vtkScalarBarActor.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkScalarBarActor_h
#define vtkScalarBarActor_h
 
#include "vtkActor2D.h"
#include "vtkDoubleArray.h"               // for ivars
#include "vtkRenderingAnnotationModule.h" // For export macro
#include "vtkWrappingHints.h"             // For VTK_MARSHALAUTO
 
VTK_ABI_NAMESPACE_BEGIN
class vtkColor3ub;
class vtkPiecewiseFunction;
class vtkPolyData;
class vtkPolyDataMapper2D;
class vtkProperty2D;
class vtkScalarBarActorInternal;
class vtkScalarsToColors;
class vtkTextActor;
class vtkTextMapper;
class vtkTextProperty;
class vtkTexture;
class vtkTexturedActor2D;
 
#define VTK_ORIENT_HORIZONTAL 0
#define VTK_ORIENT_VERTICAL 1
 
class VTKRENDERINGANNOTATION_EXPORT VTK_MARSHALAUTO vtkScalarBarActor : public vtkActor2D
{
public:
  vtkTypeMacro(vtkScalarBarActor, vtkActor2D);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  static vtkScalarBarActor* New();


  int RenderOpaqueGeometry(vtkViewport* viewport) override;
  int RenderTranslucentPolygonalGeometry(vtkViewport*) override { return 0; }
  int RenderOverlay(vtkViewport* viewport) override;

  vtkTypeBool HasTranslucentPolygonalGeometry() override;

  void ReleaseGraphicsResources(vtkWindow*) override;

  virtual void GetScalarBarRect(int rect[4], vtkViewport* viewport);


  virtual void SetLookupTable(vtkScalarsToColors*);
  vtkGetObjectMacro(LookupTable, vtkScalarsToColors);


  virtual void SetOpacityFunction(vtkPiecewiseFunction*);
  vtkGetObjectMacro(OpacityFunction, vtkPiecewiseFunction);


  vtkSetMacro(UseOpacity, vtkTypeBool);
  vtkGetMacro(UseOpacity, vtkTypeBool);
  vtkBooleanMacro(UseOpacity, vtkTypeBool);


  vtkSetClampMacro(MaximumNumberOfColors, int, 2, VTK_INT_MAX);
  vtkGetMacro(MaximumNumberOfColors, int);


  vtkSetClampMacro(NumberOfLabels, int, 0, 64);
  vtkGetMacro(NumberOfLabels, int);


  virtual void SetCustomLabels(vtkDoubleArray* labels);
  vtkGetObjectMacro(CustomLabels, vtkDoubleArray);


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


  vtkSetClampMacro(Orientation, int, VTK_ORIENT_HORIZONTAL, VTK_ORIENT_VERTICAL);
  vtkGetMacro(Orientation, int);
  void SetOrientationToHorizontal() { this->SetOrientation(VTK_ORIENT_HORIZONTAL); }
  void SetOrientationToVertical() { this->SetOrientation(VTK_ORIENT_VERTICAL); }


  vtkGetMacro(ForceVerticalTitle, bool);
  vtkSetMacro(ForceVerticalTitle, bool);


  virtual void SetTitleTextProperty(vtkTextProperty* p);
  vtkGetObjectMacro(TitleTextProperty, vtkTextProperty);


  virtual void SetLabelTextProperty(vtkTextProperty* p);
  vtkGetObjectMacro(LabelTextProperty, vtkTextProperty);


  virtual void SetAnnotationTextProperty(vtkTextProperty* p);
  vtkGetObjectMacro(AnnotationTextProperty, vtkTextProperty);


  vtkSetStringMacro(LabelFormat);
  vtkGetStringMacro(LabelFormat);


  vtkSetStringMacro(Title);
  vtkGetStringMacro(Title);


  vtkSetStringMacro(ComponentTitle);
  vtkGetStringMacro(ComponentTitle);

  void ShallowCopy(vtkProp* prop) override;


  vtkSetMacro(TextureGridWidth, double);
  vtkGetMacro(TextureGridWidth, double);


  vtkGetObjectMacro(TextureActor, vtkTexturedActor2D);
 
  enum
  {
    PrecedeScalarBar = 0,
    SucceedScalarBar
  };


