src/kits/locale/FormatParameters.cpp

   1 #include <FormatParameters.h>
   2
   3 // defaults
   4 static const format_alignment kDefaultAlignment = B_ALIGN_FORMAT_RIGHT;
   5 static const size_t kDefaultFormatWidth = 1;
   6
   7 // flags
   8 enum {
   9         ALIGNMENT_SET   = 0x01,
  10         WIDTH_SET               = 0x02,
  11 };
  12
  13 // constructor
  14 BFormatParameters::BFormatParameters(const BFormatParameters *parent)
  15         : fParent(parent),
  16           fFlags(0)
  17 {
  18 }
  19
  20 // copy constructor
  21 BFormatParameters::BFormatParameters(const BFormatParameters &other)
  22         : fParent(other.fParent),
  23           fAlignment(other.fAlignment),
  24           fWidth(other.fWidth),
  25           fFlags(other.fFlags)
  26 {
  27 }
  28
  29 // destructor
  30 BFormatParameters::~BFormatParameters()
  31 {
  32 }
  33
  34 // SetAlignment
  35 void
  36 BFormatParameters::SetAlignment(format_alignment alignment)
  37 {
  38         fAlignment = alignment;
  39         fFlags |= ALIGNMENT_SET;
  40 }
  41
  42 // Alignment
  43 format_alignment
  44 BFormatParameters::Alignment() const
  45 {
  46         if (fFlags & ALIGNMENT_SET)
  47                 return fAlignment;
  48         if (fParent)
  49                 return fParent->Alignment();
  50         return kDefaultAlignment;
  51 }
  52
  53 // SetFormatWidth
  54 void
  55 BFormatParameters::SetFormatWidth(size_t width)
  56 {
  57         fWidth = width;
  58         fFlags |= WIDTH_SET;
  59 }
  60
  61 // FormatWidth
  62 size_t
  63 BFormatParameters::FormatWidth() const
  64 {
  65         if (fFlags & WIDTH_SET)
  66                 return fWidth;
  67         if (fParent)
  68                 return fParent->FormatWidth();
  69         return kDefaultFormatWidth;
  70 }
  71
  72 // SetParentParameters
  73 void
  74 BFormatParameters::SetParentParameters(const BFormatParameters *parent)
  75 {
  76         fParent = parent;
  77 }
  78
  79 // ParentParameters
  80 const BFormatParameters *
  81 BFormatParameters::ParentParameters() const
  82 {
  83         return fParent;
  84 }
  85
  86 // =
  87 BFormatParameters &
  88 BFormatParameters::operator=(const BFormatParameters &other)
  89 {
  90         fParent = other.fParent;
  91         fAlignment = other.fAlignment;
  92         fWidth = other.fWidth;
  93         fFlags = other.fFlags;
  94         return *this;
  95 }
  96