1 // Copyright 2016 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_PAGE_CPDF_CONTENTPARSER_H_ 8 #define CORE_FPDFAPI_PAGE_CPDF_CONTENTPARSER_H_ 9 10 #include <memory> 11 #include <vector> 12 13 #include "core/fpdfapi/page/cpdf_pageobjectholder.h" 14 #include "core/fpdfapi/page/cpdf_streamcontentparser.h" 15 16 class CPDF_AllStates; 17 class CPDF_Form; 18 class CPDF_Page; 19 class CPDF_StreamAcc; 20 class CPDF_Type3Char; 21 22 class CPDF_ContentParser { 23 public: 24 enum ParseStatus { Ready, ToBeContinued, Done }; 25 26 CPDF_ContentParser(); 27 ~CPDF_ContentParser(); 28 29 ParseStatus GetStatus() const { return m_Status; } 30 void Start(CPDF_Page* pPage); 31 void Start(CPDF_Form* pForm, 32 CPDF_AllStates* pGraphicStates, 33 const CFX_Matrix* pParentMatrix, 34 CPDF_Type3Char* pType3Char, 35 int level); 36 void Continue(IFX_Pause* pPause); 37 38 private: 39 enum InternalStage { 40 STAGE_GETCONTENT = 1, 41 STAGE_PARSE, 42 STAGE_CHECKCLIP, 43 }; 44 45 ParseStatus m_Status; 46 InternalStage m_InternalStage; 47 CPDF_PageObjectHolder* m_pObjectHolder; 48 bool m_bForm; 49 CPDF_Type3Char* m_pType3Char; 50 uint32_t m_nStreams; 51 std::unique_ptr<CPDF_StreamAcc> m_pSingleStream; 52 std::vector<std::unique_ptr<CPDF_StreamAcc>> m_StreamArray; 53 uint8_t* m_pData; 54 uint32_t m_Size; 55 uint32_t m_CurrentOffset; 56 std::unique_ptr<CPDF_StreamContentParser> m_pParser; 57 }; 58 59 #endif // CORE_FPDFAPI_PAGE_CPDF_CONTENTPARSER_H_ 60
