1 //------------------------------------------------------------------------------ 2 // Copyright (c) 2001-2002, OpenBeOS 3 // 4 // Permission is hereby granted, free of charge, to any person obtaining a 5 // copy of this software and associated documentation files (the "Software"), 6 // to deal in the Software without restriction, including without limitation 7 // the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 // and/or sell copies of the Software, and to permit persons to whom the 9 // Software is furnished to do so, subject to the following conditions: 10 // 11 // The above copyright notice and this permission notice shall be included in 12 // all copies or substantial portions of the Software. 13 // 14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 20 // DEALINGS IN THE SOFTWARE. 21 // 22 // File Name: AppInfoList.h 23 // Author: Ingo Weinhold (bonefish@users.sf.net) 24 // Description: A helper class for TRoster. A list of RosterAppInfos. 25 //------------------------------------------------------------------------------ 26 27 #ifndef APP_INFO_LIST_H 28 #define APP_INFO_LIST_H 29 30 #include <List.h> 31 #include <OS.h> 32 33 struct entry_ref; 34 35 struct RosterAppInfo; 36 37 // AppInfoList 38 class AppInfoList { 39 public: 40 class Iterator; 41 42 public: 43 AppInfoList(); 44 virtual ~AppInfoList(); 45 46 bool AddInfo(RosterAppInfo *info); 47 bool RemoveInfo(RosterAppInfo *info); 48 void MakeEmpty(bool deleteInfos = false); 49 50 RosterAppInfo *InfoFor(const char *signature) const; 51 RosterAppInfo *InfoFor(team_id team) const; 52 RosterAppInfo *InfoFor(const entry_ref *ref) const; 53 RosterAppInfo *InfoForToken(uint32 token) const; 54 55 bool IsEmpty() const { return (CountInfos() == 0); }; 56 int32 CountInfos() const; 57 58 Iterator It(); 59 60 void Sort(bool (*lessFunc)(const RosterAppInfo *, const RosterAppInfo *)); 61 62 private: 63 RosterAppInfo *RemoveInfo(int32 index); 64 65 RosterAppInfo *InfoAt(int32 index) const; 66 67 int32 IndexOf(RosterAppInfo *info) const; 68 int32 IndexOf(const char *signature) const; 69 int32 IndexOf(team_id team) const; 70 int32 IndexOf(const entry_ref *ref) const; 71 int32 IndexOfToken(uint32 token) const; 72 73 private: 74 friend class Iterator; 75 76 private: 77 BList fInfos; 78 }; 79 80 // AppInfoList::Iterator 81 class AppInfoList::Iterator { 82 public: 83 inline Iterator(const Iterator &it) 84 : fList(it.fList), 85 fIndex(it.fIndex), 86 fCount(it.fCount) 87 { 88 } 89 90 inline ~Iterator() {} 91 92 inline bool IsValid() const 93 { 94 return (fIndex >= 0 && fIndex < fCount); 95 } 96 97 inline RosterAppInfo *Remove() 98 { 99 RosterAppInfo *info = fList->RemoveInfo(fIndex); 100 if (info) 101 fCount--; 102 return info; 103 } 104 105 inline Iterator &operator=(const Iterator &it) 106 { 107 fList = it.fList; 108 fIndex = it.fIndex; 109 fCount = it.fCount; 110 return *this; 111 } 112 113 inline Iterator &operator++() 114 { 115 fIndex++; 116 return *this; 117 } 118 119 inline Iterator operator++(int) 120 { 121 return Iterator(fList, fIndex + 1); 122 } 123 124 inline Iterator &operator--() 125 { 126 fIndex--; 127 return *this; 128 } 129 130 inline Iterator operator--(int) 131 { 132 return Iterator(fList, fIndex - 1); 133 } 134 135 inline bool operator==(const Iterator &it) const 136 { 137 return (fList == it.fList && fIndex == it.fIndex); 138 } 139 140 inline bool operator!=(const Iterator &it) const 141 { 142 return !(*this == it); 143 } 144 145 inline RosterAppInfo *operator*() const 146 { 147 return fList->InfoAt(fIndex); 148 } 149 150 private: 151 friend class AppInfoList; 152 153 private: 154 inline Iterator(AppInfoList *list, int32 index = 0) 155 : fList(list), 156 fIndex(index), 157 fCount(list->CountInfos()) 158 { 159 } 160 161 private: 162 AppInfoList *fList; 163 int32 fIndex; 164 int32 fCount; 165 }; 166 167 #endif // APP_INFO_LIST_H 168