CPDF_ColorSpace* CPDF_StreamContentParser::FindColorSpace( const CFX_ByteString& name) { if (name == "Pattern") { return CPDF_ColorSpace::GetStockCS(PDFCS_PATTERN); } if (name == "DeviceGray" || name == "DeviceCMYK" || name == "DeviceRGB") { CFX_ByteString defname = "Default"; defname += name.Mid(7); CPDF_Object* pDefObj = FindResourceObj("ColorSpace", defname); if (!pDefObj) { if (name == "DeviceGray") { return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY); } if (name == "DeviceRGB") { return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB); } return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK); } return m_pDocument->LoadColorSpace(pDefObj); } CPDF_Object* pCSObj = FindResourceObj("ColorSpace", name); if (!pCSObj) { m_bResourceMissing = TRUE; return NULL; } return m_pDocument->LoadColorSpace(pCSObj); }
void CPDF_StreamContentParser::Handle_SetExtendGraphState() { CFX_ByteString name = GetString(0); CPDF_Dictionary* pGS = ToDictionary(FindResourceObj("ExtGState", name)); if (!pGS) { m_bResourceMissing = TRUE; return; } m_pCurStates->ProcessExtGS(pGS, this); }
CPDF_Pattern* CPDF_StreamContentParser::FindPattern(const CFX_ByteString& name, FX_BOOL bShading) { CPDF_Object* pPattern = FindResourceObj(bShading ? "Shading" : "Pattern", name); if (!pPattern || (!pPattern->IsDictionary() && !pPattern->IsStream())) { m_bResourceMissing = TRUE; return NULL; } return m_pDocument->LoadPattern(pPattern, bShading, &m_pCurStates->m_ParentMatrix); }
void CPDF_StreamContentParser::Handle_ExecuteXObject() { CFX_ByteString name = GetString(0); if (name == m_LastImageName && m_pLastImage && m_pLastImage->GetStream() && m_pLastImage->GetStream()->GetObjNum()) { AddImage(nullptr, m_pLastImage, FALSE); return; } if (m_Options.m_bTextOnly) { if (!m_pResources) return; CPDF_Dictionary* pList = m_pResources->GetDict("XObject"); if (!pList && m_pPageResources && m_pResources != m_pPageResources) pList = m_pPageResources->GetDict("XObject"); if (!pList) return; CPDF_Reference* pRes = ToReference(pList->GetElement(name)); if (!pRes) return; FX_BOOL bForm; if (m_pDocument->IsFormStream(pRes->GetRefObjNum(), bForm) && !bForm) return; } CPDF_Stream* pXObject = ToStream(FindResourceObj("XObject", name)); if (!pXObject) { m_bResourceMissing = TRUE; return; } CFX_ByteStringC type = pXObject->GetDict() ? pXObject->GetDict()->GetConstString("Subtype") : CFX_ByteStringC(); if (type == "Image") { if (m_Options.m_bTextOnly) { return; } CPDF_ImageObject* pObj = AddImage(pXObject, NULL, FALSE); m_LastImageName = name; m_pLastImage = pObj->m_pImage; if (!m_pObjectList->m_bHasImageMask) m_pObjectList->m_bHasImageMask = m_pLastImage->IsMask(); } else if (type == "Form") { AddForm(pXObject); } else { return; } }
CPDF_Font* CPDF_StreamContentParser::FindFont(const CFX_ByteString& name) { CPDF_Dictionary* pFontDict = ToDictionary(FindResourceObj("Font", name)); if (!pFontDict) { m_bResourceMissing = TRUE; return CPDF_Font::GetStockFont(m_pDocument, "Helvetica"); } CPDF_Font* pFont = m_pDocument->LoadFont(pFontDict); if (pFont && pFont->GetType3Font()) { pFont->GetType3Font()->SetPageResources(m_pResources); pFont->GetType3Font()->CheckType3FontMetrics(); } return pFont; }
void CPDF_StreamContentParser::Handle_BeginMarkedContent_Dictionary() { if (!m_Options.m_bMarkedContent) { return; } CFX_ByteString tag = GetString(1); CPDF_Object* pProperty = GetObject(0); if (!pProperty) { return; } FX_BOOL bDirect = TRUE; if (pProperty->IsName()) { pProperty = FindResourceObj("Properties", pProperty->GetString()); if (!pProperty) return; bDirect = FALSE; } if (CPDF_Dictionary* pDict = pProperty->AsDictionary()) { m_CurContentMark.GetModify()->AddMark(tag, pDict, bDirect); } }
