/*

     File: MIDIControlHandler.h

 Abstract: Part of CoreAudio Utility Classes

  Version: 1.0.1

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*/

#ifndef __MIDICONTROLHANDLER_H__

#define __MIDICONTROLHANDLER_H__

#include <CoreAudio/CoreAudio.h>

/*! Abstract interface base class for classes which handle all incoming MIDI data */

class MIDIControlHandler

{

public:

    virtual         ~MIDIControlHandler() {}

    virtual void    Reset() = 0;                                //! Restore all state to defaults

    virtual bool    SetProgramChange(UInt16 inProgram) = 0;

    virtual bool    SetPitchWheel(UInt16 inValue) = 0;

    virtual bool    SetChannelPressure(UInt8 inValue) = 0;

    virtual bool    SetPolyPressure(UInt8 inKey, UInt8 inValue) = 0;

    virtual bool    SetController(UInt8 inControllerNumber, UInt8 inValue) = 0;

    virtual bool    SetSysex(void *inSysexMsg) = 0;

    virtual float   GetPitchBend() const = 0;

    /*! Default controller values.  These represent MSB values unless indicated in the name */

    enum

    {

        kDefault_Midpoint               = 0x40,     //! Used for all center-null-point controllers

        kDefault_Volume             = 100,

        kDefault_Pan                    = kDefault_Midpoint,

        kDefault_ModWheel               = 0,

        kDefault_Pitch                  = kDefault_Midpoint,

        kDefault_Expression         = 0x7f,

        kDefault_ChannelPressure    = 0,

        kDefault_ReverbSend         = 40,

        kDefault_ChorusSend         = 0,

        kDefault_RPN_LSB                = 0x7f,

        kDefault_RPN_MSB                = 0x7f,

        kDefault_PitchBendRange     = 2,

        kDefault_FineTuning         = kDefault_Midpoint,

        kDefault_CoarseTuning       = kDefault_Midpoint,

        kDefault_ModDepthRange      = 0,

        kDefault_ModDepthRangeLSB   = kDefault_Midpoint

    };

};

#endif  // __MIDICONTROLHANDLER_H__