vtkScalarsToColorsItem.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkScalarsToColorsItem.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 vtkScalarsToColorsItem_h
#define vtkScalarsToColorsItem_h
 
#include "vtkChartsCoreModule.h" // For export macro
#include "vtkNew.h"              // For vtkNew
#include "vtkPlot.h"
 
class vtkCallbackCommand;
class vtkImageData;
class vtkPlotBar;
class vtkPoints2D;
 
class VTKCHARTSCORE_EXPORT vtkScalarsToColorsItem : public vtkPlot
{
public:
  vtkTypeMacro(vtkScalarsToColorsItem, vtkPlot);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void GetBounds(double bounds[4]) override;
 
 
  vtkSetVector4Macro(UserBounds, double);
  vtkGetVector4Macro(UserBounds, double);
 
  bool Paint(vtkContext2D* painter) override;
 
 
  vtkGetObjectMacro(PolyLinePen, vtkPen);
 
 
  void SetHistogramTable(vtkTable* histogramTable);
  vtkGetObjectMacro(HistogramTable, vtkTable);
 
 
  vtkSetMacro(MaskAboveCurve, bool);
  vtkGetMacro(MaskAboveCurve, bool);
 
  vtkIdType GetNearestPoint(const vtkVector2f& point, const vtkVector2f&, vtkVector2f* location,
    vtkIdType* segmentIndex) override;
  using vtkPlot::GetNearestPoint;
 
  vtkStdString GetTooltipLabel(
    const vtkVector2d& plotPos, vtkIdType seriesIndex, vtkIdType segmentIndex) override;
 
protected:
  vtkScalarsToColorsItem();
  ~vtkScalarsToColorsItem() override;
 
  virtual void ComputeBounds(double* bounds);
 
  virtual void ComputeTexture() = 0;
 
  vtkGetMacro(TextureWidth, int);
 
  virtual bool ConfigurePlotBar();
 
 
  virtual void ScalarsToColorsModified(vtkObject* caller, unsigned long eid, void* calldata);
  static void OnScalarsToColorsModified(
    vtkObject* caller, unsigned long eid, void* clientdata, void* calldata);
 
  double UserBounds[4];
 
  bool Interpolate = true;
  int TextureWidth;
  vtkImageData* Texture = nullptr;
  vtkTable* HistogramTable = nullptr;
 
  vtkNew<vtkPoints2D> Shape;
  vtkNew<vtkCallbackCommand> Callback;
  vtkNew<vtkPlotBar> PlotBar;
  vtkNew<vtkPen> PolyLinePen;
  bool MaskAboveCurve;
 
private:
  vtkScalarsToColorsItem(const vtkScalarsToColorsItem&) = delete;
  void operator=(const vtkScalarsToColorsItem&) = delete;
};
 
#endif