1 /*
2 * Copyright (c) 2002, 2020, 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
26 package sun.awt.X11;
27
28 import java.awt.AWTEvent;
29 import java.awt.AWTException;
30 import java.awt.BufferCapabilities;
31 import java.awt.Color;
32 import java.awt.Component;
33 import java.awt.Container;
34 import java.awt.Cursor;
35 import java.awt.Dimension;
36 import java.awt.Font;
37 import java.awt.FontMetrics;
38 import java.awt.Graphics;
39 import java.awt.GraphicsConfiguration;
40 import java.awt.Image;
41 import java.awt.Insets;
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.image.VolatileImage;
57 import java.awt.peer.ComponentPeer;
58 import java.awt.peer.ContainerPeer;
59 import java.util.Collection;
60 import java.util.Objects;
61 import java.util.Set;
62
63 import sun.awt.AWTAccessor;
64 import sun.awt.AWTAccessor.ComponentAccessor;
65 import sun.awt.SunToolkit;
66 import sun.awt.X11GraphicsConfig;
67 import sun.awt.event.IgnorePaintEvent;
68 import sun.awt.image.SunVolatileImage;
69 import sun.java2d.BackBufferCapsProvider;
70 import sun.java2d.pipe.Region;
71 import sun.util.logging.PlatformLogger;
72
73
74 public class XComponentPeer extends XWindow implements ComponentPeer, DropTargetPeer,
75 BackBufferCapsProvider
76 {
77 private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XComponentPeer");
78 private static final PlatformLogger buffersLog = PlatformLogger.getLogger("sun.awt.X11.XComponentPeer.multibuffer");
79 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.awt.X11.focus.XComponentPeer");
80 private static final PlatformLogger fontLog = PlatformLogger.getLogger("sun.awt.X11.font.XComponentPeer");
81 private static final PlatformLogger enableLog = PlatformLogger.getLogger("sun.awt.X11.enable.XComponentPeer");
82 private static final PlatformLogger shapeLog = PlatformLogger.getLogger("sun.awt.X11.shape.XComponentPeer");
83
84 boolean paintPending = false;
85 boolean isLayouting = false;
86 private boolean enabled;
87
88 // Actually used only by XDecoratedPeer
89 protected int boundsOperation;
90
91 Color foreground;
92 Color background;
93
94 // Colors calculated as on Motif using MotifColorUtilties.
95 // If you use these, call updateMotifColors() in the peer's Constructor and
96 // setBackground(). Examples are XCheckboxPeer and XButtonPeer.
97 Color darkShadow;
98 Color lightShadow;
99 Color selectColor;
100
101 Font font;
102 private long backBuffer = 0;
103 private VolatileImage xBackBuffer = null;
104
105 static Color[] systemColors;
106
107 XComponentPeer() {
108 }
109
110 XComponentPeer (XCreateWindowParams params) {
111 super(params);
112 }
113
114 XComponentPeer(Component target, long parentWindow, Rectangle bounds) {
115 super(target, parentWindow, bounds);
116 }
117
118 /**
119 * Standard peer constructor, with corresponding Component
120 */
121 XComponentPeer(Component target) {
122 super(target);
123 }
124
125
126 void preInit(XCreateWindowParams params) {
127 super.preInit(params);
128 boundsOperation = DEFAULT_OPERATION;
129 }
130 void postInit(XCreateWindowParams params) {
131 super.postInit(params);
132
133 pSetCursor(target.getCursor());
134
135 foreground = target.getForeground();
136 background = target.getBackground();
137 font = target.getFont();
138
139 if (isInitialReshape()) {
140 Rectangle r = target.getBounds();
141 reshape(r.x, r.y, r.width, r.height);
142 }
143
144 setEnabled(target.isEnabled());
145
146 if (target.isVisible()) {
147 setVisible(true);
148 }
149 }
150
151 protected boolean isInitialReshape() {
152 return true;
153 }
154
155 public void reparent(ContainerPeer newNativeParent) {
156 XComponentPeer newPeer = (XComponentPeer)newNativeParent;
157 XToolkit.awtLock();
158 try {
159 XlibWrapper.XReparentWindow(XToolkit.getDisplay(),
160 getWindow(), newPeer.getContentWindow(),
161 scaleUp(x), scaleUp(y));
162 parentWindow = newPeer;
163 } finally {
164 XToolkit.awtUnlock();
165 }
166 }
167 public boolean isReparentSupported() {
168 return System.getProperty("sun.awt.X11.XComponentPeer.reparentNotSupported", "false").equals("false");
169 }
170
171 @SuppressWarnings("deprecation")
172 public boolean isObscured() {
173 Container container = (target instanceof Container) ?
174 (Container)target : target.getParent();
175
176 if (container == null) {
177 return true;
178 }
179
180 Container parent;
181 while ((parent = container.getParent()) != null) {
182 container = parent;
183 }
184
185 if (container instanceof Window) {
186 XWindowPeer wpeer = AWTAccessor.getComponentAccessor()
187 .getPeer(container);
188 if (wpeer != null) {
189 return (wpeer.winAttr.visibilityState !=
190 XWindowAttributesData.AWT_UNOBSCURED);
191 }
192 }
193 return true;
194 }
195
196 public boolean canDetermineObscurity() {
197 return true;
198 }
199
200 /*************************************************
201 * FOCUS STUFF
202 *************************************************/
203
204 /**
205 * Keeps the track of focused state of the _NATIVE_ window
206 */
207 boolean bHasFocus = false;
208
209 /**
210 * Descendants should use this method to determine whether or not native window
211 * has focus.
