vtkDynamic2DLabelMapper.h

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

  Program:   Visualization Toolkit
  Module:    vtkDynamic2DLabelMapper.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.

=========================================================================*/
/*-------------------------------------------------------------------------
  Copyright 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#ifndef vtkDynamic2DLabelMapper_h
#define vtkDynamic2DLabelMapper_h

#include "vtkLabeledDataMapper.h"
#include "vtkRenderingLabelModule.h" // For export macro

class VTKRENDERINGLABEL_EXPORT vtkDynamic2DLabelMapper : public vtkLabeledDataMapper
{
public:

  static vtkDynamic2DLabelMapper* New();
  vtkTypeMacro(vtkDynamic2DLabelMapper, vtkLabeledDataMapper);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void SetPriorityArrayName(const char* name);


  vtkSetMacro(ReversePriority, bool);
  vtkGetMacro(ReversePriority, bool);
  vtkBooleanMacro(ReversePriority, bool);


  vtkSetMacro(LabelHeightPadding, float);
  vtkGetMacro(LabelHeightPadding, float);


  vtkSetMacro(LabelWidthPadding, float);
  vtkGetMacro(LabelWidthPadding, float);


  void RenderOpaqueGeometry(vtkViewport* viewport, vtkActor2D* actor) override;
  void RenderOverlay(vtkViewport* viewport, vtkActor2D* actor) override;

protected:
  vtkDynamic2DLabelMapper();
  ~vtkDynamic2DLabelMapper() override;

  double GetCurrentScale(vtkViewport* viewport);

  float* LabelWidth;
  float* LabelHeight;
  float* Cutoff;
  float ReferenceScale;
  float LabelHeightPadding;
  float LabelWidthPadding;

  bool ReversePriority;

private:
  vtkDynamic2DLabelMapper(const vtkDynamic2DLabelMapper&) = delete;
  void operator=(const vtkDynamic2DLabelMapper&) = delete;
};

#endif