explicit SkFontStyleSet_Android(const FontFamily& family,
const SkTypeface_FreeType::Scanner& scanner)
{
const SkString* cannonicalFamilyName = NULL;
if (family.fNames.count() > 0) {
cannonicalFamilyName = &family.fNames[0];
}
// TODO? make this lazy
for (int i = 0; i < family.fFonts.count(); ++i) {
const FontFileInfo& fontFile = family.fFonts[i];
SkString pathName(family.fBasePath);
pathName.append(fontFile.fFileName);
SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(pathName.c_str()));
if (!stream.get()) {
SkDEBUGF(("Requested font file %s does not exist or cannot be opened.\n",
pathName.c_str()));
continue;
}
const int ttcIndex = fontFile.fIndex;
SkString familyName;
SkFontStyle style;
bool isFixedWidth;
if (!scanner.scanFont(stream.get(), ttcIndex, &familyName, &style, &isFixedWidth)) {
SkDEBUGF(("Requested font file %s exists, but is not a valid font.\n",
pathName.c_str()));
continue;
}
int weight = fontFile.fWeight != 0 ? fontFile.fWeight : style.weight();
SkFontStyle::Slant slant = style.slant();
switch (fontFile.fStyle) {
case FontFileInfo::Style::kAuto: slant = style.slant(); break;
case FontFileInfo::Style::kNormal: slant = SkFontStyle::kUpright_Slant; break;
case FontFileInfo::Style::kItalic: slant = SkFontStyle::kItalic_Slant; break;
default: SkASSERT(false); break;
}
style = SkFontStyle(weight, style.width(), slant);
const SkLanguage& lang = family.fLanguage;
uint32_t variant = family.fVariant;
if (kDefault_FontVariant == variant) {
variant = kCompact_FontVariant | kElegant_FontVariant;
}
// The first specified family name overrides the family name found in the font.
// TODO: SkTypeface_AndroidSystem::onCreateFamilyNameIterator should return
// all of the specified family names in addition to the names found in the font.
if (cannonicalFamilyName != NULL) {
familyName = *cannonicalFamilyName;
}
fStyles.push_back().reset(SkNEW_ARGS(SkTypeface_AndroidSystem,
(pathName, ttcIndex,
style, isFixedWidth, familyName,
lang, variant)));
}
}
static int match_score(const SkFontStyle& pattern, const SkFontStyle& candidate) {
int score = 0;
score += SkTAbs((pattern.width() - candidate.width()) * 100);
score += SkTAbs((pattern.slant() == candidate.slant()) ? 0 : 1000);
score += SkTAbs(pattern.weight() - candidate.weight());
return score;
}
sk_sp<SkTypeface> SkTypeface::MakeFromName(const char name[],
SkFontStyle fontStyle) {
if (gCreateTypefaceDelegate) {
sk_sp<SkTypeface> result = (*gCreateTypefaceDelegate)(name, fontStyle);
if (result) {
return result;
}
}
if (nullptr == name && (fontStyle.slant() == SkFontStyle::kItalic_Slant ||
fontStyle.slant() == SkFontStyle::kUpright_Slant) &&
(fontStyle.weight() == SkFontStyle::kBold_Weight ||
fontStyle.weight() == SkFontStyle::kNormal_Weight)) {
return MakeDefault(static_cast<SkTypeface::Style>(
(fontStyle.slant() == SkFontStyle::kItalic_Slant ? SkTypeface::kItalic :
SkTypeface::kNormal) |
(fontStyle.weight() == SkFontStyle::kBold_Weight ? SkTypeface::kBold :
SkTypeface::kNormal)));
}
SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
return sk_sp<SkTypeface>(fm->legacyCreateTypeface(name, fontStyle));
}
explicit DWriteStyle(const SkFontStyle& pattern) {
