diff options
Diffstat (limited to 'fpdfsdk/src/fpdfview.cpp')
| -rw-r--r-- | fpdfsdk/src/fpdfview.cpp | 1145 |
1 files changed, 0 insertions, 1145 deletions
diff --git a/fpdfsdk/src/fpdfview.cpp b/fpdfsdk/src/fpdfview.cpp deleted file mode 100644 index 1f6d11d3fe..0000000000 --- a/fpdfsdk/src/fpdfview.cpp +++ /dev/null @@ -1,1145 +0,0 @@ -// 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/fpdfview.h" - -#include <memory> - -#include "core/include/fpdfapi/cpdf_array.h" -#include "core/include/fpdfapi/cpdf_document.h" -#include "core/include/fxcodec/fx_codec.h" -#include "core/include/fxcrt/fx_safe_types.h" -#include "fpdfsdk/include/fsdk_define.h" -#include "fpdfsdk/include/fsdk_mgr.h" -#include "fpdfsdk/include/fsdk_rendercontext.h" -#include "fpdfsdk/include/javascript/IJavaScript.h" -#include "public/fpdf_ext.h" -#include "public/fpdf_progressive.h" -#include "third_party/base/numerics/safe_conversions_impl.h" - -#ifdef PDF_ENABLE_XFA -#include "core/include/fpdfapi/fpdf_module.h" -#include "fpdfsdk/include/fpdfxfa/fpdfxfa_app.h" -#include "fpdfsdk/include/fpdfxfa/fpdfxfa_doc.h" -#include "fpdfsdk/include/fpdfxfa/fpdfxfa_page.h" -#include "fpdfsdk/include/fpdfxfa/fpdfxfa_util.h" -#include "public/fpdf_formfill.h" -#endif // PDF_ENABLE_XFA - -UnderlyingDocumentType* UnderlyingFromFPDFDocument(FPDF_DOCUMENT doc) { - return static_cast<UnderlyingDocumentType*>(doc); -} - -FPDF_DOCUMENT FPDFDocumentFromUnderlying(UnderlyingDocumentType* doc) { - return static_cast<FPDF_DOCUMENT>(doc); -} - -UnderlyingPageType* UnderlyingFromFPDFPage(FPDF_PAGE page) { - return static_cast<UnderlyingPageType*>(page); -} - -CPDF_Document* CPDFDocumentFromFPDFDocument(FPDF_DOCUMENT doc) { -#ifdef PDF_ENABLE_XFA - return doc ? UnderlyingFromFPDFDocument(doc)->GetPDFDoc() : nullptr; -#else // PDF_ENABLE_XFA - return UnderlyingFromFPDFDocument(doc); -#endif // PDF_ENABLE_XFA -} - -FPDF_DOCUMENT FPDFDocumentFromCPDFDocument(CPDF_Document* doc) { -#ifdef PDF_ENABLE_XFA - return doc ? FPDFDocumentFromUnderlying( - new CPDFXFA_Document(doc, CPDFXFA_App::GetInstance())) - : nullptr; -#else // PDF_ENABLE_XFA - return FPDFDocumentFromUnderlying(doc); -#endif // PDF_ENABLE_XFA -} - -CPDF_Page* CPDFPageFromFPDFPage(FPDF_PAGE page) { -#ifdef PDF_ENABLE_XFA - return page ? UnderlyingFromFPDFPage(page)->GetPDFPage() : nullptr; -#else // PDF_ENABLE_XFA - return UnderlyingFromFPDFPage(page); -#endif // PDF_ENABLE_XFA -} - -#ifdef PDF_ENABLE_XFA -CFPDF_FileStream::CFPDF_FileStream(FPDF_FILEHANDLER* pFS) { - m_pFS = pFS; - m_nCurPos = 0; -} - -IFX_FileStream* CFPDF_FileStream::Retain() { - return this; -} - -void CFPDF_FileStream::Release() { - if (m_pFS && m_pFS->Release) - m_pFS->Release(m_pFS->clientData); - delete this; -} - -FX_FILESIZE CFPDF_FileStream::GetSize() { - if (m_pFS && m_pFS->GetSize) - return (FX_FILESIZE)m_pFS->GetSize(m_pFS->clientData); - return 0; -} - -FX_BOOL CFPDF_FileStream::IsEOF() { - return m_nCurPos >= GetSize(); -} - -FX_BOOL CFPDF_FileStream::ReadBlock(void* buffer, - FX_FILESIZE offset, - size_t size) { - if (!buffer || !size || !m_pFS->ReadBlock) - return FALSE; - - if (m_pFS->ReadBlock(m_pFS->clientData, (FPDF_DWORD)offset, buffer, - (FPDF_DWORD)size) == 0) { - m_nCurPos = offset + size; - return TRUE; - } - return FALSE; -} - -size_t CFPDF_FileStream::ReadBlock(void* buffer, size_t size) { - if (!buffer || !size || !m_pFS->ReadBlock) - return 0; - - FX_FILESIZE nSize = GetSize(); - if (m_nCurPos >= nSize) - return 0; - FX_FILESIZE dwAvail = nSize - m_nCurPos; - if (dwAvail < (FX_FILESIZE)size) - size = (size_t)dwAvail; - if (m_pFS->ReadBlock(m_pFS->clientData, (FPDF_DWORD)m_nCurPos, buffer, - (FPDF_DWORD)size) == 0) { - m_nCurPos += size; - return size; - } - - return 0; -} - -FX_BOOL CFPDF_FileStream::WriteBlock(const void* buffer, - FX_FILESIZE offset, - size_t size) { - if (!m_pFS || !m_pFS->WriteBlock) - return