]> git.lyx.org Git - lyx.git/blobdiff - src/FontInfo.cpp
Account for old versions of Pygments
[lyx.git] / src / FontInfo.cpp
index 78655aeecfebd06535c26904e4eb9578fc1abbc1..da9387278bb1817de4ca884b8cf3957303120913 100644 (file)
 
 #include <config.h>
 
+#include "ColorSet.h"
 #include "FontInfo.h"
+#include "Lexer.h"
+#include "LyXRC.h"
 
+#include "support/convert.h"
 #include "support/debug.h"
 #include "support/docstring.h"
+#include "support/lstrings.h"
+#include "support/RefChanger.h"
+
+#include <algorithm>
+#include <ostream>
+#include <sstream>
 
 using namespace std;
+using namespace lyx::support;
 
 namespace lyx {
 
+//
+// Strings used to read and write .lyx format files
+//
+char const * LyXFamilyNames[NUM_FAMILIES + 2 /* default & error */] =
+{ "roman", "sans", "typewriter", "symbol",
+  "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "rsfs", "stmry",
+  "wasy", "esint", "default", "error" };
+
+char const * LyXSeriesNames[NUM_SERIES + 2 /* default & error */] =
+{ "medium", "bold", "default", "error" };
+
+char const * LyXShapeNames[NUM_SHAPE + 2 /* default & error */] =
+{ "up", "italic", "slanted", "smallcaps", "default", "error" };
+
+char const * LyXSizeNames[NUM_SIZE + 4 /* increase, decrease, default & error */] =
+{ "tiny", "scriptsize", "footnotesize", "small", "normal", "large",
+  "larger", "largest", "huge", "giant",
+  "increase", "decrease", "default", "error" };
+
+char const * LyXMiscNames[5] =
+{ "off", "on", "toggle", "default", "error" };
+
+
 FontInfo const sane_font(
        ROMAN_FAMILY,
        MEDIUM_SERIES,
@@ -36,6 +70,7 @@ FontInfo const sane_font(
        FONT_OFF,
        FONT_OFF,
        FONT_OFF,
+       FONT_OFF,
        FONT_OFF);
 
 FontInfo const inherit_font(
@@ -51,6 +86,7 @@ FontInfo const inherit_font(
        FONT_INHERIT,
        FONT_INHERIT,
        FONT_INHERIT,
+       FONT_INHERIT,
        FONT_OFF);
 
 FontInfo const ignore_font(
@@ -66,6 +102,7 @@ FontInfo const ignore_font(
        FONT_IGNORE,
        FONT_IGNORE,
        FONT_IGNORE,
+       FONT_IGNORE,
        FONT_IGNORE);
 
 
@@ -74,6 +111,7 @@ FontInfo::FontInfo()
        *this = sane_font;
 }
 
+
 /// Decreases font size_ by one
 FontInfo & FontInfo::decSize()
 {
@@ -136,6 +174,29 @@ FontInfo & FontInfo::incSize()
 }
 
 
+double FontInfo::realSize() const
+{
+       double d = convert<double>(lyxrc.font_sizes[size()]);
+       // The following is according to the average of the values in the
+       // definitions of \defaultscriptratio and \defaultscriptscriptratio in LaTeX
+       // font packages. No attempt is made to implement the actual values from
+       // \DefineMathSizes.
+       switch (style()) {
+       case LM_ST_DISPLAY:
+       case LM_ST_TEXT:
+               break;
+       case LM_ST_SCRIPT:
+               d *= .73;
+               break;
+       case LM_ST_SCRIPTSCRIPT:
+               d *= .55;
+               break;
+       }
+       // Never go below the smallest size
+       return max(d, convert<double>(lyxrc.font_sizes[FONT_SIZE_TINY]));
+}
+
+
 /// Reduce font to fall back to template where possible
 void FontInfo::reduce(FontInfo const & tmplt)
 {
@@ -153,6 +214,8 @@ void FontInfo::reduce(FontInfo const & tmplt)
                underbar_ = FONT_INHERIT;
        if (strikeout_ == tmplt.strikeout_)
                strikeout_ = FONT_INHERIT;
+       if (xout_ == tmplt.xout_)
+               xout_ = FONT_INHERIT;
        if (uuline_ == tmplt.uuline_)
                uuline_ = FONT_INHERIT;
        if (uwave_ == tmplt.uwave_)
@@ -195,6 +258,9 @@ FontInfo & FontInfo::realize(FontInfo const & tmplt)
        if (strikeout_ == FONT_INHERIT)
                strikeout_ = tmplt.strikeout_;
 
