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
65 #ifndef vtkAngleWidget_h
66 #define vtkAngleWidget_h
67 
68 #include "vtkAbstractWidget.h"
69 #include "vtkInteractionWidgetsModule.h" // For export macro
70 
71 VTK_ABI_NAMESPACE_BEGIN
73 class vtkHandleWidget;
74 class vtkAngleWidgetCallback;
75 
76 class VTKINTERACTIONWIDGETS_EXPORT vtkAngleWidget : public vtkAbstractWidget
77 {
78 public:
82  static vtkAngleWidget* New();
83 
85 
89  void PrintSelf(ostream& os, vtkIndent indent) override;
91 
97  void SetEnabled(int) override;
98 
105  {
106  this->Superclass::SetWidgetRepresentation(reinterpret_cast<vtkWidgetRepresentation*>(r));
107  }
108 
113 
118  {
119  return reinterpret_cast<vtkAngleRepresentation*>(this->WidgetRep);
120  }
121 
127 
133 
140  enum
141  {
142  Start = 0,
144  Manipulate
145  };
146 
148 
158  virtual void SetWidgetStateToStart();
161 
165  virtual int GetWidgetState() { return this->WidgetState; }
166 
167 protected:
169  ~vtkAngleWidget() override;
170 
171  // The state of the widget
174 
175  // Callback interface to capture events when
176  // placing the widget.
180 
181  // The positioning handle widgets
185  vtkAngleWidgetCallback* AngleWidgetCallback1;
186  vtkAngleWidgetCallback* AngleWidgetCenterCallback;
187  vtkAngleWidgetCallback* AngleWidgetCallback2;
188 
189  // Methods invoked when the handles at the
190  // end points of the widget are manipulated
191  void StartAngleInteraction(int handleNum);
192  void AngleInteraction(int handleNum);
193  void EndAngleInteraction(int handleNum);
194 
195  friend class vtkAngleWidgetCallback;
196 
197 private:
198  vtkAngleWidget(const vtkAngleWidget&) = delete;
199  void operator=(const vtkAngleWidget&) = delete;
200 };
201 
202 VTK_ABI_NAMESPACE_END
203 #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:29
abstract class defines interface between the widget and widget representation classes
int vtkTypeBool
Definition: vtkABI.h:64