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