212 */
213 public final boolean hasFocus() {
214 return bHasFocus;
215 }
216
217 /**
218 * Called when component receives focus
219 */
220 public void focusGained(FocusEvent e) {
221 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
222 focusLog.fine("{0}", e);
223 }
224 bHasFocus = true;
225 }
226
227 /**
228 * Called when component loses focus
229 */
230 public void focusLost(FocusEvent e) {
231 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
232 focusLog.fine("{0}", e);
233 }
234 bHasFocus = false;
235 }
236
237 public boolean isFocusable() {
238 /* should be implemented by other sub-classes */
239 return false;
240 }
241
242 static final AWTEvent wrapInSequenced(AWTEvent event) {
243 return AWTAccessor.getSequencedEventAccessor().create(event);
244 }
245
246 // TODO: consider moving it to KeyboardFocusManagerPeerImpl
247 @SuppressWarnings("deprecation")
248 public final boolean requestFocus(Component lightweightChild, boolean temporary,
249 boolean focusedWindowChangeAllowed, long time,
250 FocusEvent.Cause cause)
251 {
252 if (XKeyboardFocusManagerPeer.
253 processSynchronousLightweightTransfer(target, lightweightChild, temporary,
254 focusedWindowChangeAllowed, time))
255 {
256 return true;
257 }
258
259 int result = XKeyboardFocusManagerPeer.
260 shouldNativelyFocusHeavyweight(target, lightweightChild,
261 temporary, focusedWindowChangeAllowed,
262 time, cause);
263
264 switch (result) {
265 case XKeyboardFocusManagerPeer.SNFH_FAILURE:
266 return false;
267 case XKeyboardFocusManagerPeer.SNFH_SUCCESS_PROCEED:
268 // Currently we just generate focus events like we deal with lightweight instead of calling
269 // XSetInputFocus on native window
270 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
271 focusLog.finer("Proceeding with request to " +
272 lightweightChild + " in " + target);
273 }
274 /**
275 * The problems with requests in non-focused window arise because shouldNativelyFocusHeavyweight
276 * checks that native window is focused while appropriate WINDOW_GAINED_FOCUS has not yet
277 * been processed - it is in EventQueue. Thus, SNFH allows native request and stores request record
278 * in requests list - and it breaks our requests sequence as first record on WGF should be the last
279 * focus owner which had focus before WLF. So, we should not add request record for such requests
280 * but store this component in mostRecent - and return true as before for compatibility.
281 */
282 Window parentWindow = SunToolkit.getContainingWindow(target);
283 if (parentWindow == null) {
284 return rejectFocusRequestHelper("WARNING: Parent window is null");
285 }
286 XWindowPeer wpeer = AWTAccessor.getComponentAccessor()
287 .getPeer(parentWindow);
288 if (wpeer == null) {
289 return rejectFocusRequestHelper("WARNING: Parent window's peer is null");
290 }
291 /*
292 * Passing null 'actualFocusedWindow' as we don't want to restore focus on it
293 * when a component inside a Frame is requesting focus.
294 * See 6314575 for details.
295 */
296 boolean res = wpeer.requestWindowFocus(null);
297
298 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
299 focusLog.finer("Requested window focus: " + res);
300 }
301 // If parent window can be made focused and has been made focused(synchronously)
302 // then we can proceed with children, otherwise we retreat.
303 if (!(res && parentWindow.isFocused())) {
304 return rejectFocusRequestHelper("Waiting for asynchronous processing of the request");
305 }
306 return XKeyboardFocusManagerPeer.deliverFocus(lightweightChild,
307 target,
308 temporary,
309 focusedWindowChangeAllowed,
310 time, cause);
311 // Motif compatibility code
312 case XKeyboardFocusManagerPeer.SNFH_SUCCESS_HANDLED:
313 // Either lightweight or excessive request - all events are generated.
314 return true;
315 }
316 return false;
317 }
318
319 private boolean rejectFocusRequestHelper(String logMsg) {
320 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
321 focusLog.finer(logMsg);
322 }
323 XKeyboardFocusManagerPeer.removeLastFocusRequest(target);
324 return false;
325 }
326
327 void handleJavaFocusEvent(AWTEvent e) {
328 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
329 focusLog.finer(e.toString());
330 }
331 if (e.getID() == FocusEvent.FOCUS_GAINED) {
332 focusGained((FocusEvent)e);
333 } else {
334 focusLost((FocusEvent)e);
335 }
336 }
337
338 void handleJavaWindowFocusEvent(AWTEvent e) {
339 }
340
341 /*************************************************
342 * END OF FOCUS STUFF
343 *************************************************/
344
345
346
347 public void setVisible(boolean b) {
348 xSetVisible(b);
349 }
350
351 public void hide() {
352 setVisible(false);
353 }
354
355 /**
356 * @see java.awt.peer.ComponentPeer
357 */
358 public void setEnabled(final boolean value) {
359 if (enableLog.isLoggable(PlatformLogger.Level.FINE)) {
360 enableLog.fine("{0}ing {1}", (value ? "Enabl" : "Disabl"), this);
361 }
362 boolean status = value;
363 // If any of our heavyweight ancestors are disable, we should be too
364 // See 6176875 for more information
365 final Container cp = SunToolkit.getNativeContainer(target);
366 final ComponentAccessor acc = AWTAccessor.getComponentAccessor();
367 if (cp != null) {
368 status &= acc.<XComponentPeer>getPeer(cp).isEnabled();
369 }
