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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/mediactrl_qt.cpp
3 // Purpose: QuickTime Media Backend for Windows
4 // Author: Ryan Norton <wxprojects@comcast.net>
5 // Modified by: Robin Dunn (moved QT code from mediactrl.cpp)
6 //
7 // Created: 11/07/04
8 // RCS-ID: $Id$
9 // Copyright: (c) Ryan Norton
10 // Licence: wxWindows licence
11 /////////////////////////////////////////////////////////////////////////////
12
13
14 //===========================================================================
15 // DECLARATIONS
16 //===========================================================================
17
18 //---------------------------------------------------------------------------
19 // Pre-compiled header stuff
20 //---------------------------------------------------------------------------
21
22 // For compilers that support precompilation, includes "wx.h".
23 #include "wx/wxprec.h"
24
25 #ifdef __BORLANDC__
26 #pragma hdrstop
27 #endif
28
29 #if wxUSE_MEDIACTRL
30
31 #include "wx/mediactrl.h"
32
33 #ifndef WX_PRECOMP
34 #include "wx/log.h"
35 #include "wx/dcclient.h"
36 #include "wx/timer.h"
37 #include "wx/math.h" // log10 & pow
38 #endif
39
40 #include "wx/msw/private.h" // user info and wndproc setting/getting
41 #include "wx/dynlib.h"
42
43 //---------------------------------------------------------------------------
44 // Externals (somewhere in src/msw/app.cpp and src/msw/window.cpp)
45 //---------------------------------------------------------------------------
46 extern "C" WXDLLIMPEXP_BASE HINSTANCE wxGetInstance(void);
47 #ifdef __WXWINCE__
48 extern WXDLLIMPEXP_CORE wxChar *wxCanvasClassName;
49 #else
50 extern WXDLLIMPEXP_CORE const wxChar *wxCanvasClassName;
51 #endif
52
53 LRESULT WXDLLIMPEXP_CORE APIENTRY _EXPORT wxWndProc(HWND hWnd, UINT message,
54 WPARAM wParam, LPARAM lParam);
55
56 //---------------------------------------------------------------------------
57 // Killed MSVC warnings
58 //---------------------------------------------------------------------------
59 //disable "cast truncates constant value" for VARIANT_BOOL values
60 //passed as parameters in VC5 and up
61 #ifdef _MSC_VER
62 #pragma warning (disable:4310)
63 #endif
64
65
66 //---------------------------------------------------------------------------
67 // wxQTMediaBackend
68 //
69 // We don't include Quicktime headers here and define all the types
70 // ourselves because looking for the quicktime libaries etc. would
71 // be tricky to do and making this a dependency for the MSVC projects
72 // would be unrealistic.
73 //
74 // Thanks to Robert Roebling for the wxDL macro/library idea
75 //---------------------------------------------------------------------------
76
77 //---------------------------------------------------------------------------
78 // QT Includes
79 //---------------------------------------------------------------------------
80 //#include <qtml.h> // Windoze QT include
81 //#include <QuickTimeComponents.h> // Standard QT stuff
82 #include "wx/dynlib.h"
83
84 //---------------------------------------------------------------------------
85 // QT Types
86 //---------------------------------------------------------------------------
87 typedef struct MovieRecord* Movie;
88 typedef wxInt16 OSErr;
89 typedef wxInt32 OSStatus;
90 #define noErr 0
91 #define fsRdPerm 1
92 typedef unsigned char Str255[256];
93 #define StringPtr unsigned char*
94 #define newMovieActive 1
95 #define newMovieAsyncOK (1 << 8)
96 #define Ptr char*
97 #define Handle Ptr*
98 #define Fixed long
99 #define OSType unsigned long
100 #define CGrafPtr struct GrafPort *
101 #define TimeScale long
102 #define TimeBase struct TimeBaseRecord *
103 typedef struct ComponentInstanceRecord * ComponentInstance;
104 #define kMovieLoadStatePlayable 10000
105 #define Boolean int
106 #define MovieController ComponentInstance
107
108 #ifndef URLDataHandlerSubType
109 #if defined(__WATCOMC__) || defined(__MINGW32__)
110 // use magic numbers for compilers which complain about multicharacter integers
111 const OSType URLDataHandlerSubType = 1970433056;
112 const OSType VisualMediaCharacteristic = 1702454643;
113 #else
114 const OSType URLDataHandlerSubType = 'url ';
115 const OSType VisualMediaCharacteristic = 'eyes';
116 #endif
117 #endif
118
119 struct FSSpec
120 {
121 short vRefNum;
122 long parID;
123 Str255 name; // Str63 on mac, Str255 on msw
124 };
125
126 struct Rect
127 {
128 short top;
129 short left;
130 short bottom;
131 short right;
132 };
133
134 struct wide
135 {
136 wxInt32 hi;
137 wxUint32 lo;
138 };
139
140 struct TimeRecord
141 {
142 wide value; // units
143 TimeScale scale; // units per second
144 TimeBase base;
145 };
146
147 struct Point
148 {
149 short v;
150 short h;
151 };
152
153 struct EventRecord
154 {
155 wxUint16 what;
156 wxUint32 message;
157 wxUint32 when;
158 Point where;
159 wxUint16 modifiers;
160 };
161
162 enum
163 {
164 mcTopLeftMovie = 1,
165 mcScaleMovieToFit = 2,
166 mcWithBadge = 4,
167 mcNotVisible = 8,
168 mcWithFrame = 16
169 };
170
171 //---------------------------------------------------------------------------
172 // QT Library
173 //---------------------------------------------------------------------------
174 #define wxDL_METHOD_DEFINE( rettype, name, args, shortargs, defret ) \
