1 /*
2 * Copyright (c) 1996, 2009, 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 /*
27 * The Toolkit class has two functions: it instantiates the AWT
28 * ToolkitPeer's native methods, and provides the DLL's core functions.
29 *
30 * There are two ways this DLL can be used: either as a dynamically-
31 * loaded Java native library from the interpreter, or by a Windows-
32 * specific app. The first manner requires that the Toolkit provide
33 * all support needed so the app can function as a first-class Windows
34 * app, while the second assumes that the app will provide that
35 * functionality. Which mode this DLL functions in is determined by
36 * which initialization paradigm is used. If the Toolkit is constructed
37 * normally, then the Toolkit will have its own pump. If it is explicitly
38 * initialized for an embedded environment (via a static method on
39 * sun.awt.windows.WToolkit), then it will rely on an external message
40 * pump.
41 *
42 * The most basic functionality needed is a Windows message pump (also
43 * known as a message loop). When an Java app is started as a console
44 * app by the interpreter, the Toolkit needs to provide that message
45 * pump if the AWT is dynamically loaded.
46 */
47
48 #ifndef AWT_TOOLKIT_H
49 #define AWT_TOOLKIT_H
50
51 #include "awt.h"
52 #include "awtmsg.h"
53 #include "Trace.h"
54
55 #include "sun_awt_windows_WToolkit.h"
56
57 class AwtObject;
58 class AwtDialog;
59 class AwtDropTarget;
60
61 typedef VOID (CALLBACK* IDLEPROC)(VOID);
62 typedef BOOL (CALLBACK* PEEKMESSAGEPROC)(MSG&);
63
64 // Struct for _WInputMethod_enable|disableNativeIME method
65 struct EnableNativeIMEStruct {
66 jobject self;
67 jobject peer;
68 jint context;
69 jboolean useNativeCompWindow;
70 };
71
72 /*
73 * class JNILocalFrame
74 * Push/PopLocalFrame helper
75 */
76 class JNILocalFrame {
77 public:
78 INLINE JNILocalFrame(JNIEnv *env, int size) {
79 m_env = env;
80 int result = m_env->PushLocalFrame(size);
81 if (result < 0) {
82 DASSERT(FALSE);
83 JNU_ThrowOutOfMemoryError(m_env, "Can't allocate localRefs");
84 }
85 }
86 INLINE ~JNILocalFrame() { m_env->PopLocalFrame(NULL); }
87 private:
88 JNIEnv* m_env;
89 };
90
91 /*
92 * class CriticalSection
93 * ~~~~~ ~~~~~~~~~~~~~~~~
94 * Lightweight intra-process thread synchronization. Can only be used with
95 * other critical sections, and only within the same process.
96 */
97 class CriticalSection {
98 public:
99 INLINE CriticalSection() { ::InitializeCriticalSection(&rep); }
100 INLINE ~CriticalSection() { ::DeleteCriticalSection(&rep); }
101
102 class Lock {
103 public:
104 INLINE Lock(const CriticalSection& cs) : critSec(cs) {
105 (const_cast<CriticalSection &>(critSec)).Enter();
106 }
107 INLINE ~Lock() {
108 (const_cast<CriticalSection &>(critSec)).Leave();
109 }
110 private:
111 const CriticalSection& critSec;
112 };
113 friend Lock;
114
115 private:
116 CRITICAL_SECTION rep;
117
118 CriticalSection(const CriticalSection&);
119 const CriticalSection& operator =(const CriticalSection&);
120
121 public:
122 virtual void Enter() {
123 ::EnterCriticalSection(&rep);
124 }
125 virtual BOOL TryEnter() {
126 return ::TryEnterCriticalSection(&rep);
127 }
128 virtual void Leave() {
129 ::LeaveCriticalSection(&rep);
130 }
131 };
132
133 // Macros for using CriticalSection objects that help trace
134 // lock/unlock actions
135 #define CRITICAL_SECTION_ENTER(cs) { \
