dptrtemplate.h
// -*- c-basic-offset:4; indent-tabs-mode:nil -*-
// vim: set ts=4 sts=4 sw=4 et:
/* This file is part of the KDE project
Copyright (C) 2003 Alexander Kellett <lypanov@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef __dptrtemplate_h__
#define __dptrtemplate_h__
#include <qptrdict.h>
template<class Instance, class PrivateData>
class dPtrTemplate {
public:
static PrivateData* d( const Instance* instance )
{
if ( !d_ptr ) {
cleanup_d_ptr();
d_ptr = new QPtrDict<PrivateData>;
qAddPostRoutine( cleanup_d_ptr );
}
PrivateData* ret = d_ptr->find( (void*) instance );
if ( ! ret ) {
ret = new PrivateData;
d_ptr->replace( (void*) instance, ret );
}
return ret;
}
static void delete_d( const Instance* instance )
{
if ( d_ptr )
d_ptr->remove( (void*) instance );
}
private:
static void cleanup_d_ptr()
{
delete d_ptr;
}
static QPtrDict<PrivateData>* d_ptr;
};
#endif

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