175 typedef rettype (* name ## Type) args ; \
176 name ## Type pfn_ ## name; \
177 rettype name args \
178 { if (m_ok) return pfn_ ## name shortargs ; return defret; }
179
180 #define wxDL_VOIDMETHOD_DEFINE( name, args, shortargs ) \
181 typedef void (* name ## Type) args ; \
182 name ## Type pfn_ ## name; \
183 void name args \
184 { if (m_ok) pfn_ ## name shortargs ; }
185
186 #define wxDL_METHOD_LOAD( lib, name, success ) \
187 pfn_ ## name = (name ## Type) lib.GetSymbol( wxT(#name), &success ); \
188 if (!success) return false
189
190
191 class WXDLLIMPEXP_MEDIA wxQuickTimeLibrary
192 {
193 public:
194 ~wxQuickTimeLibrary()
195 {
196 if (m_dll.IsLoaded())
197 m_dll.Unload();
198 }
199
200 bool Initialize();
201 bool IsOk() const {return m_ok;}
202
203 protected:
204 wxDynamicLibrary m_dll;
205 bool m_ok;
206
207 public:
208 wxDL_VOIDMETHOD_DEFINE( StartMovie, (Movie m), (m) );
209 wxDL_VOIDMETHOD_DEFINE( StopMovie, (Movie m), (m) );
210 wxDL_METHOD_DEFINE( bool, IsMovieDone, (Movie m), (m), false);
211 wxDL_VOIDMETHOD_DEFINE( GoToBeginningOfMovie, (Movie m), (m) );
212 wxDL_METHOD_DEFINE( OSErr, GetMoviesError, (), (), -1);
213 wxDL_METHOD_DEFINE( OSErr, EnterMovies, (), (), -1);
214 wxDL_VOIDMETHOD_DEFINE( ExitMovies, (), () );
215 wxDL_METHOD_DEFINE( OSErr, InitializeQTML, (long flags), (flags), -1);
216 wxDL_VOIDMETHOD_DEFINE( TerminateQTML, (), () );
217
218 wxDL_METHOD_DEFINE( OSErr, NativePathNameToFSSpec,
219 (char* inName, FSSpec* outFile, long flags),
220 (inName, outFile, flags), -1);
221
222 wxDL_METHOD_DEFINE( OSErr, OpenMovieFile,
223 (const FSSpec * fileSpec, short * resRefNum, wxInt8 permission),
224 (fileSpec, resRefNum, permission), -1 );
225
226 wxDL_METHOD_DEFINE( OSErr, CloseMovieFile,
227 (short resRefNum), (resRefNum), -1);
228
229 wxDL_METHOD_DEFINE( OSErr, NewMovieFromFile,
230 (Movie * theMovie, short resRefNum, short * resId,
231 StringPtr resName, short newMovieFlags,
232 bool * dataRefWasChanged),
233 (theMovie, resRefNum, resId, resName, newMovieFlags,
234 dataRefWasChanged), -1);
235
236 wxDL_VOIDMETHOD_DEFINE( SetMovieRate, (Movie m, Fixed rate), (m, rate) );
237 wxDL_METHOD_DEFINE( Fixed, GetMovieRate, (Movie m), (m), 0);
238 wxDL_VOIDMETHOD_DEFINE( MoviesTask, (Movie m, long maxms), (m, maxms) );
239 wxDL_VOIDMETHOD_DEFINE( BlockMove,
240 (const char* p1, const char* p2, long s), (p1,p2,s) );
241 wxDL_METHOD_DEFINE( Handle, NewHandleClear, (long s), (s), NULL );
242
243 wxDL_METHOD_DEFINE( OSErr, NewMovieFromDataRef,
244 (Movie * m, short flags, short * id,
245 Handle dataRef, OSType dataRefType),
246 (m,flags,id,dataRef,dataRefType), -1 );
247
248 wxDL_VOIDMETHOD_DEFINE( DisposeHandle, (Handle h), (h) );
249 wxDL_VOIDMETHOD_DEFINE( GetMovieNaturalBoundsRect, (Movie m, Rect* r), (m,r) );
250 wxDL_METHOD_DEFINE( void*, GetMovieIndTrackType,
251 (Movie m, long index, OSType type, long flags),
252 (m,index,type,flags), NULL );
253 wxDL_VOIDMETHOD_DEFINE( CreatePortAssociation,
254 (void* hWnd, void* junk, long morejunk), (hWnd, junk, morejunk) );
255 wxDL_METHOD_DEFINE(void*, GetNativeWindowPort, (void* hWnd), (hWnd), NULL);
256 wxDL_VOIDMETHOD_DEFINE(SetMovieGWorld, (Movie m, CGrafPtr port, void* whatever),
257 (m, port, whatever) );
258 wxDL_VOIDMETHOD_DEFINE(DisposeMovie, (Movie m), (m) );
259 wxDL_VOIDMETHOD_DEFINE(SetMovieBox, (Movie m, Rect* r), (m,r));
260 wxDL_VOIDMETHOD_DEFINE(SetMovieTimeScale, (Movie m, long s), (m,s));
261 wxDL_METHOD_DEFINE(long, GetMovieDuration, (Movie m), (m), 0);
262 wxDL_METHOD_DEFINE(TimeBase, GetMovieTimeBase, (Movie m), (m), 0);
263 wxDL_METHOD_DEFINE(TimeScale, GetMovieTimeScale, (Movie m), (m), 0);
264 wxDL_METHOD_DEFINE(long, GetMovieTime, (Movie m, void* cruft), (m,cruft), 0);
265 wxDL_VOIDMETHOD_DEFINE(SetMovieTime, (Movie m, TimeRecord* tr), (m,tr) );
266 wxDL_METHOD_DEFINE(short, GetMovieVolume, (Movie m), (m), 0);
267 wxDL_VOIDMETHOD_DEFINE(SetMovieVolume, (Movie m, short sVolume), (m,sVolume) );
268 wxDL_VOIDMETHOD_DEFINE(SetMovieTimeValue, (Movie m, long s), (m,s));
269 wxDL_METHOD_DEFINE(ComponentInstance, NewMovieController, (Movie m, const Rect* mr, long fl), (m,mr,fl), 0);
270 wxDL_VOIDMETHOD_DEFINE(DisposeMovieController, (ComponentInstance ci), (ci));
271 wxDL_METHOD_DEFINE(int, MCSetVisible, (ComponentInstance m, int b), (m, b), 0);
272
273 wxDL_VOIDMETHOD_DEFINE(PrePrerollMovie, (Movie m, long t, Fixed r, WXFARPROC p1, void* p2), (m,t,r,p1,p2) );
274 wxDL_VOIDMETHOD_DEFINE(PrerollMovie, (Movie m, long t, Fixed r), (m,t,r) );
275 wxDL_METHOD_DEFINE(Fixed, GetMoviePreferredRate, (Movie m), (m), 0);
276 wxDL_METHOD_DEFINE(long, GetMovieLoadState, (Movie m), (m), 0);
277 wxDL_METHOD_DEFINE(void*, NewRoutineDescriptor, (WXFARPROC f, int l, void* junk), (f, l, junk), 0);
278 wxDL_VOIDMETHOD_DEFINE(DisposeRoutineDescriptor, (void* f), (f));
279 wxDL_METHOD_DEFINE(void*, GetCurrentArchitecture, (), (), 0);
280 wxDL_METHOD_DEFINE(int, MCDoAction, (ComponentInstance ci, long f, void* p), (ci,f,p), 0);
281 wxDL_VOIDMETHOD_DEFINE(MCSetControllerBoundsRect, (ComponentInstance ci, Rect* r), (ci,r));
282 wxDL_VOIDMETHOD_DEFINE(DestroyPortAssociation, (CGrafPtr g), (g));
283 wxDL_VOIDMETHOD_DEFINE(NativeEventToMacEvent, (MSG* p1, EventRecord* p2), (p1,p2));
284 wxDL_VOIDMETHOD_DEFINE(MCIsPlayerEvent, (ComponentInstance ci, EventRecord* p2), (ci, p2));
