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(string const & name, int d)
  18         : MathInset(1, name), 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, int, int)
  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         if (deco_ == LM_not) {
  50                 ascent_  += dh_;
  51                 descent_ += dh_;
  52                 dh_ = height();
  53                 dy_ = - ascent_;
  54         }
  55 }
  56
  57 void MathDecorationInset::draw(Painter & pain, int x, int y)
  58 {
  59         xo(x);
  60         yo(x);
  61         xcell(0).draw(pain, x, y);
  62         mathed_draw_deco(pain, x, y + dy_, width_, dh_, deco_);
  63 }
  64
  65
  66 void MathDecorationInset::Write(ostream & os, bool fragile) const
  67 {
  68         if (fragile &&
  69                         (name_ == "overbrace" ||
  70                          name_ == "underbrace" ||
  71                          name_ == "overleftarrow" ||
  72                          name_ == "overrightarrow"))
  73                 os << "\\protect";
  74         os << '\\' << name_;
  75
  76         if (deco_ == LM_not)
  77                 os << ' ';
  78         else
  79                 os << '{';
  80
  81         cell(0).Write(os, fragile);
  82
  83         if (deco_ != LM_not)
  84                 os << '}';
  85 }
  86
  87 void MathDecorationInset::WriteNormal(ostream & os) const
  88 {
  89         os << "[" << name_ << " ";
  90         cell(0).WriteNormal(os);
  91         os << "] ";
  92 }