| // Copyright 2014 The PDFium Authors |
| // 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 <algorithm> |
| #include <memory> |
| #include <utility> |
| #include <vector> |
| |
| #include "constants/page_object.h" |
| #include "core/fpdfapi/edit/cpdf_pagecontentgenerator.h" |
| #include "core/fpdfapi/page/cpdf_colorspace.h" |
| #include "core/fpdfapi/page/cpdf_docpagedata.h" |
| #include "core/fpdfapi/page/cpdf_form.h" |
| #include "core/fpdfapi/page/cpdf_formobject.h" |
| #include "core/fpdfapi/page/cpdf_imageobject.h" |
| #include "core/fpdfapi/page/cpdf_page.h" |
| #include "core/fpdfapi/page/cpdf_pageimagecache.h" |
| #include "core/fpdfapi/page/cpdf_pageobject.h" |
| #include "core/fpdfapi/page/cpdf_pathobject.h" |
| #include "core/fpdfapi/page/cpdf_shadingobject.h" |
| #include "core/fpdfapi/page/cpdf_textobject.h" |
| #include "core/fpdfapi/parser/cpdf_array.h" |
| #include "core/fpdfapi/parser/cpdf_dictionary.h" |
| #include "core/fpdfapi/parser/cpdf_document.h" |
| #include "core/fpdfapi/parser/cpdf_name.h" |
| #include "core/fpdfapi/parser/cpdf_number.h" |
| #include "core/fpdfapi/parser/cpdf_string.h" |
| #include "core/fpdfapi/render/cpdf_docrenderdata.h" |
| #include "core/fpdfdoc/cpdf_annot.h" |
| #include "core/fpdfdoc/cpdf_annotlist.h" |
| #include "core/fxcrt/fx_extension.h" |
| #include "core/fxcrt/stl_util.h" |
| #include "fpdfsdk/cpdfsdk_helpers.h" |
| #include "public/fpdf_formfill.h" |
| #include "third_party/base/cxx17_backports.h" |
| #include "third_party/base/numerics/safe_conversions.h" |
| |
| #ifdef PDF_ENABLE_XFA |
| #include "fpdfsdk/fpdfxfa/cpdfxfa_context.h" |
| #include "fpdfsdk/fpdfxfa/cpdfxfa_page.h" |
| #endif // PDF_ENABLE_XFA |
| |
| namespace { |
| |
| static_assert(FPDF_PAGEOBJ_TEXT == |
| static_cast<int>(CPDF_PageObject::Type::kText), |
| "FPDF_PAGEOBJ_TEXT/CPDF_PageObject::TEXT mismatch"); |
| static_assert(FPDF_PAGEOBJ_PATH == |
| static_cast<int>(CPDF_PageObject::Type::kPath), |
| "FPDF_PAGEOBJ_PATH/CPDF_PageObject::PATH mismatch"); |
| static_assert(FPDF_PAGEOBJ_IMAGE == |
| static_cast<int>(CPDF_PageObject::Type::kImage), |
| "FPDF_PAGEOBJ_IMAGE/CPDF_PageObject::IMAGE mismatch"); |
| static_assert(FPDF_PAGEOBJ_SHADING == |
| static_cast<int>(CPDF_PageObject::Type::kShading), |
| "FPDF_PAGEOBJ_SHADING/CPDF_PageObject::SHADING mismatch"); |
| static_assert(FPDF_PAGEOBJ_FORM == |
| static_cast<int>(CPDF_PageObject::Type::kForm), |
| "FPDF_PAGEOBJ_FORM/CPDF_PageObject::FORM mismatch"); |
| |
| bool IsPageObject(CPDF_Page* pPage) { |
| if (!pPage) |
| return false; |
| |
| RetainPtr<const CPDF_Dictionary> pFormDict = pPage->GetDict(); |
| if (!pFormDict->KeyExist(pdfium::page_object::kType)) |
| return false; |
| |
| RetainPtr<const CPDF_Name> pName = |
| ToName(pFormDict->GetObjectFor(pdfium::page_object::kType)->GetDirect()); |
| return pName && pName->GetString() == "Page"; |
| } |
| |
| void CalcBoundingBox(CPDF_PageObject* pPageObj) { |
| switch (pPageObj->GetType()) { |
| case CPDF_PageObject::Type::kText: { |
| break; |
| } |
| case CPDF_PageObject::Type::kPath: { |
| CPDF_PathObject* pPathObj = pPageObj->AsPath(); |
| pPathObj->CalcBoundingBox(); |
| break; |
| } |
| case CPDF_PageObject::Type::kImage: { |
| CPDF_ImageObject* pImageObj = pPageObj->AsImage(); |
| pImageObj->CalcBoundingBox(); |
| break; |
| } |
| case CPDF_PageObject::Type::kShading: { |
| CPDF_ShadingObject* pShadingObj = pPageObj->AsShading(); |
| pShadingObj->CalcBoundingBox(); |
| break; |
| } |
| case CPDF_PageObject::Type::kForm: { |
| CPDF_FormObject* pFormObj = pPageObj->AsForm(); |
| pFormObj->CalcBoundingBox(); |
| break; |
| } |
| } |
| } |
| |
| RetainPtr<CPDF_Dictionary> GetMarkParamDict(FPDF_PAGEOBJECTMARK mark) { |
