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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
/*
* Copyright (c) 2021-2022, Matthew Olsson <mattco@serenityos.org>
* Copyright (c) 2021, Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/DeprecatedFlyString.h>
#include <AK/HashMap.h>
#include <AK/RefCounted.h>
#include <AK/SourceLocation.h>
#include <LibPDF/Forward.h>
#include <LibPDF/Object.h>
#include <LibPDF/Value.h>
namespace PDF {
class StringObject final : public Object {
public:
StringObject(DeprecatedString string, bool is_binary)
: m_string(move(string))
, m_is_binary(is_binary)
{
}
~StringObject() override = default;
[[nodiscard]] ALWAYS_INLINE DeprecatedString const& string() const { return m_string; }
[[nodiscard]] ALWAYS_INLINE bool is_binary() const { return m_is_binary; }
void set_string(DeprecatedString string) { m_string = move(string); }
char const* type_name() const override { return "string"; }
DeprecatedString to_deprecated_string(int indent) const override;
protected:
bool is_string() const override { return true; }
private:
DeprecatedString m_string;
bool m_is_binary;
};
class NameObject final : public Object {
public:
explicit NameObject(DeprecatedFlyString name)
: m_name(move(name))
{
}
~NameObject() override = default;
[[nodiscard]] ALWAYS_INLINE DeprecatedFlyString const& name() const { return m_name; }
char const* type_name() const override { return "name"; }
DeprecatedString to_deprecated_string(int indent) const override;
protected:
bool is_name() const override { return true; }
private:
DeprecatedFlyString m_name;
};
class ArrayObject final : public Object {
public:
explicit ArrayObject(Vector<Value> elements)
: m_elements(move(elements))
{
}
~ArrayObject() override = default;
[[nodiscard]] ALWAYS_INLINE size_t size() const { return m_elements.size(); }
[[nodiscard]] ALWAYS_INLINE Vector<Value> elements() const { return m_elements; }
[[nodiscard]] Vector<float> float_elements() const;
ALWAYS_INLINE auto begin() const { return m_elements.begin(); }
ALWAYS_INLINE auto end() const { return m_elements.end(); }
ALWAYS_INLINE Value const& operator[](size_t index) const { return at(index); }
ALWAYS_INLINE Value const& at(size_t index) const { return m_elements[index]; }
PDFErrorOr<NonnullRefPtr<Object>> get_object_at(Document* document, size_t index) const;
NonnullRefPtr<Object> get_object_at(size_t index) const { return at(index).get<NonnullRefPtr<Object>>(); };
#define DEFINE_INDEXER(class_name, snake_name) \
PDFErrorOr<NonnullRefPtr<class_name>> get_##snake_name##_at(Document*, size_t index) const; \
NonnullRefPtr<class_name> get_##snake_name##_at(size_t index) const;
ENUMERATE_OBJECT_TYPES(DEFINE_INDEXER)
#undef DEFINE_INDEXER
char const* type_name() const override
{
return "array";
}
DeprecatedString to_deprecated_string(int indent) const override;
protected:
bool is_array() const override { return true; }
private:
Vector<Value> m_elements;
};
class DictObject final : public Object {
public:
explicit DictObject(HashMap<DeprecatedFlyString, Value> map)
: m_map(move(map))
{
}
~DictObject() override = default;
[[nodiscard]] ALWAYS_INLINE HashMap<DeprecatedFlyString, Value> const& map() const { return m_map; }
template<typename... Args>
bool contains(Args&&... keys) const { return (m_map.contains(keys) && ...); }
template<typename... Args>
bool contains_any_of(Args&&... keys) const { return (m_map.contains(keys) || ...); }
ALWAYS_INLINE Optional<Value> get(DeprecatedFlyString const& key) const { return m_map.get(key); }
Value get_value(DeprecatedFlyString const& key) const
{
auto value = get(key);
VERIFY(value.has_value());
return value.value();
}
PDFErrorOr<NonnullRefPtr<Object>> get_object(Document*, DeprecatedFlyString const& key) const;
#define DEFINE_GETTER(class_name, snake_name) \
PDFErrorOr<NonnullRefPtr<class_name>> get_##snake_name(Document*, DeprecatedFlyString const& key) const; \
NonnullRefPtr<class_name> get_##snake_name(DeprecatedFlyString const& key) const;
ENUMERATE_OBJECT_TYPES(DEFINE_GETTER)
#undef DEFINE_GETTER
char const* type_name() const override
{
return "dict";
}
DeprecatedString to_deprecated_string(int indent) const override;
protected:
bool is_dict() const override { return true; }
private:
HashMap<DeprecatedFlyString, Value> m_map;
};
class StreamObject : public Object {
public:
explicit StreamObject(NonnullRefPtr<DictObject> const& dict, ByteBuffer const& bytes)
: m_dict(dict)
, m_buffer(bytes)
{
}
virtual ~StreamObject() override = default;
[[nodiscard]] ALWAYS_INLINE NonnullRefPtr<DictObject> dict() const { return m_dict; }
[[nodiscard]] ReadonlyBytes bytes() const { return m_buffer.bytes(); };
[[nodiscard]] ByteBuffer& buffer() { return m_buffer; };
char const* type_name() const override { return "stream"; }
DeprecatedString to_deprecated_string(int indent) const override;
private:
bool is_stream() const override { return true; }
NonnullRefPtr<DictObject> m_dict;
ByteBuffer m_buffer;
};
class IndirectValue final : public Object {
public:
IndirectValue(u32 index, u32 generation_index, Value const& value)
: m_index(index)
, m_value(value)
{
set_generation_index(generation_index);
}
~IndirectValue() override = default;
[[nodiscard]] ALWAYS_INLINE u32 index() const { return m_index; }
[[nodiscard]] ALWAYS_INLINE Value const& value() const { return m_value; }
char const* type_name() const override { return "indirect_object"; }
DeprecatedString to_deprecated_string(int indent) const override;
protected:
bool is_indirect_value() const override { return true; }
private:
u32 m_index;
Value m_value;
};
template<IsValueType T>
UnwrappedValueType<T> cast_to(Value const& value)
{
if constexpr (IsSame<T, bool>)
return value.get<bool>();
else if constexpr (IsSame<T, int>)
return value.get<int>();
else if constexpr (IsSame<T, float>)
return value.get<float>();
else if constexpr (IsSame<T, Object>)
return value.get<NonnullRefPtr<Object>>();
else if constexpr (IsObject<T>)
return value.get<NonnullRefPtr<Object>>()->cast<T>();
VERIFY_NOT_REACHED();
}
}
|
