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 @SuppressWarnings("fallthrough")
552 public void handleEvent(java.awt.AWTEvent e) {
553 if ((e instanceof InputEvent) && !((InputEvent)e).isConsumed() && target.isEnabled()) {
554 if (e instanceof MouseEvent) {
555 if (e instanceof MouseWheelEvent) {
556 handleJavaMouseWheelEvent((MouseWheelEvent) e);
557 }
558 else
559 handleJavaMouseEvent((MouseEvent) e);
560 }
561 else if (e instanceof KeyEvent) {
562 handleF10JavaKeyEvent((KeyEvent)e);
563 handleJavaKeyEvent((KeyEvent)e);
564 }
565 }
566 else if (e instanceof KeyEvent && !((InputEvent)e).isConsumed()) {
567 // even if target is disabled.
568 handleF10JavaKeyEvent((KeyEvent)e);
569 }
570 else if (e instanceof InputMethodEvent) {
571 handleJavaInputMethodEvent((InputMethodEvent) e);
572 }
573
574 int id = e.getID();
575
576 switch(id) {
577 case PaintEvent.PAINT:
578 // Got native painting
579 paintPending = false;
580 // Fallthrough to next statement
581 case PaintEvent.UPDATE:
582 // Skip all painting while layouting and all UPDATEs
583 // while waiting for native paint
584 if (!isLayouting && !paintPending) {
585 paintArea.paint(target,false);
586 }
587 return;
588 case FocusEvent.FOCUS_LOST:
589 case FocusEvent.FOCUS_GAINED:
590 handleJavaFocusEvent(e);
591 break;
592 case WindowEvent.WINDOW_LOST_FOCUS:
593 case WindowEvent.WINDOW_GAINED_FOCUS:
594 handleJavaWindowFocusEvent(e);
595 break;
596 default:
597 break;
598 }
599
600 }
601
602 public Dimension getMinimumSize() {
603 return target.getSize();
604 }
605
606 public Dimension getPreferredSize() {
607 return getMinimumSize();
608 }
609
610 public void layout() {}
611
612 void updateMotifColors(Color bg) {
613 int red = bg.getRed();
614 int green = bg.getGreen();
615 int blue = bg.getBlue();
616
617 darkShadow = new Color(MotifColorUtilities.calculateBottomShadowFromBackground(red,green,blue));
618 lightShadow = new Color(MotifColorUtilities.calculateTopShadowFromBackground(red,green,blue));
619 selectColor= new Color(MotifColorUtilities.calculateSelectFromBackground(red,green,blue));
620 }
621
622 /*
623 * Draw a 3D rectangle using the Motif colors.
624 * "Normal" rectangles have shadows on the bottom.
625 * "Depressed" rectangles (such as pressed buttons) have shadows on the top,
626 * in which case true should be passed for topShadow.
627 */
628 public void drawMotif3DRect(Graphics g,
629 int x, int y, int width, int height,
630 boolean topShadow) {
631 g.setColor(topShadow ? darkShadow : lightShadow);
632 g.drawLine(x, y, x+width, y); // top
633 g.drawLine(x, y+height, x, y); // left
634
635 g.setColor(topShadow ? lightShadow : darkShadow );
636 g.drawLine(x+1, y+height, x+width, y+height); // bottom
637 g.drawLine(x+width, y+height, x+width, y+1); // right
638 }
639
640 @Override
641 public void setBackground(Color c) {
642 if (log.isLoggable(PlatformLogger.Level.FINE)) {
643 log.fine("Set background to " + c);
644 }
645 synchronized (getStateLock()) {
646 if (Objects.equals(background, c)) {
647 return;
648 }
649 background = c;
650 }
651 super.setBackground(c);
652 repaint();
653 }
654
655 @Override
656 public void setForeground(Color c) {
657 if (log.isLoggable(PlatformLogger.Level.FINE)) {
658 log.fine("Set foreground to " + c);
659 }
660 synchronized (getStateLock()) {
661 if (Objects.equals(foreground, c)) {
662 return;
663 }
664 foreground = c;
665 }
666 repaint();
667 }
668
669 /**
670 * Gets the font metrics for the specified font.
