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1/////////////////////////////////////////////////////////////////////////////
2// Name: src/common/mediactrl.cpp
3// Purpose: wxMediaCtrl common code
4// Author: Ryan Norton <wxprojects@comcast.net>
5// Modified by:
6// Created: 11/07/04
7// RCS-ID: $Id$
8// Copyright: (c) Ryan Norton
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// TODO: Platform specific backend defaults?
13
14//===========================================================================
15// Definitions
16//===========================================================================
17
18//---------------------------------------------------------------------------
19// Pre-compiled header stuff
20//---------------------------------------------------------------------------
21
22#include "wx/wxprec.h"
23
24#ifdef __BORLANDC__
25 #pragma hdrstop
26#endif
27
28#if wxUSE_MEDIACTRL
29
30#ifndef WX_PRECOMP
31 #include "wx/hash.h"
32#endif
33
34//---------------------------------------------------------------------------
35// Includes
36//---------------------------------------------------------------------------
37#include "wx/mediactrl.h"
38
39//===========================================================================
40//
41// Implementation
42//
43//===========================================================================
44
45//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
46// RTTI and Event implementations
47//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
48
49IMPLEMENT_CLASS(wxMediaCtrl, wxControl)
50DEFINE_EVENT_TYPE(wxEVT_MEDIA_STATECHANGED)
51DEFINE_EVENT_TYPE(wxEVT_MEDIA_PLAY)
52DEFINE_EVENT_TYPE(wxEVT_MEDIA_PAUSE)
53IMPLEMENT_CLASS(wxMediaBackend, wxObject)
54IMPLEMENT_DYNAMIC_CLASS(wxMediaEvent, wxEvent)
55DEFINE_EVENT_TYPE(wxEVT_MEDIA_FINISHED)
56DEFINE_EVENT_TYPE(wxEVT_MEDIA_LOADED)
57DEFINE_EVENT_TYPE(wxEVT_MEDIA_STOP)
58
59//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
60//
61// wxMediaCtrl
62//
63//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
64
65//---------------------------------------------------------------------------
66// wxMediaBackend Destructor
67//
68// This is here because the DARWIN gcc compiler badly screwed up and
69// needs the destructor implementation in the source
70//---------------------------------------------------------------------------
71wxMediaBackend::~wxMediaBackend()
72{
73}
74
75//---------------------------------------------------------------------------
76// wxMediaCtrl::Create (file version)
77// wxMediaCtrl::Create (URL version)
78//
79// Searches for a backend that is installed on the system (backends
80// starting with lower characters in the alphabet are given priority),
81// and creates the control from it
82//
83// This searches by searching the global RTTI hashtable, class by class,
84// attempting to call CreateControl on each one found that is a derivative
85// of wxMediaBackend - if it succeeded Create returns true, otherwise
86// it keeps iterating through the hashmap.
87//---------------------------------------------------------------------------
88bool wxMediaCtrl::Create(wxWindow* parent, wxWindowID id,
89 const wxString& fileName,
90 const wxPoint& pos,
91 const wxSize& size,
92 long style,
93 const wxString& szBackend,
94 const wxValidator& validator,
95 const wxString& name)
96{
97 if(!szBackend.empty())
98 {
99 wxClassInfo* pClassInfo = wxClassInfo::FindClass(szBackend);
100
101 if(!pClassInfo || !DoCreate(pClassInfo, parent, id,
102 pos, size, style, validator, name))
103 {
104 m_imp = NULL;
105 return false;
106 }
107
108 if (!fileName.empty())
109 {
110 if (!Load(fileName))
