File: TabSize.h

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// Copyright 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 TabSize_h
#define TabSize_h

#include "wtf/Allocator.h"

namespace blink {

struct TabSize {
  DISALLOW_NEW();
  TabSize(float pixels) : m_floatValue(pixels), m_isSpaces(0) {}

  TabSize(int spaces) : m_floatValue(spaces), m_isSpaces(1) {}

  bool isSpaces() const { return m_isSpaces; }

  float getPixelSize(float spaceWidth) const {
    return m_isSpaces ? m_floatValue * spaceWidth : m_floatValue;
  }

  float m_floatValue;
  unsigned m_isSpaces : 1;
};

inline bool operator==(const TabSize& a, const TabSize& b) {
  return (a.m_floatValue == b.m_floatValue) && (a.m_isSpaces == b.m_isSpaces);
}

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

}  // namespace blink

#endif  // TabSize_h