static QFontEngine *loadWin(const QFontPrivate *d, int script, const QFontDef &req)
{
// list of families to try
QStringList family_list = familyList(req);
const char *stylehint = styleHint(d->request);
if (stylehint)
family_list << QLatin1String(stylehint);
// append the default fallback font for the specified script
// family_list << ... ; ###########
// add the default family
QString defaultFamily = QApplication::font().family();
if (! family_list.contains(defaultFamily))
family_list << defaultFamily;
// add QFont::defaultFamily() to the list, for compatibility with
// previous versions
family_list << QApplication::font().defaultFamily();
// null family means find the first font matching the specified script
family_list << QString();
QtFontDesc desc;
QFontEngine *fe = 0;
QList<int> blacklistedFamilies;
while (!fe) {
for (int i = 0; i < family_list.size(); ++i) {
QString family, foundry;
parseFontName(family_list.at(i), foundry, family);
FM_DEBUG("loadWin: >>>>>>>>>>>>>>trying to match '%s'", family.toLatin1().data());
QT_PREPEND_NAMESPACE(match)(script, req, family, foundry, -1, &desc, blacklistedFamilies);
if (desc.family)
break;
}
if (!desc.family)
break;
fe = loadEngine(script, req, d->hdc, d->dpi, d->rawMode, &desc, family_list);
if (!fe)
blacklistedFamilies.append(desc.familyIndex);
}
return fe;
}
/*!
\internal
*/
QFontEngine *
QFontDatabase::findFont(int script, const QFontPrivate *fp,
const QFontDef &request)
{
QMutexLocker locker(fontDatabaseMutex());
const int force_encoding_id = -1;
if (!privateDb()->count)
initializeDb();
QFontEngine *engine;
QFontCache::Key key(request, script);
engine = QFontCache::instance()->findEngine(key);
if (engine) {
qDebug() << "Cache hit level 1";
return engine;
}
QString family_name, foundry_name;
parseFontName(request.family, foundry_name, family_name);
if (qt_enable_test_font && request.family == QLatin1String("__Qt__Box__Engine__")) {
engine =new QTestFontEngine(request.pixelSize);
engine->fontDef = request;
}
QtFontDesc desc;
match(script, request, family_name, foundry_name, force_encoding_id, &desc);
if (desc.family != 0 && desc.foundry != 0 && desc.style != 0) {
engine = loadEngine(script, request, desc.family, desc.foundry, desc.style, desc.size);
} else {
FM_DEBUG(" NO MATCH FOUND\n");
}
if (engine) {
initFontDef(desc, request, &engine->fontDef);
if (fp) {
QFontDef def = request;
if (def.family.isEmpty()) {
def.family = fp->request.family;
def.family = def.family.left(def.family.indexOf(QLatin1Char(',')));
}
}
}
if (!engine) {
if (!request.family.isEmpty()) {
QStringList fallbacks = fallbackFamilies(request.family,QFont::Style(request.style),QFont::StyleHint(request.styleHint),QUnicodeTables::Script(script));
for (int i = 0; i < fallbacks.size(); i++) {
QFontDef def = request;
def.family = fallbacks.at(i);
QFontCache::Key key(def,script);
engine = QFontCache::instance()->findEngine(key);
if (!engine) {
QtFontDesc desc;
match(script, def, def.family, QLatin1String(""), 0, &desc);
if (desc.family == 0 && desc.foundry == 0 && desc.style == 0) {
continue;
}
engine = loadEngine(script, def, desc.family, desc.foundry, desc.style, desc.size);
if (engine) {
initFontDef(desc, def, &engine->fontDef);
break;
}
}
}
}
if (!engine)
engine = new QFontEngineBox(request.pixelSize);
FM_DEBUG("returning box engine");
}
if (fp && fp->dpi > 0) {
engine->fontDef.pointSize = qreal(double((engine->fontDef.pixelSize * 72) / fp->dpi));
} else {
engine->fontDef.pointSize = request.pointSize;
}
return engine;
}
