| // 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 <algorithm> |
| #include <memory> |
| #include <utility> |
| #include <vector> |
| |
| #include "constants/page_object.h" |
| #include "core/fpdfapi/edit/cpdf_pagecontentgenerator.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_pageobject.h" |
| #include "core/fpdfapi/page/cpdf_pathobject.h" |
| #include "core/fpdfapi/page/cpdf_shadingobject.h" |
| #include "core/fpdfapi/parser/cpdf_array.h" |
| #include "core/fpdfapi/parser/cpdf_document.h" |
| #include "core/fpdfapi/parser/cpdf_number.h" |
| #include "core/fpdfapi/parser/cpdf_string.h" |
| #include "core/fpdfdoc/cpdf_annot.h" |
| #include "core/fpdfdoc/cpdf_annotlist.h" |
| #include "core/fxcrt/fx_extension.h" |
| #include "fpdfsdk/cpdfsdk_helpers.h" |
| #include "public/fpdf_formfill.h" |
| #include "third_party/base/logging.h" |
| #include "third_party/base/stl_util.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 == CPDF_PageObject::TEXT, |
| "FPDF_PAGEOBJ_TEXT/CPDF_PageObject::TEXT mismatch"); |
| static_assert(FPDF_PAGEOBJ_PATH == CPDF_PageObject::PATH, |
| "FPDF_PAGEOBJ_PATH/CPDF_PageObject::PATH mismatch"); |
| static_assert(FPDF_PAGEOBJ_IMAGE == CPDF_PageObject::IMAGE, |
| "FPDF_PAGEOBJ_IMAGE/CPDF_PageObject::IMAGE mismatch"); |
| static_assert(FPDF_PAGEOBJ_SHADING == CPDF_PageObject::SHADING, |
| "FPDF_PAGEOBJ_SHADING/CPDF_PageObject::SHADING mismatch"); |
| static_assert(FPDF_PAGEOBJ_FORM == CPDF_PageObject::FORM, |
| "FPDF_PAGEOBJ_FORM/CPDF_PageObject::FORM mismatch"); |
| |
| bool IsPageObject(CPDF_Page* pPage) { |
| if (!pPage) |
| return false; |
| |
| const CPDF_Dictionary* pFormDict = pPage->GetDict(); |
| if (!pFormDict || !pFormDict->KeyExist("Type")) |
| return false; |
| |
| const CPDF_Object* pObject = pFormDict->GetObjectFor("Type")->GetDirect(); |
| return pObject && !pObject->GetString().Compare("Page"); |
| } |
| |
| void CalcBoundingBox(CPDF_PageObject* pPageObj) { |
| switch (pPageObj->GetType()) { |
| case CPDF_PageObject::TEXT: { |
| break; |
| } |
| case CPDF_PageObject::PATH: { |
| CPDF_PathObject* pPathObj = pPageObj->AsPath(); |
| pPathObj->CalcBoundingBox(); |
| break; |
| } |
| case CPDF_PageObject::IMAGE: { |
| CPDF_ImageObject* pImageObj = pPageObj->AsImage(); |
| pImageObj->CalcBoundingBox(); |
| break; |
| } |
| case CPDF_PageObject::SHADING: { |
| CPDF_ShadingObject* pShadingObj = pPageObj->AsShading(); |
| pShadingObj->CalcBoundingBox(); |
| break; |
| } |
| case CPDF_PageObject::FORM: { |
| CPDF_FormObject* pFormObj = pPageObj->AsForm(); |
| pFormObj->CalcBoundingBox(); |
| break; |
| } |
| default: { |
| NOTREACHED(); |
| break; |
| } |
| } |
| } |
| |
| CPDF_Dictionary* GetMarkParamDict(FPDF_PAGEOBJECTMARK mark) { |
| CPDF_ContentMarkItem* pMarkItem = |
| CPDFContentMarkItemFromFPDFPageObjectMark(mark); |
| return pMarkItem ? pMarkItem->GetParam() : nullptr; |
| } |
| |
| 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; |
| |
| CPDF_Dictionary* pParams = pMarkItem->GetParam(); |
| |
| // If the Params dict does not exist, create a new one. |
| if (!pParams) { |
| auto new_dict = |
| pdfium::MakeUnique<CPDF_Dictionary>(pDoc->GetByteStringPool()); |
| pParams = new_dict.get(); |
| pMarkItem->SetDirectDict(std::move(new_dict)); |
| } |
| |
| return pParams; |
| } |
| |
| bool PageObjectContainsMark(CPDF_PageObject* pPageObj, |
| FPDF_PAGEOBJECTMARK mark) { |
| const CPDF_ContentMarkItem* pMarkItem = |
| CPDFContentMarkItemFromFPDFPageObjectMark(mark); |
| return pMarkItem && pPageObj->m_ContentMark.ContainsItem(pMarkItem); |
| } |
| |
| unsigned int GetUnsignedAlpha(float alpha) { |
