are enabled for this component; this happens when one of the
2040 * following occurs:
2041 * <ul>
2042 * <li>A WindowListener object is registered via
2043 * {@code addWindowListener}
2044 * <li>Window events are enabled via {@code enableEvents}
2045 * </ul>
2046 * <p>Note that if the event parameter is {@code null}
2047 * the behavior is unspecified and may result in an
2048 * exception.
2049 *
2050 * @param e the window event
2051 * @see Component#enableEvents
2052 */
2053 protected void processWindowEvent(WindowEvent e) {
2054 WindowListener listener = windowListener;
2055 if (listener != null) {
2056 switch(e.getID()) {
2057 case WindowEvent.WINDOW_OPENED:
2058 listener.windowOpened(e);
2059 break;
2060 case WindowEvent.WINDOW_CLOSING:
2061 listener.windowClosing(e);
2062 break;
2063 case WindowEvent.WINDOW_CLOSED:
2064 listener.windowClosed(e);
2065 break;
2066 case WindowEvent.WINDOW_ICONIFIED:
2067 listener.windowIconified(e);
2068 break;
2069 case WindowEvent.WINDOW_DEICONIFIED:
2070 listener.windowDeiconified(e);
2071 break;
2072 case WindowEvent.WINDOW_ACTIVATED:
2073 listener.windowActivated(e);
2074 break;
2075 case WindowEvent.WINDOW_DEACTIVATED:
2076 listener.windowDeactivated(e);
2077 break;
2078 default:
2079 break;
2080 }
2081 }
2082 }
2083
2084 /**
2085 * Processes window focus event occurring on this window by
2086 * dispatching them to any registered WindowFocusListener objects.
2087 * NOTE: this method will not be called unless window focus events
2088 * are enabled for this window. This happens when one of the
2089 * following occurs:
2090 * <ul>
2091 * <li>a WindowFocusListener is registered via
2092 * {@code addWindowFocusListener}
2093 * <li>Window focus events are enabled via {@code enableEvents}
2094 * </ul>
2095 * <p>Note that if the event parameter is {@code null}
2096 * the behavior is unspecified and may result in an
2097 * exception.
2098 *
2099 * @param e the window focus event
2100 * @see Component#enableEvents
2101 * @since 1.4
2102 */
2103 protected void processWindowFocusEvent(WindowEvent e) {
2104 WindowFocusListener listener = windowFocusListener;
2105 if (listener != null) {
2106 switch (e.getID()) {
2107 case WindowEvent.WINDOW_GAINED_FOCUS:
2108 listener.windowGainedFocus(e);
2109 break;
2110 case WindowEvent.WINDOW_LOST_FOCUS:
2111 listener.windowLostFocus(e);
2112 break;
2113 default:
2114 break;
2115 }
2116 }
2117 }
2118
2119 /**
2120 * Processes window state event occurring on this window by
2121 * dispatching them to any registered {@code WindowStateListener}
2122 * objects.
2123 * NOTE: this method will not be called unless window state events
2124 * are enabled for this window. This happens when one of the
2125 * following occurs:
2126 * <ul>
2127 * <li>a {@code WindowStateListener} is registered via
2128 * {@code addWindowStateListener}
2129 * <li>window state events are enabled via {@code enableEvents}
2130 * </ul>
2131 * <p>Note that if the event parameter is {@code null}
2132 * the behavior is unspecified and may result in an
2133 * exception.
2134 *
2135 * @param e the window state event
2136 * @see java.awt.Component#enableEvents
2137 * @since 1.4
2138 */
2139 protected void processWindowStateEvent(WindowEvent e) {
2140 WindowStateListener listener = windowStateListener;
2141 if (listener != null) {
2142 switch (e.getID()) {
2143 case WindowEvent.WINDOW_STATE_CHANGED:
2144 listener.windowStateChanged(e);
2145 break;
2146 default:
2147 break;
2148 }
2149 }
2150 }
2151
2152 /**
2153 * Implements a debugging hook -- checks to see if
2154 * the user has typed <i>control-shift-F1</i>. If so,
2155 * the list of child windows is dumped to {@code System.out}.
2156 * @param e the keyboard event
2157 */
2158 void preProcessKeyEvent(KeyEvent e) {
2159 // Dump the list of child windows to System.out if debug is enabled.
2160 if (DebugSettings.getInstance().getBoolean("on", false)) {
2161 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2162 e.isControlDown() && e.isShiftDown() &&
2163 e.getID() == KeyEvent.KEY_PRESSED) {
2164 list(System.out, 0);
2165 }
2166 }
2167 }
2168
2169 void postProcessKeyEvent(KeyEvent e) {
2170 // Do nothing
2171 }
2172
2173
2174 /**
2175 * Sets whether this window should always be above other windows. If
2176 * there are multiple always-on-top windows, their relative order is
2177 * unspecified and platform dependent.
2178 * <p>
2179 * If some other window is already always-on-top then the
2180 * relative order between these windows is unspecified (depends on
2181 * platform). No window can be brought to be over the always-on-top
2182 * window except maybe another always-on-top window.
2183 * <p>
2184 * All windows owned by an always-on-top window inherit this state and
2185 * automatically become always-on-top. If a window ceases to be
2186 * always-on-top, the windows that it owns will no longer be
2187 * always-on-top. When an always-on-top window is sent {@link #toBack
2188 * toBack}, its always-on-top state is set to {@code false}.
2189 *
2190 * <p> When this method is called on a window with a value of
2191 * {@code true}, and the window is visible and the platform
2192 * supports always-on-top for this window, the window is immediately
2193 * brought forward, "sticking" it in the top-most position. If the
2194 * window isn`t currently visible, this method sets the always-on-top
2195 * state to {@code true} but does not bring the window forward.
2196 * When the window is later shown, it will be always-on-top.
2197 *
2198 * <p> When this method is called on a window with a value of
2199 * {@code false} the always-on-top state is set to normal. It may also
2200 * cause an unspecified, platform-dependent change in the z-order of
2201 * top-level windows, but other always-on-top windows will remain in
2202 * top-most position. Calling this method with a value of {@code false}
2203 * on a window that has a normal state has no effect.
2204 *
2205 * <p><b>Note</b>: some platforms might not support always-on-top
2206 * windows. To detect if always-on-top windows are supported by the
2207 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2208 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2209 * isn't supported for this window or this window's toolkit does not
2210 * support always-on-top windows, calling this method has no effect.
2211 * <p>
2212 * If a SecurityManager is installed, the calling thread must be
2213 * granted the AWTPermission "setWindowAlwaysOnTop" in
2214 * order to set the value of this property. If this
2215 * permission is not granted, this method will throw a
2216 * SecurityException, and the current value of the property will
2217 * be left unchanged.
2218 *
2219 * @param alwaysOnTop true if the window should always be above other
2220 * windows
2221 * @throws SecurityException if the calling thread does not have
2222 * permission to set the value of always-on-top property
2223 *
2224 * @see #isAlwaysOnTop
2225 * @see #toFront
2226 * @see #toBack
2227 * @see AWTPermission
2228 * @see #isAlwaysOnTopSupported
2229 * @see #getToolkit
2230 * @see Toolkit#isAlwaysOnTopSupported
2231 * @since 1.5
2232 */
2233 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2234 SecurityManager security = System.getSecurityManager();
2235 if (security != null) {
2236 security.checkPermission(AWTPermissions.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2237 }
2238
2239 boolean oldAlwaysOnTop;
2240 synchronized(this) {
2241 oldAlwaysOnTop = this.alwaysOnTop;
2242 this.alwaysOnTop = alwaysOnTop;
2243 }
2244 if (oldAlwaysOnTop != alwaysOnTop ) {
2245 if (isAlwaysOnTopSupported()) {
2246 WindowPeer peer = (WindowPeer)this.peer;
2247 synchronized(getTreeLock()) {
2248 if (peer != null) {
2249 peer.updateAlwaysOnTopState();
2250 }
2251 }
2252 }
2253 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2254 }
2255 setOwnedWindowsAlwaysOnTop(alwaysOnTop);
2256 }
2257
2258 @SuppressWarnings({"rawtypes", "unchecked"})
2259 private void setOwnedWindowsAlwaysOnTop(boolean alwaysOnTop) {
2260 WeakReference<Window>[] ownedWindowArray;
2261 synchronized (ownedWindowList) {
2262 ownedWindowArray = new WeakReference[ownedWindowList.size()];
2263 ownedWindowList.copyInto(ownedWindowArray);
2264 }
2265
2266 for (WeakReference<Window> ref : ownedWindowArray) {
2267 Window window = ref.get();
2268 if (window != null) {
2269 try {
2270 window.setAlwaysOnTop(alwaysOnTop);
2271 } catch (SecurityException ignore) {
2272 }
2273 }
2274 }
2275 }
2276
2277 /**
2278 * Returns whether the always-on-top mode is supported for this
2279 * window. Some platforms may not support always-on-top windows, some
2280 * may support only some kinds of top-level windows; for example,
2281 * a platform may not support always-on-top modal dialogs.
