third_party/WebKit/Source/platform/text/TabSize.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef TabSize_h
   6 #define TabSize_h
   7
   8 namespace blink {
   9
  10 struct TabSize {
  11     TabSize(float pixels)
  12         : m_floatValue(pixels)
  13         , m_isSpaces(0)
  14     {
  15     }
  16
  17     TabSize(int spaces)
  18         : m_floatValue(spaces)
  19         , m_isSpaces(1)
  20     {
  21     }
  22
  23     bool isSpaces() const
  24     {
  25         return m_isSpaces;
  26     }
  27
  28     float getPixelSize(float spaceWidth) const
  29     {
  30         return m_isSpaces ? m_floatValue * spaceWidth : m_floatValue;
  31     }
  32
  33     float m_floatValue;
  34     unsigned m_isSpaces : 1;
  35 };
  36
  37 inline bool operator==(const TabSize& a, const TabSize& b)
  38 {
  39     return (a.m_floatValue == b.m_floatValue) && (a.m_isSpaces == b.m_isSpaces);
  40 }
  41
  42 inline bool operator!=(const TabSize& a, const TabSize& b)
  43 {
  44     return !(a == b);
  45 }
  46
  47 } // namespace blink
  48
  49 #endif // TabSize_h