static SkScalar drawCharacter(SkCanvas* canvas, uint32_t character, SkScalar x,
SkScalar y, SkPaint& paint, SkFontMgr* fm,
const char* fontName, const char* bcp47[], int bcp47Count,
const SkFontStyle& fontStyle) {
// find typeface containing the requested character and draw it
SkString ch;
ch.appendUnichar(character);
SkTypeface* typeface = fm->matchFamilyStyleCharacter(fontName, fontStyle,
bcp47, bcp47Count, character);
SkSafeUnref(paint.setTypeface(typeface));
x = drawString(canvas, ch, x, y, paint) + 20;
if (nullptr == typeface) {
return x;
}
// repeat the process, but this time use the family name of the typeface
// from the first pass. This emulates the behavior in Blink where it
// it expects to get the same glyph when following this pattern.
SkString familyName;
typeface->getFamilyName(&familyName);
SkTypeface* typefaceCopy = fm->legacyCreateTypeface(familyName.c_str(), typeface->fontStyle());
SkSafeUnref(paint.setTypeface(typefaceCopy));
return drawString(canvas, ch, x, y, paint) + 20;
}
SkTypeface* SkCreateTypefaceFromCairoFTFontWithFontconfig(cairo_scaled_font_t* scaledFont, FcPattern* pattern)
{
cairo_font_face_t* fontFace = cairo_scaled_font_get_font_face(scaledFont);
SkASSERT(cairo_font_face_status(fontFace) == CAIRO_STATUS_SUCCESS);
SkTypeface* typeface = reinterpret_cast<SkTypeface*>(cairo_font_face_get_user_data(fontFace, &kSkTypefaceKey));
if (typeface) {
typeface->ref();
} else {
CairoLockedFTFace faceLock(scaledFont);
if (FT_Face face = faceLock.getFace()) {
typeface = SkCairoFTTypeface::CreateTypeface(fontFace, face, pattern);
SkTypefaceCache::Add(typeface, typeface->fontStyle());
}
}
return typeface;
}