VTK  9.0.3
vtkContextInteractorStyle.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkContextInteractorStyle.h
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 =========================================================================*/
25 #ifndef vtkContextInteractorStyle_h
26 #define vtkContextInteractorStyle_h
27 
28 #include "vtkInteractorStyle.h"
29 #include "vtkNew.h" // For ivars
30 #include "vtkViewsContext2DModule.h" // For export macro
31 #include "vtkWeakPointer.h" // For ivars
32 
34 class vtkContextScene;
35 
36 class VTKVIEWSCONTEXT2D_EXPORT vtkContextInteractorStyle : public vtkInteractorStyle
37 {
38 public:
41  void PrintSelf(ostream& os, vtkIndent indent) override;
42 
50  void SetScene(vtkContextScene* scene);
51 
56 
60  virtual void OnSceneModified();
61 
66  void OnMouseMove() override;
67 
72  void OnLeftButtonDown() override;
73 
78  void OnLeftButtonUp() override;
79 
84  void OnMiddleButtonDown() override;
85 
90  void OnMiddleButtonUp() override;
91 
96  void OnRightButtonDown() override;
97 
102  void OnRightButtonUp() override;
103 
108  void OnMouseWheelForward() override;
109 
114  void OnMouseWheelBackward() override;
115 
120  virtual void OnSelection(unsigned int rect[5]);
121 
125  void OnChar() override;
126 
130  void OnKeyPress() override;
131 
135  void OnKeyRelease() override;
136 
137 protected:
140 
141  static void ProcessSceneEvents(
142  vtkObject* object, unsigned long event, void* clientdata, void* calldata);
143 
145  vtkObject* object, unsigned long event, void* clientdata, void* calldata);
146 
147  virtual void RenderNow();
148 
155 
162 
168 
171 
172 private:
174  void operator=(const vtkContextInteractorStyle&) = delete;
175 
176  void ConstructMouseEvent(vtkContextMouseEvent& event, int button);
177  bool ProcessMousePress(const vtkContextMouseEvent& event);
178 };
179 
180 #endif
An interactor for chart views.
void OnLeftButtonDown() override
Called when the user clicks the mouse left button.
void OnMiddleButtonDown() override
Called when the user clicks the mouse middle button.
void OnRightButtonUp() override
Called when the user releases the mouse right button.
void OnChar() override
Handle key presses.
void OnMouseWheelBackward() override
Called when the user moves the mouse wheel backward.
void EndProcessingEvent()
Inform the interactor style that an event is finished to be processed.
vtkNew< vtkCallbackCommand > InteractorCallbackCommand
virtual void OnSceneModified()
Called when the scene is modified.
static vtkContextInteractorStyle * New()
void SetScene(vtkContextScene *scene)
Set the scene to forward user events to.
vtkNew< vtkCallbackCommand > SceneCallbackCommand
~vtkContextInteractorStyle() override
static void ProcessInteractorEvents(vtkObject *object, unsigned long event, void *clientdata, void *calldata)
void OnKeyRelease() override
Called when the user releases a key.
static void ProcessSceneEvents(vtkObject *object, unsigned long event, void *clientdata, void *calldata)
virtual void OnSelection(unsigned int rect[5])
Place holder for future implementation.
virtual void RenderNow()
vtkWeakPointer< vtkContextScene > Scene
void OnRightButtonDown() override
Called when the user clicks the mouse right button.
void OnMiddleButtonUp() override
Called when the user releases the mouse middle button.
void OnMouseMove() override
Called when the user moves the mouse Default behavior forwards the event to the observed scene.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void OnMouseWheelForward() override
Called when the user moves the mouse wheel forward.
vtkContextScene * GetScene()
Return the observed scene.
void OnKeyPress() override
Called when the user presses a key.
void BeginProcessingEvent()
Inform the interactor style that an event is being processed.
void OnLeftButtonUp() override
Called when the user releases the mouse left button.
data structure to represent mouse events.
Provides a 2D scene for vtkContextItem objects.
a simple class to control print indentation
Definition: vtkIndent.h:34
provide event-driven interface to the rendering window (defines trackball mode)
abstract base class for most VTK objects
Definition: vtkObject.h:63
vtkTypeUInt32 vtkMTimeType
Definition: vtkType.h:293