1 /*
2 * Copyright (c) 2002, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package sun.awt.X11;
26
27 import java.awt.AWTEvent;
28 import java.awt.AWTException;
29 import java.awt.BufferCapabilities;
30 import java.awt.Color;
31 import java.awt.Component;
32 import java.awt.Container;
33 import java.awt.Cursor;
34 import java.awt.Dimension;
35 import java.awt.Font;
36 import java.awt.FontMetrics;
37 import java.awt.Graphics;
38 import java.awt.GraphicsConfiguration;
39 import java.awt.Image;
40 import java.awt.Insets;
41 import java.awt.Rectangle;
42 import java.awt.SystemColor;
43 import java.awt.Toolkit;
44 import java.awt.Window;
45 import java.awt.dnd.DropTarget;
46 import java.awt.dnd.peer.DropTargetPeer;
47 import java.awt.event.FocusEvent;
48 import java.awt.event.InputEvent;
49 import java.awt.event.InputMethodEvent;
50 import java.awt.event.KeyEvent;
51 import java.awt.event.MouseEvent;
52 import java.awt.event.MouseWheelEvent;
53 import java.awt.event.PaintEvent;
54 import java.awt.event.WindowEvent;
55 import java.awt.event.InvocationEvent;
56 import java.awt.image.ImageObserver;
57 import java.awt.image.ImageProducer;
58 import java.awt.image.VolatileImage;
59 import java.awt.peer.ComponentPeer;
60 import java.awt.peer.ContainerPeer;
61 import java.lang.reflect.*;
62 import java.security.*;
63 import java.util.Collection;
64 import java.util.Objects;
65 import java.util.Set;
66 import sun.util.logging.PlatformLogger;
67 import sun.awt.*;
68 import sun.awt.event.IgnorePaintEvent;
69 import sun.awt.image.SunVolatileImage;
70 import sun.awt.image.ToolkitImage;
71 import sun.java2d.BackBufferCapsProvider;
72 import sun.java2d.pipe.Region;
73
74
75 public class XComponentPeer extends XWindow implements ComponentPeer, DropTargetPeer,
76 BackBufferCapsProvider
77 {
78 private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XComponentPeer");
79 private static final PlatformLogger buffersLog = PlatformLogger.getLogger("sun.awt.X11.XComponentPeer.multibuffer");
80 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.awt.X11.focus.XComponentPeer");
81 private static final PlatformLogger fontLog = PlatformLogger.getLogger("sun.awt.X11.font.XComponentPeer");
82 private static final PlatformLogger enableLog = PlatformLogger.getLogger("sun.awt.X11.enable.XComponentPeer");
83 private static final PlatformLogger shapeLog = PlatformLogger.getLogger("sun.awt.X11.shape.XComponentPeer");
84
85 boolean paintPending = false;
86 boolean isLayouting = false;
87 private boolean enabled;
88
89 // Actually used only by XDecoratedPeer
90 protected int boundsOperation;
91
92 Color foreground;
93 Color background;
94
95 // Colors calculated as on Motif using MotifColorUtilties.
96 // If you use these, call updateMotifColors() in the peer's Constructor and
97 // setBackground(). Examples are XCheckboxPeer and XButtonPeer.
98 Color darkShadow;
99 Color lightShadow;
100 Color selectColor;
101
102 Font font;
103 private long backBuffer = 0;
104 private VolatileImage xBackBuffer = null;
105
106 static Color[] systemColors;
107
108 XComponentPeer() {
109 }
110
111 XComponentPeer (XCreateWindowParams params) {
112 super(params);
113 }
114
115 XComponentPeer(Component target, long parentWindow, Rectangle bounds) {
116 super(target, parentWindow, bounds);
117 }
118
119 /**
120 * Standard peer constructor, with corresponding Component
121 */
122 XComponentPeer(Component target) {
123 super(target);
124 }
125
126
127 void preInit(XCreateWindowParams params) {
128 super.preInit(params);
129 boundsOperation = DEFAULT_OPERATION;
130 }
131 void postInit(XCreateWindowParams params) {
132 super.postInit(params);
133
134 pSetCursor(target.getCursor());
135
136 foreground = target.getForeground();
137 background = target.getBackground();
138 font = target.getFont();
139
140 if (isInitialReshape()) {
141 Rectangle r = target.getBounds();
142 reshape(r.x, r.y, r.width, r.height);
143 }
144
145 setEnabled(target.isEnabled());
146
147 if (target.isVisible()) {
148 setVisible(true);
149 }
150 }
151
152 protected boolean isInitialReshape() {
153 return true;
154 }
155
156 public void reparent(ContainerPeer newNativeParent) {
157 XComponentPeer newPeer = (XComponentPeer)newNativeParent;
158 XToolkit.awtLock();
159 try {
160 XlibWrapper.XReparentWindow(XToolkit.getDisplay(), getWindow(), newPeer.getContentWindow(), x, y);
161 parentWindow = newPeer;
162 } finally {
163 XToolkit.awtUnlock();
164 }
165 }
166 public boolean isReparentSupported() {
167 return System.getProperty("sun.awt.X11.XComponentPeer.reparentNotSupported", "false").equals("false");
168 }
169
170 public boolean isObscured() {
171 Container container = (target instanceof Container) ?
172 (Container)target : target.getParent();
173
174 if (container == null) {
175 return true;
176 }
177
178 Container parent;
179 while ((parent = container.getParent()) != null) {
180 container = parent;
181 }
182
183 if (container instanceof Window) {
184 XWindowPeer wpeer = (XWindowPeer)(container.getPeer());
185 if (wpeer != null) {
186 return (wpeer.winAttr.visibilityState !=
187 XWindowAttributesData.AWT_UNOBSCURED);
188 }
189 }
190 return true;
191 }
192
193 public boolean canDetermineObscurity() {
194 return true;
195 }
196
197 /*************************************************
198 * FOCUS STUFF
199 *************************************************/
200
201 /**
202 * Keeps the track of focused state of the _NATIVE_ window
203 */
204 boolean bHasFocus = false;
205
206 /**
207 * Descendants should use this method to determine whether or not native window
208 * has focus.
