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"
16 #include "FontLoader.h"
18 #include "GuiFontMetrics.h"
19 #include "qt_helpers.h"
23 #include "support/debug.h"
24 #include "support/filetools.h"
25 #include "support/gettext.h"
26 #include "support/lassert.h"
27 #include "support/lstrings.h"
28 #include "support/Systemcall.h"
29 #include "support/Package.h"
30 #include "support/os.h"
33 #include <QFontDatabase>
36 using namespace lyx::support;
38 QString const math_fonts[] = {"cmex10", "cmmi10", "cmr10", "cmsy10",
39 "dsrom10", "esint10", "eufm10", "msam10", "msbm10", "rsfs10",
40 "stmary10", "wasy10"};
41 int const num_math_fonts = sizeof(math_fonts) / sizeof(*math_fonts);
48 * Matches Fonts against
49 * actual QFont instances, and also caches metrics.
54 GuiFontInfo(FontInfo const & f);
58 /// Metrics on the font
59 GuiFontMetrics metrics;
65 FontFamily lyx_family;
67 #if (QT_VERSION < QT_VERSION_CHECK(5, 0, 0))
72 SymbolFont symbol_fonts[] = {
73 #if (QT_VERSION < QT_VERSION_CHECK(5, 0, 0))
74 { SYMBOL_FAMILY,"symbol", "-*-symbol-*-*-*-*-*-*-*-*-*-*-adobe-fontspecific"},
75 { CMR_FAMILY, "cmr10", "-*-cmr10-medium-*-*-*-*-*-*-*-*-*-*-*" },
76 { CMSY_FAMILY, "cmsy10", "-*-cmsy10-*-*-*-*-*-*-*-*-*-*-*-*" },
77 { CMM_FAMILY, "cmmi10", "-*-cmmi10-medium-*-*-*-*-*-*-*-*-*-*-*" },
78 { CMEX_FAMILY, "cmex10", "-*-cmex10-*-*-*-*-*-*-*-*-*-*-*-*" },
79 { MSA_FAMILY, "msam10", "-*-msam10-*-*-*-*-*-*-*-*-*-*-*-*" },
80 { MSB_FAMILY, "msbm10", "-*-msbm10-*-*-*-*-*-*-*-*-*-*-*-*" },
81 { DS_FAMILY, "dsrom10", "-*-dsrom10-*-*-*-*-*-*-*-*-*-*-*-*" },
82 { EUFRAK_FAMILY,"eufm10", "-*-eufm10-medium-*-*-*-*-*-*-*-*-*-*-*" },
83 { RSFS_FAMILY, "rsfs10", "-*-rsfs10-medium-*-*-*-*-*-*-*-*-*-*-*" },
84 { STMARY_FAMILY,"stmary10","-*-stmary10-medium-*-*-*-*-*-*-*-*-*-*-*" },
85 { WASY_FAMILY, "wasy10", "-*-wasy10-medium-*-*-*-*-*-*-*-*-*-*-*" },
86 { ESINT_FAMILY, "esint10","-*-esint10-medium-*-*-*-*-*-*-*-*-*-*-*" }
88 { SYMBOL_FAMILY,"symbol"},
89 { CMR_FAMILY, "cmr10"},
90 { CMSY_FAMILY, "cmsy10"},
91 { CMM_FAMILY, "cmmi10"},
92 { CMEX_FAMILY, "cmex10"},
93 { MSA_FAMILY, "msam10"},
94 { MSB_FAMILY, "msbm10"},
95 { DS_FAMILY, "dsrom10"},
96 { EUFRAK_FAMILY,"eufm10"},
97 { RSFS_FAMILY, "rsfs10"},
98 { STMARY_FAMILY,"stmary10"},
99 { WASY_FAMILY, "wasy10"},
100 { ESINT_FAMILY, "esint10"}
104 size_t const nr_symbol_fonts = sizeof(symbol_fonts) / sizeof(symbol_fonts[0]);
108 fontinfo_[NUM_FAMILIES][NUM_SERIES][NUM_SHAPE][NUM_SIZE][NUM_STYLE];
111 // returns a reference to the pointer type (GuiFontInfo *) in the
113 GuiFontInfo * & fontinfo_ptr(FontInfo const & f)
115 // The display font and the text font are the same
116 size_t const style = (f.style() == DISPLAY_STYLE) ? TEXT_STYLE : f.style();
117 return fontinfo_[f.family()][f.series()][f.realShape()][f.size()][style];
121 // Get font info (font + metrics) for the given LyX font.
122 // if not cached, create it.
