-#ifdef __GNUG__
-#pragma implementation
-#endif
+/**
+ * \file math_charinset.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Alejandro Aguilar Sierra
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#include <config.h>
#include "math_charinset.h"
-#include "LColor.h"
-#include "Painter.h"
-#include "support/LOstream.h"
-#include "mathed/support.h"
-#include "math_parser.h"
+#include "math_support.h"
+#include "math_mathmlstream.h"
+
#include "debug.h"
+#include "dimension.h"
+#include "support/lstrings.h"
+#include "textpainter.h"
+using std::auto_ptr;
+
+extern bool has_math_fonts;
+
+namespace {
+
+ bool isBinaryOp(char c)
+ {
+ return lyx::support::contains("+-<>=/*", c);
+ }
+
+
+ bool slanted(char c)
+ {
+ return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z');
+ }
-MathCharInset::MathCharInset(char c, MathTextCodes t)
- : char_(c)
-{
- code(t);
}
-MathInset * MathCharInset::clone() const
-{
- return new MathCharInset(*this);
+MathCharInset::MathCharInset(char c)
+ : char_(c)
+{}
+
+
+
+auto_ptr<InsetBase> MathCharInset::doClone() const
+{
+ return auto_ptr<InsetBase>(new MathCharInset(*this));
}
-int MathCharInset::ascent() const
+void MathCharInset::metrics(MetricsInfo & mi, Dimension & dim) const
{
- return mathed_char_ascent(code_, size(), char_);
+#if 1
+ if (char_ == '=' && has_math_fonts) {
+ FontSetChanger dummy(mi.base, "cmr");
+ mathed_char_dim(mi.base.font, char_, dim);
+ } else if ((char_ == '>' || char_ == '<') && has_math_fonts) {
+ FontSetChanger dummy(mi.base, "cmm");
+ mathed_char_dim(mi.base.font, char_, dim);
+ } else if (!slanted(char_) && mi.base.fontname == "mathnormal") {
+ ShapeChanger dummy(mi.base.font, LyXFont::UP_SHAPE);
+ mathed_char_dim(mi.base.font, char_, dim);
+ } else {
+ mathed_char_dim(mi.base.font, char_, dim);
+ }
+ int const em = mathed_char_width(mi.base.font, 'M');
+ if (isBinaryOp(char_))
+ dim.wid += static_cast<int>(0.5*em+0.5);
+ else if (char_ == '\'')
+ dim.wid += static_cast<int>(0.1667*em+0.5);
+#else
+ whichFont(font_, code_, mi);
+ mathed_char_dim(font_, char_, dim_);
+ if (isBinaryOp(char_, code_))
+ width_ += 2 * font_metrics::width(' ', font_);
+ lyxerr << "MathCharInset::metrics: " << dim << endl;
+#endif
+ width_ = dim.wid;
}
-int MathCharInset::descent() const
+void MathCharInset::draw(PainterInfo & pi, int x, int y) const
{
- return mathed_char_descent(code_, size(), char_);
+ //lyxerr << "drawing '" << char_ << "' font: " << pi.base.fontname << endl;
+ int const em = mathed_char_width(pi.base.font, 'M');
+ if (isBinaryOp(char_))
+ x += static_cast<int>(0.25*em+0.5);
+ else if (char_ == '\'')
+ x += static_cast<int>(0.0833*em+0.5);
+#if 1
+ if (char_ == '=' && has_math_fonts) {
+ FontSetChanger dummy(pi.base, "cmr");
+ pi.draw(x, y, char_);
+ } else if ((char_ == '>' || char_ == '<') && has_math_fonts) {
+ FontSetChanger dummy(pi.base, "cmm");
+ pi.draw(x, y, char_);
+ } else if (!slanted(char_) && pi.base.fontname == "mathnormal") {
+ ShapeChanger dummy(pi.base.font, LyXFont::UP_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 &, Dimension & dim) const
{
- return mathed_char_width(code_, size(), char_);
+ dim.wid = 1;
+ dim.asc = 1;
+ dim.des = 0;
}
-void MathCharInset::draw(Painter & pain, int x, int y)
-{
- xo(x);
- yo(y);
- drawChar(pain, code_, size_, x, y, char_);
+void MathCharInset::drawT(TextPainter & pain, int x, int y) const
+{
+ //lyxerr << "drawing text '" << char_ << "' code: " << code_ << endl;
+ pain.draw(x, y, char_);
}
-void MathCharInset::write(std::ostream & os, bool) const
+void MathCharInset::write(WriteStream & os) const
{
- int brace = 0;
+ os << char_;
+}
- 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::normalize(NormalStream & os) const
+{
+ os << "[char " << char_ << ' ' << "mathalpha]";
+}
- 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::octave(OctaveStream & os) const
+{
+ os << char_;
}
-void MathCharInset::writeNormal(std::ostream & os) const
+bool MathCharInset::isRelOp() const
{
- os << "[sqrt ";
- cell(0).writeNormal(os);
- os << "] ";
+ return char_ == '=' || char_ == '<' || char_ == '>';
}