111 {
112 delete m_imp;
113 m_imp = NULL;
114 return false;
115 }
116 }
117
118 SetInitialSize(size);
119 return true;
120 }
121 else
122 {
123 wxClassInfo::sm_classTable->BeginFind();
124
125 wxClassInfo* classInfo;
126
127 while((classInfo = NextBackend()) != NULL)
128 {
129 if(!DoCreate(classInfo, parent, id,
130 pos, size, style, validator, name))
131 continue;
132
133 if (!fileName.empty())
134 {
135 if (Load(fileName))
136 {
137 SetInitialSize(size);
138 return true;
139 }
140 else
141 delete m_imp;
142 }
143 else
144 {
145 SetInitialSize(size);
146 return true;
147 }
148 }
149
150 m_imp = NULL;
151 return false;
152 }
153}
154
155bool wxMediaCtrl::Create(wxWindow* parent, wxWindowID id,
156 const wxURI& location,
157 const wxPoint& pos,
158 const wxSize& size,
159 long style,
160 const wxString& szBackend,
161 const wxValidator& validator,
162 const wxString& name)
163{
164 if(!szBackend.empty())
165 {
166 wxClassInfo* pClassInfo = wxClassInfo::FindClass(szBackend);
167 if(!pClassInfo || !DoCreate(pClassInfo, parent, id,
168 pos, size, style, validator, name))
169 {
170 m_imp = NULL;
171 return false;
172 }
173
174 if (!Load(location))
175 {
176 delete m_imp;
177 m_imp = NULL;
178 return false;
179 }
180
181 SetInitialSize(size);
182 return true;
183 }
184 else
185 {
186 wxClassInfo::sm_classTable->BeginFind();
187
188 wxClassInfo* classInfo;
189
190 while((classInfo = NextBackend()) != NULL)
191 {
192 if(!DoCreate(classInfo, parent, id,
193 pos, size, style, validator, name))
194 continue;
195
196 if (Load(location))
197 {
198 SetInitialSize(size);
199 return true;
200 }
201 else
202 delete m_imp;
203 }
204
205 m_imp = NULL;
206 return false;
207 }
208}
209
210//---------------------------------------------------------------------------
211// wxMediaCtrl::DoCreate
212//
213// Attempts to create the control from a backend
214//---------------------------------------------------------------------------
215bool wxMediaCtrl::DoCreate(wxClassInfo* classInfo,
216 wxWindow* parent, wxWindowID id,
217 const wxPoint& pos,
218 const wxSize& size,
219 long style,
220 const wxValidator& validator,
221 const wxString& name)
222{
223 m_imp = (wxMediaBackend*)classInfo->CreateObject();
224
225 if( m_imp->CreateControl(this, parent, id, pos, size,
226 style, validator, name) )
227 {
228 return true;
229 }
230
231 delete m_imp;
232 return false;
233}
234
235//---------------------------------------------------------------------------
236// wxMediaCtrl::NextBackend (static)
237//
238//
239// Search through the RTTI hashmap one at a
240// time, attempting to create each derivative
241// of wxMediaBackend
242//
243//
244// STL isn't compatible with and will have a compilation error
245// on a wxNode, however, wxHashTable::compatibility_iterator is
246// incompatible with the old 2.4 stable version - but since
247// we're in 2.5+ only we don't need to worry about the new version
248//---------------------------------------------------------------------------
249wxClassInfo* wxMediaCtrl::NextBackend()
250{
251 wxHashTable::compatibility_iterator
252 node = wxClassInfo::sm_classTable->Next();
253 while (node)
254 {
255 wxClassInfo* classInfo = (wxClassInfo *)node->GetData();
256 if ( classInfo->IsKindOf(CLASSINFO(wxMediaBackend)) &&
257 classInfo != CLASSINFO(wxMediaBackend) )
258 {
259 return classInfo;
260 }
261 node = wxClassInfo::sm_classTable->Next();
262 }
263
264 //
265 // Nope - couldn't successfully find one... fail
266 //
267 return NULL;
268}
269
270
271//---------------------------------------------------------------------------
272// wxMediaCtrl Destructor
273//
274// Free up the backend if it exists