  vtkSetClampMacro(TextPosition, int, PrecedeScalarBar, SucceedScalarBar);
  vtkGetMacro(TextPosition, int);
  virtual void SetTextPositionToPrecedeScalarBar()
  {
    this->SetTextPosition(vtkScalarBarActor::PrecedeScalarBar);
  }
  virtual void SetTextPositionToSucceedScalarBar()
  {
    this->SetTextPosition(vtkScalarBarActor::SucceedScalarBar);
  }



  vtkSetMacro(MaximumWidthInPixels, int);
  vtkGetMacro(MaximumWidthInPixels, int);
  vtkSetMacro(MaximumHeightInPixels, int);
  vtkGetMacro(MaximumHeightInPixels, int);


  vtkSetMacro(AnnotationLeaderPadding, double);
  vtkGetMacro(AnnotationLeaderPadding, double);


  vtkSetMacro(DrawAnnotations, vtkTypeBool);
  vtkGetMacro(DrawAnnotations, vtkTypeBool);
  vtkBooleanMacro(DrawAnnotations, vtkTypeBool);


  vtkSetMacro(DrawNanAnnotation, vtkTypeBool);
  vtkGetMacro(DrawNanAnnotation, vtkTypeBool);
  vtkBooleanMacro(DrawNanAnnotation, vtkTypeBool);


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


  vtkSetStringMacro(BelowRangeAnnotation);
  vtkGetStringMacro(BelowRangeAnnotation);


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


  vtkSetStringMacro(AboveRangeAnnotation);
  vtkGetStringMacro(AboveRangeAnnotation);

  vtkSetMacro(FixedAnnotationLeaderLineColor, vtkTypeBool);
  vtkGetMacro(FixedAnnotationLeaderLineColor, vtkTypeBool);
  vtkBooleanMacro(FixedAnnotationLeaderLineColor, vtkTypeBool);


  vtkSetStringMacro(NanAnnotation);
  vtkGetStringMacro(NanAnnotation);


  vtkSetMacro(AnnotationTextScaling, vtkTypeBool);
  vtkGetMacro(AnnotationTextScaling, vtkTypeBool);
  vtkBooleanMacro(AnnotationTextScaling, vtkTypeBool);


  vtkSetMacro(DrawBackground, vtkTypeBool);
  vtkGetMacro(DrawBackground, vtkTypeBool);
  vtkBooleanMacro(DrawBackground, vtkTypeBool);


  vtkSetMacro(DrawFrame, vtkTypeBool);
  vtkGetMacro(DrawFrame, vtkTypeBool);
  vtkBooleanMacro(DrawFrame, vtkTypeBool);


  vtkSetMacro(DrawColorBar, vtkTypeBool);
  vtkGetMacro(DrawColorBar, vtkTypeBool);
  vtkBooleanMacro(DrawColorBar, vtkTypeBool);


  vtkSetMacro(DrawTickLabels, vtkTypeBool);
  vtkGetMacro(DrawTickLabels, vtkTypeBool);
  vtkBooleanMacro(DrawTickLabels, vtkTypeBool);


  virtual void SetBackgroundProperty(vtkProperty2D* p);
  vtkGetObjectMacro(BackgroundProperty, vtkProperty2D);


  virtual void SetFrameProperty(vtkProperty2D* p);
  vtkGetObjectMacro(FrameProperty, vtkProperty2D);


  vtkGetMacro(TextPad, int);
  vtkSetMacro(TextPad, int);


  vtkGetMacro(VerticalTitleSeparation, int);
  vtkSetMacro(VerticalTitleSeparation, int);


  vtkGetMacro(BarRatio, double);
  vtkSetClampMacro(BarRatio, double, 0., 1.);


  vtkGetMacro(TitleRatio, double);
  vtkSetClampMacro(TitleRatio, double, 0., 1.);


  vtkSetMacro(UnconstrainedFontSize, bool);
  vtkGetMacro(UnconstrainedFontSize, bool);
  vtkBooleanMacro(UnconstrainedFontSize, bool);
 
protected:
  vtkScalarBarActor();
  ~vtkScalarBarActor() override;

  virtual void RebuildLayout(vtkViewport* viewport);

  virtual int RebuildLayoutIfNeeded(vtkViewport* viewport);

  virtual void FreeLayoutStorage();

  virtual void ComputeFrame();

  virtual void ComputeScalarBarThickness();

  virtual void ComputeSwatchPad();
 
