void CPDF_RenderStatus::ProcessClipPath(CPDF_ClipPath ClipPath, const CFX_Matrix* pObj2Device) { if (!ClipPath) { if (m_LastClipPath) { m_pDevice->RestoreState(true); m_LastClipPath.SetNull(); } return; } if (m_LastClipPath == ClipPath) return; m_LastClipPath = ClipPath; m_pDevice->RestoreState(true); int nClipPath = ClipPath.GetPathCount(); for (int i = 0; i < nClipPath; ++i) { const CFX_PathData* pPathData = ClipPath.GetPath(i).GetObject(); if (!pPathData) continue; if (pPathData->GetPointCount() == 0) { CFX_PathData EmptyPath; EmptyPath.AppendRect(-1, -1, 0, 0); int fill_mode = FXFILL_WINDING; m_pDevice->SetClip_PathFill(&EmptyPath, nullptr, fill_mode); } else { int ClipType = ClipPath.GetClipType(i); m_pDevice->SetClip_PathFill(pPathData, pObj2Device, ClipType); } } int textcount = ClipPath.GetTextCount(); if (textcount == 0) return; if (m_pDevice->GetDeviceClass() == FXDC_DISPLAY && !(m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_SOFT_CLIP)) { return; } std::unique_ptr<CFX_PathData> pTextClippingPath; for (int i = 0; i < textcount; ++i) { CPDF_TextObject* pText = ClipPath.GetText(i); if (pText) { if (!pTextClippingPath) pTextClippingPath.reset(new CFX_PathData); ProcessText(pText, pObj2Device, pTextClippingPath.get()); continue; } if (!pTextClippingPath) continue; int fill_mode = FXFILL_WINDING; if (m_Options.m_Flags & RENDER_NOTEXTSMOOTH) fill_mode |= FXFILL_NOPATHSMOOTH; m_pDevice->SetClip_PathFill(pTextClippingPath.get(), nullptr, fill_mode); pTextClippingPath.reset(); } }
FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertClipPath(FPDF_PAGE page, FPDF_CLIPPATH clipPath) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); if (!pPage) return; CPDF_Dictionary* pPageDict = pPage->GetDict(); CPDF_Object* pContentObj = GetPageContent(pPageDict); if (!pContentObj) return; std::ostringstream strClip; CPDF_ClipPath* pClipPath = CPDFClipPathFromFPDFClipPath(clipPath); for (size_t i = 0; i < pClipPath->GetPathCount(); ++i) { CPDF_Path path = pClipPath->GetPath(i); if (path.GetPoints().empty()) { // Empty clipping (totally clipped out) strClip << "0 0 m W n "; } else { OutputPath(strClip, path); if (pClipPath->GetClipType(i) == FXFILL_WINDING) strClip << "W n\n"; else strClip << "W* n\n"; } } CPDF_Document* pDoc = pPage->GetDocument(); if (!pDoc) return; CPDF_Stream* pStream = pDoc->NewIndirect<CPDF_Stream>(nullptr, 0, pDoc->New<CPDF_Dictionary>()); pStream->SetDataFromStringstream(&strClip); if (CPDF_Array* pArray = ToArray(pContentObj)) { pArray->InsertAt(0, pStream->MakeReference(pDoc)); } else if (pContentObj->IsStream() && !pContentObj->IsInline()) { CPDF_Array* pContentArray = pDoc->NewIndirect<CPDF_Array>(); pContentArray->Add(pStream->MakeReference(pDoc)); pContentArray->Add(pContentObj->MakeReference(pDoc)); pPageDict->SetFor(pdfium::page_object::kContents, pContentArray->MakeReference(pDoc)); } }
DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page, FPDF_CLIPPATH clipPath) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); if (!pPage) return; CPDF_Dictionary* pPageDic = pPage->m_pFormDict; CPDF_Object* pContentObj = pPageDic ? pPageDic->GetElement("Contents") : nullptr; if (!pContentObj) pContentObj = pPageDic ? pPageDic->GetArrayBy("Contents") : nullptr; if (!pContentObj) return; CFX_ByteTextBuf strClip; CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath; FX_DWORD i; for (i = 0; i < pClipPath->GetPathCount(); i++) { CPDF_Path path = pClipPath->GetPath(i); int iClipType = pClipPath->GetClipType(i); if (path.GetPointCount() == 0) { // Empty clipping (totally clipped out) strClip << "0 0 m W n "; } else { OutputPath(strClip, path); if (iClipType == FXFILL_WINDING) strClip << "W n\n"; else strClip << "W* n\n"; } } CPDF_Dictionary* pDic = new CPDF_Dictionary; CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic); pStream->SetData(strClip.GetBuffer(), strClip.GetSize(), FALSE, FALSE); CPDF_Document* pDoc = pPage->m_pDocument; if (!pDoc) return; pDoc->AddIndirectObject(pStream); CPDF_Array* pContentArray = nullptr; if (CPDF_Array* pArray = ToArray(pContentObj)) { pContentArray = pArray; CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum()); pContentArray->InsertAt(0, pRef); } else if (CPDF_Reference* pReference = ToReference(pContentObj)) { CPDF_Object* pDirectObj = pReference->GetDirect(); if (pDirectObj) { if (CPDF_Array* pArray = pDirectObj->AsArray()) { pContentArray = pArray; CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum()); pContentArray->InsertAt(0, pRef); } else if (pDirectObj->IsStream()) { pContentArray = new CPDF_Array(); pContentArray->AddReference(pDoc, pStream->GetObjNum()); pContentArray->AddReference(pDoc, pDirectObj->GetObjNum()); pPageDic->SetAtReference("Contents", pDoc, pDoc->AddIndirectObject(pContentArray)); } } } }
DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,FPDF_CLIPPATH clipPath) { if(!page) return; CPDF_Page* pPage = (CPDF_Page*)page; CPDF_Dictionary* pPageDic = pPage->m_pFormDict; CPDF_Object* pContentObj = pPageDic->GetElement("Contents"); if(!pContentObj) pContentObj = pPageDic->GetArray("Contents"); if(!pContentObj) return; CFX_ByteTextBuf strClip; CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath; FX_DWORD i; for (i = 0; i < pClipPath->GetPathCount(); i ++) { CPDF_Path path = pClipPath->GetPath(i); int iClipType = pClipPath->GetClipType(i); if (path.GetPointCount() == 0) { // Empty clipping (totally clipped out) strClip << "0 0 m W n "; } else { OutputPath(strClip, path); if (iClipType == FXFILL_WINDING) strClip << "W n\n"; else strClip << "W* n\n"; } } CPDF_Dictionary* pDic = FX_NEW CPDF_Dictionary; CPDF_Stream* pStream = FX_NEW CPDF_Stream(NULL,0, pDic); pStream->SetData(strClip.GetBuffer(), strClip.GetSize(), FALSE, FALSE); CPDF_Document* pDoc = pPage->m_pDocument; if(!pDoc) return; pDoc->AddIndirectObject(pStream); CPDF_Array* pContentArray = NULL; if (pContentObj && pContentObj->GetType() == PDFOBJ_ARRAY) { pContentArray = (CPDF_Array*)pContentObj; CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum()); pContentArray->InsertAt(0, pRef); } else if(pContentObj && pContentObj->GetType() == PDFOBJ_REFERENCE) { CPDF_Reference* pReference = (CPDF_Reference*)pContentObj; CPDF_Object* pDirectObj = pReference->GetDirect(); if(pDirectObj != NULL) { if(pDirectObj->GetType() == PDFOBJ_ARRAY) { pContentArray = (CPDF_Array*)pDirectObj; CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum()); pContentArray->InsertAt(0, pRef); } else if(pDirectObj->GetType() == PDFOBJ_STREAM) { pContentArray = FX_NEW CPDF_Array(); pContentArray->AddReference(pDoc,pStream->GetObjNum()); pContentArray->AddReference(pDoc,pDirectObj->GetObjNum()); pPageDic->SetAtReference("Contents", pDoc, pDoc->AddIndirectObject(pContentArray)); } } } }
DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page, FPDF_CLIPPATH clipPath) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); if (!pPage) return; CPDF_Dictionary* pPageDic = pPage->m_pFormDict; CPDF_Object* pContentObj = pPageDic ? pPageDic->GetObjectFor("Contents") : nullptr; if (!pContentObj) pContentObj = pPageDic ? pPageDic->GetArrayFor("Contents") : nullptr; if (!pContentObj) return; CFX_ByteTextBuf strClip; CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath; uint32_t i; for (i = 0; i < pClipPath->GetPathCount(); i++) { CPDF_Path path = pClipPath->GetPath(i); int iClipType = pClipPath->GetClipType(i); if (path.GetPoints().empty()) { // Empty clipping (totally clipped out) strClip << "0 0 m W n "; } else { OutputPath(strClip, path); if (iClipType == FXFILL_WINDING) strClip << "W n\n"; else strClip << "W* n\n"; } } CPDF_Document* pDoc = pPage->m_pDocument; if (!pDoc) return; CPDF_Stream* pStream = pDoc->NewIndirect<CPDF_Stream>( nullptr, 0, pdfium::MakeUnique<CPDF_Dictionary>(pDoc->GetByteStringPool())); pStream->SetData(strClip.GetBuffer(), strClip.GetSize()); CPDF_Array* pArray = ToArray(pContentObj); if (pArray) { pArray->InsertNewAt<CPDF_Reference>(0, pDoc, pStream->GetObjNum()); return; } CPDF_Reference* pReference = ToReference(pContentObj); if (!pReference) return; CPDF_Object* pDirectObj = pReference->GetDirect(); if (!pDirectObj) return; CPDF_Array* pObjArray = pDirectObj->AsArray(); if (pObjArray) { pObjArray->InsertNewAt<CPDF_Reference>(0, pDoc, pStream->GetObjNum()); return; } if (pDirectObj->IsStream()) { CPDF_Array* pContentArray = pDoc->NewIndirect<CPDF_Array>(); pContentArray->AddNew<CPDF_Reference>(pDoc, pStream->GetObjNum()); pContentArray->AddNew<CPDF_Reference>(pDoc, pDirectObj->GetObjNum()); pPageDic->SetNewFor<CPDF_Reference>("Contents", pDoc, pContentArray->GetObjNum()); } }