]> git.lyx.org Git - lyx.git/blobdiff - src/insets/InsetSpecialChar.cpp
Use context-sensitive command termination
[lyx.git] / src / insets / InsetSpecialChar.cpp
index f863b27bc2bd84c2588b1f44c6245e72f707ea95..617c7f5331522e268954583207dbee2947da4c3b 100644 (file)
@@ -5,7 +5,7 @@
  *
  * \author Asger Alstrup Nielsen
  * \author Jean-Marc Lasgouttes
- * \author Lars Gullik Bjønnes
+ * \author Lars Gullik Bjønnes
  *
  * Full author contact details are available in file CREDITS.
  */
 
 #include "InsetSpecialChar.h"
 
-#include "debug.h"
+#include "Dimension.h"
+#include "Font.h"
 #include "LaTeXFeatures.h"
-#include "Color.h"
 #include "Lexer.h"
 #include "MetricsInfo.h"
+#include "output_xhtml.h"
+#include "texstream.h"
 
 #include "frontends/FontMetrics.h"
 #include "frontends/Painter.h"
 
+#include "support/debug.h"
+#include "support/docstream.h"
 
-namespace lyx {
+using namespace std;
 
-using std::string;
-using std::auto_ptr;
-using std::ostream;
+namespace lyx {
 
 
 InsetSpecialChar::InsetSpecialChar(Kind k)
-       : kind_(k)
+       : Inset(0), kind_(k)
 {}
 
 
@@ -42,59 +44,203 @@ InsetSpecialChar::Kind InsetSpecialChar::kind() const
 }
 
 
-bool InsetSpecialChar::metrics(MetricsInfo & mi, Dimension & dim) const
+namespace {
+
+int logoWidth(FontInfo const & font, InsetSpecialChar::Kind kind) {
+       frontend::FontMetrics const & fm = theFontMetrics(font);
+       int const em = fm.em();
+       int width = 0;
+       // See drawlogo() below to understand what this does.
+       switch (kind) {
+       case InsetSpecialChar::PHRASE_LYX:
+               width = fm.width(from_ascii("L")) - em / 6
+                       + fm.width(from_ascii("Y")) - em / 8
+                       + fm.width(from_ascii("X"));
+               break;
+
+       case InsetSpecialChar::PHRASE_TEX:
+               width = fm.width(from_ascii("T")) - em / 6
+                       + fm.width(from_ascii("E")) - em / 8
+                       + fm.width(from_ascii("X"));
+               break;
+
+       case InsetSpecialChar::PHRASE_LATEX2E:
+               width = logoWidth(font, InsetSpecialChar::PHRASE_LATEX)
+                       + 3 * em / 20
+                       + fm.width(from_ascii("2") + char_type(0x03b5));
+               break;
+       case InsetSpecialChar::PHRASE_LATEX: {
+               FontInfo smaller = font;
+               smaller.decSize().decSize();
+               width = fm.width(from_ascii("L")) - 9 * em / 25
+                       + theFontMetrics(smaller).width(from_ascii("A")) - 3 * em / 20
+                       + logoWidth(font, InsetSpecialChar::PHRASE_TEX);
+               break;
+       }
+       default:
+               LYXERR0("No information for computing width of logo " << kind);
+       }
+
+       return width;
+}
+
+}
+
+
+void InsetSpecialChar::metrics(MetricsInfo & mi, Dimension & dim) const
 {
        frontend::FontMetrics const & fm =
                theFontMetrics(mi.base.font);
        dim.asc = fm.maxAscent();
        dim.des = fm.maxDescent();
+       dim.wid = 0;
 
