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_ 57