136 J2dTraceLn4(J2D_TRACE_VERBOSE2, \
137 "CS.Wait: tid, cs, file, line = 0x%x, 0x%x, %s, %d", \
138 GetCurrentThreadId(), &(cs), __FILE__, __LINE__); \
139 (cs).Enter(); \
140 J2dTraceLn4(J2D_TRACE_VERBOSE2, \
141 "CS.Enter: tid, cs, file, line = 0x%x, 0x%x, %s, %d", \
142 GetCurrentThreadId(), &(cs), __FILE__, __LINE__); \
143 }
144
145 #define CRITICAL_SECTION_LEAVE(cs) { \
146 J2dTraceLn4(J2D_TRACE_VERBOSE2, \
147 "CS.Leave: tid, cs, file, line = 0x%x, 0x%x, %s, %d", \
148 GetCurrentThreadId(), &(cs), __FILE__, __LINE__); \
149 (cs).Leave(); \
150 J2dTraceLn4(J2D_TRACE_VERBOSE2, \
151 "CS.Left: tid, cs, file, line = 0x%x, 0x%x, %s, %d", \
152 GetCurrentThreadId(), &(cs), __FILE__, __LINE__); \
153 }
154
155 /************************************************************************
156 * AwtToolkit class
157 */
158
159 class AwtToolkit {
160 public:
161 enum {
162 KB_STATE_SIZE = 256
163 };
164
165 /* java.awt.Toolkit method ids */
166 static jmethodID getDefaultToolkitMID;
167 static jmethodID getFontMetricsMID;
168 static jmethodID insetsMID;
169
170 /* sun.awt.windows.WToolkit ids */
171 static jmethodID windowsSettingChangeMID;
172 static jmethodID displayChangeMID;
173
174 BOOL m_isDynamicLayoutSet;
175
176 AwtToolkit();
177 ~AwtToolkit();
178
179 BOOL Initialize(BOOL localPump);
180 BOOL Dispose();
181
182 void SetDynamicLayout(BOOL dynamic);
183 BOOL IsDynamicLayoutSet();
184 BOOL IsDynamicLayoutSupported();
185 BOOL IsDynamicLayoutActive();
186 BOOL areExtraMouseButtonsEnabled();
187 void setExtraMouseButtonsEnabled(BOOL enable);
188 static UINT GetNumberOfButtons();
189
190 INLINE BOOL localPump() { return m_localPump; }
191 INLINE BOOL VerifyComponents() { return FALSE; } // TODO: Use new DebugHelper class to set this flag
192 INLINE HWND GetHWnd() { return m_toolkitHWnd; }
193
194 INLINE HMODULE GetModuleHandle() { return m_dllHandle; }
195 INLINE void SetModuleHandle(HMODULE h) { m_dllHandle = h; }
196
197 INLINE static DWORD MainThread() { return GetInstance().m_mainThreadId; }
198 INLINE void VerifyActive() throw (awt_toolkit_shutdown) {
199 if (!m_isActive && m_mainThreadId != ::GetCurrentThreadId()) {
200 throw awt_toolkit_shutdown();
201 }
202 }
203 INLINE BOOL IsDisposed() { return m_isDisposed; }
204 static UINT GetMouseKeyState();
205 static void GetKeyboardState(PBYTE keyboardState);
206
207 static ATOM RegisterClass();
208 static void UnregisterClass();
209 INLINE LRESULT SendMessage(UINT msg, WPARAM wParam=0, LPARAM lParam=0) {
210 if (!m_isDisposed) {
211 return ::SendMessage(GetHWnd(), msg, wParam, lParam);
212 } else {
213 return NULL;
214 }
215 }
216 static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam,
217 LPARAM lParam);
218 static LRESULT CALLBACK GetMessageFilter(int code, WPARAM wParam,
219 LPARAM lParam);
220 static LRESULT CALLBACK ForegroundIdleFilter(int code, WPARAM wParam,
221 LPARAM lParam);
222 static LRESULT CALLBACK MouseLowLevelHook(int code, WPARAM wParam,
223 LPARAM lParam);
224
225 INLINE static AwtToolkit& GetInstance() { return theInstance; }
226 INLINE void SetPeer(JNIEnv *env, jobject wToolkit) {
227 AwtToolkit &tk = AwtToolkit::GetInstance();
228 if (tk.m_peer != NULL) {
229 env->DeleteGlobalRef(tk.m_peer);
230 }
231 tk.m_peer = (wToolkit != NULL) ? env->NewGlobalRef(wToolkit) : NULL;
232 }
233
234 INLINE jobject GetPeer() {
235 return m_peer;
236 }
237
238 // is this thread the main thread?
