diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp')
-rw-r--r-- | core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp | 1819 |
1 files changed, 0 insertions, 1819 deletions
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp deleted file mode 100644 index 1b6e5ac965..0000000000 --- a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp +++ /dev/null @@ -1,1819 +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 "core/src/fpdfapi/fpdf_page/pageint.h" - -#include <vector> - -#include "core/include/fpdfapi/cpdf_array.h" -#include "core/include/fpdfapi/cpdf_dictionary.h" -#include "core/include/fpdfapi/cpdf_document.h" -#include "core/include/fpdfapi/cpdf_name.h" -#include "core/include/fpdfapi/cpdf_number.h" -#include "core/include/fpdfapi/cpdf_reference.h" -#include "core/include/fpdfapi/fpdf_module.h" -#include "core/include/fpdfapi/fpdf_page.h" -#include "core/include/fpdfapi/fpdf_parser_decode.h" -#include "core/include/fpdfapi/fpdf_serial.h" - -namespace { - -const char kPathOperatorSubpath = 'm'; -const char kPathOperatorLine = 'l'; -const char kPathOperatorCubicBezier1 = 'c'; -const char kPathOperatorCubicBezier2 = 'v'; -const char kPathOperatorCubicBezier3 = 'y'; -const char kPathOperatorClosePath = 'h'; -const char kPathOperatorRectangle[] = "re"; - -struct _FX_BSTR { - const FX_CHAR* m_Ptr; - int m_Size; -}; -#define _FX_BSTRC(str) \ - { str, sizeof(str) - 1 } - -struct PDF_AbbrPairs { - _FX_BSTR full_name; - _FX_BSTR abbr; -}; - -const PDF_AbbrPairs PDF_InlineKeyAbbr[] = { - {_FX_BSTRC("BitsPerComponent"), _FX_BSTRC("BPC")}, - {_FX_BSTRC("ColorSpace"), _FX_BSTRC("CS")}, - {_FX_BSTRC("Decode"), _FX_BSTRC("D")}, - {_FX_BSTRC("DecodeParms"), _FX_BSTRC("DP")}, - {_FX_BSTRC("Filter"), _FX_BSTRC("F")}, - {_FX_BSTRC("Height"), _FX_BSTRC("H")}, - {_FX_BSTRC("ImageMask"), _FX_BSTRC("IM")}, - {_FX_BSTRC("Interpolate"), _FX_BSTRC("I")}, - {_FX_BSTRC("Width"), _FX_BSTRC("W")}, -}; - -const PDF_AbbrPairs PDF_InlineValueAbbr[] = { - {_FX_BSTRC("DeviceGray"), _FX_BSTRC("G")}, - {_FX_BSTRC("DeviceRGB"), _FX_BSTRC("RGB")}, - {_FX_BSTRC("DeviceCMYK"), _FX_BSTRC("CMYK")}, - {_FX_BSTRC("Indexed"), _FX_BSTRC("I")}, - {_FX_BSTRC("ASCIIHexDecode"), _FX_BSTRC("AHx")}, - {_FX_BSTRC("ASCII85Decode"), _FX_BSTRC("A85")}, - {_FX_BSTRC("LZWDecode"), _FX_BSTRC("LZW")}, - {_FX_BSTRC("FlateDecode"), _FX_BSTRC("Fl")}, - {_FX_BSTRC("RunLengthDecode"), _FX_BSTRC("RL")}, - {_FX_BSTRC("CCITTFaxDecode"), _FX_BSTRC("CCF")}, - {_FX_BSTRC("DCTDecode"), _FX_BSTRC("DCT")}, -}; - -struct AbbrReplacementOp { - bool is_replace_key; - CFX_ByteString key; - CFX_ByteStringC replacement; -}; - -class CPDF_StreamParserAutoClearer { - public: - CPDF_StreamParserAutoClearer(CPDF_StreamParser** scoped_variable, - CPDF_StreamParser* new_parser) - : scoped_variable_(scoped_variable) { - *scoped_variable_ = new_parser; - } - ~CPDF_StreamParserAutoClearer() { *scoped_variable_ = NULL; } - - private: - CPDF_StreamParser** scoped_variable_; -}; - -CFX_ByteStringC PDF_FindFullName(const PDF_AbbrPairs* table, - size_t count, - const CFX_ByteStringC& abbr) { - for (size_t i = 0; i < count; ++i) { - if (abbr.GetLength() != table[i].abbr.m_Size) - continue; - if (memcmp(abbr.GetPtr(), table[i].abbr.m_Ptr, abbr.GetLength())) - continue; - return CFX_ByteStringC(table[i].full_name.m_Ptr, table[i].full_name.m_Size); - } - return CFX_ByteStringC(); -} - -} // namespace - -bool IsPathOperator(const uint8_t* buf, size_t len) { - if (len == 1) { - uint8_t op = buf[0]; - if (op == kPathOperatorSubpath || op == kPathOperatorLine || - op == kPathOperatorCubicBezier1 || op == kPathOperatorCubicBezier2 || - op == kPathOperatorCubicBezier3) { - return true; - } - } else if (len == 2) { - if (buf[0] == kPathOperatorRectangle[0] && - buf[1] == kPathOperatorRectangle[1]) { - return true; - } - } - return false; -} - -CPDF_StreamContentParser::CPDF_StreamContentParser( - CPDF_Document* pDocument, - CPDF_Dictionary* pPageResources, - CPDF_Dictionary* pParentResources, - CFX_Matrix* pmtContentToUser, - CPDF_PageObjectHolder* pObjHolder, - CPDF_Dictionary* pResources, - CFX_FloatRect* pBBox, - CPDF_ParseOptions* pOptions, - CPDF_AllStates* pStates, - int level) - : m_pDocument(pDocument), - m_pPageResources(pPageResources), - m_pParentResources(pParentResources), - m_pResources(pResources), - m_pObjectHolder(pObjHolder), - m_Level(level), - m_ParamStartPos(0), - m_ParamCount(0), - m_pCurStates(new CPDF_AllStates), - m_pLastTextObject(nullptr), - m_DefFontSize(0), - m_pPathPoints(nullptr), - m_PathPointCount(0), - m_PathAllocSize(0), - m_PathCurrentX(0.0f), - m_PathCurrentY(0.0f), - m_PathClipType(0), - m_pLastImage(nullptr), - m_pLastImageDict(nullptr), - m_pLastCloneImageDict(nullptr), - m_bReleaseLastDict(TRUE), - m_bColored(FALSE), - m_bResourceMissing(FALSE) { - if (pmtContentToUser) { - m_mtContentToUser = *pmtContentToUser; - } - if (pOptions) { - m_Options = *pOptions; - } - if (!m_pResources) { - m_pResources = m_pParentResources; - } - if (!m_pResources) { - m_pResources = m_pPageResources; - } - if (pBBox) { - m_BBox = *pBBox; - } - if (pStates) { - m_pCurStates->Copy(*pStates); - } else { - m_pCurStates->m_GeneralState.New(); - m_pCurStates->m_GraphState.New(); - m_pCurStates->m_TextState.New(); - m_pCurStates->m_ColorState.New(); - } - for (size_t i = 0; i < FX_ArraySize(m_Type3Data); ++i) { - m_Type3Data[i] = 0.0; - } -} - -CPDF_StreamContentParser::~CPDF_StreamContentParser() { - ClearAllParams(); - FX_Free(m_pPathPoints); - if (m_pLastImageDict) { - m_pLastImageDict->Release(); - } - if (m_pLastCloneImageDict) { - m_pLastCloneImageDict->Release(); - } -} - -int CPDF_StreamContentParser::GetNextParamPos() { - if (m_ParamCount == PARAM_BUF_SIZE) { - m_ParamStartPos++; - if (m_ParamStartPos == PARAM_BUF_SIZE) { - m_ParamStartPos = 0; - } - if (m_ParamBuf[m_ParamStartPos].m_Type == 0) { - if (CPDF_Object* pObject = m_ParamBuf[m_ParamStartPos].m_pObject) - pObject->Release(); - } - return m_ParamStartPos; - } - int index = m_ParamStartPos + m_ParamCount; - if (index >= PARAM_BUF_SIZE) { - index -= PARAM_BUF_SIZE; - } - m_ParamCount++; - return index; -} - -void CPDF_StreamContentParser::AddNameParam(const FX_CHAR* name, int len) { - int index = GetNextParamPos(); - if (len > 32) { - m_ParamBuf[index].m_Type = ContentParam::OBJECT; - m_ParamBuf[index].m_pObject = - new CPDF_Name(PDF_NameDecode(CFX_ByteStringC(name, len))); - } else { - m_ParamBuf[index].m_Type = ContentParam::NAME; - if (!FXSYS_memchr(name, '#', len)) { - FXSYS_memcpy(m_ParamBuf[index].m_Name.m_Buffer, name, len); - m_ParamBuf[index].m_Name.m_Len = len; - } else { - CFX_ByteString str = PDF_NameDecode(CFX_ByteStringC(name, len)); - FXSYS_memcpy(m_ParamBuf[index].m_Name.m_Buffer, str.c_str(), - str.GetLength()); - m_ParamBuf[index].m_Name.m_Len = str.GetLength(); - } - } -} - -void CPDF_StreamContentParser::AddNumberParam(const FX_CHAR* str, int len) { - int index = GetNextParamPos(); - m_ParamBuf[index].m_Type = ContentParam::NUMBER; - FX_atonum(CFX_ByteStringC(str, len), m_ParamBuf[index].m_Number.m_bInteger, - &m_ParamBuf[index].m_Number.m_Integer); -} -void CPDF_StreamContentParser::AddObjectParam(CPDF_Object* pObj) { - int index = GetNextParamPos(); - m_ParamBuf[index].m_Type = ContentParam::OBJECT; - m_ParamBuf[index].m_pObject = pObj; -} -void CPDF_StreamContentParser::ClearAllParams() { - FX_DWORD index = m_ParamStartPos; - for (FX_DWORD i = 0; i < m_ParamCount; i++) { - if (m_ParamBuf[index].m_Type == 0) { - if (CPDF_Object* pObject = m_ParamBuf[index].m_pObject) - pObject->Release(); - } - index++; - if (index == PARAM_BUF_SIZE) { - index = 0; - } - } - m_ParamStartPos = 0; - m_ParamCount = 0; -} - -CPDF_Object* CPDF_StreamContentParser::GetObject(FX_DWORD index) { - if (index >= m_ParamCount) { - return NULL; - } - int real_index = m_ParamStartPos + m_ParamCount - index - 1; - if (real_index >= PARAM_BUF_SIZE) { - real_index -= PARAM_BUF_SIZE; - } - ContentParam& param = m_ParamBuf[real_index]; - if (param.m_Type == ContentParam::NUMBER) { - CPDF_Number* pNumber = param.m_Number.m_bInteger - ? new CPDF_Number(param.m_Number.m_Integer) - : new CPDF_Number(param.m_Number.m_Float); - - param.m_Type = ContentParam::OBJECT; - param.m_pObject = pNumber; - return pNumber; - } - if (param.m_Type == ContentParam::NAME) { - CPDF_Name* pName = new CPDF_Name( - CFX_ByteString(param.m_Name.m_Buffer, param.m_Name.m_Len)); - param.m_Type = ContentParam::OBJECT; - param.m_pObject = pName; - return pName; - } - if (param.m_Type == ContentParam::OBJECT) { - return param.m_pObject; - } - ASSERT(FALSE); - return NULL; -} - -CFX_ByteString CPDF_StreamContentParser::GetString(FX_DWORD index) { - if (index >= m_ParamCount) { - return CFX_ByteString(); - } - int real_index = m_ParamStartPos + m_ParamCount - index - 1; - if (real_index >= PARAM_BUF_SIZE) { - real_index -= PARAM_BUF_SIZE; - } - ContentParam& param = m_ParamBuf[real_index]; - if (param.m_Type == ContentParam::NAME) { - return CFX_ByteString(param.m_Name.m_Buffer, param.m_Name.m_Len); - } - if (param.m_Type == 0 && param.m_pObject) { - return param.m_pObject->GetString(); - } - return CFX_ByteString(); -} - -FX_FLOAT CPDF_StreamContentParser::GetNumber(FX_DWORD index) { - if (index >= m_ParamCount) { - return 0; - } - int real_index = m_ParamStartPos + m_ParamCount - index - 1; - if (real_index >= PARAM_BUF_SIZE) { - real_index -= PARAM_BUF_SIZE; - } - ContentParam& param = m_ParamBuf[real_index]; - if (param.m_Type == ContentParam::NUMBER) { - return param.m_Number.m_bInteger ? (FX_FLOAT)param.m_Number.m_Integer - : param.m_Number.m_Float; - } - if (param.m_Type == 0 && param.m_pObject) { - return param.m_pObject->GetNumber(); - } - return 0; -} - -FX_FLOAT CPDF_StreamContentParser::GetNumber16(FX_DWORD index) { - return GetNumber(index); -} - -void CPDF_StreamContentParser::SetGraphicStates(CPDF_PageObject* pObj, - FX_BOOL bColor, - FX_BOOL bText, - FX_BOOL bGraph) { - pObj->m_GeneralState = m_pCurStates->m_GeneralState; - pObj->m_ClipPath = m_pCurStates->m_ClipPath; - pObj->m_ContentMark = m_CurContentMark; - if (bColor) { - pObj->m_ColorState = m_pCurStates->m_ColorState; - } - if (bGraph) { - pObj->m_GraphState = m_pCurStates->m_GraphState; - } - if (bText) { - pObj->m_TextState = m_pCurStates->m_TextState; - } -} - -// static -CPDF_StreamContentParser::OpCodes -CPDF_StreamContentParser::InitializeOpCodes() { - return OpCodes({ - {FXBSTR_ID('"', 0, 0, 0), - &CPDF_StreamContentParser::Handle_NextLineShowText_Space}, - {FXBSTR_ID('\'', 0, 0, 0), - &CPDF_StreamContentParser::Handle_NextLineShowText}, - {FXBSTR_ID('B', 0, 0, 0), - &CPDF_StreamContentParser::Handle_FillStrokePath}, - {FXBSTR_ID('B', '*', 0, 0), - &CPDF_StreamContentParser::Handle_EOFillStrokePath}, - {FXBSTR_ID('B', 'D', 'C', 0), - &CPDF_StreamContentParser::Handle_BeginMarkedContent_Dictionary}, - {FXBSTR_ID('B', 'I', 0, 0), &CPDF_StreamContentParser::Handle_BeginImage}, - {FXBSTR_ID('B', 'M', 'C', 0), - &CPDF_StreamContentParser::Handle_BeginMarkedContent}, - {FXBSTR_ID('B', 'T', 0, 0), &CPDF_StreamContentParser::Handle_BeginText}, - {FXBSTR_ID('C', 'S', 0, 0), - &CPDF_StreamContentParser::Handle_SetColorSpace_Stroke}, - {FXBSTR_ID('D', 'P', 0, 0), - &CPDF_StreamContentParser::Handle_MarkPlace_Dictionary}, - {FXBSTR_ID('D', 'o', 0, 0), - &CPDF_StreamContentParser::Handle_ExecuteXObject}, - {FXBSTR_ID('E', 'I', 0, 0), &CPDF_StreamContentParser::Handle_EndImage}, - {FXBSTR_ID('E', 'M', 'C', 0), - &CPDF_StreamContentParser::Handle_EndMarkedContent}, - {FXBSTR_ID('E', 'T', 0, 0), &CPDF_StreamContentParser::Handle_EndText}, - {FXBSTR_ID('F', 0, 0, 0), &CPDF_StreamContentParser::Handle_FillPathOld}, - {FXBSTR_ID('G', 0, 0, 0), - &CPDF_StreamContentParser::Handle_SetGray_Stroke}, - {FXBSTR_ID('I', 'D', 0, 0), - &CPDF_StreamContentParser::Handle_BeginImageData}, - {FXBSTR_ID('J', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetLineCap}, - {FXBSTR_ID('K', 0, 0, 0), - &CPDF_StreamContentParser::Handle_SetCMYKColor_Stroke}, - {FXBSTR_ID('M', 0, 0, 0), - &CPDF_StreamContentParser::Handle_SetMiterLimit}, - {FXBSTR_ID('M', 'P', 0, 0), &CPDF_StreamContentParser::Handle_MarkPlace}, - {FXBSTR_ID('Q', 0, 0, 0), - &CPDF_StreamContentParser::Handle_RestoreGraphState}, - {FXBSTR_ID('R', 'G', 0, 0), - &CPDF_StreamContentParser::Handle_SetRGBColor_Stroke}, - {FXBSTR_ID('S', 0, 0, 0), &CPDF_StreamContentParser::Handle_StrokePath}, - {FXBSTR_ID('S', 'C', 0, 0), - &CPDF_StreamContentParser::Handle_SetColor_Stroke}, - {FXBSTR_ID('S', 'C', 'N', 0), - &CPDF_StreamContentParser::Handle_SetColorPS_Stroke}, - {FXBSTR_ID('T', '*', 0, 0), - &CPDF_StreamContentParser::Handle_MoveToNextLine}, - {FXBSTR_ID('T', 'D', 0, 0), - &CPDF_StreamContentParser::Handle_MoveTextPoint_SetLeading}, - {FXBSTR_ID('T', 'J', 0, 0), - &CPDF_StreamContentParser::Handle_ShowText_Positioning}, - {FXBSTR_ID('T', 'L', 0, 0), - &CPDF_StreamContentParser::Handle_SetTextLeading}, - {FXBSTR_ID('T', 'c', 0, 0), - &CPDF_StreamContentParser::Handle_SetCharSpace}, - {FXBSTR_ID('T', 'd', 0, 0), - &CPDF_StreamContentParser::Handle_MoveTextPoint}, - {FXBSTR_ID('T', 'f', 0, 0), &CPDF_StreamContentParser::Handle_SetFont}, - {FXBSTR_ID('T', 'j', 0, 0), &CPDF_StreamContentParser::Handle_ShowText}, - {FXBSTR_ID('T', 'm', 0, 0), - &CPDF_StreamContentParser::Handle_SetTextMatrix}, - {FXBSTR_ID('T', 'r', 0, 0), - &CPDF_StreamContentParser::Handle_SetTextRenderMode}, - {FXBSTR_ID('T', 's', 0, 