]> git.lyx.org Git - lyx.git/blobdiff - src/mathed/math_support.C
Andreas' patch to prevent crash on click on previewd inset
[lyx.git] / src / mathed / math_support.C
index 5d2df15c7815512a4647353abb9bb1fa80398363..f857d8e753c09c41c888ff3a1fb9bdad593b0e50 100644 (file)
@@ -1,22 +1,36 @@
-#include <config.h>
+/**
+ * \file math_support.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 <map>
+#include <config.h>
 
 #include "math_support.h"
-#include "lyxfont.h"
-#include "frontends/font_loader.h"
-#include "frontends/font_metrics.h"
-#include "math_cursor.h"
-#include "math_defs.h"
+#include "math_data.h"
 #include "math_inset.h"
+#include "math_mathmlstream.h"
 #include "math_parser.h"
-#include "frontends/Painter.h"
+
 #include "debug.h"
-#include "commandtags.h"
+#include "LColor.h"
 
-using std::map;
-using std::endl;
+#include "frontends/Painter.h"
+#include "frontends/font_metrics.h"
+#include "frontends/lyx_gui.h"
+
+#include <map>
+#include <sstream>
+
+
+using std::string;
 using std::max;
+using std::endl;
 
 
 ///
@@ -57,7 +71,7 @@ namespace {
 
 /*
  * Internal struct of a drawing: code n x1 y1 ... xn yn, where code is:
- * 0 = end, 1 = line, 2 = polyline, 3 = square line, 4= square polyline
+ * 0 = end, 1 = line, 2 = polyline, 3 = square line, 4 = square polyline
  */
 
 
@@ -230,7 +244,7 @@ double const  Vert[] = {
 
 double const tilde[] = {
        2, 4,
-       0.05, 0.8,  0.25, 0.2,  0.75, 0.8,  0.95, 0.2,
+       0.00, 0.8,  0.25, 0.2,  0.75, 0.8,  1.00, 0.2,
        0
 };
 
@@ -302,10 +316,10 @@ named_deco_struct deco_table[] = {
        {"check",          angle,      1 },
        {"breve",          parenth,    1 },
        {"vec",            arrow,      3 },
-       {"not",            slash,      0 },
        {"mathring",       ring,       0 },
 
        // Dots
+       {"dots",           hline3,     0 },
        {"ldots",          hline3,     0 },
        {"cdots",          hline3,     0 },
        {"vdots",          hline3,     1 },
@@ -318,10 +332,11 @@ named_deco_struct deco_table[] = {
 };
 
 
-map<string, deco_struct> deco_list;
+std::map<string, deco_struct> deco_list;
 
 // sort the table on startup
-struct init_deco_table {
+class init_deco_table {
+public:
        init_deco_table() {
                unsigned const n = sizeof(deco_table) / sizeof(deco_table[0]);
                for (named_deco_struct * p = deco_table; p != deco_table + n; ++p) {
@@ -338,7 +353,7 @@ static init_deco_table dummy;
 
 deco_struct const * search_deco(string const & name)
 {
-       map<string, deco_struct>::const_iterator p = deco_list.find(name);
+       std::map<string, deco_struct>::const_iterator p = deco_list.find(name);
        return (p == deco_list.end()) ? 0 : &(p->second);
 }
 
@@ -346,12 +361,11 @@ deco_struct const * search_deco(string const & name)
 } // namespace anon
 
 
-void mathed_char_dim(LyXFont const & font,
-       unsigned char c, int & asc, int & des, int & wid)
+void mathed_char_dim(LyXFont const & font, unsigned char c, Dimension & dim)
 {
-       des = font_metrics::descent(c, font);
-       asc = font_metrics::ascent(c, font);
-       wid = mathed_char_width(font, c);
+       dim.des = font_metrics::descent(c, font);
+       dim.asc = font_metrics::ascent(c, font);
+       dim.wid = mathed_char_width(font, c);
 }
 
 
@@ -373,15 +387,20 @@ int mathed_char_width(LyXFont const & font, unsigned char c)
 }
 
 
-void mathed_string_dim(LyXFont const & font,
-       string const & s, int & asc, int & des, int & wid)
+void mathed_string_dim(LyXFont const & font, string const & s, Dimension & dim)
 {
-       asc = des = 0;
+#if 1
+       dim.asc = 0;
+       dim.des = 0;
        for (string::const_iterator it = s.begin(); it != s.end(); ++it) {
-               des = max(des, font_metrics::descent(*it, font));
-               asc = max(asc, font_metrics::ascent(*it, font));
+               dim.asc = max(dim.asc, font_metrics::ascent(*it, font));
+               dim.des = max(dim.des, font_metrics::descent(*it, font));
        }
-       wid = font_metrics::width(s, font);
+#else
+       dim.asc = font_metrics::maxAscent(font);
+       dim.des = font_metrics::maxDescent(font);
+#endif
+       dim.wid = font_metrics::width(s, font);
 }
 
