VTK
vtkAngleWidget.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkAngleWidget.h,v
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
77 #ifndef vtkAngleWidget_h
78 #define vtkAngleWidget_h
79 
80 #include "vtkInteractionWidgetsModule.h" // For export macro
81 #include "vtkAbstractWidget.h"
82 
84 class vtkHandleWidget;
85 class vtkAngleWidgetCallback;
86 
87 
88 class VTKINTERACTIONWIDGETS_EXPORT vtkAngleWidget : public vtkAbstractWidget
89 {
90 public:
94  static vtkAngleWidget *New();
95 
97 
101  void PrintSelf(ostream& os, vtkIndent indent) override;
103 
109  void SetEnabled(int) override;
110 
117  {this->Superclass::SetWidgetRepresentation(reinterpret_cast<vtkWidgetRepresentation*>(r));}
118 
122  void CreateDefaultRepresentation() override;
123 
128  {return reinterpret_cast<vtkAngleRepresentation*>(this->WidgetRep);}
129 
134  int IsAngleValid();
135 
140  void SetProcessEvents(int) override;
141 
148  enum {Start=0,Define,Manipulate};
149 
151 
161  virtual void SetWidgetStateToStart();
162  virtual void SetWidgetStateToManipulate();
164 
168  virtual int GetWidgetState()
169  {return this->WidgetState;}
170 
171 protected:
172  vtkAngleWidget();
173  ~vtkAngleWidget() override;
174 
175  // The state of the widget
178 
179  // Callback interface to capture events when
180  // placing the widget.
181  static void AddPointAction(vtkAbstractWidget*);
182  static void MoveAction(vtkAbstractWidget*);
183  static void EndSelectAction(vtkAbstractWidget*);
184 
185  // The positioning handle widgets
189  vtkAngleWidgetCallback *AngleWidgetCallback1;
190  vtkAngleWidgetCallback *AngleWidgetCenterCallback;
191  vtkAngleWidgetCallback *AngleWidgetCallback2;
192 
193  // Methods invoked when the handles at the
194  // end points of the widget are manipulated
195  void StartAngleInteraction(int handleNum);
196  void AngleInteraction(int handleNum);
197  void EndAngleInteraction(int handleNum);
198 
199  friend class vtkAngleWidgetCallback;
200 
201 private:
202  vtkAngleWidget(const vtkAngleWidget&) = delete;
203  void operator=(const vtkAngleWidget&) = delete;
204 };
205 
206 #endif
vtkAngleWidgetCallback * AngleWidgetCenterCallback
void SetRepresentation(vtkAngleRepresentation *r)
Specify an instance of vtkWidgetRepresentation used to represent this widget in the scene.
virtual void SetProcessEvents(int)
Methods to change whether the widget responds to interaction.
vtkAngleRepresentation * GetAngleRepresentation()
Return the representation as a vtkAngleRepresentation.
void PrintSelf(ostream &os, vtkIndent indent) override
Standard macros implementing standard VTK methods.
a general widget for moving handles
vtkAngleWidgetCallback * AngleWidgetCallback2
virtual void CreateDefaultRepresentation()=0
Create the default widget representation if one is not set.
vtkHandleWidget * Point1Widget
vtkHandleWidget * CenterWidget
a simple class to control print indentation
Definition: vtkIndent.h:39
represent the vtkAngleWidget
measure the angle between two rays (defined by three points)
vtkAngleWidgetCallback * AngleWidgetCallback1
define the API for widget / widget representation
vtkHandleWidget * Point2Widget
void SetEnabled(int) override
Methods for activating this widget.
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
virtual int GetWidgetState()
Return the current widget state.