?? geom.h.old
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#include "defs.H"typedef float Coord;#include "stdlib.h"class ostream;class istream;class Point {public: static const Point& Zero; Point(Coord x = 0.0, Coord y = 0.0); Coord X() const; Coord Y() const; void X(Coord x); void Y(Coord y); friend Point operator+(const Point &p1, const Point &p2); friend Point operator-(const Point &p1, const Point &p2); friend Point operator*(const Point &p1, const Point &p2); friend Point operator/(const Point &p1, const Point &p2); Point operator-(); Point operator+=(const Point &p); Point operator-=(const Point &p); Point operator*=(const Point &p); Point operator/=(const Point &p); friend bool operator==(const Point &p1, const Point &p2); friend bool operator!=(const Point &p1, const Point &p2); friend ostream& operator<<(ostream&, const Point&); friend istream& operator>>(istream&, Point&);public: Coord _x; Coord _y;};class Rect {public: static const Rect& Zero; Rect(Coord x, Coord y, Coord w, Coord h); Rect(const Point &origin, const Point &extent); Coord Width() const; Coord Height() const; Coord Left() const; Coord Top() const; void Width(Coord); void Height(Coord); void Left(Coord); void Top(Coord); Point Origin() const; Point Extent() const; void Origin(const Point&); void Extent(const Point&); Rect &Moveby(const Point &p); bool IsEmpty() const; bool ContainsPoint(const Point &p) const;public: Point _origin; Point _extent;};// some useful functionsCoord min(Coord, Coord);Coord max(Coord, Coord);Coord abs(Coord);int round(Coord);
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