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https://git.lyx.org/repos/lyx.git
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c7c443e5e2
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3417 a592a061-630c-0410-9148-cb99ea01b6c8
138 lines
2.5 KiB
C
138 lines
2.5 KiB
C
#include <config.h>
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include <cctype>
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#include "math_charinset.h"
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#include "LColor.h"
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#include "Painter.h"
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#include "support/LOstream.h"
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#include "math_support.h"
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#include "math_parser.h"
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#include "debug.h"
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#include "math_mathmlstream.h"
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#include "LaTeXFeatures.h"
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MathCharInset::MathCharInset(char c)
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: char_(c), code_(nativeCode(c))
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{
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//lyxerr << "creating char '" << char_ << "' with code " << int(code_) << endl;
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}
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MathCharInset::MathCharInset(char c, MathTextCodes t)
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: char_(c), code_((t == LM_TC_MIN) ? nativeCode(c) : t)
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{
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//lyxerr << "creating char '" << char_ << "' with code " << int(code_) << endl;
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}
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MathTextCodes MathCharInset::nativeCode(char c)
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{
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if (isalpha(c))
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return LM_TC_VAR;
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//if (strchr("0123456789;:!|[]().,?+/-*<>=", c)
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return LM_TC_CONST;
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}
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MathInset * MathCharInset::clone() const
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{
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return new MathCharInset(*this);
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}
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int MathCharInset::ascent() const
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{
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return mathed_char_ascent(code_, mi_, char_);
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}
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int MathCharInset::descent() const
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{
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return mathed_char_descent(code_, mi_, char_);
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}
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int MathCharInset::width() const
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{
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return mathed_char_width(code_, mi_, char_);
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}
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void MathCharInset::metrics(MathMetricsInfo const & mi) const
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{
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mi_ = mi;
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}
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void MathCharInset::draw(Painter & pain, int x, int y) const
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{
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//lyxerr << "drawing '" << char_ << "' code: " << code_ << endl;
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drawChar(pain, code_, mi_, x, y, char_);
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}
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void MathCharInset::writeHeader(std::ostream & os) const
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{
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if (math_font_name(code_))
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os << '\\' << math_font_name(code_) << '{';
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}
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void MathCharInset::writeTrailer(std::ostream & os) const
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{
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if (math_font_name(code_))
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os << '}';
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}
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void MathCharInset::writeRaw(std::ostream & os) const
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{
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os << char_;
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}
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void MathCharInset::write(WriteStream & os) const
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{
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writeHeader(os.os());
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writeRaw(os.os());
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writeTrailer(os.os());
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}
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void MathCharInset::normalize(NormalStream & os) const
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{
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os << "[char " << char_ << " " << "mathalpha" << "]";
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}
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bool MathCharInset::isRelOp() const
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{
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return char_ == '=' || char_ == '<' || char_ == '>';
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}
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void MathCharInset::handleFont(MathTextCodes t)
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{
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code_ = (code_ == t) ? LM_TC_VAR : t;
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}
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void MathCharInset::validate(LaTeXFeatures & features) const
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{
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// Make sure amssymb is put in preamble if Blackboard Bold or
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// Fraktur used:
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if ( (code_ == LM_TC_BB) || (code_ == LM_TC_EUFRAK) )
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features.require("amssymb");
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}
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bool MathCharInset::match(MathInset * p) const
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{
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MathCharInset const * q = p->asCharInset();
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return q && char_ == q->char_ && code_ == q->code_;
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}
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