ROrthoGrid.h

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#ifndef RORTHOGRID_H
#define RORTHOGRID_H

#include "RGrid.h"

class RGraphicsView;
class RRuler;



class ROrthoGrid : public RGrid {
public:
    ROrthoGrid();
    virtual ~ROrthoGrid();

    RVector snapToGrid(RGraphicsView& view, const RVector& positionUcs);
    virtual void update(RGraphicsView& view, bool force=false);
    virtual void paint(RGraphicsView& view);
    virtual void paintMetaGrid(RGraphicsView& view);

    virtual void paintRuler(RGraphicsView& view, RRuler& ruler);

    virtual QString getInfoText();

    static QList<RVector> getIdealSpacing(const RGraphicsView& view, int minPixelSpacing, const RVector& minSpacing);

    // This is just an idea. This might update the grid for
    // an entity that is viewed as elevation view. This might be at
    // any angle.
    //void updateGrid(REntity& entity);

    static bool isFractionalFormat(RS::LinearFormat linearFormat);

private:
    static double inchAutoscale(double value, double idealSpacing, RS::Unit unit);

private:
    RBox viewBox;
    RBox gridBox;
    RBox metaGridBox;
    RVector spacing;
    RVector autoSpacing;
    RVector minSpacing;
    RVector metaSpacing;
    RVector autoMetaSpacing;
    bool scaleGrid;
    int minPixelSpacing;
    //RS::Unit unit;
    QString infoText;
};

Q_DECLARE_METATYPE(ROrthoGrid*)

#endif