]> git.lyx.org Git - lyx.git/blobdiff - src/frontends/qt2/qfont_loader.C
the convert patch
[lyx.git] / src / frontends / qt2 / qfont_loader.C
index b77e0db1a80201c5be5917e665441f03c8e5822a..8353046132bd32ebebb38a77f4cf85c45f808bd0 100644 (file)
 /**
  * \file qfont_loader.C
- * Copyright 1997 the LyX Team
- * Read the file COPYING
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
  *
  * \author Asger Alstrup
- * \author John Levon <moz@compsoc.man.ac.uk>
+ * \author John Levon
+ *
+ * Full author contact details are available in file CREDITS.
  */
 
 #include <config.h>
 
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
 #include "qfont_loader.h"
-#include "gettext.h"
+#include "qt_helpers.h"
+
 #include "debug.h"
 #include "lyxrc.h"
-#include "BufferView.h"
+
+#include "frontends/lyx_gui.h"
+
+#include "support/convert.h"
+#include "support/filetools.h"
+#include "support/lstrings.h"
+#include "support/systemcall.h"
+
+#include <qfontinfo.h>
+
+#include <boost/tuple/tuple.hpp>
+
+#ifdef Q_WS_X11
+#include <qwidget.h>
+#include <X11/Xlib.h>
+#include <algorithm>
+#endif
+
+using lyx::support::contains;
+using lyx::support::LibFileSearch;
+using lyx::support::OnlyPath;
+using lyx::support::QuoteName;
+using lyx::support::Systemcall;
+
 using std::endl;
+using std::make_pair;
+
+using std::pair;
+using std::vector;
+using std::string;
+
+#ifdef Q_WS_MACX
+#include <ApplicationServices/ApplicationServices.h>
+#endif
+
+
+
+void qfont_loader::addToFontPath()
+{
+#ifdef Q_WS_X11
+       string const dir =  OnlyPath(LibFileSearch("xfonts", "fonts.dir"));
+       if (!dir.empty()) {
+               QWidget w;
+               int n;
+               char ** p = XGetFontPath(w.x11Display(), &n);
+               if (std::find(p, p + n, dir) != p + n)
+                       return;
+               lyxerr[Debug::FONT] << "Adding " << dir
+                                   << " to the font path." << endl;
+               string const command = "xset fp+ " + QuoteName(dir);
+               Systemcall s;
+               if (!s.startscript(Systemcall::Wait, command))
+                       return;
+               lyxerr << "Unable to add " << dir << "to the font path."
+                      << endl;
+       }
+#endif
+}
+
+void qfont_loader::initFontPath()
+{
+#ifdef Q_WS_MACX
+       CFBundleRef  myAppBundle = CFBundleGetMainBundle();
+       CFURLRef  myAppResourcesURL, FontsURL;
+       FSRef  fontDirRef;
+       FSSpec  fontDirSpec;
+       CFStringRef  filePath = CFStringCreateWithBytes(kCFAllocatorDefault,
+                                       (UInt8 *) "Fonts", strlen("Fonts"),
+                                       kCFStringEncodingISOLatin1, false);
+
+       myAppResourcesURL = CFBundleCopyResourcesDirectoryURL(myAppBundle);
+       FontsURL = CFURLCreateCopyAppendingPathComponent(kCFAllocatorDefault,
+                       myAppResourcesURL, filePath, true);
+       if (lyxerr.debugging(Debug::FONT)) {
+               UInt8  buf[255];
+               if (CFURLGetFileSystemRepresentation(FontsURL, true, buf, 255))
+                       lyxerr << "Adding Fonts directory: " << buf << endl;
+       }
+       CFURLGetFSRef (FontsURL, &fontDirRef);
+       OSStatus err = FSGetCatalogInfo (&fontDirRef, kFSCatInfoNone,
+                                        NULL, NULL, &fontDirSpec, NULL);
+       if (err)
+               lyxerr << "FSGetCatalogInfo err = " << err << endl;
+       err = FMActivateFonts (&fontDirSpec, NULL, NULL,
+                              kFMLocalActivationContext);
+       if (err)
+               lyxerr << "FMActivateFonts err = " << err << endl;
+#endif
+}
+
+namespace {
+
+struct symbol_font {
+       LyXFont::FONT_FAMILY lyx_family;
+       string family;
+       string xlfd;
+};
+
+symbol_font symbol_fonts[] = {
+       { LyXFont::SYMBOL_FAMILY,
+               "symbol",
+               "-*-symbol-*-*-*-*-*-*-*-*-*-*-adobe-fontspecific" },
+
+       { LyXFont::CMR_FAMILY,
+               "cmr10",
