gfx/public/nsPoint.h

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  37
  38 #ifndef NSPOINT_H
  39 #define NSPOINT_H
  40
  41 #include "nsCoord.h"
  42
  43 struct nsPoint {
  44   nscoord x, y;
  45
  46   // Constructors
  47   nsPoint() {}
  48   nsPoint(const nsPoint& aPoint) { x = aPoint.x; y = aPoint.y;}
  49   nsPoint(nscoord aX, nscoord aY) { VERIFY_COORD(aX); VERIFY_COORD(aY); x = aX; y = aY;}
  50
  51   void MoveTo(nscoord aX, nscoord aY) {x = aX; y = aY;}
  52   void MoveBy(nscoord aDx, nscoord aDy) {x += aDx; y += aDy;}
  53
  54   // Overloaded operators. Note that '=' isn't defined so we'll get the
  55   // compiler generated default assignment operator
  56   PRBool   operator==(const nsPoint& aPoint) const {
  57     return (PRBool) ((x == aPoint.x) && (y == aPoint.y));
  58   }
  59   PRBool   operator!=(const nsPoint& aPoint) const {
  60     return (PRBool) ((x != aPoint.x) || (y != aPoint.y));
  61   }
  62   nsPoint operator+(const nsPoint& aPoint) const {
  63     return nsPoint(x + aPoint.x, y + aPoint.y);
  64   }
  65   nsPoint operator-(const nsPoint& aPoint) const {
  66     return nsPoint(x - aPoint.x, y - aPoint.y);
  67   }
  68   nsPoint& operator+=(const nsPoint& aPoint) {
  69     x += aPoint.x;
  70     y += aPoint.y;
  71     return *this;
  72   }
  73   nsPoint& operator-=(const nsPoint& aPoint) {
  74     x -= aPoint.x;
  75     y -= aPoint.y;
  76     return *this;
  77   }
  78
  79   nsPoint operator-() const {
  80     return nsPoint(-x, -y);
  81   }
  82 };
  83
  84 #ifdef NS_COORD_IS_FLOAT
  85 struct nsIntPoint {
  86   PRInt32 x, y;
  87
  88   // Constructors
  89   nsIntPoint() {}
  90   nsIntPoint(const nsIntPoint& aPoint) { x = aPoint.x; y = aPoint.y;}
  91   nsIntPoint(PRInt32 aX, PRInt32 aY) { x = aX; y = aY;}
  92
  93   void MoveTo(PRInt32 aX, PRInt32 aY) {x = aX; y = aY;}
  94 };
  95
  96 typedef nsPoint nsFloatPoint;
  97 #else
  98 typedef nsPoint nsIntPoint;
  99
 100 struct nsFloatPoint {
 101   float x, y;
 102
 103   // Constructors
 104   nsFloatPoint() {}
 105   nsFloatPoint(const nsFloatPoint& aPoint) {x = aPoint.x; y = aPoint.y;}
 106   nsFloatPoint(float aX, float aY) {x = aX; y = aY;}
 107
 108   void MoveTo(float aX, float aY) {x = aX; y = aY;}
 109   void MoveTo(nscoord aX, nscoord aY) {x = (float)aX; y = (float)aY;}
 110   void MoveBy(float aDx, float aDy) {x += aDx; y += aDy;}
 111
 112   // Overloaded operators. Note that '=' isn't defined so we'll get the
 113   // compiler generated default assignment operator
 114   PRBool   operator==(const nsFloatPoint& aPoint) const {
 115     return (PRBool) ((x == aPoint.x) && (y == aPoint.y));
 116   }
 117   PRBool   operator!=(const nsFloatPoint& aPoint) const {
 118     return (PRBool) ((x != aPoint.x) || (y != aPoint.y));
 119   }
 120   nsFloatPoint operator+(const nsFloatPoint& aPoint) const {
 121     return nsFloatPoint(x + aPoint.x, y + aPoint.y);
 122   }
 123   nsFloatPoint operator-(const nsFloatPoint& aPoint) const {
 124     return nsFloatPoint(x - aPoint.x, y - aPoint.y);
 125   }
 126   nsFloatPoint& operator+=(const nsFloatPoint& aPoint) {
 127     x += aPoint.x;
 128     y += aPoint.y;
 129     return *this;
 130   }
 131   nsFloatPoint& operator-=(const nsFloatPoint& aPoint) {
 132     x -= aPoint.x;
 133     y -= aPoint.y;
 134     return *this;
 135   }
 136 };
 137 #endif // !NS_COORD_IS_FLOAT
 138
 139 #endif /* NSPOINT_H */