209 */
210 final public boolean hasFocus() {
211 return bHasFocus;
212 }
213
214 /**
215 * Called when component receives focus
216 */
217 public void focusGained(FocusEvent e) {
218 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
219 focusLog.fine("{0}", e);
220 }
221 bHasFocus = true;
222 }
223
224 /**
225 * Called when component loses focus
226 */
227 public void focusLost(FocusEvent e) {
228 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
229 focusLog.fine("{0}", e);
230 }
231 bHasFocus = false;
232 }
233
234 public boolean isFocusable() {
235 /* should be implemented by other sub-classes */
236 return false;
237 }
238
239 private static Class<?> seClass;
240 private static Constructor<?> seCtor;
241
242 final static AWTEvent wrapInSequenced(AWTEvent event) {
243 try {
244 if (seClass == null) {
245 seClass = Class.forName("java.awt.SequencedEvent");
246 }
247
248 if (seCtor == null) {
249 seCtor = AccessController.doPrivileged(new
250 PrivilegedExceptionAction<Constructor<?>>() {
251 public Constructor<?> run() throws Exception {
252 Constructor<?> ctor = seClass.getConstructor(
253 new Class<?>[] { AWTEvent.class });
254 ctor.setAccessible(true);
255 return ctor;
256 }
257 });
258 }
259
260 return (AWTEvent) seCtor.newInstance(new Object[] { event });
261 }
262 catch (ClassNotFoundException e) {
263 throw new NoClassDefFoundError("java.awt.SequencedEvent.");
264 }
265 catch (PrivilegedActionException ex) {
266 throw new NoClassDefFoundError("java.awt.SequencedEvent.");
267 }
268 catch (InstantiationException e) {
269 assert false;
270 }
271 catch (IllegalAccessException e) {
272 assert false;
273 }
274 catch (InvocationTargetException e) {
275 assert false;
276 }
277
278 return null;
279 }
280
281 // TODO: consider moving it to KeyboardFocusManagerPeerImpl
282 final public boolean requestFocus(Component lightweightChild, boolean temporary,
283 boolean focusedWindowChangeAllowed, long time,
284 CausedFocusEvent.Cause cause)
285 {
286 if (XKeyboardFocusManagerPeer.
287 processSynchronousLightweightTransfer(target, lightweightChild, temporary,
288 focusedWindowChangeAllowed, time))
289 {
290 return true;
291 }
292
293 int result = XKeyboardFocusManagerPeer.
294 shouldNativelyFocusHeavyweight(target, lightweightChild,
295 temporary, focusedWindowChangeAllowed,
296 time, cause);
297
298 switch (result) {
299 case XKeyboardFocusManagerPeer.SNFH_FAILURE:
300 return false;
301 case XKeyboardFocusManagerPeer.SNFH_SUCCESS_PROCEED:
302 // Currently we just generate focus events like we deal with lightweight instead of calling
303 // XSetInputFocus on native window
304 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
305 focusLog.finer("Proceeding with request to " +
306 lightweightChild + " in " + target);
307 }
308 /**
309 * The problems with requests in non-focused window arise because shouldNativelyFocusHeavyweight
310 * checks that native window is focused while appropriate WINDOW_GAINED_FOCUS has not yet
311 * been processed - it is in EventQueue. Thus, SNFH allows native request and stores request record
312 * in requests list - and it breaks our requests sequence as first record on WGF should be the last
313 * focus owner which had focus before WLF. So, we should not add request record for such requests
314 * but store this component in mostRecent - and return true as before for compatibility.
315 */
316 Window parentWindow = SunToolkit.getContainingWindow(target);
317 if (parentWindow == null) {
318 return rejectFocusRequestHelper("WARNING: Parent window is null");
319 }
320 XWindowPeer wpeer = (XWindowPeer)parentWindow.getPeer();
321 if (wpeer == null) {
322 return rejectFocusRequestHelper("WARNING: Parent window's peer is null");
323 }
324 /*
325 * Passing null 'actualFocusedWindow' as we don't want to restore focus on it
326 * when a component inside a Frame is requesting focus.
327 * See 6314575 for details.
328 */
329 boolean res = wpeer.requestWindowFocus(null);
330
331 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
332 focusLog.finer("Requested window focus: " + res);
333 }
334 // If parent window can be made focused and has been made focused(synchronously)
335 // then we can proceed with children, otherwise we retreat.
336 if (!(res && parentWindow.isFocused())) {
337 return rejectFocusRequestHelper("Waiting for asynchronous processing of the request");
338 }
339 return XKeyboardFocusManagerPeer.deliverFocus(lightweightChild,
340 target,
341 temporary,
342 focusedWindowChangeAllowed,
343 time, cause);
344 // Motif compatibility code
345 case XKeyboardFocusManagerPeer.SNFH_SUCCESS_HANDLED:
346 // Either lightweight or excessive request - all events are generated.