0), - &CPDF_StreamContentParser::Handle_SetTextRise}, - {FXBSTR_ID('T', 'w', 0, 0), - &CPDF_StreamContentParser::Handle_SetWordSpace}, - {FXBSTR_ID('T', 'z', 0, 0), - &CPDF_StreamContentParser::Handle_SetHorzScale}, - {FXBSTR_ID('W', 0, 0, 0), &CPDF_StreamContentParser::Handle_Clip}, - {FXBSTR_ID('W', '*', 0, 0), &CPDF_StreamContentParser::Handle_EOClip}, - {FXBSTR_ID('b', 0, 0, 0), - &CPDF_StreamContentParser::Handle_CloseFillStrokePath}, - {FXBSTR_ID('b', '*', 0, 0), - &CPDF_StreamContentParser::Handle_CloseEOFillStrokePath}, - {FXBSTR_ID('c', 0, 0, 0), &CPDF_StreamContentParser::Handle_CurveTo_123}, - {FXBSTR_ID('c', 'm', 0, 0), - &CPDF_StreamContentParser::Handle_ConcatMatrix}, - {FXBSTR_ID('c', 's', 0, 0), - &CPDF_StreamContentParser::Handle_SetColorSpace_Fill}, - {FXBSTR_ID('d', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetDash}, - {FXBSTR_ID('d', '0', 0, 0), - &CPDF_StreamContentParser::Handle_SetCharWidth}, - {FXBSTR_ID('d', '1', 0, 0), - &CPDF_StreamContentParser::Handle_SetCachedDevice}, - {FXBSTR_ID('f', 0, 0, 0), &CPDF_StreamContentParser::Handle_FillPath}, - {FXBSTR_ID('f', '*', 0, 0), &CPDF_StreamContentParser::Handle_EOFillPath}, - {FXBSTR_ID('g', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetGray_Fill}, - {FXBSTR_ID('g', 's', 0, 0), - &CPDF_StreamContentParser::Handle_SetExtendGraphState}, - {FXBSTR_ID('h', 0, 0, 0), &CPDF_StreamContentParser::Handle_ClosePath}, - {FXBSTR_ID('i', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetFlat}, - {FXBSTR_ID('j', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetLineJoin}, - {FXBSTR_ID('k', 0, 0, 0), - &CPDF_StreamContentParser::Handle_SetCMYKColor_Fill}, - {FXBSTR_ID('l', 0, 0, 0), &CPDF_StreamContentParser::Handle_LineTo}, - {FXBSTR_ID('m', 0, 0, 0), &CPDF_StreamContentParser::Handle_MoveTo}, - {FXBSTR_ID('n', 0, 0, 0), &CPDF_StreamContentParser::Handle_EndPath}, - {FXBSTR_ID('q', 0, 0, 0), - &CPDF_StreamContentParser::Handle_SaveGraphState}, - {FXBSTR_ID('r', 'e', 0, 0), &CPDF_StreamContentParser::Handle_Rectangle}, - {FXBSTR_ID('r', 'g', 0, 0), - &CPDF_StreamContentParser::Handle_SetRGBColor_Fill}, - {FXBSTR_ID('r', 'i', 0, 0), - &CPDF_StreamContentParser::Handle_SetRenderIntent}, - {FXBSTR_ID('s', 0, 0, 0), - &CPDF_StreamContentParser::Handle_CloseStrokePath}, - {FXBSTR_ID('s', 'c', 0, 0), - &CPDF_StreamContentParser::Handle_SetColor_Fill}, - {FXBSTR_ID('s', 'c', 'n', 0), - &CPDF_StreamContentParser::Handle_SetColorPS_Fill}, - {FXBSTR_ID('s', 'h', 0, 0), &CPDF_StreamContentParser::Handle_ShadeFill}, - {FXBSTR_ID('v', 0, 0, 0), &CPDF_StreamContentParser::Handle_CurveTo_23}, - {FXBSTR_ID('w', 0, 0, 0), &CPDF_StreamContentParser::Handle_SetLineWidth}, - {FXBSTR_ID('y', 0, 0, 0), &CPDF_StreamContentParser::Handle_CurveTo_13}, - }); -} - -void CPDF_StreamContentParser::OnOperator(const FX_CHAR* op) { - int i = 0; - FX_DWORD opid = 0; - while (i < 4 && op[i]) { - opid = (opid << 8) + op[i]; - i++; - } - while (i < 4) { - opid <<= 8; - i++; - } - - static const OpCodes s_OpCodes = InitializeOpCodes(); - - auto it = s_OpCodes.find(opid); - if (it != s_OpCodes.end()) - (this->*it->second)(); -} - -void CPDF_StreamContentParser::Handle_CloseFillStrokePath() { - if (m_Options.m_bTextOnly) { - return; - } - Handle_ClosePath(); - AddPathObject(FXFILL_WINDING, TRUE); -} - -void CPDF_StreamContentParser::Handle_FillStrokePath() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathObject(FXFILL_WINDING, TRUE); -} - -void CPDF_StreamContentParser::Handle_CloseEOFillStrokePath() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathPoint(m_PathStartX, m_PathStartY, FXPT_LINETO | FXPT_CLOSEFIGURE); - AddPathObject(FXFILL_ALTERNATE, TRUE); -} - -void CPDF_StreamContentParser::Handle_EOFillStrokePath() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathObject(FXFILL_ALTERNATE, TRUE); -} - -void CPDF_StreamContentParser::Handle_BeginMarkedContent_Dictionary() { - if (!m_Options.m_bMarkedContent) { - return; - } - CFX_ByteString tag = GetString(1); - CPDF_Object* pProperty = GetObject(0); - if (!pProperty) { - return; - } - FX_BOOL bDirect = TRUE; - if (pProperty->IsName()) { - pProperty = FindResourceObj("Properties", pProperty->GetString()); - if (!pProperty) - return; - bDirect = FALSE; - } - if (CPDF_Dictionary* pDict = pProperty->AsDictionary()) { - m_CurContentMark.GetModify()->AddMark(tag, pDict, bDirect); - } -} - -void CPDF_StreamContentParser::Handle_BeginImage() { - FX_FILESIZE savePos = m_pSyntax->GetPos(); - CPDF_Dictionary* pDict = new CPDF_Dictionary; - while (1) { - CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement(); - if (type == CPDF_StreamParser::Keyword) { - CFX_ByteString bsKeyword(m_pSyntax->GetWordBuf(), - m_pSyntax->GetWordSize()); - if (bsKeyword != "ID") { - m_pSyntax->SetPos(savePos); - pDict->Release(); - return; - } - } - if (type != CPDF_StreamParser::Name) { - break; - } - CFX_ByteString key((const FX_CHAR*)m_pSyntax->GetWordBuf() + 1, - m_pSyntax->GetWordSize() - 1); - std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>> pObj( - m_pSyntax->ReadNextObject()); - if (!key.IsEmpty()) { - FX_DWORD dwObjNum = pObj ? pObj->GetObjNum() : 0; - if (dwObjNum) - pDict->SetAtReference(key, m_pDocument, dwObjNum); - else - pDict->SetAt(key, pObj.release()); - } - } - PDF_ReplaceAbbr(pDict); - CPDF_Object* pCSObj = NULL; - if (pDict->KeyExist("ColorSpace")) { - pCSObj = pDict->GetElementValue("ColorSpace"); - if (pCSObj->IsName()) { - CFX_ByteString name = pCSObj->GetString(); - if (name != "DeviceRGB" && name != "DeviceGray" && name != "DeviceCMYK") { - pCSObj = FindResourceObj("ColorSpace", name); - if (pCSObj && !pCSObj->GetObjNum()) { - pCSObj = pCSObj->Clone(); - pDict->SetAt("ColorSpace", pCSObj); - } - } - } - } - CPDF_Stream* pStream = m_pSyntax->ReadInlineStream( - m_pDocument, pDict, pCSObj, m_Options.m_bDecodeInlineImage); - while (1) { - CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement(); - if (type == CPDF_StreamParser::EndOfData) { - break; - } - if (type != CPDF_StreamParser::Keyword) { - continue; - } - if (m_pSyntax->GetWordSize() == 2 && m_pSyntax->GetWordBuf()[0] == 'E' && - m_pSyntax->GetWordBuf()[1] == 'I') { - break; - } - } - if (m_Options.m_bTextOnly) { - if (pStream) { - pStream->Release(); - } else { - pDict->Release(); - } - return; - } - pDict->SetAtName("Subtype", "Image"); - CPDF_ImageObject* pImgObj = AddImage(pStream, NULL, TRUE); - if (!pImgObj) { - if (pStream) { - pStream->Release(); - } else { - pDict->Release(); - } - } -} - -void CPDF_StreamContentParser::Handle_BeginMarkedContent() { - if (!m_Options.m_bMarkedContent) { - return; - } - CFX_ByteString tag = GetString(0); - m_CurContentMark.GetModify()->AddMark(tag, NULL, FALSE); -} - -void