1 /*
2 * Copyright (c) 2010, 2017, 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 com.sun.javafx.tk;
27
28 import javafx.application.ConditionalFeature;
29 import javafx.beans.property.ReadOnlyObjectProperty;
30 import javafx.geometry.Dimension2D;
31 import javafx.scene.Scene;
32 import javafx.scene.effect.BlurType;
33 import javafx.scene.image.Image;
34 import javafx.scene.image.PixelFormat;
35 import javafx.scene.image.WritableImage;
36 import javafx.scene.input.Dragboard;
37 import javafx.scene.input.InputMethodRequests;
38 import javafx.scene.input.KeyCode;
39 import javafx.scene.input.KeyEvent;
40 import javafx.scene.input.TransferMode;
41 import javafx.scene.paint.Color;
42 import javafx.scene.paint.ImagePattern;
43 import javafx.scene.paint.LinearGradient;
44 import javafx.scene.paint.Paint;
45 import javafx.scene.paint.RadialGradient;
46 import javafx.scene.paint.Stop;
47 import javafx.scene.shape.PathElement;
48 import javafx.scene.shape.SVGPath;
49 import javafx.scene.shape.StrokeLineCap;
50 import javafx.scene.shape.StrokeLineJoin;
51 import javafx.scene.shape.StrokeType;
52 import javafx.stage.FileChooser.ExtensionFilter;
53 import javafx.stage.Modality;
54 import javafx.stage.Stage;
55 import javafx.stage.StageStyle;
56 import javafx.stage.Window;
57 import java.io.File;
58 import java.io.IOException;
59 import java.io.InputStream;
60 import java.nio.ByteBuffer;
61 import java.security.AccessControlContext;
62 import java.security.AccessController;
63 import java.security.PrivilegedAction;
64 import java.util.ArrayList;
65 import java.util.HashSet;
66 import java.util.Iterator;
67 import java.util.List;
68 import java.util.Map;
69 import java.util.Set;
70 import java.util.WeakHashMap;
71 import java.util.concurrent.CountDownLatch;
72 import java.util.concurrent.Future;
73 import com.sun.glass.ui.CommonDialogs.FileChooserResult;
74 import com.sun.glass.utils.NativeLibLoader;
75 import com.sun.javafx.PlatformUtil;
76 import com.sun.javafx.beans.event.AbstractNotifyListener;
77 import com.sun.javafx.embed.HostInterface;
78 import com.sun.javafx.geom.Path2D;
79 import com.sun.javafx.geom.transform.BaseTransform;
80 import com.sun.javafx.perf.PerformanceTracker;
81 import com.sun.javafx.runtime.VersionInfo;
82 import com.sun.javafx.runtime.async.AsyncOperation;
83 import com.sun.javafx.runtime.async.AsyncOperationListener;
84 import com.sun.javafx.scene.SceneHelper;
85 import com.sun.javafx.scene.text.TextLayoutFactory;
86 import com.sun.javafx.sg.prism.NGCamera;
87 import com.sun.javafx.sg.prism.NGLightBase;
88 import com.sun.javafx.sg.prism.NGNode;
89 import com.sun.javafx.util.Utils;
90 import com.sun.scenario.DelayedRunnable;
91 import com.sun.scenario.animation.AbstractMasterTimer;
92 import com.sun.scenario.effect.AbstractShadow.ShadowMode;
93 import com.sun.scenario.effect.Color4f;
94 import com.sun.scenario.effect.FilterContext;
95 import com.sun.scenario.effect.Filterable;
96
97
98 public abstract class Toolkit {
99 private static String tk;
100 private static Toolkit TOOLKIT;
101 private static Thread fxUserThread = null;
102
103 private static final String QUANTUM_TOOLKIT = "com.sun.javafx.tk.quantum.QuantumToolkit";
104 private static final String DEFAULT_TOOLKIT = QUANTUM_TOOLKIT;
105
106 private static final Map gradientMap = new WeakHashMap();
107
