From 33e9b26ba3c191262d0abb945fda1efb3cdb3051 Mon Sep 17 00:00:00 2001 From: jaepark Date: Tue, 2 Aug 2016 16:22:52 -0700 Subject: Generate default AP stream for underline annotation. This patch generates a default AP stream for underline annotation so that underline annotations without AP stream can be displayed. Also, roll DEPS for testing/corpus to cae29d1 to test underline annotations. BUG=62625 Review-Url: https://codereview.chromium.org/2205543002 --- core/fpdfdoc/cpvt_generateap.cpp | 124 ++++++++++++++++++++++++++++----------- 1 file changed, 89 insertions(+), 35 deletions(-) (limited to 'core/fpdfdoc/cpvt_generateap.cpp') diff --git a/core/fpdfdoc/cpvt_generateap.cpp b/core/fpdfdoc/cpvt_generateap.cpp index aaf4b79858..9bde7e6b85 100644 --- a/core/fpdfdoc/cpvt_generateap.cpp +++ b/core/fpdfdoc/cpvt_generateap.cpp @@ -452,6 +452,65 @@ bool GenerateWidgetAP(CPDF_Document* pDoc, return true; } +CFX_ByteString GetColorStringWithDefault(CPDF_Dictionary* pAnnotDict, + const CPVT_Color& crDefaultColor, + PaintOperation nOperation) { + if (CPDF_Array* pColor = pAnnotDict->GetArrayBy("C")) { + CPVT_Color color = CPVT_Color::ParseColor(*pColor); + return CPVT_GenerateAP::GenerateColorAP(color, nOperation); + } + + return CPVT_GenerateAP::GenerateColorAP(crDefaultColor, nOperation); +} + +CPDF_Dictionary* GenerateExtGStateDict(const CPDF_Dictionary& pAnnotDict, + const CFX_ByteString& sExtGSDictName, + const CFX_ByteString& sBlendMode) { + CPDF_Dictionary* pGSDict = new CPDF_Dictionary; + pGSDict->SetAtString("Type", "ExtGState"); + + FX_FLOAT fOpacity = + pAnnotDict.KeyExist("CA") ? pAnnotDict.GetNumberBy("CA") : 1; + pGSDict->SetAtNumber("CA", fOpacity); + pGSDict->SetAtNumber("ca", fOpacity); + pGSDict->SetAtBoolean("AIS", false); + pGSDict->SetAtString("BM", sBlendMode); + + CPDF_Dictionary* pExtGStateDict = new CPDF_Dictionary; + pExtGStateDict->SetAt(sExtGSDictName, pGSDict); + + return pExtGStateDict; +} + +// Takes ownership of |pExtGStateDict|. +void GenerateAndSetAPDict(CPDF_Document* pDoc, + CPDF_Dictionary* pAnnotDict, + const CFX_ByteTextBuf& sAppStream, + CPDF_Dictionary* pExtGStateDict) { + 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(sAppStream.GetBuffer()), + sAppStream.GetSize(), FALSE, FALSE); + + CPDF_Dictionary* pStreamDict = pNormalStream->GetDict(); + pStreamDict->SetAtInteger("FormType", 1); + pStreamDict->SetAtString("Subtype", "Form"); + pStreamDict->SetAtMatrix("Matrix", CFX_Matrix()); + + CFX_FloatRect rect = pAnnotDict->GetRectBy("Rect"); + pStreamDict->SetAtRect("BBox", rect); + + CPDF_Dictionary* pResourceDict = new CPDF_Dictionary; + pResourceDict->SetAt("ExtGState", pExtGStateDict); + + pStreamDict->SetAt("Resources", pResourceDict); +} + } // namespace bool FPDF_GenerateAP(CPDF_Document* pDoc, CPDF_Dictionary* pAnnotDict) { @@ -510,16 +569,11 @@ bool CPVT_GenerateAP::GenerateHighlightAP(CPDF_Document* pDoc, return false; CFX_ByteTextBuf sAppStream; - sAppStream << "/GS gs "; + CFX_ByteString sExtGSDictName = "GS"; + sAppStream << "/" << sExtGSDictName << " gs "; - if (pAnnotDict->KeyExist("C")) { - CPDF_Array* pColor = pAnnotDict->GetArrayBy("C"); - CPVT_Color color = CPVT_Color::ParseColor(*pColor); - sAppStream << CPVT_GenerateAP::GenerateColorAP(color, PaintOperation::FILL); - } else { - // Defaults to 0xFFFF00 color for highlight. - sAppStream << "1 1 0 rg \n"; - } + sAppStream << GetColorStringWithDefault( + pAnnotDict, CPVT_Color(CPVT_Color::kRGB, 1, 1, 0), PaintOperation::FILL); CFX_FloatRect rect = pAnnotDict->GetRectBy("Rect"); rect.Normalize(); @@ -529,39 +583,39 @@ bool CPVT_GenerateAP::GenerateHighlightAP(CPDF_Document* pDoc, << rect.left << " " << rect.bottom << " l " << "h f\n"; - CPDF_Dictionary* pAPDict = new CPDF_Dictionary; - pAnnotDict->SetAt("AP", pAPDict); + CPDF_Dictionary* pExtGStateDict = + GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Multiply"); + GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pExtGStateDict); - 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(sAppStream.GetBuffer()), - sAppStream.GetSize(), FALSE, FALSE); + return true; +} - CPDF_Dictionary* pStreamDict = pNormalStream->GetDict(); - pStreamDict->SetAtInteger("FormType", 1); - pStreamDict->SetAtString("Subtype", "Form"); - pStreamDict->SetAtMatrix("Matrix", CFX_Matrix()); - pStreamDict->SetAtRect("BBox", rect); +bool CPVT_GenerateAP::GenerateUnderlineAP(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; - CPDF_Dictionary* pGSDict = new CPDF_Dictionary; - pGSDict->SetAtString("Type", "ExtGState"); + CFX_ByteTextBuf sAppStream; + CFX_ByteString sExtGSDictName = "GS"; + sAppStream << "/" << sExtGSDictName << " gs "; - FX_FLOAT fOpacity = - pAnnotDict->KeyExist("CA") ? pAnnotDict->GetNumberBy("CA") : 1; - pGSDict->SetAtNumber("ca", fOpacity); - pGSDict->SetAtNumber("CA", fOpacity); - pGSDict->SetAtBoolean("AIS", false); - pGSDict->SetAtString("BM", "Multiply"); + sAppStream << GetColorStringWithDefault(pAnnotDict, + CPVT_Color(CPVT_Color::kRGB, 0, 0, 0), + PaintOperation::STROKE); - CPDF_Dictionary* pExtGStateDict = new CPDF_Dictionary; - pExtGStateDict->SetAt("GS", pGSDict); + CFX_FloatRect rect = pAnnotDict->GetRectBy("Rect"); + rect.Normalize(); - CPDF_Dictionary* pResourceDict = new CPDF_Dictionary; - pResourceDict->SetAt("ExtGState", pExtGStateDict); + FX_FLOAT fLineWidth = 1.0; + sAppStream << fLineWidth << " w " << rect.left << " " + << rect.bottom + fLineWidth << " m " << rect.right << " " + << rect.bottom + fLineWidth << " l S\n"; - pStreamDict->SetAt("Resources", pResourceDict); + CPDF_Dictionary* pExtGStateDict = + GenerateExtGStateDict(*pAnnotDict, sExtGSDictName, "Normal"); + GenerateAndSetAPDict(pDoc, pAnnotDict, sAppStream, pExtGStateDict); return true; } -- cgit v1.2.3