| CPDF_ContentMarkItem* pMarkItem = |
| CPDFContentMarkItemFromFPDFPageObjectMark(mark); |
| return pMarkItem ? pMarkItem->GetParam() : nullptr; |
| } |
| |
| RetainPtr<CPDF_Dictionary> GetOrCreateMarkParamsDict(FPDF_DOCUMENT document, |
| FPDF_PAGEOBJECTMARK mark) { |
| CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); |
| if (!pDoc) |
| return nullptr; |
| |
| CPDF_ContentMarkItem* pMarkItem = |
| CPDFContentMarkItemFromFPDFPageObjectMark(mark); |
| if (!pMarkItem) |
| return nullptr; |
| |
| RetainPtr<CPDF_Dictionary> pParams = pMarkItem->GetParam(); |
| if (!pParams) { |
| pParams = pDoc->New<CPDF_Dictionary>(); |
| pMarkItem->SetDirectDict(pParams); |
| } |
| return pParams; |
| } |
| |
| bool PageObjectContainsMark(CPDF_PageObject* pPageObj, |
| FPDF_PAGEOBJECTMARK mark) { |
| const CPDF_ContentMarkItem* pMarkItem = |
| CPDFContentMarkItemFromFPDFPageObjectMark(mark); |
| return pMarkItem && pPageObj->GetContentMarks()->ContainsItem(pMarkItem); |
| } |
| |
| CPDF_FormObject* CPDFFormObjectFromFPDFPageObject(FPDF_PAGEOBJECT page_object) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| return pPageObj ? pPageObj->AsForm() : nullptr; |
| } |
| |
| const CPDF_PageObjectHolder* CPDFPageObjHolderFromFPDFFormObject( |
| FPDF_PAGEOBJECT page_object) { |
| CPDF_FormObject* pFormObject = CPDFFormObjectFromFPDFPageObject(page_object); |
| return pFormObject ? pFormObject->form() : nullptr; |
| } |
| |
| } // namespace |
| |
| FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV FPDF_CreateNewDocument() { |
| auto pDoc = |
| std::make_unique<CPDF_Document>(std::make_unique<CPDF_DocRenderData>(), |
| std::make_unique<CPDF_DocPageData>()); |
| pDoc->CreateNewDoc(); |
| |
| time_t currentTime; |
| ByteString DateStr; |
| if (IsPDFSandboxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) { |
| if (FXSYS_time(¤tTime) != -1) { |
| tm* pTM = FXSYS_localtime(¤tTime); |
| if (pTM) { |
| DateStr = ByteString::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); |
| } |
| } |
| } |
| |
| RetainPtr<CPDF_Dictionary> pInfoDict = pDoc->GetInfo(); |
| if (pInfoDict) { |
| if (IsPDFSandboxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) |
| pInfoDict->SetNewFor<CPDF_String>("CreationDate", DateStr, false); |
| pInfoDict->SetNewFor<CPDF_String>("Creator", L"PDFium"); |
| } |
| |
| // Caller takes ownership of pDoc. |
| return FPDFDocumentFromCPDFDocument(pDoc.release()); |
| } |
| |
| FPDF_EXPORT void FPDF_CALLCONV FPDFPage_Delete(FPDF_DOCUMENT document, |
| int page_index) { |
| auto* pDoc = CPDFDocumentFromFPDFDocument(document); |
| if (!pDoc) |
| return; |
| |
| CPDF_Document::Extension* pExtension = pDoc->GetExtension(); |
| if (pExtension) { |
| pExtension->DeletePage(page_index); |
| return; |
| } |
| |
| pDoc->DeletePage(page_index); |
| } |
| |
| FPDF_EXPORT FPDF_PAGE FPDF_CALLCONV FPDFPage_New(FPDF_DOCUMENT document, |
| int page_index, |
| double width, |
| double height) { |
| CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); |
| if (!pDoc) |
| return nullptr; |
| |
| page_index = pdfium::clamp(page_index, 0, pDoc->GetPageCount()); |
| RetainPtr<CPDF_Dictionary> pPageDict(pDoc->CreateNewPage(page_index)); |
| if (!pPageDict) |
| return nullptr; |
| |
| pPageDict->SetRectFor(pdfium::page_object::kMediaBox, |
| CFX_FloatRect(0, 0, width, height)); |
| pPageDict->SetNewFor<CPDF_Number>(pdfium::page_object::kRotate, 0); |
| pPageDict->SetNewFor<CPDF_Dictionary>(pdfium::page_object::kResources); |
| |
| #ifdef PDF_ENABLE_XFA |
| if (pDoc->GetExtension()) { |
| auto pXFAPage = pdfium::MakeRetain<CPDFXFA_Page>(pDoc, page_index); |
| pXFAPage->LoadPDFPageFromDict(pPageDict); |
