2 * \file GuiFontLoader.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Asger Alstrup
9 * Full author contact details are available in file CREDITS.
14 #include "GuiFontLoader.h"
15 #include "qt_helpers.h"
20 #include "support/convert.h"
21 #include "support/filetools.h"
22 #include "support/lstrings.h"
23 #include "support/Systemcall.h"
24 #include "support/Package.h"
25 #include "support/os.h"
27 #include <boost/tuple/tuple.hpp>
30 #include <QFontDatabase>
32 using lyx::support::contains;
33 using lyx::support::package;
34 using lyx::support::addPath;
35 using lyx::support::addName;
43 QString const math_fonts[] = {"cmex10", "cmmi10", "cmr10", "cmsy10",
44 "eufm10", "msam10", "msbm10", "wasy10", "esint10"};
45 int const num_math_fonts = sizeof(math_fonts) / sizeof(*math_fonts);
50 extern docstring const stateText(FontInfo const & f);
57 FontFamily lyx_family;
62 SymbolFont symbol_fonts[] = {
65 "-*-symbol-*-*-*-*-*-*-*-*-*-*-adobe-fontspecific" },
69 "-*-cmr10-medium-*-*-*-*-*-*-*-*-*-*-*" },
73 "-*-cmsy10-*-*-*-*-*-*-*-*-*-*-*-*" },
77 "-*-cmmi10-medium-*-*-*-*-*-*-*-*-*-*-*" },
81 "-*-cmex10-*-*-*-*-*-*-*-*-*-*-*-*" },
85 "-*-msam10-*-*-*-*-*-*-*-*-*-*-*-*" },
89 "-*-msbm10-*-*-*-*-*-*-*-*-*-*-*-*" },
93 "-*-eufm10-medium-*-*-*-*-*-*-*-*-*-*-*" },
97 "-*-wasy10-medium-*-*-*-*-*-*-*-*-*-*-*" },
101 "-*-esint10-medium-*-*-*-*-*-*-*-*-*-*-*" }
104 size_t const nr_symbol_fonts = sizeof(symbol_fonts) / sizeof(SymbolFont);
107 QString getRawName(QString const & family)
109 for (size_t i = 0; i < nr_symbol_fonts; ++i)
110 if (family == symbol_fonts[i].family)
111 return symbol_fonts[i].xlfd;
113 LYXERR(Debug::FONT) << "BUG: family not found !" << endl;
118 QString const symbolFamily(FontFamily family)
120 for (size_t i = 0; i < nr_symbol_fonts; ++i) {
121 if (family == symbol_fonts[i].lyx_family)
122 return symbol_fonts[i].family;
128 bool isSymbolFamily(FontFamily family)
130 return family >= SYMBOL_FAMILY &&
131 family <= ESINT_FAMILY;
135 static bool isChosenFont(QFont & font, QString const & family)
137 // QFontInfo won't find a font that has only a few glyphs at unusual
138 // positions, e.g. the original esint10 font.
139 // The workaround is to add dummy glyphs at least at all ASCII
143 LYXERR(Debug::FONT) << "got: " << fromqstr(fi.family()) << endl;
145 if (fi.family().contains(family)) {
146 LYXERR(Debug::FONT) << " got it ";
154 static pair<QFont, bool> const getSymbolFont(QString const & family)
156 LYXERR(Debug::FONT) << "Looking for font family "
157 << fromqstr(family) << " ... ";
158 QString upper = family;
159 upper[0] = family[0].toUpper();
162 font.setKerning(false);
163 font.setFamily(family);
165 if (isChosenFont(font, family)) {
166 LYXERR(Debug::FONT) << "normal!" << endl;
167 return make_pair<QFont, bool>(font, true);
170 LYXERR(Debug::FONT) << "Trying " << fromqstr(upper) << " ... ";
171 font.setFamily(upper);
173 if (isChosenFont(font, upper)) {
174 LYXERR(Debug::FONT) << "upper!" << endl;
175 return make_pair<QFont, bool>(font, true);
178 // A simple setFamily() fails on Qt 2
180 QString const rawName = getRawName(family);
181 LYXERR(Debug::FONT) << "Trying " << fromqstr(rawName) << " ... ";
182 font.setRawName(rawName);
184 if (isChosenFont(font, family)) {
185 LYXERR(Debug::FONT) << "raw version!" << endl;
186 return make_pair<QFont, bool>(font, true);
189 LYXERR(Debug::FONT) << " FAILED :-(" << endl;
190 return make_pair<QFont, bool>(font, false);
196 GuiFontLoader::GuiFontLoader()
198 QString const fonts_dir =
