utils/wxMMedia/cdbase.h

   1 // -*- c++ -*-
   2 // /////////////////////////////////////////////////////////////////////////////
   3 // Name:       cdbase.h
   4 // Purpose:    wxMMedia
   5 // Author:     Guilhem Lavaux
   6 // Created:    1997
   7 // Updated:    1998
   8 // Copyright:  (C) 1997, 1998, Guilhem Lavaux
   9 // License:    wxWindows license
  10 // /////////////////////////////////////////////////////////////////////////////
  11 #ifndef __CDA_base_H__
  12 #define __CDA_base_H__
  13
  14 #ifdef __GNUG__
  15 #pragma interface
  16 #endif
  17
  18 #ifdef WX_PRECOMP
  19 #include "wx_prec.h"
  20 #else
  21 #include "wx/wx.h"
  22 #endif
  23 #include "mmtype.h"
  24
  25 typedef struct wxCDtime {
  26   wxUint8 track;
  27   wxUint8 hour, min, sec;
  28 } wxCDtime;
  29
  30 ///
  31 class WXDLLEXPORT wxCDAudio : public wxObject {
  32   DECLARE_ABSTRACT_CLASS(wxCDAudio)
  33 public:
  34   ///
  35   typedef enum { PLAYING, PAUSED, STOPPED } CDstatus;
  36   /// Table of contents manager
  37   class CDtoc {
  38   protected:
  39     wxCDtime *tracks_time, *tracks_pos;
  40     wxCDtime total_time;
  41   public:
  42     ///
  43     CDtoc(wxCDtime& tot_tm, wxCDtime *trks_tm, wxCDtime *trks_pos)
  44       { tracks_time = trks_tm; total_time = tot_tm; tracks_pos = trks_pos; }
  45
  46     /// Returns the length of the specified track
  47     /** @param track track to get length */
  48     wxCDtime GetTrackTime(wxUint8 track) const;
  49     /** Returns the position of the specified
  50         @param track track to get position */
  51     wxCDtime GetTrackPos(wxUint8 track) const;
  52     /// Returns the total time
  53     inline wxCDtime GetTotalTime() const { return total_time; }
  54   };
  55 public:
  56   ///
  57   wxCDAudio() : wxObject() {}
  58   ///
  59   virtual ~wxCDAudio() {}
  60
  61   /// Play audio at the specified position
  62   /**
  63    * @param beg_play start position
  64    * @param end_play end position
  65    */
  66   virtual bool Play(const wxCDtime& beg_play, const wxCDtime& end_play) = 0;
  67   /// Play audio from the specified to the end of the CD audio
  68   /**
  69    * @param beg_play start position
  70    */
  71   bool Play(const wxCDtime& beg_play);
  72   ///
  73   bool Play(wxUint8 beg_track, wxUint8 end_track = 0);
  74   /// Pause the audio playing
  75   virtual bool Pause() = 0;
  76   /// Resume a paused audio playing
  77   virtual bool Resume() = 0;
  78   /// Get the current CD status
  79   virtual CDstatus GetStatus() = 0;
  80   /// Get the current playing time
  81   virtual wxCDtime GetTime() = 0;
  82   /// Returns the table of contents
  83   virtual const CDtoc& GetToc() = 0;
  84   /// CD ok
  85   virtual bool Ok() const = 0;
  86 };
  87
  88 #endif