+       if (xout_ == FONT_INHERIT)
+               xout_ = tmplt.xout_;
+
        if (uuline_ == FONT_INHERIT)
                uuline_ = tmplt.uuline_;
 
@@ -214,6 +280,32 @@ FontInfo & FontInfo::realize(FontInfo const & tmplt)
 }
 
 
+Changer FontInfo::changeColor(ColorCode const color)
+{
+       return make_change(color_, color);
+}
+
+
+Changer FontInfo::changeShape(FontShape const shape)
+{
+       return make_change(shape_, shape);
+}
+
+
+Changer FontInfo::changeStyle(MathStyle const new_style)
+{
+       return make_change(style_, new_style);
+}
+
+
+Changer FontInfo::change(FontInfo font, bool realiz)
+{
+       if (realiz)
+               font.realize(*this);
+       return make_change(*this, font);
+}
+
+
 /// Updates a misc setting according to request
 static FontState setMisc(FontState newfont,
        FontState org)
@@ -278,6 +370,7 @@ void FontInfo::update(FontInfo const & newfont, bool toggleall)
        setEmph(setMisc(newfont.emph_, emph_));
        setUnderbar(setMisc(newfont.underbar_, underbar_));
        setStrikeout(setMisc(newfont.strikeout_, strikeout_));
+       setXout(setMisc(newfont.xout_, xout_));
        setUuline(setMisc(newfont.uuline_, uuline_));
        setUwave(setMisc(newfont.uwave_, uwave_));
        setNoun(setMisc(newfont.noun_, noun_));
@@ -301,8 +394,8 @@ bool FontInfo::resolved() const
                && shape_ != INHERIT_SHAPE && size_ != FONT_SIZE_INHERIT
                && emph_ != FONT_INHERIT && underbar_ != FONT_INHERIT
                && uuline_ != FONT_INHERIT && uwave_ != FONT_INHERIT
-               && strikeout_ != FONT_INHERIT && noun_ != FONT_INHERIT
-               && color_ != Color_inherit
+               && strikeout_ != FONT_INHERIT && xout_ != FONT_INHERIT
+               && noun_ != FONT_INHERIT && color_ != Color_inherit
                && background_ != Color_inherit);
 }
 
@@ -319,87 +412,117 @@ Color FontInfo::realColor() const
 
 namespace {
 
-       void appendSep(string & s1, string const & s2) {
-               if (s2.empty()) 
-                       return;
-               s1 += s1.empty() ? "" : "\n";
-               s1 += s2;
-       }
+void appendSep(string & s1, string const & s2)
+{
+       if (s2.empty())
+               return;
+       s1 += s1.empty() ? "" : "\n";
+       s1 += s2;
+}
 
 
-       string makeCSSTag(string const & key, string const & val)
-       {
-               return key + ": " + val + ";";
-       }
+string makeCSSTag(string const & key, string const & val)
+{
+       return key + ": " + val + ";";
+}
 
 
-       string getFamily(FontFamily const & f)
-       {
-               switch (f) {
-               case ROMAN_FAMILY: return "serif";
-               case SANS_FAMILY: return "sans-serif";
-               case TYPEWRITER_FAMILY: return "monospace";
-               case INHERIT_FAMILY: return "inherit";
-               default: break;
-               }
-               return "";
+string getFamilyCSS(FontFamily const & f)
+{
+       switch (f) {
+       case ROMAN_FAMILY:
+               return "serif";
+       case SANS_FAMILY:
+               return "sans-serif";
+       case TYPEWRITER_FAMILY:
+               return "monospace";
+       case SYMBOL_FAMILY:
+       case CMR_FAMILY:
+       case CMSY_FAMILY:
+       case CMM_FAMILY:
+       case CMEX_FAMILY:
+       case MSA_FAMILY:
+       case MSB_FAMILY:
+       case EUFRAK_FAMILY:
+       case RSFS_FAMILY:
+       case STMARY_FAMILY:
+       case WASY_FAMILY:
+       case ESINT_FAMILY:
+       case INHERIT_FAMILY:
+       case IGNORE_FAMILY:
+               break;
        }
+       return "";
+}
 
