1 /*
2 * Copyright (c) 2002, 2011, 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.KeyboardFocusManager;
42 import java.awt.Rectangle;
43 import java.awt.SystemColor;
44 import java.awt.Toolkit;
45 import java.awt.Window;
46 import java.awt.dnd.DropTarget;
47 import java.awt.dnd.peer.DropTargetPeer;
48 import java.awt.event.FocusEvent;
49 import java.awt.event.InputEvent;
50 import java.awt.event.InputMethodEvent;
51 import java.awt.event.KeyEvent;
52 import java.awt.event.MouseEvent;
53 import java.awt.event.MouseWheelEvent;
54 import java.awt.event.PaintEvent;
55 import java.awt.event.WindowEvent;
56 import java.awt.event.InvocationEvent;
57 import java.awt.image.ImageObserver;
58 import java.awt.image.ImageProducer;
59 import java.awt.image.VolatileImage;
60 import java.awt.peer.ComponentPeer;
61 import java.awt.peer.ContainerPeer;
62 import java.awt.peer.LightweightPeer;
63 import java.lang.reflect.*;
64 import java.security.*;
65 import java.util.Collection;
66 import java.util.HashSet;
67 import java.util.Set;
68 import java.util.Vector;
69 import sun.util.logging.PlatformLogger;
70
71 import sun.awt.*;
72 import sun.awt.event.IgnorePaintEvent;
73 import sun.awt.image.SunVolatileImage;
74 import sun.awt.image.ToolkitImage;
75 import sun.java2d.BackBufferCapsProvider;
76 import sun.java2d.pipe.Region;
77
78 public class XComponentPeer extends XWindow implements ComponentPeer, DropTargetPeer,
79 BackBufferCapsProvider
80 {
81 private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XComponentPeer");
82 private static final PlatformLogger buffersLog = PlatformLogger.getLogger("sun.awt.X11.XComponentPeer.multibuffer");
83 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.awt.X11.focus.XComponentPeer");
84 private static final PlatformLogger fontLog = PlatformLogger.getLogger("sun.awt.X11.font.XComponentPeer");
85 private static final PlatformLogger enableLog = PlatformLogger.getLogger("sun.awt.X11.enable.XComponentPeer");
86 private static final PlatformLogger shapeLog = PlatformLogger.getLogger("sun.awt.X11.shape.XComponentPeer");
87
88 boolean paintPending = false;
89 boolean isLayouting = false;
90 boolean enabled;
91
92 // Actually used only by XDecoratedPeer
93 protected int boundsOperation;
94
95 Color foreground;
96 Color background;
97
98 // Colors calculated as on Motif using MotifColorUtilties.
99 // If you use these, call updateMotifColors() in the peer's Constructor and
100 // setBackground(). Examples are XCheckboxPeer and XButtonPeer.
101 Color darkShadow;
102 Color lightShadow;
103 Color selectColor;
104
105 Font font;
106 private long backBuffer = 0;
107 private VolatileImage xBackBuffer = null;
108
109 static Color[] systemColors;
110
111 XComponentPeer() {
112 }
113
114 XComponentPeer (XCreateWindowParams params) {
115 super(params);
116 }
117
118 XComponentPeer(Component target, long parentWindow, Rectangle bounds) {
119 super(target, parentWindow, bounds);
120 }
121
122 /**
123 * Standard peer constructor, with corresponding Component
124 */
125 XComponentPeer(Component target) {
126 super(target);
127 }
128
129
130 void preInit(XCreateWindowParams params) {
131 super.preInit(params);
132 boundsOperation = DEFAULT_OPERATION;
133 }
134 void postInit(XCreateWindowParams params) {
135 super.postInit(params);
136 Color c;
137 Font f;
138 Cursor cursor;
139
140 pSetCursor(target.getCursor());
141
142 foreground = target.getForeground();
143 background = target.getBackground();
144 font = target.getFont();
145
146 if (isInitialReshape()) {
147 Rectangle r = target.getBounds();
148 reshape(r.x, r.y, r.width, r.height);
149 }
150
151 enabled = target.isEnabled();
152
153 // If any of our heavyweight ancestors are disable, we should be too
154 // See 6176875 for more information
155 Component comp = target;
156 while( !(comp == null || comp instanceof Window) ) {
157 comp = comp.getParent();
158 if( comp != null && !comp.isEnabled() && !comp.isLightweight() ){
159 setEnabled(false);
160 break;
161 }
162 }
163 enableLog.fine("Initial enable state: {0}", Boolean.valueOf(enabled));
164
165 if (target.isVisible()) {
166 setVisible(true);
167 }
168 }
169
170 protected boolean isInitialReshape() {
171 return true;
172 }
173
174 public void reparent(ContainerPeer newNativeParent) {
175 XComponentPeer newPeer = (XComponentPeer)newNativeParent;
176 XToolkit.awtLock();
177 try {
178 XlibWrapper.XReparentWindow(XToolkit.getDisplay(), getWindow(), newPeer.getContentWindow(), x, y);
179 parentWindow = newPeer;
180 } finally {
181 XToolkit.awtUnlock();
182 }
183 }
184 public boolean isReparentSupported() {
185 return System.getProperty("sun.awt.X11.XComponentPeer.reparentNotSupported", "false").equals("false");
186 }
187
188 public boolean isObscured() {
189 Container container = (target instanceof Container) ?
190 (Container)target : target.getParent();
191
192 if (container == null) {
193 return true;
194 }
195
196 Container parent;
197 while ((parent = container.getParent()) != null) {
198 container = parent;
199 }
200
201 if (container instanceof Window) {
202 XWindowPeer wpeer = (XWindowPeer)(container.getPeer());
203 if (wpeer != null) {
204 return (wpeer.winAttr.visibilityState !=
205 wpeer.winAttr.AWT_UNOBSCURED);
206 }
207 }
208 return true;
209 }
210
211 public boolean canDetermineObscurity() {
212 return true;
213 }
214
215 /*************************************************
216 * FOCUS STUFF
217 *************************************************/
218
219 /**
220 * Keeps the track of focused state of the _NATIVE_ window
221 */
222 boolean bHasFocus = false;
223
224 /**
225 * Descendants should use this method to determine whether or not native window
226 * has focus.
