You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
1.4 KiB
46 lines
1.4 KiB
// Copyright 2016 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 |
|
|
|
#ifndef CORE_FPDFDOC_CPDF_OCCONTEXT_H_ |
|
#define CORE_FPDFDOC_CPDF_OCCONTEXT_H_ |
|
|
|
#include <unordered_map> |
|
|
|
#include "core/fxcrt/cfx_retain_ptr.h" |
|
#include "core/fxcrt/fx_string.h" |
|
|
|
class CPDF_Array; |
|
class CPDF_Dictionary; |
|
class CPDF_Document; |
|
class CPDF_PageObject; |
|
|
|
class CPDF_OCContext : public CFX_Retainable { |
|
public: |
|
template <typename T, typename... Args> |
|
friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args); |
|
|
|
enum UsageType { View = 0, Design, Print, Export }; |
|
|
|
bool CheckOCGVisible(const CPDF_Dictionary* pOCGDict); |
|
bool CheckObjectVisible(const CPDF_PageObject* pObj); |
|
|
|
private: |
|
CPDF_OCContext(CPDF_Document* pDoc, UsageType eUsageType); |
|
~CPDF_OCContext() override; |
|
|
|
bool LoadOCGStateFromConfig(const CFX_ByteString& csConfig, |
|
const CPDF_Dictionary* pOCGDict) const; |
|
bool LoadOCGState(const CPDF_Dictionary* pOCGDict) const; |
|
bool GetOCGVisible(const CPDF_Dictionary* pOCGDict); |
|
bool GetOCGVE(CPDF_Array* pExpression, int nLevel); |
|
bool LoadOCMDState(const CPDF_Dictionary* pOCMDDict); |
|
|
|
CPDF_Document* const m_pDocument; |
|
const UsageType m_eUsageType; |
|
std::unordered_map<const CPDF_Dictionary*, bool> m_OCGStates; |
|
}; |
|
|
|
#endif // CORE_FPDFDOC_CPDF_OCCONTEXT_H_
|
|
|