239
240 INLINE static BOOL IsMainThread() {
241 return GetInstance().m_mainThreadId == ::GetCurrentThreadId();
242 }
243
244 // post a message to the message pump thread
245
246 INLINE BOOL PostMessage(UINT msg, WPARAM wp=0, LPARAM lp=0) {
247 return ::PostMessage(GetHWnd(), msg, wp, lp);
248 }
249
250 // cause the message pump thread to call the function synchronously now!
251
252 INLINE void * InvokeFunction(void*(*ftn)(void)) {
253 return (void *)SendMessage(WM_AWT_INVOKE_VOID_METHOD, (WPARAM)ftn, 0);
254 }
255 INLINE void InvokeFunction(void (*ftn)(void)) {
256 InvokeFunction((void*(*)(void))ftn);
257 }
258 INLINE void * InvokeFunction(void*(*ftn)(void *), void* param) {
259 return (void *)SendMessage(WM_AWT_INVOKE_METHOD, (WPARAM)ftn,
260 (LPARAM)param);
261 }
262 INLINE void InvokeFunction(void (*ftn)(void *), void* param) {
263 InvokeFunction((void*(*)(void*))ftn, param);
264 }
265
266 INLINE CriticalSection &GetSyncCS() { return m_Sync; }
267
268 void *SyncCall(void*(*ftn)(void *), void* param);
269 void SyncCall(void (*ftn)(void *), void *param);
270 void *SyncCall(void *(*ftn)(void));
271 void SyncCall(void (*ftn)(void));
272
273 // cause the message pump thread to call the function later ...
274
275 INLINE void InvokeFunctionLater(void (*ftn)(void *), void* param) {
276 if (!PostMessage(WM_AWT_INVOKE_METHOD, (WPARAM)ftn, (LPARAM)param)) {
277 JNIEnv* env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
278 JNU_ThrowInternalError(env, "Message not posted, native event queue may be full.");
279 }
280 }
281
282 // cause the message pump thread to synchronously synchronize on the handle
283
284 INLINE void WaitForSingleObject(HANDLE handle) {
285 SendMessage(WM_AWT_WAIT_FOR_SINGLE_OBJECT, 0, (LPARAM)handle);
286 }
287
288 /*
289 * Create an AwtXxxx C++ component using a given factory
290 */
291 typedef void (*ComponentFactory)(void*, void*);
292 static void CreateComponent(void* hComponent, void* hParent,
293 ComponentFactory compFactory, BOOL isParentALocalReference=TRUE);
294
295 static void DestroyComponentHWND(HWND hwnd);
296
297 // constants used to PostQuitMessage
298
299 static const int EXIT_ENCLOSING_LOOP;
300 static const int EXIT_ALL_ENCLOSING_LOOPS;
301
302 // ...
303
304 void QuitMessageLoop(int status);
305
306 UINT MessageLoop(IDLEPROC lpIdleFunc, PEEKMESSAGEPROC lpPeekMessageFunc);
307 BOOL PumpWaitingMessages(PEEKMESSAGEPROC lpPeekMessageFunc);
308 BOOL PreProcessMsg(MSG& msg);
309 BOOL PreProcessMouseMsg(class AwtComponent* p, MSG& msg);
310 BOOL PreProcessKeyMsg(class AwtComponent* p, MSG& msg);
311
312 /* Create an ID which maps to an AwtObject pointer, such as a menu. */
313 UINT CreateCmdID(AwtObject* object);
314
315 // removes cmd id mapping
316 void RemoveCmdID(UINT id);
317
318 /* Return the AwtObject associated with its ID. */
319 AwtObject* LookupCmdID(UINT id);
320
321 /* Return the current application icon. */
322 HICON GetAwtIcon();
323 HICON GetAwtIconSm();
324
325 // Calculate a wave-like value out of the integer 'value' and
326 // the specified period.