227 */
228 final public boolean hasFocus() {
229 return bHasFocus;
230 }
231
232 /**
233 * Called when component receives focus
234 */
235 public void focusGained(FocusEvent e) {
236 focusLog.fine("{0}", e);
237 bHasFocus = true;
238 }
239
240 /**
241 * Called when component loses focus
242 */
243 public void focusLost(FocusEvent e) {
244 focusLog.fine("{0}", e);
245 bHasFocus = false;
246 }
247
248 public boolean isFocusable() {
249 /* should be implemented by other sub-classes */
250 return false;
251 }
252
253 private static Class seClass;
254 private static Constructor seCtor;
255
256 final static AWTEvent wrapInSequenced(AWTEvent event) {
257 try {
258 if (seClass == null) {
259 seClass = Class.forName("java.awt.SequencedEvent");
260 }
261
262 if (seCtor == null) {
263 seCtor = (Constructor) AccessController.doPrivileged(new PrivilegedExceptionAction() {
264 public Object run() throws Exception {
265 Constructor ctor = seClass.getConstructor(new Class[] { AWTEvent.class });
266 ctor.setAccessible(true);
267 return ctor;
268 }
269 });
270 }
271
272 return (AWTEvent) seCtor.newInstance(new Object[] { event });
273 }
274 catch (ClassNotFoundException e) {
275 throw new NoClassDefFoundError("java.awt.SequencedEvent.");
276 }
277 catch (PrivilegedActionException ex) {
278 throw new NoClassDefFoundError("java.awt.SequencedEvent.");
279 }
280 catch (InstantiationException e) {
281 assert false;
282 }
283 catch (IllegalAccessException e) {
284 assert false;
285 }
286 catch (InvocationTargetException e) {
287 assert false;
288 }
289
290 return null;
291 }
292
293 // TODO: consider moving it to KeyboardFocusManagerPeerImpl
294 final public boolean requestFocus(Component lightweightChild, boolean temporary,
295 boolean focusedWindowChangeAllowed, long time,
296 CausedFocusEvent.Cause cause)
297 {
298 if (XKeyboardFocusManagerPeer.
299 processSynchronousLightweightTransfer(target, lightweightChild, temporary,
300 focusedWindowChangeAllowed, time))
301 {
302 return true;
303 }
304
305 int result = XKeyboardFocusManagerPeer.
306 shouldNativelyFocusHeavyweight(target, lightweightChild,
307 temporary, focusedWindowChangeAllowed,
308 time, cause);
309
310 switch (result) {
311 case XKeyboardFocusManagerPeer.SNFH_FAILURE:
312 return false;
313 case XKeyboardFocusManagerPeer.SNFH_SUCCESS_PROCEED:
314 // Currently we just generate focus events like we deal with lightweight instead of calling
315 // XSetInputFocus on native window
316 if (focusLog.isLoggable(PlatformLogger.FINER)) focusLog.finer("Proceeding with request to " +
317 lightweightChild + " in " + target);
318 /**
319 * The problems with requests in non-focused window arise because shouldNativelyFocusHeavyweight
320 * checks that native window is focused while appropriate WINDOW_GAINED_FOCUS has not yet
321 * been processed - it is in EventQueue. Thus, SNFH allows native request and stores request record
322 * in requests list - and it breaks our requests sequence as first record on WGF should be the last
323 * focus owner which had focus before WLF. So, we should not add request record for such requests
324 * but store this component in mostRecent - and return true as before for compatibility.
325 */
326 Window parentWindow = SunToolkit.getContainingWindow(target);
327 if (parentWindow == null) {
328 return rejectFocusRequestHelper("WARNING: Parent window is null");
329 }
330 XWindowPeer wpeer = (XWindowPeer)parentWindow.getPeer();
331 if (wpeer == null) {
332 return rejectFocusRequestHelper("WARNING: Parent window's peer is null");
333 }
334 /*
335 * Passing null 'actualFocusedWindow' as we don't want to restore focus on it
336 * when a component inside a Frame is requesting focus.
337 * See 6314575 for details.
338 */
339 boolean res = wpeer.requestWindowFocus(null);
340
341 if (focusLog.isLoggable(PlatformLogger.FINER)) focusLog.finer("Requested window focus: " + res);
342 // If parent window can be made focused and has been made focused(synchronously)
343 // then we can proceed with children, otherwise we retreat.
344 if (!(res && parentWindow.isFocused())) {
345 return rejectFocusRequestHelper("Waiting for asynchronous processing of the request");
346 }
347 return XKeyboardFocusManagerPeer.deliverFocus(lightweightChild,
348 (Component)target,
349 temporary,
350 focusedWindowChangeAllowed,
351 time, cause);
352 // Motif compatibility code
353 case XKeyboardFocusManagerPeer.SNFH_SUCCESS_HANDLED:
354 // Either lightweight or excessive request - all events are generated.
