1 /* 2 * FTGL - OpenGL font library 3 * 4 * Copyright (c) 2009 Sam Hocevar <sam@hocevar.net> 5 * 2009 Mathew Eis (kingrobot) 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining 8 * a copy of this software and associated documentation files (the 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sublicense, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be 16 * included in all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 21 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 22 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 */ 26 27 #ifndef __FTCleanup__ 28 #define __FTCleanup__ 29 30 #include <set> 31 32 #include "FTFace.h" 33 34 /** 35 * A dummy object type for items to be stored in the cleanup list 36 */ 37 typedef void* FTCleanupObject; 38 39 /** 40 * FTCleanup is used as a "callback" by FTLibrary to 41 * make sure things are cleaned up in the right order 42 */ 43 class FTCleanup 44 { 45 protected: 46 47 /** 48 * singleton instance 49 */ 50 static FTCleanup* _instance; 51 52 /** 53 * Constructors 54 */ 55 FTCleanup(); 56 57 /** 58 * Destructor 59 */ 60 ~FTCleanup(); 61 62 public: 63 64 /** 65 * Generate the instance if necessary and return it 66 * 67 * @return The FTCleanup instance 68 */ Instance()69 static FTCleanup* Instance() 70 { 71 if (FTCleanup::_instance == 0) 72 FTCleanup::_instance = new FTCleanup; 73 return FTCleanup::_instance; 74 } 75 76 /** 77 * Destroy the FTCleanup instance 78 */ DestroyAll()79 static void DestroyAll() 80 { 81 delete FTCleanup::_instance; 82 } 83 84 /** 85 * Add an FT_Face to the cleanup list 86 * 87 * @param obj The reference to the FT_Face to be deleted on cleanup 88 */ 89 void RegisterObject(FT_Face **obj); 90 91 /** 92 * Remove an FT_Face from the cleanup list 93 * 94 * @param obj The reference to the FT_Face to be removed from the list 95 */ 96 void UnregisterObject(FT_Face **obj); 97 98 private: 99 100 std::set<FT_Face **> cleanupFT_FaceItems; 101 }; 102 103 #endif // __FTCleanup__ 104 105