// IDWriteTextRenderer methods
virtual HRESULT STDMETHODCALLTYPE DrawGlyphRun(
void* clientDrawingContext,
FLOAT baselineOriginX,
FLOAT baselineOriginY,
DWRITE_MEASURING_MODE measuringMode,
DWRITE_GLYPH_RUN const* glyphRun,
DWRITE_GLYPH_RUN_DESCRIPTION const* glyphRunDescription,
IUnknown* clientDrawingEffect) override
{
SkTScopedComPtr<IDWriteFont> font;
HRM(fOuter->fFontCollection->GetFontFromFontFace(glyphRun->fontFace, &font),
"Could not get font from font face.");
// It is possible that the font passed does not actually have the requested character,
// due to no font being found and getting the fallback font.
// Check that the font actually contains the requested character.
BOOL exists;
HRM(font->HasCharacter(fCharacter, &exists), "Could not find character.");
if (exists) {
SkTScopedComPtr<IDWriteFontFamily> fontFamily;
HRM(font->GetFontFamily(&fontFamily), "Could not get family.");
fResolvedTypeface = fOuter->createTypefaceFromDWriteFont(glyphRun->fontFace,
font.get(),
fontFamily.get());
}
return S_OK;
}
