1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef UI_GFX_POINT_F_H_ 6#define UI_GFX_POINT_F_H_ 7 8#include <string> 9 10#include "ui/gfx/gfx_export.h" 11#include "ui/gfx/point_base.h" 12#include "ui/gfx/vector2d_f.h" 13 14namespace gfx { 15 16// A floating version of gfx::Point. 17class GFX_EXPORT PointF : public PointBase<PointF, float, Vector2dF> { 18 public: 19 PointF() : PointBase<PointF, float, Vector2dF>(0, 0) {} 20 PointF(float x, float y) : PointBase<PointF, float, Vector2dF>(x, y) {} 21 ~PointF() {} 22 23 void Scale(float scale) { 24 Scale(scale, scale); 25 } 26 27 void Scale(float x_scale, float y_scale) { 28 SetPoint(x() * x_scale, y() * y_scale); 29 } 30 31 // Returns a string representation of point. 32 std::string ToString() const; 33}; 34 35inline bool operator==(const PointF& lhs, const PointF& rhs) { 36 return lhs.x() == rhs.x() && lhs.y() == rhs.y(); 37} 38 39inline bool operator!=(const PointF& lhs, const PointF& rhs) { 40 return !(lhs == rhs); 41} 42 43inline PointF operator+(const PointF& lhs, const Vector2dF& rhs) { 44 PointF result(lhs); 45 result += rhs; 46 return result; 47} 48 49inline PointF operator-(const PointF& lhs, const Vector2dF& rhs) { 50 PointF result(lhs); 51 result -= rhs; 52 return result; 53} 54 55inline Vector2dF operator-(const PointF& lhs, const PointF& rhs) { 56 return Vector2dF(lhs.x() - rhs.x(), lhs.y() - rhs.y()); 57} 58 59inline PointF PointAtOffsetFromOrigin(const Vector2dF& offset_from_origin) { 60 return PointF(offset_from_origin.x(), offset_from_origin.y()); 61} 62 63GFX_EXPORT PointF ScalePoint(const PointF& p, float x_scale, float y_scale); 64 65inline PointF ScalePoint(const PointF& p, float scale) { 66 return ScalePoint(p, scale, scale); 67} 68 69#if !defined(COMPILER_MSVC) 70extern template class PointBase<PointF, float, Vector2dF>; 71#endif 72 73} // namespace gfx 74 75#endif // UI_GFX_POINT_F_H_ 76