2282 *
2283 * @return {@code true}, if the always-on-top mode is supported for
2284 * this window and this window's toolkit supports always-on-top windows,
2285 * {@code false} otherwise
2286 *
2287 * @see #setAlwaysOnTop(boolean)
2288 * @see #getToolkit
2289 * @see Toolkit#isAlwaysOnTopSupported
2290 * @since 1.6
2291 */
2292 public boolean isAlwaysOnTopSupported() {
2293 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2294 }
2295
2296
2297 /**
2298 * Returns whether this window is an always-on-top window.
2299 * @return {@code true}, if the window is in always-on-top state,
2300 * {@code false} otherwise
2301 * @see #setAlwaysOnTop
2302 * @since 1.5
2303 */
2304 public final boolean isAlwaysOnTop() {
2305 return alwaysOnTop;
2306 }
2307
2308
2309 /**
2310 * Returns the child Component of this Window that has focus if this Window
2311 * is focused; returns null otherwise.
2312 *
2313 * @return the child Component with focus, or null if this Window is not
2314 * focused
2315 * @see #getMostRecentFocusOwner
2316 * @see #isFocused
2317 */
2318 public Component getFocusOwner() {
2319 return (isFocused())
2320 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2321 getFocusOwner()
2322 : null;
2323 }
2324
2325 /**
2326 * Returns the child Component of this Window that will receive the focus
2327 * when this Window is focused. If this Window is currently focused, this
2328 * method returns the same Component as {@code getFocusOwner()}. If
2329 * this Window is not focused, then the child Component that most recently
2330 * requested focus will be returned. If no child Component has ever
2331 * requested focus, and this is a focusable Window, then this Window's
2332 * initial focusable Component is returned. If no child Component has ever
2333 * requested focus, and this is a non-focusable Window, null is returned.
2334 *
2335 * @return the child Component that will receive focus when this Window is
2336 * focused
2337 * @see #getFocusOwner
2338 * @see #isFocused
2339 * @see #isFocusableWindow
2340 * @since 1.4
2341 */
2342 public Component getMostRecentFocusOwner() {
2343 if (isFocused()) {
2344 return getFocusOwner();
2345 } else {
2346 Component mostRecent =
2347 KeyboardFocusManager.getMostRecentFocusOwner(this);
2348 if (mostRecent != null) {
2349 return mostRecent;
2350 } else {
2351 return (isFocusableWindow())
2352 ? getFocusTraversalPolicy().getInitialComponent(this)
2353 : null;
2354 }
2355 }
2356 }
2357
2358 /**
2359 * Returns whether this Window is active. Only a Frame or a Dialog may be
2360 * active. The native windowing system may denote the active Window or its
2361 * children with special decorations, such as a highlighted title bar. The
2362 * active Window is always either the focused Window, or the first Frame or
2363 * Dialog that is an owner of the focused Window.
2364 *
2365 * @return whether this is the active Window.
2366 * @see #isFocused
2367 * @since 1.4
2368 */
2369 public boolean isActive() {
2370 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2371 getActiveWindow() == this);
2372 }
2373
2374 /**
2375 * Returns whether this Window is focused. If there exists a focus owner,
2376 * the focused Window is the Window that is, or contains, that focus owner.
2377 * If there is no focus owner, then no Window is focused.
2378 * <p>
2379 * If the focused Window is a Frame or a Dialog it is also the active
2380 * Window. Otherwise, the active Window is the first Frame or Dialog that
2381 * is an owner of the focused Window.
2382 *
2383 * @return whether this is the focused Window.
2384 * @see #isActive
2385 * @since 1.4
2386 */
2387 public boolean isFocused() {
2388 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2389 getGlobalFocusedWindow() == this);
2390 }
2391
2392 /**
2393 * Gets a focus traversal key for this Window. (See {@code
2394 * setFocusTraversalKeys} for a full description of each key.)
2395 * <p>
2396 * If the traversal key has not been explicitly set for this Window,
2397 * then this Window's parent's traversal key is returned. If the
2398 * traversal key has not been explicitly set for any of this Window's
2399 * ancestors, then the current KeyboardFocusManager's default traversal key
2400 * is returned.
2401 *
2402 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2403 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2404 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2405 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2406 * @return the AWTKeyStroke for the specified key
2407 * @see Container#setFocusTraversalKeys
2408 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2409 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2410 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2411 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2412 * @throws IllegalArgumentException if id is not one of
2413 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2414 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2415 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2416 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2417 * @since 1.4
2418 */
2419 @SuppressWarnings("unchecked")
2420 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2421 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2422 throw new IllegalArgumentException("invalid focus traversal key identifier");
2423 }
2424
2425 // Okay to return Set directly because it is an unmodifiable view
2426 @SuppressWarnings("rawtypes")
2427 Set keystrokes = (focusTraversalKeys != null)
2428 ? focusTraversalKeys[id]
2429 : null;
2430
2431 if (keystrokes != null) {
2432 return keystrokes;
2433 } else {
2434 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2435 getDefaultFocusTraversalKeys(id);
2436 }
2437 }
2438
2439 /**
2440 * Does nothing because Windows must always be roots of a focus traversal
2441 * cycle. The passed-in value is ignored.
2442 *
2443 * @param focusCycleRoot this value is ignored
2444 * @see #isFocusCycleRoot
2445 * @see Container#setFocusTraversalPolicy
2446 * @see Container#getFocusTraversalPolicy
2447 * @since 1.4
2448 */
2449 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2450 }
2451
2452 /**
2453 * Always returns {@code true} because all Windows must be roots of a
2454 * focus traversal cycle.
2455 *
2456 * @return {@code true}
2457 * @see #setFocusCycleRoot
2458 * @see Container#setFocusTraversalPolicy
2459 * @see Container#getFocusTraversalPolicy
2460 * @since 1.4
2461 */
2462 public final boolean isFocusCycleRoot() {
2463 return true;
2464 }
2465
2466 /**
2467 * Always returns {@code null} because Windows have no ancestors; they
2468 * represent the top of the Component hierarchy.
2469 *
2470 * @return {@code null}
2471 * @see Container#isFocusCycleRoot()
2472 * @since 1.4
2473 */
2474 public final Container getFocusCycleRootAncestor() {
2475 return null;
2476 }
2477
2478 /**
2479 * Returns whether this Window can become the focused Window, that is,
2480 * whether this Window or any of its subcomponents can become the focus
2481 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2482 * must be set to {@code true}. For a Window which is not a Frame or
2483 * Dialog to be focusable, its focusable Window state must be set to
2484 * {@code true}, its nearest owning Frame or Dialog must be
2485 * showing on the screen, and it must contain at least one Component in
2486 * its focus traversal cycle. If any of these conditions is not met, then
2487 * neither this Window nor any of its subcomponents can become the focus
2488 * owner.
2489 *
2490 * @return {@code true} if this Window can be the focused Window;
2491 * {@code false} otherwise
2492 * @see #getFocusableWindowState
2493 * @see #setFocusableWindowState
2494 * @see #isShowing
2495 * @see Component#isFocusable
2496 * @since 1.4
2497 */
2498 public final boolean isFocusableWindow() {
2499 // If a Window/Frame/Dialog was made non-focusable, then it is always
2500 // non-focusable.
2501 if (!getFocusableWindowState()) {
2502 return false;
2503 }
2504
2505 // All other tests apply only to Windows.
2506 if (this instanceof Frame || this instanceof Dialog) {
2507 return true;
2508 }
2509
2510 // A Window must have at least one Component in its root focus
2511 // traversal cycle to be focusable.
2512 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2513 return false;
2514 }
2515
2516 // A Window's nearest owning Frame or Dialog must be showing on the
2517 // screen.
2518 for (Window owner = getOwner(); owner != null;
2519 owner = owner.getOwner())
2520 {
2521 if (owner instanceof Frame || owner instanceof Dialog) {
2522 return owner.isShowing();
2523 }
2524 }
2525
2526 return false;
2527 }
2528
2529 /**
2530 * Returns whether this Window can become the focused Window if it meets
2531 * the other requirements outlined in {@code isFocusableWindow}. If
2532 * this method returns {@code false}, then
2533 * {@code isFocusableWindow} will return {@code false} as well.
2534 * If this method returns {@code true}, then
2535 * {@code isFocusableWindow} may return {@code true} or
2536 * {@code false} depending upon the other requirements which must be
2537 * met in order for a Window to be focusable.
2538 * <p>
2539 * By default, all Windows have a focusable Window state of
2540 * {@code true}.
2541 *
2542 * @return whether this Window can be the focused Window
2543 * @see #isFocusableWindow
2544 * @see #setFocusableWindowState
2545 * @see #isShowing
2546 * @see Component#setFocusable
2547 * @since 1.4
2548 */
2549 public boolean getFocusableWindowState() {
2550 return focusableWindowState;
2551 }
2552
2553 /**
2554 * Sets whether this Window can become the focused Window if it meets
2555 * the other requirements outlined in {@code isFocusableWindow}. If
2556 * this Window's focusable Window state is set to {@code false}, then
2557 * {@code isFocusableWindow} will return {@code false}. If this
2558 * Window's focusable Window state is set to {@code true}, then
2559 * {@code isFocusableWindow} may return {@code true} or
2560 * {@code false} depending upon the other requirements which must be
2561 * met in order for a Window to be focusable.