switch (pattern.slant()) {
case SkFontStyle::kUpright_Slant:
fSlant = DWRITE_FONT_STYLE_NORMAL;
break;
case SkFontStyle::kItalic_Slant:
fSlant = DWRITE_FONT_STYLE_ITALIC;
break;
default:
SkASSERT(false);
}
fWeight = (DWRITE_FONT_WEIGHT)pattern.weight();
fWidth = (DWRITE_FONT_STRETCH)pattern.width();
}
void SkGlyphCache::dump() const {
const SkTypeface* face = fScalerContext->getTypeface();
const SkScalerContextRec& rec = fScalerContext->getRec();
SkMatrix matrix;
rec.getSingleMatrix(&matrix);
matrix.preScale(SkScalarInvert(rec.fTextSize), SkScalarInvert(rec.fTextSize));
SkString name;
face->getFamilyName(&name);
SkString msg;
SkFontStyle style = face->fontStyle();
msg.printf("cache typeface:%x %25s:(%d,%d,%d)\n %s glyphs:%3d",
face->uniqueID(), name.c_str(), style.weight(), style.width(), style.slant(),
rec.dump().c_str(), fGlyphMap.count());
SkDebugf("%s\n", msg.c_str());
}
void onDraw(SkCanvas* canvas) override {
SkScalar y = 20;
SkPaint paint;
paint.setAntiAlias(true);
paint.setLCDRenderText(true);
paint.setSubpixelText(true);
paint.setTextSize(17);
SkFontMgr* fm = fFM;
int count = SkMin32(fm->countFamilies(), MAX_FAMILIES);
for (int i = 0; i < count; ++i) {
SkString familyName;
fm->getFamilyName(i, &familyName);
paint.setTypeface(nullptr);
(void)drawString(canvas, familyName, 20, y, paint);
SkScalar x = 220;
SkAutoTUnref<SkFontStyleSet> set(fm->createStyleSet(i));
for (int j = 0; j < set->count(); ++j) {
SkString sname;
SkFontStyle fs;
set->getStyle(j, &fs, &sname);
sname.appendf(" [%d %d %d]", fs.weight(), fs.width(), fs.slant());
SkSafeUnref(paint.setTypeface(set->createTypeface(j)));
x = drawString(canvas, sname, x, y, paint) + 20;
// check to see that we get different glyphs in japanese and chinese
x = drawCharacter(canvas, 0x5203, x, y, paint, fm, familyName.c_str(), &zh, 1, fs);
x = drawCharacter(canvas, 0x5203, x, y, paint, fm, familyName.c_str(), &ja, 1, fs);
// check that emoji characters are found
x = drawCharacter(canvas, 0x1f601, x, y, paint, fm, familyName.c_str(), nullptr,0, fs);
}
y += 24;
}
}
sk_sp<SkTypeface> create_font(const char* name, SkFontStyle style) {
SkTestFontData* fontData = nullptr;
const SubFont* sub;
if (name) {
for (int index = 0; index < gSubFontsCount; ++index) {
sub = &gSubFonts[index];
if (!strcmp(name, sub->fName) && sub->fStyle == style) {
fontData = &sub->fFont;
break;
}
}
if (!fontData) {
// Once all legacy callers to portable fonts are converted, replace this with
// SK_ABORT();
SkDebugf("missing %s weight %d, width %d, slant %d\n",
name, style.weight(), style.width(), style.slant());
// If we called SkTypeface::CreateFromName() here we'd recurse infinitely,
// so we reimplement its core logic here inline without the recursive aspect.
sk_sp<SkFontMgr> fm(SkFontMgr::RefDefault());
return fm->legacyMakeTypeface(name, style);
}
} else {
sub = &gSubFonts[gDefaultFontIndex];
fontData = &sub->fFont;
}
sk_sp<SkTestFont> font;
{
SkAutoMutexAcquire ac(gTestFontMutex);
if (fontData->fCachedFont) {
font = fontData->fCachedFont;
} else {
font = sk_make_sp<SkTestFont>(*fontData);
fontData->fCachedFont = font;
}
}
return sk_make_sp<SkTestTypeface>(std::move(font), style);
}