671 * @param font the font for which font metrics is to be
672 * obtained
673 * @return the font metrics for <code>font</code>
674 * @see #getFont
675 * @see #getPeer
676 * @see java.awt.peer.ComponentPeer#getFontMetrics(Font)
677 * @see Toolkit#getFontMetrics(Font)
678 * @since JDK1.0
679 */
680 public FontMetrics getFontMetrics(Font font) {
681 if (fontLog.isLoggable(PlatformLogger.Level.FINE)) {
682 fontLog.fine("Getting font metrics for " + font);
683 }
684 return sun.font.FontDesignMetrics.getMetrics(font);
685 }
686
687 @Override
688 public void setFont(Font f) {
689 if (f == null) {
690 f = XWindow.getDefaultFont();
691 }
692 synchronized (getStateLock()) {
693 if (f.equals(font)) {
694 return;
695 }
696 font = f;
697 }
698 // as it stands currently we don't need to do layout since
699 // layout is done in the Component upon setFont.
700 //layout();
701 repaint();
702 }
703
704 public Font getFont() {
705 return font;
706 }
707
708 public void updateCursorImmediately() {
709 XGlobalCursorManager.getCursorManager().updateCursorImmediately();
710 }
711
712 public final void pSetCursor(Cursor cursor) {
713 this.pSetCursor(cursor, true);
714 }
715
716 /*
717 * The method changes the cursor.
718 * @param cursor - a new cursor to change to.
719 * @param ignoreSubComponents - if {@code true} is passed then
720 * the new cursor will be installed on window.
721 * if {@code false} is passed then
722 * subsequent components will try to handle
723 * this request and install their cursor.
724 */
725 //ignoreSubComponents not used here
726 public void pSetCursor(Cursor cursor, boolean ignoreSubComponents) {
727 XToolkit.awtLock();
728 try {
729 long xcursor = XGlobalCursorManager.getCursor(cursor);
730
731 XSetWindowAttributes xwa = new XSetWindowAttributes();
732 xwa.set_cursor(xcursor);
733
734 long valuemask = XConstants.CWCursor;
735
736 XlibWrapper.XChangeWindowAttributes(XToolkit.getDisplay(),getWindow(),valuemask,xwa.pData);
737 XlibWrapper.XFlush(XToolkit.getDisplay());
738 xwa.dispose();
739 } finally {
740 XToolkit.awtUnlock();
741 }
742 }
743
744 public Image createImage(ImageProducer producer) {
745 return new ToolkitImage(producer);
746 }
747
748 public Image createImage(int width, int height) {
749 return graphicsConfig.createAcceleratedImage(target, width, height);
750 }
751
752 public VolatileImage createVolatileImage(int width, int height) {
753 return new SunVolatileImage(target, width, height);
754 }
755
756 public boolean prepareImage(Image img, int w, int h, ImageObserver o) {
757 return Toolkit.getDefaultToolkit().prepareImage(img, w, h, o);
758 }
759
760 public int checkImage(Image img, int w, int h, ImageObserver o) {
761 return Toolkit.getDefaultToolkit().checkImage(img, w, h, o);
762 }
763
764 public Dimension preferredSize() {
765 return getPreferredSize();
766 }
767
768 public Dimension minimumSize() {
769 return getMinimumSize();
770 }
771
772 public Insets getInsets() {
773 return new Insets(0, 0, 0, 0);
774 }
775
776 public void beginValidate() {
777 }
778
779 public void endValidate() {
780 }
781
782
783 /**
784 * DEPRECATED: Replaced by getInsets().