2562 * <p>
2563 * Setting a Window's focusability state to {@code false} is the
2564 * standard mechanism for an application to identify to the AWT a Window
2565 * which will be used as a floating palette or toolbar, and thus should be
2566 * a non-focusable Window.
2567 *
2568 * Setting the focusability state on a visible {@code Window}
2569 * can have a delayed effect on some platforms — the actual
2570 * change may happen only when the {@code Window} becomes
2571 * hidden and then visible again. To ensure consistent behavior
2572 * across platforms, set the {@code Window}'s focusable state
2573 * when the {@code Window} is invisible and then show it.
2574 *
2575 * @param focusableWindowState whether this Window can be the focused
2576 * Window
2577 * @see #isFocusableWindow
2578 * @see #getFocusableWindowState
2579 * @see #isShowing
2580 * @see Component#setFocusable
2581 * @since 1.4
2582 */
2583 public void setFocusableWindowState(boolean focusableWindowState) {
2584 boolean oldFocusableWindowState;
2585 synchronized (this) {
2586 oldFocusableWindowState = this.focusableWindowState;
2587 this.focusableWindowState = focusableWindowState;
2588 }
2589 WindowPeer peer = (WindowPeer)this.peer;
2590 if (peer != null) {
2591 peer.updateFocusableWindowState();
2592 }
2593 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2594 focusableWindowState);
2595 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2596 for (Window owner = getOwner();
2597 owner != null;
2598 owner = owner.getOwner())
2599 {
2600 Component toFocus =
2601 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2602 if (toFocus != null && toFocus.requestFocus(false, CausedFocusEvent.Cause.ACTIVATION)) {
2603 return;
2604 }
2605 }
2606 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2607 clearGlobalFocusOwnerPriv();
2608 }
2609 }
2610
2611 /**
2612 * Sets whether this window should receive focus on
2613 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2614 * or being moved to the front (with a call to {@link #toFront}).
2615 * <p>
2616 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2617 * (e.g. when showing an owner of the window makes the window to be shown).
2618 * {@link #toFront} may also be called indirectly (e.g. when
2619 * {@link #setVisible setVisible(true)} is called on already visible window).
2620 * In all such cases this property takes effect as well.
2621 * <p>
2622 * The value of the property is not inherited by owned windows.
2623 *
2624 * @param autoRequestFocus whether this window should be focused on
2625 * subsequently being shown or being moved to the front
2626 * @see #isAutoRequestFocus
2627 * @see #isFocusableWindow
2628 * @see #setVisible
2629 * @see #toFront
2630 * @since 1.7
2631 */
2632 public void setAutoRequestFocus(boolean autoRequestFocus) {
2633 this.autoRequestFocus = autoRequestFocus;
2634 }
2635
2636 /**
2637 * Returns whether this window should receive focus on subsequently being shown
2638 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2639 * (with a call to {@link #toFront}).
2640 * <p>
2641 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2642 *
2643 * @return {@code autoRequestFocus} value
2644 * @see #setAutoRequestFocus
2645 * @since 1.7
2646 */
2647 public boolean isAutoRequestFocus() {
2648 return autoRequestFocus;
2649 }
2650
2651 /**
2652 * Adds a PropertyChangeListener to the listener list. The listener is
2653 * registered for all bound properties of this class, including the
2654 * following:
2655 * <ul>
2656 * <li>this Window's font ("font")</li>
2657 * <li>this Window's background color ("background")</li>
2658 * <li>this Window's foreground color ("foreground")</li>
2659 * <li>this Window's focusability ("focusable")</li>
2660 * <li>this Window's focus traversal keys enabled state
2661 * ("focusTraversalKeysEnabled")</li>
2662 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2663 * ("forwardFocusTraversalKeys")</li>
2664 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2665 * ("backwardFocusTraversalKeys")</li>
2666 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2667 * ("upCycleFocusTraversalKeys")</li>
2668 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2669 * ("downCycleFocusTraversalKeys")</li>
2670 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2671 * </li>
2672 * <li>this Window's focusable Window state ("focusableWindowState")
2673 * </li>
2674 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2675 * </ul>
2676 * Note that if this Window is inheriting a bound property, then no
2677 * event will be fired in response to a change in the inherited property.
2678 * <p>
2679 * If listener is null, no exception is thrown and no action is performed.
2680 *
2681 * @param listener the PropertyChangeListener to be added
2682 *
2683 * @see Component#removePropertyChangeListener
2684 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2685 */
2686 public void addPropertyChangeListener(PropertyChangeListener listener) {
2687 super.addPropertyChangeListener(listener);
2688 }
2689
2690 /**
2691 * Adds a PropertyChangeListener to the listener list for a specific
2692 * property. The specified property may be user-defined, or one of the
2693 * following:
2694 * <ul>
2695 * <li>this Window's font ("font")</li>
2696 * <li>this Window's background color ("background")</li>
2697 * <li>this Window's foreground color ("foreground")</li>
2698 * <li>this Window's focusability ("focusable")</li>
2699 * <li>this Window's focus traversal keys enabled state
2700 * ("focusTraversalKeysEnabled")</li>
2701 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2702 * ("forwardFocusTraversalKeys")</li>
2703 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2704 * ("backwardFocusTraversalKeys")</li>
2705 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2706 * ("upCycleFocusTraversalKeys")</li>
2707 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2708 * ("downCycleFocusTraversalKeys")</li>
2709 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2710 * </li>
2711 * <li>this Window's focusable Window state ("focusableWindowState")
2712 * </li>
2713 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2714 * </ul>
2715 * Note that if this Window is inheriting a bound property, then no
2716 * event will be fired in response to a change in the inherited property.
2717 * <p>
2718 * If listener is null, no exception is thrown and no action is performed.
2719 *
2720 * @param propertyName one of the property names listed above
2721 * @param listener the PropertyChangeListener to be added
2722 *
2723 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2724 * @see Component#removePropertyChangeListener
2725 */
2726 public void addPropertyChangeListener(String propertyName,
2727 PropertyChangeListener listener) {
2728 super.addPropertyChangeListener(propertyName, listener);
2729 }
2730
2731 /**
2732 * Indicates if this container is a validate root.
2733 * <p>
2734 * {@code Window} objects are the validate roots, and, therefore, they
2735 * override this method to return {@code true}.
2736 *
2737 * @return {@code true}
2738 * @since 1.7
2739 * @see java.awt.Container#isValidateRoot
2740 */
2741 @Override
2742 public boolean isValidateRoot() {
2743 return true;
2744 }
2745
2746 /**
2747 * Dispatches an event to this window or one of its sub components.
2748 * @param e the event
2749 */
2750 void dispatchEventImpl(AWTEvent e) {
2751 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2752 invalidate();
2753 validate();
2754 }
2755 super.dispatchEventImpl(e);
2756 }
2757
2758 /**
2759 * @deprecated As of JDK version 1.1
2760 * replaced by {@code dispatchEvent(AWTEvent)}.
2761 */
2762 @Deprecated
2763 public boolean postEvent(Event e) {
2764 if (handleEvent(e)) {
2765 e.consume();
2766 return true;
2767 }
2768 return false;
2769 }
2770
2771 /**
2772 * Checks if this Window is showing on screen.
2773 * @see Component#setVisible
2774 */
2775 public boolean isShowing() {
2776 return visible;
2777 }
2778
2779 boolean isDisposing() {
2780 return disposing;
2781 }
2782
2783 /**
2784 * @deprecated As of J2SE 1.4, replaced by
2785 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2786 * @param rb the resource bundle
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 * @param rbName the resource name
2797 */
2798 @Deprecated
2799 public void applyResourceBundle(String rbName) {
2800 // Use the unnamed module from the TCCL or system class loader.
2801 ClassLoader cl = Thread.currentThread().getContextClassLoader();
2802 if (cl == null) {
2803 cl = ClassLoader.getSystemClassLoader();
2804 }
2805 applyResourceBundle(ResourceBundle.getBundle(rbName, cl.getUnnamedModule()));
2806 }
2807
2808 /*
2809 * Support for tracking all windows owned by this window
2810 */
2811 void addOwnedWindow(WeakReference<Window> weakWindow) {
2812 if (weakWindow != null) {
2813 synchronized(ownedWindowList) {
2814 // this if statement should really be an assert, but we don't
2815 // have asserts...
