//| Copyright: (C) 2019-2020 Kevin Larke <contact AT larke DOT org> 
//| License: GNU GPL version 3.0 or above. See the accompanying LICENSE file.
#ifndef tlCtl_h
#define tlCtl_h

class Fl_Menu_Bar;
class cmGrTlFltk;
class cmGrScFltk;
class cmGrTksbFltk;
class cmGrTksrFltk;
class cmGr2dFltk;
class tlStatusWnd;
class tlCtl;

class tlCtlRspdr
{
public:
  virtual ~tlCtlRspdr(){}
  virtual void tlCtlNewTimeLineFile( tlCtl* tlCtl, const cmChar_t* fn ) = 0;
  virtual void tlCtlNewScoreFile(    tlCtl* tlCtl, const cmChar_t* fn ) = 0;
  
};

class tlCtl : public cmdIfRspdr
{
public:
  tlCtl( cmCtx_t* ctx, Fl_Window* app, Fl_Menu_Bar* menuBar, tlCtlRspdr* rspdr );
  virtual ~tlCtl();

  // 
  // This group of functions represent commands from the application (kcApp) to the
  // time-line control.
  //

  Fl_Widget* initTimeLineCtlr(    int x, int y, int w, int h );
  Fl_Widget* initScoreCtlr(       int x, int y, int w, int h );
  Fl_Widget* initTakeSeqBldrCtlr( int x, int y, int w, int h ); 
  Fl_Widget* initTakeSeqRendCtlr( int x, int y, int w, int h );
  Fl_Widget* init2dCtlr(          int x, int y, int w, int h ); 

  void openTlFile( const cmChar_t* fn );
  void openScoreFile( const cmChar_t* fn );
  void openTakeSeqBldr( void* v );
  void openTakeSeqRend( void* v );
  void setAudioFilePath( const cmChar_t* path );
  void setAudioFileCursor( unsigned smpIdx );
  void setTimeLineSelectBar( unsigned barNumb );
  void setScoreSelectBar( unsigned barNumb );

  // Set the currrent score location
  void setScoreLocation( unsigned locIdx, unsigned smpIdx, unsigned pitch, unsigned vel );

  // Set the value of a score variable.
  void setScoreVarValue( unsigned locIdx, unsigned varId, double value );

  // Set the performed dynamic level of a score event.
  void setScoreDynLevel( unsigned evtIdx, unsigned dynLvl );

  void refreshTakeSeqRend();

  void onIdle();

  
  //
  // cmdIfRspdr Interface
  //
  // These functions are callbacks from cmdIf to communicate 
  // from cmdIf processes to the UI or back to the engine.
 
  virtual void cmdIfShowStatusMsg( const char* msg );
  virtual void cmdIfHideStatus();
  virtual void cmdIfErrorMsg( const char* msg );
  virtual void cmdIfTimeLineMsg( const void* msg, unsigned msgByteCnt );
  virtual void cmdIfAudioFileLoad( unsigned fileId );
  virtual void cmdIfScoreMsg(    const void* msg, unsigned msgByteCnt );
  virtual void cmdIfOnTimeLineMarkerSelect( unsigned markerId );
  virtual void cmdIfOnTimeLineMidiEvtSelect(unsigned midiEvtId );
  virtual void cmdIfOnScoreBarSelect(       unsigned scoreIndex );

  unsigned timeLineSelectedMarkerId() const;
  unsigned scoreSelectedEleIndex() const;
  unsigned tksbSelectedEleIndex() const;
  
  void testStub();

private:
  cmErr_t         _err;
  cmCtx_t*        _ctx;
  tlCtlRspdr*     _rspdr;
  cmdIf*          _cmdIf;
  cmGrTlFltk*     _tlCtlr;
  cmGrScFltk*     _scCtlr;
  cmGrTksbFltk*   _tksbCtlr;
  cmGrTksrFltk*   _tksrCtlr;
  cmGr2dFltk*     _2dCtlr;
  tlStatusWnd*    _statusWnd;
  Fl_Menu_Bar*    _menu;
};


#endif