785 */
786
787 public Insets insets() {
788 return getInsets();
789 }
790
791 // Returns true if we are inside begin/endLayout and
792 // are waiting for native painting
793 public boolean isPaintPending() {
794 return paintPending && isLayouting;
795 }
796
797 public boolean handlesWheelScrolling() {
798 return false;
799 }
800
801 public void beginLayout() {
802 // Skip all painting till endLayout
803 isLayouting = true;
804
805 }
806
807 public void endLayout() {
808 if (!paintPending && !paintArea.isEmpty()
809 && !AWTAccessor.getComponentAccessor().getIgnoreRepaint(target))
810 {
811 // if not waiting for native painting repaint damaged area
812 postEvent(new PaintEvent(target, PaintEvent.PAINT,
813 new Rectangle()));
814 }
815 isLayouting = false;
816 }
817
818 public Color getWinBackground() {
819 return getPeerBackground();
820 }
821
822 static int[] getRGBvals(Color c) {
823
824 int rgbvals[] = new int[3];
825
826 rgbvals[0] = c.getRed();
827 rgbvals[1] = c.getGreen();
828 rgbvals[2] = c.getBlue();
829
830 return rgbvals;
831 }
832
833 static final int BACKGROUND_COLOR = 0;
834 static final int HIGHLIGHT_COLOR = 1;
835 static final int SHADOW_COLOR = 2;
836 static final int FOREGROUND_COLOR = 3;
837
838 public Color[] getGUIcolors() {
839 Color c[] = new Color[4];
840 float backb, highb, shadowb, hue, saturation;
841 c[BACKGROUND_COLOR] = getWinBackground();
842 if (c[BACKGROUND_COLOR] == null) {
843 c[BACKGROUND_COLOR] = super.getWinBackground();
844 }
845 if (c[BACKGROUND_COLOR] == null) {
846 c[BACKGROUND_COLOR] = Color.lightGray;
847 }
848
849 int[] rgb = getRGBvals(c[BACKGROUND_COLOR]);
850
851 float[] hsb = Color.RGBtoHSB(rgb[0],rgb[1],rgb[2],null);
852
853 hue = hsb[0];
854 saturation = hsb[1];
855 backb = hsb[2];
856
857
858 /* Calculate Highlight Brightness */
859
860 highb = backb + 0.2f;
861 shadowb = backb - 0.4f;
862 if ((highb > 1.0) ) {
863 if ((1.0 - backb) < 0.05) {
864 highb = shadowb + 0.25f;
865 } else {
866 highb = 1.0f;
867 }
868 } else {
869 if (shadowb < 0.0) {
870 if ((backb - 0.0) < 0.25) {
871 highb = backb + 0.75f;
872 shadowb = highb - 0.2f;
873 } else {
874 shadowb = 0.0f;
875 }
876 }
877 }
878 c[HIGHLIGHT_COLOR] = Color.getHSBColor(hue,saturation,highb);
879 c[SHADOW_COLOR] = Color.getHSBColor(hue,saturation,shadowb);
880
881
882 /*
883 c[SHADOW_COLOR] = c[BACKGROUND_COLOR].darker();
884 int r2 = c[SHADOW_COLOR].getRed();
885 int g2 = c[SHADOW_COLOR].getGreen();
886 int b2 = c[SHADOW_COLOR].getBlue();
887 */
888
889 c[FOREGROUND_COLOR] = getPeerForeground();
890 if (c[FOREGROUND_COLOR] == null) {
891 c[FOREGROUND_COLOR] = Color.black;
892 }
893 /*
894 if ((c[BACKGROUND_COLOR].equals(c[HIGHLIGHT_COLOR]))
895 && (c[BACKGROUND_COLOR].equals(c[SHADOW_COLOR]))) {
896 c[SHADOW_COLOR] = new Color(c[BACKGROUND_COLOR].getRed() + 75,
897 c[BACKGROUND_COLOR].getGreen() + 75,
898 c[BACKGROUND_COLOR].getBlue() + 75);
899 c[HIGHLIGHT_COLOR] = c[SHADOW_COLOR].brighter();
900 } else if (c[BACKGROUND_COLOR].equals(c[HIGHLIGHT_COLOR])) {
901 c[HIGHLIGHT_COLOR] = c[SHADOW_COLOR];
902 c[SHADOW_COLOR] = c[SHADOW_COLOR].darker();
903 }
904 */
905 if (! isEnabled()) {
906 c[BACKGROUND_COLOR] = c[BACKGROUND_COLOR].darker();
907 // Reduce the contrast
908 // Calculate the NTSC gray (NB: REC709 L* might be better!)
