kio Library: dptrtemplate.h Source File (kio Library)

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# 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

This file is part of the documentation for kio Library Version 3.4.1.
Documentation copyright © 1996-2004 the KDE developers.
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