// Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//

//  SMESH OBJECT : interactive object for SMESH visualization
//  File   : SMESH_PreviewActorsCollection.h
//  Module : SMESH
//
#ifndef SMESH_PREVIEW_ACTOR_COLLECTION_H
#define SMESH_PREVIEW_ACTOR_COLLECTION_H

#include "SMESH_Object.h"

#include <TopoDS_Shape.hxx>
#include <TopAbs_ShapeEnum.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
#include <QList>
#include <QMap>
#include <QString>

class vtkRenderer;
class GEOM_Actor;
class SVTK_Selector;

class SMESHOBJECT_EXPORT SMESH_PreviewActorsCollection
{
public:
  SMESH_PreviewActorsCollection();
  virtual ~SMESH_PreviewActorsCollection();

  virtual void    AddToRender     (vtkRenderer* theRenderer);
  virtual void    RemoveFromRender(vtkRenderer* theRenderer);

  bool            Init( const TopoDS_Shape& theShape,
                        const TopoDS_Shape& theMainShape,
                        TopAbs_ShapeEnum    subShapeType = TopAbs_EDGE,
                        const QString& = QString("") );

  void            SetSelector( SVTK_Selector* );

  void            HighlightAll( bool );
  void            HighlightID( int );

  GEOM_Actor*     GetActorByIndex( int );
  bool            IsValidIndex( int );

  int             GetIndexByShape( const TopoDS_Shape& );
  TopoDS_Shape    GetShapeByIndex( int i );
  int             NbShapesOfType( TopAbs_ShapeEnum type );

  void            SetIndices( const QList<int>& indices);
  const QList<int>& GetIndices() const { return myIndices; }

  void            SetShown( bool );

  int             count() const;
  int             chunkSize() const;
  int             currentChunk() const;
  bool            hasPrevious() const;
  bool            hasNext() const;
  void            previous();
  void            next();
  
protected:
  GEOM_Actor*    createActor( const TopoDS_Shape& );
  void           showCurrentChunk();
  void           clearActors();
   
protected:
  TopAbs_ShapeEnum             myType;
  QString                      myEntry;
  TopoDS_Shape                 myMainShape;
  SVTK_Selector*               mySelector;
  vtkRenderer*                 myRenderer;
  TopTools_IndexedMapOfShape   myMapOfShapes;
  QMap<int, GEOM_Actor*>       myMapOfActors;
  QList<int>                   myIndices;
  int                          myCurrentChunk;
  int                          myChunkSize;
  bool                         myIsShown;
};


#endif //SMESH_DEVICE_ACTOR_COLLECTION_H