| return FPDFPageFromIPDFPage(pXFAPage.Leak()); // Caller takes ownership. |
| } |
| #endif // PDF_ENABLE_XFA |
| |
| auto pPage = pdfium::MakeRetain<CPDF_Page>(pDoc, pPageDict); |
| pPage->AddPageImageCache(); |
| pPage->ParseContent(); |
| |
| return FPDFPageFromIPDFPage(pPage.Leak()); // Caller takes ownership. |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPage_GetRotation(FPDF_PAGE page) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| return IsPageObject(pPage) ? pPage->GetPageRotation() : -1; |
| } |
| |
| FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertObject(FPDF_PAGE page, |
| FPDF_PAGEOBJECT page_obj) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_obj); |
| if (!pPageObj) |
| return; |
| |
| std::unique_ptr<CPDF_PageObject> pPageObjHolder(pPageObj); |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!IsPageObject(pPage)) |
| return; |
| |
| pPageObj->SetDirty(true); |
| pPage->AppendPageObject(std::move(pPageObjHolder)); |
| CalcBoundingBox(pPageObj); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPage_RemoveObject(FPDF_PAGE page, FPDF_PAGEOBJECT page_obj) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_obj); |
| if (!pPageObj) |
| return false; |
| |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!IsPageObject(pPage)) |
| return false; |
| |
| // Caller takes ownership. |
| return !!pPage->RemovePageObject(pPageObj).release(); |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPage_CountObjects(FPDF_PAGE page) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!IsPageObject(pPage)) |
| return -1; |
| |
| return pdfium::base::checked_cast<int>(pPage->GetPageObjectCount()); |
| } |
| |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPage_GetObject(FPDF_PAGE page, |
| int index) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!IsPageObject(pPage)) |
| return nullptr; |
| |
| return FPDFPageObjectFromCPDFPageObject(pPage->GetPageObjectByIndex(index)); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_HasTransparency(FPDF_PAGE page) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| return pPage && pPage->BackgroundAlphaNeeded(); |
| } |
| |
| FPDF_EXPORT void FPDF_CALLCONV FPDFPageObj_Destroy(FPDF_PAGEOBJECT page_obj) { |
| delete CPDFPageObjectFromFPDFPageObject(page_obj); |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFPageObj_CountMarks(FPDF_PAGEOBJECT page_object) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return -1; |
| |
| return pdfium::base::checked_cast<int>( |
| pPageObj->GetContentMarks()->CountItems()); |
| } |
| |
| FPDF_EXPORT FPDF_PAGEOBJECTMARK FPDF_CALLCONV |
| FPDFPageObj_GetMark(FPDF_PAGEOBJECT page_object, unsigned long index) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return nullptr; |
| |
| CPDF_ContentMarks* pMarks = pPageObj->GetContentMarks(); |
| if (index >= pMarks->CountItems()) |
| return nullptr; |
| |
| return FPDFPageObjectMarkFromCPDFContentMarkItem(pMarks->GetItem(index)); |
| } |
| |
| FPDF_EXPORT FPDF_PAGEOBJECTMARK FPDF_CALLCONV |
| FPDFPageObj_AddMark(FPDF_PAGEOBJECT page_object, FPDF_BYTESTRING name) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return nullptr; |
| |
| CPDF_ContentMarks* pMarks = pPageObj->GetContentMarks(); |
| pMarks->AddMark(name); |
| pPageObj->SetDirty(true); |
| |
| const size_t index = pMarks->CountItems() - 1; |
| return FPDFPageObjectMarkFromCPDFContentMarkItem(pMarks->GetItem(index)); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_RemoveMark(FPDF_PAGEOBJECT page_object, FPDF_PAGEOBJECTMARK mark) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| CPDF_ContentMarkItem* pMarkItem = |
| CPDFContentMarkItemFromFPDFPageObjectMark(mark); |
| if (!pPageObj || !pMarkItem) |
| return false; |
| |