909 // for foreground and background; then multiply the foreground
910 // by the average lightness
911
912
913 Color tc = c[BACKGROUND_COLOR];
914 int bg = tc.getRed() * 30 + tc.getGreen() * 59 + tc.getBlue() * 11;
915
916 tc = c[FOREGROUND_COLOR];
917 int fg = tc.getRed() * 30 + tc.getGreen() * 59 + tc.getBlue() * 11;
918
919 float ave = (float) ((fg + bg) / 51000.0);
920 // 255 * 100 * 2
921
922 Color newForeground = new Color((int) (tc.getRed() * ave),
923 (int) (tc.getGreen() * ave),
924 (int) (tc.getBlue() * ave));
925
926 if (newForeground.equals(c[FOREGROUND_COLOR])) {
927 // This probably means the foreground color is black or white
928 newForeground = new Color(ave, ave, ave);
929 }
930 c[FOREGROUND_COLOR] = newForeground;
931
932 }
933
934
935 return c;
936 }
937
938 /**
939 * Returns an array of Colors similar to getGUIcolors(), but using the
940 * System colors. This is useful if pieces of a Component (such as
941 * the integrated scrollbars of a List) should retain the System color
942 * instead of the background color set by Component.setBackground().
943 */
944 static Color[] getSystemColors() {
945 if (systemColors == null) {
946 systemColors = new Color[4];
947 systemColors[BACKGROUND_COLOR] = SystemColor.window;
948 systemColors[HIGHLIGHT_COLOR] = SystemColor.controlLtHighlight;
949 systemColors[SHADOW_COLOR] = SystemColor.controlShadow;
950 systemColors[FOREGROUND_COLOR] = SystemColor.windowText;
951 }
952 return systemColors;
953 }
954
955 /**
956 * Draw a 3D oval.
957 */
958 public void draw3DOval(Graphics g, Color colors[],
959 int x, int y, int w, int h, boolean raised)
960 {
961 Color c = g.getColor();
962 g.setColor(raised ? colors[HIGHLIGHT_COLOR] : colors[SHADOW_COLOR]);
963 g.drawArc(x, y, w, h, 45, 180);
964 g.setColor(raised ? colors[SHADOW_COLOR] : colors[HIGHLIGHT_COLOR]);
965 g.drawArc(x, y, w, h, 225, 180);
966 g.setColor(c);
967 }
968
969 public void draw3DRect(Graphics g, Color colors[],
970 int x, int y, int width, int height, boolean raised)
971 {
972 Color c = g.getColor();
973 g.setColor(raised ? colors[HIGHLIGHT_COLOR] : colors[SHADOW_COLOR]);
974 g.drawLine(x, y, x, y + height);
975 g.drawLine(x + 1, y, x + width - 1, y);
976 g.setColor(raised ? colors[SHADOW_COLOR] : colors[HIGHLIGHT_COLOR]);
977 g.drawLine(x + 1, y + height, x + width, y + height);
978 g.drawLine(x + width, y, x + width, y + height - 1);
979 g.setColor(c);
980 }
981
982 /*
983 * drawXXX() methods are used to print the native components by
984 * rendering the Motif look ourselves.
985 * ToDo(aim): needs to query native motif for more accurate color
986 * information.