347 return true;
348 }
349 return false;
350 }
351
352 private boolean rejectFocusRequestHelper(String logMsg) {
353 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
354 focusLog.finer(logMsg);
355 }
356 XKeyboardFocusManagerPeer.removeLastFocusRequest(target);
357 return false;
358 }
359
360 void handleJavaFocusEvent(AWTEvent e) {
361 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
362 focusLog.finer(e.toString());
363 }
364 if (e.getID() == FocusEvent.FOCUS_GAINED) {
365 focusGained((FocusEvent)e);
366 } else {
367 focusLost((FocusEvent)e);
368 }
369 }
370
371 void handleJavaWindowFocusEvent(AWTEvent e) {
372 }
373
374 /*************************************************
375 * END OF FOCUS STUFF
376 *************************************************/
377
378
379
380 public void setVisible(boolean b) {
381 xSetVisible(b);
382 }
383
384 public void hide() {
385 setVisible(false);
386 }
387
388 /**
389 * @see java.awt.peer.ComponentPeer
390 */
391 public void setEnabled(final boolean value) {
392 if (enableLog.isLoggable(PlatformLogger.Level.FINE)) {
393 enableLog.fine("{0}ing {1}", (value ? "Enabl" : "Disabl"), this);
394 }
395 boolean status = value;
396 // If any of our heavyweight ancestors are disable, we should be too
397 // See 6176875 for more information
398 final Container cp = SunToolkit.getNativeContainer(target);
399 if (cp != null) {
400 status &= ((XComponentPeer) cp.getPeer()).isEnabled();
401 }
402 synchronized (getStateLock()) {
403 if (enabled == status) {
404 return;
405 }
406 enabled = status;
407 }
408
409 if (target instanceof Container) {
410 final Component[] list = ((Container) target).getComponents();
411 for (final Component child : list) {
412 final ComponentPeer p = child.getPeer();
413 if (p != null) {
414 p.setEnabled(status && child.isEnabled());
415 }
416 }
417 }
418 repaint();
419 }
420
421 //
422 // public so aw/Window can call it
423 //
424 public final boolean isEnabled() {
425 synchronized (getStateLock()) {
426 return enabled;
427 }
428 }
429
430 @Override
431 public void paint(final Graphics g) {
432 super.paint(g);
433 // allow target to change the picture
434 target.paint(g);
435 }
436
437 public Graphics getGraphics() {
438 return getGraphics(surfaceData, getPeerForeground(), getPeerBackground(), getPeerFont());
439 }
440 public void print(Graphics g) {
441 // clear rect here to emulate X clears rect before Expose
442 g.setColor(target.getBackground());
443 g.fillRect(0, 0, target.getWidth(), target.getHeight());
444 g.setColor(target.getForeground());
445 // paint peer
446 paintPeer(g);
447 // allow target to change the picture
448 target.print(g);
449 }
450
451 public void setBounds(int x, int y, int width, int height, int op) {
452 this.x = x;
453 this.y = y;
454 this.width = width;
455 this.height = height;
456 xSetBounds(x,y,width,height);
457 validateSurface();
458 layout();
459 }
460
461 public void reshape(int x, int y, int width, int height) {
462 setBounds(x, y, width, height, SET_BOUNDS);
463 }
464
465 public void coalescePaintEvent(PaintEvent e) {
466 Rectangle r = e.getUpdateRect();
467 if (!(e instanceof IgnorePaintEvent)) {
468 paintArea.add(r, e.getID());
469 }
470 if (true) {
471 switch(e.getID()) {
472 case PaintEvent.UPDATE:
473 if (log.isLoggable(PlatformLogger.Level.FINER)) {
474 log.finer("XCP coalescePaintEvent : UPDATE : add : x = " +
475 r.x + ", y = " + r.y + ", width = " + r.width + ",height = " + r.height);
476 }
477 return;
478 case PaintEvent.PAINT:
479 if (log.isLoggable(PlatformLogger.Level.FINER)) {
480 log.finer("XCP coalescePaintEvent : PAINT : add : x = " +
481 r.x + ", y = " + r.y + ", width = " + r.width + ",height = " + r.height);
482 }
483 return;
484 }
485 }
486 }
487
488 XWindowPeer getParentTopLevel() {
489 AWTAccessor.ComponentAccessor compAccessor = AWTAccessor.getComponentAccessor();
490 Container parent = (target instanceof Container) ? ((Container)target) : (compAccessor.getParent(target));
491 // Search for parent window
492 while (parent != null && !(parent instanceof Window)) {
493 parent = compAccessor.getParent(parent);
494 }
495 if (parent != null) {
496 return (XWindowPeer)compAccessor.getPeer(parent);
497 } else {
498 return null;
499 }
500 }
501
502 /* This method is intended to be over-ridden by peers to perform user interaction */
503 void handleJavaMouseEvent(MouseEvent e) {
504 switch (e.getID()) {
505 case MouseEvent.MOUSE_PRESSED:
506 if (target == e.getSource() &&
507 !target.isFocusOwner() &&
508 XKeyboardFocusManagerPeer.shouldFocusOnClick(target))
509 {
510 XWindowPeer parentXWindow = getParentTopLevel();
511 Window parentWindow = ((Window)parentXWindow.getTarget());
512 // Simple windows are non-focusable in X terms but focusable in Java terms.
513 // As X-non-focusable they don't receive any focus events - we should generate them
514 // by ourselfves.
515 // if (parentXWindow.isFocusableWindow() /*&& parentXWindow.isSimpleWindow()*/ &&
516 // !(getCurrentNativeFocusedWindow() == parentWindow))
517 // {
518 // setCurrentNativeFocusedWindow(parentWindow);
519 // WindowEvent wfg = new WindowEvent(parentWindow, WindowEvent.WINDOW_GAINED_FOCUS);
520 // parentWindow.dispatchEvent(wfg);
521 // }
522 XKeyboardFocusManagerPeer.requestFocusFor(target, CausedFocusEvent.Cause.MOUSE_EVENT);
523 }
524 break;
525 }
526 }
527
528 /* This method is intended to be over-ridden by peers to perform user interaction */
529 void handleJavaKeyEvent(KeyEvent e) {
530 }
531
532 /* This method is intended to be over-ridden by peers to perform user interaction */
533 void handleJavaMouseWheelEvent(MouseWheelEvent e) {
534 }
535
536
537 /* This method is intended to be over-ridden by peers to perform user interaction */
538 void handleJavaInputMethodEvent(InputMethodEvent e) {
539 }
540
541 void handleF10JavaKeyEvent(KeyEvent e) {
542 if (e.getID() == KeyEvent.KEY_PRESSED && e.getKeyCode() == KeyEvent.VK_F10) {
543 XWindowPeer winPeer = this.getToplevelXWindow();
544 if (winPeer instanceof XFramePeer) {
545 XMenuBarPeer mPeer = ((XFramePeer)winPeer).getMenubarPeer();
546 if (mPeer != null) {
547 mPeer.handleF10KeyPress(e);
548 }
549 }
550 }
551 }
552
553 public void handleEvent(java.awt.AWTEvent e) {
554 if ((e instanceof InputEvent) && !((InputEvent)e).isConsumed() && target.isEnabled()) {
555 if (e instanceof MouseEvent) {
556 if (e instanceof MouseWheelEvent) {
557 handleJavaMouseWheelEvent((MouseWheelEvent) e);
558 }
559 else
560 handleJavaMouseEvent((MouseEvent) e);
561 }
562 else if (e instanceof KeyEvent) {
563 handleF10JavaKeyEvent((KeyEvent)e);
564 handleJavaKeyEvent((KeyEvent)e);
565 }
566 }
567 else if (e instanceof KeyEvent && !((InputEvent)e).isConsumed()) {
568 // even if target is disabled.
