// Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #include "public/fpdf_edit.h" #include "core/fpdfapi/fpdf_edit/include/cpdf_pagecontentgenerator.h" #include "core/fpdfapi/fpdf_page/include/cpdf_form.h" #include "core/fpdfapi/fpdf_page/include/cpdf_formobject.h" #include "core/fpdfapi/fpdf_page/include/cpdf_generalstatedata.h" #include "core/fpdfapi/fpdf_page/include/cpdf_imageobject.h" #include "core/fpdfapi/fpdf_page/include/cpdf_page.h" #include "core/fpdfapi/fpdf_page/include/cpdf_pageobject.h" #include "core/fpdfapi/fpdf_page/include/cpdf_pathobject.h" #include "core/fpdfapi/fpdf_page/include/cpdf_shadingobject.h" #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h" #include "core/fpdfapi/fpdf_parser/include/cpdf_number.h" #include "core/fpdfapi/fpdf_parser/include/cpdf_string.h" #include "fpdfsdk/include/fsdk_define.h" #include "public/fpdf_formfill.h" #include "third_party/base/stl_util.h" #ifdef PDF_ENABLE_XFA #include "fpdfsdk/fpdfxfa/include/fpdfxfa_app.h" #include "fpdfsdk/fpdfxfa/include/fpdfxfa_doc.h" #include "fpdfsdk/fpdfxfa/include/fpdfxfa_page.h" #endif // PDF_ENABLE_XFA #if _FX_OS_ == _FX_ANDROID_ #include "time.h" #else #include <ctime> #endif DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_CreateNewDocument() { CPDF_Document* pDoc = new CPDF_Document(nullptr); pDoc->CreateNewDoc(); time_t currentTime; CFX_ByteString DateStr; if (FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) { if (-1 != time(¤tTime)) { tm* pTM = localtime(¤tTime); if (pTM) { DateStr.Format("D:%04d%02d%02d%02d%02d%02d", pTM->tm_year + 1900, pTM->tm_mon + 1, pTM->tm_mday, pTM->tm_hour, pTM->tm_min, pTM->tm_sec); } } } CPDF_Dictionary* pInfoDict = NULL; pInfoDict = pDoc->GetInfo(); if (pInfoDict) { if (FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) pInfoDict->SetAt("CreationDate", new CPDF_String(DateStr, FALSE)); pInfoDict->SetAt("Creator", new CPDF_String(L"PDFium")); } return FPDFDocumentFromCPDFDocument(pDoc); } DLLEXPORT void STDCALL FPDFPage_Delete(FPDF_DOCUMENT document, int page_index) { if (UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document)) pDoc->DeletePage(page_index); } DLLEXPORT FPDF_PAGE STDCALL FPDFPage_New(FPDF_DOCUMENT document, int page_index, double width, double height) { CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); if (!pDoc) return nullptr; if (page_index < 0) page_index = 0; if (pDoc->GetPageCount() < page_index) page_index = pDoc->GetPageCount(); CPDF_Dictionary* pPageDict = pDoc->CreateNewPage(page_index); if (!pPageDict) return NULL; CPDF_Array* pMediaBoxArray = new CPDF_Array; pMediaBoxArray->Add(new CPDF_Number(0)); pMediaBoxArray->Add(new CPDF_Number(0)); pMediaBoxArray->Add(new CPDF_Number(FX_FLOAT(width))); pMediaBoxArray->Add(new CPDF_Number(FX_FLOAT(height))); pPageDict->SetAt("MediaBox", pMediaBoxArray); pPageDict->SetAt("Rotate", new CPDF_Number(0)); pPageDict->SetAt("Resources", new CPDF_Dictionary); #ifdef PDF_ENABLE_XFA CPDFXFA_Page* pPage = new CPDFXFA_Page((CPDFXFA_Document*)document, page_index); pPage->LoadPDFPage(pPageDict); #else // PDF_ENABLE_XFA CPDF_Page* pPage = new CPDF_Page(pDoc, pPageDict, true); pPage->ParseContent(); #endif // PDF_ENABLE_XFA return pPage; } DLLEXPORT int STDCALL FPDFPage_GetRotation(FPDF_PAGE page) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); if (!pPage || !pPage->m_pFormDict || !pPage->m_pFormDict->KeyExist("Type") || !pPage->m_pFormDict->GetObjectBy("Type")->GetDirect() || pPage->m_pFormDict->GetObjectBy("Type")->GetDirect()->GetString().Compare( "Page")) { return -1; } CPDF_Dictionary* pDict = pPage->m_pFormDict; if (!pDict) return -1; while (pDict) { if (pDict->KeyExist("Rotate")) { CPDF_Object* pRotateObj = pDict->GetObjectBy("Rotate")->GetDirect(); return pRotateObj ? pRotateObj->GetInteger() / 90 : 0; } if (!pDict->KeyExist("Parent")) break; pDict = ToDictionary(pDict->GetObjectBy("Parent")->GetDirect()); } return 0; } DLLEXPORT void STDCALL FPDFPage_InsertObject(FPDF_PAGE page, FPDF_PAGEOBJECT page_obj) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); if (!pPage || !pPage->m_pFormDict || !pPage->m_pFormDict->KeyExist("Type") || !pPage->m_pFormDict->GetObjectBy("Type")->GetDirect() || pPage->m_pFormDict->GetObjectBy("Type")->GetDirect()->GetString().Compare( "Page")) { return; } CPDF_PageObject* pPageObj = (CPDF_PageObject*)page_obj; if (!pPageObj) return; pPage->GetPageObjectList()->push_back( std::unique_ptr<CPDF_PageObject>(pPageObj)); switch (pPageObj->GetType()) { case FPDF_PAGEOBJ_PATH: { CPDF_PathObject* pPathObj = pPageObj->AsPath(); pPathObj->CalcBoundingBox(); break; } case FPDF_PAGEOBJ_TEXT: { break; } case FPDF_PAGEOBJ_IMAGE: { CPDF_ImageObject* pImageObj = pPageObj->AsImage(); pImageObj->CalcBoundingBox(); break; } case FPDF_PAGEOBJ_SHADING: { CPDF_ShadingObject* pShadingObj = pPageObj->AsShading(); pShadingObj->CalcBoundingBox(); break; } case FPDF_PAGEOBJ_FORM: { CPDF_FormObject* pFormObj = pPageObj->AsForm(); pFormObj->CalcBoundingBox(); break; } default: break; } } DLLEXPORT int STDCALL FPDFPage_CountObject(FPDF_PAGE page) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); if (!pPage || !pPage->m_pFormDict || !pPage->m_pFormDict->KeyExist("Type") || !pPage->m_pFormDict->GetObjectBy("Type")->GetDirect() || pPage->m_pFormDict->GetObjectBy("Type")->GetDirect()->GetString().Compare( "Page")) { return -1; } return pdfium::CollectionSize<int>(*pPage->GetPageObjectList()); } DLLEXPORT FPDF_PAGEOBJECT STDCALL FPDFPage_GetObject(FPDF_PAGE page, int index) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); if (!pPage || !pPage->m_pFormDict || !pPage->m_pFormDict->KeyExist("Type") || pPage->m_pFormDict->GetObjectBy("Type")->GetDirect()->GetString().Compare( "Page")) { return nullptr; } return pPage->GetPageObjectList()->GetPageObjectByIndex(index); } DLLEXPORT FPDF_BOOL STDCALL FPDFPage_HasTransparency(FPDF_PAGE page) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); return pPage && pPage->BackgroundAlphaNeeded(); } DLLEXPORT FPDF_BOOL STDCALL FPDFPageObj_HasTransparency(FPDF_PAGEOBJECT pageObject) { if (!pageObject) return FALSE; CPDF_PageObject* pPageObj = (CPDF_PageObject*)pageObject; const CPDF_GeneralStateData* pGeneralState = pPageObj->m_GeneralState; int blend_type = pGeneralState ? pGeneralState->m_BlendType : FXDIB_BLEND_NORMAL; if (blend_type != FXDIB_BLEND_NORMAL) return TRUE; CPDF_Dictionary* pSMaskDict = pGeneralState ? ToDictionary(pGeneralState->m_pSoftMask) : NULL; if (pSMaskDict) return TRUE; if (pGeneralState && pGeneralState->m_FillAlpha != 1.0f) return TRUE; if (pPageObj->IsPath()) { if (pGeneralState && pGeneralState->m_StrokeAlpha != 1.0f) return TRUE; } if (pPageObj->IsForm()) { CPDF_FormObject* pFormObj = pPageObj->AsForm(); if (pFormObj->m_pForm && (pFormObj->m_pForm->m_Transparency & PDFTRANS_ISOLATED)) return TRUE; if (pFormObj->m_pForm && (!(pFormObj->m_pForm->m_Transparency & PDFTRANS_ISOLATED) && (pFormObj->m_pForm->m_Transparency & PDFTRANS_GROUP))) return TRUE; } return FALSE; } DLLEXPORT FPDF_BOOL STDCALL FPDFPage_GenerateContent(FPDF_PAGE page) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); if (!pPage || !pPage->m_pFormDict || !pPage->m_pFormDict->KeyExist("Type") || !pPage->m_pFormDict->GetObjectBy("Type")->GetDirect() || pPage->m_pFormDict->GetObjectBy("Type")->GetDirect()->GetString().Compare( "Page")) { return FALSE; } CPDF_PageContentGenerator CG(pPage); CG.GenerateContent(); return TRUE; } DLLEXPORT void STDCALL FPDFPageObj_Transform(FPDF_PAGEOBJECT page_object, double a, double b, double c, double d, double e, double f) { CPDF_PageObject* pPageObj = (CPDF_PageObject*)page_object; if (!pPageObj) return; CFX_Matrix matrix((FX_FLOAT)a, (FX_FLOAT)b, (FX_FLOAT)c, (FX_FLOAT)d, (FX_FLOAT)e, (FX_FLOAT)f); pPageObj->Transform(matrix); } DLLEXPORT void STDCALL FPDFPage_TransformAnnots(FPDF_PAGE page, double a, double b, double c, double d, double e, double f) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); if (!pPage) return; CPDF_AnnotList AnnotList(pPage); for (size_t i = 0; i < AnnotList.Count(); ++i) { CPDF_Annot* pAnnot = AnnotList.GetAt(i); // transformAnnots Rectangle CFX_FloatRect rect; pAnnot->GetRect(rect); CFX_Matrix matrix((FX_FLOAT)a, (FX_FLOAT)b, (FX_FLOAT)c, (FX_FLOAT)d, (FX_FLOAT)e, (FX_FLOAT)f); rect.Transform(&matrix); CPDF_Array* pRectArray = NULL; pRectArray = pAnnot->GetAnnotDict()->GetArrayBy("Rect"); if (!pRectArray) pRectArray = new CPDF_Array; pRectArray->SetAt(0, new CPDF_Number(rect.left)); pRectArray->SetAt(1, new CPDF_Number(rect.bottom)); pRectArray->SetAt(2, new CPDF_Number(rect.right)); pRectArray->SetAt(3, new CPDF_Number(rect.top)); pAnnot->GetAnnotDict()->SetAt("Rect", pRectArray); // Transform AP's rectangle // To Do } } DLLEXPORT void STDCALL FPDFPage_SetRotation(FPDF_PAGE page, int rotate) { CPDF_Page* pPage = CPDFPageFromFPDFPage(page); if (!pPage || !pPage->m_pFormDict || !pPage->m_pFormDict->KeyExist("Type") || !pPage->m_pFormDict->GetObjectBy("Type")->GetDirect() || pPage->m_pFormDict->GetObjectBy("Type")->GetDirect()->GetString().Compare( "Page")) { return; } CPDF_Dictionary* pDict = pPage->m_pFormDict; rotate %= 4; pDict->SetAt("Rotate", new CPDF_Number(rotate * 90)); }