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// Copyright 2014 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_DOUBLE_SIZE_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_DOUBLE_SIZE_H_
#include <iosfwd>
#include "third_party/blink/renderer/platform/geometry/float_size.h"
#include "third_party/blink/renderer/platform/geometry/int_size.h"
#include "third_party/blink/renderer/platform/wtf/allocator.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
namespace blink {
class LayoutSize;
class PLATFORM_EXPORT DoubleSize {
DISALLOW_NEW();
public:
DoubleSize() : width_(0), height_(0) {}
DoubleSize(double width, double height) : width_(width), height_(height) {}
explicit DoubleSize(const IntSize& p)
: width_(p.Width()), height_(p.Height()) {}
DoubleSize(const FloatSize& s) : width_(s.Width()), height_(s.Height()) {}
explicit DoubleSize(const LayoutSize&);
double Width() const { return width_; }
double Height() const { return height_; }
void SetWidth(double width) { width_ = width; }
void SetHeight(double height) { height_ = height; }
bool IsEmpty() const { return width_ <= 0 || height_ <= 0; }
bool IsZero() const;
void Expand(float width, float height) {
width_ += width;
height_ += height;
}
void Scale(float width_scale, float height_scale) {
width_ = width_ * width_scale;
height_ = height_ * height_scale;
}
void Scale(float scale) { this->Scale(scale, scale); }
String ToString() const;
private:
double width_, height_;
};
inline DoubleSize& operator+=(DoubleSize& a, const DoubleSize& b) {
a.SetWidth(a.Width() + b.Width());
a.SetHeight(a.Height() + b.Height());
return a;
}
inline DoubleSize& operator-=(DoubleSize& a, const DoubleSize& b) {
a.SetWidth(a.Width() - b.Width());
a.SetHeight(a.Height() - b.Height());
return a;
}
inline DoubleSize operator+(const DoubleSize& a, const DoubleSize& b) {
return DoubleSize(a.Width() + b.Width(), a.Height() + b.Height());
}
inline DoubleSize operator-(const DoubleSize& a, const DoubleSize& b) {
return DoubleSize(a.Width() - b.Width(), a.Height() - b.Height());
}
inline bool operator==(const DoubleSize& a, const DoubleSize& b) {
return a.Width() == b.Width() && a.Height() == b.Height();
}
inline bool operator!=(const DoubleSize& a, const DoubleSize& b) {
return a.Width() != b.Width() || a.Height() != b.Height();
}
inline IntSize FlooredIntSize(const DoubleSize& p) {
return IntSize(clampTo<int>(floor(p.Width())),
clampTo<int>(floor(p.Height())));
}
inline IntSize RoundedIntSize(const DoubleSize& p) {
return IntSize(clampTo<int>(round(p.Width())),
clampTo<int>(round(p.Height())));
}
inline IntSize ExpandedIntSize(const DoubleSize& p) {
return IntSize(clampTo<int>(ceil(p.Width())), clampTo<int>(ceil(p.Height())));
}
inline FloatSize ToFloatSize(const DoubleSize& p) {
return FloatSize(p.Width(), p.Height());
}
PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const DoubleSize&);
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_DOUBLE_SIZE_H_
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