569 handleF10JavaKeyEvent((KeyEvent)e);
570 }
571 else if (e instanceof InputMethodEvent) {
572 handleJavaInputMethodEvent((InputMethodEvent) e);
573 }
574
575 int id = e.getID();
576
577 switch(id) {
578 case PaintEvent.PAINT:
579 // Got native painting
580 paintPending = false;
581 // Fallthrough to next statement
582 case PaintEvent.UPDATE:
583 // Skip all painting while layouting and all UPDATEs
584 // while waiting for native paint
585 if (!isLayouting && !paintPending) {
586 paintArea.paint(target,false);
587 }
588 return;
589 case FocusEvent.FOCUS_LOST:
590 case FocusEvent.FOCUS_GAINED:
591 handleJavaFocusEvent(e);
592 break;
593 case WindowEvent.WINDOW_LOST_FOCUS:
594 case WindowEvent.WINDOW_GAINED_FOCUS:
595 handleJavaWindowFocusEvent(e);
596 break;
597 default:
598 break;
599 }
600
601 }
602
603 public Dimension getMinimumSize() {
604 return target.getSize();
605 }
606
607 public Dimension getPreferredSize() {
608 return getMinimumSize();
609 }
610
611 public void layout() {}
612
613 void updateMotifColors(Color bg) {
614 int red = bg.getRed();
615 int green = bg.getGreen();
616 int blue = bg.getBlue();
617
618 darkShadow = new Color(MotifColorUtilities.calculateBottomShadowFromBackground(red,green,blue));
619 lightShadow = new Color(MotifColorUtilities.calculateTopShadowFromBackground(red,green,blue));
620 selectColor= new Color(MotifColorUtilities.calculateSelectFromBackground(red,green,blue));
621 }
622
623 /*
624 * Draw a 3D rectangle using the Motif colors.
625 * "Normal" rectangles have shadows on the bottom.
626 * "Depressed" rectangles (such as pressed buttons) have shadows on the top,
627 * in which case true should be passed for topShadow.
628 */
629 public void drawMotif3DRect(Graphics g,
630 int x, int y, int width, int height,
631 boolean topShadow) {
632 g.setColor(topShadow ? darkShadow : lightShadow);
633 g.drawLine(x, y, x+width, y); // top
634 g.drawLine(x, y+height, x, y); // left
635
636 g.setColor(topShadow ? lightShadow : darkShadow );
637 g.drawLine(x+1, y+height, x+width, y+height); // bottom
638 g.drawLine(x+width, y+height, x+width, y+1); // right
639 }
640
641 @Override
642 public void setBackground(Color c) {
643 if (log.isLoggable(PlatformLogger.Level.FINE)) {
644 log.fine("Set background to " + c);
645 }
646 synchronized (getStateLock()) {
647 if (Objects.equals(background, c)) {
648 return;
649 }
650 background = c;
651 }
652 super.setBackground(c);
653 repaint();
654 }
655
656 @Override
657 public void setForeground(Color c) {
658 if (log.isLoggable(PlatformLogger.Level.FINE)) {
659 log.fine("Set foreground to " + c);
660 }
661 synchronized (getStateLock()) {
662 if (Objects.equals(foreground, c)) {
663 return;
664 }
665 foreground = c;
666 }
667 repaint();
668 }
669
670 /**
671 * Gets the font metrics for the specified font.
672 * @param font the font for which font metrics is to be
673 * obtained
674 * @return the font metrics for <code>font</code>
675 * @see #getFont
676 * @see #getPeer
677 * @see java.awt.peer.ComponentPeer#getFontMetrics(Font)
678 * @see Toolkit#getFontMetrics(Font)
679 * @since JDK1.0
680 */
681 public FontMetrics getFontMetrics(Font font) {
682 if (fontLog.isLoggable(PlatformLogger.Level.FINE)) {
683 fontLog.fine("Getting font metrics for " + font);
684 }
685 return sun.font.FontDesignMetrics.getMetrics(font);
686 }
687
688 @Override
689 public void setFont(Font f) {
690 if (f == null) {
691 f = XWindow.getDefaultFont();
692 }
693 synchronized (getStateLock()) {
694 if (f.equals(font)) {
695 return;
696 }
697 font = f;
698 }
699 // as it stands currently we don't need to do layout since
700 // layout is done in the Component upon setFont.
701 //layout();
702 repaint();
703 }
704
705 public Font getFont() {
706 return font;
707 }
708
709 public void updateCursorImmediately() {
710 XGlobalCursorManager.getCursorManager().updateCursorImmediately();
711 }
712
713 public final void pSetCursor(Cursor cursor) {
714 this.pSetCursor(cursor, true);
715 }
716
717 /*
718 * The method changes the cursor.
719 * @param cursor - a new cursor to change to.
720 * @param ignoreSubComponents - if {@code true} is passed then
721 * the new cursor will be installed on window.
722 * if {@code false} is passed then
723 * subsequent components will try to handle
724 * this request and install their cursor.
725 */
726 //ignoreSubComponents not used here
727 public void pSetCursor(Cursor cursor, boolean ignoreSubComponents) {
728 XToolkit.awtLock();
729 try {
730 long xcursor = XGlobalCursorManager.getCursor(cursor);
731
732 XSetWindowAttributes xwa = new XSetWindowAttributes();
733 xwa.set_cursor(xcursor);
734
735 long valuemask = XConstants.CWCursor;
736
737 XlibWrapper.XChangeWindowAttributes(XToolkit.getDisplay(),getWindow(),valuemask,xwa.pData);
738 XlibWrapper.XFlush(XToolkit.getDisplay());
739 xwa.dispose();
740 } finally {
741 XToolkit.awtUnlock();
742 }
743 }
744
745 public Image createImage(ImageProducer producer) {
746 return new ToolkitImage(producer);
747 }
748
749 public Image createImage(int width, int height) {
750 return graphicsConfig.createAcceleratedImage(target, width, height);
751 }
752
753 public VolatileImage createVolatileImage(int width, int height) {
754 return new SunVolatileImage(target, width, height);
755 }
756
757 public boolean prepareImage(Image img, int w, int h, ImageObserver o) {
758 return Toolkit.getDefaultToolkit().prepareImage(img, w, h, o);
759 }
760
761 public int checkImage(Image img, int w, int h, ImageObserver o) {
762 return Toolkit.getDefaultToolkit().checkImage(img, w, h, o);
763 }
764
765 public Dimension preferredSize() {
766 return getPreferredSize();
767 }
768
769 public Dimension minimumSize() {
770 return getMinimumSize();
771 }
772
773 public Insets getInsets() {
774 return new Insets(0, 0, 0, 0);
775 }
776
777 public void beginValidate() {
778 }
779
780 public void endValidate() {
781 }
782
783
784 /**
785 * DEPRECATED: Replaced by getInsets().
