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