370 synchronized (getStateLock()) {
371 if (enabled == status) {
372 return;
373 }
374 enabled = status;
375 }
376
377 if (target instanceof Container) {
378 final Component[] list = ((Container) target).getComponents();
379 for (final Component child : list) {
380 final ComponentPeer p = acc.getPeer(child);
381 if (p != null) {
382 p.setEnabled(status && child.isEnabled());
383 }
384 }
385 }
386 repaint();
387 }
388
389 //
390 // public so aw/Window can call it
391 //
392 public final boolean isEnabled() {
393 synchronized (getStateLock()) {
394 return enabled;
395 }
396 }
397
398 @Override
399 public void paint(final Graphics g) {
400 super.paint(g);
401 // allow target to change the picture
402 target.paint(g);
403 }
404
405 public Graphics getGraphics() {
406 return getGraphics(surfaceData, getPeerForeground(), getPeerBackground(), getPeerFont());
407 }
408 public void print(Graphics g) {
409 // clear rect here to emulate X clears rect before Expose
410 g.setColor(target.getBackground());
411 g.fillRect(0, 0, target.getWidth(), target.getHeight());
412 g.setColor(target.getForeground());
413 // paint peer
414 paintPeer(g);
415 // allow target to change the picture
416 target.print(g);
417 }
418
419 public void setBounds(int x, int y, int width, int height, int op) {
420 this.x = x;
421 this.y = y;
422 this.width = width;
423 this.height = height;
424 xSetBounds(x,y,width,height);
425 validateSurface();
426 layout();
427 }
428
429 public void reshape(int x, int y, int width, int height) {
430 setBounds(x, y, width, height, SET_BOUNDS);
431 }
432
433 public void coalescePaintEvent(PaintEvent e) {
434 Rectangle r = e.getUpdateRect();
435 if (!(e instanceof IgnorePaintEvent)) {
436 paintArea.add(r, e.getID());
437 }
438 if (true) {
439 switch(e.getID()) {
440 case PaintEvent.UPDATE:
441 if (log.isLoggable(PlatformLogger.Level.FINER)) {
442 log.finer("XCP coalescePaintEvent : UPDATE : add : x = " +
443 r.x + ", y = " + r.y + ", width = " + r.width + ",height = " + r.height);
444 }
445 return;
446 case PaintEvent.PAINT:
447 if (log.isLoggable(PlatformLogger.Level.FINER)) {
448 log.finer("XCP coalescePaintEvent : PAINT : add : x = " +
449 r.x + ", y = " + r.y + ", width = " + r.width + ",height = " + r.height);
450 }
451 return;
452 }
453 }
454 }
455
456 XWindowPeer getParentTopLevel() {
457 ComponentAccessor compAccessor = AWTAccessor.getComponentAccessor();
458 Container parent = (target instanceof Container) ? ((Container)target) : (compAccessor.getParent(target));
459 // Search for parent window
460 while (parent != null && !(parent instanceof Window)) {
461 parent = compAccessor.getParent(parent);
462 }
463 if (parent != null) {
464 return (XWindowPeer)compAccessor.getPeer(parent);
465 } else {
466 return null;
467 }
468 }
469
470 /* This method is intended to be over-ridden by peers to perform user interaction */
471 void handleJavaMouseEvent(MouseEvent e) {
472 switch (e.getID()) {
473 case MouseEvent.MOUSE_PRESSED:
474 if (target == e.getSource() &&
475 !target.isFocusOwner() &&
476 XKeyboardFocusManagerPeer.shouldFocusOnClick(target))
477 {
478 XWindowPeer parentXWindow = getParentTopLevel();
479 Window parentWindow = ((Window)parentXWindow.getTarget());
480 // Simple windows are non-focusable in X terms but focusable in Java terms.
481 // As X-non-focusable they don't receive any focus events - we should generate them
482 // by ourselfves.
483 // if (parentXWindow.isFocusableWindow() /*&& parentXWindow.isSimpleWindow()*/ &&
484 // !(getCurrentNativeFocusedWindow() == parentWindow))
485 // {
486 // setCurrentNativeFocusedWindow(parentWindow);
487 // WindowEvent wfg = new WindowEvent(parentWindow, WindowEvent.WINDOW_GAINED_FOCUS);
488 // parentWindow.dispatchEvent(wfg);
489 // }
490 XKeyboardFocusManagerPeer.requestFocusFor(target, FocusEvent.Cause.MOUSE_EVENT);
491 }
492 break;
493 }
494 }
495
496 /* This method is intended to be over-ridden by peers to perform user interaction */
497 void handleJavaKeyEvent(KeyEvent e) {
498 }
499
500 /* This method is intended to be over-ridden by peers to perform user interaction */
501 void handleJavaMouseWheelEvent(MouseWheelEvent e) {
502 }
503
504
505 /* This method is intended to be over-ridden by peers to perform user interaction */
506 void handleJavaInputMethodEvent(InputMethodEvent e) {
507 }
508
509 void handleF10JavaKeyEvent(KeyEvent e) {
510 if (e.getID() == KeyEvent.KEY_PRESSED && e.getKeyCode() == KeyEvent.VK_F10) {
511 XWindowPeer winPeer = this.getToplevelXWindow();
512 if (winPeer instanceof XFramePeer) {
513 XMenuBarPeer mPeer = ((XFramePeer)winPeer).getMenubarPeer();
514 if (mPeer != null) {
515 mPeer.handleF10KeyPress(e);
516 }
517 }
518 }
519 }
520
521 @SuppressWarnings("fallthrough")
522 public void handleEvent(java.awt.AWTEvent e) {
523 if ((e instanceof InputEvent) && !((InputEvent)e).isConsumed() && target.isEnabled()) {
524 if (e instanceof MouseEvent) {
525 if (e instanceof MouseWheelEvent) {
526 handleJavaMouseWheelEvent((MouseWheelEvent) e);
527 }
528 else
529 handleJavaMouseEvent((MouseEvent) e);
530 }
531 else if (e instanceof KeyEvent) {
532 handleF10JavaKeyEvent((KeyEvent)e);
533 handleJavaKeyEvent((KeyEvent)e);
534 }
535 }
536 else if (e instanceof KeyEvent && !((InputEvent)e).isConsumed()) {
537 // even if target is disabled.
