oh well

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

diff --git a/src/mathed/math_charinset.C b/src/mathed/math_charinset.C
index 94a7bf8b48c92c7b1093d174daad29a84bb8f8eb..71a3609ccf4538710cfd28dca3a927b831ead7d6 100644 (file)
--- a/src/mathed/math_charinset.C
+++ b/src/mathed/math_charinset.C
@@ -1,108 +1,131 @@
+#include <config.h>
+
 #ifdef __GNUG__
 #pragma implementation
 #endif
 
-#include <cctype>
-
 #include "math_charinset.h"
 #include "LColor.h"
 #include "Painter.h"
 #include "support/LOstream.h"
-#include "mathed/support.h"
-#include "math_parser.h"
+#include "font.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;
+#endif
+
+
+bool isBinaryOp(char c, MathTextCodes type)
+{
+       return type < LM_TC_SYMB && strchr("+-<>=/*", c);
+}
 
 
 MathCharInset::MathCharInset(char c)
        : char_(c), code_(nativeCode(c))
 {
-       if (isalpha(c))
-               code_ = LM_TC_VAR;
+//lyxerr << "creating char '" << char_ << "' with code " << int(code_) << endl;
 }
 
 
 MathCharInset::MathCharInset(char c, MathTextCodes t)
        : char_(c), code_((t == LM_TC_MIN) ? nativeCode(c) : t)
-{}
+{
+//lyxerr << "creating char '" << char_ << "' with code " << int(code_) << endl;
+}
 
 
-MathTextCodes MathCharInset::nativeCode(char c) const
+MathTextCodes MathCharInset::nativeCode(char c)
 {
        if (isalpha(c))
                return LM_TC_VAR;
-       return LM_TC_MIN;
+       //if (strchr("0123456789;:!|[]().,?+/-*<>=", c)
+       return LM_TC_CONST;
 }
 
 
 MathInset * MathCharInset::clone() const
-{   
+{
        return new MathCharInset(*this);
 }
 
 
-int MathCharInset::ascent() const
+void MathCharInset::metrics(MathMetricsInfo const & mi) const
 {
-       return mathed_char_ascent(code_, size(), char_);
+       whichFont(font_, code_, mi);
+       mathed_char_dim(font_, char_, ascent_, descent_, width_);
+       if (isBinaryOp(char_, code_))
+               width_ += 2 * lyxfont::width(' ', font_);
 }
 
 
-int MathCharInset::descent() const
+void MathCharInset::draw(Painter & pain, int x, int y) const
 {
-       return mathed_char_descent(code_, size(), char_);
+       //lyxerr << "drawing '" << char_ << "' code: " << code_ << endl;
+       if (isBinaryOp(char_, code_))
+               x += lyxfont::width(' ', font_);
+       drawChar(pain, font_, x, y, char_);
 }
 
 
-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;
-}
-
-
-void MathCharInset::draw(Painter & pain, int x, int y) const
-{ 
-       xo(x);
-       yo(y);
-       drawChar(pain, code_, size_, x, y, char_);
+       //lyxerr << "drawing text '" << char_ << "' code: " << code_ << endl;
+       pain.draw(x, y, char_);
 }
 
 
-void MathCharInset::writeHeader(std::ostream & os) const
+void MathCharInset::writeHeader(ostream & os) const
 {
-       if (code_ >= LM_TC_RM && code_ <= LM_TC_TEXTRM) 
-               os << '\\' << math_font_name[code_ - LM_TC_RM] << '{';
+       if (math_font_name(code_))
+               os << '\\' << math_font_name(code_) << '{';
 }
 
 
-void MathCharInset::writeTrailer(std::ostream & os) const
+void MathCharInset::writeTrailer(ostream & os) const
 {
-       if (code_ >= LM_TC_RM && code_ <= LM_TC_TEXTRM)
+       if (math_font_name(code_))
                os << '}';
 }
 
 
-void MathCharInset::writeRaw(std::ostream & os) const
+void MathCharInset::writeRaw(ostream & os) const
 {
        os << char_;
 }
 
 
-void MathCharInset::write(std::ostream & os, bool) const
+void MathCharInset::write(WriteStream & os) const
 {
-       writeHeader(os);
-       writeRaw(os);
-       writeTrailer(os);
+       writeHeader(os.os());
+       writeRaw(os.os());
+       writeTrailer(os.os());
 }
 
 
-void MathCharInset::writeNormal(std::ostream & os) const
+void MathCharInset::normalize(NormalStream & os) const
 {
-       os << char_;
+       os << "[char " << char_ << " " << "mathalpha" << "]";
 }
 
 
@@ -116,3 +139,19 @@ void MathCharInset::handleFont(MathTextCodes t)
 {
        code_ = (code_ == t) ? LM_TC_VAR : t;
 }
+
+
+void MathCharInset::validate(LaTeXFeatures & features) const
+{
+       // Make sure amssymb is put in preamble if Blackboard Bold or
+       // Fraktur used:
+       if ((code_ == LM_TC_BB) || (code_ == LM_TC_EUFRAK))
+               features.require("amssymb");
+}
+
+
+bool MathCharInset::match(MathInset * p) const
+{
+       MathCharInset const * q = p->asCharInset();
+       return q && char_ == q->char_ && code_ == q->code_;
+}