vtkLabelSizeCalculator.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkLabelSizeCalculator.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 vtkLabelSizeCalculator_h
#define vtkLabelSizeCalculator_h
 
#include "vtkRenderingLabelModule.h" // For export macro
#include "vtkPassInputTypeAlgorithm.h"
 
class vtkIntArray;
class vtkFreeTypeUtilities;
class vtkStringArray;
class vtkTextProperty;
 
class VTKRENDERINGLABEL_EXPORT vtkLabelSizeCalculator : public vtkPassInputTypeAlgorithm
{
public:
  static vtkLabelSizeCalculator* New();
  virtual void PrintSelf( ostream& os, vtkIndent indent );
  vtkTypeMacro(vtkLabelSizeCalculator,vtkPassInputTypeAlgorithm);
 
 
  virtual void SetFontProperty(vtkTextProperty* fontProp, int type = 0);
  virtual vtkTextProperty* GetFontProperty(int type = 0);
 
 
  vtkSetStringMacro(LabelSizeArrayName);
  vtkGetStringMacro(LabelSizeArrayName);
 
protected:
  vtkLabelSizeCalculator();
  virtual ~vtkLabelSizeCalculator();
 
  virtual int FillInputPortInformation( int port, vtkInformation* info );
  virtual int RequestData(
    vtkInformation* request,
    vtkInformationVector** inInfo,
    vtkInformationVector* outInfo );
 
  virtual vtkIntArray* LabelSizesForArray( vtkAbstractArray* labels, vtkIntArray* types );
 
  virtual void SetFontUtil( vtkFreeTypeUtilities* fontProp );
  vtkGetObjectMacro(FontUtil,vtkFreeTypeUtilities);
 
  vtkFreeTypeUtilities* FontUtil;
  char* LabelSizeArrayName;
 
  //BTX
  class Internals;
  Internals* Implementation;
  //ETX
 
private:
  vtkLabelSizeCalculator( const vtkLabelSizeCalculator& ); // Not implemented.
  void operator = ( const vtkLabelSizeCalculator& ); // Not implemented.
};
 
#endif // vtkLabelSizeCalculator_h