blob: cd4113b22b6cd31697116d8b9f69c43c66a7fc93 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
// 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_FPDFAPI_PARSER_CPDF_STREAM_H_
#define CORE_FPDFAPI_PARSER_CPDF_STREAM_H_
#include <memory>
#include <set>
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_object.h"
#include "core/fxcrt/fx_basic.h"
class CPDF_Stream : public CPDF_Object {
public:
CPDF_Stream();
// Takes ownership of |pData|.
CPDF_Stream(uint8_t* pData,
uint32_t size,
std::unique_ptr<CPDF_Dictionary> pDict);
~CPDF_Stream() override;
// CPDF_Object:
Type GetType() const override;
std::unique_ptr<CPDF_Object> Clone() const override;
CPDF_Dictionary* GetDict() const override;
CFX_WideString GetUnicodeText() const override;
bool IsStream() const override;
CPDF_Stream* AsStream() override;
const CPDF_Stream* AsStream() const override;
uint32_t GetRawSize() const { return m_dwSize; }
uint8_t* GetRawData() const { return m_pDataBuf.get(); }
// Does not takes onwership of |pData|, copies into internally-owned buffer.
void SetData(const uint8_t* pData, uint32_t size);
void InitStream(const uint8_t* pData,
uint32_t size,
std::unique_ptr<CPDF_Dictionary> pDict);
void InitStreamFromFile(const CFX_RetainPtr<IFX_SeekableReadStream>& pFile,
std::unique_ptr<CPDF_Dictionary> pDict);
bool ReadRawData(FX_FILESIZE start_pos,
uint8_t* pBuf,
uint32_t buf_size) const;
bool IsMemoryBased() const { return m_bMemoryBased; }
bool HasFilter() const;
protected:
std::unique_ptr<CPDF_Object> CloneNonCyclic(
bool bDirect,
std::set<const CPDF_Object*>* pVisited) const override;
bool m_bMemoryBased = true;
uint32_t m_dwSize = 0;
std::unique_ptr<CPDF_Dictionary> m_pDict;
std::unique_ptr<uint8_t, FxFreeDeleter> m_pDataBuf;
CFX_RetainPtr<IFX_SeekableReadStream> m_pFile;
};
inline CPDF_Stream* ToStream(CPDF_Object* obj) {
return obj ? obj->AsStream() : nullptr;
}
inline const CPDF_Stream* ToStream(const CPDF_Object* obj) {
return obj ? obj->AsStream() : nullptr;
}
inline std::unique_ptr<CPDF_Stream> ToStream(std::unique_ptr<CPDF_Object> obj) {
CPDF_Stream* pStream = ToStream(obj.get());
if (!pStream)
return nullptr;
obj.release();
return std::unique_ptr<CPDF_Stream>(pStream);
}
#endif // CORE_FPDFAPI_PARSER_CPDF_STREAM_H_
|
