ARPositionTag.h

#ifndef ARPositionTag_H
#define ARPositionTag_H
 
/*
  GUIDO Library
  Copyright (C) 2002  Holger Hoos, Juergen Kilian, Kai Renz
  Copyright (C) 2002-2017 Grame
 
  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
 
*/
 
#include "GUIDOTypes.h" // For GuidoPos
 
 
class ARMusicalObject;
 
class ARPositionTag
{
    public:
                 ARPositionTag() : pos(0), ep(0), mPositionTag(0) { mParentCorrespondence=0; }
        virtual ~ARPositionTag() {
            if(mPositionTag) {
                mPositionTag->setParentCorrespondence(0);
                mPositionTag = 0;
            }
            if(mParentCorrespondence) {
                mParentCorrespondence->setCorrespondence(0);
                mParentCorrespondence = 0;
            }
        }
 
        virtual ARMusicalObject * Copy() const          { return 0; }
        virtual void setPosition(GuidoPos p_pos)        { pos = p_pos ;  }
        virtual GuidoPos getPosition() const            { return pos; }
        virtual GuidoPos getStartPosition() const       { return pos; }
        virtual void setStartPosition(GuidoPos p_pos)   { pos = p_pos; }
        virtual std::string getGMNName() const          = 0;
 
        virtual GuidoPos getEndPosition() const {
            if (mPositionTag) return mPositionTag->getPosition();
            else              return ep;
        }
 
        virtual void setEndPosition(GuidoPos p_pos) {
            if (mPositionTag)   mPositionTag->setPosition(p_pos);
            else                ep = p_pos;
        }
 
        virtual void setCorrespondence(ARPositionTag *p_cor) {
            mPositionTag = p_cor;
            if(mPositionTag)    mPositionTag->setParentCorrespondence(this);
        }
 
        virtual ARPositionTag * getCorrespondence() const           { return mPositionTag; }
        virtual void setParentCorrespondence(ARPositionTag *parent) { mParentCorrespondence = parent; }
        virtual bool    isEndTagClass() const                       { return false; }
 
        virtual ARMusicalObject *isARDisplayDuration() { return NULL; }
        virtual ARMusicalObject *isARChordTag()        { return NULL; }
        virtual ARMusicalObject *isARGrace()           { return NULL; }
        virtual const ARMusicalObject *isARFeatheredBeam() const    { return NULL; }
 
    protected:
        GuidoPos pos;
        GuidoPos ep;
 
        ARPositionTag * mPositionTag; // the correspondence.
        ARPositionTag * mParentCorrespondence;
};
 
#endif