FALSE; - - if (m_pFS->WriteBlock(m_pFS->clientData, (FPDF_DWORD)offset, buffer, - (FPDF_DWORD)size) == 0) { - m_nCurPos = offset + size; - return TRUE; - } - return FALSE; -} - -FX_BOOL CFPDF_FileStream::Flush() { - if (!m_pFS || !m_pFS->Flush) - return TRUE; - - return m_pFS->Flush(m_pFS->clientData) == 0; -} -#endif // PDF_ENABLE_XFA - -CPDF_CustomAccess::CPDF_CustomAccess(FPDF_FILEACCESS* pFileAccess) { - m_FileAccess = *pFileAccess; -#ifdef PDF_ENABLE_XFA - m_BufferOffset = (FX_DWORD)-1; -#endif // PDF_ENABLE_XFA -} - -#ifdef PDF_ENABLE_XFA -FX_BOOL CPDF_CustomAccess::GetByte(FX_DWORD pos, uint8_t& ch) { - if (pos >= m_FileAccess.m_FileLen) - return FALSE; - if (m_BufferOffset == (FX_DWORD)-1 || pos < m_BufferOffset || - pos >= m_BufferOffset + 512) { - // Need to read from file access - m_BufferOffset = pos; - int size = 512; - if (pos + 512 > m_FileAccess.m_FileLen) - size = m_FileAccess.m_FileLen - pos; - if (!m_FileAccess.m_GetBlock(m_FileAccess.m_Param, m_BufferOffset, m_Buffer, - size)) - return FALSE; - } - ch = m_Buffer[pos - m_BufferOffset]; - return TRUE; -} - -FX_BOOL CPDF_CustomAccess::GetBlock(FX_DWORD pos, - uint8_t* pBuf, - FX_DWORD size) { - if (pos + size > m_FileAccess.m_FileLen) - return FALSE; - return m_FileAccess.m_GetBlock(m_FileAccess.m_Param, pos, pBuf, size); -} -#endif // PDF_ENABLE_XFA - -FX_BOOL CPDF_CustomAccess::ReadBlock(void* buffer, - FX_FILESIZE offset, - size_t size) { - if (offset < 0) { - return FALSE; - } - FX_SAFE_FILESIZE newPos = - pdfium::base::checked_cast<FX_FILESIZE, size_t>(size); - newPos += offset; - if (!newPos.IsValid() || newPos.ValueOrDie() > m_FileAccess.m_FileLen) { - return FALSE; - } - return m_FileAccess.m_GetBlock(m_FileAccess.m_Param, offset, (uint8_t*)buffer, - size); -} - -// 0 bit: FPDF_POLICY_MACHINETIME_ACCESS -static FX_DWORD foxit_sandbox_policy = 0xFFFFFFFF; - -void FSDK_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable) { - switch (policy) { - case FPDF_POLICY_MACHINETIME_ACCESS: { - if (enable) - foxit_sandbox_policy |= 0x01; - else - foxit_sandbox_policy &= 0xFFFFFFFE; - } break; - default: - break; - } -} - -FPDF_BOOL FSDK_IsSandBoxPolicyEnabled(FPDF_DWORD policy) { - switch (policy) { - case FPDF_POLICY_MACHINETIME_ACCESS: - return !!(foxit_sandbox_policy & 0x01); - default: - return FALSE; - } -} - -CCodec_ModuleMgr* g_pCodecModule = nullptr; - -DLLEXPORT void STDCALL FPDF_InitLibrary() { - FPDF_InitLibraryWithConfig(nullptr); -} - -DLLEXPORT void STDCALL FPDF_InitLibraryWithConfig( - const FPDF_LIBRARY_CONFIG* cfg) { - g_pCodecModule = new CCodec_ModuleMgr(); - - CFX_GEModule::Create(cfg ? cfg->m_pUserFontPaths : nullptr); - CFX_GEModule::Get()->SetCodecModule(g_pCodecModule); - - CPDF_ModuleMgr::Create(); - CPDF_ModuleMgr* pModuleMgr = CPDF_ModuleMgr::Get(); - pModuleMgr->SetCodecModule(g_pCodecModule); - pModuleMgr->InitPageModule(); - pModuleMgr->InitRenderModule(); -#ifdef PDF_ENABLE_XFA - CPDFXFA_App::GetInstance()->Initialize( - (cfg && cfg->version >= 2) - ? reinterpret_cast<FXJSE_HRUNTIME>(cfg->m_pIsolate) - : nullptr); -#else // PDF_ENABLE_XFA - pModuleMgr->LoadEmbeddedGB1CMaps(); - pModuleMgr->LoadEmbeddedJapan1CMaps(); - pModuleMgr->LoadEmbeddedCNS1CMaps(); - pModuleMgr->LoadEmbeddedKorea1CMaps(); -#endif // PDF_ENABLE_XFA - if (cfg && cfg->version >= 2) - IJS_Runtime::Initialize(cfg->m_v8EmbedderSlot, cfg->m_pIsolate); -} - -DLLEXPORT void STDCALL FPDF_DestroyLibrary() { -#ifdef PDF_ENABLE_XFA - CPDFXFA_App::ReleaseInstance(); -#endif // PDF_ENABLE_XFA - CPDF_ModuleMgr::Destroy(); - CFX_GEModule::Destroy(); - - delete g_pCodecModule; - g_pCodecModule = nullptr; -} - -#ifndef _WIN32 -int g_LastError; -void SetLastError(int err) { - g_LastError = err; -} - -int GetLastError() { - return g_LastError; -} -#endif // _WIN32 - -void ProcessParseError(CPDF_Parser::Error err) { - FX_DWORD err_code; - // Translate FPDFAPI error code