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/*
* Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc. All rights
* reserved.
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_INT_SIZE_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_INT_SIZE_H_
#include "build/build_config.h"
#include "third_party/blink/public/platform/web_common.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#if defined(OS_MACOSX)
typedef struct CGSize CGSize;
#ifdef __OBJC__
#import <Foundation/Foundation.h>
#endif
#endif
namespace gfx {
class Size;
class Vector2d;
}
namespace blink {
class PLATFORM_EXPORT IntSize {
DISALLOW_NEW();
public:
constexpr IntSize() : width_(0), height_(0) {}
constexpr IntSize(int width, int height) : width_(width), height_(height) {}
explicit IntSize(const gfx::Size&);
constexpr int Width() const { return width_; }
constexpr int Height() const { return height_; }
void SetWidth(int width) { width_ = width; }
void SetHeight(int height) { height_ = height; }
constexpr bool IsEmpty() const { return width_ <= 0 || height_ <= 0; }
constexpr bool IsZero() const { return !width_ && !height_; }
float AspectRatio() const {
return static_cast<float>(width_) / static_cast<float>(height_);
}
void Expand(int width, int height) {
width_ += width;
height_ += height;
}
void Scale(float width_scale, float height_scale) {
width_ = static_cast<int>(static_cast<float>(width_) * width_scale);
height_ = static_cast<int>(static_cast<float>(height_) * height_scale);
}
void Scale(float scale) { this->Scale(scale, scale); }
IntSize ExpandedTo(const IntSize& other) const {
return IntSize(width_ > other.width_ ? width_ : other.width_,
height_ > other.height_ ? height_ : other.height_);
}
IntSize ShrunkTo(const IntSize& other) const {
return IntSize(width_ < other.width_ ? width_ : other.width_,
height_ < other.height_ ? height_ : other.height_);
}
void ClampNegativeToZero() { *this = ExpandedTo(IntSize()); }
void ClampToMinimumSize(const IntSize& minimum_size) {
if (width_ < minimum_size.Width())
width_ = minimum_size.Width();
if (height_ < minimum_size.Height())
height_ = minimum_size.Height();
}
// Return area in a uint64_t to avoid overflow.
uint64_t Area() const { return static_cast<uint64_t>(Width()) * Height(); }
int DiagonalLengthSquared() const {
return width_ * width_ + height_ * height_;
}
IntSize TransposedSize() const { return IntSize(height_, width_); }
#if defined(OS_MACOSX)
explicit IntSize(const CGSize&);
explicit operator CGSize() const;
#endif
// Use this only for logical sizes, which can not be negative. Things that are
// offsets instead, and can be negative, should use a gfx::Vector2d.
explicit operator gfx::Size() const;
// IntSize is used as an offset, which can be negative, but gfx::Size can not.
// The Vector2d type is used for offsets instead.
explicit operator gfx::Vector2d() const;
String ToString() const;
private:
int width_, height_;
};
inline IntSize& operator+=(IntSize& a, const IntSize& b) {
a.SetWidth(a.Width() + b.Width());
a.SetHeight(a.Height() + b.Height());
return a;
}
inline IntSize& operator-=(IntSize& a, const IntSize& b) {
a.SetWidth(a.Width() - b.Width());
a.SetHeight(a.Height() - b.Height());
return a;
}
inline IntSize operator+(const IntSize& a, const IntSize& b) {
return IntSize(a.Width() + b.Width(), a.Height() + b.Height());
}
inline IntSize operator-(const IntSize& a, const IntSize& b) {
return IntSize(a.Width() - b.Width(), a.Height() - b.Height());
}
inline IntSize operator-(const IntSize& size) {
return IntSize(-size.Width(), -size.Height());
}
inline bool operator==(const IntSize& a, const IntSize& b) {
return a.Width() == b.Width() && a.Height() == b.Height();
}
inline bool operator!=(const IntSize& a, const IntSize& b) {
return a.Width() != b.Width() || a.Height() != b.Height();
}
PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const IntSize&);
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_INT_SIZE_H_