chromium/third_party/blink/renderer/core/layout/geometry/physical_rect.h

// Copyright 2017 The Chromium Authors
// 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_CORE_LAYOUT_GEOMETRY_PHYSICAL_RECT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_GEOMETRY_PHYSICAL_RECT_H_

#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/layout/geometry/physical_offset.h"
#include "third_party/blink/renderer/core/layout/geometry/physical_size.h"
#include "third_party/blink/renderer/platform/geometry/layout_unit.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
#include "ui/gfx/geometry/rect_f.h"

namespace WTF {
class String;
class TextStream;
}  // namespace WTF

namespace blink {

struct PhysicalBoxStrut;

// PhysicalRect is the position and size of a rect (typically a fragment)
// relative to its parent rect in the physical coordinate system.
// For more information about physical and logical coordinate systems, see:
// https://chromium.googlesource.com/chromium/src/+/main/third_party/blink/renderer/core/layout/README.md#coordinate-spaces
struct CORE_EXPORT PhysicalRect { … };

inline PhysicalRect UnionRect(const PhysicalRect& a, const PhysicalRect& b) { … }

inline PhysicalRect Intersection(const PhysicalRect& a, const PhysicalRect& b) { … }

// TODO(crbug.com/962299): These functions should upgraded to force correct
// pixel snapping in a type-safe way.
inline gfx::Rect ToEnclosingRect(const PhysicalRect& r) { … }
inline gfx::Rect ToPixelSnappedRect(const PhysicalRect& r) { … }

CORE_EXPORT PhysicalRect UnionRect(const Vector<PhysicalRect>& rects);
CORE_EXPORT PhysicalRect
UnionRectEvenIfEmpty(const Vector<PhysicalRect>& rects);

CORE_EXPORT std::ostream& operator<<(std::ostream&, const PhysicalRect&);
CORE_EXPORT WTF::TextStream& operator<<(WTF::TextStream&, const PhysicalRect&);

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_GEOMETRY_PHYSICAL_RECT_H_