+               "-*-cmr10-medium-*-*-*-*-*-*-*-*-*-*-*" },
+
+       { LyXFont::CMSY_FAMILY,
+               "cmsy10",
+               "-*-cmsy10-*-*-*-*-*-*-*-*-*-*-*-*" },
+
+       { LyXFont::CMM_FAMILY,
+               "cmmi10",
+               "-*-cmmi10-medium-*-*-*-*-*-*-*-*-*-*-*" },
+
+       { LyXFont::CMEX_FAMILY,
+               "cmex10",
+               "-*-cmex10-*-*-*-*-*-*-*-*-*-*-*-*" },
+
+       { LyXFont::MSA_FAMILY,
+               "msam10",
+               "-*-msam10-*-*-*-*-*-*-*-*-*-*-*-*" },
+
+       { LyXFont::MSB_FAMILY,
+               "msbm10",
+               "-*-msbm10-*-*-*-*-*-*-*-*-*-*-*-*" },
+
+       { LyXFont::EUFRAK_FAMILY,
+               "eufm10",
+               "-*-eufm10-medium-*-*-*-*-*-*-*-*-*-*-*" },
+
+       { LyXFont::WASY_FAMILY,
+               "wasy10",
+               "-*-wasy10-medium-*-*-*-*-*-*-*-*-*-*-*" }
+};
+
+size_t const nr_symbol_fonts = sizeof(symbol_fonts) / sizeof(symbol_font);
+
+
+string getRawName(string const & family)
+{
+       for (size_t i = 0; i < nr_symbol_fonts; ++i) {
+               if (family == symbol_fonts[i].family)
+                       return symbol_fonts[i].xlfd;
+       }
+       lyxerr[Debug::FONT] << "BUG: family not found !" << endl;
+       return string();
+}
+
+
+string const symbolFamily(LyXFont::FONT_FAMILY family)
+{
+       for (size_t i = 0; i < nr_symbol_fonts; ++i) {
+               if (family == symbol_fonts[i].lyx_family)
+                       return symbol_fonts[i].family;
+       }
+       return string();
+}
+
+
+bool isSymbolFamily(LyXFont::FONT_FAMILY family)
+{
+       return family >= LyXFont::SYMBOL_FAMILY &&
+               family <= LyXFont::WASY_FAMILY;
+}
+
+
+bool isChosenFont(QFont & font, string const & family)
+{
+       lyxerr[Debug::FONT] << "raw: " << fromqstr(font.rawName()) << endl;
+
+       QFontInfo fi(font);
+
+       // Note Qt lies about family quite often
+       lyxerr[Debug::FONT] << "alleged fi family: "
+               << fromqstr(fi.family()) << endl;
+
+       // So we check rawName first
+       if (contains(fromqstr(font.rawName()), family)) {
+               lyxerr[Debug::FONT] << " got it ";
+               return true;
+       }
+
+       // Qt 3.2 beta1 returns "xft" for all xft fonts
+       if (font.rawName() == "xft") {
+               if (contains(fromqstr(fi.family()), family)) {
+                       lyxerr[Debug::FONT] << " got it (Xft) ";
+                       return true;
+               }
+       }
+
+       return false;
+}
+
+
+pair<QFont, bool> const getSymbolFont(string const & family)
+{
+       lyxerr[Debug::FONT] << "Looking for font family "
+               << family << " ... ";
+       string upper = family;
+       upper[0] = toupper(family[0]);
+
+       QFont font;
+       font.setFamily(toqstr(family));
+
+       if (isChosenFont(font, family)) {
+               lyxerr[Debug::FONT] << "normal!" << endl;
+               return make_pair<QFont, bool>(font, true);
+       }
+
+       font.setFamily(toqstr(upper));
+
+       if (isChosenFont(font, upper)) {
+               lyxerr[Debug::FONT] << "upper!" << endl;
+               return make_pair<QFont, bool>(font, true);
+       }
+
+       // A simple setFamily() fails on Qt 2
+
+       font.setRawName(toqstr(getRawName(family)));
+
+       if (isChosenFont(font, family)) {
+               lyxerr[Debug::FONT] << "raw version!" << endl;
+               return make_pair<QFont, bool>(font, true);
+       }
+
+       lyxerr[Debug::FONT] << " FAILED :-(" << endl;
+       return make_pair<QFont, bool>(font, false);
+}
+
+} // namespace anon
+
+
 qfont_loader::qfont_loader()
 {
+       for (int i1 = 0; i1 < LyXFont::NUM_FAMILIES; ++i1) {
+               for (int i2 = 0; i2 < 2; ++i2) {
+                       for (int i3 = 0; i3 < 4; ++i3) {
+                               for (int i4 = 0; i4 < 10; ++i4) {
+                                       fontinfo_[i1][i2][i3][i4] = 0;
+                               }
+                       }
+               }
+       }
 }
 