| if (!pPageObj->GetContentMarks()->RemoveMark(pMarkItem)) |
| return false; |
| |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetName(FPDF_PAGEOBJECTMARK mark, |
| void* buffer, |
| unsigned long buflen, |
| unsigned long* out_buflen) { |
| const CPDF_ContentMarkItem* pMarkItem = |
| CPDFContentMarkItemFromFPDFPageObjectMark(mark); |
| if (!pMarkItem || !out_buflen) |
| return false; |
| |
| *out_buflen = Utf16EncodeMaybeCopyAndReturnLength( |
| WideString::FromUTF8(pMarkItem->GetName().AsStringView()), buffer, |
| buflen); |
| return true; |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFPageObjMark_CountParams(FPDF_PAGEOBJECTMARK mark) { |
| const CPDF_ContentMarkItem* pMarkItem = |
| CPDFContentMarkItemFromFPDFPageObjectMark(mark); |
| if (!pMarkItem) |
| return -1; |
| |
| RetainPtr<const CPDF_Dictionary> pParams = pMarkItem->GetParam(); |
| return pParams ? fxcrt::CollectionSize<int>(*pParams) : 0; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetParamKey(FPDF_PAGEOBJECTMARK mark, |
| unsigned long index, |
| void* buffer, |
| unsigned long buflen, |
| unsigned long* out_buflen) { |
| if (!out_buflen) |
| return false; |
| |
| RetainPtr<const CPDF_Dictionary> pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return false; |
| |
| CPDF_DictionaryLocker locker(pParams); |
| for (auto& it : locker) { |
| if (index == 0) { |
| *out_buflen = Utf16EncodeMaybeCopyAndReturnLength( |
| WideString::FromUTF8(it.first.AsStringView()), buffer, buflen); |
| return true; |
| } |
| --index; |
| } |
| |
| return false; |
| } |
| |
| FPDF_EXPORT FPDF_OBJECT_TYPE FPDF_CALLCONV |
| FPDFPageObjMark_GetParamValueType(FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key) { |
| RetainPtr<const CPDF_Dictionary> pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return FPDF_OBJECT_UNKNOWN; |
| |
| RetainPtr<const CPDF_Object> pObject = pParams->GetObjectFor(key); |
| return pObject ? pObject->GetType() : FPDF_OBJECT_UNKNOWN; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetParamIntValue(FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| int* out_value) { |
| if (!out_value) |
| return false; |
| |
| RetainPtr<const CPDF_Dictionary> pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return false; |
| |
| RetainPtr<const CPDF_Object> pObj = pParams->GetObjectFor(key); |
| if (!pObj || !pObj->IsNumber()) |
| return false; |
| |
| *out_value = pObj->GetInteger(); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetParamStringValue(FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| void* buffer, |
| unsigned long buflen, |
| unsigned long* out_buflen) { |
| if (!out_buflen) |
| return false; |
| |
| RetainPtr<const CPDF_Dictionary> pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return false; |
| |
| RetainPtr<const CPDF_Object> pObj = pParams->GetObjectFor(key); |
| if (!pObj || !pObj->IsString()) |
| return false; |
| |
| *out_buflen = Utf16EncodeMaybeCopyAndReturnLength( |
| WideString::FromUTF8(pObj->GetString().AsStringView()), buffer, buflen); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetParamBlobValue(FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| void* buffer, |
| unsigned long buflen, |
| unsigned long* out_buflen) { |
| if (!out_buflen) |
| return false; |
| |
| RetainPtr<const CPDF_Dictionary> pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return false; |
| |
| RetainPtr<const CPDF_Object> pObj = pParams->GetObjectFor(key); |
| if (!pObj || !pObj->IsString()) |
| return false; |
| |
| ByteString result = pObj->GetString(); |
| const unsigned long len = |
| pdfium::base::checked_cast<unsigned long>(result.GetLength()); |
| |
| if (buffer && len <= buflen) |
| memcpy(buffer, result.c_str(), len); |
