TXML2GuidoVisitor.h

/*

  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 __TXML2GuidoVisitor__
#define __TXML2GuidoVisitor__

#include "exports.h"
#include "TNotation.h"
#include "TScorePartwise.h"
#include "TScoreVisitor.h"
#include "TScanVisitor.h"
#include "TRational.h"
#include "guido.h"

#include <stack>

using namespace std;
using namespace MusicXML;

class VEXP TXML2GuidoVisitor : public TScoreVisitor {


    public:
        TXML2GuidoVisitor(bool comments=true, bool checkStem=true, bool bar=false);
        virtual ~TXML2GuidoVisitor() {}

        VEXP friend SMARTP<TXML2GuidoVisitor> newXML2GuidoVisitor(bool comments=true, bool checkStem=true, bool bar=false);

        void visite ( SAccidental& elt );
        void visite ( SArticulationElement& elt );
        void visite ( SArticulations& elt );
        void visite ( SAttributes& elt );
        void visite ( SBackup& elt );
        void visite ( SBarline& elt );
        void visite ( SBeam& elt );
        void visite ( SBracket& elt );
        void visite ( SChord& elt );
        void visite ( SClef& elt );
        void visite ( SCoda& elt );
        void visite ( SCreator& elt );
        void visite ( SDirection& elt );
        void visite ( SDirectionType& elt );
        void visite ( SDirective& elt );
        void visite ( SDynamic& elt );
        void visite ( SEncoding& elt );
        void visite ( SEnding& elt );
        void visite ( SFermata& elt );
        void visite ( SForward& elt );
        void visite ( SGraceNote& elt );
        void visite ( SGraphNote& elt );
        void visite ( SIdentification& elt );
        void visite ( SKey& elt );
        void visite ( SMetronome& elt );
        void visite ( SMidiInstrument& elt );
        void visite ( SNotation& elt );
        void visite ( SNote& elt );
        void visite ( SNoteHead& elt );
        void visite ( SOctaveShift& elt );
        void visite ( SPWMeasure& elt );
        void visite ( SPWPart& elt );
        void visite ( SPartGroup& elt );
        void visite ( SPartList& elt );
        void visite ( SPitch& elt );
        void visite ( SRepeat& elt );
        void visite ( SRest& elt );
        void visite ( SScoreInstrument& elt );
        void visite ( SScorePart& elt );
        void visite ( SScorePartwise& elt );
        void visite ( SSegno& elt );
        void visite ( SSlur& elt );
        void visite ( SSound& elt );
        void visite ( SStrongAccent& elt );
        void visite ( STie& elt );
        void visite ( STimeModification& elt );
        void visite ( STimeSign& elt );
        void visite ( STranspose& elt );
        void visite ( STuplet& elt );
        void visite ( STupletDesc& elt );
        void visite ( SUnpitched& elt );
        void visite ( SWavyLine& elt );
        void visite ( SWedge& elt );
        void visite ( SWords& elt );

        Sguidoelement& current ()           { return fStack.top(); }

    protected:
        void add (Sguidoelement& elt)       { fStack.top()->add(elt); }
        void push (Sguidoelement& elt)      { add(elt); fStack.push(elt); }
        void pop ()                         { fStack.pop(); }
        long    fCurrentVoice;
        long    fCurrentDivision;
        bool    fMeasureEmpty;

    private:
        void startmeasure ();
        void measurend (SPWMeasure meas, bool first=false);
        bool checkgrace (const SNote& note);
        bool checkcue   (const SNote& note);
        void checkstem  (const SNote& note);
        void checkstaff (long staff);
        void guidonote (const SNote& note);

        void partheader ( SScoreHeader& elt );
        void guidoheader(SScoreHeader& elt);
        void guidotime(STimeSign& elt);
        const string guidobarstyle(int style) const;

        void addInstr (string instr);

        // the guido elements stack
        stack<Sguidoelement>    fStack;
        // the root element: may be used to search for linked elements
        SScorePartwise      fScore;
        // header is inserted at the beginning of the first sequence and not at its regular place
        bool    fHeaderPending;
        // this is for wedge element with stop attribute handling
        bool    fCrescPending;
        // this is used to scan a part as it may contain several staves and / or voices
        TScanVisitor    fScan;
        // a visitor used to scan the slurs and rewrite guido nested slurs (unnested in MusicXML)
        class SlursVisitor: public TRoutedVisitor {
            public:             
                int flag; int num;
                void visite ( SSlur& elt )  { num++; flag |= elt->getType(); }
        } fSlurs;

        enum location { before, after };
        location fNotePass;
        long    fStaffPass;
        long    fStaffNum;
        long    fMeasNum;
        long    fCurrentStaff;
        int     fStemDirection; 
        
        long    fPendingPops;
        TRational fCurTimeSign;
        
        SPartSummary fCurrentPart;

        bool    fInGrace;
        bool    fInChord;
        bool    fInCue;
        bool    fInRepeat;
        bool    fInTieSlur;
        bool    fBeamOpened;
        
        bool    fComments;
        bool    fCheckStem;
        bool    fGenerateBars;
        bool    fInhibitNextBar;
};
typedef SMARTP<TXML2GuidoVisitor> SXML2GuidoVisitor;

#endif

---