285 wxDL_METHOD_DEFINE(int, MCSetMovie, (ComponentInstance ci, Movie m, void* p1, Point w),
286 (ci,m,p1,w),0);
287 wxDL_VOIDMETHOD_DEFINE(MCPositionController,
288 (ComponentInstance ci, Rect* r, void* junk, void* morejunk), (ci,r,junk,morejunk));
289 wxDL_VOIDMETHOD_DEFINE(MCSetActionFilterWithRefCon,
290 (ComponentInstance ci, WXFARPROC cb, void* ref), (ci,cb,ref));
291 wxDL_VOIDMETHOD_DEFINE(MCGetControllerInfo, (MovieController mc, long* flags), (mc,flags));
292 wxDL_VOIDMETHOD_DEFINE(BeginUpdate, (CGrafPtr port), (port));
293 wxDL_VOIDMETHOD_DEFINE(UpdateMovie, (Movie m), (m));
294 wxDL_VOIDMETHOD_DEFINE(EndUpdate, (CGrafPtr port), (port));
295 wxDL_METHOD_DEFINE( OSErr, GetMoviesStickyError, (), (), -1);
296 };
297
298 bool wxQuickTimeLibrary::Initialize()
299 {
300 m_ok = false;
301
302 // Turn off the wxDynamicLibrary logging as we're prepared to handle the
303 // errors
304 wxLogNull nolog;
305
306 if (!m_dll.Load(wxT("qtmlClient.dll")))
307 {
308 return false;
309 }
310
311 wxDL_METHOD_LOAD( m_dll, StartMovie, m_ok );
312 wxDL_METHOD_LOAD( m_dll, StopMovie, m_ok );
313 wxDL_METHOD_LOAD( m_dll, IsMovieDone, m_ok );
314 wxDL_METHOD_LOAD( m_dll, GoToBeginningOfMovie, m_ok );
315 wxDL_METHOD_LOAD( m_dll, GetMoviesError, m_ok );
316 wxDL_METHOD_LOAD( m_dll, EnterMovies, m_ok );
317 wxDL_METHOD_LOAD( m_dll, ExitMovies, m_ok );
318 wxDL_METHOD_LOAD( m_dll, InitializeQTML, m_ok );
319 wxDL_METHOD_LOAD( m_dll, TerminateQTML, m_ok );
320 wxDL_METHOD_LOAD( m_dll, NativePathNameToFSSpec, m_ok );
321 wxDL_METHOD_LOAD( m_dll, OpenMovieFile, m_ok );
322 wxDL_METHOD_LOAD( m_dll, CloseMovieFile, m_ok );
323 wxDL_METHOD_LOAD( m_dll, NewMovieFromFile, m_ok );
324 wxDL_METHOD_LOAD( m_dll, GetMovieRate, m_ok );
325 wxDL_METHOD_LOAD( m_dll, SetMovieRate, m_ok );
326 wxDL_METHOD_LOAD( m_dll, MoviesTask, m_ok );
327 wxDL_METHOD_LOAD( m_dll, BlockMove, m_ok );
328 wxDL_METHOD_LOAD( m_dll, NewHandleClear, m_ok );
329 wxDL_METHOD_LOAD( m_dll, NewMovieFromDataRef, m_ok );
330 wxDL_METHOD_LOAD( m_dll, DisposeHandle, m_ok );
331 wxDL_METHOD_LOAD( m_dll, GetMovieNaturalBoundsRect, m_ok );
332 wxDL_METHOD_LOAD( m_dll, GetMovieIndTrackType, m_ok );
333 wxDL_METHOD_LOAD( m_dll, CreatePortAssociation, m_ok );
334 wxDL_METHOD_LOAD( m_dll, DestroyPortAssociation, m_ok );
335 wxDL_METHOD_LOAD( m_dll, GetNativeWindowPort, m_ok );
336 wxDL_METHOD_LOAD( m_dll, SetMovieGWorld, m_ok );
337 wxDL_METHOD_LOAD( m_dll, DisposeMovie, m_ok );
338 wxDL_METHOD_LOAD( m_dll, SetMovieBox, m_ok );
339 wxDL_METHOD_LOAD( m_dll, SetMovieTimeScale, m_ok );
340 wxDL_METHOD_LOAD( m_dll, GetMovieDuration, m_ok );
341 wxDL_METHOD_LOAD( m_dll, GetMovieTimeBase, m_ok );
342 wxDL_METHOD_LOAD( m_dll, GetMovieTimeScale, m_ok );
343 wxDL_METHOD_LOAD( m_dll, GetMovieTime, m_ok );
344 wxDL_METHOD_LOAD( m_dll, SetMovieTime, m_ok );
345 wxDL_METHOD_LOAD( m_dll, GetMovieVolume, m_ok );
346 wxDL_METHOD_LOAD( m_dll, SetMovieVolume, m_ok );
347 wxDL_METHOD_LOAD( m_dll, SetMovieTimeValue, m_ok );
348 wxDL_METHOD_LOAD( m_dll, NewMovieController, m_ok );
349 wxDL_METHOD_LOAD( m_dll, DisposeMovieController, m_ok );
350 wxDL_METHOD_LOAD( m_dll, MCSetVisible, m_ok );
351 wxDL_METHOD_LOAD( m_dll, PrePrerollMovie, m_ok );
352 wxDL_METHOD_LOAD( m_dll, PrerollMovie, m_ok );
353 wxDL_METHOD_LOAD( m_dll, GetMoviePreferredRate, m_ok );
354 wxDL_METHOD_LOAD( m_dll, GetMovieLoadState, m_ok );
355 wxDL_METHOD_LOAD( m_dll, MCDoAction, m_ok );
356 wxDL_METHOD_LOAD( m_dll, MCSetControllerBoundsRect, m_ok );
357 wxDL_METHOD_LOAD( m_dll, NativeEventToMacEvent, m_ok );
358 wxDL_METHOD_LOAD( m_dll, MCIsPlayerEvent, m_ok );
359 wxDL_METHOD_LOAD( m_dll, MCSetMovie, m_ok );
360 wxDL_METHOD_LOAD( m_dll, MCSetActionFilterWithRefCon, m_ok );
361 wxDL_METHOD_LOAD( m_dll, MCGetControllerInfo, m_ok );
362 wxDL_METHOD_LOAD( m_dll, BeginUpdate, m_ok );
363 wxDL_METHOD_LOAD( m_dll, UpdateMovie, m_ok );
364 wxDL_METHOD_LOAD( m_dll, EndUpdate, m_ok );
365 wxDL_METHOD_LOAD( m_dll, GetMoviesStickyError, m_ok );
366
367 m_ok = true;
368
369 return true;
370 }
371
372 class WXDLLIMPEXP_MEDIA wxQTMediaBackend : public wxMediaBackendCommonBase
373 {
374 public:
375 wxQTMediaBackend();
376 virtual ~wxQTMediaBackend();
377
378 virtual bool CreateControl(wxControl* ctrl, wxWindow* parent,
379 wxWindowID id,
380 const wxPoint& pos,
381 const wxSize& size,
382 long style,
383 const wxValidator& validator,
384 const wxString& name);
385
386 virtual bool Play();
387 virtual bool Pause();
388 virtual bool Stop();
389
390 virtual bool Load(const wxURI& location,
391 const wxURI& proxy)
392 { return wxMediaBackend::Load(location, proxy); }
393
394 virtual bool Load(const wxString& fileName);
395 virtual bool Load(const wxURI& location);
396
397 virtual wxMediaState GetState();
398
399 virtual bool SetPosition(wxLongLong where);
400 virtual wxLongLong GetPosition();
401 virtual wxLongLong GetDuration();
402
403 virtual void Move(int x, int y, int w, int h);
404 wxSize GetVideoSize() const;
405
406 virtual double GetPlaybackRate();
407 virtual bool SetPlaybackRate(double dRate);
408
409 virtual double GetVolume();
410 virtual bool SetVolume(double);
411
412 void Cleanup();
413 void FinishLoad();
414
415 static void PPRMProc (Movie theMovie, OSErr theErr, void* theRefCon);
416
417 // TODO: Last param actually long - does this work on 64bit machines?