355 return true;
356 }
357 return false;
358 }
359
360 private boolean rejectFocusRequestHelper(String logMsg) {
361 if (focusLog.isLoggable(PlatformLogger.FINER)) focusLog.finer(logMsg);
362 XKeyboardFocusManagerPeer.removeLastFocusRequest(target);
363 return false;
364 }
365
366 void handleJavaFocusEvent(AWTEvent e) {
367 if (focusLog.isLoggable(PlatformLogger.FINER)) focusLog.finer(e.toString());
368 if (e.getID() == FocusEvent.FOCUS_GAINED) {
369 focusGained((FocusEvent)e);
370 } else {
371 focusLost((FocusEvent)e);
372 }
373 }
374
375 void handleJavaWindowFocusEvent(AWTEvent e) {
376 }
377
378 /*************************************************
379 * END OF FOCUS STUFF
380 *************************************************/
381
382
383
384 public void setVisible(boolean b) {
385 xSetVisible(b);
386 }
387
388 public void hide() {
389 setVisible(false);
390 }
391
392
393 /**
394 * @see java.awt.peer.ComponentPeer
395 */
396 public void setEnabled(boolean value) {
397 enableLog.fine("{0}ing {1}", (value?"Enabl":"Disabl"), this);
398 boolean repaintNeeded = (enabled != value);
399 enabled = value;
400 if (target instanceof Container) {
401 Component list[] = ((Container)target).getComponents();
402 for (int i = 0; i < list.length; ++i) {
403 boolean childEnabled = list[i].isEnabled();
404 ComponentPeer p = list[i].getPeer();
405 if ( p != null ) {
406 p.setEnabled(value && childEnabled);
407 }
408 }
409 }
410 if (repaintNeeded) {
411 repaint();
412 }
413 }
414
415 //
416 // public so aw/Window can call it
417 //
418 public boolean isEnabled() {
419 return enabled;
420 }
421
422
423
424 public void enable() {
425 setEnabled(true);
426 }
427
428 public void disable() {
429 setEnabled(false);
430 }
431
432 public void paint(Graphics g) {
433 }
434 public void repaint(long tm, int x, int y, int width, int height) {
435 repaint();
436 }
437
438
439 public Graphics getGraphics() {
440 return getGraphics(surfaceData, getPeerForeground(), getPeerBackground(), getPeerFont());
441 }
442
443
444
445 public void print(Graphics g) {
446 // clear rect here to emulate X clears rect before Expose
447 g.setColor(target.getBackground());
448 g.fillRect(0, 0, target.getWidth(), target.getHeight());
449 g.setColor(target.getForeground());
450 // paint peer
451 paint(g);
452 // allow target to change the picture
453 target.print(g);
454 }
455
456 public void setBounds(int x, int y, int width, int height, int op) {
457 this.x = x;
458 this.y = y;
459 this.width = width;
460 this.height = height;
461 xSetBounds(x,y,width,height);
462 validateSurface();
463 layout();
464 }
465
466 public void reshape(int x, int y, int width, int height) {
467 setBounds(x, y, width, height, SET_BOUNDS);
468 }
469
470 public void coalescePaintEvent(PaintEvent e) {
471 Rectangle r = e.getUpdateRect();
472 if (!(e instanceof IgnorePaintEvent)) {
473 paintArea.add(r, e.getID());
474 }
475 if (true) {
476 switch(e.getID()) {
477 case PaintEvent.UPDATE:
478 if (log.isLoggable(PlatformLogger.FINER)) {
479 log.finer("XCP coalescePaintEvent : UPDATE : add : x = " +
480 r.x + ", y = " + r.y + ", width = " + r.width + ",height = " + r.height);
481 }
482 return;
483 case PaintEvent.PAINT:
484 if (log.isLoggable(PlatformLogger.FINER)) {
485 log.finer("XCP coalescePaintEvent : PAINT : add : x = " +
486 r.x + ", y = " + r.y + ", width = " + r.width + ",height = " + r.height);
487 }
488 return;
489 }
490 }
491 }
492
493 XWindowPeer getParentTopLevel() {
494 AWTAccessor.ComponentAccessor compAccessor = AWTAccessor.getComponentAccessor();
495 Container parent = (target instanceof Container) ? ((Container)target) : (compAccessor.getParent(target));
496 // Search for parent window
497 while (parent != null && !(parent instanceof Window)) {
498 parent = compAccessor.getParent(parent);
499 }
500 if (parent != null) {
501 return (XWindowPeer)compAccessor.getPeer(parent);
502 } else {
503 return null;
504 }
505 }
506
507 /* This method is intended to be over-ridden by peers to perform user interaction */
508 void handleJavaMouseEvent(MouseEvent e) {
509 switch (e.getID()) {
510 case MouseEvent.MOUSE_PRESSED:
511 if (target == e.getSource() &&
512 !target.isFocusOwner() &&
513 XKeyboardFocusManagerPeer.shouldFocusOnClick(target))
514 {
515 XWindowPeer parentXWindow = getParentTopLevel();
516 Window parentWindow = ((Window)parentXWindow.getTarget());
517 // Simple windows are non-focusable in X terms but focusable in Java terms.
518 // As X-non-focusable they don't receive any focus events - we should generate them
519 // by ourselfves.
520 // if (parentXWindow.isFocusableWindow() /*&& parentXWindow.isSimpleWindow()*/ &&
521 // !(getCurrentNativeFocusedWindow() == parentWindow))
522 // {
523 // setCurrentNativeFocusedWindow(parentWindow);
524 // WindowEvent wfg = new WindowEvent(parentWindow, WindowEvent.WINDOW_GAINED_FOCUS);
525 // parentWindow.dispatchEvent(wfg);
526 // }
527 XKeyboardFocusManagerPeer.requestFocusFor(target, CausedFocusEvent.Cause.MOUSE_EVENT);
528 }
529 break;
530 }
531 }
532
533 /* This method is intended to be over-ridden by peers to perform user interaction */
534 void handleJavaKeyEvent(KeyEvent e) {
535 }
536
537 /* This method is intended to be over-ridden by peers to perform user interaction */
538 void handleJavaMouseWheelEvent(MouseWheelEvent e) {
539 }
540
541
542 /* This method is intended to be over-ridden by peers to perform user interaction */
543 void handleJavaInputMethodEvent(InputMethodEvent e) {
544 }
545
546 void handleF10JavaKeyEvent(KeyEvent e) {
547 if (e.getID() == KeyEvent.KEY_PRESSED && e.getKeyCode() == KeyEvent.VK_F10) {
548 XWindowPeer winPeer = this.getToplevelXWindow();
549 if (winPeer instanceof XFramePeer) {
550 XMenuBarPeer mPeer = ((XFramePeer)winPeer).getMenubarPeer();
551 if (mPeer != null) {
552 mPeer.handleF10KeyPress(e);
553 }
554 }
555 }
556 }
557
558 public void handleEvent(java.awt.AWTEvent e) {
559 if ((e instanceof InputEvent) && !((InputEvent)e).isConsumed() && target.isEnabled()) {
560 if (e instanceof MouseEvent) {
561 if (e instanceof MouseWheelEvent) {
562 handleJavaMouseWheelEvent((MouseWheelEvent) e);
563 }
564 else
565 handleJavaMouseEvent((MouseEvent) e);
566 }
567 else if (e instanceof KeyEvent) {
568 handleF10JavaKeyEvent((KeyEvent)e);
569 handleJavaKeyEvent((KeyEvent)e);
570 }
571 }
572 else if (e instanceof KeyEvent && !((InputEvent)e).isConsumed()) {
573 // even if target is disabled.
