include/wx/mediactrl.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/mediactrl.h
   3 // Purpose:     wxMediaCtrl class
   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 // ============================================================================
  13 // Definitions
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // Header guard
  18 // ----------------------------------------------------------------------------
  19 #ifndef _WX_MEDIACTRL_H_
  20 #define _WX_MEDIACTRL_H_
  21
  22 // ----------------------------------------------------------------------------
  23 // Pre-compiled header stuff
  24 // ----------------------------------------------------------------------------
  25 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  26 #pragma interface "mediactrl.h"
  27 #endif
  28
  29 #include "wx/defs.h"
  30
  31 // ----------------------------------------------------------------------------
  32 // Compilation guard
  33 // ----------------------------------------------------------------------------
  34
  35 #if wxUSE_MEDIACTRL
  36
  37 // ----------------------------------------------------------------------------
  38 // Includes
  39 // ----------------------------------------------------------------------------
  40
  41 #include "wx/control.h"
  42 #include "wx/uri.h"
  43
  44 // ============================================================================
  45 // Declarations
  46 // ============================================================================
  47
  48 // ----------------------------------------------------------------------------
  49 //
  50 // Enumerations
  51 //
  52 // ----------------------------------------------------------------------------
  53
  54 enum wxMediaState
  55 {
  56     wxMEDIASTATE_STOPPED,
  57     wxMEDIASTATE_PAUSED,
  58     wxMEDIASTATE_PLAYING
  59 };
  60
  61 #define wxMEDIABACKEND_DIRECTSHOW   wxT("wxAMMediaBackend")
  62 #define wxMEDIABACKEND_MCI          wxT("wxMCIMediaBackend")
  63 #define wxMEDIABACKEND_QUICKTIME    wxT("wxQTMediaBackend")
  64 #define wxMEDIABACKEND_GSTREAMER    wxT("wxGStreamerMediaBackend")
  65
  66 // ----------------------------------------------------------------------------
  67 //
  68 // wxMediaEvent
  69 //
  70 // ----------------------------------------------------------------------------
  71
  72 class WXDLLIMPEXP_MEDIA wxMediaEvent : public wxNotifyEvent
  73 {
  74 public:
  75     // ------------------------------------------------------------------------
  76     // wxMediaEvent Constructor
  77     //
  78     // Normal constructor, much the same as wxNotifyEvent
  79     // ------------------------------------------------------------------------
  80     wxMediaEvent(wxEventType commandType = wxEVT_NULL, int winid = 0)
  81         : wxNotifyEvent(commandType, winid)
  82     {                                       }
  83
  84     // ------------------------------------------------------------------------
  85     // wxMediaEvent Copy Constructor
  86     //
  87     // Normal copy constructor, much the same as wxNotifyEvent
  88     // ------------------------------------------------------------------------
  89     wxMediaEvent(const wxMediaEvent &clone)
  90             : wxNotifyEvent(clone)
  91     {                                       }
  92
  93     // ------------------------------------------------------------------------
  94     // wxMediaEvent::Clone
  95     //
  96     // Allocates a copy of this object.