 
@@ -391,38 +410,19 @@ int mathed_string_width(LyXFont const & font, string const & s)
 }
 
 
-int mathed_string_ascent(LyXFont const & font, string const & s)
-{
-       int asc = 0;
-       for (string::const_iterator it = s.begin(); it != s.end(); ++it)
-               asc = max(asc, font_metrics::ascent(*it, font));
-       return asc;
-}
-
-
-int mathed_string_descent(LyXFont const & font, string const & s)
-{
-       int des = 0;
-       for (string::const_iterator it = s.begin(); it != s.end(); ++it)
-               des = max(des, font_metrics::descent(*it, font));
-       return des;
-}
-
-
-
-void mathed_draw_deco(MathPainterInfo & pain, int x, int y, int w, int h,
-       const string & name)
+void mathed_draw_deco(PainterInfo & pi, int x, int y, int w, int h,
+       string const & name)
 {
        if (name == ".") {
-               pain.pain.line(x + w/2, y, x + w/2, y + h,
-                         LColor::mathcursor, Painter::line_onoffdash);
+               pi.pain.line(x + w/2, y, x + w/2, y + h,
+                         LColor::cursor, Painter::line_onoffdash);
                return;
        }
 
        deco_struct const * mds = search_deco(name);
        if (!mds) {
-               lyxerr << "Deco was not found. Programming error?\n";
-               lyxerr << "name: '" << name << "'\n";
+               lyxerr << "Deco was not found. Programming error?" << endl;
+               lyxerr << "name: '" << name << "'" << endl;
                return;
        }
 
@@ -454,49 +454,33 @@ void mathed_draw_deco(MathPainterInfo & pain, int x, int y, int w, int h,
                        else
                                mt.transform(xx, yy);
                        mt.transform(x2, y2);
-                       pain.pain.line(
-                               x + int(xx + 0.5), y + int(yy + 0.5),
-                               x + int(x2 + 0.5), y + int(y2 + 0.5),
+                       pi.pain.line(
+                               int(x + xx + 0.5), int(y + yy + 0.5),
+                               int(x + x2 + 0.5), int(y + y2 + 0.5),
                                LColor::math);
-               }       else {
+               } else {
                        int xp[32];
                        int yp[32];
                        int const n = int(d[i++]);
                        for (int j = 0; j < n; ++j) {
                                double xx = d[i++];
                                double yy = d[i++];
-//          lyxerr << " " << xx << " " << yy << " ";
+//          lyxerr << ' ' << xx << ' ' << yy << ' ';
                                if (code == 4)
                                        sqmt.transform(xx, yy);
                                else
                                        mt.transform(xx, yy);
-                               xp[j] = x + int(xx + 0.5);
-                               yp[j] = y + int(yy + 0.5);
-                               //  lyxerr << "P[" << j " " << xx << " " << yy << " " << x << " " << y << "]";
+                               xp[j] = int(x + xx + 0.5);
+                               yp[j] = int(y + yy + 0.5);
+                               //  lyxerr << "P[" << j ' ' << xx << ' ' << yy << ' ' << x << ' ' << y << ']';
                        }
-                       pain.pain.lines(xp, yp, n, LColor::math);
+                       pi.pain.lines(xp, yp, n, LColor::math);
                }
        }
 }
 
 
-void mathed_draw_framebox(MathPainterInfo & pain, int x, int y, MathInset const * p)
-{
-       if (mathcursor && mathcursor->isInside(p))
-               pain.pain.rectangle(x, y - p->ascent(), p->width(), p->height(),
-                       LColor::mathframe);
-}
-
-
-// In the future maybe we use a better fonts renderer
-void drawStr(MathPainterInfo & pain, LyXFont const & font,
-       int x, int y, string const & str)
-{
-       pain.pain.text(x, y, str, font);
-}
-
-
-void drawStrRed(MathPainterInfo & pi, int x, int y, string const & str)
+void drawStrRed(PainterInfo & pi, int x, int y, string const & str)
 {
        LyXFont f = pi.base.font;
        f.setColor(LColor::latex);
@@ -504,20 +488,14 @@ void drawStrRed(MathPainterInfo & pi, int x, int y, string const & str)
 }
 
