ShapeVisitor.h

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/* -*- mode: c++ -*- */
#ifndef _BOARD_SHAPE_VISITOR_H_
#define _BOARD_SHAPE_VISITOR_H_

#if __cplusplus<201100
#define override
#endif


namespace LibBoard {

  struct Shape;
  struct ShapeList;
  struct Board;

  struct ShapeVisitor {
    virtual void visit( Shape & shape ) = 0;
    virtual void visit( Shape & shape ) const = 0;
  };

  struct BoundingBoxExtractor : public ShapeVisitor {
    BoundingBoxExtractor( ShapeList & );
    void visit( Shape & ) override;
    void visit( Shape & ) const override;
    const ShapeList & shapeList() const;
  private:
    ShapeList & _shapeList;
  };

  struct BoundingBoxViewer : public ShapeVisitor {
    void visit( Shape & ) override;
    void visit( Shape & ) const override;
  };


}


#if __cplusplus<201100
#undef override
#endif


#endif /* _BOARD_SHAPE_VISITOR_H_ */