KDECore

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., 51 Franklin Street, Fifth Floor,
00019  * Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef _KSTATIC_DELETER_H_
00024 #define _KSTATIC_DELETER_H_
00025 
00026 #include <kglobal.h>
00027 
00039 class KDECORE_EXPORT KStaticDeleterBase {
00040 public:
00041     virtual ~KStaticDeleterBase() { }
00047     virtual void destructObject();
00048 };
00049 
00074 template<class type> class KStaticDeleter : public KStaticDeleterBase {
00075 public:
00076     KStaticDeleter() { deleteit = 0; globalReference = 0; array = false; }
00085     KDE_DEPRECATED type *setObject( type *obj, bool isArray = false) {
00086         deleteit = obj;
00087         globalReference = 0;
00088     array = isArray;
00089     if (obj)
00090             KGlobal::registerStaticDeleter(this);
00091     else
00092         KGlobal::unregisterStaticDeleter(this);
00093         return obj;
00094     }
00104     type *setObject( type* & globalRef, type *obj, bool isArray = false) {
00105         globalReference = &globalRef;
00106         deleteit = obj;
00107     array = isArray;
00108     if (obj)
00109             KGlobal::registerStaticDeleter(this);
00110     else
00111         KGlobal::unregisterStaticDeleter(this);
00112         globalRef = obj;
00113     return obj;
00114     }
00115 
00120     virtual void destructObject() {
00121         if (globalReference)
00122            *globalReference = 0;
00123     if (array)
00124        delete [] deleteit;
00125     else
00126        delete deleteit;
00127         deleteit = 0;
00128     }
00129     virtual ~KStaticDeleter() {
00130         KGlobal::unregisterStaticDeleter(this);
00131     destructObject();
00132     }
00133 private:
00134     type *deleteit;
00135     type **globalReference;
00136     bool array;
00137 };
00138 
00139 #endif
KDECore

kstaticdeleter.h

KDECore

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