FontSupport::FontMatch FontSupport::matchFont(const WFont& font) const
{
for (MatchCache::iterator i = cache_.begin(); i != cache_.end(); ++i) {
if (i->font.genericFamily() == font.genericFamily() &&
i->font.specificFamilies() == font.specificFamilies() &&
i->font.weight() == font.weight() &&
i->font.style() == font.style()) {
cache_.splice(cache_.begin(), cache_, i); // implement LRU
return cache_.front().match;
}
}
FontMatch match;
for (unsigned i = 0; i < fontCollections_.size(); ++i) {
FontMatch m = matchFont(font, fontCollections_[i].directory,
fontCollections_[i].recursive);
if (m.quality() > match.quality())
match = m;
}
// implement LRU
cache_.pop_back();
cache_.push_front(Matched());
cache_.front().font = font;
cache_.front().match = match;
return match;
}
QFont transform(const WFont& font)
{
QFont f(QString::fromStdString(font.family()), font.pointSize(), font.weight(), font.italic());
f.setUnderline(font.underline());
f.setStrikeOut(font.strikeOut());
f.setKerning(font.kerning());
return f;
}
void FontSupport::matchFont(const WFont& font,
const std::vector<std::string>& fontNames,
const std::string& path,
FontMatch& match) const
{
if (boost::ends_with(path, ".ttf")
|| boost::ends_with(path, ".ttc")) {
std::string name = Utils::lowerCase(FileUtils::leaf(path));
name = name.substr(0, name.length() - 4);
Utils::replace(name, ' ', std::string());
std::vector<const char*> weightVariants, styleVariants;
if (font.weight() == WFont::Bold) {
weightVariants.push_back("bold");
weightVariants.push_back("bf");
} else {
weightVariants.push_back("");
}
switch (font.style()) {
case WFont::NormalStyle:
styleVariants.push_back("regular");
styleVariants.push_back("");
break;
case WFont::Italic:
styleVariants.push_back("italic");
styleVariants.push_back("oblique");
break;
case WFont::Oblique:
styleVariants.push_back("oblique");
break;
}
for (unsigned i = 0; i < fontNames.size(); ++i) {
double q = 1.0 - 0.1 * i;
if (q <= match.quality())
return;
for (unsigned w = 0; w < weightVariants.size(); ++w)
for (unsigned s = 0; s < styleVariants.size(); ++s) {
std::string fn = fontNames[i] + weightVariants[w] + styleVariants[s];
if (fn == name) {
match = FontMatch(path, q);
return;
}
}
}
}
}