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