418 static Boolean MCFilterProc(MovieController theController,
419 short action, void *params, LONG_PTR refCon);
420
421 static LRESULT CALLBACK QTWndProc(HWND, UINT, WPARAM, LPARAM);
422
423 virtual bool ShowPlayerControls(wxMediaCtrlPlayerControls flags);
424
425 wxSize m_bestSize; // Original movie size
426 Movie m_movie; // QT Movie handle/instance
427 bool m_bVideo; // Whether or not we have video
428 bool m_bPlaying; // Whether or not movie is playing
429 wxTimer* m_timer; // Load or Play timer
430 wxQuickTimeLibrary m_lib; // DLL to load functions from
431 ComponentInstance m_pMC; // Movie Controller
432
433 friend class wxQTMediaEvtHandler;
434
435 DECLARE_DYNAMIC_CLASS(wxQTMediaBackend)
436 };
437
438 // helper to hijack background erasing for the QT window
439 class WXDLLIMPEXP_MEDIA wxQTMediaEvtHandler : public wxEvtHandler
440 {
441 public:
442 wxQTMediaEvtHandler(wxQTMediaBackend *qtb, WXHWND hwnd)
443 {
444 m_qtb = qtb;
445 m_hwnd = hwnd;
446
447 m_qtb->m_ctrl->Connect(m_qtb->m_ctrl->GetId(),
448 wxEVT_ERASE_BACKGROUND,
449 wxEraseEventHandler(wxQTMediaEvtHandler::OnEraseBackground),
450 NULL, this);
451 }
452
453 void OnEraseBackground(wxEraseEvent& event);
454
455 private:
456 wxQTMediaBackend *m_qtb;
457 WXHWND m_hwnd;
458
459 DECLARE_NO_COPY_CLASS(wxQTMediaEvtHandler)
460 };
461
462
463 //===========================================================================
464 // IMPLEMENTATION
465 //===========================================================================
466
467
468 //---------------------------------------------------------------------------
469 // wxQTMediaBackend
470 //
471 // TODO: Use a less kludgy way to pause/get state/set state
472 // FIXME: Greg Hazel reports that sometimes files that cannot be played
473 // with this backend are treated as playable anyway - not verified though.
474 //---------------------------------------------------------------------------
475
476 IMPLEMENT_DYNAMIC_CLASS(wxQTMediaBackend, wxMediaBackend)
477
478 // Time between timer calls - this is the Apple recommendation to the TCL
479 // team I believe
480 #define MOVIE_DELAY 20
481
482 //---------------------------------------------------------------------------
483 // wxQTLoadTimer
484 //
485 // QT, esp. QT for Windows is very picky about how you go about
486 // async loading. If you were to go through a Windows message loop
487 // or a MoviesTask or both and then check the movie load state
488 // it would still return 1000 (loading)... even (pre)prerolling doesn't
489 // help. However, making a load timer like this works
490 //---------------------------------------------------------------------------
491 class wxQTLoadTimer : public wxTimer
492 {
493 public:
494 wxQTLoadTimer(Movie movie, wxQTMediaBackend* parent, wxQuickTimeLibrary* pLib) :
495 m_movie(movie), m_parent(parent), m_pLib(pLib) {}
496
497 void Notify()
498 {
499 m_pLib->MoviesTask(m_movie, 0);
500 // kMovieLoadStatePlayable
501 if (m_pLib->GetMovieLoadState(m_movie) >= 10000)
502 {
503 m_parent->FinishLoad();
504 delete this;
505 }
506 }
507
508 protected:
509 Movie m_movie; //Our movie instance
510 wxQTMediaBackend* m_parent; //Backend pointer
511 wxQuickTimeLibrary* m_pLib; //Interfaces
512 };
513
514
515 // --------------------------------------------------------------------------
516 // wxQTPlayTimer - Handle Asyncronous Playing
517 //
518 // 1) Checks to see if the movie is done, and if not continues
519 // streaming the movie
520 // 2) Sends the wxEVT_MEDIA_STOP event if we have reached the end of
521 // the movie.
522 // --------------------------------------------------------------------------
523 class wxQTPlayTimer : public wxTimer
524 {
525 public:
526 wxQTPlayTimer(Movie movie, wxQTMediaBackend* parent,
527 wxQuickTimeLibrary* pLib) :
528 m_movie(movie), m_parent(parent), m_pLib(pLib) {}
529
530 void Notify()
531 {
532 //
533 // OK, a little explaining - basically originally
534 // we only called MoviesTask if the movie was actually
535 // playing (not paused or stopped)... this was before
536 // we realized MoviesTask actually handles repainting
537 // of the current frame - so if you were to resize
538 // or something it would previously not redraw that
539 // portion of the movie.
540 //
541 // So now we call MoviesTask always so that it repaints
542 // correctly.
543 //
544 m_pLib->MoviesTask(m_movie, 0);
545
546 //
547 // Handle the stop event - if the movie has reached
548 // the end, notify our handler
549 //
550 // m_bPlaying == !(Stopped | Paused)
551 //
552 if (m_parent->m_bPlaying)
553 {
554 if (m_pLib->IsMovieDone(m_movie))
555 {
556 if ( m_parent->SendStopEvent() )
557 {
558 m_parent->Stop();
559 wxASSERT(m_pLib->GetMoviesError() == noErr);
560
561 m_parent->QueueFinishEvent();
562 }
563 }
564 }
565 }
566
567 protected:
568 Movie m_movie; // Our movie instance
569 wxQTMediaBackend* m_parent; //Backend pointer
570 wxQuickTimeLibrary* m_pLib; //Interfaces
571 };
572
573
574 //---------------------------------------------------------------------------
575 // wxQTMediaBackend::QTWndProc
576 //
577 // Forwards events to the Movie Controller so that it can
578 // redraw itself/process messages etc..