to FPDFVIEW error code - switch (err) { - case CPDF_Parser::SUCCESS: - err_code = FPDF_ERR_SUCCESS; - break; - case CPDF_Parser::FILE_ERROR: - err_code = FPDF_ERR_FILE; - break; - case CPDF_Parser::FORMAT_ERROR: - err_code = FPDF_ERR_FORMAT; - break; - case CPDF_Parser::PASSWORD_ERROR: - err_code = FPDF_ERR_PASSWORD; - break; - case CPDF_Parser::HANDLER_ERROR: - err_code = FPDF_ERR_SECURITY; - break; - } - SetLastError(err_code); -} - -DLLEXPORT void STDCALL FPDF_SetSandBoxPolicy(FPDF_DWORD policy, - FPDF_BOOL enable) { - return FSDK_SetSandBoxPolicy(policy, enable); -} - -DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadDocument(FPDF_STRING file_path, - FPDF_BYTESTRING password) { - // NOTE: the creation of the file needs to be by the embedder on the - // other side of this API. - IFX_FileRead* pFileAccess = FX_CreateFileRead((const FX_CHAR*)file_path); - if (!pFileAccess) { - return nullptr; - } - - CPDF_Parser* pParser = new CPDF_Parser; - pParser->SetPassword(password); - - CPDF_Parser::Error error = pParser->StartParse(pFileAccess); - if (error != CPDF_Parser::SUCCESS) { - delete pParser; - ProcessParseError(error); - return NULL; - } -#ifdef PDF_ENABLE_XFA - CPDF_Document* pPDFDoc = pParser->GetDocument(); - if (!pPDFDoc) - return NULL; - - CPDFXFA_App* pProvider = CPDFXFA_App::GetInstance(); - return new CPDFXFA_Document(pPDFDoc, pProvider); -#else // PDF_ENABLE_XFA - return pParser->GetDocument(); -#endif // PDF_ENABLE_XFA -} - -#ifdef PDF_ENABLE_XFA -DLLEXPORT FPDF_BOOL STDCALL FPDF_HasXFAField(FPDF_DOCUMENT document, - int* docType) { - if (!document) - return FALSE; - - CPDF_Document* pdfDoc = - (static_cast<CPDFXFA_Document*>(document))->GetPDFDoc(); - if (!pdfDoc) - return FALSE; - - CPDF_Dictionary* pRoot = pdfDoc->GetRoot(); - if (!pRoot) - return FALSE; - - CPDF_Dictionary* pAcroForm = pRoot->GetDictBy("AcroForm"); - if (!pAcroForm) - return FALSE; - - CPDF_Object* pXFA = pAcroForm->GetElement("XFA"); - if (!pXFA) - return FALSE; - - FX_BOOL bDynamicXFA = pRoot->GetBooleanBy("NeedsRendering", FALSE); - - if (bDynamicXFA) - *docType = DOCTYPE_DYNAMIC_XFA; - else - *docType = DOCTYPE_STATIC_XFA; - - return TRUE; -} - -DLLEXPORT FPDF_BOOL STDCALL FPDF_LoadXFA(FPDF_DOCUMENT document) { - return document && (static_cast<CPDFXFA_Document*>(document))->LoadXFADoc(); -} -#endif // PDF_ENABLE_XFA - -class CMemFile final : public IFX_FileRead { - public: - CMemFile(uint8_t* pBuf, FX_FILESIZE size) : m_pBuf(pBuf), m_size(size) {} - - void Release() override { delete this; } - FX_FILESIZE GetSize() override { return m_size; } - FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override { - if (offset < 0) { - return FALSE; - } - FX_SAFE_FILESIZE newPos = - pdfium::base::checked_cast<FX_FILESIZE, size_t>(size); - newPos += offset; - if (!newPos.IsValid() || newPos.ValueOrDie() > (FX_DWORD)m_size) { - return FALSE; - } - FXSYS_memcpy(buffer, m_pBuf + offset, size); - return TRUE; - } - - private: - ~CMemFile() override {} - - uint8_t* const m_pBuf; - const FX_FILESIZE m_size; -}; - -DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadMemDocument(const void* data_buf, - int size, - FPDF_BYTESTRING password) { - CPDF_Parser* pParser = new CPDF_Parser; - pParser->SetPassword(password); - CMemFile* pMemFile = new CMemFile((uint8_t*)data_buf, size); - CPDF_Parser::Error error = pParser->StartParse(pMemFile); - if (error != CPDF_Parser::SUCCESS) { - delete pParser; - ProcessParseError(error); - return NULL; - } - CPDF_Document* pDoc = NULL; - pDoc = pParser ? pParser->GetDocument() : NULL; - CheckUnSupportError(pDoc, error); - return FPDFDocumentFromCPDFDocument(pParser->GetDocument()); -} - -DLLEXPORT FPDF_DOCUMENT STDCALL -FPDF_LoadCustomDocument(FPDF_FILEACCESS* pFileAccess, - FPDF_BYTESTRING password) { - CPDF_Parser* pParser = new CPDF_Parser; - pParser->SetPassword(password); - CPDF_CustomAccess* pFile = new CPDF_CustomAccess(pFileAccess); - CPDF_Parser::Error error = pParser->StartParse(pFile); - if (error != CPDF_Parser::SUCCESS) { - delete pParser; - ProcessParseError(error); - return NULL; - } - CPDF_Document* pDoc = NULL; - pDoc = pParser ? pParser->GetDocument() : NULL; - CheckUnSupportError(pDoc, error); - return FPDFDocumentFromCPDFDocument(pParser->GetDocument()); -} - -DLLEXPORT FPDF_BOOL STDCALL FPDF_GetFileVersion(FPDF_DOCUMENT doc, - int* fileVersion) { - if (!fileVersion) - return FALSE; - - *fileVersion = 0; - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(doc); - if (!pDoc) - return FALSE; - - CPDF_Parser* pParser = pDoc->GetParser(); - if (!pParser) - return FALSE; - - *fileVersion = pParser->GetFileVersion(); - return TRUE; -} - -// jabdelmalek: changed return type from FX_DWORD to build on Linux (and match -// header). -DLLEXPORT unsigned long STDCALL FPDF_GetDocPermissions(FPDF_DOCUMENT document) { - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); - if (!pDoc) -#ifndef PDF_ENABLE_XFA - return 0; -#else // PDF_ENABLE_XFA - return (FX_DWORD)-1; -#endif // PDF_ENABLE_XFA - - CPDF_Dictionary* pDict = pDoc->GetParser()->GetEncryptDict(); - return pDict ? pDict->GetIntegerBy("P") : (FX_DWORD)-1; -} - -DLLEXPORT int STDCALL FPDF_GetSecurityHandlerRevision(FPDF_DOCUMENT document) { - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); - if (!pDoc) - return -1; - - CPDF_Dictionary* pDict = pDoc->GetParser()->GetEncryptDict(); - return pDict ? pDict->GetIntegerBy("R") : -1; -} - -DLLEXPORT int STDCALL FPDF_GetPageCount(FPDF_DOCUMENT document) { - UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document); - return pDoc ? pDoc->GetPageCount() : 0; -} - -DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document, - int page_index) { - UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document); - if (!pDoc) - return nullptr; - - if (page_index < 0 || page_index >= pDoc->GetPageCount()) - return nullptr; - -#ifdef PDF_ENABLE_XFA - return pDoc->GetPage(page_index); -#else // PDF_ENABLE_XFA - CPDF_Dictionary* pDict = pDoc->GetPage(page_index); - if (!pDict) - return NULL; - CPDF_Page* pPage = new CPDF_Page; - pPage->Load(pDoc, pDict); - pPage->ParseContent(nullptr); - return pPage; -#endif // PDF_ENABLE_XFA -} - -DLLEXPORT double STDCALL FPDF_GetPageWidth(FPDF_PAGE page) { - UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page); - return pPage ? pPage->GetPageWidth() : 0.0; -} - -DLLEXPORT double STDCALL FPDF_GetPageHeight(FPDF_PAGE page) { - UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page); - return pPage ? pPage->GetPageHeight() : 0.0; -} - -void DropContext(void* data) { - delete (CRenderContext*)data; -} - -#if defined(_WIN32) -DLLEXPORT void STDCALL FPDF_RenderPage(HDC dc, - FPDF_PAGE page, - int start_x, - int start_y, - int size_x, - int size_y, - int rotate, - int flags) { - CPDF_Page* pPage = CPDFPageFromFPDFPage(page); - if (!pPage) - return; - - CRenderContext* pContext = new CRenderContext; - pPage->SetPrivateData((void*)1, pContext, DropContext); - -#if !defined(_WIN32_WCE) - CFX_DIBitmap* pBitmap = nullptr; - FX_BOOL bBackgroundAlphaNeeded = pPage->BackgroundAlphaNeeded(); - FX_BOOL bHasImageMask = pPage->HasImageMask(); - if (bBackgroundAlphaNeeded || bHasImageMask) { - pBitmap = new CFX_DIBitmap; - pBitmap->Create(size_x, size_y, FXDIB_Argb); - pBitmap->Clear(0x00ffffff); -#ifdef _SKIA_SUPPORT_ - pContext->m_pDevice = new CFX_SkiaDevice; - ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap); -#else - pContext->m_pDevice = new CFX_FxgeDevice; - ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap); -#endif - } else { - pContext->m_pDevice = new CFX_WindowsDevice(dc); - } - - FPDF_RenderPage_Retail(pContext, page, start_x, start_y, size_x, size_y, - rotate, flags, TRUE, NULL); - - if (bBackgroundAlphaNeeded || bHasImageMask) { - if (pBitmap) { - CFX_WindowsDevice WinDC(dc); - - if (WinDC.GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER) { - CFX_DIBitmap* pDst = new CFX_DIBitmap; - int pitch = pBitmap->GetPitch(); - pDst->Create(size_x, size_y, FXDIB_Rgb32); - FXSYS_memset(pDst->GetBuffer(), -1, pitch * size_y); - pDst->CompositeBitmap(0, 0, size_x, size_y, pBitmap, 0, 0, - FXDIB_BLEND_NORMAL, NULL, FALSE, NULL); - WinDC.StretchDIBits(pDst, 0, 0, size_x, size_y); - delete pDst; - } else { - WinDC.SetDIBits(pBitmap, 0, 0); - } - } - } -#else - // get clip region - RECT rect, cliprect; - rect.left = start_x; - rect.top = start_y; - rect.right = start_x + size_x; - rect.bottom = start_y + size_y; - GetClipBox(dc, &cliprect); - IntersectRect(&rect, &rect, &cliprect); - int width = rect.right - rect.left; - int height = rect.bottom - rect.top; - - // Create a DIB section - LPVOID pBuffer; - BITMAPINFOHEADER bmih; - FXSYS_memset(&bmih, 0, sizeof bmih); - bmih.biSize = sizeof bmih; - bmih.biBitCount = 24; - bmih.biHeight = -height; - bmih.biPlanes = 1; - bmih.biWidth = width; - pContext->m_hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, - &pBuffer, NULL, 0); - FXSYS_memset(pBuffer, 0xff, height * ((width * 3 + 3) / 4 * 4)); - - // Create a device with this external buffer - pContext->m_pBitmap = new CFX_DIBitmap; - pContext->m_pBitmap->Create(width, height, FXDIB_Rgb, (uint8_t*)pBuffer); - pContext->m_pDevice = new CPDF_FxgeDevice; - ((CPDF_FxgeDevice*)pContext->m_pDevice)->Attach(pContext->m_pBitmap); - - // output to bitmap device - FPDF_RenderPage_Retail(pContext, page, start_x - rect.left, - start_y - rect.top, size_x, size_y, rotate, flags); - - // Now output to real device - HDC hMemDC = CreateCompatibleDC(dc); - HGDIOBJ hOldBitmap = SelectObject(hMemDC, pContext->m_hBitmap); - - BitBlt(dc, rect.left, rect.top, width, height, hMemDC, 0, 0, SRCCOPY); - SelectObject(hMemDC, hOldBitmap); - DeleteDC(hMemDC); - -#endif // !defined(_WIN32_WCE) - if (bBackgroundAlphaNeeded || bHasImageMask) - delete pBitmap; - - delete pContext; - pPage->RemovePrivateData((void*)1); -} -#endif // defined(_WIN32) - -DLLEXPORT void STDCALL FPDF_RenderPageBitmap(FPDF_BITMAP bitmap, - FPDF_PAGE page, - int start_x, - int start_y, - int size_x, - int size_y, - int rotate, - int flags) { - if (!bitmap) - return; - CPDF_Page* pPage = CPDFPageFromFPDFPage(page); - if (!pPage) - return; - CRenderContext* pContext = new CRenderContext; - pPage->SetPrivateData((void*)1, pContext, DropContext); -#ifdef _SKIA_SUPPORT_ - pContext->m_pDevice = new CFX_SkiaDevice; - - if (flags & FPDF_REVERSE_BYTE_ORDER) - ((CFX_SkiaDevice*)pContext->m_pDevice) - ->Attach((CFX_DIBitmap*)bitmap, 0, TRUE); - else - ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap); -#else - pContext->m_pDevice = new CFX_FxgeDevice; - - if (flags & FPDF_REVERSE_BYTE_ORDER) - ((CFX_FxgeDevice*)pContext->m_pDevice) - ->Attach((CFX_DIBitmap*)bitmap, 0, TRUE); - else - ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap); -#endif - - FPDF_RenderPage_Retail(pContext, page, start_x, start_y, size_x, size_y, - rotate, flags, TRUE, NULL); - - delete pContext; - pPage->RemovePrivateData((void*)1); -} - -DLLEXPORT void STDCALL FPDF_ClosePage(FPDF_PAGE page) { - if (!page) - return; -#ifdef PDF_ENABLE_XFA - CPDFXFA_Page* pPage = (CPDFXFA_Page*)page; - pPage->Release(); -#else // PDF_ENABLE_XFA - CPDFSDK_PageView* pPageView = - (CPDFSDK_PageView*)(((CPDF_Page*)page))->GetPrivateData((void*)page); - if (pPageView && pPageView->IsLocked()) { - pPageView->TakeOverPage(); - return; - } - delete (CPDF_Page*)page; -#endif // PDF_ENABLE_XFA -} - -DLLEXPORT void STDCALL FPDF_CloseDocument(FPDF_DOCUMENT document) { -#ifdef PDF_ENABLE_XFA - delete UnderlyingFromFPDFDocument(document); -#else // PDF_ENABLE_XFA - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); - if (!pDoc) - return; - CPDF_Parser* pParser = pDoc->GetParser(); - if (!pParser) { - delete pDoc; - return; - } - delete pParser; -#endif // PDF_ENABLE_XFA -} - -DLLEXPORT unsigned long STDCALL FPDF_GetLastError() { - return GetLastError(); -} - -DLLEXPORT void STDCALL FPDF_DeviceToPage(FPDF_PAGE page, - int start_x, - int start_y, - int size_x, - int size_y, - int rotate, - int device_x, - int device_y, - double* page_x, - double* page_y) { - if (!page || !page_x || !page_y) - return; - UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page); -#ifdef PDF_ENABLE_XFA - pPage->DeviceToPage(start_x, start_y, size_x, size_y, rotate, device_x, - device_y, page_x, page_y); -#else // PDF_ENABLE_XFA - CFX_Matrix page2device; - pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, - rotate); - CFX_Matrix device2page; - device2page.SetReverse(page2device); - FX_FLOAT page_x_f, page_y_f; - device2page.Transform((FX_FLOAT)(device_x), (FX_FLOAT)(device_y), page_x_f, - page_y_f); - *page_x = (page_x_f); - *page_y = (page_y_f); -#endif // PDF_ENABLE_XFA -} - -DLLEXPORT void STDCALL FPDF_PageToDevice(FPDF_PAGE page, - int start_x, - int start_y, - int size_x, - int size_y, - int rotate, - double page_x, - double page_y, - int* device_x, - int* device_y) { - if (!device_x || !device_y) - return; - UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page); - if (!pPage) - return; -#ifdef PDF_ENABLE_XFA - pPage->PageToDevice(start_x, start_y, size_x, size_y, rotate, page_x, page_y, - device_x, device_y); -#else // PDF_ENABLE_XFA - CFX_Matrix page2device; - pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, - rotate); - FX_FLOAT device_x_f, device_y_f; - page2device.Transform(((FX_FLOAT)page_x), ((FX_FLOAT)page_y), device_x_f, - device_y_f); - *device_x = FXSYS_round(device_x_f); - *device_y = FXSYS_round(device_y_f); -#endif // PDF_ENABLE_XFA -} - -DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_Create(int width, - int height, - int alpha) { - std::unique_ptr<CFX_DIBitmap> pBitmap(new CFX_DIBitmap); - if (!pBitmap->Create(width, height, alpha ? FXDIB_Argb : FXDIB_Rgb32)) { - return NULL; - } - return pBitmap.release(); -} - -DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_CreateEx(int width, - int height, - int format, - void* first_scan, - int stride) { - FXDIB_Format fx_format; - switch (format) { - case FPDFBitmap_Gray: - fx_format = FXDIB_8bppRgb; - break; - case FPDFBitmap_BGR: - fx_format = FXDIB_Rgb; - break; - case FPDFBitmap_BGRx: - fx_format = FXDIB_Rgb32; - break; - case FPDFBitmap_BGRA: - fx_format = FXDIB_Argb; - break; - default: - return NULL; - } - CFX_DIBitmap* pBitmap = new CFX_DIBitmap; - pBitmap->Create(width, height, fx_format, (uint8_t*)first_scan, stride); - return pBitmap; -} - -DLLEXPORT void STDCALL FPDFBitmap_FillRect(FPDF_BITMAP bitmap, - int left, - int top, - int width, - int height, - FPDF_DWORD color) { - if (!bitmap) - return; -#ifdef _SKIA_SUPPORT_ - CFX_SkiaDevice device; -#else - CFX_FxgeDevice device; -#endif - device.Attach((CFX_DIBitmap*)bitmap); - if (!((CFX_DIBitmap*)bitmap)->HasAlpha()) - color |= 0xFF000000; - FX_RECT rect(left, top, left + width, top + height); - device.FillRect(&rect, color); -} - -DLLEXPORT void* STDCALL FPDFBitmap_GetBuffer(FPDF_BITMAP bitmap) { - return bitmap ? ((CFX_DIBitmap*)bitmap)->GetBuffer() : nullptr; -} - -DLLEXPORT int STDCALL FPDFBitmap_GetWidth(FPDF_BITMAP bitmap) { - return bitmap ? ((CFX_DIBitmap*)bitmap)->GetWidth() : 0; -} - -DLLEXPORT int STDCALL FPDFBitmap_GetHeight(FPDF_BITMAP bitmap) { - return bitmap ? ((CFX_DIBitmap*)bitmap)->GetHeight() : 0; -} - -DLLEXPORT int STDCALL FPDFBitmap_GetStride(FPDF_BITMAP bitmap) { - return bitmap ? ((CFX_DIBitmap*)bitmap)->GetPitch() : 0; -} - -DLLEXPORT void STDCALL FPDFBitmap_Destroy(FPDF_BITMAP bitmap) { - delete (CFX_DIBitmap*)bitmap; -} - -void FPDF_RenderPage_Retail(CRenderContext* pContext, - FPDF_PAGE page, - int start_x, - int start_y, - int