-       string s;
+       docstring s;
        switch (kind_) {
-               case LIGATURE_BREAK:      s = "|";     break;
-               case END_OF_SENTENCE:     s = ".";     break;
-               case LDOTS:               s = ". . ."; break;
-               case MENU_SEPARATOR:      s = " x ";   break;
-               case HYPHENATION:      s = "-";   break;
+               case LIGATURE_BREAK:
+                       s = from_ascii("|");
+                       break;
+               case END_OF_SENTENCE:
+                       s = from_ascii(".");
+                       break;
+               case LDOTS:
+                       s = from_ascii(". . .");
+                       break;
+               case MENU_SEPARATOR:
+                       s = from_ascii(" x ");
+                       break;
+               case HYPHENATION:
+                       dim.wid = fm.width(from_ascii("-"));
+                       if (dim.wid > 5)
+                               dim.wid -= 2; // to make it look shorter
+                       break;
+               case SLASH:
+                       s = from_ascii("/");
+                       break;
+               case NOBREAKDASH:
+                       s = from_ascii("-");
+                       break;
+               case PHRASE_LYX:
+               case PHRASE_TEX:
+               case PHRASE_LATEX2E:
+               case PHRASE_LATEX:
+                       dim.wid = logoWidth(mi.base.font, kind_);
+                       break;
+       }
+       if (dim.wid == 0)
+               dim.wid = fm.width(s);
+}
+
+
+namespace {
+
+// helper function: draw text and update x.
+void drawChar(PainterInfo & pi, int & x, int const y, char_type ch)
+{
+       FontInfo font = pi.base.font;
+       font.setPaintColor(pi.textColor(font.realColor()));
+       pi.pain.text(x, y, ch, font);
+       x += theFontMetrics(font).width(ch);
+}
+
+
+void drawLogo(PainterInfo & pi, int & x, int const y, InsetSpecialChar::Kind kind)
+{
+       FontInfo const & font = pi.base.font;
+       int const em = theFontMetrics(font).em();
+       switch (kind) {
+       case InsetSpecialChar::PHRASE_LYX:
+               /** Reference macro:
+                *  \providecommand{\LyX}{L\kern-.1667em\lower.25em\hbox{Y}\kern-.125emX\\@};
+                */
+               drawChar(pi, x, y, 'L');
+               x -= em / 6;
+               drawChar(pi, x, y + em / 4, 'Y');
+               x -= em / 8;
+               drawChar(pi, x, y, 'X');
+               break;
+
+       case InsetSpecialChar::PHRASE_TEX: {
+               /** Reference macro:
+                *  \def\TeX{T\kern-.1667em\lower.5ex\hbox{E}\kern-.125emX\@}
+                */
+               int const ex = theFontMetrics(font).ascent('x');
+               drawChar(pi, x, y, 'T');
+               x -= em / 6;
+               drawChar(pi, x, y + ex / 2, 'E');
+               x -= em / 8;
+               drawChar(pi, x, y, 'X');
+               break;
+       }
+       case InsetSpecialChar::PHRASE_LATEX2E:
+               /** Reference macro:
+                *  \DeclareRobustCommand{\LaTeXe}{\mbox{\m@th
+                *    \if b\expandafter\@car\f@series\@nil\boldmath\fi
+                *    \LaTeX\kern.15em2$_{\textstyle\varepsilon}$}}
+                */
+               drawLogo(pi, x, y, InsetSpecialChar::PHRASE_LATEX);
+               x += 3 * em / 20;
+               drawChar(pi, x, y, '2');
+               drawChar(pi, x, y + em / 4, char_type(0x03b5));
+               break;
+
+       case InsetSpecialChar::PHRASE_LATEX: {
+               /** Reference macro:
+                * \DeclareRobustCommand{\LaTeX}{L\kern-.36em%
+                *        {\sbox\z@ T%
+                *         \vbox to\ht\z@{\hbox{\check@mathfonts
+                *                              \fontsize\sf@size\z@
+                *                              \math@fontsfalse\selectfont
+                *                              A}%
+                *                        \vss}%
+                *        }%
+                *        \kern-.15em%
+                *        \TeX}
+                */
+               drawChar(pi, x, y, 'L');
+               x -= 9 * em / 25;
+               PainterInfo pi2 = pi;
+               pi2.base.font.decSize().decSize();
+               drawChar(pi2, x, y - em / 5, 'A');
+               x -= 3 * em / 20;
+               drawLogo(pi, x, y, InsetSpecialChar::PHRASE_TEX);
+               break;
+       }
+       default:
+               LYXERR0("No information for drawing logo " << kind);
        }
-        docstring ds(s.begin(), s.end());
-       dim.wid = fm.width(ds);
-       if (kind_ == HYPHENATION && dim.wid > 5)
-               dim.wid -= 2; // to make it look shorter
-       bool const changed = dim_ != dim;
-       dim_ = dim;
-       return changed;
 }
 