579 //---------------------------------------------------------------------------
580 LRESULT CALLBACK wxQTMediaBackend::QTWndProc(HWND hWnd, UINT nMsg,
581 WPARAM wParam, LPARAM lParam)
582 {
583 wxQTMediaBackend* pThis = (wxQTMediaBackend*)wxGetWindowUserData(hWnd);
584
585 MSG msg;
586 msg.hwnd = hWnd;
587 msg.message = nMsg;
588 msg.wParam = wParam;
589 msg.lParam = lParam;
590 msg.time = 0;
591 msg.pt.x = 0;
592 msg.pt.y = 0;
593 EventRecord theEvent;
594 pThis->m_lib.NativeEventToMacEvent(&msg, &theEvent);
595 pThis->m_lib.MCIsPlayerEvent(pThis->m_pMC, &theEvent);
596
597 return pThis->m_ctrl->MSWWindowProc(nMsg, wParam, lParam);
598 }
599
600 //---------------------------------------------------------------------------
601 // wxQTMediaBackend Destructor
602 //
603 // Sets m_timer to NULL signifying we havn't loaded anything yet
604 //---------------------------------------------------------------------------
605 wxQTMediaBackend::wxQTMediaBackend()
606 : m_movie(NULL), m_bPlaying(false), m_timer(NULL), m_pMC(NULL)
607 {
608 }
609
610 //---------------------------------------------------------------------------
611 // wxQTMediaBackend Destructor
612 //
613 // 1) Cleans up the QuickTime movie instance
614 // 2) Decrements the QuickTime reference counter - if this reaches
615 // 0, QuickTime shuts down
616 // 3) Decrements the QuickTime Windows Media Layer reference counter -
617 // if this reaches 0, QuickTime shuts down the Windows Media Layer
618 //---------------------------------------------------------------------------
619 wxQTMediaBackend::~wxQTMediaBackend()
620 {
621 if (m_movie)
622 Cleanup();
623
624 if (m_lib.IsOk())
625 {
626 if (m_pMC)
627 {
628 m_lib.DisposeMovieController(m_pMC);
629 // m_pMC = NULL;
630 }
631
632 // destroy wxQTMediaEvtHandler we pushed on it
633 m_ctrl->PopEventHandler(true);
634
635 m_lib.DestroyPortAssociation(
636 (CGrafPtr)m_lib.GetNativeWindowPort(m_ctrl->GetHWND()));
637
638 //Note that ExitMovies() is not necessary, but
639 //the docs are fuzzy on whether or not TerminateQTML is
640 m_lib.ExitMovies();
641 m_lib.TerminateQTML();
642 }
643 }
644
645 //---------------------------------------------------------------------------
646 // wxQTMediaBackend::CreateControl
647 //
648 // 1) Intializes QuickTime
649 // 2) Creates the control window
650 //---------------------------------------------------------------------------
651 bool wxQTMediaBackend::CreateControl(wxControl* ctrl, wxWindow* parent,
652 wxWindowID id,
653 const wxPoint& pos,
654 const wxSize& size,
655 long style,
656 const wxValidator& validator,
657 const wxString& name)
658 {
659 if (!m_lib.Initialize())
660 return false;
661
662 int nError = m_lib.InitializeQTML(0);
663 if (nError != noErr) //-2093 no dll
664 {
665 wxFAIL_MSG(wxString::Format(wxT("Couldn't Initialize Quicktime-%i"), nError));
666 return false;
667 }
668
669 m_lib.EnterMovies();
670
671 // Create window
672 // By default wxWindow(s) is created with a border -
673 // so we need to get rid of those
674 //
675 // Since we don't have a child window like most other
676 // backends, we don't need wxCLIP_CHILDREN
677 if ( !ctrl->wxControl::Create(parent, id, pos, size,
678 (style & ~wxBORDER_MASK) | wxBORDER_NONE,
679 validator, name) )
680 {
681 return false;
682 }
683
684 m_ctrl = wxStaticCast(ctrl, wxMediaCtrl);
685
686 // Create a port association for our window so we
687 // can use it as a WindowRef
688 m_lib.CreatePortAssociation(m_ctrl->GetHWND(), NULL, 0L);
689
690 // Part of a suggestion from Greg Hazel
691 // to repaint movie when idle
692 m_ctrl->PushEventHandler(new wxQTMediaEvtHandler(this, m_ctrl->GetHWND()));
693
694 // done
695 return true;
696 }
697
698 //---------------------------------------------------------------------------
699 // wxQTMediaBackend::Load (file version)
700 //
701 // 1) Get an FSSpec from the Windows path name
702 // 2) Open the movie
703 // 3) Obtain the movie instance from the movie resource
704 // 4) Close the movie resource
705 // 5) Finish loading
706 //---------------------------------------------------------------------------
707 bool wxQTMediaBackend::Load(const wxString& fileName)
708 {
709 if (m_movie)
710 Cleanup();
711
712 bool result = true;
713 OSErr err = noErr;
714 short movieResFile = 0; //= 0 because of annoying VC6 warning
715 FSSpec sfFile;
716
717 err = m_lib.NativePathNameToFSSpec(
718 (char*) (const char*) fileName.mb_str(),
719 &sfFile, 0);
720 result = (err == noErr);
721
722 if (result)
723 {
724 err = m_lib.OpenMovieFile(&sfFile, &movieResFile, fsRdPerm);
725 result = (err == noErr);
726 }
727
728 if (result)
729 {
730 short movieResID = 0;
731 Str255 movieName;
732
733 err = m_lib.NewMovieFromFile(
734 &m_movie,
735 movieResFile,
736 &movieResID,
737 movieName,
738 newMovieActive,
739 NULL ); // wasChanged
740 result = (err == noErr /*&& m_lib.GetMoviesStickyError() == noErr*/);
741
742 // check m_lib.GetMoviesStickyError() because it may not find the
743 // proper codec and play black video and other strange effects,
744 // not to mention mess up the dynamic backend loading scheme
745 // of wxMediaCtrl - so it just does what the QuickTime player does
746 if (result)
747 {
748 m_lib.CloseMovieFile(movieResFile);
749 FinishLoad();
750 }
751 }
752
753 return result;
754 }
755
756 //---------------------------------------------------------------------------
757 // wxQTMediaBackend::PPRMProc (static)
758 //
759 // Called when done PrePrerolling the movie.
760 // Note that in 99% of the cases this does nothing...