2816 if (!ownedWindowList.contains(weakWindow)) {
2817 ownedWindowList.addElement(weakWindow);
2818 }
2819 }
2820 }
2821 }
2822
2823 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2824 if (weakWindow != null) {
2825 // synchronized block not required since removeElement is
2826 // already synchronized
2827 ownedWindowList.removeElement(weakWindow);
2828 }
2829 }
2830
2831 void connectOwnedWindow(Window child) {
2832 child.parent = this;
2833 addOwnedWindow(child.weakThis);
2834 child.disposerRecord.updateOwner();
2835 }
2836
2837 private void addToWindowList() {
2838 synchronized (Window.class) {
2839 @SuppressWarnings("unchecked")
2840 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2841 if (windowList == null) {
2842 windowList = new Vector<WeakReference<Window>>();
2843 appContext.put(Window.class, windowList);
2844 }
2845 windowList.add(weakThis);
2846 }
2847 }
2848
2849 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2850 synchronized (Window.class) {
2851 @SuppressWarnings("unchecked")
2852 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2853 if (windowList != null) {
2854 windowList.remove(weakThis);
2855 }
2856 }
2857 }
2858
2859 private void removeFromWindowList() {
2860 removeFromWindowList(appContext, weakThis);
2861 }
2862
2863 /**
2864 * Window type.
2865 *
2866 * Synchronization: ObjectLock
2867 */
2868 private Type type = Type.NORMAL;
2869
2870 /**
2871 * Sets the type of the window.
2872 *
2873 * This method can only be called while the window is not displayable.
2874 *
2875 * @param type the window type
2876 * @throws IllegalComponentStateException if the window
2877 * is displayable.
2878 * @throws IllegalArgumentException if the type is {@code null}
2879 * @see Component#isDisplayable
2880 * @see #getType
2881 * @since 1.7
2882 */
2883 public void setType(Type type) {
2884 if (type == null) {
2885 throw new IllegalArgumentException("type should not be null.");
2886 }
2887 synchronized (getTreeLock()) {
2888 if (isDisplayable()) {
2889 throw new IllegalComponentStateException(
2890 "The window is displayable.");
2891 }
2892 synchronized (getObjectLock()) {
2893 this.type = type;
2894 }
2895 }
2896 }
2897
2898 /**
2899 * Returns the type of the window.
2900 *
2901 * @return the type of the window
2902 * @see #setType
2903 * @since 1.7
2904 */
2905 public Type getType() {
2906 synchronized (getObjectLock()) {
2907 return type;
2908 }
2909 }
2910
2911 /**
2912 * The window serialized data version.
2913 *
2914 * @serial
2915 */
2916 private int windowSerializedDataVersion = 2;
2917
2918 /**
2919 * Writes default serializable fields to stream. Writes
2920 * a list of serializable {@code WindowListener}s and
2921 * {@code WindowFocusListener}s as optional data.
2922 * Writes a list of child windows as optional data.
2923 * Writes a list of icon images as optional data
2924 *
2925 * @param s the {@code ObjectOutputStream} to write
2926 * @serialData {@code null} terminated sequence of
2927 * 0 or more pairs; the pair consists of a {@code String}
2928 * and {@code Object}; the {@code String}
2929 * indicates the type of object and is one of the following:
2930 * {@code windowListenerK} indicating a
2931 * {@code WindowListener} object;
2932 * {@code windowFocusWindowK} indicating a
2933 * {@code WindowFocusListener} object;
2934 * {@code ownedWindowK} indicating a child
2935 * {@code Window} object
2936 *
2937 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2938 * @see Component#windowListenerK
2939 * @see Component#windowFocusListenerK
2940 * @see Component#ownedWindowK
2941 * @see #readObject(ObjectInputStream)
2942 */
2943 private void writeObject(ObjectOutputStream s) throws IOException {
2944 synchronized (this) {
2945 // Update old focusMgr fields so that our object stream can be read
2946 // by previous releases
2947 focusMgr = new FocusManager();
2948 focusMgr.focusRoot = this;
2949 focusMgr.focusOwner = getMostRecentFocusOwner();
2950
2951 s.defaultWriteObject();
2952
2953 // Clear fields so that we don't keep extra references around
2954 focusMgr = null;
2955
2956 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2957 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2958 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2959 }
2960
2961 s.writeObject(null);
2962
2963 synchronized (ownedWindowList) {
2964 for (int i = 0; i < ownedWindowList.size(); i++) {
2965 Window child = ownedWindowList.elementAt(i).get();
2966 if (child != null) {
2967 s.writeObject(ownedWindowK);
2968 s.writeObject(child);
2969 }
2970 }
2971 }
2972 s.writeObject(null);
2973
2974 //write icon array
2975 if (icons != null) {
2976 for (Image i : icons) {
2977 if (i instanceof Serializable) {
2978 s.writeObject(i);
2979 }
2980 }
2981 }
2982 s.writeObject(null);
2983 }
2984
2985 //
2986 // Part of deserialization procedure to be called before
2987 // user's code.
2988 //
2989 private void initDeserializedWindow() {
2990 setWarningString();
2991 inputContextLock = new Object();
2992
2993 // Deserialized Windows are not yet visible.
2994 visible = false;
2995
2996 weakThis = new WeakReference<>(this);
2997
2998 anchor = new Object();
2999 disposerRecord = new WindowDisposerRecord(appContext, this);
3000 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
3001
3002 addToWindowList();
3003 initGC(null);
3004 ownedWindowList = new Vector<>();
3005 }
3006
3007 private void deserializeResources(ObjectInputStream s)
3008 throws ClassNotFoundException, IOException, HeadlessException {
3009
3010 if (windowSerializedDataVersion < 2) {
3011 // Translate old-style focus tracking to new model. For 1.4 and
3012 // later releases, we'll rely on the Window's initial focusable
3013 // Component.
3014 if (focusMgr != null) {
3015 if (focusMgr.focusOwner != null) {
3016 KeyboardFocusManager.
3017 setMostRecentFocusOwner(this, focusMgr.focusOwner);
3018 }
3019 }
3020
3021 // This field is non-transient and relies on default serialization.
3022 // However, the default value is insufficient, so we need to set
3023 // it explicitly for object data streams prior to 1.4.
3024 focusableWindowState = true;
3025
3026
3027 }
3028
3029 Object keyOrNull;
3030 while(null != (keyOrNull = s.readObject())) {
3031 String key = ((String)keyOrNull).intern();
3032
3033 if (windowListenerK == key) {
3034 addWindowListener((WindowListener)(s.readObject()));
3035 } else if (windowFocusListenerK == key) {
3036 addWindowFocusListener((WindowFocusListener)(s.readObject()));
3037 } else if (windowStateListenerK == key) {
3038 addWindowStateListener((WindowStateListener)(s.readObject()));
3039 } else // skip value for unrecognized key
3040 s.readObject();
3041 }
3042
3043 try {
3044 while (null != (keyOrNull = s.readObject())) {
3045 String key = ((String)keyOrNull).intern();
3046
3047 if (ownedWindowK == key)
3048 connectOwnedWindow((Window) s.readObject());
3049
3050 else // skip value for unrecognized key
3051 s.readObject();
3052 }
3053
3054 //read icons
3055 Object obj = s.readObject(); //Throws OptionalDataException
3056 //for pre1.6 objects.
3057 icons = new ArrayList<Image>(); //Frame.readObject() assumes
3058 //pre1.6 version if icons is null.
3059 while (obj != null) {
3060 if (obj instanceof Image) {
3061 icons.add((Image)obj);
3062 }
3063 obj = s.readObject();
3064 }
3065 }
3066 catch (OptionalDataException e) {
3067 // 1.1 serialized form
3068 // ownedWindowList will be updated by Frame.readObject
3069 }
3070
3071 }
3072
3073 /**
3074 * Reads the {@code ObjectInputStream} and an optional
3075 * list of listeners to receive various events fired by
3076 * the component; also reads a list of
3077 * (possibly {@code null}) child windows.
3078 * Unrecognized keys or values will be ignored.
3079 *
3080 * @param s the {@code ObjectInputStream} to read
3081 * @exception HeadlessException if
3082 * {@code GraphicsEnvironment.isHeadless} returns
3083 * {@code true}
3084 * @see java.awt.GraphicsEnvironment#isHeadless
3085 * @see #writeObject
3086 */
3087 private void readObject(ObjectInputStream s)
3088 throws ClassNotFoundException, IOException, HeadlessException
3089 {
3090 GraphicsEnvironment.checkHeadless();
3091 initDeserializedWindow();
3092 ObjectInputStream.GetField f = s.readFields();
3093
3094 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3095 state = f.get("state", 0);
3096 focusableWindowState = f.get("focusableWindowState", true);
3097 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3098 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3099 // Note: 1.4 (or later) doesn't use focusMgr
3100 focusMgr = (FocusManager)f.get("focusMgr", null);
3101 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3102 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3103 setModalExclusionType(et); // since 6.0
3104 boolean aot = f.get("alwaysOnTop", false);
3105 if(aot) {
3106 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3107 }
3108 shape = (Shape)f.get("shape", null);
3109 opacity = (Float)f.get("opacity", 1.0f);
3110
3111 this.securityWarningWidth = 0;
3112 this.securityWarningHeight = 0;
3113 this.securityWarningPointX = 2.0;
3114 this.securityWarningPointY = 0.0;
3115 this.securityWarningAlignmentX = RIGHT_ALIGNMENT;
3116 this.securityWarningAlignmentY = TOP_ALIGNMENT;
3117
3118 deserializeResources(s);
3119 }
3120
3121 /*
3122 * --- Accessibility Support ---
3123 *
3124 */
3125
3126 /**
3127 * Gets the AccessibleContext associated with this Window.