538 handleF10JavaKeyEvent((KeyEvent)e);
539 }
540 else if (e instanceof InputMethodEvent) {
541 handleJavaInputMethodEvent((InputMethodEvent) e);
542 }
543
544 int id = e.getID();
545
546 switch(id) {
547 case PaintEvent.PAINT:
548 // Got native painting
549 paintPending = false;
550 // Fallthrough to next statement
551 case PaintEvent.UPDATE:
552 // Skip all painting while layouting and all UPDATEs
553 // while waiting for native paint
554 if (!isLayouting && !paintPending) {
555 paintArea.paint(target,false);
556 }
557 return;
558 case FocusEvent.FOCUS_LOST:
559 case FocusEvent.FOCUS_GAINED:
560 handleJavaFocusEvent(e);
561 break;
562 case WindowEvent.WINDOW_LOST_FOCUS:
563 case WindowEvent.WINDOW_GAINED_FOCUS:
564 handleJavaWindowFocusEvent(e);
565 break;
566 default:
567 break;
568 }
569
570 }
571
572 public Dimension getMinimumSize() {
573 return target.getSize();
574 }
575
576 public Dimension getPreferredSize() {
577 return getMinimumSize();
578 }
579
580 public void layout() {}
581
582 void updateMotifColors(Color bg) {
583 int red = bg.getRed();
584 int green = bg.getGreen();
585 int blue = bg.getBlue();
586
587 darkShadow = new Color(MotifColorUtilities.calculateBottomShadowFromBackground(red,green,blue));
588 lightShadow = new Color(MotifColorUtilities.calculateTopShadowFromBackground(red,green,blue));
589 selectColor= new Color(MotifColorUtilities.calculateSelectFromBackground(red,green,blue));
590 }
591
592 /*
593 * Draw a 3D rectangle using the Motif colors.
594 * "Normal" rectangles have shadows on the bottom.
595 * "Depressed" rectangles (such as pressed buttons) have shadows on the top,
596 * in which case true should be passed for topShadow.
597 */
598 public void drawMotif3DRect(Graphics g,
599 int x, int y, int width, int height,
600 boolean topShadow) {
601 g.setColor(topShadow ? darkShadow : lightShadow);
602 g.drawLine(x, y, x+width, y); // top
603 g.drawLine(x, y+height, x, y); // left
604
605 g.setColor(topShadow ? lightShadow : darkShadow );
606 g.drawLine(x+1, y+height, x+width, y+height); // bottom
607 g.drawLine(x+width, y+height, x+width, y+1); // right
608 }
609
610 @Override
611 public void setBackground(Color c) {
612 if (log.isLoggable(PlatformLogger.Level.FINE)) {
613 log.fine("Set background to " + c);
614 }
615 synchronized (getStateLock()) {
616 if (Objects.equals(background, c)) {
617 return;
618 }
619 background = c;
620 }
621 super.setBackground(c);
622 repaint();
623 }
624
625 @Override
626 public void setForeground(Color c) {
627 if (log.isLoggable(PlatformLogger.Level.FINE)) {
628 log.fine("Set foreground to " + c);
629 }
630 synchronized (getStateLock()) {
631 if (Objects.equals(foreground, c)) {
632 return;
633 }
634 foreground = c;
635 }
636 repaint();
637 }
638
639 /**
640 * Gets the font metrics for the specified font.
641 * @param font the font for which font metrics is to be
642 * obtained
643 * @return the font metrics for {@code font}
644 * @see #getFont
645 * @see java.awt.peer.ComponentPeer#getFontMetrics(Font)
646 * @see Toolkit#getFontMetrics(Font)
647 * @since 1.0
648 */
649 public FontMetrics getFontMetrics(Font font) {
650 if (fontLog.isLoggable(PlatformLogger.Level.FINE)) {
651 fontLog.fine("Getting font metrics for " + font);
652 }
653 return sun.font.FontDesignMetrics.getMetrics(font);
654 }
655
656 @Override
657 public void setFont(Font f) {
658 if (f == null) {
659 f = XWindow.getDefaultFont();
660 }
661 synchronized (getStateLock()) {
662 if (f.equals(font)) {
663 return;
664 }
665 font = f;
666 }
667 // as it stands currently we don't need to do layout since
668 // layout is done in the Component upon setFont.
669 //layout();
670 repaint();
671 }
672
673 public Font getFont() {
674 return font;
675 }
676
677 public void updateCursorImmediately() {
678 XGlobalCursorManager.getCursorManager().updateCursorImmediately();
679 }
680
681 public final void pSetCursor(Cursor cursor) {
682 this.pSetCursor(cursor, true);
683 }
684
685 /*
686 * The method changes the cursor.
687 * @param cursor a new cursor to change to.
688 * @param ignoreSubComponents if {@code true} is passed then
689 * the new cursor will be installed on window.
690 * if {@code false} is passed then
691 * subsequent components will try to handle
692 * this request and install their cursor.
