FontPlatformData* FontCache::createFontPlatformData(const FontDescription& fontDescription, const AtomicString& family)
{
char* storage = 0;
const char* name = 0;
if (family.length() == 0) {
static const struct {
FontDescription::GenericFamilyType mType;
const char* mName;
} gNames[] = {
{ FontDescription::SerifFamily, "serif" },
{ FontDescription::SansSerifFamily, "sans-serif" },
{ FontDescription::MonospaceFamily, "monospace" },
{ FontDescription::CursiveFamily, "cursive" },
{ FontDescription::FantasyFamily, "fantasy" }
};
FontDescription::GenericFamilyType type = fontDescription.genericFamily();
for (unsigned i = 0; i < SK_ARRAY_COUNT(gNames); i++)
{
if (type == gNames[i].mType)
{
name = gNames[i].mName;
break;
}
}
// if we fall out of the loop, its ok for name to still be 0
}
else { // convert the name to utf8
storage = AtomicStringToUTF8String(family);
name = storage;
}
int style = SkTypeface::kNormal;
if (fontDescription.weight() >= FontWeightBold)
style |= SkTypeface::kBold;
if (fontDescription.italic())
style |= SkTypeface::kItalic;
SkTypeface* tf = SkTypeface::CreateFromName(name, (SkTypeface::Style)style);
if (!tf)
return 0;
FontPlatformData* result = new FontPlatformData(tf,
name,
fontDescription.computedSize(),
(style & SkTypeface::kBold) && !tf->isBold(),
(style & SkTypeface::kItalic) && !tf->isItalic());
tf->unref();
sk_free(storage);
return result;
}
FontPlatformData* FontCache::createFontPlatformData(const FontDescription& fontDescription, const AtomicString& family)
{
char* storage = 0;
const char* name = 0;
FontPlatformData* result = 0;
if (family.length()) {
storage = AtomicStringToUTF8String(family);
name = storage;
} else
name = getFallbackFontName(fontDescription);
int style = SkTypeface::kNormal;
#ifndef FONT_SOFTWARE_RENDER
if (fontDescription.weight() >= FontWeightBold)
style |= SkTypeface::kBold;
if (fontDescription.italic())
style |= SkTypeface::kItalic;
#endif
// CreateFromName always returns a typeface, falling back to a default font
// if the one requested is not found. Calling Equal() with a null pointer
// serves to compare the returned font against the default, with the caveat
// that the default is always of normal style. If we detect the default, we
// ignore it and allow WebCore to give us the next font on the CSS fallback
// list. The only exception is if the family name is a commonly used generic
// family, as when called by getSimilarFontPlatformData() and
// getLastResortFallbackFont(). In this case, the default font is an
// acceptable result.
SkTypeface* tf = SkTypeface::CreateFromName(name, SkTypeface::kNormal);
if (!SkTypeface::Equal(tf, 0) || isFallbackFamily(family.string())) {
// We had to use normal styling to see if this was a default font. If
// we need bold or italic, replace with the corrected typeface.
if (style != SkTypeface::kNormal) {
tf->unref();
tf = SkTypeface::CreateFromName(name, (SkTypeface::Style)style);
}
result = new FontPlatformData(tf, fontDescription.computedSize(),
(style & SkTypeface::kBold),
(style & SkTypeface::kItalic) && !tf->isItalic(),
fontDescription.orientation(),
fontDescription.textOrientation());
}
tf->unref();
sk_free(storage);
return result;
}