+}
 
 void InsetSpecialChar::draw(PainterInfo & pi, int x, int y) const
 {
-       LyXFont font = pi.base.font;
+       FontInfo font = pi.base.font;
 
        switch (kind_) {
        case HYPHENATION:
        {
-               font.setColor(Color::special);
+               font.setColor(Color_special);
                pi.pain.text(x, y, char_type('-'), font);
                break;
        }
        case LIGATURE_BREAK:
        {
-               font.setColor(Color::special);
+               font.setColor(Color_special);
                pi.pain.text(x, y, char_type('|'), font);
                break;
        }
        case END_OF_SENTENCE:
        {
-               font.setColor(Color::special);
+               font.setColor(Color_special);
                pi.pain.text(x, y, char_type('.'), font);
                break;
        }
        case LDOTS:
        {
-               font.setColor(Color::special);
-                string ell = ". . . ";
-                docstring dell(ell.begin(), ell.end());
+               font.setColor(Color_special);
+               string ell = ". . . ";
+               docstring dell(ell.begin(), ell.end());
                pi.pain.text(x, y, dell, font);
                break;
        }
@@ -104,7 +250,7 @@ void InsetSpecialChar::draw(PainterInfo & pi, int x, int y) const
                        theFontMetrics(font);
 
                // A triangle the width and height of an 'x'
-                int w = fm.width(char_type('x'));
+               int w = fm.width(char_type('x'));
                int ox = fm.width(char_type(' ')) + x;
                int h = fm.ascent(char_type('x'));
                int xp[4], yp[4];
@@ -114,32 +260,68 @@ void InsetSpecialChar::draw(PainterInfo & pi, int x, int y) const
                xp[2] = ox + w; yp[2] = y - h/2;
                xp[3] = ox;     yp[3] = y;
 
-               pi.pain.lines(xp, yp, 4, Color::special);
+               pi.pain.lines(xp, yp, 4, Color_special);
                break;
        }
+       case SLASH:
+       {
+               font.setColor(Color_special);
+               pi.pain.text(x, y, char_type('/'), font);
+               break;
+       }
+       case NOBREAKDASH:
+       {
+               font.setColor(Color_latex);
+               pi.pain.text(x, y, char_type('-'), font);
+               break;
+       }
+       case PHRASE_LYX:
+       case PHRASE_TEX:
+       case PHRASE_LATEX2E:
+       case PHRASE_LATEX:
+               drawLogo(pi, x, y, kind_);
+               break;
        }
 }
 
 
 // In lyxf3 this will be just LaTeX
-void InsetSpecialChar::write(Buffer const &, ostream & os) const
+void InsetSpecialChar::write(ostream & os) const
 {
        string command;
        switch (kind_) {
        case HYPHENATION:
-               command = "\\-";
+               command = "softhyphen";
                break;
        case LIGATURE_BREAK:
-               command = "\\textcompwordmark{}";
+               command = "ligaturebreak";
                break;
        case END_OF_SENTENCE:
-               command = "\\@.";
+               command = "endofsentence";
                break;
        case LDOTS:
-               command = "\\ldots{}";
+               command = "ldots";
                break;
        case MENU_SEPARATOR:
-               command = "\\menuseparator";
+               command = "menuseparator";
+               break;
+       case SLASH:
+               command = "breakableslash";
+               break;
+       case NOBREAKDASH:
+               command = "nobreakdash";
+               break;
+       case PHRASE_LYX:
+               command = "LyX";
+               break;
+       case PHRASE_TEX:
+               command = "TeX";
+               break;
+       case PHRASE_LATEX2E:
+               command = "LaTeX2e";
+               break;
+       case PHRASE_LATEX:
+               command = "LaTeX";
                break;
        }
        os << "\\SpecialChar " << command << "\n";
@@ -147,73 +329,136 @@ void InsetSpecialChar::write(Buffer const &, ostream & os) const
 
 
 // This function will not be necessary when lyx3
-void InsetSpecialChar::read(Buffer const &, Lexer & lex)
+void InsetSpecialChar::read(Lexer & lex)
 {
        lex.next();
        string const command = lex.getString();
 