108 private static final boolean verbose = AccessController.doPrivileged((PrivilegedAction<Boolean>) () -> Boolean.getBoolean("javafx.verbose"));
109
110 private static final String[] msLibNames = {
111 "api-ms-win-core-console-l1-1-0",
112 "api-ms-win-core-datetime-l1-1-0",
113 "api-ms-win-core-debug-l1-1-0",
114 "api-ms-win-core-errorhandling-l1-1-0",
115 "api-ms-win-core-file-l1-1-0",
116 "api-ms-win-core-file-l1-2-0",
117 "api-ms-win-core-file-l2-1-0",
118 "api-ms-win-core-handle-l1-1-0",
119 "api-ms-win-core-heap-l1-1-0",
120 "api-ms-win-core-interlocked-l1-1-0",
121 "api-ms-win-core-libraryloader-l1-1-0",
122 "api-ms-win-core-localization-l1-2-0",
123 "api-ms-win-core-memory-l1-1-0",
124 "api-ms-win-core-namedpipe-l1-1-0",
125 "api-ms-win-core-processenvironment-l1-1-0",
126 "api-ms-win-core-processthreads-l1-1-0",
127 "api-ms-win-core-processthreads-l1-1-1",
128 "api-ms-win-core-profile-l1-1-0",
129 "api-ms-win-core-rtlsupport-l1-1-0",
130 "api-ms-win-core-string-l1-1-0",
131 "api-ms-win-core-synch-l1-1-0",
132 "api-ms-win-core-synch-l1-2-0",
133 "api-ms-win-core-sysinfo-l1-1-0",
134 "api-ms-win-core-timezone-l1-1-0",
135 "api-ms-win-core-util-l1-1-0",
136 "api-ms-win-crt-conio-l1-1-0",
137 "api-ms-win-crt-convert-l1-1-0",
138 "api-ms-win-crt-environment-l1-1-0",
139 "api-ms-win-crt-filesystem-l1-1-0",
140 "api-ms-win-crt-heap-l1-1-0",
141 "api-ms-win-crt-locale-l1-1-0",
142 "api-ms-win-crt-math-l1-1-0",
143 "api-ms-win-crt-multibyte-l1-1-0",
144 "api-ms-win-crt-private-l1-1-0",
145 "api-ms-win-crt-process-l1-1-0",
146 "api-ms-win-crt-runtime-l1-1-0",
147 "api-ms-win-crt-stdio-l1-1-0",
148 "api-ms-win-crt-string-l1-1-0",
149 "api-ms-win-crt-time-l1-1-0",
150 "api-ms-win-crt-utility-l1-1-0",
151 "ucrtbase",
152
153 // Finally load VS 2017 DLLs in the following order
154 "vcruntime140",
155 "msvcp140",
156 "concrt140"
157 };
158
159 private static String lookupToolkitClass(String name) {
160 if ("prism".equalsIgnoreCase(name)) {
161 return QUANTUM_TOOLKIT;
162 } else if ("quantum".equalsIgnoreCase(name)) {
163 return QUANTUM_TOOLKIT;
164 }
165 return name;
166 }
167
168 public static synchronized void loadMSWindowsLibraries() {
169 for (String libName : msLibNames) {
170 try {
171 NativeLibLoader.loadLibrary(libName);
172 } catch (Throwable t) {
173 if (verbose) {
174 System.err.println("Error: failed to load "
175 + libName + ".dll : " + t);
176 }
177 }
178 }
179 }
180
181 private static String getDefaultToolkit() {
182 if (PlatformUtil.isWindows()) {
183 return DEFAULT_TOOLKIT;
184 } else if (PlatformUtil.isMac()) {
185 return DEFAULT_TOOLKIT;
186 } else if (PlatformUtil.isLinux()) {
187 return DEFAULT_TOOLKIT;
188 } else if (PlatformUtil.isIOS()) {
189 return DEFAULT_TOOLKIT;
190 } else if (PlatformUtil.isAndroid()) {
191 return DEFAULT_TOOLKIT;
192 }
193
194 throw new UnsupportedOperationException(System.getProperty("os.name") + " is not supported");
195 }
196
197 public static synchronized Toolkit getToolkit() {
198 if (TOOLKIT != null) {
199 return TOOLKIT;
200 }
201
202 // This loading of msvcp140.dll and vcruntime140.dll (VS2017) is required on Windows platforms
203 if (PlatformUtil.isWindows()) {
204 loadMSWindowsLibraries();
205 }
206
207 AccessController.doPrivileged((PrivilegedAction<Object>) () -> {
208 // Get the javafx.version and javafx.runtime.version from a preconstructed
209 // java class, VersionInfo, created at build time.
