ROrthoGrid.h

Go to the documentation of this file.

 
#ifndef RORTHOGRID_H
#define RORTHOGRID_H
 
#include "grid_global.h"
 
#include "RBox.h"
#include "RGrid.h"
 
class RGraphicsView;
class RRuler;
 
 
 
class QCADGRID_EXPORT ROrthoGrid : public RGrid {
public:
    ROrthoGrid(RGraphicsView& view);
    virtual ~ROrthoGrid();
 
    virtual void clearCache();
 
    RVector snapToGrid(const RVector& positionUcs);
    virtual void update(bool force=false);
    virtual void paint();
    virtual void paintMetaGrid();
 
    virtual void paintGridLines(const RVector& space, const RBox& box, bool meta);
    virtual void paintGridPoints(const RVector& space, const RBox& box);
 
    virtual void paintCursor(const RVector& pos);
 
    virtual void paintRuler(RRuler& ruler, qreal devicePixelRatio = 1.0);
 
    virtual QString getInfoText();
 
    QList<RVector> getIdealSpacing(int minPixelSpacing, const RVector& minSpacing, const RVector& minMetaSpacing);
 
    // 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);
 
    virtual bool isIsometric() const;
    void setIsometric(bool on);
 
    virtual RS::IsoProjectionType getProjection() const;
    void setProjection(RS::IsoProjectionType p);
 
    static QList<RVector> getIdealGridSpacing(RGraphicsView& view, int minPixelSpacing, const RVector& minSpacing, const RVector& minMetaSpacing);
    static bool isFractionalFormat(RS::LinearFormat linearFormat);
 
private:
    static double inchAutoscale(double value, double idealSpacing, RS::Unit unit);
 
private:
    RBox viewBox;
    RBox gridBox;
    RBox metaGridBox;
 
    // current grid spacing:
    RVector spacing;
    // automatically calculated grid spacing based on minimum 
    // grid spacing and minimum pixel spacing:
    RVector autoSpacing;
    // minimum spacing:
    RVector minSpacing;
 
    RVector metaSpacing;
    RVector autoMetaSpacing;
    RVector minMetaSpacing;
 
    int minPixelSpacing;
    QString infoText;
 
    // cached:
    mutable int isometric;
    mutable int projection;
};
 
Q_DECLARE_METATYPE(ROrthoGrid*)
 
#endif