const SimpleFontData* FontCache::getFontDataForCharacters(const Font& font, const UChar* characters, int length)
{
String family = getFontFamilyForCharacters(characters, length);
if (family.isEmpty())
return 0;
AtomicString atomicFamily(family);
return getCachedFontData(getCachedFontPlatformData(font.fontDescription(), atomicFamily, false));
}
const SimpleFontData* FontCache::getFontDataForCharacters(const Font& font,
const UChar* characters,
int length)
{
icu::Locale locale = icu::Locale::getDefault();
String family = PlatformBridge::getFontFamilyForCharacters(characters, length, locale.getLanguage());
if (family.isEmpty())
return 0;
AtomicString atomicFamily(family);
return getCachedFontData(getCachedFontPlatformData(font.fontDescription(), atomicFamily, DoNotRetain));
}
PassRefPtr<SimpleFontData> FontCache::getFontDataForCharacters(const Font& font, const UChar* characters, int length)
{
icu::Locale locale = icu::Locale::getDefault();
FontCache::SimpleFontFamily family;
FontCache::getFontFamilyForCharacters(characters, length, locale.getLanguage(), font.fontDescription(), &family);
if (family.name.isEmpty())
return 0;
AtomicString atomicFamily(family.name);
// Changes weight and/or italic of given FontDescription depends on
// the result of fontconfig so that keeping the correct font mapping
// of the given characters. See http://crbug.com/32109 for details.
bool shouldSetFakeBold = false;
bool shouldSetFakeItalic = false;
FontDescription description(font.fontDescription());
if (family.isBold && description.weight() < FontWeightBold)
description.setWeight(FontWeightBold);
if (!family.isBold && description.weight() >= FontWeightBold) {
shouldSetFakeBold = true;
description.setWeight(FontWeightNormal);
}
if (family.isItalic && description.italic() == FontItalicOff)
description.setItalic(FontItalicOn);
if (!family.isItalic && description.italic() == FontItalicOn) {
shouldSetFakeItalic = true;
description.setItalic(FontItalicOff);
}
FontPlatformData* substitutePlatformData = getCachedFontPlatformData(description, atomicFamily, DoNotRetain);
if (!substitutePlatformData)
return 0;
FontPlatformData platformData = FontPlatformData(*substitutePlatformData);
platformData.setFakeBold(shouldSetFakeBold);
platformData.setFakeItalic(shouldSetFakeItalic);
return getCachedFontData(&platformData, DoNotRetain);
}