third_party/WebKit/Source/core/style/StyleContentAlignmentData.h

// Copyright (c) 2015 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 StyleContentAlignmentData_h
#define StyleContentAlignmentData_h

#include "core/style/ComputedStyleConstants.h"
#include "wtf/Allocator.h"

namespace blink {

class StyleContentAlignmentData {
  DISALLOW_NEW();

 public:
  // Style data for Content-Distribution properties: align-content,
  // justify-content.
  // <content-distribution> || [ <overflow-position>? && <content-position> ]
  StyleContentAlignmentData(
      ContentPosition position,
      ContentDistributionType distribution,
      OverflowAlignment overflow = OverflowAlignmentDefault)
      : m_position(position),
        m_distribution(distribution),
        m_overflow(overflow) {}

  void setPosition(ContentPosition position) { m_position = position; }
  void setDistribution(ContentDistributionType distribution) {
    m_distribution = distribution;
  }
  void setOverflow(OverflowAlignment overflow) { m_overflow = overflow; }

  ContentPosition position() const {
    return static_cast<ContentPosition>(m_position);
  }
  ContentDistributionType distribution() const {
    return static_cast<ContentDistributionType>(m_distribution);
  }
  OverflowAlignment overflow() const {
    return static_cast<OverflowAlignment>(m_overflow);
  }

  bool operator==(const StyleContentAlignmentData& o) const {
    return m_position == o.m_position && m_distribution == o.m_distribution &&
           m_overflow == o.m_overflow;
  }

  bool operator!=(const StyleContentAlignmentData& o) const {
    return !(*this == o);
  }

 private:
  unsigned m_position : 4;      // ContentPosition
  unsigned m_distribution : 3;  // ContentDistributionType
  unsigned m_overflow : 2;      // OverflowAlignment
};

}  // namespace blink

#endif  // StyleContentAlignmentData_h