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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_FPDFDOC_INCLUDE_CPDF_OCCONTEXT_H_ | |
8 #define CORE_FPDFDOC_INCLUDE_CPDF_OCCONTEXT_H_ | |
9 | |
10 #include <unordered_map> | |
11 | |
12 #include "core/fxcrt/include/fx_string.h" | |
13 | |
14 class CPDF_Array; | |
15 class CPDF_Dictionary; | |
16 class CPDF_Document; | |
17 class CPDF_PageObject; | |
18 | |
19 class CPDF_OCContext { | |
20 public: | |
21 enum UsageType { View = 0, Design, Print, Export }; | |
22 | |
23 CPDF_OCContext(CPDF_Document* pDoc, UsageType eUsageType); | |
24 ~CPDF_OCContext(); | |
25 | |
26 bool CheckOCGVisible(const CPDF_Dictionary* pOCGDict); | |
27 bool CheckObjectVisible(const CPDF_PageObject* pObj); | |
28 | |
29 private: | |
30 bool LoadOCGStateFromConfig(const CFX_ByteString& csConfig, | |
31 const CPDF_Dictionary* pOCGDict) const; | |
32 bool LoadOCGState(const CPDF_Dictionary* pOCGDict) const; | |
33 bool GetOCGVisible(const CPDF_Dictionary* pOCGDict); | |
34 bool GetOCGVE(CPDF_Array* pExpression, int nLevel); | |
35 bool LoadOCMDState(const CPDF_Dictionary* pOCMDDict); | |
36 | |
37 CPDF_Document* const m_pDocument; | |
38 const UsageType m_eUsageType; | |
39 std::unordered_map<const CPDF_Dictionary*, bool> m_OCGStates; | |
40 }; | |
41 | |
42 #endif // CORE_FPDFDOC_INCLUDE_CPDF_OCCONTEXT_H_ | |
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