 
-void drawStrBlack(MathPainterInfo & pi, int x, int y, string const & str)
+void drawStrBlack(PainterInfo & pi, int x, int y, string const & str)
 {
        LyXFont f = pi.base.font;
-       f.setColor(LColor::black);
+       f.setColor(LColor::foreground);
        pi.pain.text(x, y, str, f);
 }
 
 
-void drawChar(MathPainterInfo & pi, LyXFont const & font, int x, int y, char c)
-{
-       pi.pain.text(x, y, c, font);
-}
-
-
 void math_font_max_dim(LyXFont const & font, int & asc, int & des)
 {
        asc = font_metrics::maxAscent(font);
@@ -525,28 +503,6 @@ void math_font_max_dim(LyXFont const & font, int & asc, int & des)
 }
 
 
-string convertDelimToLatexName(string const & name)
-{
-       if (name == "(")
-               return name;
-       if (name == "[")
-               return name;
-       if (name == ".")
-               return name;
-       if (name == ")")
-               return name;
-       if (name == "]")
-               return name;
-       if (name == "/")
-               return name;
-       if (name == "|")
-               return name;
-       return "\\" + name + " ";
-}
-
-
-
-
 struct fontinfo {
        string cmd_;
        LyXFont::FONT_FAMILY family_;
@@ -556,107 +512,201 @@ struct fontinfo {
 };
 
 
-LyXFont::FONT_FAMILY const def_family = LyXFont::INHERIT_FAMILY;
-LyXFont::FONT_SERIES const def_series = LyXFont::INHERIT_SERIES;
-LyXFont::FONT_SHAPE  const def_shape  = LyXFont::INHERIT_SHAPE; 
-
+LyXFont::FONT_FAMILY const inh_family = LyXFont::INHERIT_FAMILY;
+LyXFont::FONT_SERIES const inh_series = LyXFont::INHERIT_SERIES;
+LyXFont::FONT_SHAPE  const inh_shape  = LyXFont::INHERIT_SHAPE;
 
