source: osgVisual/include/dataIO/visual_dataIO.h @ 32

#pragma once
/* -*-c++-*- osgVisual - Copyright (C) 2009-2010 Torben Dannhauer
 *
 * This library is based on OpenSceneGraph, open source and may be redistributed and/or modified under 
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * osgVisual requires for some proprietary modules a license from the correspondig manufacturer.
 * You have to aquire licenses for all used proprietary modules.
 * 
 * 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
 * OpenSceneGraph Public License for more details.
*/

#include <osg/notify>
#include <osg/referenced>
#include <osg/ArgumentParser>

#include <osgViewer/Viewer>

// Cluster einbinden
#ifdef USE_CLUSTER_DUMMY
        #include <dataIO_clusterDummy.h>
#endif
#ifdef USE_CLUSTER_UDP
        #include <dataIO_clusterUDP.h>
#endif

//ExtLink einbinden
#ifdef USE_EXTLINK_DUMMY
        #include <dataIO_extLinkDummy.h>
#endif
#ifdef USE_EXTLINK_VCL
        #include <dataIO_extLinkVCL.h>
#endif


// slot and transportContainer definitions
#include <dataIO_slot.h>
#include <dataIO_transportContainer.h>

#include <vector>




namespace osgVisual {

/**
 * \brief Zentrale Klasse für Datenanbindung des Sichtsystemnodes an das Gesamtsichtsystem bzw. dem Simulator.
 * 
 * Damit nur eine Klasse instantiiert werden kann, ist diese Klasse als Singleton realisiert.
 * 
 * 
 * @author Torben Dannhauer
 * @date  Nov 2009
 */ 
class visual_dataIO : public osg::Referenced
{
private:
        class dataIO_eventCallback : public osg::NodeCallback
        {
        public: 
                /**
                 * \brief Constructor, for setting the member variables.
                 * 
                 * @param viewer_ : Pointer to the viewer.
                 * @param sceneCamera_ : Pointer to the scene camera.
                 */ 
                dataIO_eventCallback(visual_dataIO* dataIO_):dataIO(dataIO_){};

                /**
                 * \brief This function is execute d as callback during update traversal.
                 * 
                 */ 
                virtual void operator()(osg::Node* node, osg::NodeVisitor* nv);
        private:
                visual_dataIO* dataIO;
        };
        osg::ref_ptr<dataIO_eventCallback> eventCallback;


        class dataIO_finalDrawCallback : public osg::Camera::DrawCallback
        {
        public:
                /**
                 * \brief Constructor
                 * 
                 */ 
                dataIO_finalDrawCallback::dataIO_finalDrawCallback(visual_dataIO* dataIO_):dataIO(dataIO_){};
                
                /**
                 * \brief Operator executed at callback
                 * 
                 */ 
                virtual void operator () (const osg::Camera& camera) const;
        private:
                visual_dataIO* dataIO;
        };

        osg::ref_ptr<dataIO_finalDrawCallback> finalDrawCallback;

        // Make Constructor private to prevent creating instances via ptr* = new ..().
        visual_dataIO();
        // Make Copy-Constructor private to prevent getting instances via copying dataIO instance.
        visual_dataIO(const visual_dataIO& cc);

        osg::ref_ptr<dataIO_extLink> extLink;
        osg::ref_ptr<dataIO_cluster> cluster;

        /**
         * Referenced Pointer to the applications viewer.
         */ 
        osg::ref_ptr<osgViewer::Viewer> viewer;

        osg::ref_ptr<osgVisual::dataIO_transportContainer> slotContainer;

        /**
         * List of SLOT variables dataIO provides.
         */ 
        std::vector<dataIO_slot> dataSlots;

        friend dataIO_eventCallback;
        friend dataIO_finalDrawCallback;

public:
        // Public destructor to allow singleton cleanup from extern
        ~visual_dataIO();

        /**
         * \brief This function returns an pointer to the singleton instalce of dataIO. If now instance exist, it will be instantiated silently.
         * 
         * After instantiation, dataIO still needs to bei initiialized to configure working mode etc!
         * 
         * @return : Pointer to the instance. 
         */ 
        static visual_dataIO* getInstance();

        void init(osgViewer::Viewer* viewer_,osg::ArgumentParser& arguments_);
        void shutdown();
        bool isMaster(){if (clusterMode==osgVisual::dataIO_cluster::MASTER) return true; else return false;};
        bool isSlave(){if (clusterMode==osgVisual::dataIO_cluster::SLAVE) return true; else return false;};
        bool isStandalone(){if (clusterMode==osgVisual::dataIO_cluster::STANDALONE) return true; else return false;};


// SLOT Access functions
        void* getSlotPointer(std::string slotName_, osgVisual::dataIO_slot::dataDirection direction_, osgVisual::dataIO_slot::varType variableTyp_ );
        double getSlotDataAsDouble(std::string variableName_, osgVisual::dataIO_slot::dataDirection direction_ );
        std::string getSlotDataAsString(std::string variableName_, osgVisual::dataIO_slot::dataDirection direction_ );
        void setSlotData(std::string variableName_, osgVisual::dataIO_slot::dataDirection direction_, std::string sValue_ );
        void setSlotData(std::string variableName_, osgVisual::dataIO_slot::dataDirection direction_, double value_ );

        int getSlotNum() {return dataSlots.size();}

        osgVisual::dataIO_cluster::clustermode clusterMode;

        bool initialized;
};


} // END namespace osgVisual