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https://git.lyx.org/repos/lyx.git
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7990a764dc
bug is fixed in Qt an upper version bound should be added. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18647 a592a061-630c-0410-9148-cb99ea01b6c8
333 lines
7.3 KiB
C++
333 lines
7.3 KiB
C++
/**
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* \file GuiFontLoader.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Asger Alstrup
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* \author John Levon
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "GuiFontLoader.h"
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#include "qt_helpers.h"
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#include "debug.h"
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#include "LyXRC.h"
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#include "support/convert.h"
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#include "support/filetools.h"
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#include "support/lstrings.h"
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#include "support/Systemcall.h"
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#include <qfontinfo.h>
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#include <boost/tuple/tuple.hpp>
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#ifdef Q_WS_X11
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#include <qwidget.h>
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//#include <X11/Xlib.h>
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#include <algorithm>
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#endif
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using lyx::support::contains;
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using std::endl;
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using std::make_pair;
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using std::pair;
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using std::vector;
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using std::string;
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namespace lyx {
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namespace frontend {
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namespace {
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struct symbol_font {
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Font::FONT_FAMILY lyx_family;
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string family;
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string xlfd;
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};
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symbol_font symbol_fonts[] = {
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{ Font::SYMBOL_FAMILY,
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"symbol",
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"-*-symbol-*-*-*-*-*-*-*-*-*-*-adobe-fontspecific" },
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{ Font::CMR_FAMILY,
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"cmr10",
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"-*-cmr10-medium-*-*-*-*-*-*-*-*-*-*-*" },
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{ Font::CMSY_FAMILY,
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"cmsy10",
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"-*-cmsy10-*-*-*-*-*-*-*-*-*-*-*-*" },
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{ Font::CMM_FAMILY,
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"cmmi10",
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"-*-cmmi10-medium-*-*-*-*-*-*-*-*-*-*-*" },
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{ Font::CMEX_FAMILY,
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"cmex10",
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"-*-cmex10-*-*-*-*-*-*-*-*-*-*-*-*" },
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{ Font::MSA_FAMILY,
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"msam10",
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"-*-msam10-*-*-*-*-*-*-*-*-*-*-*-*" },
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{ Font::MSB_FAMILY,
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"msbm10",
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"-*-msbm10-*-*-*-*-*-*-*-*-*-*-*-*" },
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{ Font::EUFRAK_FAMILY,
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"eufm10",
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"-*-eufm10-medium-*-*-*-*-*-*-*-*-*-*-*" },
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{ Font::WASY_FAMILY,
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"wasy10",
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"-*-wasy10-medium-*-*-*-*-*-*-*-*-*-*-*" },
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{ Font::ESINT_FAMILY,
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"esint10",
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"-*-esint10-medium-*-*-*-*-*-*-*-*-*-*-*" }
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};
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size_t const nr_symbol_fonts = sizeof(symbol_fonts) / sizeof(symbol_font);
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string getRawName(string const & family)
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{
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for (size_t i = 0; i < nr_symbol_fonts; ++i)
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if (family == symbol_fonts[i].family)
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return symbol_fonts[i].xlfd;
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LYXERR(Debug::FONT) << "BUG: family not found !" << endl;
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return string();
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}
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string const symbolFamily(Font::FONT_FAMILY family)
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{
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for (size_t i = 0; i < nr_symbol_fonts; ++i) {
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if (family == symbol_fonts[i].lyx_family)
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return symbol_fonts[i].family;
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}
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return string();
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}
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bool isSymbolFamily(Font::FONT_FAMILY family)
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{
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return family >= Font::SYMBOL_FAMILY &&
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family <= Font::ESINT_FAMILY;
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}
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bool isChosenFont(QFont & font, string const & family)
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{
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// QFontInfo won't find a font that has only a few glyphs at unusual
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// positions, e.g. the original esint10 font.
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// The workaround is to add dummy glyphs at least at all ASCII
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// positions.