3128 * For windows, the AccessibleContext takes the form of an
3129 * AccessibleAWTWindow.
3130 * A new AccessibleAWTWindow instance is created if necessary.
3131 *
3132 * @return an AccessibleAWTWindow that serves as the
3133 * AccessibleContext of this Window
3134 * @since 1.3
3135 */
3136 public AccessibleContext getAccessibleContext() {
3137 if (accessibleContext == null) {
3138 accessibleContext = new AccessibleAWTWindow();
3139 }
3140 return accessibleContext;
3141 }
3142
3143 /**
3144 * This class implements accessibility support for the
3145 * {@code Window} class. It provides an implementation of the
3146 * Java Accessibility API appropriate to window user-interface elements.
3147 * @since 1.3
3148 */
3149 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3150 {
3151 /*
3152 * JDK 1.3 serialVersionUID
3153 */
3154 private static final long serialVersionUID = 4215068635060671780L;
3155
3156 /**
3157 * Get the role of this object.
3158 *
3159 * @return an instance of AccessibleRole describing the role of the
3160 * object
3161 * @see javax.accessibility.AccessibleRole
3162 */
3163 public AccessibleRole getAccessibleRole() {
3164 return AccessibleRole.WINDOW;
3165 }
3166
3167 /**
3168 * Get the state of this object.
3169 *
3170 * @return an instance of AccessibleStateSet containing the current
3171 * state set of the object
3172 * @see javax.accessibility.AccessibleState
3173 */
3174 public AccessibleStateSet getAccessibleStateSet() {
3175 AccessibleStateSet states = super.getAccessibleStateSet();
3176 if (getFocusOwner() != null) {
3177 states.add(AccessibleState.ACTIVE);
3178 }
3179 return states;
3180 }
3181
3182 } // inner class AccessibleAWTWindow
3183
3184 @Override
3185 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3186 if (gc == null) {
3187 gc = GraphicsEnvironment.
3188 getLocalGraphicsEnvironment().
3189 getDefaultScreenDevice().
3190 getDefaultConfiguration();
3191 }
3192 synchronized (getTreeLock()) {
3193 super.setGraphicsConfiguration(gc);
3194 if (log.isLoggable(PlatformLogger.Level.FINER)) {
3195 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3196 }
3197 }
3198 }
3199
3200 /**
3201 * Sets the location of the window relative to the specified
3202 * component according to the following scenarios.
3203 * <p>
3204 * The target screen mentioned below is a screen to which
3205 * the window should be placed after the setLocationRelativeTo
3206 * method is called.
3207 * <ul>
3208 * <li>If the component is {@code null}, or the {@code
3209 * GraphicsConfiguration} associated with this component is
3210 * {@code null}, the window is placed in the center of the
3211 * screen. The center point can be obtained with the {@link
3212 * GraphicsEnvironment#getCenterPoint
3213 * GraphicsEnvironment.getCenterPoint} method.
3214 * <li>If the component is not {@code null}, but it is not
3215 * currently showing, the window is placed in the center of
3216 * the target screen defined by the {@code
3217 * GraphicsConfiguration} associated with this component.
3218 * <li>If the component is not {@code null} and is shown on
3219 * the screen, then the window is located in such a way that
3220 * the center of the window coincides with the center of the
3221 * component.
3222 * </ul>
3223 * <p>
3224 * If the screens configuration does not allow the window to
3225 * be moved from one screen to another, then the window is
3226 * only placed at the location determined according to the
3227 * above conditions and its {@code GraphicsConfiguration} is
3228 * not changed.
3229 * <p>
3230 * <b>Note</b>: If the lower edge of the window is out of the screen,
3231 * then the window is placed to the side of the {@code Component}
3232 * that is closest to the center of the screen. So if the
3233 * component is on the right part of the screen, the window
3234 * is placed to its left, and vice versa.
3235 * <p>
3236 * If after the window location has been calculated, the upper,
3237 * left, or right edge of the window is out of the screen,
3238 * then the window is located in such a way that the upper,
3239 * left, or right edge of the window coincides with the
3240 * corresponding edge of the screen. If both left and right
3241 * edges of the window are out of the screen, the window is
3242 * placed at the left side of the screen. The similar placement
3243 * will occur if both top and bottom edges are out of the screen.
3244 * In that case, the window is placed at the top side of the screen.
3245 * <p>
3246 * The method changes the geometry-related data. Therefore,
3247 * the native windowing system may ignore such requests, or it may modify
3248 * the requested data, so that the {@code Window} object is placed and sized
3249 * in a way that corresponds closely to the desktop settings.
3250 *
3251 * @param c the component in relation to which the window's location
3252 * is determined
3253 * @see java.awt.GraphicsEnvironment#getCenterPoint
3254 * @since 1.4
3255 */
3256 public void setLocationRelativeTo(Component c) {
3257 // target location
3258 int dx = 0, dy = 0;
3259 // target GC
3260 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3261 Rectangle gcBounds = gc.getBounds();
3262
3263 Dimension windowSize = getSize();
3264
3265 // search a top-level of c
3266 Window componentWindow = SunToolkit.getContainingWindow(c);
3267 if ((c == null) || (componentWindow == null)) {
3268 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3269 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3270 gcBounds = gc.getBounds();
3271 Point centerPoint = ge.getCenterPoint();
3272 dx = centerPoint.x - windowSize.width / 2;
3273 dy = centerPoint.y - windowSize.height / 2;
3274 } else if (!c.isShowing()) {
3275 gc = componentWindow.getGraphicsConfiguration();
3276 gcBounds = gc.getBounds();
3277 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3278 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3279 } else {
3280 gc = componentWindow.getGraphicsConfiguration();
3281 gcBounds = gc.getBounds();
3282 Dimension compSize = c.getSize();
3283 Point compLocation = c.getLocationOnScreen();
3284 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3285 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3286
3287 // Adjust for bottom edge being offscreen
3288 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3289 dy = gcBounds.y + gcBounds.height - windowSize.height;
3290 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3291 dx = compLocation.x + compSize.width;
3292 } else {
3293 dx = compLocation.x - windowSize.width;
3294 }
3295 }
3296 }
3297
3298 // Avoid being placed off the edge of the screen:
3299 // bottom
3300 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3301 dy = gcBounds.y + gcBounds.height - windowSize.height;
3302 }
3303 // top
3304 if (dy < gcBounds.y) {
3305 dy = gcBounds.y;
3306 }
3307 // right
3308 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3309 dx = gcBounds.x + gcBounds.width - windowSize.width;
3310 }
3311 // left
3312 if (dx < gcBounds.x) {
3313 dx = gcBounds.x;
3314 }
3315
3316 setLocation(dx, dy);
3317 }
3318
3319 /**
3320 * Overridden from Component. Top-level Windows should not propagate a
3321 * MouseWheelEvent beyond themselves into their owning Windows.
3322 */
3323 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3324
3325 /**
3326 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3327 */
3328 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3329
3330 /**
3331 * Creates a new strategy for multi-buffering on this component.
3332 * Multi-buffering is useful for rendering performance. This method
3333 * attempts to create the best strategy available with the number of
3334 * buffers supplied. It will always create a {@code BufferStrategy}
3335 * with that number of buffers.
3336 * A page-flipping strategy is attempted first, then a blitting strategy
3337 * using accelerated buffers. Finally, an unaccelerated blitting
3338 * strategy is used.
3339 * <p>
3340 * Each time this method is called,
3341 * the existing buffer strategy for this component is discarded.
3342 * @param numBuffers number of buffers to create
3343 * @exception IllegalArgumentException if numBuffers is less than 1.
3344 * @exception IllegalStateException if the component is not displayable
3345 * @see #isDisplayable
3346 * @see #getBufferStrategy
3347 * @since 1.4
3348 */
3349 public void createBufferStrategy(int numBuffers) {
3350 super.createBufferStrategy(numBuffers);
3351 }
3352
3353 /**
3354 * Creates a new strategy for multi-buffering on this component with the
3355 * required buffer capabilities. This is useful, for example, if only
3356 * accelerated memory or page flipping is desired (as specified by the
3357 * buffer capabilities).
3358 * <p>
3359 * Each time this method
3360 * is called, the existing buffer strategy for this component is discarded.
3361 * @param numBuffers number of buffers to create, including the front buffer
3362 * @param caps the required capabilities for creating the buffer strategy;
3363 * cannot be {@code null}
3364 * @exception AWTException if the capabilities supplied could not be
3365 * supported or met; this may happen, for example, if there is not enough
3366 * accelerated memory currently available, or if page flipping is specified
3367 * but not possible.