574 handleF10JavaKeyEvent((KeyEvent)e);
575 }
576 else if (e instanceof InputMethodEvent) {
577 handleJavaInputMethodEvent((InputMethodEvent) e);
578 }
579
580 int id = e.getID();
581
582 switch(id) {
583 case PaintEvent.PAINT:
584 // Got native painting
585 paintPending = false;
586 // Fallthrough to next statement
587 case PaintEvent.UPDATE:
588 // Skip all painting while layouting and all UPDATEs
589 // while waiting for native paint
590 if (!isLayouting && !paintPending) {
591 paintArea.paint(target,false);
592 }
593 return;
594 case FocusEvent.FOCUS_LOST:
595 case FocusEvent.FOCUS_GAINED:
596 handleJavaFocusEvent(e);
597 break;
598 case WindowEvent.WINDOW_LOST_FOCUS:
599 case WindowEvent.WINDOW_GAINED_FOCUS:
600 handleJavaWindowFocusEvent(e);
601 break;
602 default:
603 break;
604 }
605
606 }
607
608 public Dimension getMinimumSize() {
609 return target.getSize();
610 }
611
612 public Dimension getPreferredSize() {
613 return getMinimumSize();
614 }
615
616 public void layout() {}
617
618 public java.awt.Toolkit getToolkit() {
619 return Toolkit.getDefaultToolkit();
620 }
621
622 void updateMotifColors(Color bg) {
623 int red = bg.getRed();
624 int green = bg.getGreen();
625 int blue = bg.getBlue();
626
627 darkShadow = new Color(MotifColorUtilities.calculateBottomShadowFromBackground(red,green,blue));
628 lightShadow = new Color(MotifColorUtilities.calculateTopShadowFromBackground(red,green,blue));
629 selectColor= new Color(MotifColorUtilities.calculateSelectFromBackground(red,green,blue));
630 }
631
632 /*
633 * Draw a 3D rectangle using the Motif colors.
634 * "Normal" rectangles have shadows on the bottom.
635 * "Depressed" rectangles (such as pressed buttons) have shadows on the top,
636 * in which case true should be passed for topShadow.
637 */
638 public void drawMotif3DRect(Graphics g,
639 int x, int y, int width, int height,
640 boolean topShadow) {
641 g.setColor(topShadow ? darkShadow : lightShadow);
642 g.drawLine(x, y, x+width, y); // top
643 g.drawLine(x, y+height, x, y); // left
644
645 g.setColor(topShadow ? lightShadow : darkShadow );
646 g.drawLine(x+1, y+height, x+width, y+height); // bottom
647 g.drawLine(x+width, y+height, x+width, y+1); // right
648 }
649
650 public void setBackground(Color c) {
651 if (log.isLoggable(PlatformLogger.FINE)) log.fine("Set background to " + c);
652 synchronized (getStateLock()) {
653 background = c;
654 }
655 super.setBackground(c);
656 repaint();
657 }
658
659 public void setForeground(Color c) {
660 if (log.isLoggable(PlatformLogger.FINE)) log.fine("Set foreground to " + c);
661 synchronized (getStateLock()) {
662 foreground = c;
663 }
664 repaint();
665 }
666
667 /**
668 * Gets the font metrics for the specified font.
669 * @param font the font for which font metrics is to be
670 * obtained
671 * @return the font metrics for <code>font</code>
672 * @see #getFont
673 * @see #getPeer
674 * @see java.awt.peer.ComponentPeer#getFontMetrics(Font)
675 * @see Toolkit#getFontMetrics(Font)
676 * @since JDK1.0
677 */
678 public FontMetrics getFontMetrics(Font font) {
679 if (fontLog.isLoggable(PlatformLogger.FINE)) fontLog.fine("Getting font metrics for " + font);
680 return sun.font.FontDesignMetrics.getMetrics(font);
681 }
682
683 public void setFont(Font f) {
684 synchronized (getStateLock()) {
685 if (f == null) {
686 f = XWindow.getDefaultFont();
687 }
688 font = f;
689 }
690 // as it stands currently we dont need to do layout or repaint since
691 // layout is done in the Component upon setFont.
692 //layout();
693 // target.repaint();
694 //repaint()?
695 }
696
697 public Font getFont() {
698 return font;
699 }
700
701 public void updateCursorImmediately() {
702 XGlobalCursorManager.getCursorManager().updateCursorImmediately();
703 }
704
705 public final void pSetCursor(Cursor cursor) {
706 this.pSetCursor(cursor, true);
707 }
708
709 /*
710 * The method changes the cursor.
711 * @param cursor - a new cursor to change to.
712 * @param ignoreSubComponents - if {@code true} is passed then
713 * the new cursor will be installed on window.
714 * if {@code false} is passed then
715 * subsequent components will try to handle
716 * this request and install their cursor.
717 */
718 //ignoreSubComponents not used here
719 public void pSetCursor(Cursor cursor, boolean ignoreSubComponents) {
720 XToolkit.awtLock();
721 try {
722 long xcursor = XGlobalCursorManager.getCursor(cursor);
723
724 XSetWindowAttributes xwa = new XSetWindowAttributes();
725 xwa.set_cursor(xcursor);
726
727 long valuemask = XConstants.CWCursor;
728
729 XlibWrapper.XChangeWindowAttributes(XToolkit.getDisplay(),getWindow(),valuemask,xwa.pData);
730 XlibWrapper.XFlush(XToolkit.getDisplay());
731 xwa.dispose();
732 } finally {
733 XToolkit.awtUnlock();
734 }
735 }
736
737 public Image createImage(ImageProducer producer) {
738 return new ToolkitImage(producer);
739 }
740
741 public Image createImage(int width, int height) {
742 return graphicsConfig.createAcceleratedImage(target, width, height);
743 }
744
745 public VolatileImage createVolatileImage(int width, int height) {
746 return new SunVolatileImage(target, width, height);
747 }
748
749 public boolean prepareImage(Image img, int w, int h, ImageObserver o) {
750 return getToolkit().prepareImage(img, w, h, o);
751 }
752
753 public int checkImage(Image img, int w, int h, ImageObserver o) {
754 return getToolkit().checkImage(img, w, h, o);
755 }
756
757 public Dimension preferredSize() {
758 return getPreferredSize();
759 }
760
761 public Dimension minimumSize() {
762 return getMinimumSize();
763 }
764
765 public Insets getInsets() {
766 return new Insets(0, 0, 0, 0);
767 }
768
769 public void beginValidate() {
770 }
771
772 public void endValidate() {
773 }
774
775
776 /**
777 * DEPRECATED: Replaced by getInsets().