 
-       string getSeries(FontSeries const & s)
-       {
-               switch (s) {
-               case MEDIUM_SERIES: return "normal";
-               case BOLD_SERIES: return "bold";
-               case INHERIT_SERIES: return "inherit";
-               default: break;
-               }
-               return "";
+string getSeriesCSS(FontSeries const & s)
+{
+       switch (s) {
+       case MEDIUM_SERIES:
+               return "normal";
+       case BOLD_SERIES:
+               return "bold";
+       case INHERIT_SERIES:
+       case IGNORE_SERIES:
+               break;
        }
+       return "";
+}
 
 
-       string getShape(FontShape const & s)
-       {
-               string fs = "normal";
-               string fv = "normal";
-               switch (s) {
-               case UP_SHAPE: break;
-               case ITALIC_SHAPE: fs = "italic"; break;
-               case SLANTED_SHAPE: fs = "oblique"; break;
-               case SMALLCAPS_SHAPE: fv = "small-caps"; break;
-               case INHERIT_SHAPE: fs = "inherit"; fv = "inherit"; break;
-               case IGNORE_SHAPE: fs = ""; fv = ""; break;
-               }
-               string retval;
-               if (!fs.empty())
-                       appendSep(retval, makeCSSTag("font-style", fs));
-               if (!fv.empty())
-                       appendSep(retval, makeCSSTag("font-variant", fv));
-               return retval;
+string getShapeCSS(FontShape const & s)
+{
+       string fs = "normal";
+       string fv = "normal";
+       switch (s) {
+       case UP_SHAPE: break;
+       case ITALIC_SHAPE: fs = "italic"; break;
+       case SLANTED_SHAPE: fs = "oblique"; break;
+       case SMALLCAPS_SHAPE: fv = "small-caps"; break;
+       case IGNORE_SHAPE:
+       case INHERIT_SHAPE:
+               fs = ""; fv = ""; break;
        }
+       string retval;
+       if (!fs.empty())
+               appendSep(retval, makeCSSTag("font-style", fs));
+       if (!fv.empty())
+               appendSep(retval, makeCSSTag("font-variant", fv));
+       return retval;
+}
 
 
-       string getSize(FontSize const & s)
-       {
-               switch (s) {
-               case FONT_SIZE_TINY: return "xx-small";
-               case FONT_SIZE_SCRIPT: return "x-small";
-               case FONT_SIZE_FOOTNOTE: 
-               case FONT_SIZE_SMALL: return "small";
-               case FONT_SIZE_NORMAL: return "medium";
-               case FONT_SIZE_LARGE: return "large";
-               case FONT_SIZE_LARGER: 
-               case FONT_SIZE_LARGEST: return "x-large";
-               case FONT_SIZE_HUGE: 
-               case FONT_SIZE_HUGER: return "xx-large";
-               case FONT_SIZE_INCREASE: return "larger";
-               case FONT_SIZE_DECREASE: return "smaller";
-               case FONT_SIZE_INHERIT: return "inherit";
-               case FONT_SIZE_IGNORE: return "";
-               }       
-               // squash warning
-               return "";
+string getSizeCSS(FontSize const & s)
+{
+       switch (s) {
+       case FONT_SIZE_TINY:
+               return "xx-small";
+       case FONT_SIZE_SCRIPT:
+               return "x-small";
+       case FONT_SIZE_FOOTNOTE:
+       case FONT_SIZE_SMALL:
+               return "small";
+       case FONT_SIZE_NORMAL:
+               return "medium";
+       case FONT_SIZE_LARGE:
+               return "large";
+       case FONT_SIZE_LARGER:
+       case FONT_SIZE_LARGEST:
+               return "x-large";
+       case FONT_SIZE_HUGE:
+       case FONT_SIZE_HUGER:
+               return "xx-large";
+       case FONT_SIZE_INCREASE:
+               return "larger";
+       case FONT_SIZE_DECREASE:
+               return "smaller";
+       case FONT_SIZE_IGNORE:
+       case FONT_SIZE_INHERIT:
+               break;
        }
+       return "";
+}
        
