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[lyx.git] / src / mathed / math_charinset.C

diff --git a/src/mathed/math_charinset.C b/src/mathed/math_charinset.C
index a5eca98288fcf9419c8d49b3d6ccec017440a118..a212db15e7e356c3e8851de0fe1ecd7a73cf2b68 100644 (file)
--- a/src/mathed/math_charinset.C
+++ b/src/mathed/math_charinset.C
@@ -1,105 +1,141 @@
+#include <config.h>
+
 #ifdef __GNUG__
 #pragma implementation
 #endif
 
 #include "math_charinset.h"
 #include "LColor.h"
-#include "Painter.h"
+#include "frontends/Painter.h"
+#include "frontends/font_metrics.h"
 #include "support/LOstream.h"
-#include "mathed/support.h"
-#include "math_parser.h"
 #include "debug.h"
+#include "math_support.h"
+#include "math_mathmlstream.h"
+#include "LaTeXFeatures.h"
+#include "textpainter.h"
 
+#include <cctype>
+#include <cstring>
+
+
+using std::ostream;
+using std::endl;
+
+#ifndef CXX_GLOBAL_CSTD
+using std::strchr;
+using std::isalpha;
+#endif
+
+
+namespace {
+
+       bool isBinaryOp(char c)
+       {
+               return strchr("+-<>=/*", c);
+       }
+
+
+       bool slanted(char c)
+       {
+               //if (strchr("0123456789;:!|[]().,?+/-*<>=", c)
+               return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z');
+       }
 
-MathCharInset::MathCharInset(char c, MathTextCodes t)
-       : char_(c)
-{
-       code(t);
 }
 
 
+MathCharInset::MathCharInset(char c)
+       : char_(c)
+{}
+
+
+
 MathInset * MathCharInset::clone() const
-{   
+{
        return new MathCharInset(*this);
 }
 
 
-int MathCharInset::ascent() const
+void MathCharInset::metrics(MathMetricsInfo & mi) const
 {
-       return mathed_char_ascent(code_, size(), char_);
+#if 1
+       if (slanted(char_) && mi.base.fontname == "mathnormal") {
+               MathShapeChanger dummy(mi.base.font, LyXFont::ITALIC_SHAPE);
+               mathed_char_dim(mi.base.font, char_, ascent_, descent_, width_);
+       } else {
+               mathed_char_dim(mi.base.font, char_, ascent_, descent_, width_);
+       }
+       if (isBinaryOp(char_))
+               width_ += 2 * font_metrics::width(' ', mi.base.font);
+#else
+       whichFont(font_, code_, mi);
+       mathed_char_dim(font_, char_, ascent_, descent_, width_);
+       if (isBinaryOp(char_, code_))
+               width_ += 2 * font_metrics::width(' ', font_);
+#endif
 }
 
 
-int MathCharInset::descent() const
+void MathCharInset::draw(MathPainterInfo & pi, int x, int y) const
 {
-       return mathed_char_descent(code_, size(), char_);
+       //lyxerr << "drawing '" << char_ << "' font: " << pi.base.fontname << endl;
+       if (isBinaryOp(char_))
+               x += font_metrics::width(' ', pi.base.font);
+#if 1
+       if (slanted(char_) && pi.base.fontname == "mathnormal") {
+               MathShapeChanger dummy(pi.base.font, LyXFont::ITALIC_SHAPE);
+               pi.draw(x, y, char_);
+       } else {
+               pi.draw(x, y, char_);
+       }
+#else
+       drawChar(pain, font_, x, y, char_);
+#endif
 }
 
 
-int MathCharInset::width() const
+void MathCharInset::metricsT(TextMetricsInfo const &) const
 {
-       return mathed_char_width(code_, size(), char_);
+       width_   = 1;
+       ascent_  = 1;
+       descent_ = 0;
 }
 
 
-void MathCharInset::metrics(MathStyles st) const
+void MathCharInset::drawT(TextPainter & pain, int x, int y) const
 {
-       size_ = st;
+       //lyxerr << "drawing text '" << char_ << "' code: " << code_ << endl;
+       pain.draw(x, y, char_);
 }
 
 
-void MathCharInset::draw(Painter & pain, int x, int y) const
-{ 
-       xo(x);
-       yo(y);
-       drawChar(pain, code_, size_, x, y, char_);
+void MathCharInset::write(WriteStream & os) const
+{
+       os << char_;
 }
 
 
-void MathCharInset::write(std::ostream & os, bool) const
+void MathCharInset::normalize(NormalStream & os) const
 {
-       int brace = 0;
+       os << "[char " << char_ << " " << "mathalpha" << "]";
+}
 
-       if (MathIsSymbol(code_)) {
-               latexkeys const * l = lm_get_key_by_id(char_, LM_TK_SYM);
 
-               if (l == 0) 
-                       l = lm_get_key_by_id(char_, LM_TK_BIGSYM);
+void MathCharInset::octavize(OctaveStream & os) const
+{
+       os << char_;
+}
 
-               if (l) {
-                       os << '\\' << l->name << ' ';
-               } else {
-                       lyxerr << "Could not find the LaTeX name for  " 
-                               << char_ << " and code_ " << code_ << "!" << std::endl;
-               }
-       } else {
-               if (code_ >= LM_TC_RM && code_ <= LM_TC_TEXTRM) 
-                       os << '\\' << math_font_name[code_ - LM_TC_RM] << '{';
-
-               // Is there a standard logical XOR?
-               if ((code_ == LM_TC_TEX && char_ != '{' && char_ != '}') ||
-                               (code_ == LM_TC_SPECIAL))
-                       os << '\\';
-               else {
-                       if (char_ == '{')
-                               ++brace;
-                       if (char_ == '}')
-                               --brace;
-               }
-               if (char_ == '}' && code_ == LM_TC_TEX && brace < 0) 
-                       lyxerr <<"Math warning: Unexpected closing brace.\n";
-               else           
-                       os << char_;
-       }
 
-       if (code_ >= LM_TC_RM && code_ <= LM_TC_TEXTRM)
-               os << '}';
+bool MathCharInset::isRelOp() const
+{
+       return char_ == '=' || char_ == '<' || char_ == '>';
 }
 
 
-void MathCharInset::writeNormal(std::ostream & os) const
+bool MathCharInset::match(MathInset * p) const
 {
-       os << "[sqrt ";
-       cell(0).writeNormal(os); 
-       os << "] ";
+       MathCharInset const * q = p->asCharInset();
+       return q && char_ == q->char_;
 }