DtObserverEventProcessor.h

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/******************************************************************************
** Copyright (c) 2010 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/
/******************************************************************************
** $RCSfile:  $ $Revision:  $ $State:  $
******************************************************************************/


#pragma once

#include <vrvCore/vrvCore.h>
#include <vrvCore/DtEventProcessorInterface.h>
#include <vrvCore/DtElementEntry.h>

namespace makVrv
{
   class DtDe;
   class DtInputDriver;
   class DtObserver;
   class DtIntersectorResult;

   class DT_DLL_VRVCORE DtObserverEventProcessor : public DtEventProcessorInterface
   {
   public:

      DtObserverEventProcessor(DtInputDriver& inputDriver, DtDe& de);

      virtual ~DtObserverEventProcessor();

      bool isMouseLooking() const;
      bool isTerrainDragging() const;
      bool isTerrainOrbitDragging() const;
      bool isViewDragging() const;

      void getHiddenMousePosition( int& mouseX, int& mouseY );

      virtual bool processMouseEvent( const DtMouseEvent& ev, DtChannel& channel);      
      
      virtual bool processKeyboardEvent( const DtKeyEvent& ev, DtChannel& channel);

      virtual const std::string& className();

      void processRightClickOnSelection( DtChannel& channel,
         const DtUniqueID& objectId, const DtMouseState& mouseState );

      static bool isJumpToEvent( DtMouseEvent::EventType mouseEventType,
         DtMouseState::MouseModifier mouseModifiers, DtElementEntry::ObjectType type );

      static bool isAttachToEvent( DtMouseEvent::EventType mouseEventType,
         DtMouseState::MouseModifier mouseModifiers, DtElementEntry::ObjectType type );
    
   protected:

      void processObjectMousedOn( DtObserver& observer, DtChannel& channel, 
         const DtMouseEvent&  mouseEvent, const DtIntersectorResult& isectResult);

      void processTerrainMousedOn( DtObserver& observer, DtChannel& channel, 
         const DtMouseEvent& mouseEvent, const DtIntersectorResult& isectResult);

      void showMouse( DtChannel& channel );
      void hideMouse( DtChannel& channel, const DtMouseEvent& mouseEvent );

      //View drag behavior
      void viewDrag(DtObserver&, DtChannel&, const DtMouseEvent& );
      void startViewDrag(DtObserver&, DtChannel&, const DtMouseEvent& );
      void continueViewDrag(DtObserver&, DtChannel&, const DtMouseEvent&  );
      void stopViewDrag(DtObserver&, DtChannel&, const DtMouseEvent& );

      //Mouse look behavior
      void mouseLook(DtObserver&, DtChannel&, const DtMouseEvent& );
      void startMouseLook(DtObserver&, DtChannel&, const DtMouseEvent& );
      void continueMouseLook( DtObserver&, DtChannel&, const DtMouseEvent& );
      void stopMouseLook(DtObserver&, DtChannel&, const DtMouseEvent& );

      //Terrain drag behavior
      void dragTerrain( DtObserver&, DtChannel&, const DtMouseEvent& );
      void startDragTerrain( DtObserver&, DtChannel&, const DtMouseEvent& );
      void continueDragTerrain( DtObserver&, DtChannel&, const DtMouseEvent&);      
      void stopDragTerrain( DtObserver&, DtChannel&, const DtMouseEvent& );

      void scrollLevelObserverByWheel( DtObserver& observer, DtChannel& channel,
         const DtMouseEvent& mouseEvent);
      void moveObserverByWheel( DtObserver&, DtChannel&, const DtMouseEvent&);      
      void changeViewMagnificationByWheel(  DtObserver&, DtChannel&,
         const DtMouseEvent&);
      void changeViewResolutionByWheel( DtObserver& observer, 
         DtChannel& channel, const DtMouseEvent& mouseEvent );
      void resetMagnification(  DtObserver&, DtChannel&, const DtMouseEvent&);

      void changeObserverSpeedByWheel(DtObserver& observer, DtChannel& channel,
         const DtMouseEvent& me);

      void moveObserverOverTerrain( DtObserver&, DtChannel&, const DtMouseEvent& );
      void orbitObserverOverTerrain( DtObserver&, DtChannel&, const DtMouseEvent&);

      void pickIntoScene(DtObserver&, DtChannel&, const DtMouseEvent&);                
      void rotate2DObserver(DtObserver&, double xDelta, double yDelta);     

      DtElementEntry::ObjectType typeFromId( const DtUniqueID& id );           

   protected:

      DtDe& myDe;
      DtInputDriver& myInputDriver;
      std::string myName;

      bool myIsMouseLooking;     
      double myLastMouseLookX;
      double myLastMouseLookY;

      bool myIsTerrainDragging;
      bool myIsTerrainOrbitDragging;
      DtMouseEvent myLastTerrainDragMouseEvent;

      bool myIsViewDragging;
      double myLastViewDragX;
      double myLastViewDragY;

      int myHiddenMouseX;
      int myHiddenMouseY;

      double myDragStartX;
      double myDragStartY;
      double myDragStartZ;

      char myQuadrant;

      double myVirtualMouseX;
      double myVirtualMouseY;
      double myHalfWindowWidth;
      double myHalfWindowHeight;
   };
}