210 VersionInfo.setupSystemProperties();
211 return null;
212 });
213
214 boolean userSpecifiedToolkit = true;
215
216 // Check a system property to see if there is a specific toolkit to use.
217 // This is not a doPriviledged check so that applets cannot use this.
218 String forcedToolkit = null;
219 try {
220 forcedToolkit = System.getProperty("javafx.toolkit");
221 } catch (SecurityException ex) {}
222
223 if (forcedToolkit == null) {
224 forcedToolkit = tk;
225 }
226 if (forcedToolkit == null) {
227 userSpecifiedToolkit = false;
228 forcedToolkit = getDefaultToolkit();
229 }
230
231 if (forcedToolkit.indexOf('.') == -1) {
232 // Turn a short name into a fully qualified classname
233 forcedToolkit = lookupToolkitClass(forcedToolkit);
234 }
235
236 boolean printToolkit = verbose
237 || (userSpecifiedToolkit && !forcedToolkit.endsWith("StubToolkit"));
238
239 try {
240 Class clz = null;
241
242 try {
243 // try our priveledged loader first
244 final ClassLoader loader = Toolkit.class.getClassLoader();
245 clz = Class.forName(forcedToolkit, false, loader);
246 } catch (ClassNotFoundException e) {
247 // fall back and try the application class loader
248 final ClassLoader loader = Thread.currentThread().getContextClassLoader();
249 clz = Class.forName(forcedToolkit, false, loader);
250 }
251
252 // Check that clz is a subclass of Toolkit
253 if (!Toolkit.class.isAssignableFrom(clz)) {
254 throw new IllegalArgumentException("Unrecognized FX Toolkit class: "
255 + forcedToolkit);
256 }
257
258 TOOLKIT = (Toolkit)clz.newInstance();
259 if (TOOLKIT.init()) {
260 if (printToolkit) {
261 System.err.println("JavaFX: using " + forcedToolkit);
262 }
263 return TOOLKIT;
264 }
265 TOOLKIT = null;
266 } catch (Exception any) {
267 TOOLKIT = null;
268 any.printStackTrace();
269 }
270
271 throw new RuntimeException("No toolkit found");
272 }
273
274 protected static Thread getFxUserThread() {
275 return fxUserThread;
276 }
277
278 protected static void setFxUserThread(Thread t) {
279 if (fxUserThread != null) {
280 throw new IllegalStateException("Error: FX User Thread already initialized");
281 }
282
283 fxUserThread = t;
284 }
285
286 public void checkFxUserThread() {
287 // Throw exception if not on FX user thread
288 if (!isFxUserThread()) {
289 throw new IllegalStateException("Not on FX application thread; currentThread = "
290 + Thread.currentThread().getName());
291 }
292 }
293
294 // Toolkit can override this if needed
295 public boolean isFxUserThread() {
296 return Thread.currentThread() == fxUserThread;
297 }
298
299 protected Toolkit() {
300 }
301
302 public abstract boolean init();
303
304 /**
305 * Indicates whether or not a nested event loop can be started
306 * from the current thread in the current state. Note that a nested
307 * event loop is not allowed outside of an event handler.
308 *
309 * @return flag indicating whether a nested event loop can be started.
310 */
311 public abstract boolean canStartNestedEventLoop();
312
313 /**
314 * Enter a nested event loop and block until the corresponding
315 * exitNestedEventLoop call is made.
316 * The key passed into this method is used to
317 * uniquely identify the matched enter/exit pair. This method creates a
318 * new nested event loop and blocks until the corresponding
319 * exitNestedEventLoop method is called with the same key.
320 * The return value of this method will be the {@code rval}
321 * object supplied to the exitNestedEventLoop method call that unblocks it.
322 *
323 * @param key the Object that identifies the nested event loop, which
324 * must not be null
325 *
326 * @throws IllegalArgumentException if the specified key is associated
327 * with a nested event loop that has not yet returned
328 *
329 * @throws NullPointerException if the key is null
330 *
331 * @throws IllegalStateException if this method is called on a thread
332 * other than the FX Application thread
333 *
334 * @return the value passed into the corresponding call to exitEventLoop
335 */
336 public abstract Object enterNestedEventLoop(Object key);
337
338 /**
339 * Exit a nested event loop and unblock the caller of the
340 * corresponding enterNestedEventLoop.