CPDF_StreamContentParser::Handle_BeginText() { - m_pCurStates->m_TextMatrix.Set(1.0f, 0, 0, 1.0f, 0, 0); - OnChangeTextMatrix(); - m_pCurStates->m_TextX = 0; - m_pCurStates->m_TextY = 0; - m_pCurStates->m_TextLineX = 0; - m_pCurStates->m_TextLineY = 0; -} - -void CPDF_StreamContentParser::Handle_CurveTo_123() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathPoint(GetNumber(5), GetNumber(4), FXPT_BEZIERTO); - AddPathPoint(GetNumber(3), GetNumber(2), FXPT_BEZIERTO); - AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO); -} - -void CPDF_StreamContentParser::Handle_ConcatMatrix() { - FX_FLOAT a2 = GetNumber16(5), b2 = GetNumber16(4), c2 = GetNumber16(3), - d2 = GetNumber16(2); - FX_FLOAT e2 = GetNumber(1), f2 = GetNumber(0); - CFX_Matrix new_matrix(a2, b2, c2, d2, e2, f2); - new_matrix.Concat(m_pCurStates->m_CTM); - m_pCurStates->m_CTM = new_matrix; - OnChangeTextMatrix(); -} - -void CPDF_StreamContentParser::Handle_SetColorSpace_Fill() { - if (m_Options.m_bTextOnly) { - return; - } - CFX_ByteString csname = GetString(0); - CPDF_ColorSpace* pCS = FindColorSpace(csname); - if (!pCS) { - return; - } - m_pCurStates->m_ColorState.GetModify()->m_FillColor.SetColorSpace(pCS); -} - -void CPDF_StreamContentParser::Handle_SetColorSpace_Stroke() { - if (m_Options.m_bTextOnly) { - return; - } - CFX_ByteString csname = GetString(0); - CPDF_ColorSpace* pCS = FindColorSpace(csname); - if (!pCS) { - return; - } - m_pCurStates->m_ColorState.GetModify()->m_StrokeColor.SetColorSpace(pCS); -} - -void CPDF_StreamContentParser::Handle_SetDash() { - if (m_Options.m_bTextOnly) { - return; - } - CPDF_Array* pArray = GetObject(1) ? GetObject(1)->GetArray() : NULL; - if (!pArray) { - return; - } - m_pCurStates->SetLineDash(pArray, GetNumber(0), 1.0f); -} - -void CPDF_StreamContentParser::Handle_SetCharWidth() { - m_Type3Data[0] = GetNumber(1); - m_Type3Data[1] = GetNumber(0); - m_bColored = TRUE; -} - -void CPDF_StreamContentParser::Handle_SetCachedDevice() { - for (int i = 0; i < 6; i++) { - m_Type3Data[i] = GetNumber(5 - i); - } - m_bColored = FALSE; -} - -void CPDF_StreamContentParser::Handle_ExecuteXObject() { - CFX_ByteString name = GetString(0); - if (name == m_LastImageName && m_pLastImage && m_pLastImage->GetStream() && - m_pLastImage->GetStream()->GetObjNum()) { - AddImage(nullptr, m_pLastImage, FALSE); - return; - } - - if (m_Options.m_bTextOnly) { - if (!m_pResources) - return; - - CPDF_Dictionary* pList = m_pResources->GetDictBy("XObject"); - if (!pList && m_pPageResources && m_pResources != m_pPageResources) - pList = m_pPageResources->GetDictBy("XObject"); - if (!pList) - return; - CPDF_Reference* pRes = ToReference(pList->GetElement(name)); - if (!pRes) - return; - - FX_BOOL bForm; - if (m_pDocument->IsFormStream(pRes->GetRefObjNum(), bForm) && !bForm) - return; - } - - CPDF_Stream* pXObject = ToStream(FindResourceObj("XObject", name)); - if (!pXObject) { - m_bResourceMissing = TRUE; - return; - } - - CFX_ByteStringC type = pXObject->GetDict() - ? pXObject->GetDict()->GetConstStringBy("Subtype") - : CFX_ByteStringC(); - if (type == "Image") { - if (m_Options.m_bTextOnly) { - return; - } - CPDF_ImageObject* pObj = AddImage(pXObject, NULL, FALSE); - m_LastImageName = name; - m_pLastImage = pObj->m_pImage; - if (!m_pObjectHolder->HasImageMask()) - m_pObjectHolder->SetHasImageMask(m_pLastImage->IsMask()); - } else if (type == "Form") { - AddForm(pXObject); - } else { - return; - } -} - -void CPDF_StreamContentParser::AddForm(CPDF_Stream* pStream) { - if (!m_Options.m_bSeparateForm) { - CPDF_Dictionary* pResources = pStream->GetDict()->GetDictBy("Resources"); - CFX_Matrix form_matrix = pStream->GetDict()->GetMatrixBy("Matrix"); - form_matrix.Concat(m_pCurStates->m_CTM); - CPDF_Array* pBBox = pStream->GetDict()->GetArrayBy("BBox"); - CFX_FloatRect form_bbox; - CPDF_Path ClipPath; - if (pBBox) { - form_bbox = pStream->GetDict()->GetRectBy("BBox"); - ClipPath.New(); - ClipPath.AppendRect(form_bbox.left, form_bbox.bottom, form_bbox.right, - form_bbox.top); - ClipPath.Transform(&form_matrix); - form_bbox.Transform(&form_matrix); - } - CPDF_StreamContentParser parser(m_pDocument, m_pPageResources, m_pResources, - &m_mtContentToUser, m_pObjectHolder, - pResources, &form_bbox, &m_Options, - m_pCurStates.get(), m_Level + 1); - parser.m_pCurStates->m_CTM = form_matrix; - if (ClipPath.NotNull()) { - parser.m_pCurStates->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING, - TRUE); - } - CPDF_StreamAcc stream; - stream.LoadAllData(pStream, FALSE); - if (stream.GetSize() == 0) { - return; - } - parser.Parse(stream.GetData(), stream.GetSize(), 0); - return; - } - std::unique_ptr<CPDF_FormObject> pFormObj(new CPDF_FormObject); - pFormObj->m_pForm = - new CPDF_Form(m_pDocument, m_pPageResources, pStream, m_pResources); - pFormObj->m_FormMatrix = m_pCurStates->m_CTM; - pFormObj->m_FormMatrix.Concat(m_mtContentToUser); - CPDF_AllStates status; - status.m_GeneralState = m_pCurStates->m_GeneralState; - status.m_GraphState = m_pCurStates->m_GraphState; - status.m_ColorState = m_pCurStates->m_ColorState; - status.m_TextState = m_pCurStates->m_TextState; - pFormObj->m_pForm->ParseContent(&status, NULL, NULL, &m_Options, m_Level + 1); - if (!m_pObjectHolder->BackgroundAlphaNeeded() && - pFormObj->m_pForm->BackgroundAlphaNeeded()) { - m_pObjectHolder->SetBackgroundAlphaNeeded(TRUE); - } - pFormObj->CalcBoundingBox(); - SetGraphicStates(pFormObj.get(), TRUE, TRUE, TRUE); - m_pObjectHolder->GetPageObjectList()->push_back(std::move(pFormObj)); -} - -CPDF_ImageObject* CPDF_StreamContentParser::AddImage(CPDF_Stream* pStream, - CPDF_Image* pImage, - FX_BOOL bInline) { - if (!pStream && !pImage) { - return NULL; - } - CFX_Matrix ImageMatrix; - ImageMatrix.Copy(m_pCurStates->m_CTM); - ImageMatrix.Concat(m_mtContentToUser); - - std::unique_ptr<CPDF_ImageObject> pImageObj(new CPDF_ImageObject); - if (pImage) { - pImageObj->m_pImage = - m_pDocument->GetPageData()->GetImage(pImage->GetStream()); - } else if (pStream->GetObjNum()) { - pImageObj->m_pImage = m_pDocument->LoadImageF(pStream); - } else { - pImageObj->m_pImage = new CPDF_Image(m_pDocument); - pImageObj->m_pImage->LoadImageF(pStream, bInline); - } - SetGraphicStates(pImageObj.get(), pImageObj->m_pImage->IsMask(), FALSE, - FALSE); - pImageObj->m_Matrix = ImageMatrix; - pImageObj->CalcBoundingBox(); - CPDF_ImageObject* pRet = pImageObj.get(); - m_pObjectHolder->GetPageObjectList()->push_back(std::move(pImageObj)); - return pRet; -} - -void CPDF_StreamContentParser::Handle_MarkPlace_Dictionary() {} - -void CPDF_StreamContentParser::Handle_EndImage() {} - -void CPDF_StreamContentParser::Handle_EndMarkedContent() { - if (!m_Options.m_bMarkedContent) { - return; - } - if (m_CurContentMark.IsNull()) { - return; - } - int count = m_CurContentMark.GetObject()->CountItems(); - if (count == 1) { - m_CurContentMark.SetNull(); - return; - } - m_CurContentMark.GetModify()->DeleteLastMark(); -} - -void CPDF_StreamContentParser::Handle_EndText() { - int count = m_ClipTextList.GetSize(); - if (count == 0) { - return; - } - if (m_pCurStates->m_TextState.GetObject()->m_TextMode < 4) { - for (int i = 0; i < count; i++) { - delete m_ClipTextList.GetAt(i); - } - } else { - m_pCurStates->m_ClipPath.AppendTexts(m_ClipTextList.GetData(), count); - } - m_ClipTextList.RemoveAll(); -} - -void CPDF_StreamContentParser::Handle_FillPath() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathObject(FXFILL_WINDING, FALSE); -} - -void CPDF_StreamContentParser::Handle_FillPathOld() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathObject(FXFILL_WINDING, FALSE); -} - -void CPDF_StreamContentParser::Handle_EOFillPath() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathObject(FXFILL_ALTERNATE, FALSE); -} - -void CPDF_StreamContentParser::Handle_SetGray_Fill() { - FX_FLOAT value = GetNumber(0); - CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY); - m_pCurStates->m_ColorState.SetFillColor(pCS, &value, 1); -} - -void CPDF_StreamContentParser::Handle_SetGray_Stroke() { - FX_FLOAT value = GetNumber(0); - CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY); - m_pCurStates->m_ColorState.SetStrokeColor(pCS, &value, 1); -} - -void CPDF_StreamContentParser::Handle_SetExtendGraphState() { - CFX_ByteString name = GetString(0); - CPDF_Dictionary* pGS = ToDictionary(FindResourceObj("ExtGState", name)); - if (!pGS) { - m_bResourceMissing = TRUE; - return; - } - m_pCurStates->ProcessExtGS(pGS, this); -} - -void CPDF_StreamContentParser::Handle_ClosePath() { - if (m_Options.m_bTextOnly) { - return; - } - if (m_PathPointCount == 0) { - return; - } - if (m_PathStartX != m_PathCurrentX || m_PathStartY != m_PathCurrentY) { - AddPathPoint(m_PathStartX, m_PathStartY, FXPT_LINETO | FXPT_CLOSEFIGURE); - } else if (m_pPathPoints[m_PathPointCount - 1].m_Flag != FXPT_MOVETO) { - m_pPathPoints[m_PathPointCount - 1].m_Flag |= FXPT_CLOSEFIGURE; - } -} - -void CPDF_StreamContentParser::Handle_SetFlat() { - m_pCurStates->m_GeneralState.GetModify()->m_Flatness = GetNumber(0); -} - -void CPDF_StreamContentParser::Handle_BeginImageData() {} - -void CPDF_StreamContentParser::Handle_SetLineJoin() { - m_pCurStates->m_GraphState.GetModify()->m_LineJoin = - (CFX_GraphStateData::LineJoin)GetInteger(0); -} - -void CPDF_StreamContentParser::Handle_SetLineCap() { - m_pCurStates->m_GraphState.GetModify()->m_LineCap = - (CFX_GraphStateData::LineCap)GetInteger(0); -} - -void CPDF_StreamContentParser::Handle_SetCMYKColor_Fill() { - if (m_ParamCount != 4) - return; - - FX_FLOAT values[4]; - for (int i = 0; i < 4; i++) { - values[i] = GetNumber(3 - i); - } - CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK); - m_pCurStates->m_ColorState.SetFillColor(pCS, values, 4); -} - -void CPDF_StreamContentParser::Handle_SetCMYKColor_Stroke() { - if (m_ParamCount != 4) - return; - - FX_FLOAT values[4]; - for (int i = 0; i < 4; i++) { - values[i] = GetNumber(3 - i); - } - CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK); - m_pCurStates->m_ColorState.SetStrokeColor(pCS, values, 4); -} - -void CPDF_StreamContentParser::Handle_LineTo() { - if (m_ParamCount != 2) - return; - - if (m_Options.m_bTextOnly) { - return; - } - AddPathPoint(GetNumber(1), GetNumber(0), FXPT_LINETO); -} - -void CPDF_StreamContentParser::Handle_MoveTo() { - if (m_ParamCount != 2) - return; - - if (m_Options.m_bTextOnly) { - m_pSyntax->SkipPathObject(); - return; - } - AddPathPoint(GetNumber(1), GetNumber(0), FXPT_MOVETO); - ParsePathObject(); -} - -void CPDF_StreamContentParser::Handle_SetMiterLimit() { - m_pCurStates->m_GraphState.GetModify()->m_MiterLimit = GetNumber(0); -} - -void CPDF_StreamContentParser::Handle_MarkPlace() {} - -void CPDF_StreamContentParser::Handle_EndPath() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathObject(0, FALSE); -} - -void CPDF_StreamContentParser::Handle_SaveGraphState() { - std::unique_ptr<CPDF_AllStates> pStates(new CPDF_AllStates); - pStates->Copy(*m_pCurStates); - m_StateStack.push_back(std::move(pStates)); -} - -void CPDF_StreamContentParser::Handle_RestoreGraphState() { - if (m_StateStack.empty()) - return; - std::unique_ptr<CPDF_AllStates> pStates = std::move(m_StateStack.back()); - m_StateStack.pop_back(); - m_pCurStates->Copy(*pStates); -} - -void CPDF_StreamContentParser::Handle_Rectangle() { - if (m_Options.m_bTextOnly) { - return; - } - FX_FLOAT x = GetNumber(3), y = GetNumber(2); - FX_FLOAT w = GetNumber(1), h = GetNumber(0); - AddPathRect(x, y, w, h); -} - -void CPDF_StreamContentParser::AddPathRect(FX_FLOAT x, - FX_FLOAT y, - FX_FLOAT w, - FX_FLOAT h) { - AddPathPoint(x, y, FXPT_MOVETO); - AddPathPoint(x + w, y, FXPT_LINETO); - AddPathPoint(x + w, y + h, FXPT_LINETO); - AddPathPoint(x, y + h, FXPT_LINETO); - AddPathPoint(x, y, FXPT_LINETO | FXPT_CLOSEFIGURE); -} - -void CPDF_StreamContentParser::Handle_SetRGBColor_Fill() { - if (m_ParamCount != 3) - return; - - FX_FLOAT values[3]; - for (int i = 0; i < 3; i++) { - values[i] = GetNumber(2 - i); - } - CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB); - m_pCurStates->m_ColorState.SetFillColor(pCS, values, 3); -} - -void CPDF_StreamContentParser::Handle_SetRGBColor_Stroke() { - if (m_ParamCount != 3) - return; - - FX_FLOAT values[3]; - for (int i = 0; i < 3; i++) { - values[i] = GetNumber(2 - i); - } - CPDF_ColorSpace* pCS = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB); - m_pCurStates->m_ColorState.SetStrokeColor(pCS, values, 3); -} - -void CPDF_StreamContentParser::Handle_SetRenderIntent() {} - -void CPDF_StreamContentParser::Handle_CloseStrokePath() { - if (m_Options.m_bTextOnly) { - return; - } - Handle_ClosePath(); - AddPathObject(0, TRUE); -} - -void CPDF_StreamContentParser::Handle_StrokePath() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathObject(0, TRUE); -} - -void CPDF_StreamContentParser::Handle_SetColor_Fill() { - if (m_Options.m_bTextOnly) { - return; - } - FX_FLOAT values[4]; - int nargs = m_ParamCount; - if (nargs > 4) { - nargs = 4; - } - for (int i = 0; i < nargs; i++) { - values[i] = GetNumber(nargs - i - 1); - } - m_pCurStates->m_ColorState.SetFillColor(NULL, values, nargs); -} - -void CPDF_StreamContentParser::Handle_SetColor_Stroke() { - if (m_Options.m_bTextOnly) { - return; - } - FX_FLOAT values[4]; - int nargs = m_ParamCount; - if (nargs > 4) { - nargs = 4; - } - for (int i = 0; i < nargs; i++) { - values[i] = GetNumber(nargs - i - 1); - } - m_pCurStates->m_ColorState.SetStrokeColor(NULL, values, nargs); -} - -void