size_x, - int size_y, - int rotate, - int flags, - FX_BOOL bNeedToRestore, - IFSDK_PAUSE_Adapter* pause) { - CPDF_Page* pPage = CPDFPageFromFPDFPage(page); - if (!pPage) - return; - - if (!pContext->m_pOptions) - pContext->m_pOptions = new CPDF_RenderOptions; - - if (flags & FPDF_LCD_TEXT) - pContext->m_pOptions->m_Flags |= RENDER_CLEARTYPE; - else - pContext->m_pOptions->m_Flags &= ~RENDER_CLEARTYPE; - if (flags & FPDF_NO_NATIVETEXT) - pContext->m_pOptions->m_Flags |= RENDER_NO_NATIVETEXT; - if (flags & FPDF_RENDER_LIMITEDIMAGECACHE) - pContext->m_pOptions->m_Flags |= RENDER_LIMITEDIMAGECACHE; - if (flags & FPDF_RENDER_FORCEHALFTONE) - pContext->m_pOptions->m_Flags |= RENDER_FORCE_HALFTONE; -#ifndef PDF_ENABLE_XFA - if (flags & FPDF_RENDER_NO_SMOOTHTEXT) - pContext->m_pOptions->m_Flags |= RENDER_NOTEXTSMOOTH; - if (flags & FPDF_RENDER_NO_SMOOTHIMAGE) - pContext->m_pOptions->m_Flags |= RENDER_NOIMAGESMOOTH; - if (flags & FPDF_RENDER_NO_SMOOTHPATH) - pContext->m_pOptions->m_Flags |= RENDER_NOPATHSMOOTH; -#endif // PDF_ENABLE_XFA - // Grayscale output - if (flags & FPDF_GRAYSCALE) { - pContext->m_pOptions->m_ColorMode = RENDER_COLOR_GRAY; - pContext->m_pOptions->m_ForeColor = 0; - pContext->m_pOptions->m_BackColor = 0xffffff; - } - const CPDF_OCContext::UsageType usage = - (flags & FPDF_PRINTING) ? CPDF_OCContext::Print : CPDF_OCContext::View; - pContext->m_pOptions->m_AddFlags = flags >> 8; - pContext->m_pOptions->m_pOCContext = - new CPDF_OCContext(pPage->m_pDocument, usage); - - CFX_Matrix matrix; - pPage->GetDisplayMatrix(matrix, start_x, start_y, size_x, size_y, rotate); - - pContext->m_pDevice->SaveState(); - pContext->m_pDevice->SetClip_Rect( - FX_RECT(start_x, start_y, start_x + size_x, start_y + size_y)); - - pContext->m_pContext = new CPDF_RenderContext(pPage); - pContext->m_pContext->AppendLayer(pPage, &matrix); - - if (flags & FPDF_ANNOT) { - pContext->m_pAnnots = new CPDF_AnnotList(pPage); - FX_BOOL bPrinting = pContext->m_pDevice->GetDeviceClass() != FXDC_DISPLAY; - pContext->m_pAnnots->DisplayAnnots(pPage, pContext->m_pContext, bPrinting, - &matrix, TRUE, NULL); - } - - pContext->m_pRenderer = new CPDF_ProgressiveRenderer( - pContext->m_pContext, pContext->m_pDevice, pContext->m_pOptions); - pContext->m_pRenderer->Start(pause); - if (bNeedToRestore) - pContext->m_pDevice->RestoreState(); -} - -DLLEXPORT int STDCALL FPDF_GetPageSizeByIndex(FPDF_DOCUMENT document, - int page_index, - double* width, - double* height) { - UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document); - if (!pDoc) - return FALSE; - -#ifdef PDF_ENABLE_XFA - int count = pDoc->GetPageCount(); - if (page_index < 0 || page_index >= count) - return FALSE; - CPDFXFA_Page* pPage = pDoc->GetPage(page_index); - if (!pPage) - return FALSE; - *width = pPage->GetPageWidth(); - *height = pPage->GetPageHeight(); -#else // PDF_ENABLE_XFA - CPDF_Dictionary* pDict = pDoc->GetPage(page_index); - if (!pDict) - return FALSE; - CPDF_Page page; - page.Load(pDoc, pDict); - *width = page.GetPageWidth(); - *height = page.GetPageHeight(); -#endif // PDF_ENABLE_XFA - - return TRUE; -} - -DLLEXPORT FPDF_BOOL STDCALL -FPDF_VIEWERREF_GetPrintScaling(FPDF_DOCUMENT document) { - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); - if (!pDoc) - return TRUE; - CPDF_ViewerPreferences viewRef(pDoc); - return viewRef.PrintScaling(); -} - -DLLEXPORT int STDCALL FPDF_VIEWERREF_GetNumCopies(FPDF_DOCUMENT document) { - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); - if (!pDoc) - return 1; - CPDF_ViewerPreferences viewRef(pDoc); - return viewRef.NumCopies(); -} - -DLLEXPORT FPDF_PAGERANGE STDCALL -FPDF_VIEWERREF_GetPrintPageRange(FPDF_DOCUMENT document) { - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); - if (!pDoc) - return NULL; - CPDF_ViewerPreferences viewRef(pDoc); - return viewRef.PrintPageRange(); -} - -DLLEXPORT FPDF_DUPLEXTYPE STDCALL -FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT document) { - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); - if (!pDoc) - return DuplexUndefined; - CPDF_ViewerPreferences viewRef(pDoc); - CFX_ByteString duplex = viewRef.Duplex(); - if ("Simplex" == duplex) - return Simplex; - if ("DuplexFlipShortEdge" == duplex) - return DuplexFlipShortEdge; - if ("DuplexFlipLongEdge" == duplex) - return DuplexFlipLongEdge; - return DuplexUndefined; -} - -DLLEXPORT FPDF_DWORD STDCALL FPDF_CountNamedDests(FPDF_DOCUMENT document) { - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); - if (!pDoc) - return 0; - - CPDF_Dictionary* pRoot = pDoc->GetRoot(); - if (!pRoot) - return 0; - - CPDF_NameTree nameTree(pDoc, "Dests"); - pdfium::base::CheckedNumeric<FPDF_DWORD> count = nameTree.GetCount(); - CPDF_Dictionary* pDest = pRoot->GetDictBy("Dests"); - if (pDest) - count += pDest->GetCount(); - - if (!count.IsValid()) - return 0; - - return count.ValueOrDie(); -} - -DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDestByName(FPDF_DOCUMENT document, - FPDF_BYTESTRING name) { - if (!name || name[0] == 0) - return nullptr; - - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); - if (!pDoc) - return nullptr; - - CPDF_NameTree name_tree(pDoc, "Dests"); - return name_tree.LookupNamedDest(pDoc, name); -} - -#ifdef PDF_ENABLE_XFA -FPDF_RESULT FPDF_BStr_Init(FPDF_BSTR* str) { - if (!str) - return -1; - - FXSYS_memset(str, 0, sizeof(FPDF_BSTR)); - return 0; -} - -FPDF_RESULT FPDF_BStr_Set(FPDF_BSTR* str, FPDF_LPCSTR bstr, int length) { - if (!str) - return -1; - if (!bstr || !length) - return -1; - if (length == -1) - length = FXSYS_strlen(bstr); - - if (length == 0) { - if (str->str) { - FX_Free(str->str); - str->str = NULL; - } - str->len = 0; - return 0; - } - - if (str->str && str->len < length) - str->str = FX_Realloc(char, str->str, length + 1); - else if (!str->str) - str->str = FX_Alloc(char, length + 1); - - str->str[length] = 0; - if (str->str == NULL) - return -1; - - FXSYS_memcpy(str->str, bstr, length); - str->len = length; - - return 0; -} - -FPDF_RESULT FPDF_BStr_Clear(FPDF_BSTR* str) { - if (!str) - return -1; - - if (str->str) { - FX_Free(str->str); - str->str = NULL; - } - str->len = 0; - return 0; -} -#endif // PDF_ENABLE_XFA - -DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDest(FPDF_DOCUMENT document, - int index, - void* buffer, - long* buflen) { - if (!buffer) - *buflen = 0; - - if (index < 0) - return nullptr; - - CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document); - if (!pDoc) - return nullptr; - - CPDF_Dictionary* pRoot = pDoc->GetRoot(); - if (!pRoot) - return nullptr; - - CPDF_Object* pDestObj = nullptr; - CFX_ByteString bsName; - CPDF_NameTree nameTree(pDoc, "Dests"); - int count = nameTree.GetCount(); - if (index >= count) { - CPDF_Dictionary* pDest = pRoot->GetDictBy("Dests"); - if (!pDest) - return nullptr; - - pdfium::base::CheckedNumeric<int> checked_count = count; - checked_count += pDest->GetCount(); - if (!checked_count.IsValid() || index >= checked_count.ValueOrDie()) - return nullptr; - - index -= count; - int i = 0; - for (const auto& it : *pDest) { - bsName = it.first; - pDestObj = it.second; - if (!pDestObj) - continue; - if (i == index) - break; - i++; - } - } else { - pDestObj = nameTree.LookupValue(index, bsName); - } - if (!pDestObj) - return nullptr; - if (CPDF_Dictionary* pDict = pDestObj->AsDictionary()) { - pDestObj = pDict->GetArrayBy("D"); - if (!pDestObj) - return nullptr; - } - if (!pDestObj->IsArray()) - return nullptr; - - CFX_WideString wsName = PDF_DecodeText(bsName); - CFX_ByteString utf16Name = wsName.UTF16LE_Encode(); - unsigned int len = utf16Name.GetLength(); - if (!buffer) { - *buflen = len; - } else if (*buflen >= len) { - memcpy(buffer, utf16Name.c_str(), len); - *buflen = len; - } else { - *buflen = -1; - } - return (FPDF_DEST)pDestObj; -} |