 } // namespace anonymous
 
@@ -408,17 +531,235 @@ namespace {
 docstring FontInfo::asCSS() const 
 {
        string retval;
-       string tmp = getFamily(family_);
+       string tmp = getFamilyCSS(family_);
        if (!tmp.empty())
                appendSep(retval, makeCSSTag("font-family", tmp));
-       tmp = getSeries(series_);
+       tmp = getSeriesCSS(series_);
        if (!tmp.empty())
-               appendSep(retval, makeCSSTag("font-series", tmp));
-       appendSep(retval, getShape(shape_));
-       tmp = getSize(size_);
+               appendSep(retval, makeCSSTag("font-weight", tmp));
+       appendSep(retval, getShapeCSS(shape_));
+       tmp = getSizeCSS(size_);
        if (!tmp.empty())
                appendSep(retval, makeCSSTag("font-size", tmp));
        return from_ascii(retval);      
 }
 
+
+// Set family according to lyx format string
+void setLyXFamily(string const & fam, FontInfo & f)
+{
+       string const s = ascii_lowercase(fam);
+
+       int i = 0;
+       while (LyXFamilyNames[i] != s &&
+              LyXFamilyNames[i] != string("error"))
+               ++i;
+       if (s == LyXFamilyNames[i])
+               f.setFamily(FontFamily(i));
+       else
+               LYXERR0("Unknown family `" << s << '\'');
+}
+
+
+// Set series according to lyx format string
+void setLyXSeries(string const & ser, FontInfo & f)
+{
+       string const s = ascii_lowercase(ser);
+
+       int i = 0;
+       while (LyXSeriesNames[i] != s &&
+              LyXSeriesNames[i] != string("error")) ++i;
+       if (s == LyXSeriesNames[i]) {
+               f.setSeries(FontSeries(i));
+       } else
+               LYXERR0("Unknown series `" << s << '\'');
+}
+
+
+// Set shape according to lyx format string
+void setLyXShape(string const & sha, FontInfo & f)
+{
+       string const s = ascii_lowercase(sha);
+
+       int i = 0;
+       while (LyXShapeNames[i] != s && LyXShapeNames[i] != string("error"))
+                       ++i;
+       if (s == LyXShapeNames[i])
+               f.setShape(FontShape(i));
+       else
+               LYXERR0("Unknown shape `" << s << '\'');
+}
+
+
+// Set size according to lyx format string
+void setLyXSize(string const & siz, FontInfo & f)
+{
+       string const s = ascii_lowercase(siz);
+       int i = 0;
+       while (LyXSizeNames[i] != s && LyXSizeNames[i] != string("error"))
+               ++i;
+       if (s == LyXSizeNames[i]) {
+               f.setSize(FontSize(i));
+       } else
+               LYXERR0("Unknown size `" << s << '\'');
+}
+
+
+// Set size according to lyx format string
+FontState setLyXMisc(string const & siz)
+{
+       string const s = ascii_lowercase(siz);
+       int i = 0;
+       while (LyXMiscNames[i] != s &&
+              LyXMiscNames[i] != string("error")) ++i;
+       if (s == LyXMiscNames[i])
+               return FontState(i);
+       LYXERR0("Unknown misc flag `" << s << '\'');
+       return FONT_OFF;
+}
+
+
+/// Sets color after LyX text format
+void setLyXColor(string const & col, FontInfo & f)
+{
+       f.setColor(lcolor.getFromLyXName(col));
+}
+
+
+// Read a font definition from given file in lyx format
+// Used for layouts
+FontInfo lyxRead(Lexer & lex, FontInfo const & fi)
+{
+       FontInfo f = fi;
+       bool error = false;
+       bool finished = false;
+       while (!finished && lex.isOK() && !error) {
+               lex.next();
+               string const tok = ascii_lowercase(lex.getString());
+
+               if (tok.empty()) {
+                       continue;
+               } else if (tok == "endfont") {
+                       finished = true;
+               } else if (tok == "family") {
+                       lex.next();
+                       string const ttok = lex.getString();
+                       setLyXFamily(ttok, f);
+               } else if (tok == "series") {
+                       lex.next();
+                       string const ttok = lex.getString();
+                       setLyXSeries(ttok, f);
+               } else if (tok == "shape") {
+                       lex.next();
+                       string const ttok = lex.getString();
+                       setLyXShape(ttok, f);
+               } else if (tok == "size") {
+                       lex.next();
+                       string const ttok = lex.getString();
+                       setLyXSize(ttok, f);
+               } else if (tok == "misc") {
+                       lex.next();
