third_party/WebKit/public/platform/WebFloatSize.h

/*
 * 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 */

#ifndef WebFloatSize_h
#define WebFloatSize_h

#include "WebCommon.h"

#include <algorithm>

#if INSIDE_BLINK
#include "platform/geometry/FloatSize.h"
#else
#include <cmath>
#include <ui/gfx/geometry/size_f.h>
#include <ui/gfx/geometry/vector2d_f.h>
#endif

namespace blink {

struct WebFloatSize {
  float width;
  float height;

  bool IsEmpty() const { return width <= 0 || height <= 0; }

  WebFloatSize() : width(0), height(0) {}

  WebFloatSize(float width, float height) : width(width), height(height) {}

#if INSIDE_BLINK
  WebFloatSize(const FloatSize& s) : width(s.Width()), height(s.Height()) {}

  WebFloatSize& operator=(const FloatSize& s) {
    width = s.Width();
    height = s.Height();
    return *this;
  }

  operator FloatSize() const { return FloatSize(width, height); }
#else
  WebFloatSize(const gfx::SizeF& s) : width(s.width()), height(s.height()) {}

  WebFloatSize(const gfx::Vector2dF& v) : width(v.x()), height(v.y()) {}

  WebFloatSize& operator=(const gfx::SizeF& s) {
    width = s.width();
    height = s.height();
    return *this;
  }

  WebFloatSize& operator=(const gfx::Vector2dF& v) {
    width = v.x();
    height = v.y();
    return *this;
  }

  operator gfx::SizeF() const {
    return gfx::SizeF(std::max(0.f, width), std::max(0.f, height));
  }

  operator gfx::Vector2dF() const { return gfx::Vector2dF(width, height); }
#endif
};

inline bool operator==(const WebFloatSize& a, const WebFloatSize& b) {
  return a.width == b.width && a.height == b.height;
}

inline bool operator!=(const WebFloatSize& a, const WebFloatSize& b) {
  return !(a == b);
}

}  // namespace blink

#endif