visdataman.h

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#pragma once
 
/*+
________________________________________________________________________
 
 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Kristofer Tingdahl
 Date:          4-11-2002
 RCS:           $Id$
________________________________________________________________________
 
 
-*/
 
#include "visbasemod.h"
#include "sets.h"
#include "factory.h"
#include "callback.h"
#include <typeinfo>
namespace osg { class Node; }
 
namespace visBase
{
class DataObject;
class SelectionManager;
 
mExpClass(visBase) DataManager : public CallBacker
{
public:
                        DataManager();
    virtual             ~DataManager();
 
    const char*         errMsg() const;
 
    void                getIDs(const std::type_info&,TypeSet<int>&) const;
    int                 highestID() const;
 
    DataObject*         getObject(int id);
    const DataObject*   getObject(int id) const;
    int                 getID(const osg::Node*) const;
 
    int                 nrObjects() const;
    DataObject*         getIndexedObject(int idx);
    const DataObject*   getIndexedObject(int idx) const;
 
    SelectionManager&   selMan() { return selman_; }
 
    void                fillPar(IOPar&) const;
                        //Only saves freeid_
    bool                usePar(const IOPar&);
                        //Only restores freeid_
 
    Notifier<DataManager>       removeallnotify;
 
    mDefineFactoryInClass( DataObject, factory );
protected:
 
    friend class        DataObject;
    void                addObject( DataObject* );
    void                removeObject( DataObject* );
 
    ObjectSet<DataObject>       objects_;
 
    int                         freeid_;
    SelectionManager&           selman_;
    BufferString                errmsg_;
 
    static const char*          sKeyFreeID();
    static const char*          sKeySelManPrefix();
};
 
mGlobal(visBase) DataManager& DM();
 
};