GRPage.h

#ifndef GRPage_H
#define GRPage_H
 
/*
  GUIDO Library
  Copyright (C) 2002  Holger Hoos, Juergen Kilian, Kai Renz
  Copyright (C) 2003, 2004  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 <vector>
 
#include "GREvent.h"
#include "GUIDOEngine.h"            // for GuidoOnDrawDesc
 
class ARPageFormat;
class ARMusic;
 
class GRSystem;
class GRMusic;
class GRStaffManager;
class TCollisions;
 
extern GRSystem * gCurSystem;
extern NVRect gClipRect;
 
typedef std::vector<GRSystem *> SystemPointerList;
 
class GRPage : public GREvent  
{
    public:
                 GRPage( GRMusic * grmusic, GRStaffManager * grstafmgr,
                        const TYPE_TIMEPOSITION  & inDate, GuidoLayoutSettings &aSettings, GRPage * prevpage = 0 );
    virtual     ~GRPage();
 
    bool        addSystem( GRSystem * inSystem, float * ioUsedSystemDistance );
    void        systemFinished(GRSystem * inSystem);
    void        finishPage( bool islastpage = false ); // system distribution
    void        setSpringParameter(float npar);
    void        setPageFormat(const ARPageFormat * inFormat);
    void        adjustPageSize();
    void        checkCollisions(TCollisions& state, bool lyrics) const;
    float       getNotesDensity() const;
 
    const ARMusic * getARMusic() const;
 
    // - Graphic
    virtual void    trace( VGDevice & hdc ) const;
    virtual void    OnDraw( VGDevice & hdc ) const;
    virtual void    OnDraw( VGDevice & hdc, const GuidoOnDrawDesc & inDrawInfos ) const;
    virtual void    GetMap( GuidoElementSelector sel, MapCollector& f, MapInfos& infos ) const;
    
    virtual void    print(std::ostream& os) const;
    virtual void    accept (GRVisitor& visitor);
    
            void    getMarginsCm( float * ml, float * mt, float * mr, float * mb );
            void    getPageFormat( GuidoPageFormat * outFormat ) const;
 
            float   getMarginLeft() const           { return mLeftMargin; }
            float   getMarginTop() const            { return mTopMargin; }
            float   getMarginRight() const          { return mRightMargin; }
            float   getMarginBottom() const         { return mBottomMargin; }
    
            float   getPageWidth() const            { return mWidth; }
            float   getPageHeight() const           { return mHeight; }
            float   getInnerWidth() const;
            float   getInnerHeight() const;
 
            float   getPageWidthCm() const;
            float   getPageHeightCm() const;
            float   getInnerWidthCm() const;
            float   getInnerHeightCm() const;
    
            void    getScaling( float& vsizex, float& vsizey ) const;
 
        const SystemPointerList *  getSystems() const { return &mSystems; }
 
        TYPE_TIMEPOSITION mDebugPageDate;
 
    protected:
                void    setScaling( VGDevice & hdc, float vsizex, float vsizey ) const;
 
        GRStaffManager * m_staffmgr;
        GRMusic * mCurMusic;
 
        float mLeftMargin;  // now in internal units
        float mTopMargin;
        float mRightMargin;
        float mBottomMargin;
        float mWidth;       // now in internal units
        float mHeight;
        float m_totalsystemheight;
 
        bool DPtoLPRect( VGDevice & hdc, float left, float top, float right, float bottom, NVRect * outRect ) const;
        virtual void    updateBoundingBox();
        // old...
        void    setHorizontalSpacing();
 
        SystemPointerList  mSystems;
        GuidoLayoutSettings settings;
};
 
#endif