123 GuiFontInfo & fontinfo(FontInfo const & f)
125 bool const fontIsRealized =
126 (f.family() < NUM_FAMILIES) &&
127 (f.series() < NUM_SERIES) &&
128 (f.realShape() < NUM_SHAPE) &&
129 (f.size() < NUM_SIZE);
130 if (!fontIsRealized) {
131 // We can reset the font to something sensible in release mode.
132 LYXERR0("Unrealized font!" << f);
135 f2.realize(sane_font);
136 GuiFontInfo * & fi = fontinfo_ptr(f2);
138 fi = new GuiFontInfo(f2);
141 GuiFontInfo * & fi = fontinfo_ptr(f);
143 fi = new GuiFontInfo(f);
148 #if (QT_VERSION < QT_VERSION_CHECK(5, 0, 0))
149 QString rawName(QString const & family)
151 for (size_t i = 0; i < nr_symbol_fonts; ++i)
152 if (family == symbol_fonts[i].family)
153 return symbol_fonts[i].xlfd;
155 LYXERR(Debug::FONT, "BUG: family not found !");
161 QString symbolFamily(FontFamily family)
163 for (size_t i = 0; i < nr_symbol_fonts; ++i) {
164 if (family == symbol_fonts[i].lyx_family)
165 return symbol_fonts[i].family;
172 bool isSymbolFamily(FontFamily family)
174 return family >= SYMBOL_FAMILY && family <= ESINT_FAMILY;
179 static bool isChosenFont(QFont & font, QString const & family,
180 QString const & style)
182 // QFontInfo won't find a font that has only a few glyphs at unusual
183 // positions, e.g. the original esint10 font.
184 // The workaround is to add dummy glyphs at least at all ASCII
188 LYXERR_NOPOS(Debug::FONT, "got: " << fi.family());
190 if (fi.family().contains(family)
191 #if QT_VERSION >= 0x040800
192 && (style.isEmpty() || fi.styleName().contains(style))
195 LYXERR_NOENDL(Debug::FONT, " got it ");
203 QFont symbolFont(QString const & family, bool * ok)
205 LYXERR_NOENDL(Debug::FONT, "Looking for font family " << family << " ... ");
206 QString upper = family;
207 upper[0] = family[0].toUpper();
210 #if defined Q_WS_X11 || defined(QPA_XCB)
211 // On *nix we have to also specify the foundry to be able to
212 // discriminate our fonts when the texlive fonts are managed by
213 // fontconfig. Unfortunately, doing the same on Windows breaks things.
214 font.setFamily(family + QLatin1String(" [LyEd]"));
216 font.setFamily(family);
218 font.setStyleStrategy(QFont::NoFontMerging);
219 #if QT_VERSION >= 0x040800
220 font.setStyleName("LyX");
222 if (isChosenFont(font, family, "LyX")) {
223 LYXERR_NOPOS(Debug::FONT, "lyx!");
228 LYXERR_NOENDL(Debug::FONT, "Trying normal " << family << " ... ");
229 font.setStyleName(QString());
232 if (isChosenFont(font, family, QString())) {
233 LYXERR_NOPOS(Debug::FONT, "normal!");
238 LYXERR_NOENDL(Debug::FONT, "Trying " << upper << " ... ");
239 font.setFamily(upper);
241 if (isChosenFont(font, upper, QString())) {
242 LYXERR_NOPOS(Debug::FONT, "upper!");
247 #if (QT_VERSION < QT_VERSION_CHECK(5, 0, 0))
248 // A simple setFamily() fails on Qt 2
250 QString const raw = rawName(family);
251 LYXERR_NOENDL(Debug::FONT, "Trying " << raw << " ... ");
252 font.setRawName(raw);
254 if (isChosenFont(font, family, QString())) {
255 LYXERR_NOPOS(Debug::FONT, "raw version!");
261 LYXERR_NOPOS(Debug::FONT, " FAILED :-(");
269 FontLoader::FontLoader()
271 QString const fonts_dir =
272 toqstr(addPath(package().system_support().absFileName(), "fonts"));
274 for (int i = 0 ; i < num_math_fonts; ++i) {
275 QString const font_file = fonts_dir + math_fonts[i] + ".ttf";
276 int fontID = QFontDatabase::addApplicationFont(font_file);
278 LYXERR(Debug::FONT, "Adding font " << font_file
279 << (fontID < 0 ? " FAIL" : " OK"));
282 for (int i1 = 0; i1 < NUM_FAMILIES; ++i1)
283 for (int i2 = 0; i2 < NUM_SERIES; ++i2)
284 for (int i3 = 0; i3 < NUM_SHAPE; ++i3)
285 for (int i4 = 0; i4 < NUM_SIZE; ++i4)
286 for (int i5 = 0; i5 < NUM_STYLE; ++i5)
287 fontinfo_[i1][i2][i3][i4][i5] = 0;
291 void FontLoader::update()
