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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
// 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_DICTIONARY_H_
#define CORE_FPDFAPI_PARSER_CPDF_DICTIONARY_H_
#include <map>
#include <memory>
#include <set>
#include <utility>
#include "core/fpdfapi/parser/cpdf_object.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/string_pool_template.h"
#include "core/fxcrt/weak_ptr.h"
#include "third_party/base/ptr_util.h"
class CPDF_IndirectObjectHolder;
class CPDF_Dictionary : public CPDF_Object {
public:
using const_iterator =
std::map<ByteString, std::unique_ptr<CPDF_Object>>::const_iterator;
CPDF_Dictionary();
explicit CPDF_Dictionary(const WeakPtr<ByteStringPool>& pPool);
~CPDF_Dictionary() override;
// CPDF_Object:
Type GetType() const override;
std::unique_ptr<CPDF_Object> Clone() const override;
CPDF_Dictionary* GetDict() override;
const CPDF_Dictionary* GetDict() const override;
bool IsDictionary() const override;
CPDF_Dictionary* AsDictionary() override;
const CPDF_Dictionary* AsDictionary() const override;
bool WriteTo(IFX_ArchiveStream* archive,
const CPDF_Encryptor* encryptor) const override;
size_t GetCount() const { return m_Map.size(); }
const CPDF_Object* GetObjectFor(const ByteString& key) const;
CPDF_Object* GetObjectFor(const ByteString& key);
const CPDF_Object* GetDirectObjectFor(const ByteString& key) const;
CPDF_Object* GetDirectObjectFor(const ByteString& key);
ByteString GetStringFor(const ByteString& key) const;
ByteString GetStringFor(const ByteString& key,
const ByteString& default_str) const;
WideString GetUnicodeTextFor(const ByteString& key) const;
int GetIntegerFor(const ByteString& key) const;
int GetIntegerFor(const ByteString& key, int default_int) const;
bool GetBooleanFor(const ByteString& key, bool bDefault = false) const;
float GetNumberFor(const ByteString& key) const;
const CPDF_Dictionary* GetDictFor(const ByteString& key) const;
CPDF_Dictionary* GetDictFor(const ByteString& key);
const CPDF_Stream* GetStreamFor(const ByteString& key) const;
CPDF_Stream* GetStreamFor(const ByteString& key);
const CPDF_Array* GetArrayFor(const ByteString& key) const;
CPDF_Array* GetArrayFor(const ByteString& key);
CFX_FloatRect GetRectFor(const ByteString& key) const;
CFX_Matrix GetMatrixFor(const ByteString& key) const;
float GetFloatFor(const ByteString& key) const { return GetNumberFor(key); }
bool KeyExist(const ByteString& key) const;
bool IsSignatureDict() const;
// Set* functions invalidate iterators for the element with the key |key|.
// Takes ownership of |pObj|, returns an unowned pointer to it.
CPDF_Object* SetFor(const ByteString& key, std::unique_ptr<CPDF_Object> pObj);
// Creates a new object owned by the dictionary and returns an unowned
// pointer to it.
template <typename T, typename... Args>
typename std::enable_if<!CanInternStrings<T>::value, T*>::type SetNewFor(
const ByteString& key,
Args&&... args) {
return static_cast<T*>(
SetFor(key, pdfium::MakeUnique<T>(std::forward<Args>(args)...)));
}
template <typename T, typename... Args>
typename std::enable_if<CanInternStrings<T>::value, T*>::type SetNewFor(
const ByteString& key,
Args&&... args) {
return static_cast<T*>(SetFor(
key, pdfium::MakeUnique<T>(m_pPool, std::forward<Args>(args)...)));
}
// Convenience functions to convert native objects to array form.
void SetRectFor(const ByteString& key, const CFX_FloatRect& rect);
void SetMatrixFor(const ByteString& key, const CFX_Matrix& matrix);
void ConvertToIndirectObjectFor(const ByteString& key,
CPDF_IndirectObjectHolder* pHolder);
// Invalidates iterators for the element with the key |key|.
std::unique_ptr<CPDF_Object> RemoveFor(const ByteString& key);
// Invalidates iterators for the element with the key |oldkey|.
void ReplaceKey(const ByteString& oldkey, const ByteString& newkey);
const_iterator begin() const { return m_Map.begin(); }
const_iterator end() const { return m_Map.end(); }
WeakPtr<ByteStringPool> GetByteStringPool() const { return m_pPool; }
protected:
ByteString MaybeIntern(const ByteString& str);
std::unique_ptr<CPDF_Object> CloneNonCyclic(
bool bDirect,
std::set<const CPDF_Object*>* visited) const override;
WeakPtr<ByteStringPool> m_pPool;
std::map<ByteString, std::unique_ptr<CPDF_Object>> m_Map;
};
inline CPDF_Dictionary* ToDictionary(CPDF_Object* obj) {
return obj ? obj->AsDictionary() : nullptr;
}
inline const CPDF_Dictionary* ToDictionary(const CPDF_Object* obj) {
return obj ? obj->AsDictionary() : nullptr;
}
inline std::unique_ptr<CPDF_Dictionary> ToDictionary(
std::unique_ptr<CPDF_Object> obj) {
CPDF_Dictionary* pDict = ToDictionary(obj.get());
if (!pDict)
return nullptr;
obj.release();
return std::unique_ptr<CPDF_Dictionary>(pDict);
}
#endif // CORE_FPDFAPI_PARSER_CPDF_DICTIONARY_H_
|