786 */
787
788 public Insets insets() {
789 return getInsets();
790 }
791
792 // Returns true if we are inside begin/endLayout and
793 // are waiting for native painting
794 public boolean isPaintPending() {
795 return paintPending && isLayouting;
796 }
797
798 public boolean handlesWheelScrolling() {
799 return false;
800 }
801
802 public void beginLayout() {
803 // Skip all painting till endLayout
804 isLayouting = true;
805
806 }
807
808 public void endLayout() {
809 if (!paintPending && !paintArea.isEmpty()
810 && !AWTAccessor.getComponentAccessor().getIgnoreRepaint(target))
811 {
812 // if not waiting for native painting repaint damaged area
813 postEvent(new PaintEvent(target, PaintEvent.PAINT,
814 new Rectangle()));
815 }
816 isLayouting = false;
817 }
818
819 public Color getWinBackground() {
820 return getPeerBackground();
821 }
822
823 static int[] getRGBvals(Color c) {
824
825 int rgbvals[] = new int[3];
826
827 rgbvals[0] = c.getRed();
828 rgbvals[1] = c.getGreen();
829 rgbvals[2] = c.getBlue();
830
831 return rgbvals;
832 }
833
834 static final int BACKGROUND_COLOR = 0;
835 static final int HIGHLIGHT_COLOR = 1;
836 static final int SHADOW_COLOR = 2;
837 static final int FOREGROUND_COLOR = 3;
838
839 public Color[] getGUIcolors() {
840 Color c[] = new Color[4];
841 float backb, highb, shadowb, hue, saturation;
842 c[BACKGROUND_COLOR] = getWinBackground();
843 if (c[BACKGROUND_COLOR] == null) {
844 c[BACKGROUND_COLOR] = super.getWinBackground();
845 }
846 if (c[BACKGROUND_COLOR] == null) {
847 c[BACKGROUND_COLOR] = Color.lightGray;
848 }
849
850 int[] rgb = getRGBvals(c[BACKGROUND_COLOR]);
851
852 float[] hsb = Color.RGBtoHSB(rgb[0],rgb[1],rgb[2],null);
853
854 hue = hsb[0];
855 saturation = hsb[1];
856 backb = hsb[2];
857
858
859 /* Calculate Highlight Brightness */
860
861 highb = backb + 0.2f;
862 shadowb = backb - 0.4f;
863 if ((highb > 1.0) ) {
864 if ((1.0 - backb) < 0.05) {
865 highb = shadowb + 0.25f;
866 } else {
867 highb = 1.0f;
868 }
869 } else {
870 if (shadowb < 0.0) {
871 if ((backb - 0.0) < 0.25) {
872 highb = backb + 0.75f;
873 shadowb = highb - 0.2f;
874 } else {
875 shadowb = 0.0f;
876 }
877 }
878 }
879 c[HIGHLIGHT_COLOR] = Color.getHSBColor(hue,saturation,highb);
880 c[SHADOW_COLOR] = Color.getHSBColor(hue,saturation,shadowb);
881
882
883 /*
884 c[SHADOW_COLOR] = c[BACKGROUND_COLOR].darker();
885 int r2 = c[SHADOW_COLOR].getRed();
886 int g2 = c[SHADOW_COLOR].getGreen();
887 int b2 = c[SHADOW_COLOR].getBlue();
888 */
889
890 c[FOREGROUND_COLOR] = getPeerForeground();
891 if (c[FOREGROUND_COLOR] == null) {
892 c[FOREGROUND_COLOR] = Color.black;
893 }
894 /*
895 if ((c[BACKGROUND_COLOR].equals(c[HIGHLIGHT_COLOR]))
896 && (c[BACKGROUND_COLOR].equals(c[SHADOW_COLOR]))) {
897 c[SHADOW_COLOR] = new Color(c[BACKGROUND_COLOR].getRed() + 75,
898 c[BACKGROUND_COLOR].getGreen() + 75,
899 c[BACKGROUND_COLOR].getBlue() + 75);
900 c[HIGHLIGHT_COLOR] = c[SHADOW_COLOR].brighter();
901 } else if (c[BACKGROUND_COLOR].equals(c[HIGHLIGHT_COLOR])) {
902 c[HIGHLIGHT_COLOR] = c[SHADOW_COLOR];
903 c[SHADOW_COLOR] = c[SHADOW_COLOR].darker();
904 }
905 */
906 if (! isEnabled()) {
907 c[BACKGROUND_COLOR] = c[BACKGROUND_COLOR].darker();
908 // Reduce the contrast
909 // Calculate the NTSC gray (NB: REC709 L* might be better!)
910 // for foreground and background; then multiply the foreground
911 // by the average lightness
912
913
914 Color tc = c[BACKGROUND_COLOR];
915 int bg = tc.getRed() * 30 + tc.getGreen() * 59 + tc.getBlue() * 11;
916
917 tc = c[FOREGROUND_COLOR];
918 int fg = tc.getRed() * 30 + tc.getGreen() * 59 + tc.getBlue() * 11;
919
920 float ave = (float) ((fg + bg) / 51000.0);
921 // 255 * 100 * 2
922
923 Color newForeground = new Color((int) (tc.getRed() * ave),
924 (int) (tc.getGreen() * ave),
925 (int) (tc.getBlue() * ave));
926
927 if (newForeground.equals(c[FOREGROUND_COLOR])) {
928 // This probably means the foreground color is black or white
929 newForeground = new Color(ave, ave, ave);
930 }
931 c[FOREGROUND_COLOR] = newForeground;
932
933 }
934
935
936 return c;
937 }
938
939 /**
940 * Returns an array of Colors similar to getGUIcolors(), but using the
941 * System colors. This is useful if pieces of a Component (such as
942 * the integrated scrollbars of a List) should retain the System color
943 * instead of the background color set by Component.setBackground().