341 * The key passed into this method is used to
342 * uniquely identify the matched enter/exit pair. This method causes the
343 * nested event loop that was previously created with the key to exit and
344 * return control to the caller. If the specified nested event loop is not
345 * the inner-most loop then it will not return until all other inner loops
346 * also exit.
347 *
348 * @param key the Object that identifies the nested event loop, which
349 * must not be null
350 *
351 * @param rval an Object that is returned to the caller of the
352 * corresponding enterNestedEventLoop. This may be null.
353 *
354 * @throws IllegalArgumentException if the specified key is not associated
355 * with an active nested event loop
356 *
357 * @throws NullPointerException if the key is null
358 *
359 * @throws IllegalStateException if this method is called on a thread
360 * other than the FX Application thread
361 */
362 public abstract void exitNestedEventLoop(Object key, Object rval);
363
364 public abstract boolean isNestedLoopRunning();
365
366 public abstract TKStage createTKStage(Window peerWindow, boolean securityDialog, StageStyle stageStyle, boolean primary, Modality modality, TKStage owner, boolean rtl, AccessControlContext acc);
367
368 public abstract TKStage createTKPopupStage(Window peerWindow, StageStyle popupStyle, TKStage owner, AccessControlContext acc);
369 public abstract TKStage createTKEmbeddedStage(HostInterface host, AccessControlContext acc);
370
371 /**
372 * Creates an AppletWindow using the provided window pointer as the parent
373 * window.
374 *
375 * @param parent the native parent which will contain the primary stage
376 * window(s). Used on Windows/Linux platforms.
377 *
378 * @param serverName the name of CARemoteLayerServer which
379 * will be used to register native layer. Used on Mac platform.
380 */
381 public abstract AppletWindow createAppletWindow(long parent, String serverName);
382
383 /**
384 * Perform cleanup in preparation for applet termination, including closing
385 * the applet window.
386 */
387 public abstract void closeAppletWindow();
388
389 private final Map<TKPulseListener,AccessControlContext> stagePulseListeners =
390 new WeakHashMap<TKPulseListener,AccessControlContext>();
391 private final Map<TKPulseListener,AccessControlContext> scenePulseListeners =
392 new WeakHashMap<TKPulseListener,AccessControlContext>();
393 private final Map<TKPulseListener,AccessControlContext> postScenePulseListeners =
394 new WeakHashMap<TKPulseListener,AccessControlContext>();
395 private final Map<TKListener,AccessControlContext> toolkitListeners =
396 new WeakHashMap<TKListener,AccessControlContext>();
397
398 // The set of shutdown hooks is strongly held to avoid premature GC.
399 private final Set<Runnable> shutdownHooks = new HashSet<Runnable>();
400
401 private void runPulse(final TKPulseListener listener,
402 final AccessControlContext acc) {
403
404 if (acc == null) {
405 throw new IllegalStateException("Invalid AccessControlContext");
406 }
407
408 AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
409 listener.pulse();
410 return null;
411 }, acc);
412 }
413
414 public void firePulse() {
415 // Stages need to be notified of pulses before scenes so the Stage can resized
416 // and those changes propogated to scene before it gets its pulse to update
417
418 // Copy of listener map
419 final Map<TKPulseListener,AccessControlContext> stagePulseList =
420 new WeakHashMap<TKPulseListener,AccessControlContext>();
421 final Map<TKPulseListener,AccessControlContext> scenePulseList =
422 new WeakHashMap<TKPulseListener,AccessControlContext>();
423 final Map<TKPulseListener,AccessControlContext> postScenePulseList =
424 new WeakHashMap<TKPulseListener,AccessControlContext>();
425
426 synchronized (this) {
427 stagePulseList.putAll(stagePulseListeners);
428 scenePulseList.putAll(scenePulseListeners);
429 postScenePulseList.putAll(postScenePulseListeners);
430 }
431 for (Map.Entry<TKPulseListener,AccessControlContext> entry : stagePulseList.entrySet()) {
432 runPulse(entry.getKey(), entry.getValue());
433 }
434 for (Map.Entry<TKPulseListener,AccessControlContext> entry : scenePulseList.entrySet()) {
435 runPulse(entry.getKey(), entry.getValue());
436 }
437 for (Map.Entry<TKPulseListener,AccessControlContext> entry : postScenePulseList.entrySet()) {
438 runPulse(entry.getKey(), entry.getValue());