+                       string const ttok = ascii_lowercase(lex.getString());
+
+                       if (ttok == "no_bar") {
+                               f.setUnderbar(FONT_OFF);
+                       } else if (ttok == "no_strikeout") {
+                               f.setStrikeout(FONT_OFF);
+                       } else if (ttok == "no_xout") {
+                               f.setXout(FONT_OFF);
+                       } else if (ttok == "no_uuline") {
+                               f.setUuline(FONT_OFF);
+                       } else if (ttok == "no_uwave") {
+                               f.setUwave(FONT_OFF);
+                       } else if (ttok == "no_emph") {
+                               f.setEmph(FONT_OFF);
+                       } else if (ttok == "no_noun") {
+                               f.setNoun(FONT_OFF);
+                       } else if (ttok == "emph") {
+                               f.setEmph(FONT_ON);
+                       } else if (ttok == "underbar") {
+                               f.setUnderbar(FONT_ON);
+                       } else if (ttok == "strikeout") {
+                               f.setStrikeout(FONT_ON);
+                       } else if (ttok == "xout") {
+                               f.setXout(FONT_ON);
+                       } else if (ttok == "uuline") {
+                               f.setUuline(FONT_ON);
+                       } else if (ttok == "uwave") {
+                               f.setUwave(FONT_ON);
+                       } else if (ttok == "noun") {
+                               f.setNoun(FONT_ON);
+                       } else {
+                               lex.printError("Illegal misc type");
+                       }
+               } else if (tok == "color") {
+                       lex.next();
+                       string const ttok = lex.getString();
+                       setLyXColor(ttok, f);
+               } else {
+                       lex.printError("Unknown tag");
+                       error = true;
+               }
+       }
+       return f;
+}
+
+
+void lyxWrite(ostream & os, FontInfo const & f, string const & start, int level)
+{
+       string indent;
+       for (int i = 0; i < level; ++i)
+               indent += '\t';
+       ostringstream oss;
+       if (f.family() != INHERIT_FAMILY)
+               oss << indent << "\tFamily " << LyXFamilyNames[f.family()]
+                   << '\n';
+       if (f.series() != INHERIT_SERIES)
+               oss << indent << "\tSeries " << LyXSeriesNames[f.series()]
+                   << '\n';
+       if (f.shape() != INHERIT_SHAPE)
+               oss << indent << "\tShape " << LyXShapeNames[f.shape()]
+                   << '\n';
+       if (f.size() != FONT_SIZE_INHERIT)
+               oss << indent << "\tSize " << LyXSizeNames[f.size()]
+                   << '\n';
+       if (f.underbar() == FONT_ON)
+               oss << indent << "\tMisc Underbar\n";
+       else if (f.underbar() == FONT_OFF)
+               oss << indent << "\tMisc No_Bar\n";
+       if (f.strikeout() == FONT_ON)
+               oss << indent << "\tMisc Strikeout\n";
+       else if (f.strikeout() == FONT_OFF)
+               oss << indent << "\tMisc No_Strikeout\n";
+       if (f.xout() == FONT_ON)
+               oss << indent << "\tMisc Xout\n";
+       else if (f.xout() == FONT_OFF)
+               oss << indent << "\tMisc No_Xout\n";
+       if (f.uuline() == FONT_ON)
+               oss << indent << "\tMisc Uuline\n";
+       else if (f.uuline() == FONT_OFF)
+               oss << indent << "\tMisc No_Uuline\n";
+       if (f.uwave() == FONT_ON)
+               oss << indent << "\tMisc Uwave\n";
+       else if (f.uwave() == FONT_OFF)
+               oss << indent << "\tMisc No_Uwave\n";
+       if (f.emph() == FONT_ON)
+               oss << indent << "\tMisc Emph\n";
+       else if (f.emph() == FONT_OFF)
+               oss << indent << "\tMisc No_Emph\n";
+       if (f.noun() == FONT_ON)
+               oss << indent << "\tMisc Noun\n";
+       else if (f.noun() == FONT_OFF)
+               oss << indent << "\tMisc No_Noun\n";
+       if (f.color() != Color_inherit && f.color() != Color_none)
+               oss << indent << "\tColor " << lcolor.getLyXName(f.color())
+                   << '\n';
+       if (!oss.str().empty()) {
+               os << indent << start << '\n'
+                  << oss.str()
+                  << indent << "EndFont\n";
+       }
+}
+
+
 } // namespace lyx