761 // Anyway we set up the loading timer here to tell us when the movie is done
762 //---------------------------------------------------------------------------
763 void wxQTMediaBackend::PPRMProc (Movie theMovie,
764 OSErr WXUNUSED_UNLESS_DEBUG(theErr),
765 void* theRefCon)
766 {
767 wxASSERT( theMovie );
768 wxASSERT( theRefCon );
769 wxASSERT( theErr == noErr );
770
771 wxQTMediaBackend* pBE = (wxQTMediaBackend*) theRefCon;
772
773 long lTime = pBE->m_lib.GetMovieTime(theMovie,NULL);
774 Fixed rate = pBE->m_lib.GetMoviePreferredRate(theMovie);
775 pBE->m_lib.PrerollMovie(theMovie, lTime, rate);
776 pBE->m_timer = new wxQTLoadTimer(pBE->m_movie, pBE, &pBE->m_lib);
777 pBE->m_timer->Start(MOVIE_DELAY);
778 }
779
780 //---------------------------------------------------------------------------
781 // wxQTMediaBackend::Load (URL Version)
782 //
783 // 1) Build an escaped URI from location
784 // 2) Create a handle to store the URI string
785 // 3) Put the URI string inside the handle
786 // 4) Make a QuickTime URL data ref from the handle with the URI in it
787 // 5) Clean up the URI string handle
788 // 6) Do some prerolling
789 // 7) Finish Loading
790 //---------------------------------------------------------------------------
791 bool wxQTMediaBackend::Load(const wxURI& location)
792 {
793 if (m_movie)
794 Cleanup();
795
796 wxString theURI = location.BuildURI();
797
798 Handle theHandle = m_lib.NewHandleClear(theURI.length() + 1);
799 wxASSERT(theHandle);
800
801 m_lib.BlockMove(theURI.mb_str(), *theHandle, theURI.length() + 1);
802
803 // create the movie from the handle that refers to the URI
804 OSErr err = m_lib.NewMovieFromDataRef(&m_movie, newMovieActive |
805 newMovieAsyncOK
806 /* | newMovieIdleImportOK */,
807 NULL, theHandle,
808 URLDataHandlerSubType);
809
810 m_lib.DisposeHandle(theHandle);
811
812 if (err == noErr)
813 {
814 long timeNow;
815 Fixed playRate;
816
817 timeNow = m_lib.GetMovieTime(m_movie, NULL);
818 wxASSERT(m_lib.GetMoviesError() == noErr);
819
820 playRate = m_lib.GetMoviePreferredRate(m_movie);
821 wxASSERT(m_lib.GetMoviesError() == noErr);
822
823 // Note that the callback here is optional,
824 // but without it PrePrerollMovie can be buggy
825 // (see Apple ml). Also, some may wonder
826 // why we need this at all - this is because
827 // Apple docs say QuickTime streamed movies
828 // require it if you don't use a Movie Controller,
829 // which we don't by default.
830 //
831 m_lib.PrePrerollMovie(m_movie, timeNow, playRate,
832 (WXFARPROC)wxQTMediaBackend::PPRMProc,
833 (void*)this);
834
835 return true;
836 }
837 else
838 return false;
839 }
840
841 //---------------------------------------------------------------------------
842 // wxQTMediaBackend::FinishLoad
843 //
844 // 1) Create the movie timer
845 // 2) Get real size of movie for GetBestSize/sizers
846 // 3) Set the movie time scale to something usable so that seeking
847 // etc. will work correctly
848 // 4) Set our Movie Controller to display the movie if it exists,
849 // otherwise set the bounds of the Movie
850 // 5) Refresh parent window
851 //---------------------------------------------------------------------------
852 void wxQTMediaBackend::FinishLoad()
853 {
854 // Create the playing/streaming timer
855 m_timer = new wxQTPlayTimer(m_movie, (wxQTMediaBackend*) this, &m_lib);
856 wxASSERT(m_timer);
857
858 m_timer->Start(MOVIE_DELAY, wxTIMER_CONTINUOUS);
859
860 // get the real size of the movie
861 Rect outRect;
862 memset(&outRect, 0, sizeof(Rect)); // suppress annoying VC6 warning
863 m_lib.GetMovieNaturalBoundsRect (m_movie, &outRect);
864 wxASSERT(m_lib.GetMoviesError() == noErr);
865
866 m_bestSize.x = outRect.right - outRect.left;
867 m_bestSize.y = outRect.bottom - outRect.top;
868
869 // Handle the movie GWorld
870 if (m_pMC)
871 {
872 Point thePoint;
873 thePoint.h = thePoint.v = 0;
874 m_lib.MCSetMovie(m_pMC, m_movie,
875 m_lib.GetNativeWindowPort(m_ctrl->GetHandle()),
876 thePoint);
877 m_lib.MCSetVisible(m_pMC, true);
878 m_bestSize.y += 16;
879 }
880 else
881 {
882 m_lib.SetMovieGWorld(m_movie,
883 (CGrafPtr) m_lib.GetNativeWindowPort(m_ctrl->GetHWND()),
884 NULL);
885 }
886
887 // Set the movie to millisecond precision
888 m_lib.SetMovieTimeScale(m_movie, 1000);
889 wxASSERT(m_lib.GetMoviesError() == noErr);
890
891 NotifyMovieLoaded();
892 }
893
894 //---------------------------------------------------------------------------
895 // wxQTMediaBackend::Play
896 //
897 // 1) Start the QT movie
898 // 2) Start the movie loading timer
899 //
900 // NOTE: This will still return success even when
901 // the movie is still loading, and as mentioned in wxQTLoadTimer
902 // I don't know of a way to force this to be sync - so if its
903 // still loading the function will return true but the movie will
904 // still be in the stopped state
905 //---------------------------------------------------------------------------
906 bool wxQTMediaBackend::Play()
907 {
908 m_lib.StartMovie(m_movie);
909 m_bPlaying = true;
910
911 return m_lib.GetMoviesError() == noErr;
912 }
913
914 //---------------------------------------------------------------------------
915 // wxQTMediaBackend::Pause
916 //
917 // 1) Stop the movie
918 // 2) Stop the movie timer
919 //---------------------------------------------------------------------------
920 bool wxQTMediaBackend::Pause()
921 {
922 m_bPlaying = false;
923 m_lib.StopMovie(m_movie);
924
925 return m_lib.GetMoviesError() == noErr;
926 }
927
928 //---------------------------------------------------------------------------
929 // wxQTMediaBackend::Stop
930 //
931 // 1) Stop the movie
932 // 2) Stop the movie timer
933 // 3) Seek to the beginning of the movie
934 //---------------------------------------------------------------------------
935 bool wxQTMediaBackend::Stop()
936 {
937 m_bPlaying = false;
938
939 m_lib.StopMovie(m_movie);
940 if (m_lib.GetMoviesError() == noErr)
941 m_lib.GoToBeginningOfMovie(m_movie);
942
943 return m_lib.GetMoviesError() == noErr;
944 }
945
946 //---------------------------------------------------------------------------
947 // wxQTMediaBackend::GetPlaybackRate
948 //
949 // Get the movie playback rate from ::GetMovieRate
950 //---------------------------------------------------------------------------
951 double wxQTMediaBackend::GetPlaybackRate()
952 {
953 return ( ((double)m_lib.GetMovieRate(m_movie)) / 0x10000);
954 }
955
956 //---------------------------------------------------------------------------
957 // wxQTMediaBackend::SetPlaybackRate
958 //
959 // Convert dRate to Fixed and Set the movie rate through SetMovieRate
960 //---------------------------------------------------------------------------