 
+// mathnormal should be the first, otherwise the fallback further down
+// does not work
 fontinfo fontinfos[] = {
-       {"cmex",   LyXFont::CMEX_FAMILY, def_series, def_shape, LColor::math},
-       {"cmm",    LyXFont::CMM_FAMILY, def_series, def_shape, LColor::math},
-       {"cmr",    LyXFont::CMR_FAMILY, def_series, def_shape, LColor::math},
-       {"cmsy",   LyXFont::CMSY_FAMILY, def_series, def_shape, LColor::math},
-       {"eufrak", LyXFont::EUFRAK_FAMILY, def_series, def_shape, LColor::math},
-       {"mathbf", def_family, LyXFont::BOLD_SERIES, def_shape, LColor::math},
-       {"mathcal",LyXFont::CMSY_FAMILY, def_series, def_shape, LColor::math},
-       {"mathnormal", def_family,def_series, LyXFont::ITALIC_SHAPE, LColor::math},
-       {"mathrm", LyXFont::ROMAN_FAMILY, def_series, def_shape, LColor::math},
-       {"mathsf", LyXFont::SANS_FAMILY, def_series, def_shape, LColor::math},
-       {"msa",    LyXFont::MSA_FAMILY, def_series, def_shape, LColor::math},
-       {"msb",    LyXFont::MSB_FAMILY, def_series, def_shape, LColor::math},
-       {"textbf", def_family, LyXFont::BOLD_SERIES, def_shape, LColor::black},
-       {"textit", def_family, def_series, LyXFont::ITALIC_SHAPE, LColor::black},
-       {"textmd", def_family, LyXFont::MEDIUM_SERIES, def_shape, LColor::black},
-       {"textnormal", def_family, def_series, LyXFont::UP_SHAPE, LColor::black},
-       {"textrm", LyXFont::ROMAN_FAMILY, def_series,LyXFont::UP_SHAPE,LColor::black},
-       {"textsc", def_family, def_series, LyXFont::SMALLCAPS_SHAPE, LColor::black},
-       {"textsf", LyXFont::SANS_FAMILY, def_series, def_shape, LColor::black},
-       {"textsl", def_family, def_series, LyXFont::SLANTED_SHAPE, LColor::black},
-       {"texttt", LyXFont::TYPEWRITER_FAMILY, def_series, def_shape, LColor::black},
-       {"textup", def_family, def_series, LyXFont::UP_SHAPE, LColor::black},
-
-       {"lyxtex", def_family, def_series, def_shape, LColor::latex},
-       {"lyxsymbol", LyXFont::SYMBOL_FAMILY, def_series, def_shape, LColor::math},
-       {"lyxitsymbol", LyXFont::SYMBOL_FAMILY, def_series, LyXFont::ITALIC_SHAPE, LColor::math},
+       // math fonts
+       {"mathnormal",    LyXFont::ROMAN_FAMILY, LyXFont::MEDIUM_SERIES,
+                         LyXFont::ITALIC_SHAPE, LColor::math},
+       {"mathbf",        inh_family, LyXFont::BOLD_SERIES,
+                         inh_shape, LColor::math},
+       {"mathcal",       LyXFont::CMSY_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"mathfrak",      LyXFont::EUFRAK_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"mathrm",        LyXFont::ROMAN_FAMILY, inh_series,
+                         LyXFont::UP_SHAPE, LColor::math},
+       {"mathsf",        LyXFont::SANS_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"mathbb",        LyXFont::MSB_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"mathtt",        LyXFont::TYPEWRITER_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"mathit",        inh_family, inh_series,
+                         LyXFont::ITALIC_SHAPE, LColor::math},
+       {"cmex",          LyXFont::CMEX_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"cmm",           LyXFont::CMM_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"cmr",           LyXFont::CMR_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"cmsy",          LyXFont::CMSY_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"eufrak",        LyXFont::EUFRAK_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"msa",           LyXFont::MSA_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"msb",           LyXFont::MSB_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"wasy",          LyXFont::WASY_FAMILY, inh_series,
+                         inh_shape, LColor::none},
+
+       // Text fonts
+       {"text",          inh_family, inh_series,
+                         inh_shape, LColor::foreground},
+       {"textbf",        inh_family, LyXFont::BOLD_SERIES,
+                         inh_shape, LColor::foreground},
+       {"textit",        inh_family, inh_series,
+                         LyXFont::ITALIC_SHAPE, LColor::foreground},
+       {"textmd",        inh_family, LyXFont::MEDIUM_SERIES,
+                         inh_shape, LColor::foreground},
+       {"textnormal",    inh_family, inh_series,
+                         LyXFont::UP_SHAPE, LColor::foreground},
+       {"textrm",        LyXFont::ROMAN_FAMILY,
+                         inh_series, LyXFont::UP_SHAPE,LColor::foreground},
+       {"textsc",        inh_family, inh_series,
+                         LyXFont::SMALLCAPS_SHAPE, LColor::foreground},
+       {"textsf",        LyXFont::SANS_FAMILY, inh_series,
+                         inh_shape, LColor::foreground},
+       {"textsl",        inh_family, inh_series,
+                         LyXFont::SLANTED_SHAPE, LColor::foreground},
+       {"texttt",        LyXFont::TYPEWRITER_FAMILY, inh_series,
+                         inh_shape, LColor::foreground},
+       {"textup",        inh_family, inh_series,
+                         LyXFont::UP_SHAPE, LColor::foreground},
+
+       // TIPA support
+       {"textipa",       inh_family, inh_series,
+                         inh_shape, LColor::foreground},
+
+       // LyX internal usage
+       {"lyxtex",        inh_family, inh_series,
+                         LyXFont::UP_SHAPE, LColor::latex},
+       {"lyxsymbol",     LyXFont::SYMBOL_FAMILY, inh_series,
+                         inh_shape, LColor::math},
+       {"lyxboldsymbol", LyXFont::SYMBOL_FAMILY, LyXFont::BOLD_SERIES,
+                         inh_shape, LColor::math},
+       {"lyxblacktext",  LyXFont::ROMAN_FAMILY, LyXFont::MEDIUM_SERIES,
+                         LyXFont::UP_SHAPE, LColor::foreground},
+       {"lyxnochange",   inh_family, inh_series,
+                         inh_shape, LColor::foreground},
+       {"lyxfakebb",     LyXFont::TYPEWRITER_FAMILY, LyXFont::BOLD_SERIES,
+                         LyXFont::UP_SHAPE, LColor::math},
+       {"lyxfakecal",    LyXFont::SANS_FAMILY, LyXFont::MEDIUM_SERIES,
+                         LyXFont::ITALIC_SHAPE, LColor::math},
+       {"lyxfakefrak",   LyXFont::ROMAN_FAMILY, LyXFont::BOLD_SERIES,
+                         LyXFont::ITALIC_SHAPE, LColor::math}
 };
 
