src/mathed/math_bigopinset.C

   1 #include <config.h>
   2
   3 #include "math_bigopinset.h"
   4 #include "Painter.h"
   5 #include "mathed/support.h"
   6 #include "support/LOstream.h"
   7
   8
   9 using std::ostream;
  10
  11 MathBigopInset::MathBigopInset(string const & name, int id)
  12         : MathUpDownInset(false, false), sym_(id), limits_(0)
  13 {
  14         SetName(name);
  15 }
  16
  17
  18 MathInset * MathBigopInset::clone() const
  19 {
  20         return new MathBigopInset(*this);
  21 }
  22
  23
  24 int MathBigopInset::limits() const
  25 {
  26         return limits_;
  27 }
  28
  29
  30 void MathBigopInset::limits(int limits)
  31 {
  32         limits_ = limits;
  33 }
  34
  35
  36 bool MathBigopInset::hasLimits() const
  37 {
  38         return limits_ == 1 || (limits_ == 0 && size() == LM_ST_DISPLAY);
  39 }
  40
  41
  42 void MathBigopInset::Write(ostream & os, bool fragile) const
  43 {
  44         //bool f = sym_ != LM_int && sym_ != LM_oint && size() == LM_ST_DISPLAY;
  45         os << '\\' << name();
  46         MathUpDownInset::Write(os, fragile);
  47 }
  48
  49
  50 void MathBigopInset::WriteNormal(ostream & os) const
  51 {
  52         os << "[bigop " << name() << "] ";
  53 }
  54
  55
  56 void MathBigopInset::Metrics(MathStyles st, int, int)
  57 {
  58         //cerr << "\nBigopDraw\n";
  59         size(st);
  60
  61         if (sym_ < 256 || sym_ == LM_oint) {
  62                 ssym_ = string();
  63                 ssym_ += (sym_ == LM_oint) ? LM_int : sym_;
  64                 code_ = LM_TC_BSYM;
  65         } else {
  66                 ssym_ = name();
  67                 code_ = LM_TC_TEXTRM;
  68         }
  69
  70         int wid;
  71         mathed_string_dim(code_, size(), ssym_, ascent_, descent_, wid);
  72         if (sym_ == LM_oint)
  73                 wid += 2;
  74         //cerr << "  asc: " << ascent_ << " des: " << descent_
  75         //      << " wid: " << wid << "\n";
  76         //cerr << "  hasLimits: " << hasLimits() << " up: "
  77         //      << up() << " down: " << down() << "\n";
  78
  79         width_ = wid;
  80
  81         if (hasLimits()) {
  82                 xcell(0).Metrics(st);
  83                 xcell(1).Metrics(st);
  84                 //cerr << "  0: ascent_: " << xcell(0).ascent() << " descent_: " <<
  85                 //      xcell(0).descent() << " width_: " << xcell(0).width() << "\n";
  86                 //cerr << "  1: ascent_: " << xcell(1).ascent() << " descent_: " <<
  87                 //      xcell(1).descent() << " width_: " << xcell(1).width() << "\n";
  88                 if (up()) {
  89                         ascent_  += xcell(0).height() + 1;
  90                         width_   = std::max(width_, xcell(0).width());
  91                         dy0_     = - (ascent_ - xcell(0).ascent());
  92                 }
  93                 if (down()) {
  94                         descent_ += xcell(1).height() + 1;
  95                         width_   = std::max(width_, xcell(1).width());
  96                         dy1_     = descent_ - xcell(1).descent();
  97                 }
  98                 dxx_  = (width_ - wid) / 2;
  99                 dx0_  = (width_ - xcell(0).width()) / 2;
 100                 dx1_  = (width_ - xcell(1).width()) / 2;
 101                 //cerr << "  ascent_: " << ascent_ << " descent_: "
 102                 //      << descent_ << " width_: " << width_ << "\n";
 103                 //cerr << "  dx0_: " << dx0_ << " dx1_: " << dx1_
 104                 //      << " dxx_: " << dxx_ << "\n";
 105                 //cerr << "  dy0_: " << dy0_ << " dy1_: " << dy1_
 106                 //      << "\n";
 107         } else {
 108                 MathUpDownInset::Metrics(st, ascent_, descent_);
 109                 width_   += wid;
 110                 dx0_     = wid;
 111                 dx1_     = wid;
 112                 dxx_     = 0;
 113         }
 114 }
 115
 116
 117 void MathBigopInset::draw(Painter & pain, int x, int y)
 118 {
 119         xo(x);
 120         yo(y);
 121
 122         pain.text(x + dxx_, y, ssym_, mathed_get_font(code_, size()));
 123
 124         if (up())
 125                 xcell(0).draw(pain, x + dx0_, y + dy0_);
 126         if (down())
 127                 xcell(1).draw(pain, x + dx1_, y + dy1_);
 128
 129         if (sym_ == LM_oint) {
 130                 int xx = x - 1;
 131                 int yy = y - (ascent_ - descent_) / 2;
 132                 pain.arc(xx, yy, width_, width_, 0, 360 * 64, LColor::mathline);
 133         }
 134 }
 135
 136