  97     // Required for wxEvtHandler::AddPendingEvent
  98     // ------------------------------------------------------------------------
  99     virtual wxEvent *Clone() const
 100     {   return new wxMediaEvent(*this);     }
 101
 102
 103     // Put this class on wxWidget's RTTI table
 104     DECLARE_DYNAMIC_CLASS(wxMediaEvent)
 105 };
 106
 107 // ----------------------------------------------------------------------------
 108 //
 109 // wxMediaCtrl
 110 //
 111 // ----------------------------------------------------------------------------
 112
 113 class WXDLLIMPEXP_MEDIA wxMediaCtrl : public wxControl
 114 {
 115 public:
 116     wxMediaCtrl() : m_imp(NULL), m_bLoaded(false)
 117     {                                                                   }
 118
 119     wxMediaCtrl(wxWindow* parent, wxWindowID winid,
 120                 const wxString& fileName = wxEmptyString,
 121                 const wxPoint& pos = wxDefaultPosition,
 122                 const wxSize& size = wxDefaultSize,
 123                 long style = 0,
 124                 const wxString& szBackend = wxEmptyString,
 125                 const wxValidator& validator = wxDefaultValidator,
 126                 const wxString& name = wxT("mediaCtrl"))
 127                 : m_imp(NULL), m_bLoaded(false)
 128     {   Create(parent, winid, fileName, pos, size, style,
 129                szBackend, validator, name);                             }
 130
 131     wxMediaCtrl(wxWindow* parent, wxWindowID winid,
 132                 const wxURI& location,
 133                 const wxPoint& pos = wxDefaultPosition,
 134                 const wxSize& size = wxDefaultSize,
 135                 long style = 0,
 136                 const wxString& szBackend = wxEmptyString,
 137                 const wxValidator& validator = wxDefaultValidator,
 138                 const wxString& name = wxT("mediaCtrl"))
 139                 : m_imp(NULL), m_bLoaded(false)
 140     {   Create(parent, winid, location, pos, size, style,
 141                szBackend, validator, name);                             }
 142
 143     ~wxMediaCtrl();
 144
 145     bool Create(wxWindow* parent, wxWindowID winid,
 146                 const wxString& fileName = wxEmptyString,
 147                 const wxPoint& pos = wxDefaultPosition,
 148                 const wxSize& size = wxDefaultSize,
 149                 long style = 0,
 150                 const wxString& szBackend = wxEmptyString,
 151                 const wxValidator& validator = wxDefaultValidator,
 152                 const wxString& name = wxT("mediaCtrl"));
 153
 154     bool Create(wxWindow* parent, wxWindowID winid,
 155                 const wxURI& location,
 156                 const wxPoint& pos = wxDefaultPosition,
 157                 const wxSize& size = wxDefaultSize,
 158                 long style = 0,
 159                 const wxString& szBackend = wxEmptyString,
 160                 const wxValidator& validator = wxDefaultValidator,
 161                 const wxString& name = wxT("mediaCtrl")); //DirectShow only
 162
 163     bool DoCreate(wxClassInfo* instance,
 164                 wxWindow* parent, wxWindowID winid,
 165                 const wxPoint& pos = wxDefaultPosition,
 166                 const wxSize& size = wxDefaultSize,
 167                 long style = 0,
 168                 const wxValidator& validator = wxDefaultValidator,
 169                 const wxString& name = wxT("mediaCtrl"));
 170
 171     bool Play();
 172     bool Pause();
 173     bool Stop();
 174
 175     bool Load(const wxString& fileName);
 176
 177
 178     wxMediaState GetState();
 179
 180     wxFileOffset Seek(wxFileOffset where, wxSeekMode mode = wxFromStart);
 181     wxFileOffset Tell(); //FIXME: This should be const
 182     wxFileOffset Length(); //FIXME: This should be const
 183
 184     //
 185     // Unofficial parts of API
 186     //
 187     //DirectShow/GStreamer only.  Quicktime too, but somewhat buggy...
 188     bool Load(const wxURI& location);
 189
 190     double GetPlaybackRate();           //All but MCI & GStreamer
 191     bool SetPlaybackRate(double dRate); //All but MCI & GStreamer
 192
 193 protected:
 194     static wxClassInfo* NextBackend();
 195
 196     void OnMediaFinished(wxMediaEvent& evt);
 197     virtual void DoMoveWindow(int x, int y, int w, int h);
 198     wxSize DoGetBestSize() const;
 199
 200     //FIXME:  This is nasty... find a better way to work around
 201     //inheritance issues
 202 #ifdef __WXMAC__
 203     friend class wxQTMediaBackend;
 204 #endif
 205 #ifdef __WXCOCOA__
 206     friend class wxQTMediaBackend;
 207 #endif
 208     class wxMediaBackend* m_imp;
 209     bool m_bLoaded;
 210
 211     DECLARE_DYNAMIC_CLASS(wxMediaCtrl)
 212 };
 213
 214 // ----------------------------------------------------------------------------
 215 //
 216 // wxMediaBackend
 217 //
 218 // Currently an internal class - API stability not guaranteed.