  // This method must set this->P->NanSwatchSize and this->P->NanBox.
  // It may depend on layout performed by ComputeScalarBarThickness.
  virtual void LayoutNanSwatch();

  virtual void LayoutBelowRangeSwatch();

  virtual void LayoutAboveRangeSwatch();

  virtual void LayoutAboveRangeSwatchPosn();

  virtual void PrepareTitleText();

  virtual void LayoutTitle();

  virtual void LayoutForUnconstrainedFont();

  virtual void ComputeScalarBarLength();

  virtual void LayoutTicks();

  virtual void LayoutAnnotations();

  virtual void ConfigureAnnotations();

  virtual void ConfigureFrame();

  virtual void DrawBoxes();

  virtual void ConfigureScalarBar();

  virtual void ConfigureTitle();

  virtual void ConfigureTicks();

  virtual void ConfigureNanSwatch();

  virtual void ConfigureAboveBelowRangeSwatch(bool above);

  virtual void EditAnnotations() {}

  virtual void SizeTitle(double* titleSize, int* size, vtkViewport* viewport);

  int MapAnnotationLabels(
    vtkScalarsToColors* lkup, double start, double delta, const double* range);

  int PlaceAnnotationsVertically(
    double barX, double barY, double barWidth, double barHeight, double delta, double pad);
  int PlaceAnnotationsHorizontally(
    double barX, double barY, double barWidth, double barHeight, double delta, double pad);

  int MaximumNumberOfColors;
  int NumberOfLabels;
  int NumberOfLabelsBuilt;
  int Orientation;
  vtkDoubleArray* CustomLabels = nullptr;
  bool UseCustomLabels = false;
  vtkTypeBool DrawBackground; // off by default
  vtkTypeBool DrawFrame;      // off by default
  vtkTypeBool DrawColorBar;   // on by default
  vtkTypeBool DrawTickLabels; // on by default
  vtkTypeBool DrawAnnotations;
  vtkTypeBool DrawNanAnnotation;
  vtkTypeBool AnnotationTextScaling; // off by default
  vtkTypeBool FixedAnnotationLeaderLineColor;
  vtkProperty2D* BackgroundProperty;
  vtkProperty2D* FrameProperty;
  char* Title;
  char* ComponentTitle;
  char* LabelFormat;
  vtkTypeBool UseOpacity; // off by default
  double TextureGridWidth;
  int TextPosition;
  char* NanAnnotation;
  char* BelowRangeAnnotation;
  char* AboveRangeAnnotation;
  double AnnotationLeaderPadding;
  int MaximumWidthInPixels;
  int MaximumHeightInPixels;
  int TextPad;
  int VerticalTitleSeparation;
  double BarRatio;
  double TitleRatio;
  bool UnconstrainedFontSize; // off by default
  bool ForceVerticalTitle;    // off by default
 
  bool DrawBelowRangeSwatch;
  bool DrawAboveRangeSwatch;

  vtkTimeStamp BuildTime; 
  int LastSize[2];        
  int LastOrigin[2];      
 
  vtkScalarBarActorInternal* P; 
 
  vtkScalarsToColors* LookupTable;       
  vtkPiecewiseFunction* OpacityFunction; 
 
  vtkTextProperty* TitleTextProperty;      
  vtkTextProperty* LabelTextProperty;      
  vtkTextProperty* AnnotationTextProperty; 
  vtkTextActor* TitleActor;                
 
  vtkPolyData* ScalarBar;               
  vtkPolyDataMapper2D* ScalarBarMapper; 
  vtkActor2D* ScalarBarActor;           
  vtkPolyData* TexturePolyData;         
  vtkTexture* Texture;                  
  vtkTexturedActor2D* TextureActor;     
 
  vtkPolyData* Background;               
  vtkPolyDataMapper2D* BackgroundMapper; 
  vtkActor2D* BackgroundActor;           
 
  vtkPolyData* Frame;               
  vtkPolyDataMapper2D* FrameMapper; 
  vtkActor2D* FrameActor;           
 
private:
  vtkScalarBarActor(const vtkScalarBarActor&) = delete;
  void operator=(const vtkScalarBarActor&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif