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155 lines
4.0 KiB
C++
155 lines
4.0 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkInteractorStyleUser.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkInteractorStyleUser
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* @brief provides customizable interaction routines
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*
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*
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* The most common way to customize user interaction is to write a subclass
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* of vtkInteractorStyle: vtkInteractorStyleUser allows you to customize
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* the interaction to without subclassing vtkInteractorStyle. This is
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* particularly useful for setting up custom interaction modes in
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* scripting languages such as Python. This class allows you
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* to hook into the MouseMove, ButtonPress/Release, KeyPress/Release,
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* etc. events. If you want to hook into just a single mouse button,
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* but leave the interaction modes for the others unchanged, you
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* must use e.g. SetMiddleButtonPressMethod() instead of the more
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* general SetButtonPressMethod().
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*/
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#ifndef vtkInteractorStyleUser_h
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#define vtkInteractorStyleUser_h
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#include "vtkInteractionStyleModule.h" // For export macro
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#include "vtkInteractorStyle.h"
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// new motion flag
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#define VTKIS_USERINTERACTION 8
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class VTKINTERACTIONSTYLE_EXPORT vtkInteractorStyleUser : public vtkInteractorStyle
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{
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public:
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static vtkInteractorStyleUser* New();
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vtkTypeMacro(vtkInteractorStyleUser, vtkInteractorStyle);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Get the most recent mouse position during mouse motion.
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* In your user interaction method, you must use this to track
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* the mouse movement. Do not use GetEventPosition(), which records
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* the last position where a mouse button was pressed.
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*/
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vtkGetVector2Macro(LastPos, int);
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//@}
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//@{
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/**
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* Get the previous mouse position during mouse motion, or after
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* a key press. This can be used to calculate the relative
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* displacement of the mouse.
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*/
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vtkGetVector2Macro(OldPos, int);
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//@}
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//@{
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/**
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* Test whether modifiers were held down when mouse button or key
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* was pressed.
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*/
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vtkGetMacro(ShiftKey, int);
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vtkGetMacro(CtrlKey, int);
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//@}
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//@{
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/**
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* Get the character for a Char event.
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*/
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vtkGetMacro(Char, int);
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//@}
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//@{
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/**
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* Get the KeySym (in the same format as vtkRenderWindowInteractor KeySyms)
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* for a KeyPress or KeyRelease method.
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*/
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vtkGetStringMacro(KeySym);
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//@}
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//@{
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/**
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* Get the mouse button that was last pressed inside the window
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* (returns zero when the button is released).
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*/
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vtkGetMacro(Button, int);
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//@}
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//@{
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/**
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* Generic event bindings
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*/
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void OnMouseMove() override;
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void OnLeftButtonDown() override;
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void OnLeftButtonUp() override;
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void OnMiddleButtonDown() override;
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void OnMiddleButtonUp() override;
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void OnRightButtonDown() override;
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void OnRightButtonUp() override;
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void OnMouseWheelForward() override;
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void OnMouseWheelBackward() override;
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//@}
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//@{
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/**
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* Keyboard functions
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*/
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void OnChar() override;
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void OnKeyPress() override;
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void OnKeyRelease() override;
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//@}
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//@{
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/**
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* These are more esoteric events, but are useful in some cases.
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*/
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void OnExpose() override;
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void OnConfigure() override;
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void OnEnter() override;
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void OnLeave() override;
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//@}
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void OnTimer() override;
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protected:
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vtkInteractorStyleUser();
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~vtkInteractorStyleUser() override;
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int LastPos[2];
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int OldPos[2];
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int ShiftKey;
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int CtrlKey;
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int Char;
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char* KeySym;
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int Button;
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private:
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vtkInteractorStyleUser(const vtkInteractorStyleUser&) = delete;
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void operator=(const vtkInteractorStyleUser&) = delete;
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};
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#endif
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