VTK  9.3.0
vtkAngleWidget.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
74 #ifndef vtkAngleWidget_h
75 #define vtkAngleWidget_h
76 
77 #include "vtkAbstractWidget.h"
78 #include "vtkInteractionWidgetsModule.h" // For export macro
79 
80 VTK_ABI_NAMESPACE_BEGIN
82 class vtkHandleWidget;
83 class vtkAngleWidgetCallback;
84 
85 class VTKINTERACTIONWIDGETS_EXPORT vtkAngleWidget : public vtkAbstractWidget
86 {
87 public:
91  static vtkAngleWidget* New();
92 
94 
98  void PrintSelf(ostream& os, vtkIndent indent) override;
100 
106  void SetEnabled(int) override;
107 
114  {
115  this->Superclass::SetWidgetRepresentation(reinterpret_cast<vtkWidgetRepresentation*>(r));
116  }
117 
122 
127  {
128  return reinterpret_cast<vtkAngleRepresentation*>(this->WidgetRep);
129  }
130 
136 
142 
149  enum
150  {
151  Start = 0,
153  Manipulate
154  };
155 
157 
167  virtual void SetWidgetStateToStart();
170 
174  virtual int GetWidgetState() { return this->WidgetState; }
175 
176 protected:
178  ~vtkAngleWidget() override;
179 
180  // The state of the widget
183 
184  // Callback interface to capture events when
185  // placing the widget.
189 
190  // The positioning handle widgets
194  vtkAngleWidgetCallback* AngleWidgetCallback1;
195  vtkAngleWidgetCallback* AngleWidgetCenterCallback;
196  vtkAngleWidgetCallback* AngleWidgetCallback2;
197 
198  // Methods invoked when the handles at the
199  // end points of the widget are manipulated
200  void StartAngleInteraction(int handleNum);
201  void AngleInteraction(int handleNum);
202  void EndAngleInteraction(int handleNum);
203 
204  friend class vtkAngleWidgetCallback;
205 
206 private:
207  vtkAngleWidget(const vtkAngleWidget&) = delete;
208  void operator=(const vtkAngleWidget&) = delete;
209 };
210 
211 VTK_ABI_NAMESPACE_END
212 #endif
define the API for widget / widget representation
vtkWidgetRepresentation * WidgetRep
represent the vtkAngleWidget
measure the angle between two rays (defined by three points)
vtkAngleRepresentation * GetAngleRepresentation()
Return the representation as a vtkAngleRepresentation.
~vtkAngleWidget() override
static vtkAngleWidget * New()
Instantiate this class.
void CreateDefaultRepresentation() override
Create the default widget representation if one is not set.
vtkAngleWidgetCallback * AngleWidgetCallback2
vtkAngleWidgetCallback * AngleWidgetCallback1
vtkHandleWidget * Point2Widget
void PrintSelf(ostream &os, vtkIndent indent) override
Standard methods for a VTK class.
vtkTypeBool IsAngleValid()
A flag indicates whether the angle is valid.
vtkAngleWidgetCallback * AngleWidgetCenterCallback
virtual void SetWidgetStateToStart()
Set the state of the widget.
virtual int GetWidgetState()
Return the current widget state.
vtkHandleWidget * CenterWidget
static void EndSelectAction(vtkAbstractWidget *)
static void AddPointAction(vtkAbstractWidget *)
void AngleInteraction(int handleNum)
void SetRepresentation(vtkAngleRepresentation *r)
Specify an instance of vtkWidgetRepresentation used to represent this widget in the scene.
static void MoveAction(vtkAbstractWidget *)
void StartAngleInteraction(int handleNum)
virtual void SetWidgetStateToManipulate()
Set the state of the widget.
void SetProcessEvents(vtkTypeBool) override
Methods to change the whether the widget responds to interaction.
vtkHandleWidget * Point1Widget
void SetEnabled(int) override
The method for activating and deactivating this widget.
void EndAngleInteraction(int handleNum)
a general widget for moving handles
a simple class to control print indentation
Definition: vtkIndent.h:38
abstract class defines interface between the widget and widget representation classes
int vtkTypeBool
Definition: vtkABI.h:64