693 */
694 //ignoreSubComponents not used here
695 public void pSetCursor(Cursor cursor, boolean ignoreSubComponents) {
696 XToolkit.awtLock();
697 try {
698 long xcursor = XGlobalCursorManager.getCursor(cursor);
699
700 XSetWindowAttributes xwa = new XSetWindowAttributes();
701 xwa.set_cursor(xcursor);
702
703 long valuemask = XConstants.CWCursor;
704
705 XlibWrapper.XChangeWindowAttributes(XToolkit.getDisplay(),getWindow(),valuemask,xwa.pData);
706 XlibWrapper.XFlush(XToolkit.getDisplay());
707 xwa.dispose();
708 } finally {
709 XToolkit.awtUnlock();
710 }
711 }
712
713 public Image createImage(int width, int height) {
714 return graphicsConfig.createAcceleratedImage(target, width, height);
715 }
716
717 public VolatileImage createVolatileImage(int width, int height) {
718 return new SunVolatileImage(target, width, height);
719 }
720
721 public Insets getInsets() {
722 return new Insets(0, 0, 0, 0);
723 }
724
725 public void beginValidate() {
726 }
727
728 public void endValidate() {
729 }
730
731 // Returns true if we are inside begin/endLayout and
732 // are waiting for native painting
733 public boolean isPaintPending() {
734 return paintPending && isLayouting;
735 }
736
737 public boolean handlesWheelScrolling() {
738 return false;
739 }
740
741 public void beginLayout() {
742 // Skip all painting till endLayout
743 isLayouting = true;
744
745 }
746
747 public void endLayout() {
748 if (!paintPending && !paintArea.isEmpty()
749 && !AWTAccessor.getComponentAccessor().getIgnoreRepaint(target))
750 {
751 // if not waiting for native painting repaint damaged area
752 postEvent(new PaintEvent(target, PaintEvent.PAINT,
753 new Rectangle()));
754 }
755 isLayouting = false;
756 }
757
758 public Color getWinBackground() {
759 return getPeerBackground();
760 }
761
762 static int[] getRGBvals(Color c) {
763
764 int[] rgbvals = new int[3];
765
766 rgbvals[0] = c.getRed();
767 rgbvals[1] = c.getGreen();
768 rgbvals[2] = c.getBlue();
769
770 return rgbvals;
771 }
772
773 static final int BACKGROUND_COLOR = 0;
774 static final int HIGHLIGHT_COLOR = 1;
775 static final int SHADOW_COLOR = 2;
776 static final int FOREGROUND_COLOR = 3;
777
778 public Color[] getGUIcolors() {
779 Color[] c = new Color[4];
780 float backb, highb, shadowb, hue, saturation;
781 c[BACKGROUND_COLOR] = getWinBackground();
782 if (c[BACKGROUND_COLOR] == null) {
783 c[BACKGROUND_COLOR] = super.getWinBackground();
784 }
785 if (c[BACKGROUND_COLOR] == null) {
786 c[BACKGROUND_COLOR] = Color.lightGray;
787 }
788
789 int[] rgb = getRGBvals(c[BACKGROUND_COLOR]);
790
791 float[] hsb = Color.RGBtoHSB(rgb[0],rgb[1],rgb[2],null);
792
793 hue = hsb[0];
794 saturation = hsb[1];
795 backb = hsb[2];
796
797
798 /* Calculate Highlight Brightness */
799
800 highb = backb + 0.2f;
801 shadowb = backb - 0.4f;
802 if ((highb > 1.0) ) {
803 if ((1.0 - backb) < 0.05) {
804 highb = shadowb + 0.25f;
805 } else {
806 highb = 1.0f;
807 }
808 } else {
809 if (shadowb < 0.0) {
810 if ((backb - 0.0) < 0.25) {
811 highb = backb + 0.75f;
812 shadowb = highb - 0.2f;
813 } else {
814 shadowb = 0.0f;
815 }
816 }
817 }
818 c[HIGHLIGHT_COLOR] = Color.getHSBColor(hue,saturation,highb);
819 c[SHADOW_COLOR] = Color.getHSBColor(hue,saturation,shadowb);
820
821
822 /*
823 c[SHADOW_COLOR] = c[BACKGROUND_COLOR].darker();
824 int r2 = c[SHADOW_COLOR].getRed();
825 int g2 = c[SHADOW_COLOR].getGreen();
826 int b2 = c[SHADOW_COLOR].getBlue();
827 */
828
829 c[FOREGROUND_COLOR] = getPeerForeground();
830 if (c[FOREGROUND_COLOR] == null) {
831 c[FOREGROUND_COLOR] = Color.black;
832 }
833 /*
834 if ((c[BACKGROUND_COLOR].equals(c[HIGHLIGHT_COLOR]))
835 && (c[BACKGROUND_COLOR].equals(c[SHADOW_COLOR]))) {
836 c[SHADOW_COLOR] = new Color(c[BACKGROUND_COLOR].getRed() + 75,
837 c[BACKGROUND_COLOR].getGreen() + 75,
838 c[BACKGROUND_COLOR].getBlue() + 75);
839 c[HIGHLIGHT_COLOR] = c[SHADOW_COLOR].brighter();
840 } else if (c[BACKGROUND_COLOR].equals(c[HIGHLIGHT_COLOR])) {
841 c[HIGHLIGHT_COLOR] = c[SHADOW_COLOR];
842 c[SHADOW_COLOR] = c[SHADOW_COLOR].darker();
843 }
844 */
845 if (! isEnabled()) {
846 c[BACKGROUND_COLOR] = c[BACKGROUND_COLOR].darker();
847 // Reduce the contrast
848 // Calculate the NTSC gray (NB: REC709 L* might be better!)
849 // for foreground and background; then multiply the foreground
850 // by the average lightness
851
852
853 Color tc = c[BACKGROUND_COLOR];
854 int bg = tc.getRed() * 30 + tc.getGreen() * 59 + tc.getBlue() * 11;
855
856 tc = c[FOREGROUND_COLOR];
857 int fg = tc.getRed() * 30 + tc.getGreen() * 59 + tc.getBlue() * 11;
858
859 float ave = (float) ((fg + bg) / 51000.0);
860 // 255 * 100 * 2
861
862 Color newForeground = new Color((int) (tc.getRed() * ave),
863 (int) (tc.getGreen() * ave),
864 (int) (tc.getBlue() * ave));
865
866 if (newForeground.equals(c[FOREGROUND_COLOR])) {
867 // This probably means the foreground color is black or white
868 newForeground = new Color(ave, ave, ave);
869 }
870 c[FOREGROUND_COLOR] = newForeground;
871
872 }
873
874
875 return c;
876 }
877
878 /**
879 * Returns an array of Colors similar to getGUIcolors(), but using the
880 * System colors. This is useful if pieces of a Component (such as
881 * the integrated scrollbars of a List) should retain the System color
882 * instead of the background color set by Component.setBackground().
883 */
884 static Color[] getSystemColors() {
885 if (systemColors == null) {
886 systemColors = new Color[4];
887 systemColors[BACKGROUND_COLOR] = SystemColor.window;
888 systemColors[HIGHLIGHT_COLOR] = SystemColor.controlLtHighlight;
889 systemColors[SHADOW_COLOR] = SystemColor.controlShadow;
890 systemColors[FOREGROUND_COLOR] = SystemColor.windowText;
891 }
892 return systemColors;
893 }
894
895 /**
896 * Draw a 3D oval.
