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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkInteractorStyleDrawPolygon
* @brief draw polygon during mouse move
*
* This interactor style allows the user to draw a polygon in the render
* window using the left mouse button while mouse is moving.
* When the mouse button is released, a SelectionChangedEvent will be fired.
*/
#ifndef vtkInteractorStyleDrawPolygon_h
#define vtkInteractorStyleDrawPolygon_h
#include "vtkInteractionStyleModule.h" // For export macro
#include "vtkInteractorStyle.h"
#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO
#include "vtkVector.h" // For Polygon Points
#include <vector> // For returning Polygon Points
VTK_ABI_NAMESPACE_BEGIN
class vtkUnsignedCharArray;
class VTKINTERACTIONSTYLE_EXPORT VTK_MARSHALAUTO vtkInteractorStyleDrawPolygon
: public vtkInteractorStyle
{
public:
static vtkInteractorStyleDrawPolygon* New();
vtkTypeMacro(vtkInteractorStyleDrawPolygon, vtkInteractorStyle);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* Event bindings
*/
void OnMouseMove() override;
void OnLeftButtonDown() override;
void OnLeftButtonUp() override;
///@}
///@{
/**
* Whether to draw polygon in screen pixels. Default is ON
*/
vtkSetMacro(DrawPolygonPixels, bool);
vtkGetMacro(DrawPolygonPixels, bool);
vtkBooleanMacro(DrawPolygonPixels, bool);
///@}
/**
* Get the current polygon points in display units
*/
std::vector<vtkVector2i> GetPolygonPoints();
protected:
vtkInteractorStyleDrawPolygon();
~vtkInteractorStyleDrawPolygon() override;
virtual void DrawPolygon();
int StartPosition[2];
int EndPosition[2];
int Moving;
bool DrawPolygonPixels;
vtkUnsignedCharArray* PixelArray;
private:
vtkInteractorStyleDrawPolygon(const vtkInteractorStyleDrawPolygon&) = delete;
void operator=(const vtkInteractorStyleDrawPolygon&) = delete;
class vtkInternal;
vtkInternal* Internal;
};
VTK_ABI_NAMESPACE_END
#endif
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