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
|
// 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() const override;
bool IsDictionary() const override;
CPDF_Dictionary* AsDictionary() override;
const CPDF_Dictionary* AsDictionary() const override;
bool WriteTo(IFX_ArchiveStream* archive) const override;
size_t GetCount() const { return m_Map.size(); }
CPDF_Object* GetObjectFor(const ByteString& key) const;
CPDF_Object* GetDirectObjectFor(const ByteString& key) const;
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;
CPDF_Dictionary* GetDictFor(const ByteString& key) const;
CPDF_Stream* GetStreamFor(const ByteString& key) const;
CPDF_Array* GetArrayFor(const ByteString& key) const;
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_
|