987 */
988 void draw3DOval(Graphics g, Color bg,
989 int x, int y, int w, int h, boolean raised)
990 {
991 Color c = g.getColor();
992 Color shadow = bg.darker();
993 Color highlight = bg.brighter();
994
995 g.setColor(raised ? highlight : shadow);
996 g.drawArc(x, y, w, h, 45, 180);
997 g.setColor(raised ? shadow : highlight);
998 g.drawArc(x, y, w, h, 225, 180);
999 g.setColor(c);
1000 }
1001
1002 void draw3DRect(Graphics g, Color bg,
1003 int x, int y, int width, int height,
1004 boolean raised) {
1005 Color c = g.getColor();
1006 Color shadow = bg.darker();
1007 Color highlight = bg.brighter();
1008
1009 g.setColor(raised ? highlight : shadow);
1010 g.drawLine(x, y, x, y + height);
1011 g.drawLine(x + 1, y, x + width - 1, y);
1012 g.setColor(raised ? shadow : highlight);
1013 g.drawLine(x + 1, y + height, x + width, y + height);
1014 g.drawLine(x + width, y, x + width, y + height - 1);
1015 g.setColor(c);
1016 }
1017
1018 void drawScrollbar(Graphics g, Color bg, int thickness, int length,
1019 int min, int max, int val, int vis, boolean horizontal) {
1020 Color c = g.getColor();
1021 double f = (double)(length - 2*(thickness-1)) / Math.max(1, ((max - min) + vis));
1022 int v1 = thickness + (int)(f * (val - min));
1023 int v2 = (int)(f * vis);
1024 int w2 = thickness-4;
1025 int tpts_x[] = new int[3];
1026 int tpts_y[] = new int[3];
1027
1028 if (length < 3*w2 ) {
1029 v1 = v2 = 0;
1030 if (length < 2*w2 + 2) {
1031 w2 = (length-2)/2;
1032 }
1033 } else if (v2 < 7) {
1034 // enforce a minimum handle size
1035 v1 = Math.max(0, v1 - ((7 - v2)>>1));
1036 v2 = 7;
1037 }
1038
1039 int ctr = thickness/2;
1040 int sbmin = ctr - w2/2;
1041 int sbmax = ctr + w2/2;
1042
1043 // paint the background slightly darker
1044 {
1045 Color d = new Color((int) (bg.getRed() * 0.85),
1046 (int) (bg.getGreen() * 0.85),
1047 (int) (bg.getBlue() * 0.85));
1048
1049 g.setColor(d);
1050 if (horizontal) {
1051 g.fillRect(0, 0, length, thickness);
1052 } else {
1053 g.fillRect(0, 0, thickness, length);
1054 }
1055 }
1056
1057 // paint the thumb and arrows in the normal background color
1058 g.setColor(bg);
1059 if (v1 > 0) {
1060 if (horizontal) {
1061 g.fillRect(v1, 3, v2, thickness-3);
1062 } else {
1063 g.fillRect(3, v1, thickness-3, v2);
1064 }
1065 }
1066
1067 tpts_x[0] = ctr; tpts_y[0] = 2;
1068 tpts_x[1] = sbmin; tpts_y[1] = w2;
1069 tpts_x[2] = sbmax; tpts_y[2] = w2;
1070 if (horizontal) {
1071 g.fillPolygon(tpts_y, tpts_x, 3);
1072 } else {
1073 g.fillPolygon(tpts_x, tpts_y, 3);
1074 }
1075
1076 tpts_y[0] = length-2;
1077 tpts_y[1] = length-w2;
1078 tpts_y[2] = length-w2;
1079 if (horizontal) {
1080 g.fillPolygon(tpts_y, tpts_x, 3);
1081 } else {
1082 g.fillPolygon(tpts_x, tpts_y, 3);
1083 }
1084
1085 Color highlight = bg.brighter();
1086
1087 // // // // draw the "highlighted" edges
1088 g.setColor(highlight);
1089
1090 // outline & arrows
1091 if (horizontal) {
1092 g.drawLine(1, thickness, length - 1, thickness);
1093 g.drawLine(length - 1, 1, length - 1, thickness);
1094
1095 // arrows
1096 g.drawLine(1, ctr, w2, sbmin);
1097 g.drawLine(length - w2, sbmin, length - w2, sbmax);
1098 g.drawLine(length - w2, sbmin, length - 2, ctr);
