unrolled_xml_tree_browser.h

/*
  MusicXML Library
  Copyright (C) Grame 2006-2013
 
  This Source Code Form is subject to the terms of the Mozilla Public
  License, v. 2.0. If a copy of the MPL was not distributed with this
  file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
  Grame Research Laboratory, 11, cours de Verdun Gensoul 69002 Lyon - France
  research@grame.fr
*/
 
#ifndef __unrolled_xml_tree_browser__
#define __unrolled_xml_tree_browser__
 
#include <map>
#include "visitor.h"
#include "xml.h"
#include "browser.h"
#include "typedefs.h"
 
namespace MusicXML2 
{
 
//______________________________________________________________________________
class EXP unrolled_xml_tree_browser : public browser<xmlelement>,
    public visitor<Sxmlelement>,
    public visitor<S_measure>,
    public visitor<S_ending>,
    public visitor<S_repeat>,
    public visitor<S_part>,
    public visitor<S_sound>
{
    private:
        typedef struct { int current; int next; } state;
        std::map<S_repeat,int>  fRepeatMap;         // used to avoid loops in miswritten scores
 
        enum { kUndefined=-1, kNoInstruction=0 };
        enum { kNoJump,  kDaCapo, kDalSegno, kToCoda };
 
        bool    fForward;       
        state   fJump;          
        state   fRound;         
        state   fExpectedRound; 
        int     fSectionIndex;  
        
        void reset();
 
    protected:
        basevisitor*    fVisitor;
 
        ctree<xmlelement>::literator    fFirstMeasure;      
        ctree<xmlelement>::literator    fForwardRepeat;     
        ctree<xmlelement>::literator    fEndIterator;       
        ctree<xmlelement>::literator    fNextIterator;      
        ctree<xmlelement>::literator    fSegnoIterator;     
        ctree<xmlelement>::literator    fCodaIterator;      
        ctree<xmlelement>::literator*   fStoreIterator;     
        int fStoreDelay;        
 
    public:
                 unrolled_xml_tree_browser(basevisitor* v) : fForward(true), fVisitor(v) {}
        virtual ~unrolled_xml_tree_browser() {}
 
        virtual void visitStart( Sxmlelement& elt);
        virtual void visitStart( S_measure& elt);
        virtual void visitStart( S_ending& elt);
        virtual void visitStart( S_repeat& elt);
        virtual void visitStart( S_part& elt);
        virtual void visitStart( S_sound& elt);
 
        virtual void browse (xmlelement& t);
        virtual void forwardBrowse (xmlelement& t);
        virtual void enter (xmlelement& t)      { t.acceptIn(*fVisitor); }
        virtual void leave (xmlelement& t)      { t.acceptOut(*fVisitor); }
};
 
} // namespace MusicXML2
 
 
#endif