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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GFX_POINT_F_H_
#define UI_GFX_POINT_F_H_
#include <string>
#include "ui/base/ui_export.h"
#include "ui/gfx/point_base.h"
#include "ui/gfx/vector2d_f.h"
namespace gfx {
// A floating version of gfx::Point.
class UI_EXPORT PointF : public PointBase<PointF, float, Vector2dF> {
public:
PointF() : PointBase<PointF, float, Vector2dF>(0, 0) {}
PointF(float x, float y) : PointBase<PointF, float, Vector2dF>(x, y) {}
~PointF() {}
void Scale(float scale) {
Scale(scale, scale);
}
void Scale(float x_scale, float y_scale) {
SetPoint(x() * x_scale, y() * y_scale);
}
// Returns a string representation of point.
std::string ToString() const;
};
inline bool operator==(const PointF& lhs, const PointF& rhs) {
return lhs.x() == rhs.x() && lhs.y() == rhs.y();
}
inline bool operator!=(const PointF& lhs, const PointF& rhs) {
return !(lhs == rhs);
}
inline PointF operator+(const PointF& lhs, const Vector2dF& rhs) {
PointF result(lhs);
result += rhs;
return result;
}
inline PointF operator-(const PointF& lhs, const Vector2dF& rhs) {
PointF result(lhs);
result -= rhs;
return result;
}
inline Vector2dF operator-(const PointF& lhs, const PointF& rhs) {
return Vector2dF(lhs.x() - rhs.x(), lhs.y() - rhs.y());
}
inline PointF PointAtOffsetFromOrigin(const Vector2dF& offset_from_origin) {
return PointF(offset_from_origin.x(), offset_from_origin.y());
}
UI_EXPORT PointF ScalePoint(const PointF& p, float x_scale, float y_scale);
inline PointF ScalePoint(const PointF& p, float scale) {
return ScalePoint(p, scale, scale);
}
#if !defined(COMPILER_MSVC)
extern template class PointBase<PointF, float, Vector2dF>;
#endif
} // namespace gfx
#endif // UI_GFX_POINT_F_H_
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