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Common/vtkCellTypes.h

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/*=========================================================================
  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkCellTypes.h,v $
  Language:  C++


Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

 * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
   of any contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.

 * Modified source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

=========================================================================*/
#ifndef __vtkCellTypes_h
#define __vtkCellTypes_h

#include "vtkObject.h"
#include "vtkCellType.h"
#include "vtkIntArray.h"
#include "vtkUnsignedCharArray.h"


class VTK_COMMON_EXPORT vtkCellTypes : public vtkObject 
{
public:
  static vtkCellTypes *New();
  vtkTypeMacro(vtkCellTypes,vtkObject);

  int Allocate(int sz=512, int ext=1000);

  void InsertCell(int id, unsigned char type, int loc);
  
  int InsertNextCell(unsigned char type, int loc);

  void SetCellTypes(int ncells, vtkUnsignedCharArray *cellTypes, vtkIntArray *cellLocations);

  int GetCellLocation(int cellId) { return this->LocationArray->GetValue(cellId);};

  void DeleteCell(int cellId) { this->TypeArray->SetValue(cellId, VTK_EMPTY_CELL);};

  int GetNumberOfTypes() { return (this->MaxId + 1);};

  int IsType(unsigned char type);

  int InsertNextType(unsigned char type){return this->InsertNextCell(type,-1);};
  
  unsigned char GetCellType(int cellId) { return this->TypeArray->GetValue(cellId);};

  void Squeeze();

  void Reset();

  unsigned long GetActualMemorySize();

  void DeepCopy(vtkCellTypes *src);

protected:
  vtkCellTypes();
  ~vtkCellTypes();

  vtkUnsignedCharArray *TypeArray; // pointer to types array
  vtkIntArray *LocationArray;   // pointer to array of offsets
  int Size;            // allocated size of data
  int MaxId;           // maximum index inserted thus far
  int Extend;          // grow array by this point
private:
  vtkCellTypes(const vtkCellTypes&);  // Not implemented.
  void operator=(const vtkCellTypes&);    // Not implemented.
};



inline int vtkCellTypes::IsType(unsigned char type)
{
  int numTypes=this->GetNumberOfTypes();

  for (int i=0; i<numTypes; i++)
    {
    if ( type == this->GetCellType(i))
      {
      return 1;
      }
    }
  return 0;
}


#endif

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