275//---------------------------------------------------------------------------
276wxMediaCtrl::~wxMediaCtrl()
277{
278 if (m_imp)
279 delete m_imp;
280}
281
282//---------------------------------------------------------------------------
283// wxMediaCtrl::Load (file version)
284// wxMediaCtrl::Load (URL version)
285// wxMediaCtrl::Load (URL & Proxy version)
286// wxMediaCtrl::Load (wxInputStream version)
287//
288// Here we call load of the backend - keeping
289// track of whether it was successful or not - which
290// will determine which later method calls work
291//---------------------------------------------------------------------------
292bool wxMediaCtrl::Load(const wxString& fileName)
293{
294 if(m_imp)
295 return (m_bLoaded = m_imp->Load(fileName));
296 return false;
297}
298
299bool wxMediaCtrl::Load(const wxURI& location)
300{
301 if(m_imp)
302 return (m_bLoaded = m_imp->Load(location));
303 return false;
304}
305
306bool wxMediaCtrl::Load(const wxURI& location, const wxURI& proxy)
307{
308 if(m_imp)
309 return (m_bLoaded = m_imp->Load(location, proxy));
310 return false;
311}
312
313//---------------------------------------------------------------------------
314// wxMediaCtrl::Play
315// wxMediaCtrl::Pause
316// wxMediaCtrl::Stop
317// wxMediaCtrl::GetPlaybackRate
318// wxMediaCtrl::SetPlaybackRate
319// wxMediaCtrl::Seek --> SetPosition
320// wxMediaCtrl::Tell --> GetPosition
321// wxMediaCtrl::Length --> GetDuration
322// wxMediaCtrl::GetState
323// wxMediaCtrl::DoGetBestSize
324// wxMediaCtrl::SetVolume
325// wxMediaCtrl::GetVolume
326// wxMediaCtrl::ShowInterface
327// wxMediaCtrl::GetDownloadProgress
328// wxMediaCtrl::GetDownloadTotal
329//
330// 1) Check to see whether the backend exists and is loading
331// 2) Call the backend's version of the method, returning success
332// if the backend's version succeeds
333//---------------------------------------------------------------------------
334bool wxMediaCtrl::Play()
335{
336 if(m_imp && m_bLoaded)
337 return m_imp->Play();
338 return 0;
339}
340
341bool wxMediaCtrl::Pause()
342{
343 if(m_imp && m_bLoaded)
344 return m_imp->Pause();
345 return 0;
346}
347
348bool wxMediaCtrl::Stop()
349{
350 if(m_imp && m_bLoaded)
351 return m_imp->Stop();
352 return 0;
353}
354
355double wxMediaCtrl::GetPlaybackRate()
356{
357 if(m_imp && m_bLoaded)
358 return m_imp->GetPlaybackRate();
359 return 0;
360}
361
362bool wxMediaCtrl::SetPlaybackRate(double dRate)
363{
364 if(m_imp && m_bLoaded)
365 return m_imp->SetPlaybackRate(dRate);
366 return false;
367}
368
369wxFileOffset wxMediaCtrl::Seek(wxFileOffset where, wxSeekMode mode)
370{
371 wxFileOffset offset;
372
373 switch (mode)
374 {
375 case wxFromStart:
376 offset = where;
377 break;
378 case wxFromEnd:
379 offset = Length() - where;
380 break;
381// case wxFromCurrent:
382 default:
383 offset = Tell() + where;
384 break;
385 }
386
387 if(m_imp && m_bLoaded && m_imp->SetPosition(offset))
388 return offset;
389 return wxInvalidOffset;
390}
391
392wxFileOffset wxMediaCtrl::Tell()
393{
394 if(m_imp && m_bLoaded)
395 return (wxFileOffset) m_imp->GetPosition().ToLong();
396 return wxInvalidOffset;
397}
398
399wxFileOffset wxMediaCtrl::Length()
400{
401 if(m_imp && m_bLoaded)
402 return (wxFileOffset) m_imp->GetDuration().ToLong();
403 return wxInvalidOffset;
404}
405
406wxMediaState wxMediaCtrl::GetState()
407{
408 if(m_imp && m_bLoaded)
409 return m_imp->GetState();
410 return wxMEDIASTATE_STOPPED;
411}
412
413wxSize wxMediaCtrl::DoGetBestSize() const
414{
415 if(m_imp)
416 return m_imp->GetVideoSize();
417 return wxSize(0,0);
418}
419
420double wxMediaCtrl::GetVolume()
421{
422 if(m_imp && m_bLoaded)
