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author | jaepark <jaepark@google.com> | 2016-07-29 19:53:40 -0700 |
---|---|---|
committer | Commit bot <commit-bot@chromium.org> | 2016-07-29 19:53:40 -0700 |
commit | ab47acec5252d4a09da3cbde1a118b5255fe52ae (patch) | |
tree | a138249d262390c0058239552db53c070eca5b4f /core/fpdfdoc/cpvt_generateap.cpp | |
parent | c54bb4340324fab9e860fd625b4b380b6135c385 (diff) | |
download | pdfium-ab47acec5252d4a09da3cbde1a118b5255fe52ae.tar.xz |
Generate default AP stream for highlight annotation.
This patch generates a default AP stream for highlight annotation so that
highlight annotations without AP stream can be displayed.
BUG=62625
Review-Url: https://codereview.chromium.org/2193983002
Diffstat (limited to 'core/fpdfdoc/cpvt_generateap.cpp')
-rw-r--r-- | core/fpdfdoc/cpvt_generateap.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/core/fpdfdoc/cpvt_generateap.cpp b/core/fpdfdoc/cpvt_generateap.cpp index fa69609e0e..56b6612717 100644 --- a/core/fpdfdoc/cpvt_generateap.cpp +++ b/core/fpdfdoc/cpvt_generateap.cpp @@ -493,6 +493,66 @@ bool CPVT_GenerateAP::GenerateTextFieldAP(CPDF_Document* pDoc, return GenerateWidgetAP(pDoc, pAnnotDict, 0); } +bool CPVT_GenerateAP::GenerateHighlightAP(CPDF_Document* pDoc, + CPDF_Dictionary* pAnnotDict) { + // If AP dictionary exists, we use the appearance defined in the + // existing AP dictionary. + if (pAnnotDict->KeyExist("AP")) + return false; + + CFX_ByteTextBuf sAppStream; + sAppStream << "/GS gs "; + + if (pAnnotDict->KeyExist("C")) { + CPDF_Array* pColor = pAnnotDict->GetArrayBy("C"); + CPVT_Color color = CPVT_Color::ParseColor(*pColor); + sAppStream << CPVT_GenerateAP::GenerateColorAP(color, TRUE); + } else { + // Defaults to 0xFFFF00 color for highlight. + sAppStream << "1 1 0 rg \n"; + } + + CFX_FloatRect rect = pAnnotDict->GetRectBy("Rect"); + rect.Normalize(); + + sAppStream << rect.left << " " << rect.top << " m " << rect.right << " " + << rect.top << " l " << rect.right << " " << rect.bottom << " l " + << rect.left << " " << rect.bottom << " l " + << "h f\n"; + + CPDF_Dictionary* pAPDict = new CPDF_Dictionary; + pAnnotDict->SetAt("AP", pAPDict); + + CPDF_Stream* pNormalStream = new CPDF_Stream(nullptr, 0, nullptr); + int32_t objnum = pDoc->AddIndirectObject(pNormalStream); + pAnnotDict->GetDictBy("AP")->SetAtReference("N", pDoc, objnum); + + pNormalStream->SetData(reinterpret_cast<uint8_t*>(sAppStream.GetBuffer()), + sAppStream.GetSize(), FALSE, FALSE); + + CPDF_Dictionary* pStreamDict = pNormalStream->GetDict(); + pStreamDict->SetAtInteger("FormType", 1); + pStreamDict->SetAtString("Subtype", "Form"); + pStreamDict->SetAtMatrix("Matrix", CFX_Matrix()); + pStreamDict->SetAtRect("BBox", rect); + + CPDF_Dictionary* pGSDict = new CPDF_Dictionary; + pGSDict->SetAtString("Type", "ExtGState"); + pGSDict->SetAtNumber("ca", 1); + pGSDict->SetAtNumber("CA", 1); + pGSDict->SetAtBoolean("AIS", false); + pGSDict->SetAtString("BM", "Multiply"); + + CPDF_Dictionary* pExtGStateDict = new CPDF_Dictionary; + pExtGStateDict->SetAt("GS", pGSDict); + + CPDF_Dictionary* pResourceDict = new CPDF_Dictionary; + pResourceDict->SetAt("ExtGState", pExtGStateDict); + + pStreamDict->SetAt("Resources", pResourceDict); + return true; +} + // Static. CFX_ByteString CPVT_GenerateAP::GenerateEditAP( IPVT_FontMap* pFontMap, |