CPDF_StreamContentParser::Handle_SetColorPS_Fill() { - if (m_Options.m_bTextOnly) { - return; - } - CPDF_Object* pLastParam = GetObject(0); - if (!pLastParam) { - return; - } - int nargs = m_ParamCount; - int nvalues = nargs; - if (pLastParam->IsName()) { - nvalues--; - } - FX_FLOAT* values = NULL; - if (nvalues) { - values = FX_Alloc(FX_FLOAT, nvalues); - for (int i = 0; i < nvalues; i++) { - values[i] = GetNumber(nargs - i - 1); - } - } - if (nvalues != nargs) { - CPDF_Pattern* pPattern = FindPattern(GetString(0), FALSE); - if (pPattern) { - m_pCurStates->m_ColorState.SetFillPattern(pPattern, values, nvalues); - } - } else { - m_pCurStates->m_ColorState.SetFillColor(NULL, values, nvalues); - } - FX_Free(values); -} - -void CPDF_StreamContentParser::Handle_SetColorPS_Stroke() { - if (m_Options.m_bTextOnly) { - return; - } - CPDF_Object* pLastParam = GetObject(0); - if (!pLastParam) { - return; - } - int nargs = m_ParamCount; - int nvalues = nargs; - if (pLastParam->IsName()) - nvalues--; - - FX_FLOAT* values = NULL; - if (nvalues) { - values = FX_Alloc(FX_FLOAT, nvalues); - for (int i = 0; i < nvalues; i++) { - values[i] = GetNumber(nargs - i - 1); - } - } - if (nvalues != nargs) { - CPDF_Pattern* pPattern = FindPattern(GetString(0), FALSE); - if (pPattern) { - m_pCurStates->m_ColorState.SetStrokePattern(pPattern, values, nvalues); - } - } else { - m_pCurStates->m_ColorState.SetStrokeColor(NULL, values, nvalues); - } - FX_Free(values); -} - -CFX_FloatRect GetShadingBBox(CPDF_Stream* pStream, - ShadingType type, - const CFX_Matrix* pMatrix, - CPDF_Function** pFuncs, - int nFuncs, - CPDF_ColorSpace* pCS); - -void CPDF_StreamContentParser::Handle_ShadeFill() { - if (m_Options.m_bTextOnly) { - return; - } - CPDF_Pattern* pPattern = FindPattern(GetString(0), TRUE); - if (!pPattern) { - return; - } - if (pPattern->m_PatternType != CPDF_Pattern::SHADING) { - return; - } - CPDF_ShadingPattern* pShading = static_cast<CPDF_ShadingPattern*>(pPattern); - if (!pShading->m_bShadingObj) { - return; - } - if (!pShading->Load()) { - return; - } - std::unique_ptr<CPDF_ShadingObject> pObj(new CPDF_ShadingObject); - pObj->m_pShading = pShading; - SetGraphicStates(pObj.get(), FALSE, FALSE, FALSE); - pObj->m_Matrix = m_pCurStates->m_CTM; - pObj->m_Matrix.Concat(m_mtContentToUser); - CFX_FloatRect bbox; - if (!pObj->m_ClipPath.IsNull()) { - bbox = pObj->m_ClipPath.GetClipBox(); - } else { - bbox = m_BBox; - } - if (pShading->IsMeshShading()) { - bbox.Intersect(GetShadingBBox(ToStream(pShading->m_pShadingObj), - pShading->m_ShadingType, &pObj->m_Matrix, - pShading->m_pFunctions, pShading->m_nFuncs, - pShading->m_pCS)); - } - pObj->m_Left = bbox.left; - pObj->m_Right = bbox.right; - pObj->m_Top = bbox.top; - pObj->m_Bottom = bbox.bottom; - m_pObjectHolder->GetPageObjectList()->push_back(std::move(pObj)); -} - -void CPDF_StreamContentParser::Handle_SetCharSpace() { - m_pCurStates->m_TextState.GetModify()->m_CharSpace = GetNumber(0); -} - -void CPDF_StreamContentParser::Handle_MoveTextPoint() { - m_pCurStates->m_TextLineX += GetNumber(1); - m_pCurStates->m_TextLineY += GetNumber(0); - m_pCurStates->m_TextX = m_pCurStates->m_TextLineX; - m_pCurStates->m_TextY = m_pCurStates->m_TextLineY; -} - -void CPDF_StreamContentParser::Handle_MoveTextPoint_SetLeading() { - Handle_MoveTextPoint(); - m_pCurStates->m_TextLeading = -GetNumber(0); -} - -void CPDF_StreamContentParser::Handle_SetFont() { - FX_FLOAT fs = GetNumber(0); - if (fs == 0) { - fs = m_DefFontSize; - } - m_pCurStates->m_TextState.GetModify()->m_FontSize = fs; - CPDF_Font* pFont = FindFont(GetString(1)); - if (pFont) { - m_pCurStates->m_TextState.SetFont(pFont); - } -} - -CPDF_Object* CPDF_StreamContentParser::FindResourceObj( - const CFX_ByteStringC& type, - const CFX_ByteString& name) { - if (!m_pResources) { - return NULL; - } - if (m_pResources == m_pPageResources) { - CPDF_Dictionary* pList = m_pResources->GetDictBy(type); - if (!pList) { - return NULL; - } - CPDF_Object* pRes = pList->GetElementValue(name); - return pRes; - } - CPDF_Dictionary* pList = m_pResources->GetDictBy(type); - if (!pList) { - if (!m_pPageResources) { - return NULL; - } - CPDF_Dictionary* pList = m_pPageResources->GetDictBy(type); - if (!pList) { - return NULL; - } - CPDF_Object* pRes = pList->GetElementValue(name); - return pRes; - } - CPDF_Object* pRes = pList->GetElementValue(name); - return pRes; -} - -CPDF_Font* CPDF_StreamContentParser::FindFont(const CFX_ByteString& name) { - CPDF_Dictionary* pFontDict = ToDictionary(FindResourceObj("Font", name)); - if (!pFontDict) { - m_bResourceMissing = TRUE; - return CPDF_Font::GetStockFont(m_pDocument, "Helvetica"); - } - - CPDF_Font* pFont = m_pDocument->LoadFont(pFontDict); - if (pFont && pFont->IsType3Font()) { - pFont->AsType3Font()->SetPageResources(m_pResources); - pFont->AsType3Font()->CheckType3FontMetrics(); - } - return pFont; -} - -CPDF_ColorSpace* CPDF_StreamContentParser::FindColorSpace( - const CFX_ByteString& name) { - if (name == "Pattern") { - return CPDF_ColorSpace::GetStockCS(PDFCS_PATTERN); - } - if (name == "DeviceGray" || name == "DeviceCMYK" || name == "DeviceRGB") { - CFX_ByteString defname = "Default"; - defname += name.Mid(7); - CPDF_Object* pDefObj = FindResourceObj("ColorSpace", defname); - if (!pDefObj) { - if (name == "DeviceGray") { - return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY); - } - if (name == "DeviceRGB") { - return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB); - } - return CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK); - } - return m_pDocument->LoadColorSpace(pDefObj); - } - CPDF_Object* pCSObj = FindResourceObj("ColorSpace", name); - if (!pCSObj) { - m_bResourceMissing = TRUE; - return NULL; - } - return m_pDocument->LoadColorSpace(pCSObj); -} - -CPDF_Pattern* CPDF_StreamContentParser::FindPattern(const CFX_ByteString& name, - FX_BOOL bShading) { - CPDF_Object* pPattern = - FindResourceObj(bShading ? "Shading" : "Pattern", name); - if (!pPattern || (!pPattern->IsDictionary() && !pPattern->IsStream())) { - m_bResourceMissing = TRUE; - return NULL; - } - return m_pDocument->LoadPattern(pPattern, bShading, - &m_pCurStates->m_ParentMatrix); -} - -void CPDF_StreamContentParser::ConvertTextSpace(FX_FLOAT& x, FX_FLOAT& y) { - m_pCurStates->m_TextMatrix.Transform(x, y, x, y); - ConvertUserSpace(x, y); -} - -void CPDF_StreamContentParser::ConvertUserSpace(FX_FLOAT& x, FX_FLOAT& y) { - m_pCurStates->m_CTM.Transform(x, y, x, y); - m_mtContentToUser.Transform(x, y, x, y); -} - -void CPDF_StreamContentParser::AddTextObject(CFX_ByteString* pStrs, - FX_FLOAT fInitKerning, - FX_FLOAT* pKerning, - int nsegs) { - CPDF_Font* pFont = m_pCurStates->m_TextState.GetFont(); - if (!pFont) { - return; - } - if (fInitKerning != 0) { - if (!pFont->IsVertWriting()) { - m_pCurStates->m_TextX -= - (fInitKerning * m_pCurStates->m_TextState.GetFontSize()) / 1000; - } else { - m_pCurStates->m_TextY -= - (fInitKerning * m_pCurStates->m_TextState.GetFontSize()) / 1000; - } - } - if (nsegs == 0) { - return; - } - int textmode; - if (pFont->IsType3Font()) { - textmode = 0; - } else { - textmode = m_pCurStates->m_TextState.GetObject()->m_TextMode; - } - { - std::unique_ptr<CPDF_TextObject> pText(new CPDF_TextObject); - m_pLastTextObject = pText.get(); - SetGraphicStates(m_pLastTextObject, TRUE, TRUE, TRUE); - if (textmode && textmode != 3 && textmode != 4 && textmode != 7) { - FX_FLOAT* pCTM = pText->m_TextState.GetModify()->m_CTM; - pCTM[0] = m_pCurStates->m_CTM.a; - pCTM[1] = m_pCurStates->m_CTM.c; - pCTM[2] = m_pCurStates->m_CTM.b; - pCTM[3] = m_pCurStates->m_CTM.d; - } - pText->SetSegments(pStrs, pKerning, nsegs); - pText->m_PosX = m_pCurStates->m_TextX; - pText->m_PosY = m_pCurStates->m_TextY + m_pCurStates->m_TextRise; - ConvertTextSpace(pText->m_PosX, pText->m_PosY); - FX_FLOAT x_advance; - FX_FLOAT y_advance; - pText->CalcPositionData(&x_advance, &y_advance, - m_pCurStates->m_TextHorzScale, m_Level); - m_pCurStates->m_TextX += x_advance; - m_pCurStates->m_TextY += y_advance; - if (textmode > 3) - m_ClipTextList.Add(pText->Clone()); - m_pObjectHolder->GetPageObjectList()->push_back(std::move(pText)); - } - if (pKerning && pKerning[nsegs - 1] != 0) { - if (!pFont->IsVertWriting()) { - m_pCurStates->m_TextX -= - (pKerning[nsegs - 1] * m_pCurStates->m_TextState.GetFontSize()) / - 1000; - } else { - m_pCurStates->m_TextY -= - (pKerning[nsegs - 1] * m_pCurStates->m_TextState.GetFontSize()) / - 1000; - } - } -} - -void CPDF_StreamContentParser::Handle_ShowText() { - CFX_ByteString str = GetString(0); - if (str.IsEmpty()) { - return; - } - AddTextObject(&str, 0, NULL, 1); -} - -void CPDF_StreamContentParser::Handle_ShowText_Positioning() { - CPDF_Array* pArray = GetObject(0) ? GetObject(0)->GetArray() : NULL; - if (!pArray) { - return; - } - int n = pArray->GetCount(); - int nsegs = 0; - for (int i = 0; i < n; i++) { - if (pArray->GetElementValue(i)->IsString()) - nsegs++; - } - if (nsegs == 0) { - for (int i = 0; i < n; i++) { - m_pCurStates->m_TextX -= - (pArray->GetNumberAt(i) * m_pCurStates->m_TextState.GetFontSize()) / - 1000; - } - return; - } - CFX_ByteString* pStrs = new CFX_ByteString[nsegs]; - FX_FLOAT* pKerning = FX_Alloc(FX_FLOAT, nsegs); - int iSegment = 0; - FX_FLOAT fInitKerning = 0; - for (int i = 0; i < n; i++) { - CPDF_Object* pObj = pArray->GetElementValue(i); - if (pObj->IsString()) { - CFX_ByteString str = pObj->GetString(); - if (str.IsEmpty()) { - continue; - } - pStrs[iSegment] = str; - pKerning[iSegment++] = 0; - } else { - FX_FLOAT num = pObj ? pObj->GetNumber() : 0; - if (iSegment == 0) { - fInitKerning += num; - } else { - pKerning[iSegment - 1] += num; - } - } - } - AddTextObject(pStrs, fInitKerning, pKerning, iSegment); - delete[] pStrs; - FX_Free(pKerning); -} - -void CPDF_StreamContentParser::Handle_SetTextLeading() { - m_pCurStates->m_TextLeading = GetNumber(0); -} - -void CPDF_StreamContentParser::Handle_SetTextMatrix() { - m_pCurStates->m_TextMatrix.Set(GetNumber16(5), GetNumber16(4), GetNumber16(3), - GetNumber16(2), GetNumber(1), GetNumber(0)); - OnChangeTextMatrix(); - m_pCurStates->m_TextX = 0; - m_pCurStates->m_TextY = 0; - m_pCurStates->m_TextLineX = 0; - m_pCurStates->m_TextLineY = 0; -} - -void CPDF_StreamContentParser::OnChangeTextMatrix() { - CFX_Matrix text_matrix(m_pCurStates->m_TextHorzScale, 0.0f, 0.0f, 1.0f, 0.0f, - 0.0f); - text_matrix.Concat(m_pCurStates->m_TextMatrix); - text_matrix.Concat(m_pCurStates->m_CTM); - text_matrix.Concat(m_mtContentToUser); - FX_FLOAT* pTextMatrix = m_pCurStates->m_TextState.GetModify()->m_Matrix; - pTextMatrix[0] = text_matrix.a; - pTextMatrix[1] = text_matrix.c; - pTextMatrix[2] = text_matrix.b; - pTextMatrix[3] = text_matrix.d; -} - -void CPDF_StreamContentParser::Handle_SetTextRenderMode() { - int mode = GetInteger(0); - if (mode < 0 || mode > 7) { - return; - } - m_pCurStates->m_TextState.GetModify()->m_TextMode = mode; -} - -void CPDF_StreamContentParser::Handle_SetTextRise() { - m_pCurStates->m_TextRise = GetNumber(0); -} - -void CPDF_StreamContentParser::Handle_SetWordSpace() { - m_pCurStates->m_TextState.GetModify()->m_WordSpace = GetNumber(0); -} - -void CPDF_StreamContentParser::Handle_SetHorzScale() { - if (m_ParamCount != 1) { - return; - } - m_pCurStates->m_TextHorzScale = GetNumber(0) / 100; - OnChangeTextMatrix(); -} - -void CPDF_StreamContentParser::Handle_MoveToNextLine() { - m_pCurStates->m_TextLineY -= m_pCurStates->m_TextLeading; - m_pCurStates->m_TextX = m_pCurStates->m_TextLineX; - m_pCurStates->m_TextY = m_pCurStates->m_TextLineY; -} - -void CPDF_StreamContentParser::Handle_CurveTo_23() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathPoint(m_PathCurrentX, m_PathCurrentY, FXPT_BEZIERTO); - AddPathPoint(GetNumber(3), GetNumber(2), FXPT_BEZIERTO); - AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO); -} - -void CPDF_StreamContentParser::Handle_SetLineWidth() { - FX_FLOAT width = GetNumber(0); - m_pCurStates->m_GraphState.GetModify()->m_LineWidth = width; -} - -void CPDF_StreamContentParser::Handle_Clip() { - m_PathClipType = FXFILL_WINDING; -} - -void CPDF_StreamContentParser::Handle_EOClip() { - m_PathClipType = FXFILL_ALTERNATE; -} - -void CPDF_StreamContentParser::Handle_CurveTo_13() { - if (m_Options.m_bTextOnly) { - return; - } - AddPathPoint(GetNumber(3), GetNumber(2), FXPT_BEZIERTO); - AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO); - AddPathPoint(GetNumber(1), GetNumber(0), FXPT_BEZIERTO); -} - -void CPDF_StreamContentParser::Handle_NextLineShowText() { - Handle_MoveToNextLine(); - Handle_ShowText(); -} - -void CPDF_StreamContentParser::Handle_NextLineShowText_Space() { - m_pCurStates->m_TextState.GetModify()->m_WordSpace = GetNumber(2); - m_pCurStates->m_TextState.GetModify()->m_CharSpace = GetNumber(1); - Handle_NextLineShowText(); -} - -void CPDF_StreamContentParser::Handle_Invalid() {} - -void CPDF_StreamContentParser::AddPathPoint(FX_FLOAT x, FX_FLOAT y, int flag) { - m_PathCurrentX = x; - m_PathCurrentY = y; - if (flag == FXPT_MOVETO) { - m_PathStartX = x; - m_PathStartY = y; - if (m_PathPointCount && - m_pPathPoints[m_PathPointCount - 1].m_Flag == FXPT_MOVETO) { - m_pPathPoints[m_PathPointCount - 1].m_PointX = x; - m_pPathPoints[m_PathPointCount - 1].m_PointY = y; - return; - } - } else if (m_PathPointCount == 0) { - return; - } - m_PathPointCount++; - if (m_PathPointCount > m_PathAllocSize) { - int newsize = m_PathPointCount + 256; - FX_PATHPOINT* pNewPoints = FX_Alloc(FX_PATHPOINT, newsize); - if (m_PathAllocSize) { - FXSYS_memcpy(pNewPoints, m_pPathPoints, - m_PathAllocSize * sizeof(FX_PATHPOINT)); - FX_Free(m_pPathPoints); - } - m_pPathPoints = pNewPoints; - m_PathAllocSize = newsize; - } - m_pPathPoints[m_PathPointCount - 1].m_Flag = flag; - m_pPathPoints[m_PathPointCount - 1].m_PointX = x; - m_pPathPoints[m_PathPointCount - 1].m_PointY = y; -} - -void CPDF_StreamContentParser::AddPathObject(int FillType, FX_BOOL bStroke) { - int PathPointCount = m_PathPointCount, PathClipType = m_PathClipType; - m_PathPointCount = 0; - m_PathClipType = 0; - if (PathPointCount <= 1) { - if (PathPointCount && PathClipType) { - CPDF_Path path; - path.New()->AppendRect(0, 0, 0, 0); - m_pCurStates->m_ClipPath.AppendPath(path, FXFILL_WINDING, TRUE); - } - return; - } - if (PathPointCount && - m_pPathPoints[PathPointCount - 1].m_Flag == FXPT_MOVETO) { - PathPointCount--; - } - CPDF_Path Path; - CFX_PathData* pPathData = Path.New(); - pPathData->SetPointCount(PathPointCount); - FXSYS_memcpy(pPathData->GetPoints(), m_pPathPoints, - sizeof(FX_PATHPOINT) * PathPointCount); - CFX_Matrix matrix = m_pCurStates->m_CTM; - matrix.Concat(m_mtContentToUser); - if (bStroke || FillType) { - std::unique_ptr<CPDF_PathObject> pPathObj(new CPDF_PathObject); - pPathObj->m_bStroke = bStroke; - pPathObj->m_FillType = FillType; - pPathObj->m_Path = Path; - pPathObj->m_Matrix = matrix; - SetGraphicStates(pPathObj.get(), TRUE, FALSE, TRUE); - pPathObj->CalcBoundingBox(); - m_pObjectHolder->GetPageObjectList()->push_back(std::move(pPathObj)); - } - if (PathClipType) { - if (!matrix.IsIdentity()) { - Path.Transform(&matrix); - matrix.SetIdentity(); - } - m_pCurStates->m_ClipPath.AppendPath(Path, PathClipType, TRUE); - } -} - -FX_DWORD CPDF_StreamContentParser::Parse(const uint8_t* pData, - FX_DWORD dwSize, - FX_DWORD max_cost) { - if (m_Level > _FPDF_MAX_FORM_LEVEL_) { - return dwSize; - } - FX_DWORD InitObjCount = m_pObjectHolder->GetPageObjectList()->size(); - CPDF_StreamParser syntax(pData, dwSize); - CPDF_StreamParserAutoClearer auto_clearer(&m_pSyntax, &syntax); - while (1) { - FX_DWORD cost = m_pObjectHolder->GetPageObjectList()->size() - InitObjCount; - if (max_cost && cost >= max_cost) { - break; - } - switch (syntax.ParseNextElement()) { - case CPDF_StreamParser::EndOfData: - return m_pSyntax->GetPos(); - case CPDF_StreamParser::Keyword: - OnOperator((char*)syntax.GetWordBuf()); - ClearAllParams(); - break; - case CPDF_StreamParser::Number: - AddNumberParam((char*)syntax.GetWordBuf(), syntax.GetWordSize()); - break; - case CPDF_StreamParser::Name: - AddNameParam((const FX_CHAR*)syntax.GetWordBuf() + 1, - syntax.GetWordSize() - 1); - break; - default: - AddObjectParam(syntax.GetObject()); - } - } - return m_pSyntax->GetPos(); -} - -void CPDF_StreamContentParser::ParsePathObject() { - FX_FLOAT params[6] = {}; - int nParams = 0; - int last_pos = m_pSyntax->GetPos(); - while (1) { - CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement(); - FX_BOOL bProcessed = TRUE; - switch (type) { - case CPDF_StreamParser::EndOfData: - return; - case CPDF_StreamParser::Keyword: { - int len = m_pSyntax->GetWordSize(); - if (len == 1) { - switch (m_pSyntax->GetWordBuf()[0]) { - case kPathOperatorSubpath: - AddPathPoint(params[0], params[1], FXPT_MOVETO); - nParams = 0; - break; - case kPathOperatorLine: - AddPathPoint(params[0], params[1], FXPT_LINETO); - nParams = 0; - break; - case kPathOperatorCubicBezier1: - AddPathPoint(params[0], params[1], FXPT_BEZIERTO); - AddPathPoint(params[2], params[3], FXPT_BEZIERTO); - AddPathPoint(params[4], params[5], FXPT_BEZIERTO); - nParams = 0; - break; - case kPathOperatorCubicBezier2: - AddPathPoint(m_PathCurrentX, m_PathCurrentY, FXPT_BEZIERTO); - AddPathPoint(params[0], params[1], FXPT_BEZIERTO); - AddPathPoint(params[2], params[3], FXPT_BEZIERTO); - nParams = 0; - break; - case kPathOperatorCubicBezier3: - AddPathPoint(params[0], params[1], FXPT_BEZIERTO); - AddPathPoint(params[2], params[3], FXPT_BEZIERTO); - AddPathPoint(params[2], params[3], FXPT_BEZIERTO); - nParams = 0; - break; - case kPathOperatorClosePath: - Handle_ClosePath(); - nParams = 0; - break; - default: - bProcessed = FALSE; - break; - } - } else if (len == 2) { - if (m_pSyntax->GetWordBuf()[0] == kPathOperatorRectangle[0] && - m_pSyntax->GetWordBuf()[1] == kPathOperatorRectangle[1]) { - AddPathRect(params[0], params[1], params[2], params[3]); - nParams = 0; - } else { - bProcessed = FALSE; - } - } else { - bProcessed = FALSE; - } - if (bProcessed) { - last_pos = m_pSyntax->GetPos(); - } - break; - } - case CPDF_StreamParser::Number: { - if (nParams == 6) { - break; - } - FX_BOOL bInteger; - int value; - FX_atonum( - CFX_ByteStringC(m_pSyntax->GetWordBuf(), m_pSyntax->GetWordSize()), - bInteger, &value); - params[nParams++] = bInteger ? (FX_FLOAT)value : *(FX_FLOAT*)&value; - break; - } - default: - bProcessed = FALSE; - } - if (!bProcessed) { - m_pSyntax->SetPos(last_pos); - return; - } - } -} - -void PDF_ReplaceAbbr(CPDF_Object* pObj) { - switch (pObj->GetType()) { - case CPDF_Object::DICTIONARY: { - CPDF_Dictionary* pDict = pObj->AsDictionary(); - std::vector<AbbrReplacementOp> replacements; - for (const auto& it : *pDict) { - CFX_ByteString key = it.first; - CPDF_Object* value = it.second; - CFX_ByteStringC fullname = PDF_FindFullName( - PDF_InlineKeyAbbr, FX_ArraySize(PDF_InlineKeyAbbr), key); - if (!fullname.IsEmpty()) { - AbbrReplacementOp op; - op.is_replace_key = true; - op.key = key; - op.replacement = fullname; - replacements.push_back(op); - key = fullname; - } - - if (value->IsName()) { - CFX_ByteString name = value->GetString(); - fullname = PDF_FindFullName(PDF_InlineValueAbbr, - FX_ArraySize(PDF_InlineValueAbbr), name); - if (!fullname.IsEmpty()) { - AbbrReplacementOp op; - op.is_replace_key = false; - op.key = key; - op.replacement = fullname; - replacements.push_back(op); - } - } else { - PDF_ReplaceAbbr(value); - } - } - for (const auto& op : replacements) { - if (op.is_replace_key) - pDict->ReplaceKey(op.key, op.replacement); - else - pDict->SetAtName(op.key, op.replacement); - } - break; - } - case CPDF_Object::ARRAY: { - CPDF_Array* pArray = pObj->AsArray(); - for (FX_DWORD i = 0; i < pArray->GetCount(); i++) { - CPDF_Object* pElement = pArray->GetElement(i); - if (pElement->IsName()) { - CFX_ByteString name = pElement->GetString(); - CFX_ByteStringC fullname = PDF_FindFullName( - PDF_InlineValueAbbr, FX_ArraySize(PDF_InlineValueAbbr), name); - if (!fullname.IsEmpty()) { - pArray->SetAt(i, new CPDF_Name(fullname)); - } - } else { - PDF_ReplaceAbbr(pElement); - } - } - break; - } - default: - break; - } -} |