199 toqstr(addPath(package().system_support().absFilename(), "fonts"));
201 for (int i = 0 ; i < num_math_fonts; ++i) {
202 QString const font_file = fonts_dir + '/' + math_fonts[i] + ".ttf";
203 int fontID = QFontDatabase::addApplicationFont(font_file);
205 LYXERR(Debug::FONT) << "Adding font " << fromqstr(font_file)
206 << static_cast<const char *>
207 (fontID < 0 ? " FAIL" : " OK")
211 for (int i1 = 0; i1 < NUM_FAMILIES; ++i1)
212 for (int i2 = 0; i2 < 2; ++i2)
213 for (int i3 = 0; i3 < 4; ++i3)
214 for (int i4 = 0; i4 < 10; ++i4)
215 fontinfo_[i1][i2][i3][i4] = 0;
219 void GuiFontLoader::update()
221 for (int i1 = 0; i1 < NUM_FAMILIES; ++i1) {
222 for (int i2 = 0; i2 < 2; ++i2)
223 for (int i3 = 0; i3 < 4; ++i3)
224 for (int i4 = 0; i4 < 10; ++i4) {
225 delete fontinfo_[i1][i2][i3][i4];
226 fontinfo_[i1][i2][i3][i4] = 0;
232 /////////////////////////////////////////////////
235 static QString makeFontName(QString const & family, QString const & foundry)
237 QString res = family;
238 if (!foundry.isEmpty())
239 res += " [" + foundry + ']';
244 GuiFontInfo::GuiFontInfo(FontInfo const & f)
246 font.setKerning(false);
247 QString const pat = symbolFamily(f.family());
248 if (!pat.isEmpty()) {
250 boost::tie(font, tmp) = getSymbolFont(pat);
252 switch (f.family()) {
254 QString family = makeFontName(toqstr(lyxrc.roman_font_name),
255 toqstr(lyxrc.roman_font_foundry));
256 font.setFamily(family);
258 #if QT_VERSION >= 0x040300
259 // Workaround for a Qt bug, see http://bugzilla.lyx.org/show_bug.cgi?id=3684
260 // It is reported to Trolltech at 02/06/07 against 4.3 final.
261 // FIXME: Add an upper version limit as soon as the bug is fixed in Qt.
262 if (family == "Times" && !font.exactMatch())
263 font.setFamily("Times New Roman");
269 font.setFamily(makeFontName(toqstr(lyxrc.sans_font_name),
270 toqstr(lyxrc.sans_font_foundry)));
272 case TYPEWRITER_FAMILY:
273 font.setFamily(makeFontName(toqstr(lyxrc.typewriter_font_name),
274 toqstr(lyxrc.typewriter_font_foundry)));
281 switch (f.series()) {
283 font.setWeight(QFont::Normal);
286 font.setWeight(QFont::Bold);
292 switch (f.realShape()) {
295 font.setItalic(true);
301 LYXERR(Debug::FONT) << "Font '" << to_utf8(stateText(f))
302 << "' matched by\n" << fromqstr(font.family()) << endl;
304 // Is this an exact match?
305 if (font.exactMatch())
306 LYXERR(Debug::FONT) << "This font is an exact match" << endl;
308 LYXERR(Debug::FONT) << "This font is NOT an exact match"
311 LYXERR(Debug::FONT) << "XFLD: " << fromqstr(font.rawName()) << endl;
313 font.setPointSizeF(convert<double>(lyxrc.font_sizes[f.size()])
314 * lyxrc.zoom / 100.0);
316 LYXERR(Debug::FONT) << "The font has size: "
317 << font.pointSizeF() << endl;
319 if (f.realShape() != SMALLCAPS_SHAPE) {
320 metrics.reset(new GuiFontMetrics(font));
323 // handle small caps ourselves ...
324 FontInfo smallfont = f;
325 smallfont.decSize().decSize().setShape(UP_SHAPE);
327 font2.setKerning(false);
328 font2.setPointSizeF(convert<double>(lyxrc.font_sizes[smallfont.size()])
329 * lyxrc.zoom / 100.0);
331 metrics.reset(new GuiFontMetrics(font, font2));
337 bool GuiFontLoader::available(FontInfo const & f)
339 static vector<int> cache_set(NUM_FAMILIES, false);
340 static vector<int> cache(NUM_FAMILIES, false);
342 FontFamily family = f.family();
343 if (cache_set[family])
344 return cache[family];
345 cache_set[family] = true;
347 QString const pat = symbolFamily(family);
349 // We don't care about non-symbol fonts
352 pair<QFont, bool> tmp = getSymbolFont(pat);
356 cache[family] = true;
360 } // namespace frontend