void CPDF_StreamContentParser::EndImageDict() { if (m_StringBuf.GetSize() != m_LastImageDict.GetSize() || FXSYS_memcmp32(m_StringBuf.GetBuffer(), m_LastImageDict.GetBuffer(), m_StringBuf.GetSize())) { m_WordState = 0; StartDict(); InputData(m_StringBuf.GetBuffer(), m_StringBuf.GetSize()); Finish(); m_bSameLastDict = FALSE; if (m_pLastImageDict && m_bReleaseLastDict) { m_pLastImageDict->Release(); m_pLastImageDict = NULL; } if (!m_ObjectSize) { m_InlineImageState = 0; return; } m_pLastImageDict = (CPDF_Dictionary*)m_pObjectStack[--m_ObjectSize]; m_bReleaseLastDict = !m_pObjectState[m_ObjectSize]; m_pObjectState[m_ObjectSize] = FALSE; _PDF_ReplaceAbbr(m_pLastImageDict); m_LastImageDict.TakeOver(m_StringBuf); if (m_pLastImageDict->KeyExist(FX_BSTRC("ColorSpace"))) { CPDF_Object* pCSObj = m_pLastImageDict->GetElementValue(FX_BSTRC("ColorSpace")); if (pCSObj->GetType() == PDFOBJ_NAME) { CFX_ByteString name = pCSObj->GetString(); if (name != FX_BSTRC("DeviceRGB") && name != FX_BSTRC("DeviceGray") && name != FX_BSTRC("DeviceCMYK")) { pCSObj = FindResourceObj(FX_BSTRC("ColorSpace"), name); if (pCSObj) { if (!pCSObj->GetObjNum()) { pCSObj = pCSObj->Clone(); } m_pLastImageDict->SetAt(FX_BSTRC("ColorSpace"), pCSObj, m_pDocument); } } } } } else { m_bSameLastDict = TRUE; } m_ImageSrcBuf.Clear(); if (m_pLastCloneImageDict) { m_pLastCloneImageDict->Release(); } m_pLastCloneImageDict = (CPDF_Dictionary*)m_pLastImageDict->Clone(); if (m_pLastCloneImageDict->KeyExist(FX_BSTRC("Filter"))) { m_WordState = 10; m_InlineImageState = 0; } else { int width = m_pLastCloneImageDict->GetInteger(FX_BSTRC("Width")); int height = m_pLastCloneImageDict->GetInteger(FX_BSTRC("Height")); int OrigSize = 0; CPDF_Object* pCSObj = m_pLastCloneImageDict->GetElementValue(FX_BSTRC("ColorSpace")); if (pCSObj != NULL) { int bpc = m_pLastCloneImageDict->GetInteger(FX_BSTRC("BitsPerComponent")); int nComponents = 1; CPDF_ColorSpace* pCS = m_pDocument->LoadColorSpace(pCSObj); if (pCS == NULL) { nComponents = 3; } else { nComponents = pCS->CountComponents(); m_pDocument->GetPageData()->ReleaseColorSpace(pCSObj); } int pitch = (width * bpc * nComponents + 7) / 8; OrigSize = pitch * height; } else { OrigSize = ((width + 7) / 8) * height; } m_ImageSrcBuf.AppendBlock(NULL, OrigSize); m_WordState = 11; m_InlineImageState = 0; } }
void CPDF_StreamContentParser::Handle_BeginImage() { FX_FILESIZE savePos = m_pSyntax->GetPos(); CPDF_Dictionary* pDict = CPDF_Dictionary::Create(); while (1) { CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement(); if (type == CPDF_StreamParser::Keyword) { CFX_ByteString bsKeyword(m_pSyntax->GetWordBuf(), m_pSyntax->GetWordSize()); if (bsKeyword != FX_BSTRC("ID")) { m_pSyntax->SetPos(savePos); pDict->Release(); return; } } if (type != CPDF_StreamParser::Name) { break; } CFX_ByteString key((const FX_CHAR*)m_pSyntax->GetWordBuf() + 1, m_pSyntax->GetWordSize() - 1); CPDF_Object* pObj = m_pSyntax->ReadNextObject(); if (!key.IsEmpty()) { pDict->SetAt(key, pObj, m_pDocument); } else if (pObj) { pObj->Release(); } } _PDF_ReplaceAbbr(pDict); CPDF_Object* pCSObj = NULL; if (pDict->KeyExist(FX_BSTRC("ColorSpace"))) { pCSObj = pDict->GetElementValue(FX_BSTRC("ColorSpace")); if (pCSObj->GetType() == PDFOBJ_NAME) { CFX_ByteString name = pCSObj->GetString(); if (name != FX_BSTRC("DeviceRGB") && name != FX_BSTRC("DeviceGray") && name != FX_BSTRC("DeviceCMYK")) { pCSObj = FindResourceObj(FX_BSTRC("ColorSpace"), name); if (pCSObj && !pCSObj->GetObjNum()) { pCSObj = pCSObj->Clone(); pDict->SetAt(FX_BSTRC("ColorSpace"), pCSObj, m_pDocument); } } } } CPDF_Stream* pStream = m_pSyntax->ReadInlineStream(m_pDocument, pDict, pCSObj, m_Options.m_bDecodeInlineImage); while (1) { CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement(); if (type == CPDF_StreamParser::EndOfData) { break; } if (type != CPDF_StreamParser::Keyword) { continue; } if (m_pSyntax->GetWordSize() == 2 && m_pSyntax->GetWordBuf()[0] == 'E' && m_pSyntax->GetWordBuf()[1] == 'I') { break; } } if (m_Options.m_bTextOnly) { if (pStream) { pStream->Release(); } else { pDict->Release(); } return; } pDict->SetAtName(FX_BSTRC("Subtype"), FX_BSTRC("Image")); CPDF_ImageObject *pImgObj = AddImage(pStream, NULL, TRUE); if (!pImgObj) { if (pStream) { pStream->Release(); } else { pDict->Release(); } } }