src/mathed/math_decorationinset.C

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