TViewer3DPad.h

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// @(#)root/gpad:$Id$
// Author: Richard Maunder  10/3/2005

/*************************************************************************
 * Copyright (C) 1995-2004, 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_TViewer3DPad
#define ROOT_TViewer3DPad

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// TViewer3DPad                                                         //
//                                                                      //
// Provides 3D viewer interface (TVirtualViewer3D) support on a pad.    //
// Will be merged with TView / TView3D eventually.                      //
//                                                                      //
//////////////////////////////////////////////////////////////////////////

#ifndef ROOT_TVirtualViewer3D
#include "TVirtualViewer3D.h"
#endif

class TVirtualPad;

class TViewer3DPad : public TVirtualViewer3D {
private:
   TVirtualPad &  fPad; // the pad we paint into.
   Bool_t         fBuilding; // is scene being built?

   // Non-copyable
   TViewer3DPad(const TViewer3DPad &);
   TViewer3DPad & operator = (const TViewer3DPad &);

public:
   TViewer3DPad(TVirtualPad & pad) : fPad(pad), fBuilding(kFALSE) {};
   ~TViewer3DPad() {};

   virtual Bool_t PreferLocalFrame() const;
   virtual void   BeginScene();
   virtual Bool_t BuildingScene() const { return fBuilding; }
   virtual void   EndScene();
   virtual Int_t  AddObject(const TBuffer3D & buffer, Bool_t * addChildren = 0);
   virtual Int_t  AddObject(UInt_t placedID, const TBuffer3D & buffer, Bool_t * addChildren = 0);

   // Composite shapes not supported on this viewer currently - ignore.
   // Will result in a set of individual component shapes
   virtual Bool_t OpenComposite(const TBuffer3D & buffer, Bool_t * addChildren = 0);
   virtual void   CloseComposite();
   virtual void   AddCompositeOp(UInt_t operation);

   ClassDef(TViewer3DPad,0)  //A 3D Viewer painter for TPads
};

#endif