TPitch.h

/*

  MusicXML Library
  Copyright (C) 2003  Grame

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  Grame Research Laboratory, 9 rue du Garet, 69001 Lyon - France
  grame@grame.fr

*/

#ifndef __TPitch__
#define __TPitch__

#include "exports.h"
#include "bimap.h"
#include "smartpointer.h"
#include "TScoreVisitor.h"
#include <string>

namespace MusicXML 
{

class EXP TPitch : public visitable, public smartable {

      public:
        enum { undefined=0, C=1, D, E, F, G, A, B, last=B, diatonicSteps=last };
        EXP friend SMARTP<TPitch> newPitch();
        
        virtual void accept(TScoreVisitor& visitor);

        int     getStep() const     { return fStep; }
        float   getAlter() const    { return fAlter; }
        int     getOctave() const   { return fOctave; }

        void    setStep(int step);
        void    setAlter(float alter);
        void    setOctave(int oct);

    static const string xmlpitch (int d);
    static int          xmlpitch (const string str);

        TPitch&         operator++ (int)    { fAlter+=1; return *this; }
        TPitch&         operator-- (int)    { fAlter-=1; return *this; }

        TPitch&         operator+= (int n);
        TPitch&         operator+= (unsigned int n);

        TPitch&         operator-= (int n);
        TPitch&         operator-= (unsigned int n);

        unsigned short  MIDIPitch () const;
    
    protected:
        TPitch() : fStep(undefined), fAlter(0), fOctave(0) {}
        virtual ~TPitch() {}

        int     fStep;
        float   fAlter;
        int     fOctave;

    private:
    static bimap<string, int> fPitch2String;
    static int      fPitchTbl[];
    static string   fPitchStrings[];
};
typedef SMARTP<TPitch> SPitch;

class EXP TUnpitched : public TPitch {
    public:
        EXP friend SMARTP<TUnpitched> newUnpitched();
        virtual void accept(TScoreVisitor& visitor);

    protected:
        TUnpitched() {}
        virtual ~TUnpitched() {}
};
typedef SMARTP<TUnpitched> SUnpitched;

class EXP TRest : public TPitch {
      public:
        EXP friend SMARTP<TRest> newRest();
        virtual void accept(TScoreVisitor& visitor);

    protected:
        TRest() {}
        virtual ~TRest() {}
};
typedef SMARTP<TRest> SRest;

} // namespace MusicXML


#endif

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