include/terrainEventHandler/compassHandler.h

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/*******************************************************************************
** Copyright (c) 2007 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: compassHandler.h,v $ $Revision: 1.2 $ $State: Exp $
*******************************************************************************/


#ifndef COMPASSHANDLER_H_
#define COMPASSHANDLER_H_

#include "tmqt/eventHandler.h"
#include "qhash.h"
#include "drawerNative/displayPoint.h"

class DtTerrainDatabase;
class DtCompassModelData;
class DtModelData;
class DtTMViewportExtents;


#include "terrainEventHandler/terrainEventHandlerDefines.h"
#include "ngutil/entityMapperKey.h"

class DT_DLL_terrainEventHandler DtCompassHandler : public DtEventHandler
{
   Q_OBJECT

public:
   DtCompassHandler();
   
   virtual ~DtCompassHandler();

public slots:
   virtual void setPosition(int);

   virtual void showMapCompass(bool b);

protected slots:
   virtual void setTerrainDatabase(const DtTerrainDatabase*);
   virtual void viewportExtentsChanged(const DtTMViewportExtents*);

protected:
   virtual DtEntityMapperKey compassMapperKey() const;

   virtual DtCompassModelData* createCompassData(DtTMMapArea*) const;

   virtual DtCompassModelData* createCompassModelData() const;

   virtual bool connecting(DtTMMapArea*);
   virtual bool disconnecting(DtTMMapArea*);

public:
   static DtEventHandler* create(DtEventController* owner, void* usr);
};

#endif //COMPASSHANDLER_H_