git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2423 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
André Pönitz 2001-08-06 06:23:09 +00:00
parent 68f3c62aa4
commit c325dd2bd5
2 changed files with 141 additions and 0 deletions

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#ifdef __GNUG__
#pragma implementation
#endif
#include "math_charinset.h"
#include "LColor.h"
#include "Painter.h"
#include "support/LOstream.h"
#include "mathed/support.h"
#include "math_parser.h"
#include "debug.h"
MathCharInset::MathCharInset(char c, MathTextCodes t)
: char_(c)
{
code(t);
}
MathInset * MathCharInset::clone() const
{
return new MathCharInset(*this);
}
int MathCharInset::ascent() const
{
return mathed_char_ascent(code_, size(), char_);
}
int MathCharInset::descent() const
{
return mathed_char_descent(code_, size(), char_);
}
int MathCharInset::width() const
{
return mathed_char_width(code_, size(), char_);
}
void MathCharInset::draw(Painter & pain, int x, int y)
{
xo(x);
yo(y);
drawChar(pain, code_, size_, x, y, char_);
}
void MathCharInset::write(std::ostream & os, bool) const
{
int brace = 0;
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);
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 << '}';
}
void MathCharInset::writeNormal(std::ostream & os) const
{
os << "[sqrt ";
cell(0).writeNormal(os);
os << "] ";
}

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// -*- C++ -*-
#ifndef MATH_CHARINSET_H
#define MATH_CHARINSET_H
#include "math_inset.h"
#ifdef __GNUG__
#pragma interface
#endif
/** The base character inset.
\author André Pönitz
*/
class MathCharInset : public MathInset {
public:
///
MathCharInset(char c, MathTextCodes t);
///
MathInset * clone() const;
///
void draw(Painter &, int x, int baseline);
///
void write(std::ostream &, bool fragile) const;
///
void writeNormal(std::ostream &) const;
///
int ascent() const;
///
int descent() const;
///
int width() const;
/// identifies Charinsets
bool isCharInset() const { return true; }
///
char getChar() const { return char_; }
private:
/// the character
char char_;
};
#endif