| |
| *out_buflen = len; |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_HasTransparency(FPDF_PAGEOBJECT page_object) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return false; |
| |
| if (pPageObj->m_GeneralState.GetBlendType() != BlendMode::kNormal) |
| return true; |
| |
| if (pPageObj->m_GeneralState.GetSoftMask()) |
| return true; |
| |
| if (pPageObj->m_GeneralState.GetFillAlpha() != 1.0f) |
| return true; |
| |
| if (pPageObj->IsPath() && pPageObj->m_GeneralState.GetStrokeAlpha() != 1.0f) |
| return true; |
| |
| if (!pPageObj->IsForm()) |
| return false; |
| |
| const CPDF_Form* pForm = pPageObj->AsForm()->form(); |
| if (!pForm) |
| return false; |
| |
| const CPDF_Transparency& trans = pForm->GetTransparency(); |
| return trans.IsGroup() || trans.IsIsolated(); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_SetIntParam(FPDF_DOCUMENT document, |
| FPDF_PAGEOBJECT page_object, |
| FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| int value) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || !PageObjectContainsMark(pPageObj, mark)) |
| return false; |
| |
| RetainPtr<CPDF_Dictionary> pParams = |
| GetOrCreateMarkParamsDict(document, mark); |
| if (!pParams) |
| return false; |
| |
| pParams->SetNewFor<CPDF_Number>(key, value); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_SetStringParam(FPDF_DOCUMENT document, |
| FPDF_PAGEOBJECT page_object, |
| FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| FPDF_BYTESTRING value) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || !PageObjectContainsMark(pPageObj, mark)) |
| return false; |
| |
| RetainPtr<CPDF_Dictionary> pParams = |
| GetOrCreateMarkParamsDict(document, mark); |
| if (!pParams) |
| return false; |
| |
| pParams->SetNewFor<CPDF_String>(key, value, false); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_SetBlobParam(FPDF_DOCUMENT document, |
| FPDF_PAGEOBJECT page_object, |
| FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| void* value, |
| unsigned long value_len) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || !PageObjectContainsMark(pPageObj, mark)) |
| return false; |
| |
| RetainPtr<CPDF_Dictionary> pParams = |
| GetOrCreateMarkParamsDict(document, mark); |
| if (!pParams) |
| return false; |
| |
| if (!value && value_len > 0) |
| return false; |
| |
| pParams->SetNewFor<CPDF_String>( |
| key, ByteString(static_cast<const char*>(value), value_len), true); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_RemoveParam(FPDF_PAGEOBJECT page_object, |
| FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return false; |
| |
| RetainPtr<CPDF_Dictionary> pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return false; |
| |
| auto removed = pParams->RemoveFor(key); |
| if (!removed) |
| return false; |
| |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_GetType(FPDF_PAGEOBJECT page_object) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| return pPageObj ? static_cast<int>(pPageObj->GetType()) |
| : FPDF_PAGEOBJ_UNKNOWN; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GenerateContent(FPDF_PAGE page) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!IsPageObject(pPage)) |
| return false; |
| |
| CPDF_PageContentGenerator CG(pPage); |
| CG.GenerateContent(); |
| return true; |
| } |
| |
| FPDF_EXPORT void FPDF_CALLCONV |
| FPDFPageObj_Transform(FPDF_PAGEOBJECT page_object, |
| double a, |
| double b, |
| double c, |
| double d, |
| double e, |
| double f) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return; |
| |
| CFX_Matrix matrix((float)a, (float)b, (float)c, (float)d, (float)e, (float)f); |