897 */
898 public void draw3DOval(Graphics g, Color[] colors,
899 int x, int y, int w, int h, boolean raised)
900 {
901 Color c = g.getColor();
902 g.setColor(raised ? colors[HIGHLIGHT_COLOR] : colors[SHADOW_COLOR]);
903 g.drawArc(x, y, w, h, 45, 180);
904 g.setColor(raised ? colors[SHADOW_COLOR] : colors[HIGHLIGHT_COLOR]);
905 g.drawArc(x, y, w, h, 225, 180);
906 g.setColor(c);
907 }
908
909 public void draw3DRect(Graphics g, Color[] colors,
910 int x, int y, int width, int height, boolean raised)
911 {
912 Color c = g.getColor();
913 g.setColor(raised ? colors[HIGHLIGHT_COLOR] : colors[SHADOW_COLOR]);
914 g.drawLine(x, y, x, y + height);
915 g.drawLine(x + 1, y, x + width - 1, y);
916 g.setColor(raised ? colors[SHADOW_COLOR] : colors[HIGHLIGHT_COLOR]);
917 g.drawLine(x + 1, y + height, x + width, y + height);
918 g.drawLine(x + width, y, x + width, y + height - 1);
919 g.setColor(c);
920 }
921
922 /*
923 * drawXXX() methods are used to print the native components by
924 * rendering the Motif look ourselves.
925 * ToDo(aim): needs to query native motif for more accurate color
926 * information.
927 */
928 void draw3DOval(Graphics g, Color bg,
929 int x, int y, int w, int h, boolean raised)
930 {
931 Color c = g.getColor();
932 Color shadow = bg.darker();
933 Color highlight = bg.brighter();
934
935 g.setColor(raised ? highlight : shadow);
936 g.drawArc(x, y, w, h, 45, 180);
937 g.setColor(raised ? shadow : highlight);
938 g.drawArc(x, y, w, h, 225, 180);
939 g.setColor(c);
940 }
941
942 void draw3DRect(Graphics g, Color bg,
943 int x, int y, int width, int height,
944 boolean raised) {
945 Color c = g.getColor();
946 Color shadow = bg.darker();
947 Color highlight = bg.brighter();
948
949 g.setColor(raised ? highlight : shadow);
950 g.drawLine(x, y, x, y + height);
951 g.drawLine(x + 1, y, x + width - 1, y);
952 g.setColor(raised ? shadow : highlight);
953 g.drawLine(x + 1, y + height, x + width, y + height);
954 g.drawLine(x + width, y, x + width, y + height - 1);
955 g.setColor(c);
956 }
957
958 void drawScrollbar(Graphics g, Color bg, int thickness, int length,
959 int min, int max, int val, int vis, boolean horizontal) {
960 Color c = g.getColor();
961 double f = (double)(length - 2*(thickness-1)) / Math.max(1, ((max - min) + vis));
962 int v1 = thickness + (int)(f * (val - min));
963 int v2 = (int)(f * vis);
964 int w2 = thickness-4;
965 int[] tpts_x = new int[3];
966 int[] tpts_y = new int[3];
967
968 if (length < 3*w2 ) {
969 v1 = v2 = 0;
970 if (length < 2*w2 + 2) {
971 w2 = (length-2)/2;
972 }
973 } else if (v2 < 7) {
974 // enforce a minimum handle size
975 v1 = Math.max(0, v1 - ((7 - v2)>>1));
976 v2 = 7;
977 }
978
979 int ctr = thickness/2;
980 int sbmin = ctr - w2/2;
981 int sbmax = ctr + w2/2;
982
983 // paint the background slightly darker
984 {
985 Color d = new Color((int) (bg.getRed() * 0.85),
986 (int) (bg.getGreen() * 0.85),
987 (int) (bg.getBlue() * 0.85));
988
989 g.setColor(d);
990 if (horizontal) {
991 g.fillRect(0, 0, length, thickness);
992 } else {
993 g.fillRect(0, 0, thickness, length);
994 }
995 }
996
997 // paint the thumb and arrows in the normal background color
998 g.setColor(bg);
999 if (v1 > 0) {
1000 if (horizontal) {
1001 g.fillRect(v1, 3, v2, thickness-3);
1002 } else {
1003 g.fillRect(3, v1, thickness-3, v2);
1004 }
1005 }
1006
1007 tpts_x[0] = ctr; tpts_y[0] = 2;
1008 tpts_x[1] = sbmin; tpts_y[1] = w2;
1009 tpts_x[2] = sbmax; tpts_y[2] = w2;
1010 if (horizontal) {
1011 g.fillPolygon(tpts_y, tpts_x, 3);
1012 } else {
1013 g.fillPolygon(tpts_x, tpts_y, 3);
1014 }
1015
1016 tpts_y[0] = length-2;
1017 tpts_y[1] = length-w2;
1018 tpts_y[2] = length-w2;
1019 if (horizontal) {
1020 g.fillPolygon(tpts_y, tpts_x, 3);
1021 } else {
1022 g.fillPolygon(tpts_x, tpts_y, 3);
1023 }
1024
1025 Color highlight = bg.brighter();
1026
1027 // // // // draw the "highlighted" edges
1028 g.setColor(highlight);
1029
1030 // outline & arrows
1031 if (horizontal) {
1032 g.drawLine(1, thickness, length - 1, thickness);
1033 g.drawLine(length - 1, 1, length - 1, thickness);
1034
1035 // arrows
1036 g.drawLine(1, ctr, w2, sbmin);
1037 g.drawLine(length - w2, sbmin, length - w2, sbmax);
1038 g.drawLine(length - w2, sbmin, length - 2, ctr);
1039
1040 } else {
1041 g.drawLine(thickness, 1, thickness, length - 1);
1042 g.drawLine(1, length - 1, thickness, length - 1);
1043
1044 // arrows
1045 g.drawLine(ctr, 1, sbmin, w2);
1046 g.drawLine(sbmin, length - w2, sbmax, length - w2);
1047 g.drawLine(sbmin, length - w2, ctr, length - 2);
1048 }
1049
1050 // thumb
1051 if (v1 > 0) {
1052 if (horizontal) {
1053 g.drawLine(v1, 2, v1 + v2, 2);
1054 g.drawLine(v1, 2, v1, thickness-3);
1055 } else {
1056 g.drawLine(2, v1, 2, v1 + v2);
1057 g.drawLine(2, v1, thickness-3, v1);
1058 }
1059 }
1060
1061 Color shadow = bg.darker();
1062
1063 // // // // draw the "shadowed" edges
1064 g.setColor(shadow);
1065
1066 // outline && arrows
1067 if (horizontal) {
1068 g.drawLine(0, 0, 0, thickness);
1069 g.drawLine(0, 0, length - 1, 0);
1070
1071 // arrows
1072 g.drawLine(w2, sbmin, w2, sbmax);
1073 g.drawLine(w2, sbmax, 1, ctr);
1074 g.drawLine(length-2, ctr, length-w2, sbmax);
1075
1076 } else {
1077 g.drawLine(0, 0, thickness, 0);
1078 g.drawLine(0, 0, 0, length - 1);