961 bool wxQTMediaBackend::SetPlaybackRate(double dRate)
962 {
963 m_lib.SetMovieRate(m_movie, (Fixed) (dRate * 0x10000));
964
965 return m_lib.GetMoviesError() == noErr;
966 }
967
968 //---------------------------------------------------------------------------
969 // wxQTMediaBackend::SetPosition
970 //
971 // 1) Create a time record struct (TimeRecord) with appropriate values
972 // 2) Pass struct to SetMovieTime
973 //---------------------------------------------------------------------------
974 bool wxQTMediaBackend::SetPosition(wxLongLong where)
975 {
976 // NB: For some reason SetMovieTime does not work
977 // correctly with the Quicktime Windows SDK (6)
978 // From Muskelkatermann at the wxForum
979 // http://www.solidsteel.nl/users/wxwidgets/viewtopic.php?t=2957
980 // RN - note that I have not verified this but there
981 // is no harm in calling SetMovieTimeValue instead
982 #if 0
983 TimeRecord theTimeRecord;
984 memset(&theTimeRecord, 0, sizeof(TimeRecord));
985 theTimeRecord.value.lo = where.GetLo();
986 theTimeRecord.scale = m_lib.GetMovieTimeScale(m_movie);
987 theTimeRecord.base = m_lib.GetMovieTimeBase(m_movie);
988 m_lib.SetMovieTime(m_movie, &theTimeRecord);
989 #else
990 m_lib.SetMovieTimeValue(m_movie, where.GetLo());
991 #endif
992
993 return (m_lib.GetMoviesError() == noErr);
994 }
995
996 //---------------------------------------------------------------------------
997 // wxQTMediaBackend::GetPosition
998 //
999 // 1) Calls GetMovieTime to get the position we are in in the movie
1000 // in milliseconds (we called
1001 //---------------------------------------------------------------------------
1002 wxLongLong wxQTMediaBackend::GetPosition()
1003 {
1004 return m_lib.GetMovieTime(m_movie, NULL);
1005 }
1006
1007 //---------------------------------------------------------------------------
1008 // wxQTMediaBackend::GetVolume
1009 //
1010 // Gets the volume through GetMovieVolume - which returns a 16 bit short -
1011 //
1012 // +--------+--------+
1013 // + (1) + (2) +
1014 // +--------+--------+
1015 //
1016 // (1) first 8 bits are value before decimal
1017 // (2) second 8 bits are value after decimal
1018 //
1019 // Volume ranges from -1.0 (gain but no sound), 0 (no sound and no gain) to
1020 // 1 (full gain and sound)
1021 //---------------------------------------------------------------------------
1022 double wxQTMediaBackend::GetVolume()
1023 {
1024 short sVolume = m_lib.GetMovieVolume(m_movie);
1025 wxASSERT(m_lib.GetMoviesError() == noErr);
1026
1027 if (sVolume & (128 << 8)) //negative - no sound
1028 return 0.0;
1029
1030 return sVolume / 256.0;
1031 }
1032
1033 //---------------------------------------------------------------------------
1034 // wxQTMediaBackend::SetVolume
1035 //
1036 // Sets the volume through SetMovieVolume - which takes a 16 bit short -
1037 //
1038 // +--------+--------+
1039 // + (1) + (2) +
1040 // +--------+--------+
1041 //
1042 // (1) first 8 bits are value before decimal
1043 // (2) second 8 bits are value after decimal
1044 //
1045 // Volume ranges from -1.0 (gain but no sound), 0 (no sound and no gain) to
1046 // 1 (full gain and sound)
1047 //---------------------------------------------------------------------------
1048 bool wxQTMediaBackend::SetVolume(double dVolume)
1049 {
1050 m_lib.SetMovieVolume(m_movie, (short) (dVolume * 256));
1051 return m_lib.GetMoviesError() == noErr;
1052 }
1053
1054 //---------------------------------------------------------------------------
1055 // wxQTMediaBackend::GetDuration
1056 //
1057 // Calls GetMovieDuration
1058 //---------------------------------------------------------------------------
1059 wxLongLong wxQTMediaBackend::GetDuration()
1060 {
1061 return m_lib.GetMovieDuration(m_movie);
1062 }
1063
1064 //---------------------------------------------------------------------------
1065 // wxQTMediaBackend::GetState
1066 //
1067 // Determines the current state:
1068 // if we are at the beginning, then we are stopped
1069 //---------------------------------------------------------------------------
1070 wxMediaState wxQTMediaBackend::GetState()
1071 {
1072 if (m_bPlaying)
1073 return wxMEDIASTATE_PLAYING;
1074 else if ( !m_movie || wxQTMediaBackend::GetPosition() == 0 )
1075 return wxMEDIASTATE_STOPPED;
1076 else
1077 return wxMEDIASTATE_PAUSED;
1078 }
1079
1080 //---------------------------------------------------------------------------
1081 // wxQTMediaBackend::Cleanup
1082 //
1083 // Diposes of the movie timer, Disassociates the Movie Controller with
1084 // movie and hides it if it exists, and stops and disposes
1085 // of the QT movie
1086 //---------------------------------------------------------------------------
1087 void wxQTMediaBackend::Cleanup()
1088 {
1089 m_bPlaying = false;
1090
1091 if (m_timer)
1092 {
1093 delete m_timer;
1094 m_timer = NULL;
1095 }
1096
1097 m_lib.StopMovie(m_movie);
1098
1099 if (m_pMC)
1100 {
1101 Point thePoint;
1102 thePoint.h = thePoint.v = 0;
1103 m_lib.MCSetVisible(m_pMC, false);
1104 m_lib.MCSetMovie(m_pMC, NULL, NULL, thePoint);
1105 }
1106
1107 m_lib.DisposeMovie(m_movie);
1108 m_movie = NULL;
1109 }
1110
1111 //---------------------------------------------------------------------------
1112 // wxQTMediaBackend::ShowPlayerControls
1113 //
1114 // Creates a movie controller for the Movie if the user wants it
1115 //---------------------------------------------------------------------------
1116 bool wxQTMediaBackend::ShowPlayerControls(wxMediaCtrlPlayerControls flags)
1117 {
1118 if (m_pMC)
1119 {
1120 // restore old wndproc
1121 wxSetWindowProc((HWND)m_ctrl->GetHWND(), wxWndProc);
1122 m_lib.DisposeMovieController(m_pMC);
1123 m_pMC = NULL;
1124
1125 // movie controller height
1126 m_bestSize.y -= 16;
1127 }
1128
1129 if (flags && m_movie)
1130 {
1131 Rect rect;
1132 wxRect wxrect = m_ctrl->GetClientRect();
1133
1134 // make room for controller
1135 if (wxrect.width < 320)
1136 wxrect.width = 320;
1137
1138 rect.top = (short)wxrect.y;
1139 rect.left = (short)wxrect.x;
1140 rect.right = (short)(rect.left + wxrect.width);
1141 rect.bottom = (short)(rect.top + wxrect.height);
1142
1143 if (!m_pMC)
1144 {
1145 m_pMC = m_lib.NewMovieController(m_movie, &rect, mcTopLeftMovie |
1146 // mcScaleMovieToFit |
1147 // mcWithBadge |
1148 mcWithFrame);
1149 m_lib.MCDoAction(m_pMC, 32, (void*)true); // mcActionSetKeysEnabled
1150 m_lib.MCSetActionFilterWithRefCon(m_pMC,
1151 (WXFARPROC)wxQTMediaBackend::MCFilterProc, (void*)this);
1152 m_bestSize.y += 16; // movie controller height
1153
1154 // By default the movie controller uses its own colour palette
1155 // for the movie which can be bad on some files, so turn it off.
