observer.h

/* Copyright (c) 2009-2015, Stefan Eilemann <eile@equalizergraphics.com>
 *
 * 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 EQ_OBSERVER_H
#define EQ_OBSERVER_H

#include <eq/api.h>
#include <eq/types.h>
#include <eq/fabric/observer.h>         // base class

namespace eq
{
namespace detail { class Observer; }

class Observer : public fabric::Observer< Config, Observer >
{
public:
    EQ_API explicit Observer( Config* parent );

    EQ_API virtual ~Observer();

    EQ_API virtual bool handleEvent( EventICommand& command );

    EQ_API ServerPtr getServer();

    void addView( View* ) { /* nop */ } 
    void removeView( View* ) { /* nop */ } 

protected:
    EQ_API virtual bool configInit();
    friend class detail::InitVisitor;

    EQ_API virtual bool configExit();
    friend class detail::ExitVisitor;

    EQ_API virtual void frameStart( const uint32_t frameNumber );
    friend class detail::FrameVisitor;

private:
    detail::Observer* const _impl;
};
}
#endif // EQ_OBSERVER_H