1079
1080 // arrows
1081 g.drawLine(sbmin, w2, sbmax, w2);
1082 g.drawLine(sbmax, w2, ctr, 1);
1083 g.drawLine(ctr, length-2, sbmax, length-w2);
1084 }
1085
1086 // thumb
1087 if (v1 > 0) {
1088 if (horizontal) {
1089 g.drawLine(v1 + v2, 2, v1 + v2, thickness-2);
1090 g.drawLine(v1, thickness-2, v1 + v2, thickness-2);
1091 } else {
1092 g.drawLine(2, v1 + v2, thickness-2, v1 + v2);
1093 g.drawLine(thickness-2, v1, thickness-2, v1 + v2);
1094 }
1095 }
1096 g.setColor(c);
1097 }
1098
1099 /**
1100 * The following multibuffering-related methods delegate to our
1101 * associated GraphicsConfig (X11 or GLX) to handle the appropriate
1102 * native windowing system specific actions.
1103 */
1104
1105 private BufferCapabilities backBufferCaps;
1106
1107 public void createBuffers(int numBuffers, BufferCapabilities caps)
1108 throws AWTException
1109 {
1110 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1111 buffersLog.fine("createBuffers(" + numBuffers + ", " + caps + ")");
1112 }
1113 // set the caps first, they're used when creating the bb
1114 backBufferCaps = caps;
1115 backBuffer = graphicsConfig.createBackBuffer(this, numBuffers, caps);
1116 xBackBuffer = graphicsConfig.createBackBufferImage(target,
1117 backBuffer);
1118 }
1119
1120 @Override
1121 public BufferCapabilities getBackBufferCaps() {
1122 return backBufferCaps;
1123 }
1124
1125 public void flip(int x1, int y1, int x2, int y2,
1126 BufferCapabilities.FlipContents flipAction)
1127 {
1128 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1129 buffersLog.fine("flip(" + flipAction + ")");
1130 }
1131 if (backBuffer == 0) {
1132 throw new IllegalStateException("Buffers have not been created");
1133 }
1134 graphicsConfig.flip(this, target, xBackBuffer,
1135 x1, y1, x2, y2, flipAction);
1136 }
1137
1138 public Image getBackBuffer() {
1139 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1140 buffersLog.fine("getBackBuffer()");
1141 }
1142 if (backBuffer == 0) {
1143 throw new IllegalStateException("Buffers have not been created");
1144 }
1145 return xBackBuffer;
1146 }
1147
1148 public void destroyBuffers() {
1149 if (buffersLog.isLoggable(PlatformLogger.Level.FINE)) {
1150 buffersLog.fine("destroyBuffers()");
1151 }
1152 graphicsConfig.destroyBackBuffer(backBuffer);
1153 backBuffer = 0;
1154 xBackBuffer = null;
1155 }
1156
1157 // End of multi-buffering
1158
1159 public void notifyTextComponentChange(boolean add){
1160 Container parent = AWTAccessor.getComponentAccessor().getParent(target);
1161 while(!(parent == null ||
1162 parent instanceof java.awt.Frame ||
1163 parent instanceof java.awt.Dialog)) {
1164 parent = AWTAccessor.getComponentAccessor().getParent(parent);
1165 }
1166
1167 /* FIX ME - FIX ME need to implement InputMethods
1168 if (parent instanceof java.awt.Frame ||
1169 parent instanceof java.awt.Dialog) {
1170 if (add)
1171 ((MInputMethodControl)parent.getPeer()).addTextComponent((MComponentPeer)this);
1172 else
1173 ((MInputMethodControl)parent.getPeer()).removeTextComponent((MComponentPeer)this);
1174 }
1175 */
1176 }
1177
1178 /**
1179 * Returns true if this event is disabled and shouldn't be processed by window
1180 * Currently if target component is disabled the following event will be disabled on window:
1181 * ButtonPress, ButtonRelease, KeyPress, KeyRelease, EnterNotify, LeaveNotify, MotionNotify
1182 */
1183 protected boolean isEventDisabled(XEvent e) {
1184 if (enableLog.isLoggable(PlatformLogger.Level.FINEST)) {
1185 enableLog.finest("Component is {1}, checking for disabled event {0}", e, (isEnabled()?"enabled":"disable"));
1186 }
1187 if (!isEnabled()) {
1188 switch (e.get_type()) {
1189 case XConstants.ButtonPress:
1190 case XConstants.ButtonRelease:
1191 case XConstants.KeyPress:
1192 case XConstants.KeyRelease:
1193 case XConstants.EnterNotify:
1194 case XConstants.LeaveNotify:
1195 case XConstants.MotionNotify:
1196 if (enableLog.isLoggable(PlatformLogger.Level.FINER)) {
1197 enableLog.finer("Event {0} is disable", e);
1198 }
1199 return true;
1200 }
1201 }
1202 switch(e.get_type()) {
1203 case XConstants.MapNotify:
1204 case XConstants.UnmapNotify:
1205 return true;
1206 }
1207 return super.isEventDisabled(e);
1208 }
1209
1210 Color getPeerBackground() {
1211 return background;
1212 }
1213
1214 Color getPeerForeground() {
1215 return foreground;
1216 }
1217
1218 Font getPeerFont() {
1219 return font;
1220 }
1221
1222 Dimension getPeerSize() {
1223 return new Dimension(width,height);
1224 }
1225
1226 public void setBoundsOperation(int operation) {
1227 synchronized(getStateLock()) {
1228 if (boundsOperation == DEFAULT_OPERATION) {
1229 boundsOperation = operation;
1230 } else if (operation == RESET_OPERATION) {
1231 boundsOperation = DEFAULT_OPERATION;
1232 }
1233 }
1234 }
1235
1236 static String operationToString(int operation) {
1237 switch (operation) {
1238 case SET_LOCATION:
1239 return "SET_LOCATION";
1240 case SET_SIZE:
1241 return "SET_SIZE";
1242 case SET_CLIENT_SIZE:
1243 return "SET_CLIENT_SIZE";
1244 default:
1245 case SET_BOUNDS:
1246 return "SET_BOUNDS";
1247 }
1248 }
1249
1250 /**
1251 * Lowers this component at the bottom of the above HW peer. If the above parameter
1252 * is null then the method places this component at the top of the Z-order.