439 }
440
441 if (lastTkPulseListener != null) {
442 runPulse(lastTkPulseListener, lastTkPulseAcc);
443 }
444 }
445 public void addStageTkPulseListener(TKPulseListener listener) {
446 if (listener == null) {
447 return;
448 }
449 synchronized (this) {
450 AccessControlContext acc = AccessController.getContext();
451 stagePulseListeners.put(listener, acc);
452 }
453 }
454 public void removeStageTkPulseListener(TKPulseListener listener) {
455 synchronized (this) {
456 stagePulseListeners.remove(listener);
457 }
458 }
459 public void addSceneTkPulseListener(TKPulseListener listener) {
460 if (listener == null) {
461 return;
462 }
463 synchronized (this) {
464 AccessControlContext acc = AccessController.getContext();
465 scenePulseListeners.put(listener, acc);
466 }
467 }
468 public void removeSceneTkPulseListener(TKPulseListener listener) {
469 synchronized (this) {
470 scenePulseListeners.remove(listener);
471 }
472 }
473 public void addPostSceneTkPulseListener(TKPulseListener listener) {
474 if (listener == null) {
475 return;
476 }
477 synchronized (this) {
478 AccessControlContext acc = AccessController.getContext();
479 postScenePulseListeners.put(listener, acc);
480 }
481 }
482 public void removePostSceneTkPulseListener(TKPulseListener listener) {
483 synchronized (this) {
484 postScenePulseListeners.remove(listener);
485 }
486 }
487
488 public void addTkListener(TKListener listener) {
489 if (listener == null) {
490 return;
491 }
492 AccessControlContext acc = AccessController.getContext();
493 toolkitListeners.put(listener, acc);
494 }
495
496 public void removeTkListener(TKListener listener) {
497 toolkitListeners.remove(listener);
498 }
499
500 private TKPulseListener lastTkPulseListener = null;
501 private AccessControlContext lastTkPulseAcc = null;
502 public void setLastTkPulseListener(TKPulseListener listener) {
503 lastTkPulseAcc = AccessController.getContext();
504 lastTkPulseListener = listener;
505 }
506
507 public void addShutdownHook(Runnable hook) {
508 if (hook == null) {
509 return;
510 }
511 synchronized (shutdownHooks) {
512 shutdownHooks.add(hook);
513 }
514 }
515
516 public void removeShutdownHook(Runnable hook) {
517 synchronized (shutdownHooks) {
518 shutdownHooks.remove(hook);
519 }
520 }
521
522 protected void notifyShutdownHooks() {
523 List<Runnable> hooks;
524 synchronized (shutdownHooks) {
525 hooks = new ArrayList<Runnable>(shutdownHooks);
526 shutdownHooks.clear();
527 }
528
529 for (Runnable hook : hooks) {
530 hook.run();
531 }
532 }
533
534 public void notifyWindowListeners(final List<TKStage> windows) {
535 for (Map.Entry<TKListener,AccessControlContext> entry : toolkitListeners.entrySet()) {
536 final TKListener listener = entry.getKey();
537 final AccessControlContext acc = entry.getValue();
538 if (acc == null) {
539 throw new IllegalStateException("Invalid AccessControlContext");
540 }
541
542 AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
543 listener.changedTopLevelWindows(windows);
544 return null;
545 }, acc);
546 }
547 }
548
549 public void notifyLastNestedLoopExited() {
550 for (TKListener listener: toolkitListeners.keySet()) {
551 listener.exitedLastNestedLoop();
552 }
553 }
554
555 // notify the pulse timer code that we need the next pulse to happen
556 // this flag is cleared each cycle so subsequent pulses must be requested
557 public abstract void requestNextPulse();
558
559 public abstract Future addRenderJob(RenderJob rj);
560
561 public abstract ImageLoader loadImage(String url,
562 double width, double height,
563 boolean preserveRatio,
564 boolean smooth);
565 public abstract ImageLoader loadImage(InputStream stream,
566 double width, double height,
567 boolean preserveRatio,
568 boolean smooth);
569 public abstract AsyncOperation loadImageAsync(
570 AsyncOperationListener<? extends ImageLoader> listener,
571 String url,
572 double width, double height,
573 boolean preserveRatio,
574 boolean smooth);
575
576 /*
577 * The loadPlatformImage method supports the following image types:
578 * - an object returned by the renderToImage method
579 * - an instance of com.sun.prism.Image (in case of prism)
580 * - an instance of an external image object, which can be a BufferedImage
581 * If JavaFX Image had one more constructor Image(ImageLoader),
582 * we could introduce a different method for external image loading support.