3368 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3369 * caps is {@code null}
3370 * @see #getBufferStrategy
3371 * @since 1.4
3372 */
3373 public void createBufferStrategy(int numBuffers,
3374 BufferCapabilities caps) throws AWTException {
3375 super.createBufferStrategy(numBuffers, caps);
3376 }
3377
3378 /**
3379 * Returns the {@code BufferStrategy} used by this component. This
3380 * method will return null if a {@code BufferStrategy} has not yet
3381 * been created or has been disposed.
3382 *
3383 * @return the buffer strategy used by this component
3384 * @see #createBufferStrategy
3385 * @since 1.4
3386 */
3387 public BufferStrategy getBufferStrategy() {
3388 return super.getBufferStrategy();
3389 }
3390
3391 Component getTemporaryLostComponent() {
3392 return temporaryLostComponent;
3393 }
3394 Component setTemporaryLostComponent(Component component) {
3395 Component previousComp = temporaryLostComponent;
3396 // Check that "component" is an acceptable focus owner and don't store it otherwise
3397 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3398 if (component == null || component.canBeFocusOwner()) {
3399 temporaryLostComponent = component;
3400 } else {
3401 temporaryLostComponent = null;
3402 }
3403 return previousComp;
3404 }
3405
3406 /**
3407 * Checks whether this window can contain focus owner.
3408 * Verifies that it is focusable and as container it can container focus owner.
3409 * @since 1.5
3410 */
3411 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3412 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3413 }
3414
3415 private volatile boolean locationByPlatform = locationByPlatformProp;
3416
3417
3418 /**
3419 * Sets whether this Window should appear at the default location for the
3420 * native windowing system or at the current location (returned by
3421 * {@code getLocation}) the next time the Window is made visible.
3422 * This behavior resembles a native window shown without programmatically
3423 * setting its location. Most windowing systems cascade windows if their
3424 * locations are not explicitly set. The actual location is determined once the
3425 * window is shown on the screen.
3426 * <p>
3427 * This behavior can also be enabled by setting the System Property
3428 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3429 * take precedence.
3430 * <p>
3431 * Calls to {@code setVisible}, {@code setLocation} and
3432 * {@code setBounds} after calling {@code setLocationByPlatform} clear
3433 * this property of the Window.
3434 * <p>
3435 * For example, after the following code is executed:
3436 * <pre>
3437 * setLocationByPlatform(true);
3438 * setVisible(true);
3439 * boolean flag = isLocationByPlatform();
3440 * </pre>
3441 * The window will be shown at platform's default location and
3442 * {@code flag} will be {@code false}.
3443 * <p>
3444 * In the following sample:
3445 * <pre>
3446 * setLocationByPlatform(true);
3447 * setLocation(10, 10);
3448 * boolean flag = isLocationByPlatform();
3449 * setVisible(true);
3450 * </pre>
3451 * The window will be shown at (10, 10) and {@code flag} will be
3452 * {@code false}.
3453 *
3454 * @param locationByPlatform {@code true} if this Window should appear
3455 * at the default location, {@code false} if at the current location
3456 * @throws IllegalComponentStateException if the window
3457 * is showing on screen and locationByPlatform is {@code true}.
3458 * @see #setLocation
3459 * @see #isShowing
3460 * @see #setVisible
3461 * @see #isLocationByPlatform
3462 * @see java.lang.System#getProperty(String)
3463 * @since 1.5
3464 */
3465 public void setLocationByPlatform(boolean locationByPlatform) {
3466 synchronized (getTreeLock()) {
3467 if (locationByPlatform && isShowing()) {
3468 throw new IllegalComponentStateException("The window is showing on screen.");
3469 }
3470 this.locationByPlatform = locationByPlatform;
3471 }
3472 }
3473
3474 /**
3475 * Returns {@code true} if this Window will appear at the default location
3476 * for the native windowing system the next time this Window is made visible.
3477 * This method always returns {@code false} if the Window is showing on the
3478 * screen.
3479 *
3480 * @return whether this Window will appear at the default location
3481 * @see #setLocationByPlatform
3482 * @see #isShowing
3483 * @since 1.5
3484 */
3485 public boolean isLocationByPlatform() {
3486 return locationByPlatform;
3487 }
3488
3489 /**
3490 * {@inheritDoc}
3491 * <p>
3492 * The {@code width} or {@code height} values
3493 * are automatically enlarged if either is less than
3494 * the minimum size as specified by previous call to
3495 * {@code setMinimumSize}.
3496 * <p>
3497 * The method changes the geometry-related data. Therefore,
3498 * the native windowing system may ignore such requests, or it may modify
3499 * the requested data, so that the {@code Window} object is placed and sized
3500 * in a way that corresponds closely to the desktop settings.
3501 *
3502 * @see #getBounds
3503 * @see #setLocation(int, int)
3504 * @see #setLocation(Point)
3505 * @see #setSize(int, int)
3506 * @see #setSize(Dimension)
3507 * @see #setMinimumSize
3508 * @see #setLocationByPlatform
3509 * @see #isLocationByPlatform
3510 * @since 1.6
3511 */
3512 public void setBounds(int x, int y, int width, int height) {
3513 synchronized (getTreeLock()) {
3514 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3515 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3516 {
3517 locationByPlatform = false;
3518 }
3519 super.setBounds(x, y, width, height);
3520 }
3521 }
3522
3523 /**
3524 * {@inheritDoc}
3525 * <p>
3526 * The {@code r.width} or {@code r.height} values
3527 * will be automatically enlarged if either is less than
3528 * the minimum size as specified by previous call to
3529 * {@code setMinimumSize}.
3530 * <p>
3531 * The method changes the geometry-related data. Therefore,
3532 * the native windowing system may ignore such requests, or it may modify
3533 * the requested data, so that the {@code Window} object is placed and sized
3534 * in a way that corresponds closely to the desktop settings.
3535 *
3536 * @see #getBounds
3537 * @see #setLocation(int, int)
3538 * @see #setLocation(Point)
3539 * @see #setSize(int, int)
3540 * @see #setSize(Dimension)
3541 * @see #setMinimumSize
3542 * @see #setLocationByPlatform
3543 * @see #isLocationByPlatform
3544 * @since 1.6
3545 */
3546 public void setBounds(Rectangle r) {
3547 setBounds(r.x, r.y, r.width, r.height);
3548 }
3549
3550 /**
3551 * Determines whether this component will be displayed on the screen.
3552 * @return {@code true} if the component and all of its ancestors
3553 * until a toplevel window are visible, {@code false} otherwise
3554 */
3555 boolean isRecursivelyVisible() {
3556 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3557 // We're overriding isRecursivelyVisible to implement this policy.
3558 return visible;
3559 }
3560
3561
3562 // ******************** SHAPES & TRANSPARENCY CODE ********************
3563
3564 /**
3565 * Returns the opacity of the window.
3566 *
3567 * @return the opacity of the window
3568 *
3569 * @see Window#setOpacity(float)
3570 * @see GraphicsDevice.WindowTranslucency
3571 *
3572 * @since 1.7
3573 */
3574 public float getOpacity() {
3575 return opacity;
3576 }
3577
3578 /**
3579 * Sets the opacity of the window.
3580 * <p>
3581 * The opacity value is in the range [0..1]. Note that setting the opacity
3582 * level of 0 may or may not disable the mouse event handling on this
3583 * window. This is a platform-dependent behavior.
3584 * <p>
3585 * The following conditions must be met in order to set the opacity value
3586 * less than {@code 1.0f}:
3587 * <ul>
3588 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3589 * translucency must be supported by the underlying system
3590 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3591 * and {@link Dialog#setUndecorated})
3592 * <li>The window must not be in full-screen mode (see {@link
3593 * GraphicsDevice#setFullScreenWindow(Window)})
3594 * </ul>
3595 * <p>
3596 * If the requested opacity value is less than {@code 1.0f}, and any of the
3597 * above conditions are not met, the window opacity will not change,
3598 * and the {@code IllegalComponentStateException} will be thrown.
3599 * <p>
3600 * The translucency levels of individual pixels may also be effected by the
3601 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3602 * current shape of this window (see {@link #setShape(Shape)}).
