kio Library API Documentation

dptrtemplate.h

00001 // -*- c-basic-offset:4; indent-tabs-mode:nil -*- 00002 // vim: set ts=4 sts=4 sw=4 et: 00003 /* This file is part of the KDE project 00004 Copyright (C) 2003 Alexander Kellett <lypanov@kde.org> 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 #ifndef __dptrtemplate_h__ 00023 #define __dptrtemplate_h__ 00024 00025 #include <qptrdict.h> 00026 00027 template<class Instance, class PrivateData> 00028 class dPtrTemplate { 00029 public: 00030 static PrivateData* d( const Instance* instance ) 00031 { 00032 if ( !d_ptr ) { 00033 cleanup_d_ptr(); 00034 d_ptr = new QPtrDict<PrivateData>; 00035 qAddPostRoutine( cleanup_d_ptr ); 00036 } 00037 PrivateData* ret = d_ptr->find( (void*) instance ); 00038 if ( ! ret ) { 00039 ret = new PrivateData; 00040 d_ptr->replace( (void*) instance, ret ); 00041 } 00042 return ret; 00043 } 00044 static void delete_d( const Instance* instance ) 00045 { 00046 if ( d_ptr ) 00047 d_ptr->remove( (void*) instance ); 00048 } 00049 private: 00050 static void cleanup_d_ptr() 00051 { 00052 delete d_ptr; 00053 } 00054 static QPtrDict<PrivateData>* d_ptr; 00055 }; 00056 00057 #endif
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This file is part of the documentation for kio Library Version 3.2.3.
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