583 */
584
585 public abstract ImageLoader loadPlatformImage(Object platformImage);
586
587 public abstract PlatformImage createPlatformImage(int w, int h);
588
589 // Indicates the default state of smooth for ImageView and MediaView
590 // Subclasses may override this to provide a platform-specific default
591 public boolean getDefaultImageSmooth() { return true; }
592
593 public abstract void startup(Runnable runnable);
594 public abstract void defer(Runnable runnable);
595 public void exit() {
596 fxUserThread = null;
597 }
598
599 public abstract Map<Object, Object> getContextMap();
600 public abstract int getRefreshRate();
601 public abstract void setAnimationRunnable(DelayedRunnable animationRunnable);
602 public abstract PerformanceTracker getPerformanceTracker();
603 public abstract PerformanceTracker createPerformanceTracker();
604
605 //to be used for testing only
606 public abstract void waitFor(Task t);
607
608 private Object checkSingleColor(List<Stop> stops) {
609 if (stops.size() == 2) {
610 Color c = stops.get(0).getColor();
611 if (c.equals(stops.get(1).getColor())) {
612 return Toolkit.getPaintAccessor().getPlatformPaint(c);
613 }
614 }
615 return null;
616 }
617
618 private Object getPaint(LinearGradient paint) {
619 Object p = gradientMap.get(paint);
620 if (p != null) {
621 return p;
622 }
623 p = checkSingleColor(paint.getStops());
624 if (p == null) {
625 p = createLinearGradientPaint(paint);
626 }
627 gradientMap.put(paint, p);
628 return p;
629 }
630
631 private Object getPaint(RadialGradient paint) {
632 Object p = gradientMap.get(paint);
633 if (p != null) {
634 return p;
635 }
636 p = checkSingleColor(paint.getStops());
637 if (p == null) {
638 p = createRadialGradientPaint(paint);
639 }
640 gradientMap.put(paint, p);
641 return p;
642 }
643
644 public Object getPaint(Paint paint) {
645 if (paint instanceof Color) {
646 return createColorPaint((Color) paint);
647 }
648
649 if (paint instanceof LinearGradient) {
650 return getPaint((LinearGradient) paint);
651 }
652
653 if (paint instanceof RadialGradient) {
654 return getPaint((RadialGradient) paint);
655 }
656
657 if (paint instanceof ImagePattern) {
658 return createImagePatternPaint((ImagePattern) paint);
659 }
660
661 return null;
662 }
663
664 protected static final double clampStopOffset(double offset) {
665 return (offset > 1.0) ? 1.0 :
666 (offset < 0.0) ? 0.0 : offset;
667 }
668
669 protected abstract Object createColorPaint(Color paint);
670 protected abstract Object createLinearGradientPaint(LinearGradient paint);
671 protected abstract Object createRadialGradientPaint(RadialGradient paint);
672 protected abstract Object createImagePatternPaint(ImagePattern paint);
673
674 public abstract void
675 accumulateStrokeBounds(com.sun.javafx.geom.Shape shape,
676 float bbox[],
677 StrokeType type,
678 double strokewidth,
679 StrokeLineCap cap,
680 StrokeLineJoin join,
681 float miterLimit,
682 BaseTransform tx);
683
684 public abstract boolean
685 strokeContains(com.sun.javafx.geom.Shape shape,
686 double x, double y,
687 StrokeType type,
688 double strokewidth,
689 StrokeLineCap cap,
690 StrokeLineJoin join,
691 float miterLimit);
692
693 public abstract com.sun.javafx.geom.Shape
694 createStrokedShape(com.sun.javafx.geom.Shape shape,
695 StrokeType type,
696 double strokewidth,
697 StrokeLineCap cap,
698 StrokeLineJoin join,
699 float miterLimit,
700 float[] dashArray,
701 float dashOffset);
702
703 public abstract int getKeyCodeForChar(String character);
704 public abstract Dimension2D getBestCursorSize(int preferredWidth, int preferredHeight);
705 public abstract int getMaximumCursorColors();
706 public abstract PathElement[] convertShapeToFXPath(Object shape);
707
708 public abstract Filterable toFilterable(Image img);
709 public abstract FilterContext getFilterContext(Object config);
710
711 public abstract boolean isForwardTraversalKey(KeyEvent e);
712 public abstract boolean isBackwardTraversalKey(KeyEvent e);
713
714 public abstract AbstractMasterTimer getMasterTimer();
715
716 public abstract FontLoader getFontLoader();
717 public abstract TextLayoutFactory getTextLayoutFactory();
718
719 public abstract Object createSVGPathObject(SVGPath svgpath);
720 public abstract Path2D createSVGPath2D(SVGPath svgpath);
721
722 /**
723 * Tests whether the pixel on the given coordinates in the given image
724 * is non-empty (not fully transparent). Return value is not defined
725 * for pixels out of the image bounds.