| return static_cast<unsigned int>(alpha * 255.f + 0.5f); |
| } |
| |
| const CPDF_PageObjectList* CPDFPageObjListFromFPDFFormObject( |
| FPDF_PAGEOBJECT page_object) { |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| if (!pPageObj) |
| return nullptr; |
| |
| CPDF_FormObject* pFormObject = pPageObj->AsForm(); |
| if (!pFormObject) |
| return nullptr; |
| |
| const CPDF_Form* pForm = pFormObject->form(); |
| if (!pForm) |
| return nullptr; |
| |
| return pForm->GetPageObjectList(); |
| } |
| |
| } // namespace |
| |
| FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV FPDF_CreateNewDocument() { |
| auto pDoc = pdfium::MakeUnique<CPDF_Document>(); |
| pDoc->CreateNewDoc(); |
| |
| time_t currentTime; |
| ByteString DateStr; |
| if (FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) { |
| if (FXSYS_time(¤tTime) != -1) { |
| tm* pTM = 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); |
| } |
| } |
| } |
| |
| CPDF_Dictionary* pInfoDict = pDoc->GetInfo(); |
| if (pInfoDict) { |
| if (FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) |
| pInfoDict->SetNewFor<CPDF_String>("CreationDate", DateStr, false); |
| pInfoDict->SetNewFor<CPDF_String>("Creator", L"PDFium"); |
| } |
| |
| #ifdef PDF_ENABLE_XFA |
| pDoc->SetExtension(pdfium::MakeUnique<CPDFXFA_Context>(pDoc.get())); |
| #endif // PDF_ENABLE_XFA |
| |
| // 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()); |
| 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 |
| auto* pContext = static_cast<CPDFXFA_Context*>(pDoc->GetExtension()); |
| if (pContext) { |
| auto pXFAPage = pdfium::MakeRetain<CPDFXFA_Page>(pContext, page_index); |
| pXFAPage->LoadPDFPage(pPageDict); |
| return FPDFPageFromIPDFPage(pXFAPage.Leak()); // Caller takes ownership. |
| } |
| #endif // PDF_ENABLE_XFA |
| |
| auto pPage = pdfium::MakeRetain<CPDF_Page>(pDoc, pPageDict, true); |
| 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; |
| |
| return pPage->RemovePageObject(pPageObj); |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPage_CountObjects(FPDF_PAGE page) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!IsPageObject(pPage)) |
| return -1; |
| |
| return 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) { |
| if (!page_object) |
| return -1; |
| |
| const auto& mark = |
| CPDFPageObjectFromFPDFPageObject(page_object)->m_ContentMark; |
| return mark.CountItems(); |
| } |
| |
| FPDF_EXPORT FPDF_PAGEOBJECTMARK FPDF_CALLCONV |
| FPDFPageObj_GetMark(FPDF_PAGEOBJECT page_object, unsigned long index) { |
| if (!page_object) |
| return nullptr; |
| |
| auto* mark = &CPDFPageObjectFromFPDFPageObject(page_object)->m_ContentMark; |
| if (index >= mark->CountItems()) |
| return nullptr; |
| |
| return FPDFPageObjectMarkFromCPDFContentMarkItem(mark->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; |
| |
| auto* mark = &pPageObj->m_ContentMark; |
| mark->AddMark(name); |
| unsigned long index = mark->CountItems() - 1; |
| |
| pPageObj->SetDirty(true); |
| |
| return FPDFPageObjectMarkFromCPDFContentMarkItem(mark->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; |
| |
| bool result = pPageObj->m_ContentMark.RemoveMark(pMarkItem); |
| if (result) |
| pPageObj->SetDirty(true); |
| |
| return result; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetName(FPDF_PAGEOBJECTMARK mark, |
| void* buffer, |
| unsigned long buflen, |
| unsigned long* out_buflen) { |
| if (!mark || !out_buflen) |
| return false; |
| |
| const CPDF_ContentMarkItem* pMarkItem = |
| CPDFContentMarkItemFromFPDFPageObjectMark(mark); |
| |
| *out_buflen = Utf16EncodeMaybeCopyAndReturnLength( |
| WideString::FromUTF8(pMarkItem->GetName().AsStringView()), buffer, |
