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k3b/libk3b/plugin/k3bpluginfactory.h

99 lines
2.4 KiB

/*
*
* $Id: k3bpluginfactory.h 619556 2007-01-03 17:38:12Z trueg $
* Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org>
*
* This file is part of the K3b project.
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* See the file "COPYING" for the exact licensing terms.
*/
#ifndef _K3B_PLUGIN_FACTORY_H_
#define _K3B_PLUGIN_FACTORY_H_
#include <klibloader.h>
#include <kinstance.h>
#include <kglobal.h>
#include <klocale.h>
/**
* Template based on KGenericFactory. This is just here to avoid using the TQStringList args parameter
* in every plugin's constructor.
*
* Use this as follows:
* K_EXPORT_COMPONENT_FACTORY( libk3bartsaudioserver, K3bPluginFactory<K3bArtsAudioServer>( "k3bartsaudioserver" ) )
*
* See KGenericFactory for more information.
*/
template <class T>
class K3bPluginFactory : public KLibFactory
{
public:
K3bPluginFactory( const char* instanceName )
: m_instanceName(instanceName) {
s_self = this;
m_catalogueInitialized = false;
}
~K3bPluginFactory() {
if ( s_instance )
TDEGlobal::locale()->removeCatalogue( s_instance->instanceName() );
delete s_instance;
s_instance = 0;
s_self = 0;
}
static TDEInstance* instance();
protected:
virtual void setupTranslations( void ) {
if( instance() )
TDEGlobal::locale()->insertCatalogue( instance()->instanceName() );
}
void initializeMessageCatalogue() {
if( !m_catalogueInitialized ) {
m_catalogueInitialized = true;
setupTranslations();
}
}
virtual TQObject* createObject( TQObject *parent, const char *name,
const char*, const TQStringList& ) {
initializeMessageCatalogue();
return new T( parent, name );
}
private:
TQCString m_instanceName;
bool m_catalogueInitialized;
static TDEInstance* s_instance;
static K3bPluginFactory<T> *s_self;
};
template <class T>
TDEInstance* K3bPluginFactory<T>::s_instance = 0;
template <class T>
K3bPluginFactory<T>* K3bPluginFactory<T>::s_self = 0;
template <class T>
TDEInstance* K3bPluginFactory<T>::instance()
{
if( !s_instance && s_self )
s_instance = new TDEInstance( s_self->m_instanceName );
return s_instance;
}
#endif