src/mathed/math_decorationinset.C

   1 #ifdef __GNUG__
   2 #pragma implementation
   3 #endif
   4
   5 #include "math_decorationinset.h"
   6 #include "mathed/support.h"
   7 #include "math_parser.h"
   8 #include "support/LOstream.h"
   9
  10
  11 using std::ostream;
  12
  13
  14 MathDecorationInset::MathDecorationInset(string const & name, int d)
  15         : MathInset(1, name), deco_(d)
  16 {
  17         upper_ = deco_ != LM_underline && deco_ != LM_underbrace;
  18 }
  19
  20
  21 MathInset * MathDecorationInset::clone() const
  22 {
  23         return new MathDecorationInset(*this);
  24 }
  25
  26
  27
  28 void MathDecorationInset::Metrics(MathStyles st, int, int)
  29 {
  30         xcell(0).Metrics(st);
  31         size_    = st;
  32         width_   = xcell(0).width();
  33         ascent_  = xcell(0).ascent();
  34         descent_ = xcell(0).descent();
  35
  36         dh_ = 5; //mathed_char_height(LM_TC_VAR, size(), 'I', ascent_, descent_);
  37
  38         if (upper_) {
  39                 dy_ = -ascent_ - dh_;
  40                 ascent_ += dh_ + 1;
  41         } else {
  42                 dy_ = descent_ + 1;
  43                 descent_ += dh_ + 2;
  44         }
  45
  46         if (deco_ == LM_not) {
  47                 ascent_  += dh_;
  48                 descent_ += dh_;
  49                 dh_ = height();
  50                 dy_ = - ascent_;
  51         }
  52 }
  53
  54 void MathDecorationInset::draw(Painter & pain, int x, int y)
  55 {
  56         xo(x);
  57         yo(x);
  58         xcell(0).draw(pain, x, y);
  59         mathed_draw_deco(pain, x, y + dy_, width_, dh_, deco_);
  60 }
  61
  62
  63 void MathDecorationInset::Write(ostream & os, bool fragile) const
  64 {
  65         if (fragile &&
  66                         (name_ == "overbrace" ||
  67                          name_ == "underbrace" ||
  68                          name_ == "overleftarrow" ||
  69                          name_ == "overrightarrow"))
  70                 os << "\\protect";
  71         os << '\\' << name_;
  72
  73         if (deco_ == LM_not)
  74                 os << ' ';
  75         else
  76                 os << '{';
  77
  78         cell(0).Write(os, fragile);
  79
  80         if (deco_ != LM_not)
  81                 os << '}';
  82 }
  83
  84 void MathDecorationInset::WriteNormal(ostream & os) const
  85 {
  86         os << "[" << name_ << " ";
  87         cell(0).WriteNormal(os);
  88         os << "] ";
  89 }