423 return m_imp->GetVolume();
424 return 0.0;
425}
426
427bool wxMediaCtrl::SetVolume(double dVolume)
428{
429 if(m_imp && m_bLoaded)
430 return m_imp->SetVolume(dVolume);
431 return false;
432}
433
434bool wxMediaCtrl::ShowPlayerControls(wxMediaCtrlPlayerControls flags)
435{
436 if(m_imp)
437 return m_imp->ShowPlayerControls(flags);
438 return false;
439}
440
441wxFileOffset wxMediaCtrl::GetDownloadProgress()
442{
443 if(m_imp && m_bLoaded)
444 return (wxFileOffset) m_imp->GetDownloadProgress().ToLong();
445 return wxInvalidOffset;
446}
447
448wxFileOffset wxMediaCtrl::GetDownloadTotal()
449{
450 if(m_imp && m_bLoaded)
451 return (wxFileOffset) m_imp->GetDownloadTotal().ToLong();
452 return wxInvalidOffset;
453}
454
455//---------------------------------------------------------------------------
456// wxMediaCtrl::DoMoveWindow
457//
458// 1) Call parent's version so that our control's window moves where
459// it's supposed to
460// 2) If the backend exists and is loaded, move the video
461// of the media to where our control's window is now located
462//---------------------------------------------------------------------------
463void wxMediaCtrl::DoMoveWindow(int x, int y, int w, int h)
464{
465 wxControl::DoMoveWindow(x,y,w,h);
466
467 if(m_imp)
468 m_imp->Move(x, y, w, h);
469}
470
471//---------------------------------------------------------------------------
472// wxMediaCtrl::MacVisibilityChanged
473//---------------------------------------------------------------------------
474#ifdef __WXMAC__
475void wxMediaCtrl::MacVisibilityChanged()
476{
477 wxControl::MacVisibilityChanged();
478
479 if(m_imp)
480 m_imp->MacVisibilityChanged();
481}
482#endif
483
484//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
485//
486// wxMediaBackendCommonBase
487//
488//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
489
490void wxMediaBackendCommonBase::NotifyMovieSizeChanged()
491{
492 // our best size changed after opening a new file
493 m_ctrl->InvalidateBestSize();
494 m_ctrl->SetSize(m_ctrl->GetSize());
495
496 // if the parent of the control has a sizer ask it to refresh our size
497 wxWindow * const parent = m_ctrl->GetParent();
498 if ( parent->GetSizer() )
499 {
500 m_ctrl->GetParent()->Layout();
501 m_ctrl->GetParent()->Refresh();
502 m_ctrl->GetParent()->Update();
503 }
504}
505
506void wxMediaBackendCommonBase::NotifyMovieLoaded()
507{
508 NotifyMovieSizeChanged();
509
510 // notify about movie being fully loaded
511 QueueEvent(wxEVT_MEDIA_LOADED);
512}
513
514bool wxMediaBackendCommonBase::SendStopEvent()
515{
516 wxMediaEvent theEvent(wxEVT_MEDIA_STOP, m_ctrl->GetId());
517
518 return !m_ctrl->ProcessEvent(theEvent) || theEvent.IsAllowed();
519}
520
521void wxMediaBackendCommonBase::QueueEvent(wxEventType evtType)
522{
523 wxMediaEvent theEvent(evtType, m_ctrl->GetId());
524 m_ctrl->AddPendingEvent(theEvent);
525}
526
527void wxMediaBackendCommonBase::QueuePlayEvent()
528{
529 QueueEvent(wxEVT_MEDIA_STATECHANGED);
530 QueueEvent(wxEVT_MEDIA_PLAY);
531}
532
533void wxMediaBackendCommonBase::QueuePauseEvent()
534{
535 QueueEvent(wxEVT_MEDIA_STATECHANGED);
536 QueueEvent(wxEVT_MEDIA_PAUSE);
537}
538
539void wxMediaBackendCommonBase::QueueStopEvent()
540{
541 QueueEvent(wxEVT_MEDIA_STATECHANGED);
542 QueueEvent(wxEVT_MEDIA_STOP);
543}
544
545
546//
547// Force link default backends in -
548// see http://wiki.wxwidgets.org/wiki.pl?RTTI
549//
550#include "wx/html/forcelnk.h"
551
552#ifdef __WXMSW__ // MSW has huge backends so we do it seperately
553FORCE_LINK(wxmediabackend_am)
554FORCE_LINK(wxmediabackend_wmp10)
555#else
556FORCE_LINK(basewxmediabackends)
557#endif
558
559#endif //wxUSE_MEDIACTRL