944 */
945 static Color[] getSystemColors() {
946 if (systemColors == null) {
947 systemColors = new Color[4];
948 systemColors[BACKGROUND_COLOR] = SystemColor.window;
949 systemColors[HIGHLIGHT_COLOR] = SystemColor.controlLtHighlight;
950 systemColors[SHADOW_COLOR] = SystemColor.controlShadow;
951 systemColors[FOREGROUND_COLOR] = SystemColor.windowText;
952 }
953 return systemColors;
954 }
955
956 /**
957 * Draw a 3D oval.
958 */
959 public void draw3DOval(Graphics g, Color colors[],
960 int x, int y, int w, int h, boolean raised)
961 {
962 Color c = g.getColor();
963 g.setColor(raised ? colors[HIGHLIGHT_COLOR] : colors[SHADOW_COLOR]);
964 g.drawArc(x, y, w, h, 45, 180);
965 g.setColor(raised ? colors[SHADOW_COLOR] : colors[HIGHLIGHT_COLOR]);
966 g.drawArc(x, y, w, h, 225, 180);
967 g.setColor(c);
968 }
969
970 public void draw3DRect(Graphics g, Color colors[],
971 int x, int y, int width, int height, boolean raised)
972 {
973 Color c = g.getColor();
974 g.setColor(raised ? colors[HIGHLIGHT_COLOR] : colors[SHADOW_COLOR]);
975 g.drawLine(x, y, x, y + height);
976 g.drawLine(x + 1, y, x + width - 1, y);
977 g.setColor(raised ? colors[SHADOW_COLOR] : colors[HIGHLIGHT_COLOR]);
978 g.drawLine(x + 1, y + height, x + width, y + height);
979 g.drawLine(x + width, y, x + width, y + height - 1);
980 g.setColor(c);
981 }
982
983 /*
984 * drawXXX() methods are used to print the native components by
985 * rendering the Motif look ourselves.
986 * ToDo(aim): needs to query native motif for more accurate color
987 * information.
988 */
989 void draw3DOval(Graphics g, Color bg,
990 int x, int y, int w, int h, boolean raised)
991 {
992 Color c = g.getColor();
993 Color shadow = bg.darker();
994 Color highlight = bg.brighter();
995
996 g.setColor(raised ? highlight : shadow);
997 g.drawArc(x, y, w, h, 45, 180);
998 g.setColor(raised ? shadow : highlight);
999 g.drawArc(x, y, w, h, 225, 180);
1000 g.setColor(c);
1001 }
1002
1003 void draw3DRect(Graphics g, Color bg,
1004 int x, int y, int width, int height,
1005 boolean raised) {
1006 Color c = g.getColor();
1007 Color shadow = bg.darker();
1008 Color highlight = bg.brighter();
1009
1010 g.setColor(raised ? highlight : shadow);
1011 g.drawLine(x, y, x, y + height);
1012 g.drawLine(x + 1, y, x + width - 1, y);
1013 g.setColor(raised ? shadow : highlight);
1014 g.drawLine(x + 1, y + height, x + width, y + height);
1015 g.drawLine(x + width, y, x + width, y + height - 1);
1016 g.setColor(c);
1017 }
1018
1019 void drawScrollbar(Graphics g, Color bg, int thickness, int length,
1020 int min, int max, int val, int vis, boolean horizontal) {
1021 Color c = g.getColor();
1022 double f = (double)(length - 2*(thickness-1)) / Math.max(1, ((max - min) + vis));
1023 int v1 = thickness + (int)(f * (val - min));
1024 int v2 = (int)(f * vis);
1025 int w2 = thickness-4;
1026 int tpts_x[] = new int[3];
1027 int tpts_y[] = new int[3];
1028
1029 if (length < 3*w2 ) {
1030 v1 = v2 = 0;
1031 if (length < 2*w2 + 2) {
1032 w2 = (length-2)/2;
1033 }
1034 } else if (v2 < 7) {
1035 // enforce a minimum handle size
1036 v1 = Math.max(0, v1 - ((7 - v2)>>1));
1037 v2 = 7;
1038 }
1039
1040 int ctr = thickness/2;
1041 int sbmin = ctr - w2/2;
1042 int sbmax = ctr + w2/2;
1043
1044 // paint the background slightly darker
1045 {
1046 Color d = new Color((int) (bg.getRed() * 0.85),
1047 (int) (bg.getGreen() * 0.85),
1048 (int) (bg.getBlue() * 0.85));
1049
1050 g.setColor(d);
1051 if (horizontal) {
1052 g.fillRect(0, 0, length, thickness);
1053 } else {
1054 g.fillRect(0, 0, thickness, length);
1055 }
1056 }
1057
1058 // paint the thumb and arrows in the normal background color
1059 g.setColor(bg);
1060 if (v1 > 0) {
1061 if (horizontal) {
1062 g.fillRect(v1, 3, v2, thickness-3);
1063 } else {
1064 g.fillRect(3, v1, thickness-3, v2);
1065 }
1066 }
1067
1068 tpts_x[0] = ctr; tpts_y[0] = 2;
1069 tpts_x[1] = sbmin; tpts_y[1] = w2;
1070 tpts_x[2] = sbmax; tpts_y[2] = w2;
1071 if (horizontal) {
1072 g.fillPolygon(tpts_y, tpts_x, 3);
1073 } else {
1074 g.fillPolygon(tpts_x, tpts_y, 3);
1075 }
1076
1077 tpts_y[0] = length-2;
1078 tpts_y[1] = length-w2;
1079 tpts_y[2] = length-w2;
1080 if (horizontal) {
1081 g.fillPolygon(tpts_y, tpts_x, 3);
1082 } else {
1083 g.fillPolygon(tpts_x, tpts_y, 3);
1084 }
1085
1086 Color highlight = bg.brighter();
1087
1088 // // // // draw the "highlighted" edges
1089 g.setColor(highlight);
1090
1091 // outline & arrows
1092 if (horizontal) {
1093 g.drawLine(1, thickness, length - 1, thickness);
1094 g.drawLine(length - 1, 1, length - 1, thickness);
1095
1096 // arrows
1097 g.drawLine(1, ctr, w2, sbmin);
1098 g.drawLine(length - w2, sbmin, length - w2, sbmax);
1099 g.drawLine(length - w2, sbmin, length - 2, ctr);
1100
1101 } else {
1102 g.drawLine(thickness, 1, thickness, length - 1);
1103 g.drawLine(1, length - 1, thickness, length - 1);
1104
1105 // arrows
1106 g.drawLine(ctr, 1, sbmin, w2);
1107 g.drawLine(sbmin, length - w2, sbmax, length - w2);
1108 g.drawLine(sbmin, length - w2, ctr, length - 2);
1109 }
1110
1111 // thumb
1112 if (v1 > 0) {
1113 if (horizontal) {
1114 g.drawLine(v1, 2, v1 + v2, 2);
1115 g.drawLine(v1, 2, v1, thickness-3);
1116 } else {
1117 g.drawLine(2, v1, 2, v1 + v2);
1118 g.drawLine(2, v1, thickness-3, v1);
1119 }
1120 }
1121
1122 Color shadow = bg.darker();
1123
1124 // // // // draw the "shadowed" edges
1125 g.setColor(shadow);
1126
1127 // outline && arrows
1128 if (horizontal) {
1129 g.drawLine(0, 0, 0, thickness);
1130 g.drawLine(0, 0, length - 1, 0);