 219 //
 220 // ----------------------------------------------------------------------------
 221
 222 class WXDLLIMPEXP_MEDIA wxMediaBackend : public wxObject
 223 {
 224 public:
 225     wxMediaBackend()
 226     {                                   }
 227
 228     virtual ~wxMediaBackend();
 229
 230     virtual bool CreateControl(wxControl* WXUNUSED(ctrl),
 231                                wxWindow* WXUNUSED(parent),
 232                                wxWindowID WXUNUSED(winid),
 233                                const wxPoint& WXUNUSED(pos),
 234                                const wxSize& WXUNUSED(size),
 235                                long WXUNUSED(style),
 236                                const wxValidator& WXUNUSED(validator),
 237                                const wxString& WXUNUSED(name))
 238     {   return false;                   }
 239
 240     virtual bool Play()
 241     {   return false;                   }
 242     virtual bool Pause()
 243     {   return false;                   }
 244     virtual bool Stop()
 245     {   return false;                   }
 246
 247     virtual bool Load(const wxString& WXUNUSED(fileName))
 248     {   return false;                   }
 249     virtual bool Load(const wxURI& WXUNUSED(location))
 250     {   return false;                   }
 251
 252     virtual bool SetPosition(wxLongLong WXUNUSED(where))
 253     {   return 0;                       }
 254     virtual wxLongLong GetPosition()
 255     {   return 0;                       }
 256     virtual wxLongLong GetDuration()
 257     {   return 0;                       }
 258
 259     virtual void Move(int WXUNUSED(x), int WXUNUSED(y),
 260                       int WXUNUSED(w), int WXUNUSED(h))
 261     {                                   }
 262     virtual wxSize GetVideoSize() const
 263     {   return wxSize(0,0);             }
 264
 265     virtual double GetPlaybackRate()
 266     {   return 0.0;                     }
 267     virtual bool SetPlaybackRate(double WXUNUSED(dRate))
 268     {   return false;                   }
 269
 270     virtual wxMediaState GetState()
 271     {   return wxMEDIASTATE_STOPPED;    }
 272
 273     DECLARE_DYNAMIC_CLASS(wxMediaBackend)
 274 };
 275
 276 //Event ID to give to our events
 277 #define wxMEDIA_FINISHED_ID    13000
 278 #define wxMEDIA_STOP_ID    13001
 279
 280 //Define our event types - we need to call DEFINE_EVENT_TYPE(EVT) later
 281 DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_MEDIA, wxEVT_MEDIA_FINISHED, wxMEDIA_FINISHED_ID)
 282 DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_MEDIA, wxEVT_MEDIA_STOP,     wxMEDIA_STOP_ID)
 283
 284 //Function type(s) our events need
 285 typedef void (wxEvtHandler::*wxMediaEventFunction)(wxMediaEvent&);
 286
 287 #define wxMediaEventHandler(func) \
 288     (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxMediaEventFunction, &func)
 289
 290 //Macro for usage with message maps
 291 #define EVT_MEDIA_FINISHED(winid, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_MEDIA_FINISHED, winid, wxID_ANY, wxMediaEventHandler(fn), (wxObject *) NULL ),
 292 #define EVT_MEDIA_STOP(winid, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_MEDIA_STOP, winid, wxID_ANY, wxMediaEventHandler(fn), (wxObject *) NULL ),
 293
 294 // ----------------------------------------------------------------------------
 295 // End compilation gaurd
 296 // ----------------------------------------------------------------------------
 297 #endif // wxUSE_MEDIACTRL
 298
 299 // ----------------------------------------------------------------------------
 300 // End header guard and header itself
 301 // ----------------------------------------------------------------------------
 302 #endif // _WX_MEDIACTRL_H_
 303
 304