TEveLegoEventHandler.h

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// @(#)root/eve:$Id$
// Author: Matevz Tadel 2007
 
/*************************************************************************
 * Copyright (C) 1995-2007, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
 
#ifndef ROOT_TEveLegoEventHandler
#define ROOT_TEveLegoEventHandler
 
#include "TGLEventHandler.h"
#include "TGLCamera.h"
 
class TEveCaloLego;
 
class TEveLegoEventHandler : public TGLEventHandler
{
private:
   TEveLegoEventHandler(const TEveLegoEventHandler&);            // Not implemented
   TEveLegoEventHandler& operator=(const TEveLegoEventHandler&); // Not implemented
 
protected:
   enum EMode_e   { kLocked, kFree };
 
   EMode_e  fMode;       // current rotation mode
   Float_t  fTransTheta; // transition theta in radians
   Float_t  fTheta;
 
   virtual Bool_t Rotate(Int_t xDelta, Int_t yDelta, Bool_t mod1, Bool_t mod2);
 
public:
   TEveCaloLego*  fLego;
 
   TEveLegoEventHandler(TGWindow *w, TObject *obj, TEveCaloLego* lego = 0);
   virtual ~TEveLegoEventHandler() {}
 
   virtual Bool_t HandleKey(Event_t *event);
 
   Float_t GetTransTheta() {return fTransTheta;}
   void    SetTransTheta(Float_t h) {fTransTheta=h;}
 
   TEveCaloLego* GetLego() { return fLego; }
   void          SetLego( TEveCaloLego* x) { fLego = x; }
 
   ClassDef(TEveLegoEventHandler, 0); // A GL event handler class. Swiches perspective or orthographic camera.
};
 
#endif