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/*
* Copyright (c) 2014, 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.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* 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
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_FLOAT_BOX_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_FLOAT_BOX_H_
#include <cmath>
#include <iosfwd>
#include "third_party/blink/renderer/platform/geometry/float_point_3d.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator.h"
namespace blink {
class PLATFORM_EXPORT FloatBox {
DISALLOW_NEW();
public:
constexpr FloatBox()
: x_(0), y_(0), z_(0), width_(0), height_(0), depth_(0) {}
constexpr FloatBox(float x,
float y,
float z,
float width,
float height,
float depth)
: x_(x), y_(y), z_(z), width_(width), height_(height), depth_(depth) {}
constexpr FloatBox(const FloatBox& box)
: x_(box.X()),
y_(box.Y()),
z_(box.Z()),
width_(box.Width()),
height_(box.Height()),
depth_(box.Depth()) {}
void SetOrigin(const FloatPoint3D& origin) {
x_ = origin.X();
y_ = origin.Y();
z_ = origin.Z();
}
void SetSize(const FloatPoint3D& origin) {
DCHECK_GE(origin.X(), 0);
DCHECK_GE(origin.Y(), 0);
DCHECK_GE(origin.Z(), 0);
width_ = origin.X();
height_ = origin.Y();
depth_ = origin.Z();
}
void Move(const FloatPoint3D& location) {
x_ += location.X();
y_ += location.Y();
z_ += location.Z();
}
void Flatten() {
z_ = 0;
depth_ = 0;
}
void ExpandTo(const FloatPoint3D& low, const FloatPoint3D& high);
void ExpandTo(const FloatPoint3D& point) { ExpandTo(point, point); }
void ExpandTo(const FloatBox& box) {
ExpandTo(FloatPoint3D(box.X(), box.Y(), box.Z()),
FloatPoint3D(box.Right(), box.Bottom(), box.front()));
}
void UnionBounds(const FloatBox& box) {
if (box.IsEmpty())
return;
if (IsEmpty()) {
*this = box;
return;
}
ExpandTo(box);
}
constexpr bool IsEmpty() const {
return (width_ <= 0 && height_ <= 0) || (width_ <= 0 && depth_ <= 0) ||
(height_ <= 0 && depth_ <= 0);
}
constexpr float Right() const { return x_ + width_; }
constexpr float Bottom() const { return y_ + height_; }
constexpr float front() const { return z_ + depth_; }
constexpr float X() const { return x_; }
constexpr float Y() const { return y_; }
constexpr float Z() const { return z_; }
constexpr float Width() const { return width_; }
constexpr float Height() const { return height_; }
constexpr float Depth() const { return depth_; }
String ToString() const;
private:
float x_;
float y_;
float z_;
float width_;
float height_;
float depth_;
};
constexpr bool operator==(const FloatBox& a, const FloatBox& b) {
return a.X() == b.X() && a.Y() == b.Y() && a.Z() == b.Z() &&
a.Width() == b.Width() && a.Height() == b.Height() &&
a.Depth() == b.Depth();
}
constexpr bool operator!=(const FloatBox& a, const FloatBox& b) {
return !(a == b);
}
PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const FloatBox&);
} // namespace blink
#endif