327 // The argument 'value' is an integer 0, 1, 2, ... *infinity*.
328 //
329 // Examples:
330 // Period == 3
331 // Generated sequence: 0 1 2 1 0 .....
332 //
333 // Period == 4
334 // Generated sequence: 0 1 2 3 2 1 0 .....
335 static inline UINT CalculateWave(UINT value, const UINT period) {
336 if (period < 2) {
337 return 0;
338 }
339 // -2 is necessary to avoid repeating extreme values (0 and period-1)
340 value %= period * 2 -2;
341 if (value >= period) {
342 value = period * 2 -2 - value;
343 }
344 return value;
345 }
346
347 HICON GetSecurityWarningIcon(UINT index, UINT w, UINT h);
348
349 /* Turns on/off dialog modality for the system. */
350 INLINE AwtDialog* SetModal(AwtDialog* frame) {
351 AwtDialog* previousDialog = m_pModalDialog;
352 m_pModalDialog = frame;
353 return previousDialog;
354 };
355 INLINE void ResetModal(AwtDialog* oldFrame) { m_pModalDialog = oldFrame; };
356 INLINE BOOL IsModal() { return (m_pModalDialog != NULL); };
357 INLINE AwtDialog* GetModalDialog(void) { return m_pModalDialog; };
358
359 /* Stops the current message pump (normally a modal dialog pump) */
360 INLINE void StopMessagePump() { m_breakOnError = TRUE; }
361
362 /* Debug settings */
363 INLINE void SetVerbose(long flag) { m_verbose = (flag != 0); }
364 INLINE void SetVerify(long flag) { m_verifyComponents = (flag != 0); }
365 INLINE void SetBreak(long flag) { m_breakOnError = (flag != 0); }
366 INLINE void SetHeapCheck(long flag);
367
368 static void SetBusy(BOOL busy);
369
370 /* Set and get the default input method Window handler. */
371 INLINE void SetInputMethodWindow(HWND inputMethodHWnd) { m_inputMethodHWnd = inputMethodHWnd; }
372 INLINE HWND GetInputMethodWindow() { return m_inputMethodHWnd; }
373
374 static VOID CALLBACK PrimaryIdleFunc();
375 static VOID CALLBACK SecondaryIdleFunc();
376 static BOOL CALLBACK CommonPeekMessageFunc(MSG& msg);
377 static BOOL activateKeyboardLayout(HKL hkl);
378
379 HANDLE m_waitEvent;
380 DWORD eventNumber;
381 private:
382 HWND CreateToolkitWnd(LPCTSTR name);
383
384 BOOL m_localPump;
385 DWORD m_mainThreadId;
386 HWND m_toolkitHWnd;
387 HWND m_inputMethodHWnd;
388 BOOL m_verbose;
389 BOOL m_isActive; // set to FALSE at beginning of Dispose
390 BOOL m_isDisposed; // set to TRUE at end of Dispose
391 BOOL m_areExtraMouseButtonsEnabled;
392
393 BOOL m_vmSignalled; // set to TRUE if QUERYENDSESSION has successfully
394 // raised SIGTERM
395
396 BOOL m_verifyComponents;
397 BOOL m_breakOnError;
398
399 BOOL m_breakMessageLoop;
400 UINT m_messageLoopResult;
401
402 class AwtComponent* m_lastMouseOver;
403 BOOL m_mouseDown;
404
405 HHOOK m_hGetMessageHook;
406 HHOOK m_hMouseLLHook;
407 UINT_PTR m_timer;
408
409 class AwtCmdIDList* m_cmdIDs;
410 BYTE m_lastKeyboardState[KB_STATE_SIZE];
411 CriticalSection m_lockKB;
412
413 static AwtToolkit theInstance;
414
415 /* The current modal dialog frame (normally NULL). */
416 AwtDialog* m_pModalDialog;
417
418 /* The WToolkit peer instance */
419 jobject m_peer;
420
421 HMODULE m_dllHandle; /* The module handle. */
422
423 CriticalSection m_Sync;
424
425 /* track display changes - used by palette-updating code.
