20 class GFX_EXPORT Vector2dF {
22   constexpr Vector2dF() : x_(0), y_(0) {}  in Vector2dF()  function
23   constexpr Vector2dF(float x, float y) : x_(x), y_(y) {}  in Vector2dF()  function
35   void Add(const Vector2dF& other);
37   void Subtract(const Vector2dF& other);
39   void operator+=(const Vector2dF& other) { Add(other); }
40   void operator-=(const Vector2dF& other) { Subtract(other); }
42   void SetToMin(const Vector2dF& other) {  in SetToMin()
47   void SetToMax(const Vector2dF& other) {  in SetToMax()
70 inline constexpr bool operator==(const Vector2dF& lhs, const Vector2dF& rhs) {
74 inline constexpr bool operator!=(const Vector2dF& lhs, const Vector2dF& rhs) {
78 inline constexpr Vector2dF operator-(const Vector2dF& v) {
79   return Vector2dF(-v.x(), -v.y());
82 inline Vector2dF operator+(const Vector2dF& lhs, const Vector2dF& rhs) {
83   Vector2dF result = lhs;
88 inline Vector2dF operator-(const Vector2dF& lhs, const Vector2dF& rhs) {
89   Vector2dF result = lhs;
95 GFX_EXPORT double CrossProduct(const Vector2dF& lhs, const Vector2dF& rhs);
98 GFX_EXPORT double DotProduct(const Vector2dF& lhs, const Vector2dF& rhs);
102 GFX_EXPORT Vector2dF ScaleVector2d(const Vector2dF& v,
107 inline Vector2dF ScaleVector2d(const Vector2dF& v, float scale) {  in ScaleVector2d()
114 void PrintTo(const Vector2dF& vector, ::std::ostream* os);