726 */
727 public abstract boolean imageContains(Object image, float x, float y);
728
729 public abstract TKClipboard getSystemClipboard();
730
731 public TKClipboard createLocalClipboard() {
732 return new LocalClipboard();
733 }
734
735 public abstract TKSystemMenu getSystemMenu();
736
737 public abstract TKClipboard getNamedClipboard(String name);
738
739 public boolean isSupported(ConditionalFeature feature) { return false; }
740
741 public boolean isMSAASupported() { return false; }
742
743 public abstract ScreenConfigurationAccessor setScreenConfigurationListener(TKScreenConfigurationListener listener);
744
745 public abstract Object getPrimaryScreen();
746
747 public abstract List<?> getScreens();
748
749 public abstract ScreenConfigurationAccessor getScreenConfigurationAccessor();
750
751 public abstract void registerDragGestureListener(TKScene s, Set<TransferMode> tm, TKDragGestureListener l);
752
753 /**
754 * This function is called when a drag originates within a JavaFX application.
755 * This means that drags that originate in other applications / from the OS
756 * do not call this function.
757 * The argument o represents an object used to identify a scene on which
758 * the drag has started.
759 */
760 public abstract void startDrag(TKScene scene, Set<TransferMode> tm, TKDragSourceListener l, Dragboard dragboard);
761
762 // template function which can be implemented by toolkit impls such that they
763 // can be informed when a drag and drop operation has completed. This allows
764 // for any cleanup that may need to be done.
765 public void stopDrag(Dragboard dragboard) {
766 // no-op
767 }
768
769 public abstract void enableDrop(TKScene s, TKDropTargetListener l);
770
771 public interface Task {
772 boolean isFinished();
773 }
774
775 public Color4f toColor4f(Color color) {
776 return new Color4f((float)color.getRed(), (float)color.getGreen(), (float)color.getBlue(), (float)color.getOpacity());
777 }
778
779
780 public ShadowMode toShadowMode(BlurType blurType) {
781 switch (blurType) {
782 case ONE_PASS_BOX:
783 return ShadowMode.ONE_PASS_BOX;
784 case TWO_PASS_BOX:
785 return ShadowMode.TWO_PASS_BOX;
786 case THREE_PASS_BOX:
787 return ShadowMode.THREE_PASS_BOX;
788 default:
789 return ShadowMode.GAUSSIAN;
790 }
791 }
792
793 public abstract void installInputMethodRequests(TKScene scene, InputMethodRequests requests);
794
795 /*
796 * ImageRenderingContext holds the many parameters passed to
797 * the renderToImage method.
798 * The use of the parameters is specified by the renderToImage
799 * method.
800 * @see #renderToImage
801 */
802 public static class ImageRenderingContext {
803 // Node to be rendered
804 public NGNode root;
805
806 // Viewport for rendering
807 public int x;
808 public int y;
809 public int width;
810 public int height;
811
812 // Initial transform for root node
813 public BaseTransform transform;
814
815 // Rendering parameters either from Scene or SnapShotParams
816 public boolean depthBuffer;
817 public Object platformPaint;
818 public NGCamera camera;
819 public NGLightBase[] lights;
820
821 // PlatformImage into which to render or null
822 public Object platformImage;
823 }
824
825 /*
826 * This method renders a PG-graph to a platform image object.
827 * The returned object can be turned into a useable
828 * scene graph image using the appropriate factor of the
829 * Image class.
830 * The scale specified in the params is used to scale the
831 * entire rendering before any transforms in the nodes are
832 * applied.
