RSnapRestriction.h

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#ifndef RSNAPRESTRICTION_H
#define RSNAPRESTRICTION_H
 
#include "core_global.h"
 
#include "RVector.h"
 
class RDocumentInterface;
 
class QCADCORE_EXPORT RSnapRestriction {
public:
    RSnapRestriction(RDocumentInterface* documentInterface = NULL) :
        documentInterface(documentInterface),
        lastSnap(RVector::invalid) {}
    virtual ~RSnapRestriction() {}
 
    virtual RVector restrictSnap(const RVector& position, const RVector& relativeZero) = 0;
 
    virtual void showUiOptions() {}
    virtual void hideUiOptions() {}
 
    RVector getLastSnap() const {
        return lastSnap;
    }
 
    void reset() {
        lastSnap = RVector::invalid;
    }
 
protected:
    RDocumentInterface* documentInterface;
    RVector lastSnap;
};
 
Q_DECLARE_METATYPE(RSnapRestriction*)
 
#endif