ApplicationExecutionObject.h

/******************************************************************************
Este arquivo eh parte da implementacao do ambiente declarativo do middleware
Ginga (Ginga-NCL).

Direitos Autorais Reservados (c) 1989-2007 PUC-Rio/Laboratorio TeleMidia

Este programa eh software livre; voce pode redistribui-lo e/ou modificah-lo sob
os termos da Licenca Publica Geral GNU versao 2 conforme publicada pela Free
Software Foundation.

Este programa eh distribuido na expectativa de que seja util, porem, SEM
NENHUMA GARANTIA; nem mesmo a garantia implicita de COMERCIABILIDADE OU
ADEQUACAO A UMA FINALIDADE ESPECIFICA. Consulte a Licenca Publica Geral do
GNU versao 2 para mais detalhes.

Voce deve ter recebido uma copia da Licenca Publica Geral do GNU versao 2 junto
com este programa; se nao, escreva para a Free Software Foundation, Inc., no
endereco 59 Temple Street, Suite 330, Boston, MA 02111-1307 USA.

Para maiores informacoes:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
******************************************************************************
This file is part of the declarative environment of middleware Ginga (Ginga-NCL)

Copyright: 1989-2007 PUC-RIO/LABORATORIO TELEMIDIA, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.

This program 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 General Public License version 2 for more
details.

You should have received a copy of the GNU General Public License version 2
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

For further information contact:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
*******************************************************************************/

#ifndef _APPLICATIONEXECUTIONOBJECT_H_
#define _APPLICATIONEXECUTIONOBJECT_H_

#include "CompositeExecutionObject.h"
#include "ExecutionObject.h"

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace ncl {
namespace model {
namespace components {
  class ApplicationExecutionObject : public ExecutionObject {
    private:
        map<string, FormatterEvent*> preparedEvents;
        FormatterEvent* currentEvent;
        pthread_mutex_t eventsMutex;

    public:
        ApplicationExecutionObject(
                string id,
                Node* node,
                bool handling,
                ILinkActionListener* seListener);

        ApplicationExecutionObject(
                string id,
                Node* node,
                GenericDescriptor* descriptor,
                bool handling,
                ILinkActionListener* seListener);

        ApplicationExecutionObject(
                string id,
                Node* node,
                CascadingDescriptor* descriptor,
                bool handling,
                ILinkActionListener* seListener);

        virtual ~ApplicationExecutionObject();

    private:
        void initializeApplicationObject();

    public:
        bool isSleeping();
        bool isPaused();
        FormatterEvent* getCurrentEvent();
        bool hasPreparedEvent(FormatterEvent* event);
        void setCurrentEvent(FormatterEvent* event);
        bool prepare(FormatterEvent* event, double offsetTime);
        bool start();
        EventTransition* getNextTransition();
        bool stop();
        bool abort();
        bool pause();
        bool resume();
        bool unprepare();

    private:
        void unprepareEvents();
        void removeEventListeners();
        void removeParentObject(Node* parentNode, void* parentObject);
        void removeParentListenersFromEvent(FormatterEvent* event);
        void lockEvents();
        void unlockEvents();
  };
}
}
}
}
}
}
}

#endif //_APPLICATIONEXECUTIONOBJECT_H_