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1 // Copyright 2014 PDFium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
6 | |
7 #ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_LIST_H_ | |
8 #define CORE_SRC_FXCODEC_JBIG2_JBIG2_LIST_H_ | |
9 | |
10 #include <stdlib.h> | |
11 | |
12 #include <vector> | |
13 | |
14 // A poor man's ScopedVector for pointers of TYPE. | |
15 // Owns all the pointers contained within and deletes them on destruction. | |
16 template <class TYPE> | |
17 class CJBig2_List { | |
18 public: | |
19 CJBig2_List() {} | |
20 explicit CJBig2_List(size_t count) { resize(count); } | |
21 | |
22 ~CJBig2_List() { | |
23 clear(); | |
24 } | |
25 | |
26 TYPE* get(size_t index) const { return m_vector[index]; } | |
27 TYPE* back() const { return m_vector.back(); } | |
28 size_t size() const { return m_vector.size(); } | |
29 | |
30 // Deletes all the pointers contained within. | |
31 void clear() { | |
32 for (size_t i = 0; i < m_vector.size(); ++i) | |
33 delete m_vector[i]; | |
34 m_vector.clear(); | |
35 } | |
36 | |
37 // Takes ownership of |pItem|. | |
38 void push_back(TYPE* pItem) { m_vector.push_back(pItem); } | |
39 | |
40 // Takes ownership of |pItem|. | |
41 void set(size_t index, TYPE* pItem) { | |
42 delete m_vector[index]; | |
43 m_vector[index] = pItem; | |
44 } | |
45 | |
46 void resize(size_t count) { | |
47 for (size_t i = count; i < size(); ++i) | |
48 delete m_vector[i]; | |
49 m_vector.resize(count); | |
50 } | |
51 | |
52 private: | |
53 std::vector<TYPE*> m_vector; | |
54 }; | |
55 | |
56 #endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_LIST_H_ | |
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