3603 *
3604 * @param opacity the opacity level to set to the window
3605 *
3606 * @throws IllegalArgumentException if the opacity is out of the range
3607 * [0..1]
3608 * @throws IllegalComponentStateException if the window is decorated and
3609 * the opacity is less than {@code 1.0f}
3610 * @throws IllegalComponentStateException if the window is in full screen
3611 * mode, and the opacity is less than {@code 1.0f}
3612 * @throws UnsupportedOperationException if the {@code
3613 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3614 * translucency is not supported and the opacity is less than
3615 * {@code 1.0f}
3616 *
3617 * @see Window#getOpacity
3618 * @see Window#setBackground(Color)
3619 * @see Window#setShape(Shape)
3620 * @see Frame#isUndecorated
3621 * @see Dialog#isUndecorated
3622 * @see GraphicsDevice.WindowTranslucency
3623 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3624 *
3625 * @since 1.7
3626 */
3627 @SuppressWarnings("deprecation")
3628 public void setOpacity(float opacity) {
3629 synchronized (getTreeLock()) {
3630 if (opacity < 0.0f || opacity > 1.0f) {
3631 throw new IllegalArgumentException(
3632 "The value of opacity should be in the range [0.0f .. 1.0f].");
3633 }
3634 if (opacity < 1.0f) {
3635 GraphicsConfiguration gc = getGraphicsConfiguration();
3636 GraphicsDevice gd = gc.getDevice();
3637 if (gc.getDevice().getFullScreenWindow() == this) {
3638 throw new IllegalComponentStateException(
3639 "Setting opacity for full-screen window is not supported.");
3640 }
3641 if (!gd.isWindowTranslucencySupported(
3642 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3643 {
3644 throw new UnsupportedOperationException(
3645 "TRANSLUCENT translucency is not supported.");
3646 }
3647 }
3648 this.opacity = opacity;
3649 WindowPeer peer = (WindowPeer) this.peer;
3650 if (peer != null) {
3651 peer.setOpacity(opacity);
3652 }
3653 }
3654 }
3655
3656 /**
3657 * Returns the shape of the window.
3658 *
3659 * The value returned by this method may not be the same as
3660 * previously set with {@code setShape(shape)}, but it is guaranteed
3661 * to represent the same shape.
3662 *
3663 * @return the shape of the window or {@code null} if no
3664 * shape is specified for the window
3665 *
3666 * @see Window#setShape(Shape)
3667 * @see GraphicsDevice.WindowTranslucency
3668 *
3669 * @since 1.7
3670 */
3671 public Shape getShape() {
3672 synchronized (getTreeLock()) {
3673 return shape == null ? null : new Path2D.Float(shape);
3674 }
3675 }
3676
3677 /**
3678 * Sets the shape of the window.
3679 * <p>
3680 * Setting a shape cuts off some parts of the window. Only the parts that
3681 * belong to the given {@link Shape} remain visible and clickable. If
3682 * the shape argument is {@code null}, this method restores the default
3683 * shape, making the window rectangular on most platforms.
3684 * <p>
3685 * The following conditions must be met to set a non-null shape:
3686 * <ul>
3687 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3688 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3689 * underlying system
3690 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3691 * and {@link Dialog#setUndecorated})
3692 * <li>The window must not be in full-screen mode (see {@link
3693 * GraphicsDevice#setFullScreenWindow(Window)})
3694 * </ul>
3695 * <p>
3696 * If the requested shape is not {@code null}, and any of the above
3697 * conditions are not met, the shape of this window will not change,
3698 * and either the {@code UnsupportedOperationException} or {@code
3699 * IllegalComponentStateException} will be thrown.
3700 * <p>
3701 * The translucency levels of individual pixels may also be effected by the
3702 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3703 * opacity value (see {@link #setOpacity(float)}). See {@link
3704 * GraphicsDevice.WindowTranslucency} for more details.
3705 *
3706 * @param shape the shape to set to the window
3707 *
3708 * @throws IllegalComponentStateException if the shape is not {@code
3709 * null} and the window is decorated
3710 * @throws IllegalComponentStateException if the shape is not {@code
3711 * null} and the window is in full-screen mode
3712 * @throws UnsupportedOperationException if the shape is not {@code
3713 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3714 * PERPIXEL_TRANSPARENT} translucency is not supported
3715 *
3716 * @see Window#getShape()
3717 * @see Window#setBackground(Color)
3718 * @see Window#setOpacity(float)
3719 * @see Frame#isUndecorated
3720 * @see Dialog#isUndecorated
3721 * @see GraphicsDevice.WindowTranslucency
3722 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3723 *
3724 * @since 1.7
3725 */
3726 public void setShape(Shape shape) {
3727 synchronized (getTreeLock()) {
3728 if (shape != null) {
3729 GraphicsConfiguration gc = getGraphicsConfiguration();
3730 GraphicsDevice gd = gc.getDevice();
3731 if (gc.getDevice().getFullScreenWindow() == this) {
3732 throw new IllegalComponentStateException(
3733 "Setting shape for full-screen window is not supported.");
3734 }
3735 if (!gd.isWindowTranslucencySupported(
3736 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3737 {
3738 throw new UnsupportedOperationException(
3739 "PERPIXEL_TRANSPARENT translucency is not supported.");
3740 }
3741 }
3742 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3743 WindowPeer peer = (WindowPeer) this.peer;
3744 if (peer != null) {
3745 peer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3746 }
3747 }
3748 }
3749
3750 /**
3751 * Gets the background color of this window.
3752 * <p>
3753 * Note that the alpha component of the returned color indicates whether
3754 * the window is in the non-opaque (per-pixel translucent) mode.
3755 *
3756 * @return this component's background color
3757 *
3758 * @see Window#setBackground(Color)
3759 * @see Window#isOpaque
3760 * @see GraphicsDevice.WindowTranslucency
3761 */
3762 @Override
3763 public Color getBackground() {
3764 return super.getBackground();
3765 }
3766
3767 /**
3768 * Sets the background color of this window.
3769 * <p>
3770 * If the windowing system supports the {@link
3771 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3772 * translucency, the alpha component of the given background color
3773 * may effect the mode of operation for this window: it indicates whether
3774 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3775 * (alpha is less than {@code 1.0f}). If the given background color is
3776 * {@code null}, the window is considered completely opaque.
3777 * <p>
3778 * All the following conditions must be met to enable the per-pixel
3779 * transparency mode for this window:
3780 * <ul>
3781 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3782 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3783 * device where this window is located
3784 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3785 * and {@link Dialog#setUndecorated})
3786 * <li>The window must not be in full-screen mode (see {@link
3787 * GraphicsDevice#setFullScreenWindow(Window)})
3788 * </ul>
3789 * <p>
3790 * If the alpha component of the requested background color is less than
3791 * {@code 1.0f}, and any of the above conditions are not met, the background
3792 * color of this window will not change, the alpha component of the given
3793 * background color will not affect the mode of operation for this window,
3794 * and either the {@code UnsupportedOperationException} or {@code
3795 * IllegalComponentStateException} will be thrown.
3796 * <p>
3797 * When the window is per-pixel translucent, the drawing sub-system
3798 * respects the alpha value of each individual pixel. If a pixel gets
3799 * painted with the alpha color component equal to zero, it becomes
3800 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3801 * pixel is fully opaque. Interim values of the alpha color component make
3802 * the pixel semi-transparent. In this mode, the background of the window
3803 * gets painted with the alpha value of the given background color. If the
3804 * alpha value of the argument of this method is equal to {@code 0}, the
3805 * background is not painted at all.
3806 * <p>
3807 * The actual level of translucency of a given pixel also depends on window
3808 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3809 * this window (see {@link #setShape(Shape)}).
3810 * <p>
3811 * Note that painting a pixel with the alpha value of {@code 0} may or may
3812 * not disable the mouse event handling on this pixel. This is a
3813 * platform-dependent behavior. To make sure the mouse events do not get
3814 * dispatched to a particular pixel, the pixel must be excluded from the
3815 * shape of the window.
3816 * <p>
3817 * Enabling the per-pixel translucency mode may change the graphics
3818 * configuration of this window due to the native platform requirements.
3819 *
3820 * @param bgColor the color to become this window's background color.
3821 *
3822 * @throws IllegalComponentStateException if the alpha value of the given
3823 * background color is less than {@code 1.0f} and the window is decorated
3824 * @throws IllegalComponentStateException if the alpha value of the given
3825 * background color is less than {@code 1.0f} and the window is in
3826 * full-screen mode
3827 * @throws UnsupportedOperationException if the alpha value of the given
3828 * background color is less than {@code 1.0f} and {@link
3829 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3830 * PERPIXEL_TRANSLUCENT} translucency is not supported
3831 *
3832 * @see Window#getBackground
3833 * @see Window#isOpaque
3834 * @see Window#setOpacity(float)
3835 * @see Window#setShape(Shape)
3836 * @see Frame#isUndecorated
3837 * @see Dialog#isUndecorated
3838 * @see GraphicsDevice.WindowTranslucency
3839 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3840 * @see GraphicsConfiguration#isTranslucencyCapable()
3841 */
3842 @Override
3843 public void setBackground(Color bgColor) {
3844 Color oldBg = getBackground();
3845 super.setBackground(bgColor);
3846 if (oldBg != null && oldBg.equals(bgColor)) {
3847 return;
3848 }
3849 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3850 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3851 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3852 GraphicsConfiguration gc = getGraphicsConfiguration();
3853 GraphicsDevice gd = gc.getDevice();
3854 if (gc.getDevice().getFullScreenWindow() == this) {
3855 throw new IllegalComponentStateException(
3856 "Making full-screen window non opaque is not supported.");
3857 }
3858 if (!gc.isTranslucencyCapable()) {
3859 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3860 if (capableGC == null) {
3861 throw new UnsupportedOperationException(
3862 "PERPIXEL_TRANSLUCENT translucency is not supported");
3863 }
3864 setGraphicsConfiguration(capableGC);
3865 }
3866 setLayersOpaque(this, false);
3867 } else if ((oldAlpha < 255) && (alpha == 255)) {
3868 setLayersOpaque(this, true);
3869 }
3870 WindowPeer peer = (WindowPeer) this.peer;
3871 if (peer != null) {
3872 peer.setOpaque(alpha == 255);
3873 }
3874 }
3875
3876 /**
3877 * Indicates if the window is currently opaque.
