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
|
// 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_ARRAY_H_
#define CORE_FPDFAPI_PARSER_CPDF_ARRAY_H_
#include <memory>
#include <set>
#include <type_traits>
#include <utility>
#include <vector>
#include "core/fpdfapi/parser/cpdf_indirect_object_holder.h"
#include "core/fpdfapi/parser/cpdf_object.h"
#include "core/fxcrt/fx_basic.h"
#include "core/fxcrt/fx_coordinates.h"
#include "third_party/base/ptr_util.h"
class CPDF_Array : public CPDF_Object {
public:
using const_iterator =
std::vector<std::unique_ptr<CPDF_Object>>::const_iterator;
CPDF_Array();
explicit CPDF_Array(const CFX_WeakPtr<CFX_ByteStringPool>& pPool);
~CPDF_Array() override;
// CPDF_Object:
Type GetType() const override;
std::unique_ptr<CPDF_Object> Clone() const override;
bool IsArray() const override;
CPDF_Array* AsArray() override;
const CPDF_Array* AsArray() const override;
bool IsEmpty() const { return m_Objects.empty(); }
size_t GetCount() const { return m_Objects.size(); }
CPDF_Object* GetObjectAt(size_t index) const;
CPDF_Object* GetDirectObjectAt(size_t index) const;
CFX_ByteString GetStringAt(size_t index) const;
int GetIntegerAt(size_t index) const;
FX_FLOAT GetNumberAt(size_t index) const;
CPDF_Dictionary* GetDictAt(size_t index) const;
CPDF_Stream* GetStreamAt(size_t index) const;
CPDF_Array* GetArrayAt(size_t index) const;
FX_FLOAT GetFloatAt(size_t index) const { return GetNumberAt(index); }
CFX_Matrix GetMatrix();
CFX_FloatRect GetRect();
// Takes ownership of |pObj|, returns unowned pointer to it.
CPDF_Object* Add(std::unique_ptr<CPDF_Object> pObj);
CPDF_Object* SetAt(size_t index, std::unique_ptr<CPDF_Object> pObj);
CPDF_Object* InsertAt(size_t index, std::unique_ptr<CPDF_Object> pObj);
// Creates object owned by the array, returns unowned pointer to it.
// We have special cases for objects that can intern strings from
// a ByteStringPool.
template <typename T, typename... Args>
typename std::enable_if<!CanInternStrings<T>::value, T*>::type AddNew(
Args&&... args) {
return static_cast<T*>(
Add(pdfium::MakeUnique<T>(std::forward<Args>(args)...)));
}
template <typename T, typename... Args>
typename std::enable_if<CanInternStrings<T>::value, T*>::type AddNew(
Args&&... args) {
return static_cast<T*>(
Add(pdfium::MakeUnique<T>(m_pPool, std::forward<Args>(args)...)));
}
template <typename T, typename... Args>
typename std::enable_if<!CanInternStrings<T>::value, T*>::type SetNewAt(
size_t index,
Args&&... args) {
return static_cast<T*>(
SetAt(index, pdfium::MakeUnique<T>(std::forward<Args>(args)...)));
}
template <typename T, typename... Args>
typename std::enable_if<CanInternStrings<T>::value, T*>::type SetNewAt(
size_t index,
Args&&... args) {
return static_cast<T*>(SetAt(
index, pdfium::MakeUnique<T>(m_pPool, std::forward<Args>(args)...)));
}
template <typename T, typename... Args>
typename std::enable_if<!CanInternStrings<T>::value, T*>::type InsertNewAt(
size_t index,
Args&&... args) {
return static_cast<T*>(
InsertAt(index, pdfium::MakeUnique<T>(std::forward<Args>(args)...)));
}
template <typename T, typename... Args>
typename std::enable_if<CanInternStrings<T>::value, T*>::type InsertNewAt(
size_t index,
Args&&... args) {
return static_cast<T*>(InsertAt(
index, pdfium::MakeUnique<T>(m_pPool, std::forward<Args>(args)...)));
}
void RemoveAt(size_t index, size_t nCount = 1);
void ConvertToIndirectObjectAt(size_t index, CPDF_IndirectObjectHolder* pDoc);
const_iterator begin() const { return m_Objects.begin(); }
const_iterator end() const { return m_Objects.end(); }
protected:
std::unique_ptr<CPDF_Object> CloneNonCyclic(
bool bDirect,
std::set<const CPDF_Object*>* pVisited) const override;
std::vector<std::unique_ptr<CPDF_Object>> m_Objects;
CFX_WeakPtr<CFX_ByteStringPool> m_pPool;
};
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 std::unique_ptr<CPDF_Array> ToArray(std::unique_ptr<CPDF_Object> obj) {
CPDF_Array* pArray = ToArray(obj.get());
if (!pArray)
return nullptr;
obj.release();
return std::unique_ptr<CPDF_Array>(pArray);
}
#endif // CORE_FPDFAPI_PARSER_CPDF_ARRAY_H_
|
