1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef CORE_FPDFAPI_EDIT_EDITINT_H_ 8 #define CORE_FPDFAPI_EDIT_EDITINT_H_ 9 10 #include <vector> 11 12 #include "core/fxcrt/fx_basic.h" 13 #include "core/fxcrt/fx_stream.h" 14 #include "core/fxcrt/fx_system.h" 15 16 class CPDF_Creator; 17 class CPDF_Object; 18 19 class CPDF_ObjectStream { 20 public: 21 struct Item { 22 uint32_t objnum; 23 FX_STRSIZE offset; 24 }; 25 26 CPDF_ObjectStream(); 27 ~CPDF_ObjectStream(); 28 29 void Start(); 30 FX_FILESIZE End(CPDF_Creator* pCreator); 31 void CompressIndirectObject(uint32_t dwObjNum, const CPDF_Object* pObj); 32 void CompressIndirectObject(uint32_t dwObjNum, 33 const uint8_t* pBuffer, 34 uint32_t dwSize); 35 36 std::vector<Item> m_Items; 37 CFX_ByteTextBuf m_Buffer; 38 uint32_t m_dwObjNum; 39 int32_t m_index; 40 }; 41 42 class CPDF_XRefStream { 43 public: 44 struct Index { 45 uint32_t objnum; 46 uint32_t count; 47 }; 48 49 CPDF_XRefStream(); 50 ~CPDF_XRefStream(); 51 52 bool Start(); 53 int32_t CompressIndirectObject(uint32_t dwObjNum, 54 const CPDF_Object* pObj, 55 CPDF_Creator* pCreator); 56 int32_t CompressIndirectObject(uint32_t dwObjNum, 57 const uint8_t* pBuffer, 58 uint32_t dwSize, 59 CPDF_Creator* pCreator); 60 bool End(CPDF_Creator* pCreator, bool bEOF = false); 61 void AddObjectNumberToIndexArray(uint32_t objnum); 62 bool EndXRefStream(CPDF_Creator* pCreator); 63 64 std::vector<Index> m_IndexArray; 65 FX_FILESIZE m_PrevOffset; 66 uint32_t m_dwTempObjNum; 67 68 protected: 69 int32_t EndObjectStream(CPDF_Creator* pCreator, bool bEOF = true); 70 bool GenerateXRefStream(CPDF_Creator* pCreator, bool bEOF); 71 72 size_t m_iSeg; 73 CPDF_ObjectStream m_ObjStream; 74 CFX_ByteTextBuf m_Buffer; 75 }; 76 77 #endif // CORE_FPDFAPI_EDIT_EDITINT_H_ 78