3878 * <p>
3879 * The method returns {@code false} if the background color of the window
3880 * is not {@code null} and the alpha component of the color is less than
3881 * {@code 1.0f}. The method returns {@code true} otherwise.
3882 *
3883 * @return {@code true} if the window is opaque, {@code false} otherwise
3884 *
3885 * @see Window#getBackground
3886 * @see Window#setBackground(Color)
3887 * @since 1.7
3888 */
3889 @Override
3890 public boolean isOpaque() {
3891 Color bg = getBackground();
3892 return bg != null ? bg.getAlpha() == 255 : true;
3893 }
3894
3895 private void updateWindow() {
3896 synchronized (getTreeLock()) {
3897 WindowPeer peer = (WindowPeer) this.peer;
3898 if (peer != null) {
3899 peer.updateWindow();
3900 }
3901 }
3902 }
3903
3904 /**
3905 * {@inheritDoc}
3906 *
3907 * @since 1.7
3908 */
3909 @Override
3910 public void paint(Graphics g) {
3911 if (!isOpaque()) {
3912 Graphics gg = g.create();
3913 try {
3914 if (gg instanceof Graphics2D) {
3915 gg.setColor(getBackground());
3916 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3917 gg.fillRect(0, 0, getWidth(), getHeight());
3918 }
3919 } finally {
3920 gg.dispose();
3921 }
3922 }
3923 super.paint(g);
3924 }
3925
3926 private static void setLayersOpaque(Component component, boolean isOpaque) {
3927 // Shouldn't use instanceof to avoid loading Swing classes
3928 // if it's a pure AWT application.
3929 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3930 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3931 javax.swing.JRootPane root = rpc.getRootPane();
3932 javax.swing.JLayeredPane lp = root.getLayeredPane();
3933 Container c = root.getContentPane();
3934 javax.swing.JComponent content =
3935 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3936 lp.setOpaque(isOpaque);
3937 root.setOpaque(isOpaque);
3938 if (content != null) {
3939 content.setOpaque(isOpaque);
3940
3941 // Iterate down one level to see whether we have a JApplet
3942 // (which is also a RootPaneContainer) which requires processing
3943 int numChildren = content.getComponentCount();
3944 if (numChildren > 0) {
3945 Component child = content.getComponent(0);
3946 // It's OK to use instanceof here because we've
3947 // already loaded the RootPaneContainer class by now
3948 if (child instanceof javax.swing.RootPaneContainer) {
3949 setLayersOpaque(child, isOpaque);
3950 }
3951 }
3952 }
3953 }
3954 }
3955
3956
3957 // ************************** MIXING CODE *******************************
3958
3959 // A window has an owner, but it does NOT have a container
3960 @Override
3961 final Container getContainer() {
3962 return null;
3963 }
3964
3965 /**
3966 * Applies the shape to the component
3967 * @param shape Shape to be applied to the component
3968 */
3969 @Override
3970 final void applyCompoundShape(Region shape) {
3971 // The shape calculated by mixing code is not intended to be applied
3972 // to windows or frames
3973 }
3974
3975 @Override
3976 final void applyCurrentShape() {
3977 // The shape calculated by mixing code is not intended to be applied
3978 // to windows or frames
3979 }
3980
3981 @Override
3982 final void mixOnReshaping() {
3983 // The shape calculated by mixing code is not intended to be applied
3984 // to windows or frames
3985 }
3986
3987 @Override
3988 final Point getLocationOnWindow() {
3989 return new Point(0, 0);
3990 }
3991
3992 // ****************** END OF MIXING CODE ********************************
3993
3994 /**
3995 * Limit the given double value with the given range.
3996 */
3997 private static double limit(double value, double min, double max) {
3998 value = Math.max(value, min);
3999 value = Math.min(value, max);
4000 return value;
4001 }
4002
4003 /**
4004 * Calculate the position of the security warning.
4005 *
4006 * This method gets the window location/size as reported by the native
4007 * system since the locally cached values may represent outdated data.
4008 *
4009 * The method is used from the native code, or via AWTAccessor.
4010 *
4011 * NOTE: this method is invoked on the toolkit thread, and therefore is not
4012 * supposed to become public/user-overridable.
4013 */
4014 private Point2D calculateSecurityWarningPosition(double x, double y,
4015 double w, double h)
4016 {
4017 // The position according to the spec of SecurityWarning.setPosition()
4018 double wx = x + w * securityWarningAlignmentX + securityWarningPointX;
4019 double wy = y + h * securityWarningAlignmentY + securityWarningPointY;
4020
4021 // First, make sure the warning is not too far from the window bounds
4022 wx = Window.limit(wx,
4023 x - securityWarningWidth - 2,
4024 x + w + 2);
4025 wy = Window.limit(wy,
4026 y - securityWarningHeight - 2,
4027 y + h + 2);
4028
4029 // Now make sure the warning window is visible on the screen
4030 GraphicsConfiguration graphicsConfig =
4031 getGraphicsConfiguration_NoClientCode();
4032 Rectangle screenBounds = graphicsConfig.getBounds();
4033 Insets screenInsets =
4034 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
4035
4036 wx = Window.limit(wx,
4037 screenBounds.x + screenInsets.left,
4038 screenBounds.x + screenBounds.width - screenInsets.right
4039 - securityWarningWidth);
4040 wy = Window.limit(wy,
4041 screenBounds.y + screenInsets.top,
4042 screenBounds.y + screenBounds.height - screenInsets.bottom
4043 - securityWarningHeight);
4044
4045 return new Point2D.Double(wx, wy);
4046 }
4047
4048 static {
4049 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
4050 public float getOpacity(Window window) {
4051 return window.opacity;
4052 }
4053 public void setOpacity(Window window, float opacity) {
4054 window.setOpacity(opacity);
4055 }
4056 public Shape getShape(Window window) {
4057 return window.getShape();
4058 }
4059 public void setShape(Window window, Shape shape) {
4060 window.setShape(shape);
4061 }
4062 public void setOpaque(Window window, boolean opaque) {
4063 Color bg = window.getBackground();
4064 if (bg == null) {
4065 bg = new Color(0, 0, 0, 0);
4066 }
4067 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(),
4068 opaque ? 255 : 0));
4069 }
4070 public void updateWindow(Window window) {
4071 window.updateWindow();
4072 }
4073
4074 public Dimension getSecurityWarningSize(Window window) {
4075 return new Dimension(window.securityWarningWidth,
4076 window.securityWarningHeight);
4077 }
4078
4079 public void setSecurityWarningSize(Window window, int width, int height)
4080 {
4081 window.securityWarningWidth = width;
4082 window.securityWarningHeight = height;
4083 }
4084
4085 public void setSecurityWarningPosition(Window window,
4086 Point2D point, float alignmentX, float alignmentY)
4087 {
4088 window.securityWarningPointX = point.getX();
4089 window.securityWarningPointY = point.getY();
4090 window.securityWarningAlignmentX = alignmentX;
4091 window.securityWarningAlignmentY = alignmentY;
4092
4093 synchronized (window.getTreeLock()) {
4094 WindowPeer peer = (WindowPeer) window.peer;
4095 if (peer != null) {
4096 peer.repositionSecurityWarning();
4097 }
4098 }
4099 }
4100
4101 public Point2D calculateSecurityWarningPosition(Window window,
4102 double x, double y, double w, double h)
4103 {
4104 return window.calculateSecurityWarningPosition(x, y, w, h);
4105 }
4106
4107 public void setLWRequestStatus(Window changed, boolean status) {
4108 changed.syncLWRequests = status;
4109 }
4110
4111 public boolean isAutoRequestFocus(Window w) {
4112 return w.autoRequestFocus;
4113 }
4114
4115 public boolean isTrayIconWindow(Window w) {
4116 return w.isTrayIconWindow;
4117 }
4118
4119 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4120 w.isTrayIconWindow = isTrayIconWindow;
4121 }
4122 }); // WindowAccessor
4123 } // static
4124
4125 // a window doesn't need to be updated in the Z-order.
4126 @Override
4127 void updateZOrder() {}
4128
4129 } // class Window
4130
4131
4132 /**
4133 * This class is no longer used, but is maintained for Serialization
4134 * backward-compatibility.
4135 */
4136 class FocusManager implements java.io.Serializable {
4137 Container focusRoot;
4138 Component focusOwner;
4139
4140 /*
4141 * JDK 1.1 serialVersionUID
4142 */
4143 static final long serialVersionUID = 2491878825643557906L;
4144 }