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QFontInfo fi(font);
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LYXERR(Debug::FONT) << "got: " << fromqstr(fi.family()) << endl;
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if (contains(fromqstr(fi.family()), family)) {
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LYXERR(Debug::FONT) << " got it ";
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return true;
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}
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return false;
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}
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pair<QFont, bool> const getSymbolFont(string const & family)
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{
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LYXERR(Debug::FONT) << "Looking for font family "
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<< family << " ... ";
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string upper = family;
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upper[0] = toupper(family[0]);
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QFont font;
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font.setKerning(false);
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font.setFamily(toqstr(family));
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if (isChosenFont(font, family)) {
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LYXERR(Debug::FONT) << "normal!" << endl;
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return make_pair<QFont, bool>(font, true);
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}
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LYXERR(Debug::FONT) << "Trying " << upper << " ... ";
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font.setFamily(toqstr(upper));
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if (isChosenFont(font, upper)) {
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LYXERR(Debug::FONT) << "upper!" << endl;
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return make_pair<QFont, bool>(font, true);
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}
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// A simple setFamily() fails on Qt 2
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string const rawName = getRawName(family);
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LYXERR(Debug::FONT) << "Trying " << rawName << " ... ";
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font.setRawName(toqstr(rawName));
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if (isChosenFont(font, family)) {
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LYXERR(Debug::FONT) << "raw version!" << endl;
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return make_pair<QFont, bool>(font, true);
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}
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LYXERR(Debug::FONT) << " FAILED :-(" << endl;
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return make_pair<QFont, bool>(font, false);
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}
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} // namespace anon
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GuiFontLoader::GuiFontLoader()
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{
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for (int i1 = 0; i1 < Font::NUM_FAMILIES; ++i1)
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for (int i2 = 0; i2 < 2; ++i2)
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for (int i3 = 0; i3 < 4; ++i3)
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for (int i4 = 0; i4 < 10; ++i4)
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fontinfo_[i1][i2][i3][i4] = 0;
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}
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void GuiFontLoader::update()
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{
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for (int i1 = 0; i1 < Font::NUM_FAMILIES; ++i1)
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for (int i2 = 0; i2 < 2; ++i2)
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for (int i3 = 0; i3 < 4; ++i3)
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for (int i4 = 0; i4 < 10; ++i4) {
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delete fontinfo_[i1][i2][i3][i4];
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fontinfo_[i1][i2][i3][i4] = 0;
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}
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}
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/////////////////////////////////////////////////
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QLFontInfo::QLFontInfo(Font const & f)
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{
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font.setKerning(false);
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string const pat = symbolFamily(f.family());
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if (!pat.empty()) {
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bool tmp;
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boost::tie(font, tmp) = getSymbolFont(pat);
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} else {
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switch (f.family()) {
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case Font::ROMAN_FAMILY: {
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QString family = toqstr(makeFontName(lyxrc.roman_font_name,
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lyxrc.roman_font_foundry));
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font.setFamily(family);
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#ifdef Q_WS_MACX
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#if QT_VERSION >= 0x040300
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// Workaround for a Qt bug, see http://bugzilla.lyx.org/show_bug.cgi?id=3684
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// It is reported to Trolltech at 02/06/07 against 4.3 final.
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// FIXME: Add an upper version limit as soon as the bug is fixed in Qt.
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if (family == "Times" && !font.exactMatch())
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font.setFamily(QString::fromLatin1("Times New Roman"));
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#endif
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#endif
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break;
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}
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case Font::SANS_FAMILY:
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font.setFamily(toqstr(makeFontName(lyxrc.sans_font_name,
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lyxrc.sans_font_foundry)));
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break;
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case Font::TYPEWRITER_FAMILY:
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font.setFamily(toqstr(makeFontName(lyxrc.typewriter_font_name,
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lyxrc.typewriter_font_foundry)));
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break;
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default:
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break;
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}
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}
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switch (f.series()) {
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case Font::MEDIUM_SERIES:
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font.setWeight(QFont::Normal);
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break;
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case Font::BOLD_SERIES:
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font.setWeight(QFont::Bold);
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break;
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default:
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break;
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}
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switch (f.realShape()) {
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case Font::ITALIC_SHAPE:
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case Font::SLANTED_SHAPE:
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font.setItalic(true);
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break;
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default:
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break;
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}
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LYXERR(Debug::FONT) << "Font '" << to_utf8(f.stateText(0))
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<< "' matched by\n" << fromqstr(font.family()) << endl;
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// Is this an exact match?
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if (font.exactMatch())
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LYXERR(Debug::FONT) << "This font is an exact match" << endl;
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else
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LYXERR(Debug::FONT) << "This font is NOT an exact match"
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<< endl;
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LYXERR(Debug::FONT) << "XFLD: " << fromqstr(font.rawName()) << endl;
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font.setPointSizeF(convert<double>(lyxrc.font_sizes[f.size()])
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* lyxrc.zoom / 100.0);
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LYXERR(Debug::FONT) << "The font has size: "
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<< font.pointSizeF() << endl;
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if (f.realShape() != Font::SMALLCAPS_SHAPE) {
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metrics.reset(new GuiFontMetrics(font));
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}
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else {
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// handle small caps ourselves ...
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Font smallfont = f;
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smallfont.decSize().decSize().setShape(Font::UP_SHAPE);
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QFont font2(font);
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font2.setKerning(false);
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font2.setPointSizeF(convert<double>(lyxrc.font_sizes[smallfont.size()])
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* lyxrc.zoom / 100.0);
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metrics.reset(new GuiFontMetrics(font, font2));
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}
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}
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bool GuiFontLoader::available(Font const & f)
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{
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static vector<int> cache_set(Font::NUM_FAMILIES, false);
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static vector<int> cache(Font::NUM_FAMILIES, false);
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Font::FONT_FAMILY family = f.family();
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if (cache_set[family])
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return cache[family];
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cache_set[family] = true;
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string const pat = symbolFamily(family);
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if (pat.empty())
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// We don't care about non-symbol fonts
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return false;
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pair<QFont, bool> tmp = getSymbolFont(pat);
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if (!tmp.second)
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return false;
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cache[family] = true;
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return true;
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}
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} // namespace frontend
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} // namespace lyx
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