1156 // Also turn off its frame / border for the movie
1157 // Also take care of a couple of the interface flags here
1158 long mcFlags = 0;
1159 m_lib.MCDoAction(m_pMC, 39/*mcActionGetFlags*/, (void*)&mcFlags);
1160
1161 mcFlags |=
1162 // (1<< 0) /*mcFlagSuppressMovieFrame*/ |
1163 (1<< 3) /*mcFlagsUseWindowPalette*/
1164 | ((flags & wxMEDIACTRLPLAYERCONTROLS_STEP)
1165 ? 0 : (1<< 1) /*mcFlagSuppressStepButtons*/)
1166 | ((flags & wxMEDIACTRLPLAYERCONTROLS_VOLUME)
1167 ? 0 : (1<< 2) /*mcFlagSuppressSpeakerButton*/)
1168 // | (1<< 4) /*mcFlagDontInvalidate*/ // if we take care of repainting ourselves
1169 ;
1170
1171 m_lib.MCDoAction(m_pMC, 38/*mcActionSetFlags*/, (void*)mcFlags);
1172
1173 // intercept the wndproc of our control window
1174 wxSetWindowProc((HWND)m_ctrl->GetHWND(), wxQTMediaBackend::QTWndProc);
1175
1176 // set the user data of our window
1177 wxSetWindowUserData((HWND)m_ctrl->GetHWND(), this);
1178 }
1179 }
1180
1181 NotifyMovieSizeChanged();
1182
1183 return m_lib.GetMoviesError() == noErr;
1184 }
1185
1186 //---------------------------------------------------------------------------
1187 // wxQTMediaBackend::MCFilterProc (static)
1188 //
1189 // Callback for when the movie controller recieves a message
1190 //---------------------------------------------------------------------------
1191 Boolean wxQTMediaBackend::MCFilterProc(MovieController WXUNUSED(theController),
1192 short action,
1193 void * WXUNUSED(params),
1194 LONG_PTR refCon)
1195 {
1196 // NB: potential optimisation
1197 // if (action == 1)
1198 // return 0;
1199
1200 wxQTMediaBackend* pThis = (wxQTMediaBackend*)refCon;
1201
1202 switch (action)
1203 {
1204 case 1:
1205 // don't process idle events
1206 break;
1207
1208 case 8:
1209 // play button triggered - MC will set movie to opposite state
1210 // of current - playing ? paused : playing
1211 if (pThis)
1212 pThis->m_bPlaying = !(pThis->m_bPlaying);
1213
1214 // NB: Sometimes it doesn't redraw properly -
1215 // if you click on the button but don't move the mouse
1216 // the button will not change its state until you move
1217 // mcActionDraw and Refresh/Update combo do nothing
1218 // to help this unfortunately
1219 break;
1220
1221 default:
1222 break;
1223 }
1224
1225 return 0;
1226 }
1227
1228 //---------------------------------------------------------------------------
1229 // wxQTMediaBackend::GetVideoSize
1230 //
1231 // Returns the actual size of the QT movie
1232 //---------------------------------------------------------------------------
1233 wxSize wxQTMediaBackend::GetVideoSize() const
1234 {
1235 return m_bestSize;
1236 }
1237
1238 //---------------------------------------------------------------------------
1239 // wxQTMediaBackend::Move
1240 //
1241 // Sets the bounds of either the Movie or Movie Controller
1242 //---------------------------------------------------------------------------
1243 void wxQTMediaBackend::Move(int WXUNUSED(x), int WXUNUSED(y), int w, int h)
1244 {
1245 if (m_movie)
1246 {
1247 // make room for controller
1248 if (m_pMC)
1249 {
1250 if (w < 320)
1251 w = 320;
1252
1253 Rect theRect = {0, 0, (short)h, (short)w};
1254 m_lib.MCSetControllerBoundsRect(m_pMC, &theRect);
1255 }
1256 else
1257 {
1258 Rect theRect = {0, 0, (short)h, (short)w};
1259 m_lib.SetMovieBox(m_movie, &theRect);
1260 }
1261
1262 wxASSERT(m_lib.GetMoviesError() == noErr);
1263 }
1264 }
1265
1266 //---------------------------------------------------------------------------
1267 // wxQTMediaBackend::OnEraseBackground
1268 //
1269 // Suggestion from Greg Hazel to repaint the movie when idle
1270 // (on pause also)
1271 //
1272 // TODO: We may be repainting too much here - under what exact circumstances
1273 // do we need this? I think Move also repaints correctly for the Movie
1274 // Controller, so in that instance we don't need this either
1275 //---------------------------------------------------------------------------
1276 void wxQTMediaEvtHandler::OnEraseBackground(wxEraseEvent& evt)
1277 {
1278 wxQuickTimeLibrary& m_pLib = m_qtb->m_lib;
1279
1280 if ( m_qtb->m_pMC )
1281 {
1282 // repaint movie controller
1283 m_pLib.MCDoAction(m_qtb->m_pMC, 2 /*mcActionDraw*/,
1284 m_pLib.GetNativeWindowPort(m_hwnd));
1285 }
1286 else if ( m_qtb->m_movie )
1287 {
1288 // no movie controller
1289 CGrafPtr port = (CGrafPtr)m_pLib.GetNativeWindowPort(m_hwnd);
1290
1291 m_pLib.BeginUpdate(port);
1292 m_pLib.UpdateMovie(m_qtb->m_movie);
1293 wxASSERT(m_pLib.GetMoviesError() == noErr);
1294 m_pLib.EndUpdate(port);
1295 }
1296 else
1297 {
1298 // no movie
1299 // let the system repaint the window
1300 evt.Skip();
1301 }
1302 }
1303
1304 //---------------------------------------------------------------------------
1305 // End QT Backend
1306 //---------------------------------------------------------------------------
1307
1308 // in source file that contains stuff you don't directly use
1309 #include "wx/html/forcelnk.h"
1310 FORCE_LINK_ME(wxmediabackend_qt)
1311
1312 #endif // wxUSE_MEDIACTRL && wxUSE_ACTIVEX
wxWidgets (Impactor)