426 This is a workaround for a windows bug that prevents
427 WM_PALETTECHANGED event from occurring immediately after
428 a WM_DISPLAYCHANGED event.
429 */
430 private:
431 BOOL m_displayChanged; /* Tracks displayChanged events */
432 // 0 means we are not embedded.
433 DWORD m_embedderProcessID;
434
435 public:
436 BOOL HasDisplayChanged() { return m_displayChanged; }
437 void ResetDisplayChanged() { m_displayChanged = FALSE; }
438 void RegisterEmbedderProcessId(HWND);
439 BOOL IsEmbedderProcessId(const DWORD processID) const
440 {
441 return m_embedderProcessID && (processID == m_embedderProcessID);
442 }
443
444 private:
445 static JNIEnv *m_env;
446 static DWORD m_threadId;
447 public:
448 static void SetEnv(JNIEnv *env);
449 static JNIEnv* GetEnv();
450
451 static BOOL GetScreenInsets(int screenNum, RECT * rect);
452
453 // If the DWM is active, this function uses
454 // DwmGetWindowAttribute()/DWMWA_EXTENDED_FRAME_BOUNDS.
455 // Otherwise, fall back to regular ::GetWindowRect().
456 // See 6711576 for more details.
457 static void GetWindowRect(HWND hWnd, LPRECT lpRect);
458
459 private:
460 // The window handle of a toplevel window last seen under the mouse cursor.
461 // See MouseLowLevelHook() for details.
462 HWND m_lastWindowUnderMouse;
463 public:
464 HWND GetWindowUnderMouse() { return m_lastWindowUnderMouse; }
465
466 void InstallMouseLowLevelHook();
467 void UninstallMouseLowLevelHook();
468
469
470 /* AWT preloading (early Toolkit thread start)
471 */
472 public:
473 /* Toolkit preload action class.
474 * Preload actions should be registered with
475 * AwtToolkit::getInstance().GetPreloadThread().AddAction().
476 * AwtToolkit thread calls InitImpl method at the beghining
477 * and CleanImpl(false) before exiting for all registered actions.
478 * If an application provides own Toolkit thread
479 * (sun.awt.windows.WToolkit.embeddedInit), the thread calls Clean(true)
480 * for each action.
481 */
482 class PreloadThread; // forward declaration
483 class PreloadAction {
484 friend class PreloadThread;
485 public:
486 PreloadAction() : initThreadId(0), pNext(NULL) {}
487 virtual ~PreloadAction() {}
488
489 protected:
490 // called by PreloadThread or as result
491 // of EnsureInited() call (on Toolkit thread!).
492 virtual void InitImpl() = 0;
493
494 // called by PreloadThread (before exiting).
495 // reInit == false: normal shutdown;
496 // reInit == true: PreloadThread is shutting down due external
497 // Toolkit thread was provided.
498 virtual void CleanImpl(bool reInit) = 0;
499
500 public:
501 // Initialized the action on the Toolkit thread if not yet initialized.
502 bool EnsureInited();
503
504 // returns thread ID which the action was inited on (0 if not inited)
505 DWORD GetInitThreadID();
506
507 // Allows to deinitialize action earlier.
508 // The method must be called on the Toolkit thread only.
509 // returns true on success,
510 // false if the action was inited on other thread.
511 bool Clean();
512
513 private:
514 unsigned initThreadId;
515 // lock for Init/Clean
516 CriticalSection initLock;
517
518 // Chain support (for PreloadThread)
519 PreloadAction *pNext; // for action chain used by PreloadThread
520 void SetNext(PreloadAction *pNext) { this->pNext = pNext; }
521 PreloadAction *GetNext() { return pNext; }
522
523 // wrapper for AwtToolkit::InvokeFunction
524 static void InitWrapper(void *param);
525
526 void Init();
527 void Clean(bool reInit);
528
529 };
530
531 /** Toolkit preload thread class.
