void QFontDatabase::load(const QFontPrivate *d, int script)
{
// sanity checks
if (!qApp)
qWarning("QFontDatabase::load: Must construct QApplication first");
Q_ASSERT(script >= 0 && script < QUnicodeTables::ScriptCount);
// normalize the request to get better caching
QFontDef req = d->request;
if (req.pixelSize <= 0)
req.pixelSize = floor((100.0 * req.pointSize * d->dpi) / 72. + 0.5) / 100;
if (req.pixelSize < 1)
req.pixelSize = 1;
if (req.weight == 0)
req.weight = QFont::Normal;
if (req.stretch == 0)
req.stretch = 100;
QFontCache::Key key(req, d->rawMode ? QUnicodeTables::Common : script, d->screen);
if (!d->engineData)
getEngineData(d, key);
// the cached engineData could have already loaded the engine we want
if (d->engineData->engines[script])
return;
QFontEngine *fe = QFontCache::instance()->findEngine(key);
// set it to the actual pointsize, so QFontInfo will do the right thing
if (req.pointSize < 0)
req.pointSize = req.pixelSize*72./d->dpi;
if (!fe) {
if (qt_enable_test_font && req.family == QLatin1String("__Qt__Box__Engine__")) {
fe = new QTestFontEngine(req.pixelSize);
fe->fontDef = req;
} else {
QMutexLocker locker(fontDatabaseMutex());
if (!privateDb()->count)
initializeDb();
fe = loadWin(d, script, req);
}
if (!fe) {
fe = new QFontEngineBox(req.pixelSize);
fe->fontDef = QFontDef();
}
}
d->engineData->engines[script] = fe;
fe->ref.ref();
QFontCache::instance()->insertEngine(key, fe);
}
void QFontDatabase::load(const QFontPrivate *d, int script)
{
QFontDef req = d->request;
if (req.pixelSize == -1) {
req.pixelSize = floor(((req.pointSize * d->dpi) / 72) * 100 + 0.5) / 100;
req.pixelSize = qRound(req.pixelSize);
}
if (req.pointSize < 0)
req.pointSize = req.pixelSize*72.0/d->dpi;
if (req.weight == 0)
req.weight = QFont::Normal;
if (req.stretch == 0)
req.stretch = 100;
QFontCache::Key key(req, script);
if (!d->engineData)
getEngineData(d, key);
// the cached engineData could have already loaded the engine we want
if (d->engineData->engines[script])
return;
QFontEngine *fe = QFontCache::instance()->findEngine(key);
// list of families to try
QStringList family_list;
if (!req.family.isEmpty()) {
family_list = familyList(req);
// add the default family
QString defaultFamily = QApplication::font().family();
if (! family_list.contains(defaultFamily))
family_list << defaultFamily;
}
// null family means find the first font matching the specified script
family_list << QString();
QStringList::ConstIterator it = family_list.constBegin(), end = family_list.constEnd();
for (; !fe && it != end; ++it) {
req.family = *it;
fe = QFontDatabase::findFont(script, d, req);
if (fe && (fe->type()==QFontEngine::Box) && !req.family.isEmpty())
fe = 0;
}
if (fe->symbol || (d->request.styleStrategy & QFont::NoFontMerging)) {
for (int i = 0; i < QUnicodeTables::ScriptCount; ++i) {
if (!d->engineData->engines[i]) {
d->engineData->engines[i] = fe;
fe->ref.ref();
}
}
} else {
d->engineData->engines[script] = fe;
fe->ref.ref();
}
}
