tap.c File Reference

#include "tap.h"
#include "math.h"
#include "stroke.h"
#include "utils.h"

Go to the source code of this file.

Functions
void	init_tap ()
	Initialize tap data structures. More...
void	recognize_tap (const touch_event_t *event)
	Recognize tap gesture. More...
const tap_t *	get_tap ()
	Access tap data array of size MAX_TOUCHES. More...
int	set_on_tap (void(*listener)(const tap_t *))
	Subscribe listener to tap gesture updates. More...

Variables
tap_t	tap_d [MAX_TOUCHES]
void(*	on_tap )(const tap_t *)=0

Function Documentation

get_tap()

const tap_t* get_tap

(

)

Access tap data array of size MAX_TOUCHES.

Returns

Address of first element of tap data array of size MAX_TOUCHES

Definition at line 34 of file tap.c.

init_tap()

void init_tap

(

)

Initialize tap data structures.

Definition at line 12 of file tap.c.

recognize_tap()

void recognize_tap

(

const touch_event_t *

event

)

Recognize tap gesture.

Parameters

event

touch event to recognize

Definition at line 27 of file tap.c.

set_on_tap()

int set_on_tap

(

void(*)(const tap_t *)

listener

)

Subscribe listener to tap gesture updates.

Parameters

Listener

accepts a const tap_t*

Returns

0 if first listener, 1 if replacing existing listener

Definition at line 38 of file tap.c.

Variable Documentation

on_tap

void(* on_tap) (const tap_t *)=0

(

const tap_t *

)

Definition at line 10 of file tap.c.

tap_d

tap_t tap_d[MAX_TOUCHES]

Definition at line 9 of file tap.c.