| buflen); |
| return true; |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFPageObjMark_CountParams(FPDF_PAGEOBJECTMARK mark) { |
| if (!mark) |
| return -1; |
| |
| const CPDF_ContentMarkItem* pMarkItem = |
| CPDFContentMarkItemFromFPDFPageObjectMark(mark); |
| |
| const CPDF_Dictionary* pParams = pMarkItem->GetParam(); |
| return pParams ? pParams->GetCount() : 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; |
| |
| const CPDF_Dictionary* pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return false; |
| |
| for (auto& it : *pParams) { |
| 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) { |
| const CPDF_Dictionary* pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return FPDF_OBJECT_UNKNOWN; |
| |
| 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; |
| |
| const CPDF_Dictionary* pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return false; |
| |
| 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; |
| |
| const CPDF_Dictionary* pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return false; |
| |
| 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; |
| |
| const CPDF_Dictionary* pParams = GetMarkParamDict(mark); |
| if (!pParams) |
| return false; |
| |
| const CPDF_Object* pObj = pParams->GetObjectFor(key); |
| if (!pObj || !pObj->IsString()) |
| return false; |
| |
| ByteString result = pObj->GetString(); |
| unsigned long len = 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 pageObject) { |
| if (!pageObject) |
| return false; |
| |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(pageObject); |
| int blend_type = pPageObj->m_GeneralState.GetBlendType(); |
| if (blend_type != FXDIB_BLEND_NORMAL) |
| return true; |
| |
| const CPDF_Dictionary* pSMaskDict = |
| ToDictionary(pPageObj->m_GeneralState.GetSoftMask()); |
| if (pSMaskDict) |
| 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()) { |
| const CPDF_Form* pForm = pPageObj->AsForm()->form(); |
| if (pForm) { |
| const CPDF_Transparency& trans = pForm->GetTransparency(); |
| if (trans.IsGroup() || trans.IsIsolated()) |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| 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; |
| |
| 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; |
| |
| 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; |
| |
| 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; |
| |
| 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 pageObject) { |
| if (!pageObject) |
| return FPDF_PAGEOBJ_UNKNOWN; |
| |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(pageObject); |
| return pPageObj->GetType(); |
| } |
| |
| 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 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()); |
| |
| CPDF_Dictionary* pAnnotDict = pAnnot->GetAnnotDict(); |
| CPDF_Array* pRectArray = pAnnotDict->GetArrayFor("Rect"); |
| if (pRectArray) |
| pRectArray->Clear(); |
| else |
| pRectArray = pAnnotDict->SetNewFor<CPDF_Array>("Rect"); |
| |
| pRectArray->AddNew<CPDF_Number>(rect.left); |
| pRectArray->AddNew<CPDF_Number>(rect.bottom); |
| pRectArray->AddNew<CPDF_Number>(rect.right); |
| pRectArray->AddNew<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->GetDict()->SetNewFor<CPDF_Number>(pdfium::page_object::kRotate, |
| rotate * 90); |
| } |
| |
| FPDF_BOOL FPDFPageObj_SetFillColor(FPDF_PAGEOBJECT page_object, |
| unsigned int R, |
| unsigned int G, |
| unsigned int B, |
| unsigned int A) { |
| if (!page_object || R > 255 || G > 255 || B > 255 || A > 255) |
| return false; |
| |
| std::vector<float> rgb = {R / 255.f, G / 255.f, B / 255.f}; |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| pPageObj->m_GeneralState.SetFillAlpha(A / 255.f); |
