/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkLSDynaPartCollection.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
=========================================================================*/

#ifndef __vtkLSDynaPartCollection_h
#define __vtkLSDynaPartCollection_h

#include "LSDynaMetaData.h" //needed for LSDynaMetaData::LSDYNA_TYPES enum
#include "vtkObject.h"

class vtkDataArray;
class vtkUnstructuredGrid;
class vtkPoints;
class vtkUnsignedCharArray;
class vtkLSDynaPart;

class VTK_IO_EXPORT vtkLSDynaPartCollection: public vtkObject
{
public:
  class LSDynaPart;
  static vtkLSDynaPartCollection *New();

  vtkTypeMacro(vtkLSDynaPartCollection,vtkObject);
  virtual void PrintSelf(ostream &os, vtkIndent indent);

  //Description:
  //Pass in the metadata to setup this collection.
  //The optional min and max cell Id are used when in parallel to load balance the nodes.
  //Meaning the collection will only store subsections of parts that fall within
  //the range of the min and max
  //Note: min is included, and max is excluded from the valid range of cells.
  void InitCollection(LSDynaMetaData *metaData,
    vtkIdType* mins=NULL, vtkIdType* maxs=NULL);


  //Description:
  //For a given part type returns the number of cells to read and the number
  //of cells to skip first to not read
  void GetPartReadInfo(const int& partType, vtkIdType& numberOfCells,
    vtkIdType& numCellsToSkip,vtkIdType& numCellsToSkipEnd) const;

  //Description:
  //Finalizes the cell topology by mapping the cells point indexes
  //to a relative number based on the cells this collection is storing
  void FinalizeTopology();


  //Description: Register a cell of a given type and material index to the
  //correct part
  //NOTE: the cellIndex is relative to the collection. So in parallel
  //the cellIndex will be from 0 to MaxId-MinId
  void RegisterCellIndexToPart(const int& partType,const vtkIdType& matIdx,
                     const vtkIdType& cellIndex,const vtkIdType& npts);

  void InitCellInsertion();

  void AllocateParts();

  //Description: Insert a cell of a given type and material index to the 
  //collection.
  //NOTE: the cellIndex is relative to the collection. So in parallel
  //the cellIndex will be from 0 to MaxId-MinId
  void InsertCell(const int& partType,const vtkIdType& matIdx,
                  const int& cellType,const vtkIdType& npts, vtkIdType conn[8]);

  //Description:
  //Set for each part type what cells are deleted/dead
  void SetCellDeadFlags(const int& partType, vtkUnsignedCharArray *death,
                        const int& deadCellsAsGhostArray);

  bool IsActivePart(const int& id) const;

  //Description:
  //Given a part will return the unstructured grid for the part.
  //Note: You must call finalize before using this method
  vtkUnstructuredGrid* GetGridForPart(const int& index) const;

  int GetNumberOfParts() const;

  void DisbleDeadCells();

  //Description:
  void ReadPointUserIds(const vtkIdType& numTuples,const char* name);

  //Description:
  void ReadPointProperty(
                         const vtkIdType& numTuples,
                         const vtkIdType& numComps,
                         const char* name,
                         const bool &isProperty=true,
                         const bool& isGeometryPoints=false,
                         const bool& isRoadPoints=false);



  //Description:
  //Adds a property for all parts of a certain type
  void AddProperty(const LSDynaMetaData::LSDYNA_TYPES& type, const char* name,
                    const int& offset, const int& numComps);  
  void FillCellProperties(float *buffer,const LSDynaMetaData::LSDYNA_TYPES& type,
                          const vtkIdType& startId, const vtkIdType& numCells,
                          const int& numPropertiesInCell);
  void FillCellProperties(double *buffer,const LSDynaMetaData::LSDYNA_TYPES& type,
                          const vtkIdType& startId, const vtkIdType& numCells,
                          const int& numPropertiesInCell);

  //Description:
  //Adds User Ids for all parts of a certain type
  void ReadCellUserIds(
      const LSDynaMetaData::LSDYNA_TYPES& type, const int& status);
  
  template<typename T>
  void FillCellUserId(T *buffer,const LSDynaMetaData::LSDYNA_TYPES& type,
    const vtkIdType& startId, const vtkIdType& numCells)
    {
    this->FillCellUserIdArray(buffer,type,startId,numCells);
    }

protected:
  vtkLSDynaPartCollection();
  ~vtkLSDynaPartCollection();

  vtkIdType* MinIds;
  vtkIdType* MaxIds;

  //Builds up the basic meta information needed for topology storage
  void BuildPartInfo();

  //Description:
  //Breaks down the buffer of cell properties to the cell properties we
  //are interested in. This will remove all properties that aren't active or
  //for parts we are not loading
  template<typename T>
  void FillCellArray(T *buffer,const LSDynaMetaData::LSDYNA_TYPES& type,
     const vtkIdType& startId, vtkIdType numCells, const int& numTuples);

  template<typename T>
  void FillCellUserIdArray(T *buffer,const LSDynaMetaData::LSDYNA_TYPES& type,
     const vtkIdType& startId, vtkIdType numCells);

  //Description:
  //Methods for adding points to the collection
  void SetupPointPropertyForReading(
                         const vtkIdType& numTuples,
                         const vtkIdType& numComps,
                         const char* name,
                         const bool& isIdType,
                         const bool& isProperty,
                         const bool& isGeometryPoints,
                         const bool& isRoadPoints);
  template<typename T>
  void FillPointProperty(const vtkIdType& numTuples,
                         const vtkIdType& numComps,
                         vtkLSDynaPart** parts, const vtkIdType numParts);

private:
  vtkLSDynaPartCollection( const vtkLSDynaPartCollection& ); // Not implemented.
  void operator = ( const vtkLSDynaPartCollection& ); // Not implemented.

  LSDynaMetaData *MetaData;
  
  class LSDynaPartStorage;
  LSDynaPartStorage* Storage;
};



#endif // LSDYNAPARTS_H
