lyx_mirror/src/mathed/math_charinset.C
André Pönitz aed2b1804c make operator<<(*stream, ...) free functions;
make *stream 'class' instead of 'struct' (not finished);
use LCOlor::mathline only for boxes.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3140 a592a061-630c-0410-9148-cb99ea01b6c8
2001-12-03 16:24:50 +00:00

128 lines
2.2 KiB
C

#ifdef __GNUG__
#pragma implementation
#endif
#include <cctype>
#include "math_charinset.h"
#include "LColor.h"
#include "Painter.h"
#include "support/LOstream.h"
#include "math_support.h"
#include "math_parser.h"
#include "debug.h"
#include "math_mathmlstream.h"
MathCharInset::MathCharInset(char c)
: char_(c), code_(nativeCode(c))
{
//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
{
if (isalpha(c))
return LM_TC_VAR;
//if (strchr("0123456789;:!|[]().,?+/-*<>=", c)
return LM_TC_CONST;
}
MathInset * MathCharInset::clone() const
{
return new MathCharInset(*this);
}
int MathCharInset::ascent() const
{
return mathed_char_ascent(code_, mi_, char_);
}
int MathCharInset::descent() const
{
return mathed_char_descent(code_, mi_, char_);
}
int MathCharInset::width() const
{
return mathed_char_width(code_, mi_, char_);
}
void MathCharInset::metrics(MathMetricsInfo const & mi) const
{
mi_ = mi;
}
void MathCharInset::draw(Painter & pain, int x, int y) const
{
//lyxerr << "drawing '" << char_ << "' code: " << code_ << endl;
drawChar(pain, code_, mi_, x, y, char_);
}
void MathCharInset::writeHeader(std::ostream & os) const
{
if (math_font_name(code_))
os << '\\' << math_font_name(code_) << '{';
}
void MathCharInset::writeTrailer(std::ostream & os) const
{
if (math_font_name(code_))
os << '}';
}
void MathCharInset::writeRaw(std::ostream & os) const
{
os << char_;
}
void MathCharInset::write(WriteStream & os) const
{
writeHeader(os.os());
writeRaw(os.os());
writeTrailer(os.os());
}
void MathCharInset::normalize(NormalStream & os) const
{
os << "[char " << char_ << " " << "mathalpha" << "]";
}
bool MathCharInset::isRelOp() const
{
return char_ == '=' || char_ == '<' || char_ == '>';
}
void MathCharInset::handleFont(MathTextCodes t)
{
code_ = (code_ == t) ? LM_TC_VAR : t;
}
bool MathCharInset::match(MathInset * p) const
{
MathCharInset const * q = p->asCharInset();
return q && char_ == q->char_ && code_ == q->code_;
}