293 for (int i1 = 0; i1 < NUM_FAMILIES; ++i1)
294 for (int i2 = 0; i2 < NUM_SERIES; ++i2)
295 for (int i3 = 0; i3 < NUM_SHAPE; ++i3)
296 for (int i4 = 0; i4 < NUM_SIZE; ++i4)
297 for (int i5 = 0; i5 < NUM_STYLE; ++i5) {
298 delete fontinfo_[i1][i2][i3][i4][i5];
299 fontinfo_[i1][i2][i3][i4][i5] = 0;
304 FontLoader::~FontLoader()
309 /////////////////////////////////////////////////
313 QString makeFontName(QString const & family, QString const & foundry)
315 QString res = family;
316 if (!foundry.isEmpty())
317 res += " [" + foundry + ']';
322 QFont makeQFont(FontInfo const & f)
325 QString const pat = symbolFamily(f.family());
326 if (!pat.isEmpty()) {
328 font = symbolFont(pat, &ok);
330 switch (f.family()) {
332 QString family = makeFontName(toqstr(lyxrc.roman_font_name),
333 toqstr(lyxrc.roman_font_foundry));
334 font.setFamily(family);
336 #if QT_VERSION >= 0x040300 //&& QT_VERSION < 0x040800
337 // Workaround for a Qt bug, see http://www.lyx.org/trac/ticket/3684
338 // and http://bugreports.qt.nokia.com/browse/QTBUG-11145.
339 // FIXME: Check whether this is really fixed in Qt 4.8
340 if (family == "Times" && !font.exactMatch())
341 font.setFamily("Times New Roman");
347 font.setFamily(makeFontName(toqstr(lyxrc.sans_font_name),
348 toqstr(lyxrc.sans_font_foundry)));
350 case TYPEWRITER_FAMILY:
351 font.setFamily(makeFontName(toqstr(lyxrc.typewriter_font_name),
352 toqstr(lyxrc.typewriter_font_foundry)));
359 switch (f.series()) {
361 font.setWeight(QFont::Normal);
364 font.setWeight(QFont::Bold);
370 switch (f.realShape()) {
372 font.setStyle(QFont::StyleItalic);
375 font.setStyle(QFont::StyleOblique);
377 case SMALLCAPS_SHAPE:
378 font.setCapitalization(QFont::SmallCaps);
384 LYXERR(Debug::FONT, "Font '" << f.stateText()
385 << "' matched by\n" << font.family());
387 // Is this an exact match?
388 if (font.exactMatch())
389 LYXERR(Debug::FONT, "This font is an exact match");
391 LYXERR(Debug::FONT, "This font is NOT an exact match");
393 #if (QT_VERSION < QT_VERSION_CHECK(5, 0, 0))
394 LYXERR(Debug::FONT, "XFLD: " << font.rawName());
397 font.setPointSizeF(f.realSize() * lyxrc.currentZoom / 100.0);
399 LYXERR(Debug::FONT, "The font has size: " << font.pointSizeF());
407 GuiFontInfo::GuiFontInfo(FontInfo const & f)
408 : font(makeQFont(f)), metrics(font)
412 bool FontLoader::available(FontInfo const & f)
415 static vector<int> cache_set(NUM_FAMILIES, false);
416 static vector<int> cache(NUM_FAMILIES, false);
418 FontFamily family = f.family();
420 // Apple ships a font name "Symbol", which has more or less the same
421 // glyphs as the original PostScript Symbol font, but it uses a different
422 // encoding (see https://en.wikipedia.org/wiki/Symbol_(typeface)#cite_note-2).
423 // Since we expect the font specific encoding of the original
424 // PostScript Symbol font, we can't use the one provided on OS X.
425 // See also the discussion in bug 7954.
426 if (f.family() == SYMBOL_FAMILY)
429 if (cache_set[family])
430 return cache[family];
431 cache_set[family] = true;
433 QString const pat = symbolFamily(family);
435 // We don't care about non-symbol fonts
439 symbolFont(pat, &ok);
443 cache[family] = true;
448 bool FontLoader::canBeDisplayed(char_type c)
452 // FIXME check whether this is still needed for Qt5
454 #if QT_VERSION < 0x050000 && defined(QT_MAC_USE_COCOA) && (QT_MAC_USE_COCOA > 0)
455 // bug 7954, see also comment in GuiPainter::text()
463 FontMetrics const & FontLoader::metrics(FontInfo const & f)
465 return fontinfo(f).metrics;
469 GuiFontMetrics const & getFontMetrics(FontInfo const & f)
471 return fontinfo(f).metrics;
475 QFont const & getFont(FontInfo const & f)
477 return fontinfo(f).font;
480 } // namespace frontend