-       if (command == "\\-")
+       if (command == "softhyphen")
                kind_ = HYPHENATION;
-       else if (command == "\\textcompwordmark{}")
+       else if (command == "ligaturebreak")
                kind_ = LIGATURE_BREAK;
-       else if (command == "\\@.")
+       else if (command == "endofsentence")
                kind_ = END_OF_SENTENCE;
-       else if (command == "\\ldots{}")
+       else if (command == "ldots")
                kind_ = LDOTS;
-       else if (command == "\\menuseparator")
+       else if (command == "menuseparator")
                kind_ = MENU_SEPARATOR;
+       else if (command == "breakableslash")
+               kind_ = SLASH;
+       else if (command == "nobreakdash")
+               kind_ = NOBREAKDASH;
+       else if (command == "LyX")
+               kind_ = PHRASE_LYX;
+       else if (command == "TeX")
+               kind_ = PHRASE_TEX;
+       else if (command == "LaTeX2e")
+               kind_ = PHRASE_LATEX2E;
+       else if (command == "LaTeX")
+               kind_ = PHRASE_LATEX;
        else
                lex.printError("InsetSpecialChar: Unknown kind: `$$Token'");
 }
 
 
-int InsetSpecialChar::latex(Buffer const &, odocstream & os,
-                           OutputParams const &) const
+void InsetSpecialChar::latex(otexstream & os,
+                            OutputParams const & rp) const
 {
        switch (kind_) {
        case HYPHENATION:
                os << "\\-";
                break;
        case LIGATURE_BREAK:
-               os << "\\textcompwordmark{}";
+               os << "\\textcompwordmark" << termcmd;
                break;
        case END_OF_SENTENCE:
                os << "\\@.";
                break;
        case LDOTS:
-               os << "\\ldots{}";
+               os << "\\ldots" << termcmd;
                break;
        case MENU_SEPARATOR:
-               os << "\\lyxarrow{}";
+               if (rp.local_font->isRightToLeft())
+                       os << "\\lyxarrow*";
+               else
+                       os << "\\lyxarrow";
+               os << termcmd;
+               break;
+       case SLASH:
+               os << "\\slash" << termcmd;
+               break;
+       case NOBREAKDASH:
+               if (rp.moving_arg)
+                       os << "\\protect";
+               os << "\\nobreakdash-";
+               break;
+       case PHRASE_LYX:
+               if (rp.moving_arg)
+                       os << "\\protect";
+               os << "\\LyX" << termcmd;
+               break;
+       case PHRASE_TEX:
+               if (rp.moving_arg)
+                       os << "\\protect";
+               os << "\\TeX" << termcmd;
+               break;
+       case PHRASE_LATEX2E:
+               if (rp.moving_arg)
+                       os << "\\protect";
+               os << "\\LaTeXe" << termcmd;
+               break;
+       case PHRASE_LATEX:
+               if (rp.moving_arg)
+                       os << "\\protect";
+               os << "\\LaTeX" << termcmd;
                break;
        }
-       return 0;
 }
 
 
-int InsetSpecialChar::plaintext(Buffer const &, odocstream & os,
-                                OutputParams const &) const
+int InsetSpecialChar::plaintext(odocstringstream & os,
+        OutputParams const &, size_t) const
 {
        switch (kind_) {
        case HYPHENATION:
-       case LIGATURE_BREAK:
                return 0;
+       case LIGATURE_BREAK:
+               os.put(0x200c);
+               return 1;
        case END_OF_SENTENCE:
                os << '.';
                return 1;
        case LDOTS:
-               os << "...";
-               return 3;
+               os.put(0x2026);
+               return 1;
        case MENU_SEPARATOR:
                os << "->";
                return 2;
+       case SLASH:
+               os << '/';
+               return 1;
+       case NOBREAKDASH:
+               os.put(0x2011);
+               return 1;
+       case PHRASE_LYX:
+               os << "LyX";
+               return 3;
+       case PHRASE_TEX:
+               os << "TeX";
+               return 3;
+       case PHRASE_LATEX2E:
+               os << "LaTeX2";
+               os.put(0x03b5);
+               return 7;
+       case PHRASE_LATEX:
+               os << "LaTeX";
+               return 5;
        }
        return 0;
 }
 