778 */
779
780 public Insets insets() {
781 return getInsets();
782 }
783
784 // Returns true if we are inside begin/endLayout and
785 // are waiting for native painting
786 public boolean isPaintPending() {
787 return paintPending && isLayouting;
788 }
789
790 public boolean handlesWheelScrolling() {
791 return false;
792 }
793
794 public void beginLayout() {
795 // Skip all painting till endLayout
796 isLayouting = true;
797
798 }
799
800 public void endLayout() {
801 if (!paintPending && !paintArea.isEmpty()
802 && !AWTAccessor.getComponentAccessor().getIgnoreRepaint(target))
803 {
804 // if not waiting for native painting repaint damaged area
805 postEvent(new PaintEvent(target, PaintEvent.PAINT,
806 new Rectangle()));
807 }
808 isLayouting = false;
809 }
810
811 public Color getWinBackground() {
812 return getPeerBackground();
813 }
814
815 static int[] getRGBvals(Color c) {
816
817 int rgbvals[] = new int[3];
818
819 rgbvals[0] = c.getRed();
820 rgbvals[1] = c.getGreen();
821 rgbvals[2] = c.getBlue();
822
823 return rgbvals;
824 }
825
826 static final int BACKGROUND_COLOR = 0;
827 static final int HIGHLIGHT_COLOR = 1;
828 static final int SHADOW_COLOR = 2;
829 static final int FOREGROUND_COLOR = 3;
830
831 public Color[] getGUIcolors() {
832 Color c[] = new Color[4];
833 float backb, highb, shadowb, hue, saturation;
834 c[BACKGROUND_COLOR] = getWinBackground();
835 if (c[BACKGROUND_COLOR] == null) {
836 c[BACKGROUND_COLOR] = super.getWinBackground();
837 }
838 if (c[BACKGROUND_COLOR] == null) {
839 c[BACKGROUND_COLOR] = Color.lightGray;
840 }
841
842 int[] rgb = getRGBvals(c[BACKGROUND_COLOR]);
843
844 float[] hsb = Color.RGBtoHSB(rgb[0],rgb[1],rgb[2],null);
845
846 hue = hsb[0];
847 saturation = hsb[1];
848 backb = hsb[2];
849
850
851 /* Calculate Highlight Brightness */
852
853 highb = backb + 0.2f;
854 shadowb = backb - 0.4f;
855 if ((highb > 1.0) ) {
856 if ((1.0 - backb) < 0.05) {
857 highb = shadowb + 0.25f;
858 } else {
859 highb = 1.0f;
860 }
861 } else {
862 if (shadowb < 0.0) {
863 if ((backb - 0.0) < 0.25) {
864 highb = backb + 0.75f;
865 shadowb = highb - 0.2f;
866 } else {
867 shadowb = 0.0f;
868 }
869 }
870 }
871 c[HIGHLIGHT_COLOR] = Color.getHSBColor(hue,saturation,highb);
872 c[SHADOW_COLOR] = Color.getHSBColor(hue,saturation,shadowb);
873
874
875 /*
876 c[SHADOW_COLOR] = c[BACKGROUND_COLOR].darker();
877 int r2 = c[SHADOW_COLOR].getRed();
878 int g2 = c[SHADOW_COLOR].getGreen();
879 int b2 = c[SHADOW_COLOR].getBlue();
880 */
881
882 c[FOREGROUND_COLOR] = getPeerForeground();
883 if (c[FOREGROUND_COLOR] == null) {
884 c[FOREGROUND_COLOR] = Color.black;
885 }
886 /*
887 if ((c[BACKGROUND_COLOR].equals(c[HIGHLIGHT_COLOR]))
888 && (c[BACKGROUND_COLOR].equals(c[SHADOW_COLOR]))) {
889 c[SHADOW_COLOR] = new Color(c[BACKGROUND_COLOR].getRed() + 75,
890 c[BACKGROUND_COLOR].getGreen() + 75,
891 c[BACKGROUND_COLOR].getBlue() + 75);
892 c[HIGHLIGHT_COLOR] = c[SHADOW_COLOR].brighter();
893 } else if (c[BACKGROUND_COLOR].equals(c[HIGHLIGHT_COLOR])) {
894 c[HIGHLIGHT_COLOR] = c[SHADOW_COLOR];
895 c[SHADOW_COLOR] = c[SHADOW_COLOR].darker();
896 }
897 */
898 if (! isEnabled()) {
899 c[BACKGROUND_COLOR] = c[BACKGROUND_COLOR].darker();
900 // Reduce the contrast
901 // Calculate the NTSC gray (NB: REC709 L* might be better!)
902 // for foreground and background; then multiply the foreground
903 // by the average lightness
904
905
906 Color tc = c[BACKGROUND_COLOR];
907 int bg = tc.getRed() * 30 + tc.getGreen() * 59 + tc.getBlue() * 11;
908
909 tc = c[FOREGROUND_COLOR];
910 int fg = tc.getRed() * 30 + tc.getGreen() * 59 + tc.getBlue() * 11;
911
912 float ave = (float) ((fg + bg) / 51000.0);
913 // 255 * 100 * 2
914
915 Color newForeground = new Color((int) (tc.getRed() * ave),
916 (int) (tc.getGreen() * ave),
917 (int) (tc.getBlue() * ave));
918
919 if (newForeground.equals(c[FOREGROUND_COLOR])) {
920 // This probably means the foreground color is black or white
921 newForeground = new Color(ave, ave, ave);
922 }
923 c[FOREGROUND_COLOR] = newForeground;
924
925 }
926
927
928 return c;
929 }
930
931 /**
932 * Returns an array of Colors similar to getGUIcolors(), but using the
933 * System colors. This is useful if pieces of a Component (such as
934 * the integrated scrollbars of a List) should retain the System color
935 * instead of the background color set by Component.setBackground().