1131
1132 // arrows
1133 g.drawLine(w2, sbmin, w2, sbmax);
1134 g.drawLine(w2, sbmax, 1, ctr);
1135 g.drawLine(length-2, ctr, length-w2, sbmax);
1136
1137 } else {
1138 g.drawLine(0, 0, thickness, 0);
1139 g.drawLine(0, 0, 0, length - 1);
1140
1141 // arrows
1142 g.drawLine(sbmin, w2, sbmax, w2);
1143 g.drawLine(sbmax, w2, ctr, 1);
1144 g.drawLine(ctr, length-2, sbmax, length-w2);
1145 }
1146
1147 // thumb
1148 if (v1 > 0) {
1149 if (horizontal) {
1150 g.drawLine(v1 + v2, 2, v1 + v2, thickness-2);
1151 g.drawLine(v1, thickness-2, v1 + v2, thickness-2);
1152 } else {
1153 g.drawLine(2, v1 + v2, thickness-2, v1 + v2);
1154 g.drawLine(thickness-2, v1, thickness-2, v1 + v2);
1155 }
1156 }
1157 g.setColor(c);
1158 }
1159
1160 /**
1161 * The following multibuffering-related methods delegate to our
1162 * associated GraphicsConfig (X11 or GLX) to handle the appropriate
1163 * native windowing system specific actions.
1164 */
1165
1166 private BufferCapabilities backBufferCaps;
1167
1168 public void createBuffers(int numBuffers, BufferCapabilities caps)
1169 throws AWTException
1170 {
1171 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1172 buffersLog.fine("createBuffers(" + numBuffers + ", " + caps + ")");
1173 }
1174 // set the caps first, they're used when creating the bb
1175 backBufferCaps = caps;
1176 backBuffer = graphicsConfig.createBackBuffer(this, numBuffers, caps);
1177 xBackBuffer = graphicsConfig.createBackBufferImage(target,
1178 backBuffer);
1179 }
1180
1181 @Override
1182 public BufferCapabilities getBackBufferCaps() {
1183 return backBufferCaps;
1184 }
1185
1186 public void flip(int x1, int y1, int x2, int y2,
1187 BufferCapabilities.FlipContents flipAction)
1188 {
1189 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1190 buffersLog.fine("flip(" + flipAction + ")");
1191 }
1192 if (backBuffer == 0) {
1193 throw new IllegalStateException("Buffers have not been created");
1194 }
1195 graphicsConfig.flip(this, target, xBackBuffer,
1196 x1, y1, x2, y2, flipAction);
1197 }
1198
1199 public Image getBackBuffer() {
1200 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1201 buffersLog.fine("getBackBuffer()");
1202 }
1203 if (backBuffer == 0) {
1204 throw new IllegalStateException("Buffers have not been created");
1205 }
1206 return xBackBuffer;
1207 }
1208
1209 public void destroyBuffers() {
1210 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1211 buffersLog.fine("destroyBuffers()");
1212 }
1213 graphicsConfig.destroyBackBuffer(backBuffer);
1214 backBuffer = 0;
1215 xBackBuffer = null;
1216 }
1217
1218 // End of multi-buffering
1219
1220 public void notifyTextComponentChange(boolean add){
1221 Container parent = AWTAccessor.getComponentAccessor().getParent(target);
1222 while(!(parent == null ||
1223 parent instanceof java.awt.Frame ||
1224 parent instanceof java.awt.Dialog)) {
1225 parent = AWTAccessor.getComponentAccessor().getParent(parent);
1226 }
1227
1228 /* FIX ME - FIX ME need to implement InputMethods
1229 if (parent instanceof java.awt.Frame ||
1230 parent instanceof java.awt.Dialog) {
1231 if (add)
1232 ((MInputMethodControl)parent.getPeer()).addTextComponent((MComponentPeer)this);
1233 else
1234 ((MInputMethodControl)parent.getPeer()).removeTextComponent((MComponentPeer)this);
1235 }
1236 */
1237 }
1238
1239 /**
1240 * Returns true if this event is disabled and shouldn't be processed by window
1241 * Currently if target component is disabled the following event will be disabled on window:
1242 * ButtonPress, ButtonRelease, KeyPress, KeyRelease, EnterNotify, LeaveNotify, MotionNotify
1243 */
1244 protected boolean isEventDisabled(XEvent e) {
1245 if (enableLog.isLoggable(PlatformLogger.Level.FINEST)) {
1246 enableLog.finest("Component is {1}, checking for disabled event {0}", e, (isEnabled()?"enabled":"disable"));
1247 }
1248 if (!isEnabled()) {
1249 switch (e.get_type()) {
1250 case XConstants.ButtonPress:
1251 case XConstants.ButtonRelease:
1252 case XConstants.KeyPress:
1253 case XConstants.KeyRelease:
1254 case XConstants.EnterNotify:
1255 case XConstants.LeaveNotify:
1256 case XConstants.MotionNotify:
1257 if (enableLog.isLoggable(PlatformLogger.Level.FINER)) {
1258 enableLog.finer("Event {0} is disable", e);
1259 }
1260 return true;
1261 }
1262 }
1263 switch(e.get_type()) {
1264 case XConstants.MapNotify:
1265 case XConstants.UnmapNotify:
1266 return true;
1267 }
1268 return super.isEventDisabled(e);
1269 }
1270
1271 Color getPeerBackground() {
1272 return background;
1273 }
1274
1275 Color getPeerForeground() {
1276 return foreground;
1277 }
1278
1279 Font getPeerFont() {
1280 return font;
1281 }
1282
1283 Dimension getPeerSize() {
1284 return new Dimension(width,height);
1285 }
1286
1287 public void setBoundsOperation(int operation) {
1288 synchronized(getStateLock()) {
1289 if (boundsOperation == DEFAULT_OPERATION) {
1290 boundsOperation = operation;
1291 } else if (operation == RESET_OPERATION) {
1292 boundsOperation = DEFAULT_OPERATION;
1293 }
1294 }
1295 }
1296
1297 static String operationToString(int operation) {
1298 switch (operation) {
1299 case SET_LOCATION:
1300 return "SET_LOCATION";
1301 case SET_SIZE:
1302 return "SET_SIZE";
1303 case SET_CLIENT_SIZE:
1304 return "SET_CLIENT_SIZE";
1305 default:
1306 case SET_BOUNDS:
1307 return "SET_BOUNDS";
1308 }
1309 }
1310
1311 /**
1312 * Lowers this component at the bottom of the above HW peer. If the above parameter
1313 * is null then the method places this component at the top of the Z-order.
