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| author | Dan Sinclair <dsinclair@chromium.org> | 2018-04-03 19:10:51 +0000 |
|---|---|---|
| committer | Chromium commit bot <commit-bot@chromium.org> | 2018-04-03 19:10:51 +0000 |
| commit | 4c22dd5690cdec725389055bb7c07c300a4b6fe4 (patch) | |
| tree | 2b4ead266695d206172fbf11c63274286c496496 /fpdfsdk/formfiller/cba_fontmap.cpp | |
| parent | 232b918d1f0faec230652f4097b834257a7dbb27 (diff) | |
| download | pdfium-4c22dd5690cdec725389055bb7c07c300a4b6fe4.tar.xz | |
Use Optional to determine if appearance stream as fontchromium/3388
This CL changes the CPDF_DefaultAppearance code to remove the HasFont
method and change GetFont to return an Optional. This forces all the
call sites to verify a font was returned correctly and removes the need
for the duplicate appearance stream parsing.
Bug: chromium:827430
Change-Id: If09e0a7d3f7dd63ad77b97a5a388127e4a02da61
Reviewed-on: https://pdfium-review.googlesource.com/29610
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Diffstat (limited to 'fpdfsdk/formfiller/cba_fontmap.cpp')
| -rw-r--r-- | fpdfsdk/formfiller/cba_fontmap.cpp | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/fpdfsdk/formfiller/cba_fontmap.cpp b/fpdfsdk/formfiller/cba_fontmap.cpp index b7e14b4636..0daa0cd5ac 100644 --- a/fpdfsdk/formfiller/cba_fontmap.cpp +++ b/fpdfsdk/formfiller/cba_fontmap.cpp @@ -217,12 +217,14 @@ CPDF_Font* CBA_FontMap::GetAnnotDefaultFont(ByteString* sAlias) { return nullptr; CPDF_DefaultAppearance appearance(sDA); - ASSERT(appearance.HasFont()); - float font_size; - ByteString sDecodedFontName = - PDF_NameDecode(appearance.GetFont(&font_size).AsStringView()); - *sAlias = sDecodedFontName.Right(sDecodedFontName.GetLength() - 1); + Optional<ByteString> font = appearance.GetFont(&font_size); + if (font) { + ByteString sDecodedFontName = PDF_NameDecode(font->AsStringView()); + *sAlias = sDecodedFontName.Right(sDecodedFontName.GetLength() - 1); + } else { + *sAlias = ByteString(); + } CPDF_Dictionary* pFontDict = nullptr; if (CPDF_Dictionary* pAPDict = m_pAnnotDict->GetDictFor("AP")) { |