| pPageObj->Transform(matrix); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetMatrix(FPDF_PAGEOBJECT page_object, FS_MATRIX* matrix) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || !matrix) |
| return false; |
| |
| switch (pPageObj->GetType()) { |
| case CPDF_PageObject::Type::kText: |
| *matrix = FSMatrixFromCFXMatrix(pPageObj->AsText()->GetTextMatrix()); |
| return true; |
| case CPDF_PageObject::Type::kPath: |
| *matrix = FSMatrixFromCFXMatrix(pPageObj->AsPath()->matrix()); |
| return true; |
| case CPDF_PageObject::Type::kImage: |
| *matrix = FSMatrixFromCFXMatrix(pPageObj->AsImage()->matrix()); |
| return true; |
| case CPDF_PageObject::Type::kShading: |
| return false; |
| case CPDF_PageObject::Type::kForm: |
| *matrix = FSMatrixFromCFXMatrix(pPageObj->AsForm()->form_matrix()); |
| return true; |
| } |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetMatrix(FPDF_PAGEOBJECT page_object, const FS_MATRIX* matrix) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || !matrix) |
| return false; |
| |
| CFX_Matrix cmatrix = CFXMatrixFromFSMatrix(*matrix); |
| switch (pPageObj->GetType()) { |
| case CPDF_PageObject::Type::kText: |
| pPageObj->AsText()->SetTextMatrix(cmatrix); |
| break; |
| case CPDF_PageObject::Type::kPath: |
| pPageObj->AsPath()->SetPathMatrix(cmatrix); |
| break; |
| case CPDF_PageObject::Type::kImage: |
| pPageObj->AsImage()->SetImageMatrix(cmatrix); |
| break; |
| case CPDF_PageObject::Type::kShading: |
| return false; |
| case CPDF_PageObject::Type::kForm: |
| pPageObj->AsForm()->SetFormMatrix(cmatrix); |
| break; |
| } |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT void FPDF_CALLCONV |
| FPDFPageObj_SetBlendMode(FPDF_PAGEOBJECT page_object, |
| FPDF_BYTESTRING blend_mode) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return; |
| |
| pPageObj->m_GeneralState.SetBlendMode(blend_mode); |
| pPageObj->SetDirty(true); |
| } |
| |
| FPDF_EXPORT void FPDF_CALLCONV 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); |
| CFX_Matrix matrix((float)a, (float)b, (float)c, (float)d, (float)e, |
| (float)f); |
| CFX_FloatRect rect = matrix.TransformRect(pAnnot->GetRect()); |
| |
| RetainPtr<CPDF_Dictionary> pAnnotDict = pAnnot->GetMutableAnnotDict(); |
| RetainPtr<CPDF_Array> pRectArray = pAnnotDict->GetMutableArrayFor("Rect"); |
| if (pRectArray) |
| pRectArray->Clear(); |
| else |
| pRectArray = pAnnotDict->SetNewFor<CPDF_Array>("Rect"); |
| |
| pRectArray->AppendNew<CPDF_Number>(rect.left); |
| pRectArray->AppendNew<CPDF_Number>(rect.bottom); |
| pRectArray->AppendNew<CPDF_Number>(rect.right); |
| pRectArray->AppendNew<CPDF_Number>(rect.top); |
| |
| // TODO(unknown): Transform AP's rectangle |
| } |
| } |
| |
| FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetRotation(FPDF_PAGE page, |
| int rotate) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!IsPageObject(pPage)) |
| return; |
| |
| rotate %= 4; |
| pPage->GetMutableDict()->SetNewFor<CPDF_Number>(pdfium::page_object::kRotate, |
| rotate * 90); |
| pPage->UpdateDimensions(); |
| } |
| |
| FPDF_BOOL FPDFPageObj_SetFillColor(FPDF_PAGEOBJECT page_object, |
| unsigned int R, |
| unsigned int G, |
| unsigned int B, |
| unsigned int A) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || R > 255 || G > 255 || B > 255 || A > 255) |
| return false; |
| |
| std::vector<float> rgb = {R / 255.f, G / 255.f, B / 255.f}; |
| pPageObj->m_GeneralState.SetFillAlpha(A / 255.f); |
| pPageObj->m_ColorState.SetFillColor( |
| CPDF_ColorSpace::GetStockCS(CPDF_ColorSpace::Family::kDeviceRGB), |
| std::move(rgb)); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetFillColor(FPDF_PAGEOBJECT page_object, |
| unsigned int* R, |
| unsigned int* G, |
| unsigned int* B, |
| unsigned int* A) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || !R || !G || !B || !A) |