1314 */
1315 public void setZOrder(ComponentPeer above) {
1316 long aboveWindow = (above != null) ? ((XComponentPeer)above).getWindow() : 0;
1317
1318 XToolkit.awtLock();
1319 try{
1320 XlibWrapper.SetZOrder(XToolkit.getDisplay(), getWindow(), aboveWindow);
1321 }finally{
1322 XToolkit.awtUnlock();
1323 }
1324 }
1325
1326 private void addTree(Collection<Long> order, Set<Long> set, Container cont) {
1327 for (int i = 0; i < cont.getComponentCount(); i++) {
1328 Component comp = cont.getComponent(i);
1329 ComponentPeer peer = comp.getPeer();
1330 if (peer instanceof XComponentPeer) {
1331 Long window = Long.valueOf(((XComponentPeer)peer).getWindow());
1332 if (!set.contains(window)) {
1333 set.add(window);
1334 order.add(window);
1335 }
1336 } else if (comp instanceof Container) {
1337 // It is lightweight container, it might contain heavyweight components attached to this
1338 // peer
1339 addTree(order, set, (Container)comp);
1340 }
1341 }
1342 }
1343
1344 /****** DropTargetPeer implementation ********************/
1345
1346 public void addDropTarget(DropTarget dt) {
1347 Component comp = target;
1348 while(!(comp == null || comp instanceof Window)) {
1349 comp = comp.getParent();
1350 }
1351
1352 if (comp instanceof Window) {
1353 XWindowPeer wpeer = (XWindowPeer)(comp.getPeer());
1354 if (wpeer != null) {
1355 wpeer.addDropTarget();
1356 }
1357 }
1358 }
1359
1360 public void removeDropTarget(DropTarget dt) {
1361 Component comp = target;
1362 while(!(comp == null || comp instanceof Window)) {
1363 comp = comp.getParent();
1364 }
1365
1366 if (comp instanceof Window) {
1367 XWindowPeer wpeer = (XWindowPeer)(comp.getPeer());
1368 if (wpeer != null) {
1369 wpeer.removeDropTarget();
1370 }
1371 }
1372 }
1373
1374 /**
1375 * Applies the shape to the X-window.
1376 * @since 1.7
1377 */
1378 public void applyShape(Region shape) {
1379 if (XlibUtil.isShapingSupported()) {
1380 if (shapeLog.isLoggable(PlatformLogger.Level.FINER)) {
1381 shapeLog.finer(
1382 "*** INFO: Setting shape: PEER: " + this
1383 + "; WINDOW: " + getWindow()
1384 + "; TARGET: " + target
1385 + "; SHAPE: " + shape);
1386 }
1387 XToolkit.awtLock();
1388 try {
1389 if (shape != null) {
1390 XlibWrapper.SetRectangularShape(
1391 XToolkit.getDisplay(),
1392 getWindow(),
1393 shape.getLoX(), shape.getLoY(),
1394 shape.getHiX(), shape.getHiY(),
1395 (shape.isRectangular() ? null : shape)
1396 );
1397 } else {
1398 XlibWrapper.SetRectangularShape(
1399 XToolkit.getDisplay(),
1400 getWindow(),
1401 0, 0,
1402 0, 0,
1403 null
1404 );
1405 }
1406 } finally {
1407 XToolkit.awtUnlock();
1408 }
1409 } else {
1410 if (shapeLog.isLoggable(PlatformLogger.Level.FINER)) {
1411 shapeLog.finer("*** WARNING: Shaping is NOT supported!");
1412 }
1413 }
1414 }
1415
1416 public boolean updateGraphicsData(GraphicsConfiguration gc) {
1417 int oldVisual = -1, newVisual = -1;
1418
1419 if (graphicsConfig != null) {
1420 oldVisual = graphicsConfig.getVisual();
1421 }
1422 if (gc != null && gc instanceof X11GraphicsConfig) {
1423 newVisual = ((X11GraphicsConfig)gc).getVisual();
1424 }
1425
1426 // If the new visual differs from the old one, the peer must be
1427 // recreated because X11 does not allow changing the visual on the fly.
1428 // So we even skip the initGraphicsConfiguration() call.
1429 // The initial assignment should happen though, hence the != -1 thing.
1430 if (oldVisual != -1 && oldVisual != newVisual) {
1431 return true;
1432 }
1433
1434 initGraphicsConfiguration();
1435 doValidateSurface();
1436 return false;
1437 }
1438 }