vtkLabelPlacementMapper.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkLabelPlacementMapper.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 vtkLabelPlacementMapper_h
#define vtkLabelPlacementMapper_h
 
#include "vtkMapper2D.h"
#include "vtkRenderingLabelModule.h" // For export macro
 
class vtkCoordinate;
class vtkLabelRenderStrategy;
class vtkSelectVisiblePoints;
 
class VTKRENDERINGLABEL_EXPORT vtkLabelPlacementMapper : public vtkMapper2D
{
public:
  static vtkLabelPlacementMapper* New();
  vtkTypeMacro(vtkLabelPlacementMapper, vtkMapper2D);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void RenderOverlay(vtkViewport* viewport, vtkActor2D* actor) override;
 
 
  virtual void SetRenderStrategy(vtkLabelRenderStrategy* s);
  vtkGetObjectMacro(RenderStrategy, vtkLabelRenderStrategy);
 
 
  vtkSetClampMacro(MaximumLabelFraction, double, 0., 1.);
  vtkGetMacro(MaximumLabelFraction, double);
 
 
  vtkSetMacro(IteratorType, int);
  vtkGetMacro(IteratorType, int);
 
 
  vtkGetMacro(PositionsAsNormals, bool);
  vtkSetMacro(PositionsAsNormals, bool);
  vtkBooleanMacro(PositionsAsNormals, bool);
 
 
  vtkGetMacro(GeneratePerturbedLabelSpokes, bool);
  vtkSetMacro(GeneratePerturbedLabelSpokes, bool);
  vtkBooleanMacro(GeneratePerturbedLabelSpokes, bool);
 
 
  vtkGetMacro(UseDepthBuffer, bool);
  vtkSetMacro(UseDepthBuffer, bool);
  vtkBooleanMacro(UseDepthBuffer, bool);
 
 
  vtkSetMacro(PlaceAllLabels, bool);
  vtkGetMacro(PlaceAllLabels, bool);
  vtkBooleanMacro(PlaceAllLabels, bool);
 
 
  vtkSetMacro(OutputTraversedBounds, bool);
  vtkGetMacro(OutputTraversedBounds, bool);
  vtkBooleanMacro(OutputTraversedBounds, bool);
 
  enum LabelShape
  {
    NONE,
    RECT,
    ROUNDED_RECT,
    NUMBER_OF_LABEL_SHAPES
  };
 
 
  vtkSetClampMacro(Shape, int, 0, NUMBER_OF_LABEL_SHAPES - 1);
  vtkGetMacro(Shape, int);
  virtual void SetShapeToNone() { this->SetShape(NONE); }
  virtual void SetShapeToRect() { this->SetShape(RECT); }
  virtual void SetShapeToRoundedRect() { this->SetShape(ROUNDED_RECT); }
 
  enum LabelStyle
  {
    FILLED,
    OUTLINE,
    NUMBER_OF_LABEL_STYLES
  };
 
 
  vtkSetClampMacro(Style, int, 0, NUMBER_OF_LABEL_STYLES - 1);
  vtkGetMacro(Style, int);
  virtual void SetStyleToFilled() { this->SetStyle(FILLED); }
  virtual void SetStyleToOutline() { this->SetStyle(OUTLINE); }
 
 
  vtkSetMacro(Margin, double);
  vtkGetMacro(Margin, double);
 
 
  vtkSetVector3Macro(BackgroundColor, double);
  vtkGetVector3Macro(BackgroundColor, double);
 
 
  vtkSetClampMacro(BackgroundOpacity, double, 0.0, 1.0);
  vtkGetMacro(BackgroundOpacity, double);
 
 
  vtkGetObjectMacro(AnchorTransform, vtkCoordinate);
 
  void ReleaseGraphicsResources(vtkWindow*) override;
 
protected:
  vtkLabelPlacementMapper();
  ~vtkLabelPlacementMapper() override;
 
  virtual void SetAnchorTransform(vtkCoordinate*);
 
  int FillInputPortInformation(int port, vtkInformation* info) override;
 
  class Internal;
  Internal* Buckets;
 
  vtkLabelRenderStrategy* RenderStrategy;
  vtkCoordinate* AnchorTransform;
  vtkSelectVisiblePoints* VisiblePoints;
  double MaximumLabelFraction;
  bool PositionsAsNormals;
  bool GeneratePerturbedLabelSpokes;
  bool UseDepthBuffer;
  bool PlaceAllLabels;
  bool OutputTraversedBounds;
 
  int LastRendererSize[2];
  double LastCameraPosition[3];
  double LastCameraFocalPoint[3];
  double LastCameraViewUp[3];
  double LastCameraParallelScale;
  int IteratorType;
 
  int Style;
  int Shape;
  double Margin;
  double BackgroundOpacity;
  double BackgroundColor[3];
 
private:
  vtkLabelPlacementMapper(const vtkLabelPlacementMapper&) = delete;
  void operator=(const vtkLabelPlacementMapper&) = delete;
};
 
#endif