| return false; |
| |
| if (!pPageObj->m_ColorState.HasRef()) |
| return false; |
| |
| FX_COLORREF fill_color = pPageObj->m_ColorState.GetFillColorRef(); |
| *R = FXSYS_GetRValue(fill_color); |
| *G = FXSYS_GetGValue(fill_color); |
| *B = FXSYS_GetBValue(fill_color); |
| *A = FXSYS_GetUnsignedAlpha(pPageObj->m_GeneralState.GetFillAlpha()); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetBounds(FPDF_PAGEOBJECT page_object, |
| float* left, |
| float* bottom, |
| float* right, |
| float* top) { |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return false; |
| |
| const CFX_FloatRect& bbox = pPageObj->GetRect(); |
| *left = bbox.left; |
| *bottom = bbox.bottom; |
| *right = bbox.right; |
| *top = bbox.top; |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetRotatedBounds(FPDF_PAGEOBJECT page_object, |
| FS_QUADPOINTSF* quad_points) { |
| CPDF_PageObject* cpage_object = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!cpage_object || !quad_points) |
| return false; |
| |
| CFX_Matrix matrix; |
| switch (cpage_object->GetType()) { |
| case CPDF_PageObject::Type::kText: |
| matrix = cpage_object->AsText()->GetTextMatrix(); |
| break; |
| case CPDF_PageObject::Type::kImage: |
| matrix = cpage_object->AsImage()->matrix(); |
| break; |
| default: |
| // TODO(crbug.com/pdfium/1840): Support more object types. |
| return false; |
| } |
| |
| const CFX_FloatRect& bbox = cpage_object->GetOriginalRect(); |
| const CFX_PointF bottom_left = matrix.Transform({bbox.left, bbox.bottom}); |
| const CFX_PointF bottom_right = matrix.Transform({bbox.right, bbox.bottom}); |
| const CFX_PointF top_right = matrix.Transform({bbox.right, bbox.top}); |
| const CFX_PointF top_left = matrix.Transform({bbox.left, bbox.top}); |
| |
| // See PDF 32000-1:2008, figure 64 for the QuadPoints ordering. |
| quad_points->x1 = bottom_left.x; |
| quad_points->y1 = bottom_left.y; |
| quad_points->x2 = bottom_right.x; |
| quad_points->y2 = bottom_right.y; |
| quad_points->x3 = top_right.x; |
| quad_points->y3 = top_right.y; |
| quad_points->x4 = top_left.x; |
| quad_points->y4 = top_left.y; |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetStrokeColor(FPDF_PAGEOBJECT page_object, |
| unsigned int R, |
| unsigned int G, |
| unsigned int B, |
| unsigned int A) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || R > 255 || G > 255 || B > 255 || A > 255) |
| return false; |
| |
| std::vector<float> rgb = {R / 255.f, G / 255.f, B / 255.f}; |
| pPageObj->m_GeneralState.SetStrokeAlpha(A / 255.f); |
| pPageObj->m_ColorState.SetStrokeColor( |
| CPDF_ColorSpace::GetStockCS(CPDF_ColorSpace::Family::kDeviceRGB), |
| std::move(rgb)); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetStrokeColor(FPDF_PAGEOBJECT page_object, |
| unsigned int* R, |
| unsigned int* G, |
| unsigned int* B, |
| unsigned int* A) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || !R || !G || !B || !A) |
| return false; |
| |
| if (!pPageObj->m_ColorState.HasRef()) |
| return false; |
| |
| FX_COLORREF stroke_color = pPageObj->m_ColorState.GetStrokeColorRef(); |
| *R = FXSYS_GetRValue(stroke_color); |
| *G = FXSYS_GetGValue(stroke_color); |
| *B = FXSYS_GetBValue(stroke_color); |
| *A = FXSYS_GetUnsignedAlpha(pPageObj->m_GeneralState.GetStrokeAlpha()); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetStrokeWidth(FPDF_PAGEOBJECT page_object, float width) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || width < 0.0f) |
| return false; |
| |
| pPageObj->m_GraphState.SetLineWidth(width); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetStrokeWidth(FPDF_PAGEOBJECT page_object, float* width) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || !width) |