| pPageObj->m_ColorState.SetFillColor( |
| CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB), 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; |
| |
| FX_COLORREF fillColor = pPageObj->m_ColorState.GetFillColorRef(); |
| *R = FXSYS_GetRValue(fillColor); |
| *G = FXSYS_GetGValue(fillColor); |
| *B = FXSYS_GetBValue(fillColor); |
| *A = GetUnsignedAlpha(pPageObj->m_GeneralState.GetFillAlpha()); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetBounds(FPDF_PAGEOBJECT pageObject, |
| float* left, |
| float* bottom, |
| float* right, |
| float* top) { |
| if (!pageObject) |
| return false; |
| |
| CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(pageObject); |
| 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_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(PDFCS_DEVICERGB), 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; |
| |
| FX_COLORREF strokeColor = pPageObj->m_ColorState.GetStrokeColorRef(); |
| *R = FXSYS_GetRValue(strokeColor); |
| *G = FXSYS_GetGValue(strokeColor); |
| *B = FXSYS_GetBValue(strokeColor); |
| *A = 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 FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetLineJoin(FPDF_PAGEOBJECT page_object, int line_join) { |
| if (!page_object) |
| return false; |
| if (line_join < |
| static_cast<int>(CFX_GraphStateData::LineJoin::LineJoinMiter) || |
| line_join > |
| static_cast<int>(CFX_GraphStateData::LineJoin::LineJoinBevel)) { |
| return false; |
| } |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| CFX_GraphStateData::LineJoin lineJoin = |
| static_cast<CFX_GraphStateData::LineJoin>(line_join); |
| pPageObj->m_GraphState.SetLineJoin(lineJoin); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetLineCap(FPDF_PAGEOBJECT page_object, int line_cap) { |
| if (!page_object) |
| return false; |
| if (line_cap < static_cast<int>(CFX_GraphStateData::LineCap::LineCapButt) || |
| line_cap > static_cast<int>(CFX_GraphStateData::LineCap::LineCapSquare)) { |
| return false; |
| } |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object); |
| CFX_GraphStateData::LineCap lineCap = |
| static_cast<CFX_GraphStateData::LineCap>(line_cap); |
| pPageObj->m_GraphState.SetLineCap(lineCap); |
| pPageObj->SetDirty(true); |
| return true; |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFFormObj_CountObjects(FPDF_PAGEOBJECT page_object) { |
| const CPDF_PageObjectList* pObjectList = |
| CPDFPageObjListFromFPDFFormObject(page_object); |
| if (!pObjectList) |
| return -1; |
| |
| return pObjectList->size(); |
| } |
| |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV |
| FPDFFormObj_GetObject(FPDF_PAGEOBJECT form_object, unsigned long index) { |
| const CPDF_PageObjectList* pObjectList = |
| CPDFPageObjListFromFPDFFormObject(form_object); |
| if (!pObjectList) |
| return nullptr; |
| |
| return FPDFPageObjectFromCPDFPageObject( |
| pObjectList->GetPageObjectByIndex(index)); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFFormObj_GetMatrix(FPDF_PAGEOBJECT form_object, |
| double* a, |
| double* b, |
| double* c, |
| double* d, |
| double* e, |
| double* f) { |
| if (!form_object || !a || !b || !c || !d || !e || !f) |
| return false; |
| |
| auto* pPageObj = CPDFPageObjectFromFPDFPageObject(form_object); |
| CPDF_FormObject* pFormObj = pPageObj->AsForm(); |
| if (!pFormObj) |
| return false; |
| |
| const CFX_Matrix& matrix = pFormObj->form_matrix(); |
| *a = matrix.a; |
| *b = matrix.b; |
| *c = matrix.c; |
| *d = matrix.d; |
| *e = matrix.e; |
| *f = matrix.f; |
| |
| return true; |
| } |