1253 */
1254 public void setZOrder(ComponentPeer above) {
1255 long aboveWindow = (above != null) ? ((XComponentPeer)above).getWindow() : 0;
1256
1257 XToolkit.awtLock();
1258 try{
1259 XlibWrapper.SetZOrder(XToolkit.getDisplay(), getWindow(), aboveWindow);
1260 }finally{
1261 XToolkit.awtUnlock();
1262 }
1263 }
1264
1265 private void addTree(Collection<Long> order, Set<Long> set, Container cont) {
1266 for (int i = 0; i < cont.getComponentCount(); i++) {
1267 Component comp = cont.getComponent(i);
1268 Object peer = AWTAccessor.getComponentAccessor().getPeer(comp);
1269 if (peer instanceof XComponentPeer) {
1270 Long window = Long.valueOf(((XComponentPeer)peer).getWindow());
1271 if (!set.contains(window)) {
1272 set.add(window);
1273 order.add(window);
1274 }
1275 } else if (comp instanceof Container) {
1276 // It is lightweight container, it might contain heavyweight components attached to this
1277 // peer
1278 addTree(order, set, (Container)comp);
1279 }
1280 }
1281 }
1282
1283 /****** DropTargetPeer implementation ********************/
1284
1285 public void addDropTarget(DropTarget dt) {
1286 Component comp = target;
1287 while(!(comp == null || comp instanceof Window)) {
1288 comp = comp.getParent();
1289 }
1290
1291 if (comp instanceof Window) {
1292 XWindowPeer wpeer = AWTAccessor.getComponentAccessor().getPeer(comp);
1293 if (wpeer != null) {
1294 wpeer.addDropTarget();
1295 }
1296 }
1297 }
1298
1299 public void removeDropTarget(DropTarget dt) {
1300 Component comp = target;
1301 while(!(comp == null || comp instanceof Window)) {
1302 comp = comp.getParent();
1303 }
1304
1305 if (comp instanceof Window) {
1306 XWindowPeer wpeer = AWTAccessor.getComponentAccessor()
1307 .getPeer(comp);
1308 if (wpeer != null) {
1309 wpeer.removeDropTarget();
1310 }
1311 }
1312 }
1313
1314 /**
1315 * Applies the shape to the X-window.
1316 * @since 1.7
1317 */
1318 public void applyShape(Region shape) {
1319 if (XlibUtil.isShapingSupported()) {
1320 if (shapeLog.isLoggable(PlatformLogger.Level.FINER)) {
1321 shapeLog.finer(
1322 "*** INFO: Setting shape: PEER: " + this
1323 + "; WINDOW: " + getWindow()
1324 + "; TARGET: " + target
1325 + "; SHAPE: " + shape);
1326 }
1327 XToolkit.awtLock();
1328 try {
1329 if (shape != null) {
1330
1331 int scale = getScale();
1332 if (scale != 1) {
1333 shape = shape.getScaledRegion(scale, scale);
1334 }
1335
1336 XlibWrapper.SetRectangularShape(
1337 XToolkit.getDisplay(),
1338 getWindow(),
1339 shape.getLoX(), shape.getLoY(),
1340 shape.getHiX(), shape.getHiY(),
1341 (shape.isRectangular() ? null : shape)
1342 );
1343 } else {
1344 XlibWrapper.SetRectangularShape(
1345 XToolkit.getDisplay(),
1346 getWindow(),
1347 0, 0,
1348 0, 0,
1349 null
1350 );
1351 }
1352 } finally {
1353 XToolkit.awtUnlock();
1354 }
1355 } else {
1356 if (shapeLog.isLoggable(PlatformLogger.Level.FINER)) {
1357 shapeLog.finer("*** WARNING: Shaping is NOT supported!");
1358 }
1359 }
1360 }
1361
1362 public boolean updateGraphicsData(GraphicsConfiguration gc) {
1363 int oldVisual = -1, newVisual = -1;
1364
1365 if (graphicsConfig != null) {
1366 oldVisual = graphicsConfig.getVisual();
1367 }
1368 if (gc != null && gc instanceof X11GraphicsConfig) {
1369 newVisual = ((X11GraphicsConfig)gc).getVisual();
1370 }
1371
1372 // If the new visual differs from the old one, the peer must be
1373 // recreated because X11 does not allow changing the visual on the fly.
1374 // So we even skip the initGraphicsConfiguration() call.
1375 // The initial assignment should happen though, hence the != -1 thing.
1376 if (oldVisual != -1 && oldVisual != newVisual) {
1377 return true;
1378 }
1379
1380 initGraphicsConfiguration();
1381 doValidateSurface();
1382 return false;
1383 }
1384 }