833 * The width and height specified in the params represent
834 * the user space dimensions to be rendered. The returned
835 * image will be large enough to hold these dimensions
836 * scaled by the scale parameter.
837 * The depthBuffer specified in the params is used to determine
838 * with or without depthBuffer rendering should be performed.
839 * The root node is the root of a tree of toolkit-specific
840 * scene graph peer nodes to be rendered and should have
841 * been previously created by this toolkit.
842 * The platformPaint specified in the params must be
843 * generated by the appropriate Toolkit.createPaint method
844 * and is used to fill the background of the image before
845 * rendering the scene graph.
846 * The platformImage specified in the params may be non-null
847 * and should be a previous return value from this method.
848 * If it is non-null then it may be reused as the return value
849 * of this method if it is still valid and large enough to
850 * hold the requested size.
851 *
852 * @param context a ImageRenderingContext instance specifying
853 * the various rendering parameters
854 * @return a platform specific image object
855 * @see Toolkit.getImageAccessor().fromPlatformImage
856 */
857
858 public abstract Object renderToImage(ImageRenderingContext context);
859
860 /**
861 * Returns the key code for the key which is commonly used on the
862 * corresponding platform as a modifier key in shortcuts. For example
863 * it is {@code KeyCode.CONTROL} on Windows (Ctrl + C, Ctrl + V ...) and
864 * {@code KeyCode.META} on MacOS (Cmd + C, Cmd + V ...).
865 *
866 * @return the key code for shortcut modifier key
867 */
868 public KeyCode getPlatformShortcutKey() {
869 return PlatformUtil.isMac() ? KeyCode.META : KeyCode.CONTROL;
870 }
871
872 public abstract FileChooserResult showFileChooser(
873 TKStage ownerWindow,
874 String title,
875 File initialDirectory,
876 String initialFileName,
877 FileChooserType fileChooserType,
878 List<ExtensionFilter> extensionFilters,
879 ExtensionFilter selectedFilter);
880
881 public abstract File showDirectoryChooser(
882 TKStage ownerWindow,
883 String title,
884 File initialDirectory);
885
886 /*
887 * Methods for obtaining "double-click" speed value.
888 */
889 public abstract long getMultiClickTime();
890 public abstract int getMultiClickMaxX();
891 public abstract int getMultiClickMaxY();
892
893 private CountDownLatch pauseScenesLatch = null;
894
895 public interface WritableImageAccessor {
896 public void loadTkImage(WritableImage wimg, Object loader);
897 public Object getTkImageLoader(WritableImage wimg);
898 }
899
900 private static WritableImageAccessor writableImageAccessor = null;
901
902 public static void setWritableImageAccessor(WritableImageAccessor accessor) {
903 writableImageAccessor = accessor;
904 }
905
906 public static WritableImageAccessor getWritableImageAccessor() {
907 return writableImageAccessor;
908 }
909
910 public interface PaintAccessor {
911 public boolean isMutable(Paint paint);
912 public Object getPlatformPaint(Paint paint);
913 public void addListener(Paint paint, AbstractNotifyListener platformChangeListener);
914 public void removeListener(Paint paint, AbstractNotifyListener platformChangeListener);
915 }
916
917 private static PaintAccessor paintAccessor = null;
918
919 public static void setPaintAccessor(PaintAccessor accessor) {
920 paintAccessor = accessor;
921 }
922
923 public static PaintAccessor getPaintAccessor() {
924 return paintAccessor;
925 }
926
927 public interface ImageAccessor {
928 public boolean isAnimation(Image image);
929 public ReadOnlyObjectProperty<PlatformImage>getImageProperty(Image image);
930 public int[] getPreColors(PixelFormat<ByteBuffer> pf);
931 public int[] getNonPreColors(PixelFormat<ByteBuffer> pf);
932 public Object getPlatformImage(Image image);
933 public Image fromPlatformImage(Object image);
934 }
935
936 private static ImageAccessor imageAccessor;
937
938 static {
939 // Need to ensure that the Image class is loaded since Toolkit class
940 // is the provider of getImageAccessor method and sets the accessor.
941 Utils.forceInit(Image.class);
942 }
943
944 public static void setImageAccessor(ImageAccessor accessor) {
945 imageAccessor = accessor;
946 }
947
948 public static ImageAccessor getImageAccessor() {
949 return imageAccessor;
950 }
951
952 public String getThemeName() {
953 return null;
954 }
955 }