| return false; |
| |
| *width = pPageObj->m_GraphState.GetLineWidth(); |
| return true; |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFPageObj_GetLineJoin(FPDF_PAGEOBJECT page_object) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| return pPageObj ? static_cast<int>(pPageObj->m_GraphState.GetLineJoin()) : -1; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetLineJoin(FPDF_PAGEOBJECT page_object, int line_join) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return false; |
| |
| if (line_join < FPDF_LINEJOIN_MITER || line_join > FPDF_LINEJOIN_BEVEL) |
| return false; |
| |
| pPageObj->m_GraphState.SetLineJoin( |
| static_cast<CFX_GraphStateData::LineJoin>(line_join)); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFPageObj_GetLineCap(FPDF_PAGEOBJECT page_object) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| return pPageObj ? static_cast<int>(pPageObj->m_GraphState.GetLineCap()) : -1; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetLineCap(FPDF_PAGEOBJECT page_object, int line_cap) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return false; |
| |
| if (line_cap < FPDF_LINECAP_BUTT || |
| line_cap > FPDF_LINECAP_PROJECTING_SQUARE) { |
| return false; |
| } |
| pPageObj->m_GraphState.SetLineCap( |
| static_cast<CFX_GraphStateData::LineCap>(line_cap)); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetDashPhase(FPDF_PAGEOBJECT page_object, float* phase) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || !phase) |
| return false; |
| |
| *phase = pPageObj->m_GraphState.GetLineDashPhase(); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetDashPhase(FPDF_PAGEOBJECT page_object, float phase) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return false; |
| |
| pPageObj->m_GraphState.SetLineDashPhase(phase); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFPageObj_GetDashCount(FPDF_PAGEOBJECT page_object) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| return pPageObj ? pdfium::base::checked_cast<int>( |
| pPageObj->m_GraphState.GetLineDashSize()) |
| : -1; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetDashArray(FPDF_PAGEOBJECT page_object, |
| float* dash_array, |
| size_t dash_count) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj || !dash_array) |
| return false; |
| |
| auto dash_vector = pPageObj->m_GraphState.GetLineDashArray(); |
| if (dash_vector.size() > dash_count) |
| return false; |
| |
| memcpy(dash_array, dash_vector.data(), dash_vector.size() * sizeof(float)); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetDashArray(FPDF_PAGEOBJECT page_object, |
| const float* dash_array, |
| size_t dash_count, |
| float phase) { |
| if (dash_count > 0 && !dash_array) |
| return false; |
| |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return false; |
| |
| std::vector<float> dashes; |
| if (dash_count > 0) { |
| dashes.reserve(dash_count); |
| dashes.assign(dash_array, dash_array + dash_count); |
| } |
| |
| pPageObj->m_GraphState.SetLineDash(dashes, phase, 1.0f); |
| |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFFormObj_CountObjects(FPDF_PAGEOBJECT form_object) { |
| const auto* pObjectList = CPDFPageObjHolderFromFPDFFormObject(form_object); |
| return pObjectList ? pdfium::base::checked_cast<int>( |
| pObjectList->GetPageObjectCount()) |
| : -1; |
| } |
| |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV |
| FPDFFormObj_GetObject(FPDF_PAGEOBJECT form_object, unsigned long index) { |
| const auto* pObjectList = CPDFPageObjHolderFromFPDFFormObject(form_object); |
| if (!pObjectList) |
| return nullptr; |
| |
| return FPDFPageObjectFromCPDFPageObject( |
| pObjectList->GetPageObjectByIndex(index)); |
| } |
