vtkChartTextRepresentation.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkChartTextRepresentation_h
#define vtkChartTextRepresentation_h

#include "vtkNew.h" // for vtkNew
#include "vtkPVDataRepresentation.h"

class vtkBlockItem;
class vtkTextProperty;

class VTKREMOTINGVIEWS_EXPORT vtkChartTextRepresentation : public vtkPVDataRepresentation
{
public:
  static vtkChartTextRepresentation* New();
  vtkTypeMacro(vtkChartTextRepresentation, vtkPVDataRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  enum
  {
    AnyLocation = 0,
    LowerLeftCorner,
    LowerRightCorner,
    LowerCenter,
    UpperLeftCorner,
    UpperRightCorner,
    UpperCenter
  };
  void SetLabelLocation(int location);


  vtkGetVector2Macro(Position, double);
  vtkSetVector2Macro(Position, double);


  void SetInteractivity(bool);


  void SetTextProperty(vtkTextProperty*);

  // Superclass overrides
  void SetVisibility(bool val) override;
  int ProcessViewRequest(vtkInformationRequestKey* request_type, vtkInformation* inInfo,
    vtkInformation* outInfo) override;

protected:
  vtkChartTextRepresentation();
  ~vtkChartTextRepresentation() override = default;

  int FillInputPortInformation(int port, vtkInformation* info) override;

  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;

  bool AddToView(vtkView* view) override;

  bool RemoveFromView(vtkView* view) override;

private:
  vtkChartTextRepresentation(const vtkChartTextRepresentation&) = delete;
  void operator=(const vtkChartTextRepresentation&) = delete;

  void OnInteractionEvent();

  vtkNew<vtkBlockItem> BlockItem;
  vtkNew<vtkTable> PreparedData;
  double Position[2] = { 0.05, 0.05 };
  int LabelLocation = vtkChartTextRepresentation::AnyLocation;
};

#endif