936 */
937 static Color[] getSystemColors() {
938 if (systemColors == null) {
939 systemColors = new Color[4];
940 systemColors[BACKGROUND_COLOR] = SystemColor.window;
941 systemColors[HIGHLIGHT_COLOR] = SystemColor.controlLtHighlight;
942 systemColors[SHADOW_COLOR] = SystemColor.controlShadow;
943 systemColors[FOREGROUND_COLOR] = SystemColor.windowText;
944 }
945 return systemColors;
946 }
947
948 /**
949 * Draw a 3D oval.
950 */
951 public void draw3DOval(Graphics g, Color colors[],
952 int x, int y, int w, int h, boolean raised)
953 {
954 Color c = g.getColor();
955 g.setColor(raised ? colors[HIGHLIGHT_COLOR] : colors[SHADOW_COLOR]);
956 g.drawArc(x, y, w, h, 45, 180);
957 g.setColor(raised ? colors[SHADOW_COLOR] : colors[HIGHLIGHT_COLOR]);
958 g.drawArc(x, y, w, h, 225, 180);
959 g.setColor(c);
960 }
961
962 public void draw3DRect(Graphics g, Color colors[],
963 int x, int y, int width, int height, boolean raised)
964 {
965 Color c = g.getColor();
966 g.setColor(raised ? colors[HIGHLIGHT_COLOR] : colors[SHADOW_COLOR]);
967 g.drawLine(x, y, x, y + height);
968 g.drawLine(x + 1, y, x + width - 1, y);
969 g.setColor(raised ? colors[SHADOW_COLOR] : colors[HIGHLIGHT_COLOR]);
970 g.drawLine(x + 1, y + height, x + width, y + height);
971 g.drawLine(x + width, y, x + width, y + height - 1);
972 g.setColor(c);
973 }
974
975 /*
976 * drawXXX() methods are used to print the native components by
977 * rendering the Motif look ourselves.
978 * ToDo(aim): needs to query native motif for more accurate color
979 * information.
980 */
981 void draw3DOval(Graphics g, Color bg,
982 int x, int y, int w, int h, boolean raised)
983 {
984 Color c = g.getColor();
985 Color shadow = bg.darker();
986 Color highlight = bg.brighter();
987
988 g.setColor(raised ? highlight : shadow);
989 g.drawArc(x, y, w, h, 45, 180);
990 g.setColor(raised ? shadow : highlight);
991 g.drawArc(x, y, w, h, 225, 180);
992 g.setColor(c);
993 }
994
995 void draw3DRect(Graphics g, Color bg,
996 int x, int y, int width, int height,
997 boolean raised) {
998 Color c = g.getColor();
999 Color shadow = bg.darker();
1000 Color highlight = bg.brighter();
1001
1002 g.setColor(raised ? highlight : shadow);
1003 g.drawLine(x, y, x, y + height);
1004 g.drawLine(x + 1, y, x + width - 1, y);
1005 g.setColor(raised ? shadow : highlight);
1006 g.drawLine(x + 1, y + height, x + width, y + height);
1007 g.drawLine(x + width, y, x + width, y + height - 1);
1008 g.setColor(c);
1009 }
1010
1011 void drawScrollbar(Graphics g, Color bg, int thickness, int length,
1012 int min, int max, int val, int vis, boolean horizontal) {
1013 Color c = g.getColor();
1014 double f = (double)(length - 2*(thickness-1)) / Math.max(1, ((max - min) + vis));
1015 int v1 = thickness + (int)(f * (val - min));
1016 int v2 = (int)(f * vis);
1017 int w2 = thickness-4;
1018 int tpts_x[] = new int[3];
1019 int tpts_y[] = new int[3];
1020
1021 if (length < 3*w2 ) {
1022 v1 = v2 = 0;
1023 if (length < 2*w2 + 2) {
1024 w2 = (length-2)/2;
1025 }
1026 } else if (v2 < 7) {
1027 // enforce a minimum handle size
1028 v1 = Math.max(0, v1 - ((7 - v2)>>1));
1029 v2 = 7;
1030 }
1031
1032 int ctr = thickness/2;
1033 int sbmin = ctr - w2/2;
1034 int sbmax = ctr + w2/2;
1035
1036 // paint the background slightly darker
1037 {
1038 Color d = new Color((int) (bg.getRed() * 0.85),
1039 (int) (bg.getGreen() * 0.85),
1040 (int) (bg.getBlue() * 0.85));
1041
1042 g.setColor(d);
1043 if (horizontal) {
1044 g.fillRect(0, 0, length, thickness);
1045 } else {
1046 g.fillRect(0, 0, thickness, length);
1047 }
1048 }
1049
1050 // paint the thumb and arrows in the normal background color
1051 g.setColor(bg);
1052 if (v1 > 0) {
1053 if (horizontal) {
1054 g.fillRect(v1, 3, v2, thickness-3);
1055 } else {
1056 g.fillRect(3, v1, thickness-3, v2);
1057 }
1058 }
1059
1060 tpts_x[0] = ctr; tpts_y[0] = 2;
1061 tpts_x[1] = sbmin; tpts_y[1] = w2;
1062 tpts_x[2] = sbmax; tpts_y[2] = w2;
1063 if (horizontal) {
1064 g.fillPolygon(tpts_y, tpts_x, 3);
1065 } else {
1066 g.fillPolygon(tpts_x, tpts_y, 3);
1067 }
1068
1069 tpts_y[0] = length-2;
1070 tpts_y[1] = length-w2;
1071 tpts_y[2] = length-w2;
1072 if (horizontal) {
1073 g.fillPolygon(tpts_y, tpts_x, 3);
1074 } else {
1075 g.fillPolygon(tpts_x, tpts_y, 3);
1076 }
1077
1078 Color highlight = bg.brighter();
1079
1080 // // // // draw the "highlighted" edges
1081 g.setColor(highlight);
1082
1083 // outline & arrows
1084 if (horizontal) {
1085 g.drawLine(1, thickness, length - 1, thickness);
1086 g.drawLine(length - 1, 1, length - 1, thickness);
1087
1088 // arrows
1089 g.drawLine(1, ctr, w2, sbmin);
1090 g.drawLine(length - w2, sbmin, length - w2, sbmax);
1091 g.drawLine(length - w2, sbmin, length - 2, ctr);
1092
1093 } else {
1094 g.drawLine(thickness, 1, thickness, length - 1);
1095 g.drawLine(1, length - 1, thickness, length - 1);
1096
1097 // arrows
1098 g.drawLine(ctr, 1, sbmin, w2);
1099 g.drawLine(sbmin, length - w2, sbmax, length - w2);
1100 g.drawLine(sbmin, length - w2, ctr, length - 2);
1101 }
1102
1103 // thumb
1104 if (v1 > 0) {
1105 if (horizontal) {
1106 g.drawLine(v1, 2, v1 + v2, 2);
1107 g.drawLine(v1, 2, v1, thickness-3);
1108 } else {
1109 g.drawLine(2, v1, 2, v1 + v2);
1110 g.drawLine(2, v1, thickness-3, v1);
1111 }
1112 }
1113
1114 Color shadow = bg.darker();
1115
1116 // // // // draw the "shadowed" edges
1117 g.setColor(shadow);
1118
1119 // outline && arrows
1120 if (horizontal) {
1121 g.drawLine(0, 0, 0, thickness);
1122 g.drawLine(0, 0, length - 1, 0);
