blob: 8d9bb0111984eda5c4b9c1be262a4dceea25b8a9 (
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
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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
// 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_FPDF_PARSER_INCLUDE_CPDF_OBJECT_H_
#define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_OBJECT_H_
#include <set>
#include "core/fxcrt/include/fx_string.h"
#include "core/fxcrt/include/fx_system.h"
class CPDF_Array;
class CPDF_Boolean;
class CPDF_Dictionary;
class CPDF_Name;
class CPDF_Null;
class CPDF_Number;
class CPDF_Reference;
class CPDF_Stream;
class CPDF_String;
class CPDF_Object {
public:
static const uint32_t kInvalidObjNum = static_cast<uint32_t>(-1);
enum Type {
BOOLEAN = 1,
NUMBER,
STRING,
NAME,
ARRAY,
DICTIONARY,
STREAM,
NULLOBJ,
REFERENCE
};
virtual Type GetType() const = 0;
uint32_t GetObjNum() const { return m_ObjNum; }
uint32_t GetGenNum() const { return m_GenNum; }
// Create a deep copy of the object.
virtual CPDF_Object* Clone() const = 0;
// Create a deep copy of the object except any reference object be
// copied to the object it points to directly.
virtual CPDF_Object* CloneDirectObject() const;
virtual CPDF_Object* GetDirect() const;
void Release();
virtual CFX_ByteString GetString() const;
virtual CFX_WideString GetUnicodeText() const;
virtual FX_FLOAT GetNumber() const;
virtual int GetInteger() const;
virtual CPDF_Dictionary* GetDict() const;
virtual void SetString(const CFX_ByteString& str);
virtual bool IsArray() const;
virtual bool IsBoolean() const;
virtual bool IsDictionary() const;
virtual bool IsName() const;
virtual bool IsNumber() const;
virtual bool IsReference() const;
virtual bool IsStream() const;
virtual bool IsString() const;
virtual CPDF_Array* AsArray();
virtual const CPDF_Array* AsArray() const;
virtual CPDF_Boolean* AsBoolean();
virtual const CPDF_Boolean* AsBoolean() const;
virtual CPDF_Dictionary* AsDictionary();
virtual const CPDF_Dictionary* AsDictionary() const;
virtual CPDF_Name* AsName();
virtual const CPDF_Name* AsName() const;
virtual CPDF_Number* AsNumber();
virtual const CPDF_Number* AsNumber() const;
virtual CPDF_Reference* AsReference();
virtual const CPDF_Reference* AsReference() const;
virtual CPDF_Stream* AsStream();
virtual const CPDF_Stream* AsStream() const;
virtual CPDF_String* AsString();
virtual const CPDF_String* AsString() const;
protected:
friend class CPDF_Array;
friend class CPDF_Dictionary;
friend class CPDF_Document;
friend class CPDF_IndirectObjectHolder;
friend class CPDF_Parser;
friend class CPDF_Reference;
friend class CPDF_Stream;
CPDF_Object() : m_ObjNum(0), m_GenNum(0) {}
virtual ~CPDF_Object();
void Destroy() { delete this; }
CPDF_Object* CloneObjectNonCyclic(bool bDirect) const;
// Create a deep copy of the object with the option to either
// copy a reference object or directly copy the object it refers to
// when |bDirect| is true.
// Also check cyclic reference against |pVisited|, no copy if it is found.
// Complex objects should implement their own CloneNonCyclic()
// function to properly check for possible loop.
virtual CPDF_Object* CloneNonCyclic(
bool bDirect,
std::set<const CPDF_Object*>* pVisited) const;
uint32_t m_ObjNum;
uint32_t m_GenNum;
private:
CPDF_Object(const CPDF_Object& src) {}
};
inline CPDF_Boolean* ToBoolean(CPDF_Object* obj) {
return obj ? obj->AsBoolean() : nullptr;
}
inline const CPDF_Boolean* ToBoolean(const CPDF_Object* obj) {
return obj ? obj->AsBoolean() : nullptr;
}
inline CPDF_Number* ToNumber(CPDF_Object* obj) {
return obj ? obj->AsNumber() : nullptr;
}
inline const CPDF_Number* ToNumber(const CPDF_Object* obj) {
return obj ? obj->AsNumber() : nullptr;
}
inline CPDF_String* ToString(CPDF_Object* obj) {
return obj ? obj->AsString() : nullptr;
}
inline const CPDF_String* ToString(const CPDF_Object* obj) {
return obj ? obj->AsString() : nullptr;
}
inline CPDF_Name* ToName(CPDF_Object* obj) {
return obj ? obj->AsName() : nullptr;
}
inline const CPDF_Name* ToName(const CPDF_Object* obj) {
return obj ? obj->AsName() : nullptr;
}
inline CPDF_Array* ToArray(CPDF_Object* obj) {
return obj ? obj->AsArray() : nullptr;
}
inline const CPDF_Array* ToArray(const CPDF_Object* obj) {
return obj ? obj->AsArray() : nullptr;
}
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 CPDF_Reference* ToReference(CPDF_Object* obj) {
return obj ? obj->AsReference() : nullptr;
}
inline const CPDF_Reference* ToReference(const CPDF_Object* obj) {
return obj ? obj->AsReference() : nullptr;
}
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;
}
#endif // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_OBJECT_H_
|
