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vtkPolyLineWidget.h
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vtkPolyLineWidget.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPolyLineWidget.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.
=========================================================================*/
/**
* @class vtkPolyLineWidget
* @brief widget for vtkPolyLineRepresentation.
*
* vtkPolyLineWidget is the vtkAbstractWidget subclass for
* vtkPolyLineRepresentation which manages the interactions with
* vtkPolyLineRepresentation. This is based on vtkPolyLineWidget.
*
* This widget allows the creation of a polyline interactively by adding or removing points
* based on mouse position and a modifier key.
*
* - ctrl+click inserts a new point on the selected line
* - shift+click deletes the selected point
* - alt+click adds a new point anywhere depending on last selected point.
* If the first point is selected, the new point is added at the beginning,
* else it is added at the end.
*
* @sa
* vtkPolyLineRepresentation, vtkPolyLineWidget
*/
#ifndef vtkPolyLineWidget_h
#define vtkPolyLineWidget_h
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkAbstractWidget.h"
class vtkPolyLineRepresentation;
class VTKINTERACTIONWIDGETS_EXPORT vtkPolyLineWidget : public vtkAbstractWidget
{
public:
static vtkPolyLineWidget* New();
vtkTypeMacro(vtkPolyLineWidget, vtkAbstractWidget);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Specify an instance of vtkWidgetRepresentation used to represent this
* widget in the scene. Note that the representation is a subclass of
* vtkProp so it can be added to the renderer independent of the widget.
*/
void SetRepresentation(vtkPolyLineRepresentation *r)
{
this->Superclass::SetWidgetRepresentation(
reinterpret_cast<vtkWidgetRepresentation*>(r));
}
/**
* Create the default widget representation if one is not set. By default,
* this is an instance of the vtkPolyLineRepresentation class.
*/
void CreateDefaultRepresentation() override;
protected:
vtkPolyLineWidget();
~vtkPolyLineWidget() override;
int WidgetState;
enum _WidgetState {Start=0,Active};
// These methods handle events
static void SelectAction(vtkAbstractWidget*);
static void EndSelectAction(vtkAbstractWidget*);
static void TranslateAction(vtkAbstractWidget*);
static void ScaleAction(vtkAbstractWidget*);
static void MoveAction(vtkAbstractWidget*);
private:
vtkPolyLineWidget(const vtkPolyLineWidget&) = delete;
void operator=(const vtkPolyLineWidget&) = delete;
};
#endif