src/mathed/math_decorationinset.C

   1 #include <config.h>
   2
   3
   4 #include "math_decorationinset.h"
   5 #include "math_support.h"
   6 #include "math_parser.h"
   7 #include "math_mathmlstream.h"
   8 #include "math_streamstr.h"
   9 #include "support/LOstream.h"
  10
  11 using std::auto_ptr;
  12
  13
  14 MathDecorationInset::MathDecorationInset(latexkeys const * key)
  15         : MathNestInset(1), key_(key)
  16 {}
  17
  18
  19 auto_ptr<InsetBase> MathDecorationInset::clone() const
  20 {
  21         return auto_ptr<InsetBase>(new MathDecorationInset(*this));
  22 }
  23
  24
  25 bool MathDecorationInset::upper() const
  26 {
  27         return key_->name.substr(0, 5) != "under";
  28 }
  29
  30
  31 bool MathDecorationInset::isScriptable() const
  32 {
  33         return
  34                         key_->name == "overbrace" ||
  35                         key_->name == "underbrace" ||
  36                         key_->name == "overleftarrow" ||
  37                         key_->name == "overrightarrow" ||
  38                         key_->name == "overleftrightarrow" ||
  39                         key_->name == "underleftarrow" ||
  40                         key_->name == "underrightarrow" ||
  41                         key_->name == "underleftrightarrow";
  42 }
  43
  44
  45 bool MathDecorationInset::protect() const
  46 {
  47         return
  48                         key_->name == "overbrace" ||
  49                         key_->name == "underbrace" ||
  50                         key_->name == "overleftarrow" ||
  51                         key_->name == "overrightarrow" ||
  52                         key_->name == "overleftrightarrow" ||
  53                         key_->name == "underleftarrow" ||
  54                         key_->name == "underrightarrow" ||
  55                         key_->name == "underleftrightarrow";
  56 }
  57
  58
  59 bool MathDecorationInset::wide() const
  60 {
  61         return
  62                         key_->name == "overline" ||
  63                         key_->name == "underline" ||
  64                         key_->name == "overbrace" ||
  65                         key_->name == "underbrace" ||
  66                         key_->name == "overleftarrow" ||
  67                         key_->name == "overrightarrow" ||
  68                         key_->name == "overleftrightarrow" ||
  69                         key_->name == "widehat" ||
  70                         key_->name == "widetilde" ||
  71                         key_->name == "underleftarrow" ||
  72                         key_->name == "underrightarrow" ||
  73                         key_->name == "underleftrightarrow";
  74 }
  75
  76
  77 void MathDecorationInset::metrics(MetricsInfo & mi, Dimension & dim) const
  78 {
  79         cell(0).metrics(mi);
  80         dim_ = cell(0).dim();
  81
  82         dh_  = 6; //mathed_char_height(LM_TC_VAR, mi, 'I', ascent_, descent_);
  83         dw_  = 6; //mathed_char_width(LM_TC_VAR, mi, 'x');
  84
  85         if (upper()) {
  86                 dy_ = -dim_.asc - dh_;
  87                 dim_.asc += dh_ + 1;
  88         } else {
  89                 dy_ = dim_.des + 1;
  90                 dim_.des += dh_ + 2;
  91         }
  92
  93         metricsMarkers();
  94         dim = dim_;
  95 }
  96
  97
  98 void MathDecorationInset::draw(PainterInfo & pi, int x, int y) const
  99 {
 100         cell(0).draw(pi, x + 1, y);
 101         if (wide())
 102                 mathed_draw_deco(pi, x + 1, y + dy_, cell(0).width(), dh_, key_->name);
 103         else
 104                 mathed_draw_deco(pi, x + 1 + (pi.width - dw_) / 2,
 105                         y + dy_, dw_, dh_, key_->name);
 106         drawMarkers(pi, x, y);
 107 }
 108
 109
 110 void MathDecorationInset::write(WriteStream & os) const
 111 {
 112         if (os.fragile() && protect())
 113                 os << "\\protect";
 114         os << '\\' << key_->name << '{' << cell(0) << '}';
 115 }
 116
 117
 118 void MathDecorationInset::normalize(NormalStream & os) const
 119 {
 120         os << "[deco " << key_->name << ' ' <<  cell(0) << ']';
 121 }
 122
 123
 124 void MathDecorationInset::infoize(std::ostream & os) const
 125 {
 126         os << "Deco: " << key_->name;
 127 }