kdecore Library API Documentation

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
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This file is part of the documentation for kdelibs Version 3.1.4.
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