1099
1100 } else {
1101 g.drawLine(thickness, 1, thickness, length - 1);
1102 g.drawLine(1, length - 1, thickness, length - 1);
1103
1104 // arrows
1105 g.drawLine(ctr, 1, sbmin, w2);
1106 g.drawLine(sbmin, length - w2, sbmax, length - w2);
1107 g.drawLine(sbmin, length - w2, ctr, length - 2);
1108 }
1109
1110 // thumb
1111 if (v1 > 0) {
1112 if (horizontal) {
1113 g.drawLine(v1, 2, v1 + v2, 2);
1114 g.drawLine(v1, 2, v1, thickness-3);
1115 } else {
1116 g.drawLine(2, v1, 2, v1 + v2);
1117 g.drawLine(2, v1, thickness-3, v1);
1118 }
1119 }
1120
1121 Color shadow = bg.darker();
1122
1123 // // // // draw the "shadowed" edges
1124 g.setColor(shadow);
1125
1126 // outline && arrows
1127 if (horizontal) {
1128 g.drawLine(0, 0, 0, thickness);
1129 g.drawLine(0, 0, length - 1, 0);
1130
1131 // arrows
1132 g.drawLine(w2, sbmin, w2, sbmax);
1133 g.drawLine(w2, sbmax, 1, ctr);
1134 g.drawLine(length-2, ctr, length-w2, sbmax);
1135
1136 } else {
1137 g.drawLine(0, 0, thickness, 0);
1138 g.drawLine(0, 0, 0, length - 1);
1139
1140 // arrows
1141 g.drawLine(sbmin, w2, sbmax, w2);
1142 g.drawLine(sbmax, w2, ctr, 1);
1143 g.drawLine(ctr, length-2, sbmax, length-w2);
1144 }
1145
1146 // thumb
1147 if (v1 > 0) {
1148 if (horizontal) {
1149 g.drawLine(v1 + v2, 2, v1 + v2, thickness-2);
1150 g.drawLine(v1, thickness-2, v1 + v2, thickness-2);
1151 } else {
1152 g.drawLine(2, v1 + v2, thickness-2, v1 + v2);
1153 g.drawLine(thickness-2, v1, thickness-2, v1 + v2);
1154 }
1155 }
1156 g.setColor(c);
1157 }
1158
1159 /**
1160 * The following multibuffering-related methods delegate to our
1161 * associated GraphicsConfig (X11 or GLX) to handle the appropriate
1162 * native windowing system specific actions.
1163 */
1164
1165 private BufferCapabilities backBufferCaps;
1166
1167 public void createBuffers(int numBuffers, BufferCapabilities caps)
1168 throws AWTException
1169 {
1170 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1171 buffersLog.fine("createBuffers(" + numBuffers + ", " + caps + ")");
1172 }
1173 // set the caps first, they're used when creating the bb
1174 backBufferCaps = caps;
1175 backBuffer = graphicsConfig.createBackBuffer(this, numBuffers, caps);
1176 xBackBuffer = graphicsConfig.createBackBufferImage(target,
1177 backBuffer);
1178 }
1179
1180 @Override
1181 public BufferCapabilities getBackBufferCaps() {
1182 return backBufferCaps;
1183 }
1184
1185 public void flip(int x1, int y1, int x2, int y2,
1186 BufferCapabilities.FlipContents flipAction)
1187 {
1188 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1189 buffersLog.fine("flip(" + flipAction + ")");
1190 }
1191 if (backBuffer == 0) {
1192 throw new IllegalStateException("Buffers have not been created");
1193 }
1194 graphicsConfig.flip(this, target, xBackBuffer,
1195 x1, y1, x2, y2, flipAction);
1196 }
1197
1198 public Image getBackBuffer() {
1199 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1200 buffersLog.fine("getBackBuffer()");
1201 }
1202 if (backBuffer == 0) {
1203 throw new IllegalStateException("Buffers have not been created");
1204 }
1205 return xBackBuffer;
1206 }
1207
1208 public void destroyBuffers() {
