dispatcher.h

/* Copyright (c) 2006-2016, Stefan Eilemann <eile@equalizergraphics.com>
 *                          Daniel Nachbaur <danielnachbaur@gmail.com>
 *
 * This file is part of Collage <https://github.com/Eyescale/Collage>
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 2.1 as published
 * by the Free Software Foundation.
 *
 * 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 Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef CO_DISPATCHER_H
#define CO_DISPATCHER_H

#include <co/api.h>
#include <co/commandFunc.h> // used inline
#include <co/types.h>

namespace co
{
namespace detail { class Dispatcher; }

class Dispatcher
{
public:
    typedef CommandFunc< Dispatcher > Func;

    Dispatcher& operator = ( const Dispatcher& ) { return *this; }

    template< typename T > void
    registerCommand( const uint32_t command, const CommandFunc< T >& func,
                     CommandQueue* queue );

    CO_API virtual bool dispatchCommand( ICommand& command );

protected:
    CO_API Dispatcher();
    CO_API Dispatcher( const Dispatcher& from );
    CO_API virtual ~Dispatcher();

    CO_API bool _cmdUnknown( ICommand& command );

private:
    detail::Dispatcher* const _impl;

    CO_API void _registerCommand( const uint32_t command,
                                  const Func& func, CommandQueue* queue );
};

template< typename T >
void Dispatcher::registerCommand( const uint32_t command,
                                  const CommandFunc< T >& func,
                                  CommandQueue* queue )
{
    _registerCommand( command, Dispatcher::Func( func ), queue );
}
}
#endif // CO_DISPATCHER_H