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 "vtkPassInputTypeAlgorithm.h"
#include "vtkRenderingLabelModule.h" // For export macro
 
class vtkIntArray;
class vtkTextRenderer;
class vtkStringArray;
class vtkTextProperty;
 
class VTKRENDERINGLABEL_EXPORT vtkLabelSizeCalculator : public vtkPassInputTypeAlgorithm
{
public:
  static vtkLabelSizeCalculator* New();
  void PrintSelf(ostream& os, vtkIndent indent) override;
  vtkTypeMacro(vtkLabelSizeCalculator, vtkPassInputTypeAlgorithm);
 
 
  virtual void SetFontProperty(vtkTextProperty* fontProp, int type = 0);
  virtual vtkTextProperty* GetFontProperty(int type = 0);
 
 
  vtkSetStringMacro(LabelSizeArrayName);
  vtkGetStringMacro(LabelSizeArrayName);
 
 
  vtkSetMacro(DPI, int);
  vtkGetMacro(DPI, int);
 
protected:
  vtkLabelSizeCalculator();
  ~vtkLabelSizeCalculator() override;
 
  int FillInputPortInformation(int port, vtkInformation* info) override;
  int RequestData(
    vtkInformation* request, vtkInformationVector** inInfo, vtkInformationVector* outInfo) override;
 
  virtual vtkIntArray* LabelSizesForArray(vtkAbstractArray* labels, vtkIntArray* types);
 
  virtual void SetFontUtil(vtkTextRenderer* fontProp);
  vtkGetObjectMacro(FontUtil, vtkTextRenderer);
 
  vtkTextRenderer* FontUtil;
  char* LabelSizeArrayName;
 
  int DPI;
 
  class Internals;
  Internals* Implementation;
 
private:
  vtkLabelSizeCalculator(const vtkLabelSizeCalculator&) = delete;
  void operator=(const vtkLabelSizeCalculator&) = delete;
};
 
#endif // vtkLabelSizeCalculator_h