532 */
533 class PreloadThread {
534 public:
535 PreloadThread();
536 ~PreloadThread();
537
538 // adds action & start the thread if not yet started
539 bool AddAction(PreloadAction *pAction);
540
541 // sets termination flag; returns true if the thread is running.
542 // wrongThread specifies cause of the termination:
543 // false means termination on the application shutdown;
544 // wrongThread is used as reInit parameter for action cleanup.
545 bool Terminate(bool wrongThread);
546 bool InvokeAndTerminate(void(_cdecl *fn)(void *), void *param);
547
548 // waits for the the thread completion;
549 // use the method after Terminate() only if Terminate() returned true
550 INLINE void Wait4Finish() {
551 ::WaitForSingleObject(hFinished, INFINITE);
552 }
553
554 INLINE unsigned GetThreadId() {
555 CriticalSection::Lock lock(threadLock);
556 return threadId;
557 }
558 INLINE bool IsWrongThread() {
559 CriticalSection::Lock lock(threadLock);
560 return wrongThread;
561 }
562 // returns true if the current thread is "preload" thread
563 bool OnPreloadThread();
564
565 private:
566 // data access lock
567 CriticalSection threadLock;
568
569 // the thread status
570 enum Status {
571 None = -1, // initial
572 Preloading = 0, // preloading in progress
573 RunningToolkit, // Running as Toolkit thread
574 Cleaning, // exited from Toolkit thread proc, cleaning
575 Finished //
576 } status;
577
578 // "wrong thread" flag
579 bool wrongThread;
580
581 // thread proc (calls (this)param->ThreadProc())
582 static unsigned WINAPI StaticThreadProc(void *param);
583 unsigned ThreadProc();
584
585 INLINE void AwakeThread() {
586 ::SetEvent(hAwake);
587 }
588
589 // if threadId != 0 -> we are running
590 unsigned threadId;
591 // ThreadProc sets the event on exit
592 HANDLE hFinished;
593 // ThreadProc waits on the event for NewAction/Terminate/InvokeAndTerminate
594 HANDLE hAwake;
595
596 // function/param to invoke (InvokeAndTerminate)
597 // if execFunc == NULL => just terminate
598 void(_cdecl *execFunc)(void *);
599 void *execParam;
600
601 // action chain
602 PreloadAction *pActionChain;
603 PreloadAction *pLastProcessedAction;
604
605 // returns next action in the list (NULL if no more actions)
606 PreloadAction* GetNextAction();
607
608 };
609
610 INLINE PreloadThread& GetPreloadThread() { return preloadThread; }
611
612 private:
613 PreloadThread preloadThread;
614
615 };
616
617
618 /* creates an instance of T and assigns it to the argument, but only if
619 the argument is initially NULL. Supposed to be thread-safe.
620 returns the new value of the argument. I'm not using volatile here
621 as InterlockedCompareExchange ensures volatile semantics
622 and acquire/release.
623 The function is useful when used with static POD NULL-initialized
624 pointers, as they are guaranteed to be NULL before any dynamic
625 initialization takes place. This function turns such a pointer
626 into a thread-safe singleton, working regardless of dynamic
627 initialization order. Destruction problem is not solved,
628 we don't need it here.
629 */
630
631 template<typename T> inline T* SafeCreate(T* &pArg) {
632 /* this implementation has no locks, it just destroys the object if it
633 fails to be the first to init. another way would be using a special
634 flag pointer value to mark the pointer as "being initialized". */
635 T* pTemp = (T*)InterlockedCompareExchangePointer((void**)&pArg, NULL, NULL);
636 if (pTemp != NULL) return pTemp;
637 T* pNew = new T;
638 pTemp = (T*)InterlockedCompareExchangePointer((void**)&pArg, pNew, NULL);
639 if (pTemp != NULL) {
640 // we failed it - another thread has already initialized pArg
641 delete pNew;
642 return pTemp;
643 } else {
644 return pNew;
645 }
646 }
647
648 #endif /* AWT_TOOLKIT_H */