 
-int InsetSpecialChar::docbook(Buffer const &, odocstream & os,
-                              OutputParams const &) const
+int InsetSpecialChar::docbook(odocstream & os, OutputParams const &) const
 {
        switch (kind_) {
        case HYPHENATION:
@@ -223,46 +468,115 @@ int InsetSpecialChar::docbook(Buffer const &, odocstream & os,
                os << '.';
                break;
        case LDOTS:
-               os << "...";
+               os << "&hellip;";
                break;
        case MENU_SEPARATOR:
                os << "&lyxarrow;";
                break;
+       case SLASH:
+               os << '/';
+               break;
+       case NOBREAKDASH:
+               os << '-';
+               break;
+       case PHRASE_LYX:
+               os << "LyX";
+               break;
+       case PHRASE_TEX:
+               os << "TeX";
+               break;
+       case PHRASE_LATEX2E:
+               os << "LaTeX2";
+               os.put(0x03b5);
+               break;
+       case PHRASE_LATEX:
+               os << "LaTeX";
+               break;
        }
        return 0;
 }
 
 
-int InsetSpecialChar::textString(Buffer const & buf, odocstream & os,
-                      OutputParams const & op) const
+docstring InsetSpecialChar::xhtml(XHTMLStream & xs, OutputParams const &) const
 {
-       return plaintext(buf, os, op);
+       switch (kind_) {
+       case HYPHENATION:
+               break;
+       case LIGATURE_BREAK:
+               xs << XHTMLStream::ESCAPE_NONE << "&#8204;";
+               break;
+       case END_OF_SENTENCE:
+               xs << '.';
+               break;
+       case LDOTS:
+               xs << XHTMLStream::ESCAPE_NONE << "&hellip;";
+               break;
+       case MENU_SEPARATOR:
+               xs << XHTMLStream::ESCAPE_NONE << "&rArr;";
+               break;
+       case SLASH:
+               xs << XHTMLStream::ESCAPE_NONE << "&frasl;";
+               break;
+       case NOBREAKDASH:
+               xs << XHTMLStream::ESCAPE_NONE << "&#8209;";
+               break;
+       case PHRASE_LYX:
+               xs << "LyX";
+               break;
+       case PHRASE_TEX:
+               xs << "TeX";
+               break;
+       case PHRASE_LATEX2E:
+               xs << "LaTeX2" << XHTMLStream::ESCAPE_NONE << "&#x3b5;";
+               break;
+       case PHRASE_LATEX:
+               xs << "LaTeX";
+               break;
+       }
+       return docstring();
 }
 
 
-auto_ptr<InsetBase> InsetSpecialChar::doClone() const
+void InsetSpecialChar::toString(odocstream & os) const
 {
-       return auto_ptr<InsetBase>(new InsetSpecialChar(kind_));
+       switch (kind_) {
+       case LIGATURE_BREAK:
+               // Do not output ZERO WIDTH NON JOINER here
+               // Spell checker would choke on it.
+               return;
+       default:
+               break;
+       }
+       odocstringstream ods;
+       plaintext(ods, OutputParams(0));
+       os << ods.str();
 }
 
 
-void InsetSpecialChar::validate(LaTeXFeatures & features) const
+void InsetSpecialChar::forOutliner(docstring & os, size_t const,
+                                                                  bool const) const
 {
-       if (kind_ == MENU_SEPARATOR) {
-               features.require("lyxarrow");
-       }
+       odocstringstream ods;
+       plaintext(ods, OutputParams(0));
+       os += ods.str();
 }
 
 
-bool InsetSpecialChar::isChar() const
+void InsetSpecialChar::validate(LaTeXFeatures & features) const
 {
-       return true;
+       if (kind_ == MENU_SEPARATOR)
+               features.require("lyxarrow");
+       if (kind_ == NOBREAKDASH)
+               features.require("amsmath");
+       if (kind_ == PHRASE_LYX)
+               features.require("LyX");
 }
 
 
 bool InsetSpecialChar::isLetter() const
 {
-       return kind_ == HYPHENATION || kind_ == LIGATURE_BREAK;
+       return kind_ == HYPHENATION || kind_ == LIGATURE_BREAK
+               || kind_ == NOBREAKDASH;
 }
 
 
@@ -273,7 +587,8 @@ bool InsetSpecialChar::isLineSeparator() const
        // Paragraph::stripLeadingSpaces nukes the characters which
        // have this property. I leave the code here, since it should
        // eventually be made to work. (JMarc 20020327)
-       return kind_ == HYPHENATION || kind_ == MENU_SEPARATOR;
+       return kind_ == HYPHENATION || kind_ == MENU_SEPARATOR
+               || kind_ == SLASH;
 #else
        return false;
 #endif