 
@@ -33,78 +270,55 @@ qfont_loader::~qfont_loader()
 
 void qfont_loader::update()
 {
-       int i1,i2,i3,i4;
-
-       // fuck this !
-       for (i1 = 0; i1 < LyXFont::NUM_FAMILIES; ++i1) {
-               for (i2 = 0; i1 < 2; ++i2) {
-                       for (i3 = 0; i1 < 4; ++i3) {
-                               for (i4 = 0; i1 < 10; ++i4) {
-                                       fontinfo_[i1][i2][i3][i4].reset(0);
+       for (int i1 = 0; i1 < LyXFont::NUM_FAMILIES; ++i1) {
+               for (int i2 = 0; i2 < 2; ++i2) {
+                       for (int i3 = 0; i3 < 4; ++i3) {
+                               for (int i4 = 0; i4 < 10; ++i4) {
+                                       delete fontinfo_[i1][i2][i3][i4];
+                                       fontinfo_[i1][i2][i3][i4] = 0;
                                }
                        }
                }
        }
 }
 
+
 QFont const & qfont_loader::get(LyXFont const & f)
 {
-       QFont const & ret(getfontinfo(f)->font);
-       if (lyxerr.debugging(Debug::FONT)) {
-               lyxerr[Debug::FONT] << "Font '" << f.stateText(0)
-                       << "' matched by\n" << ret.rawName().latin1() << endl;
-       }
-       return ret;
+       return getfontinfo(f)->font;
 }
 
+
 qfont_loader::font_info::font_info(LyXFont const & f)
        : metrics(font)
 {
-       switch (f.family()) {
-               case LyXFont::SYMBOL_FAMILY:
-                       font.setRawName("-*-symbol-*-*-*-*-*-*-*-*-*-*-adobe-fontspecific");
-                       break;
-               case LyXFont::CMR_FAMILY:
-                       font.setRawName("-*-cmr10-medium-*-*-*-*-*-*-*-*-*-*-*");
-                       break;
-               case LyXFont::CMSY_FAMILY:
-                       font.setRawName("-*-cmsy10-*-*-*-*-*-*-*-*-*-*-*-*");
-                       break;
-               case LyXFont::CMM_FAMILY:
-                       font.setRawName("-*-cmmi10-medium-*-*-*-*-*-*-*-*-*-*-*");
-                       break;
-               case LyXFont::CMEX_FAMILY:
-                       font.setRawName("-*-cmex10-*-*-*-*-*-*-*-*-*-*-*-*");
-                       break;
-               case LyXFont::MSA_FAMILY:
-                       font.setRawName("-*-msam10-*-*-*-*-*-*-*-*-*-*-*-*");
-                       break;
-               case LyXFont::MSB_FAMILY:
-                       font.setRawName("-*-msbm10-*-*-*-*-*-*-*-*-*-*-*-*");
-                       break;
-               case LyXFont::EUFRAK_FAMILY:
-                       font.setRawName("-*-eufm10-medium-*-*-*-*-*-*-*-*-*-*-*");
-                       break;
+
+       string const pat = symbolFamily(f.family());
+       if (!pat.empty()) {
+               bool tmp;
+               boost::tie(font, tmp) = getSymbolFont(pat);
+       } else {
+               switch (f.family()) {
                case LyXFont::ROMAN_FAMILY:
-                       font.setFamily("times");
+                       font.setFamily(toqstr(makeFontName(lyxrc.roman_font_name,
+                                                   lyxrc.roman_font_foundry)));
                        break;
                case LyXFont::SANS_FAMILY:
-                       font.setFamily("helvetica");
+                       font.setFamily(toqstr(makeFontName(lyxrc.sans_font_name,
+                                                   lyxrc.sans_font_foundry)));
                        break;
                case LyXFont::TYPEWRITER_FAMILY:
-                       font.setFamily("courier");
+                       font.setFamily(toqstr(makeFontName(lyxrc.typewriter_font_name,
+                                                   lyxrc.typewriter_font_foundry)));
+                       break;
+               default:
                        break;
+               }
        }
-       font.setPointSize(int((lyxrc.font_sizes[f.size()] * lyxrc.dpi * 
-               (lyxrc.zoom / 100.0)) / 72.27 + 0.5));
-       // FIXME: lyxrc, check for failure etc.
+
+       font.setPointSizeFloat(convert<double>(lyxrc.font_sizes[f.size()])
+                              * lyxrc.zoom / 100.0);
+
        switch (f.series()) {
                case LyXFont::MEDIUM_SERIES:
                        font.setWeight(QFont::Normal);
@@ -112,38 +326,107 @@ qfont_loader::font_info::font_info(LyXFont const & f)
                case LyXFont::BOLD_SERIES:
                        font.setWeight(QFont::Bold);
                        break;
+               default:
+                       break;
        }
-       switch (f.shape()) {
+
+       switch (f.realShape()) {
                case LyXFont::ITALIC_SHAPE:
                case LyXFont::SLANTED_SHAPE:
                        font.setItalic(true);
                        break;
+               default:
+                       break;
+       }
+
+       if (lyxerr.debugging(Debug::FONT)) {
+               lyxerr[Debug::FONT] << "Font '" << f.stateText(0)
+                       << "' matched by\n" << font.rawName() << endl;
+       }
+
+       lyxerr[Debug::FONT] << "The font has size: "
+                           << font.pointSizeFloat() << endl;
+
+       // Is this an exact match?
+       if (font.exactMatch()) {
+               lyxerr[Debug::FONT] << "This font is an exact match" << endl;
+       } else {
+               lyxerr[Debug::FONT] << "This font is NOT an exact match"
+                                   << endl;
        }
 