 
-fontinfo * searchFont(string const & name)
+fontinfo * lookupFont(string const & name)
 {
+       //lyxerr << "searching font '" << name << "'" << endl;
        int const n = sizeof(fontinfos) / sizeof(fontinfo);
-       //lyxerr << "searching font '" << name << "'\n"; 
        for (int i = 0; i < n; ++i)
                if (fontinfos[i].cmd_ == name) {
-                       //lyxerr << "found '" << i << "'\n"; 
+                       //lyxerr << "found '" << i << "'" << endl;
                        return fontinfos + i;
                }
-       return searchFont("mathnormal");
+       return 0;
 }
 
 
-void augmentFont(LyXFont & font, string const & name)
+fontinfo * searchFont(string const & name)
 {
-       static bool initialized = false;
-       
-       if (!initialized) {
-               initialized = true;
+       fontinfo * f = lookupFont(name);
+       return f ? f : fontinfos;
+       // this should be mathnormal
+       //return searchFont("mathnormal");
+}
 
-               LyXFont f1;
-               augmentFont(f1, "msb");
-               if (!fontloader.available(f1)) {
-                       lyxerr << "faking msb\n";
-                       fontinfo * info = searchFont("msb");
-                       info->family_ = LyXFont::TYPEWRITER_FAMILY;
-                       info->series_ = LyXFont::BOLD_SERIES;
-               }
 
-               LyXFont f2;
-               augmentFont(f2, "msex");
-               if (!fontloader.available(f2)) {
-                       lyxerr << "faking msex\n";
-                       fontinfo * info = searchFont("msex");
-                       info->family_ = LyXFont::SANS_FAMILY;
-                       info->series_ = LyXFont::BOLD_SERIES;
-                       info->shape_  = LyXFont::ITALIC_SHAPE;
-               }
+bool isFontName(string const & name)
+{
+       return lookupFont(name);
+}
+
+
+LyXFont getFont(string const & name)
+{
+       LyXFont font;
+       augmentFont(font, name);
+       return font;
+}
 
-               //{"fakebb", LyXFont::TYPEWRITER_FAMILY, LyXFont::BOLD_SERIES,
-               //      LyXFont::UP_SHAPE, LColor::math},
-               //{"fakecal", LyXFont::SANS_FAMILY, LyXFont::MEDIUM_SERIES,
-               //      LyXFont::ITALIC_SHAPE, LColor::math},
-               //{"fakefrak", LyXFont::SANS_FAMILY, LyXFont::BOLD_SERIES,
-               //      LyXFont::ITALIC_SHAPE, LColor::math}
 
+void fakeFont(string const & orig, string const & fake)
+{
+       fontinfo * forig = searchFont(orig);
+       fontinfo * ffake = searchFont(fake);
+       if (forig && ffake) {
+               forig->family_ = ffake->family_;
+               forig->series_ = ffake->series_;
+               forig->shape_  = ffake->shape_;
+               forig->color_  = ffake->color_;
+       } else {
+               lyxerr << "Can't fake font '" << orig << "' with '"
+                      << fake << "'" << endl;
        }
+}
 
 
+void augmentFont(LyXFont & font, string const & name)
+{
+       static bool initialized = false;
+       if (!initialized) {
+               initialized = true;
+               // fake fonts if necessary
+               if (!lyx_gui::font_available(getFont("mathfrak")))
+                       fakeFont("mathfrak", "lyxfakefrak");
+               if (!lyx_gui::font_available(getFont("mathcal")))
+                       fakeFont("mathcal", "lyxfakecal");
+       }
        fontinfo * info = searchFont(name);
-       if (info->family_ != def_family)
+       if (info->family_ != inh_family)
                font.setFamily(info->family_);
-
-       if (info->series_ != def_series)
+       if (info->series_ != inh_series)
                font.setSeries(info->series_);
-
-       if (info->shape_ != def_shape)
+       if (info->shape_ != inh_shape)
                font.setShape(info->shape_);
-
        if (info->color_ != LColor::none)
                font.setColor(info->color_);
 }
 
 
-bool math_font_available(string const & /*name*/)
+string asString(MathArray const & ar)
+{
+       std::ostringstream os;
+       WriteStream ws(os);
+       ws << ar;
+       return os.str();
+}
+
+
+void asArray(string const & str, MathArray & ar)
+{
+       mathed_parse_cell(ar, str);
+}
+
+
+string asString(MathInset const & inset)
+{
+       std::ostringstream os;
+       WriteStream ws(os);
+       inset.write(ws);
+       return os.str();
+}
+
+
+string asString(MathAtom const & at)
 {
-       return true;
+       std::ostringstream os;
+       WriteStream ws(os);
+       at->write(ws);
+       return os.str();
 }