third_party/WebKit/Source/core/layout/ng/ng_margin_strut.h

// Copyright 2016 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 NGMarginStrut_h
#define NGMarginStrut_h

#include "core/CoreExport.h"
#include "platform/LayoutUnit.h"

namespace blink {

// Stores the four margins of a box
struct NGBoxMargins {
  LayoutUnit inlineStart;
  LayoutUnit inlineEnd;
  LayoutUnit blockStart;
  LayoutUnit blockEnd;

  LayoutUnit inlineSum() const { return inlineStart + inlineEnd; }
  LayoutUnit blockSum() const { return blockStart + blockEnd; }
};

// This struct is used for the margin collapsing calculation.
struct NGMarginStrut {
  LayoutUnit marginBlockStart;
  LayoutUnit marginBlockEnd;

  LayoutUnit negativeMarginBlockStart;
  LayoutUnit negativeMarginBlockEnd;
};

}  // namespace blink

#endif  // NGMarginStrut_h