1209 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1210 buffersLog.fine("destroyBuffers()");
1211 }
1212 graphicsConfig.destroyBackBuffer(backBuffer);
1213 backBuffer = 0;
1214 xBackBuffer = null;
1215 }
1216
1217 // End of multi-buffering
1218
1219 public void notifyTextComponentChange(boolean add){
1220 Container parent = AWTAccessor.getComponentAccessor().getParent(target);
1221 while(!(parent == null ||
1222 parent instanceof java.awt.Frame ||
1223 parent instanceof java.awt.Dialog)) {
1224 parent = AWTAccessor.getComponentAccessor().getParent(parent);
1225 }
1226
1227 /* FIX ME - FIX ME need to implement InputMethods
1228 if (parent instanceof java.awt.Frame ||
1229 parent instanceof java.awt.Dialog) {
1230 if (add)
1231 ((MInputMethodControl)parent.getPeer()).addTextComponent((MComponentPeer)this);
1232 else
1233 ((MInputMethodControl)parent.getPeer()).removeTextComponent((MComponentPeer)this);
1234 }
1235 */
1236 }
1237
1238 /**
1239 * Returns true if this event is disabled and shouldn't be processed by window
1240 * Currently if target component is disabled the following event will be disabled on window:
1241 * ButtonPress, ButtonRelease, KeyPress, KeyRelease, EnterNotify, LeaveNotify, MotionNotify
1242 */
1243 protected boolean isEventDisabled(XEvent e) {
1244 if (enableLog.isLoggable(PlatformLogger.Level.FINEST)) {
1245 enableLog.finest("Component is {1}, checking for disabled event {0}", e, (isEnabled()?"enabled":"disable"));
1246 }
1247 if (!isEnabled()) {
1248 switch (e.get_type()) {
1249 case XConstants.ButtonPress:
1250 case XConstants.ButtonRelease:
1251 case XConstants.KeyPress:
1252 case XConstants.KeyRelease:
1253 case XConstants.EnterNotify:
1254 case XConstants.LeaveNotify:
1255 case XConstants.MotionNotify:
1256 if (enableLog.isLoggable(PlatformLogger.Level.FINER)) {
1257 enableLog.finer("Event {0} is disable", e);
1258 }
1259 return true;
1260 }
1261 }
1262 switch(e.get_type()) {
1263 case XConstants.MapNotify:
1264 case XConstants.UnmapNotify:
1265 return true;
1266 }
1267 return super.isEventDisabled(e);
1268 }
1269
1270 Color getPeerBackground() {
1271 return background;
1272 }
1273
1274 Color getPeerForeground() {
1275 return foreground;
1276 }
1277
1278 Font getPeerFont() {
1279 return font;
1280 }
1281
1282 Dimension getPeerSize() {
1283 return new Dimension(width,height);
1284 }
1285
1286 public void setBoundsOperation(int operation) {
1287 synchronized(getStateLock()) {
1288 if (boundsOperation == DEFAULT_OPERATION) {
1289 boundsOperation = operation;
1290 } else if (operation == RESET_OPERATION) {
1291 boundsOperation = DEFAULT_OPERATION;
1292 }
1293 }
1294 }
1295
1296 static String operationToString(int operation) {
1297 switch (operation) {
1298 case SET_LOCATION:
1299 return "SET_LOCATION";
1300 case SET_SIZE:
1301 return "SET_SIZE";
1302 case SET_CLIENT_SIZE:
1303 return "SET_CLIENT_SIZE";
1304 default:
1305 case SET_BOUNDS:
1306 return "SET_BOUNDS";
1307 }
1308 }
1309
1310 /**
1311 * Lowers this component at the bottom of the above HW peer. If the above parameter
1312 * is null then the method places this component at the top of the Z-order.