1123
1124 // arrows
1125 g.drawLine(w2, sbmin, w2, sbmax);
1126 g.drawLine(w2, sbmax, 1, ctr);
1127 g.drawLine(length-2, ctr, length-w2, sbmax);
1128
1129 } else {
1130 g.drawLine(0, 0, thickness, 0);
1131 g.drawLine(0, 0, 0, length - 1);
1132
1133 // arrows
1134 g.drawLine(sbmin, w2, sbmax, w2);
1135 g.drawLine(sbmax, w2, ctr, 1);
1136 g.drawLine(ctr, length-2, sbmax, length-w2);
1137 }
1138
1139 // thumb
1140 if (v1 > 0) {
1141 if (horizontal) {
1142 g.drawLine(v1 + v2, 2, v1 + v2, thickness-2);
1143 g.drawLine(v1, thickness-2, v1 + v2, thickness-2);
1144 } else {
1145 g.drawLine(2, v1 + v2, thickness-2, v1 + v2);
1146 g.drawLine(thickness-2, v1, thickness-2, v1 + v2);
1147 }
1148 }
1149 g.setColor(c);
1150 }
1151
1152 /**
1153 * The following multibuffering-related methods delegate to our
1154 * associated GraphicsConfig (X11 or GLX) to handle the appropriate
1155 * native windowing system specific actions.
1156 */
1157
1158 private BufferCapabilities backBufferCaps;
1159
1160 public void createBuffers(int numBuffers, BufferCapabilities caps)
1161 throws AWTException
1162 {
1163 if (buffersLog.isLoggable(PlatformLogger.FINE)) {
1164 buffersLog.fine("createBuffers(" + numBuffers + ", " + caps + ")");
1165 }
1166 // set the caps first, they're used when creating the bb
1167 backBufferCaps = caps;
1168 backBuffer = graphicsConfig.createBackBuffer(this, numBuffers, caps);
1169 xBackBuffer = graphicsConfig.createBackBufferImage(target,
1170 backBuffer);
1171 }
1172
1173 @Override
1174 public BufferCapabilities getBackBufferCaps() {
1175 return backBufferCaps;
1176 }
1177
1178 public void flip(int x1, int y1, int x2, int y2,
1179 BufferCapabilities.FlipContents flipAction)
1180 {
1181 if (buffersLog.isLoggable(PlatformLogger.FINE)) {
1182 buffersLog.fine("flip(" + flipAction + ")");
1183 }
1184 if (backBuffer == 0) {
1185 throw new IllegalStateException("Buffers have not been created");
1186 }
1187 graphicsConfig.flip(this, target, xBackBuffer,
1188 x1, y1, x2, y2, flipAction);
1189 }
1190
1191 public Image getBackBuffer() {
1192 if (buffersLog.isLoggable(PlatformLogger.FINE)) {
1193 buffersLog.fine("getBackBuffer()");
1194 }
1195 if (backBuffer == 0) {
1196 throw new IllegalStateException("Buffers have not been created");
1197 }
1198 return xBackBuffer;
1199 }
1200
1201 public void destroyBuffers() {
1202 if (buffersLog.isLoggable(PlatformLogger.FINE)) {
1203 buffersLog.fine("destroyBuffers()");
1204 }
1205 graphicsConfig.destroyBackBuffer(backBuffer);
1206 backBuffer = 0;
1207 xBackBuffer = null;
1208 }
1209
1210 // End of multi-buffering
1211
1212 public void notifyTextComponentChange(boolean add){
1213 Container parent = AWTAccessor.getComponentAccessor().getParent(target);
1214 while(!(parent == null ||
1215 parent instanceof java.awt.Frame ||
1216 parent instanceof java.awt.Dialog)) {
1217 parent = AWTAccessor.getComponentAccessor().getParent(parent);
1218 }
1219
1220 /* FIX ME - FIX ME need to implement InputMethods
1221 if (parent instanceof java.awt.Frame ||
1222 parent instanceof java.awt.Dialog) {
1223 if (add)
1224 ((MInputMethodControl)parent.getPeer()).addTextComponent((MComponentPeer)this);
1225 else
1226 ((MInputMethodControl)parent.getPeer()).removeTextComponent((MComponentPeer)this);
1227 }
1228 */
1229 }
1230
1231 /**
1232 * Returns true if this event is disabled and shouldn't be processed by window
1233 * Currently if target component is disabled the following event will be disabled on window:
1234 * ButtonPress, ButtonRelease, KeyPress, KeyRelease, EnterNotify, LeaveNotify, MotionNotify
1235 */
1236 protected boolean isEventDisabled(XEvent e) {
1237 if (enableLog.isLoggable(PlatformLogger.FINEST)) {
1238 enableLog.finest("Component is {1}, checking for disabled event {0}", e, (isEnabled()?"enabled":"disable"));
1239 }
1240 if (!isEnabled()) {
1241 switch (e.get_type()) {
1242 case XConstants.ButtonPress:
1243 case XConstants.ButtonRelease:
1244 case XConstants.KeyPress:
1245 case XConstants.KeyRelease:
1246 case XConstants.EnterNotify:
1247 case XConstants.LeaveNotify:
1248 case XConstants.MotionNotify:
1249 if (enableLog.isLoggable(PlatformLogger.FINER)) {
1250 enableLog.finer("Event {0} is disable", e);
1251 }
1252 return true;
1253 }
1254 }
1255 switch(e.get_type()) {
1256 case XConstants.MapNotify:
1257 case XConstants.UnmapNotify:
1258 return true;
1259 }
1260 return super.isEventDisabled(e);
1261 }
1262
1263 Color getPeerBackground() {
1264 return background;
1265 }
1266
1267 Color getPeerForeground() {
1268 return foreground;
1269 }
1270
1271 Font getPeerFont() {
1272 return font;
1273 }
1274
1275 Dimension getPeerSize() {
1276 return new Dimension(width,height);
1277 }
1278
1279 public void setBoundsOperation(int operation) {
1280 synchronized(getStateLock()) {
1281 if (boundsOperation == DEFAULT_OPERATION) {
1282 boundsOperation = operation;
1283 } else if (operation == RESET_OPERATION) {
1284 boundsOperation = DEFAULT_OPERATION;
1285 }
1286 }
1287 }
1288
1289 static String operationToString(int operation) {
1290 switch (operation) {
1291 case SET_LOCATION:
1292 return "SET_LOCATION";
1293 case SET_SIZE:
1294 return "SET_SIZE";
1295 case SET_CLIENT_SIZE:
1296 return "SET_CLIENT_SIZE";
1297 default:
1298 case SET_BOUNDS:
1299 return "SET_BOUNDS";
1300 }
1301 }
1302
1303 /**
1304 * Lowers this component at the bottom of the above HW peer. If the above parameter
1305 * is null then the method places this component at the top of the Z-order.