+       lyxerr[Debug::FONT] << "XFLD: " << font.rawName() << endl;
+
        metrics = QFontMetrics(font);
 }
 
 
-qfont_loader::font_info const * qfont_loader::getfontinfo(LyXFont const & f)
+qfont_loader::font_info * qfont_loader::getfontinfo(LyXFont const & f)
 {
-       if (!lyxrc.use_gui) {
-               // FIXME
-       }
-
-       font_info * fi = fontinfo_[f.family()][f.series()][f.shape()][f.size()].get();
-       if (fi) {
-               return fi;
-       } else {
-               fi = new font_info(f); 
-               fontinfo_[f.family()][f.series()][f.shape()][f.size()].reset(fi);
+       font_info * fi = fontinfo_[f.family()][f.series()][f.realShape()][f.size()];
+       if (fi)
                return fi;
-       }
+
+       font_info * fi2 = new font_info(f);
+       fontinfo_[f.family()][f.series()][f.realShape()][f.size()] = fi2;
+       return fi2;
 }
 
-bool qfont_loader::available(LyXFont const &)
+
+int qfont_loader::charwidth(LyXFont const & f, Uchar val)
 {
-       // FIXME (see getRawName docs)
-       return true;
+       font_info * fi = getfontinfo(f);
+
+       font_info::WidthCache::const_iterator cit = fi->widthcache.find(val);
+       if (cit != fi->widthcache.end())
+               return cit->second;
+
+       int const w = fi->metrics.width(QChar(val));
+       fi->widthcache[val] = w;
+       return w;
+}
+
+
+bool qfont_loader::available(LyXFont const & f)
+{
+       if (!lyx_gui::use_gui)
+               return false;
+
+       static vector<bool> cache_set(LyXFont::NUM_FAMILIES, false);
+       static vector<bool> cache(LyXFont::NUM_FAMILIES, false);
+
+       LyXFont::FONT_FAMILY family = f.family();
+       if (cache_set[family])
+               return cache[family];
+       cache_set[family] = true;
+
+       string const pat = symbolFamily(family);
+       if (!pat.empty()) {
+               pair<QFont, bool> tmp = getSymbolFont(pat);
+               if (tmp.second) {
+                       cache[family] = true;
+                       return true;
+               }
+
+               // If the font is a tex symbol font and it is not available,
+               // we try to add the xfonts directory to the font path.
+               static bool first_time = true;
+               if (!first_time || family == LyXFont::SYMBOL_FAMILY
+                   || family == LyXFont::WASY_FAMILY)
+                       return false;
+
+               first_time = false;
+               addToFontPath();
+               tmp = getSymbolFont(pat);
+               if (tmp.second) {
+                       cache[family] = true;
+                       return true;
+               }
+               // We don't need to set cache[family] to false, as it
+               //is initialized to false;
+               return false;
+       }
+
+       // We don't care about non-symbol fonts
+       return false;
 }