float2string #4 (Spacing)

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

diff --git a/src/mathed/math_charinset.C b/src/mathed/math_charinset.C
index 2d6ea5e72636af30901b93be6e6f2aeda196772e..8f2674bba30fc1e90ddb6f247783962f919b2afe 100644 (file)
--- a/src/mathed/math_charinset.C
+++ b/src/mathed/math_charinset.C
@@ -1,45 +1,40 @@
-#include <config.h>
+/**
+ * \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.
+ */
 
-#ifdef __GNUG__
-#pragma implementation
-#endif
+#include <config.h>
 
 #include "math_charinset.h"
-#include "LColor.h"
-#include "frontends/Painter.h"
-#include "frontends/font_metrics.h"
-#include "support/LOstream.h"
-#include "debug.h"
 #include "math_support.h"
 #include "math_mathmlstream.h"
-#include "LaTeXFeatures.h"
-#include "textpainter.h"
-
-#include <cctype>
-#include <cstring>
 
+#include "debug.h"
+#include "dimension.h"
+#include "support/lstrings.h"
+#include "textpainter.h"
 
-using std::ostream;
-using std::endl;
-
-#ifndef CXX_GLOBAL_CSTD
-using std::strchr;
-using std::isalpha;
-#endif
+using std::auto_ptr;
 
+extern bool has_math_fonts;
 
 namespace {
 
        bool isBinaryOp(char c)
        {
-               return strchr("+-<>=/*", c);
+               return lyx::support::contains("+-<>=/*", c);
        }
 
 
        bool slanted(char c)
        {
-               //if (strchr("0123456789;:!|[]().,?+/-*<>=", c)
-               return isalpha(c);
+               return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z');
        }
 
 }
@@ -51,40 +46,60 @@ MathCharInset::MathCharInset(char c)
 
 
 
-MathInset * MathCharInset::clone() const
+auto_ptr<InsetBase> MathCharInset::doClone() const
 {
-       return new MathCharInset(*this);
+       return auto_ptr<InsetBase>(new MathCharInset(*this));
 }
 
 
-void MathCharInset::metrics(MathMetricsInfo & mi) const
+void MathCharInset::metrics(MetricsInfo & mi, Dimension & dim) const
 {
 #if 1
-       if (slanted(char_) && !mi.base.fontinset) {
-               MathShapeChanger dummy(mi.base.font, LyXFont::ITALIC_SHAPE);
-               mathed_char_dim(mi.base.font, char_, ascent_, descent_, width_);
+       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_, ascent_, descent_, width_);
+               mathed_char_dim(mi.base.font, char_, dim);
        }
+       int const em = mathed_char_width(mi.base.font, 'M');
        if (isBinaryOp(char_))
-               width_ += 2 * font_metrics::width(' ', mi.base.font);
+               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_, ascent_, descent_, width_);
+       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;
 }
 
 
-void MathCharInset::draw(MathPainterInfo & pi, int x, int y) const
+void MathCharInset::draw(PainterInfo & pi, int x, int y) const
 {
-       //lyxerr << "drawing '" << char_ << "' code: " << pi.code << endl;
+       //lyxerr << "drawing '" << char_ << "' font: " << pi.base.fontname << endl;
+       int const em = mathed_char_width(pi.base.font, 'M');
        if (isBinaryOp(char_))
-               x += font_metrics::width(' ', pi.base.font);
+               x += static_cast<int>(0.25*em+0.5);
+       else if (char_ == '\'')
+               x += static_cast<int>(0.0833*em+0.5);
 #if 1
-       if (slanted(char_) && !pi.base.fontinset) {
-               MathShapeChanger dummy(pi.base.font, LyXFont::ITALIC_SHAPE);
+       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_);
@@ -95,11 +110,11 @@ void MathCharInset::draw(MathPainterInfo & pi, int x, int y) const
 }
 
 
-void MathCharInset::metricsT(TextMetricsInfo const &) const
+void MathCharInset::metricsT(TextMetricsInfo const &, Dimension & dim) const
 {
-       width_   = 1;
-       ascent_  = 1;
-       descent_ = 0;
+       dim.wid = 1;
+       dim.asc = 1;
+       dim.des = 0;
 }
 
 
@@ -118,18 +133,17 @@ void MathCharInset::write(WriteStream & os) const
 
 void MathCharInset::normalize(NormalStream & os) const
 {
-       os << "[char " << char_ << " " << "mathalpha" << "]";
+       os << "[char " << char_ << ' ' << "mathalpha]";
 }
 
 
-bool MathCharInset::isRelOp() const
+void MathCharInset::octave(OctaveStream & os) const
 {
-       return char_ == '=' || char_ == '<' || char_ == '>';
+       os << char_;
 }
 
 
-bool MathCharInset::match(MathInset * p) const
+bool MathCharInset::isRelOp() const
 {
-       MathCharInset const * q = p->asCharInset();
-       return q && char_ == q->char_;
+       return char_ == '=' || char_ == '<' || char_ == '>';
 }