app_scene.C

/*
 * This file is part of the "Archon" framework.
 * (http://files3d.sourceforge.net)
 *
 * Copyright © 2002 by Kristian Spangsege and Brian Kristiansen.
 *
 * Permission to use, copy, modify, and distribute this software and
 * its documentation under the terms of the GNU General Public License is
 * hereby granted. No representations are made about the suitability of
 * this software for any purpose. It is provided "as is" without express
 * or implied warranty. See the GNU General Public License
 * (http://www.gnu.org/copyleft/gpl.html) for more details.
 *
 * The characters in this file are ISO8859-1 encoded.
 *
 * The documentation in this file is in "Doxygen" style
 * (http://www.doxygen.org).
 */

#include <archon/x3d/server/network.H>

#include <archon/x3d/sai/app_scene.H>

namespace Archon
{
  namespace X3D
  {
    namespace SAI
    {
      using namespace Utilities;

      void ApplicationScene::launch(Ref<GroupingNode> sock)
        throw(ForwardDestroyedException, x3d::sai::AlreadyLaunchedException,
              UnexpectedException)
      {
        Ref<Server> serv = server.getRef();

        Time time = serv->getNextTimeStamp();
        Ref<ExecutionContext> applicationContainerContext =
          sock->context.getRef();

        Ref<ApplicationLink> applicationLink =
          new ApplicationLink(applicationContainerContext);
        applicationLink->setSubScene(Ref<SceneBase>(this));

        Ref<Transform> trans = new Transform(applicationContainerContext);
        trans->add(GroupingNode::childrenField, applicationLink, time);

        Mutex::Lock l(launchMutex);
        if(socket) throw x3d::sai::AlreadyLaunchedException();
        sock->add(GroupingNode::childrenField, trans, time);
        socket.reset(sock);
        transform.reset(trans);
      }

      void ApplicationScene::withdraw() throw(UnexpectedException)
      {
        Mutex::Lock l(launchMutex);
        if(!socket) return;

        try
        {
          Ref<Server> serv = server.getRef();

          Ref<GroupingNode> sock  = socket.getRef();
          Ref<Transform>    trans = transform.getRef();

          Time time = serv->getNextTimeStamp();
          sock->remove(GroupingNode::childrenField, trans, time);
        }
        catch(ForwardDestroyedException) {}

        transform.reset();
        socket.reset();
      }
    }
  }
}

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