1313 */
1314 public void setZOrder(ComponentPeer above) {
1315 long aboveWindow = (above != null) ? ((XComponentPeer)above).getWindow() : 0;
1316
1317 XToolkit.awtLock();
1318 try{
1319 XlibWrapper.SetZOrder(XToolkit.getDisplay(), getWindow(), aboveWindow);
1320 }finally{
1321 XToolkit.awtUnlock();
1322 }
1323 }
1324
1325 private void addTree(Collection order, Set set, Container cont) {
1326 for (int i = 0; i < cont.getComponentCount(); i++) {
1327 Component comp = cont.getComponent(i);
1328 ComponentPeer peer = comp.getPeer();
1329 if (peer instanceof XComponentPeer) {
1330 Long window = Long.valueOf(((XComponentPeer)peer).getWindow());
1331 if (!set.contains(window)) {
1332 set.add(window);
1333 order.add(window);
1334 }
1335 } else if (comp instanceof Container) {
1336 // It is lightweight container, it might contain heavyweight components attached to this
1337 // peer
1338 addTree(order, set, (Container)comp);
1339 }
1340 }
1341 }
1342
1343 /****** DropTargetPeer implementation ********************/
1344
1345 public void addDropTarget(DropTarget dt) {
1346 Component comp = target;
1347 while(!(comp == null || comp instanceof Window)) {
1348 comp = comp.getParent();
1349 }
1350
1351 if (comp instanceof Window) {
1352 XWindowPeer wpeer = (XWindowPeer)(comp.getPeer());
1353 if (wpeer != null) {
1354 wpeer.addDropTarget();
1355 }
1356 }
1357 }
1358
1359 public void removeDropTarget(DropTarget dt) {
1360 Component comp = target;
1361 while(!(comp == null || comp instanceof Window)) {
1362 comp = comp.getParent();
1363 }
1364
1365 if (comp instanceof Window) {
1366 XWindowPeer wpeer = (XWindowPeer)(comp.getPeer());
1367 if (wpeer != null) {
1368 wpeer.removeDropTarget();
1369 }
1370 }
1371 }
1372
1373 /**
1374 * Applies the shape to the X-window.
1375 * @since 1.7
1376 */
1377 public void applyShape(Region shape) {
1378 if (XlibUtil.isShapingSupported()) {
1379 if (shapeLog.isLoggable(PlatformLogger.Level.FINER)) {
1380 shapeLog.finer(
1381 "*** INFO: Setting shape: PEER: " + this
1382 + "; WINDOW: " + getWindow()
1383 + "; TARGET: " + target
1384 + "; SHAPE: " + shape);
1385 }
1386 XToolkit.awtLock();
1387 try {
1388 if (shape != null) {
1389 XlibWrapper.SetRectangularShape(
1390 XToolkit.getDisplay(),
1391 getWindow(),
1392 shape.getLoX(), shape.getLoY(),
1393 shape.getHiX(), shape.getHiY(),
1394 (shape.isRectangular() ? null : shape)
1395 );
1396 } else {
1397 XlibWrapper.SetRectangularShape(
1398 XToolkit.getDisplay(),
1399 getWindow(),
1400 0, 0,
1401 0, 0,
1402 null
1403 );
1404 }
1405 } finally {
1406 XToolkit.awtUnlock();
1407 }
1408 } else {
1409 if (shapeLog.isLoggable(PlatformLogger.Level.FINER)) {
1410 shapeLog.finer("*** WARNING: Shaping is NOT supported!");
1411 }
1412 }
1413 }
1414
1415 public boolean updateGraphicsData(GraphicsConfiguration gc) {
1416 int oldVisual = -1, newVisual = -1;
1417
1418 if (graphicsConfig != null) {
1419 oldVisual = graphicsConfig.getVisual();
1420 }
1421 if (gc != null && gc instanceof X11GraphicsConfig) {
1422 newVisual = ((X11GraphicsConfig)gc).getVisual();
1423 }
1424
1425 // If the new visual differs from the old one, the peer must be
1426 // recreated because X11 does not allow changing the visual on the fly.
1427 // So we even skip the initGraphicsConfiguration() call.
1428 // The initial assignment should happen though, hence the != -1 thing.
1429 if (oldVisual != -1 && oldVisual != newVisual) {
1430 return true;
1431 }
1432
1433 initGraphicsConfiguration();
1434 doValidateSurface();
1435 return false;
1436 }
1437 }