1306 */
1307 public void setZOrder(ComponentPeer above) {
1308 long aboveWindow = (above != null) ? ((XComponentPeer)above).getWindow() : 0;
1309
1310 XToolkit.awtLock();
1311 try{
1312 XlibWrapper.SetZOrder(XToolkit.getDisplay(), getWindow(), aboveWindow);
1313 }finally{
1314 XToolkit.awtUnlock();
1315 }
1316 }
1317
1318 private void addTree(Collection order, Set set, Container cont) {
1319 for (int i = 0; i < cont.getComponentCount(); i++) {
1320 Component comp = cont.getComponent(i);
1321 ComponentPeer peer = comp.getPeer();
1322 if (peer instanceof XComponentPeer) {
1323 Long window = Long.valueOf(((XComponentPeer)peer).getWindow());
1324 if (!set.contains(window)) {
1325 set.add(window);
1326 order.add(window);
1327 }
1328 } else if (comp instanceof Container) {
1329 // It is lightweight container, it might contain heavyweight components attached to this
1330 // peer
1331 addTree(order, set, (Container)comp);
1332 }
1333 }
1334 }
1335
1336 /****** DropTargetPeer implementation ********************/
1337
1338 public void addDropTarget(DropTarget dt) {
1339 Component comp = target;
1340 while(!(comp == null || comp instanceof Window)) {
1341 comp = comp.getParent();
1342 }
1343
1344 if (comp instanceof Window) {
1345 XWindowPeer wpeer = (XWindowPeer)(comp.getPeer());
1346 if (wpeer != null) {
1347 wpeer.addDropTarget();
1348 }
1349 }
1350 }
1351
1352 public void removeDropTarget(DropTarget dt) {
1353 Component comp = target;
1354 while(!(comp == null || comp instanceof Window)) {
1355 comp = comp.getParent();
1356 }
1357
1358 if (comp instanceof Window) {
1359 XWindowPeer wpeer = (XWindowPeer)(comp.getPeer());
1360 if (wpeer != null) {
1361 wpeer.removeDropTarget();
1362 }
1363 }
1364 }
1365
1366 /**
1367 * Applies the shape to the X-window.
1368 * @since 1.7
1369 */
1370 public void applyShape(Region shape) {
1371 if (XlibUtil.isShapingSupported()) {
1372 if (shapeLog.isLoggable(PlatformLogger.FINER)) {
1373 shapeLog.finer(
1374 "*** INFO: Setting shape: PEER: " + this
1375 + "; WINDOW: " + getWindow()
1376 + "; TARGET: " + target
1377 + "; SHAPE: " + shape);
1378 }
1379 XToolkit.awtLock();
1380 try {
1381 if (shape != null) {
1382 XlibWrapper.SetRectangularShape(
1383 XToolkit.getDisplay(),
1384 getWindow(),
1385 shape.getLoX(), shape.getLoY(),
1386 shape.getHiX(), shape.getHiY(),
1387 (shape.isRectangular() ? null : shape)
1388 );
1389 } else {
1390 XlibWrapper.SetRectangularShape(
1391 XToolkit.getDisplay(),
1392 getWindow(),
1393 0, 0,
1394 0, 0,
1395 null
1396 );
1397 }
1398 } finally {
1399 XToolkit.awtUnlock();
1400 }
1401 } else {
1402 if (shapeLog.isLoggable(PlatformLogger.FINER)) {
1403 shapeLog.finer("*** WARNING: Shaping is NOT supported!");
1404 }
1405 }
1406 }
1407
1408 public boolean updateGraphicsData(GraphicsConfiguration gc) {
1409 int oldVisual = -1, newVisual = -1;
1410
1411 if (graphicsConfig != null) {
1412 oldVisual = graphicsConfig.getVisual();
1413 }
1414 if (gc != null && gc instanceof X11GraphicsConfig) {
1415 newVisual = ((X11GraphicsConfig)gc).getVisual();
1416 }
1417
1418 // If the new visual differs from the old one, the peer must be
1419 // recreated because X11 does not allow changing the visual on the fly.
1420 // So we even skip the initGraphicsConfiguration() call.
1421 // The initial assignment should happen though, hence the != -1 thing.
1422 if (oldVisual != -1 && oldVisual != newVisual) {
1423 return true;
1424 }
1425
1426 initGraphicsConfiguration();
1427 doValidateSurface();
1428 return false;
1429 }
1430 }