vtkScivisSelector.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause

 
#ifndef vtkScivisSelector_h
#define vtkScivisSelector_h
 
#include "vtkNew.h" // For ivars
#include "vtkObject.h"
#include "vtkSelection.h"         // For the smart pointer getter macro
#include "vtkSmartPointer.h"      // For ivars
#include "vtkViewsScivisModule.h" // For export macro
#include "vtkWeakPointer.h"       // For ivars
 
VTK_ABI_NAMESPACE_BEGIN
class vtkHardwareSelector;
class vtkScivisView;
 
class VTKVIEWSSCIVIS_EXPORT vtkScivisSelector : public vtkObject
{
public:
  static vtkScivisSelector* New();
  vtkTypeMacro(vtkScivisSelector, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  enum SelectionModeType
  {
    SURFACE = 0,
    FRUSTUM = 1
  };
  vtkSetClampMacro(Mode, int, SURFACE, FRUSTUM);
  vtkGetMacro(Mode, int);
  void SetModeToSurface() { this->SetMode(SURFACE); }
  void SetModeToFrustum() { this->SetMode(FRUSTUM); }


  void SetFieldAssociation(int assoc);
  vtkGetMacro(FieldAssociation, int);
  void SelectCells();
  void SelectPoints();

  void SelectRegion(int x0, int y0, int x1, int y1, bool extend = false);

  void Clear();

  vtkGetSmartPointerMacro(CurrentSelection, vtkSelection);


  void SetView(vtkScivisView* view);
  vtkScivisView* GetView();
 
protected:
  vtkScivisSelector();
  ~vtkScivisSelector() override;
 
private:
  vtkScivisSelector(const vtkScivisSelector&) = delete;
  void operator=(const vtkScivisSelector&) = delete;

  void GenerateSelection(const int region[4], vtkSelection* selection);
 
  vtkWeakPointer<vtkScivisView> View;
  vtkNew<vtkHardwareSelector> HardwareSelector;
  vtkSmartPointer<vtkSelection> CurrentSelection;
  int Mode;
  int FieldAssociation;
};
 
VTK_ABI_NAMESPACE_END
#endif