KODI::JOYSTICK::IDriverHandler Class Reference

Interface defining methods to handle joystick events for raw driver elements (buttons, hats, axes) More...

#include <IDriverHandler.h>

Inheritance diagram for KODI::JOYSTICK::IDriverHandler:

Public Member Functions
virtual bool	OnButtonMotion (unsigned int buttonIndex, bool bPressed)=0
	Handle button motion. More...
virtual bool	OnHatMotion (unsigned int hatIndex, HAT_STATE state)=0
	Handle hat motion. More...
virtual bool	OnAxisMotion (unsigned int axisIndex, float position, int center, unsigned int range)=0
	Handle axis motion. More...
virtual void	OnInputFrame (void)=0
	Handle buffered input motion for features that require multiple axes. More...

Detailed Description

Interface defining methods to handle joystick events for raw driver elements (buttons, hats, axes)

Member Function Documentation

OnAxisMotion()

virtual bool KODI::JOYSTICK::IDriverHandler::OnAxisMotion ( unsigned int  axisIndex, float  position, int  center, unsigned int  range  )

pure virtual

Handle axis motion.

If a joystick feature requires multiple axes (analog sticks, accelerometers), they can be buffered for later processing.

Parameters

axisIndex	The index of the axis as reported by the driver
position	The position of the axis in the closed interval [-1.0, 1.0]
center	The center point of the axis (either -1, 0 or 1)
range	The maximum distance the axis can move (either 1 or 2)

Returns

True if the motion was handled, false otherwise

Implemented in KODI::JOYSTICK::CButtonMapping, PERIPHERALS::CAddonInputHandling, PERIPHERALS::CAddonButtonMapping, and KODI::JOYSTICK::CInputHandling.

OnButtonMotion()

virtual bool KODI::JOYSTICK::IDriverHandler::OnButtonMotion ( unsigned int  buttonIndex, bool  bPressed  )

pure virtual

Handle button motion.

Parameters

buttonIndex	The index of the button as reported by the driver
bPressed	true for press motion, false for release motion

Returns

True if a press was handled, false otherwise

Implemented in KODI::JOYSTICK::CButtonMapping, PERIPHERALS::CAddonInputHandling, PERIPHERALS::CAddonButtonMapping, and KODI::JOYSTICK::CInputHandling.

OnHatMotion()

virtual bool KODI::JOYSTICK::IDriverHandler::OnHatMotion ( unsigned int  hatIndex, HAT_STATE  state  )

pure virtual

Handle hat motion.

Parameters

hatIndex	The index of the hat as reported by the driver
state	The direction the hat is now being pressed

Returns

True if the new direction was handled, false otherwise

Implemented in KODI::JOYSTICK::CButtonMapping, PERIPHERALS::CAddonInputHandling, PERIPHERALS::CAddonButtonMapping, and KODI::JOYSTICK::CInputHandling.

OnInputFrame()

virtual void KODI::JOYSTICK::IDriverHandler::OnInputFrame ( void  )

pure virtual

Handle buffered input motion for features that require multiple axes.

OnInputFrame() is called at the end of the frame when all axis motions have been reported. This has several uses, including:

• Combining multiple axes into a single analog stick or accelerometer event
• Imitating an analog feature with a digital button so that events can be dispatched every frame.

Implemented in KODI::JOYSTICK::CButtonMapping, PERIPHERALS::CAddonInputHandling, PERIPHERALS::CAddonButtonMapping, and KODI::JOYSTICK::CInputHandling.

---

The documentation for this class was generated from the following file:

• xbmc/input/joysticks/interfaces/IDriverHandler.h