GRHarmony.h

#ifndef GRHarmony_H
#define GRHarmony_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 <string>
 
#include "GRPTagARNotationElement.h"
 
class ARHarmony;
class GRStaff;
class GRRod;
class VGFont;
 
class GRHarmony : public GRPTagARNotationElement
{
public:
    class GRTextSaveStruct : public GRPositionTag::GRSaveStruct
    {
    public:
        GRTextSaveStruct()  {}
        virtual ~GRTextSaveStruct() {};
 
        NVPoint position;
        NVRect boundingBox;
        std::string text;
    };
 
                     GRHarmony( GRStaff *, const ARHarmony * abstractRepresentationOfText );
    virtual         ~GRHarmony();
 
    virtual void    removeAssociation( GRNotationElement * el );
    virtual void    tellPosition( GObject * caller, const NVPoint & inPosition );
    virtual void    addAssociation( GRNotationElement * el );
 
    virtual void    OnDraw( VGDevice & hdc ) const;
 
    const ARHarmony *   getARHarmony() const;
 
    virtual unsigned int getTextAlign() const { return mTextAlign; }
 
    virtual float   getLeftSpace() const;
    virtual float   getRightSpace() const;
 
    virtual void    setPosition(const NVPoint & inPosition );
    virtual void    setHPosition( float nx );
            void    mustFollowPitch( bool flag ) { mMustFollowPitch = flag; }
    virtual const GRHarmony *       isGRHarmony() const         { return this; }
 
protected:
 
    virtual GRPositionTag::GRSaveStruct * getNewGRSaveStruct() { return new GRTextSaveStruct; }
 
    unsigned int mTextAlign;
    bool    mMustFollowPitch; // (when the text tag has a range)
 
private:
    void    DrawHarmonyString (VGDevice & hdc, const VGFont* font, const std::string& str, float x, float y) const;
    float   CharExtend (const char* c, const VGFont* font, VGDevice* hdc) const;
    
    const VGFont* fFont = 0;
};
 
#endif