kstaticdeleter.h
00001 /* 00002 * This file is part of the KDE Libraries 00003 * Copyright (C) 2000 Stephan Kulow <coolo@kde.org> 00004 * 2001 KDE Team 00005 * 00006 * This library is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Library General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2 of the License, or (at your option) any later version. 00010 * 00011 * This library is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Library General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Library General Public License 00017 * along with this library; see the file COPYING.LIB. If not, write to 00018 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 00019 * Boston, MA 02111-1307, USA. 00020 * 00021 */ 00022 00023 #ifndef _KSTATIC_DELETER_H_ 00024 #define _KSTATIC_DELETER_H_ 00025 00026 #include <kglobal.h> 00027 00039 class KStaticDeleterBase { 00040 public: 00041 virtual ~KStaticDeleterBase() { } 00047 virtual void destructObject(); 00048 }; 00049 00065 template<class type> class KStaticDeleter : public KStaticDeleterBase { 00066 public: 00067 KStaticDeleter() { deleteit = 0; globalReference = 0; array = false; } 00075 type *setObject( type *obj, bool isArray = false) { 00076 deleteit = obj; 00077 globalReference = 0; 00078 array = isArray; 00079 if (obj) 00080 KGlobal::registerStaticDeleter(this); 00081 else 00082 KGlobal::unregisterStaticDeleter(this); 00083 return obj; 00084 } 00093 type *setObject( type* & globalRef, type *obj, bool isArray = false) { 00094 globalReference = &globalRef; 00095 deleteit = obj; 00096 array = isArray; 00097 if (obj) 00098 KGlobal::registerStaticDeleter(this); 00099 else 00100 KGlobal::unregisterStaticDeleter(this); 00101 globalRef = obj; 00102 return obj; 00103 } 00104 00109 virtual void destructObject() { 00110 if (globalReference) 00111 *globalReference = 0; 00112 if (array) 00113 delete [] deleteit; 00114 else 00115 delete deleteit; 00116 deleteit = 0; 00117 } 00118 virtual ~KStaticDeleter() { 00119 KGlobal::unregisterStaticDeleter(this); 00120 destructObject(); 00121 } 00122 private: 00123 type *deleteit; 00124 type **globalReference; 00125 bool array; 00126 }; 00127 00128 #endif