rotate.c File Reference

#include "rotate.h"
#include "math.h"
#include "multidrag.h"

Go to the source code of this file.

Functions
void	init_rotate ()
	Initialize rotate data structures. More...
void	recognize_rotate (const touch_event_t *event)
	Recognize rotate gesture. This gesture locks the number of fingers once any finger starts moving. More...
const rotate_t *	get_rotate ()
	Access array of rotate_t of size MAX_TOUCHES. More...
int	set_on_rotate (void(*listener)(const rotate_t *))
	Subscribe listener to rotate gesture updates. More...

Variables
rotate_t	rotate_d [MAX_TOUCHES]
void(*	on_rotate )(const rotate_t *)=0

Function Documentation

get_rotate()

const rotate_t* get_rotate

(

)

Access array of rotate_t of size MAX_TOUCHES.

Returns

Pointer to first element of array of rotate_t of size MAX_TOUCHES

Definition at line 54 of file rotate.c.

init_rotate()

void init_rotate

(

)

Initialize rotate data structures.

Definition at line 9 of file rotate.c.

recognize_rotate()

void recognize_rotate

(

const touch_event_t *

event

)

Recognize rotate gesture. This gesture locks the number of fingers once any finger starts moving.

Parameters

event

touch event to recognize

Definition at line 19 of file rotate.c.

set_on_rotate()

int set_on_rotate

(

void(*)(const rotate_t *)

listener

)

Subscribe listener to rotate gesture updates.

Parameters

listener

accepts a const rotate_t*

Returns

0 if first listener, 1 if replacing existing listener

Definition at line 58 of file rotate.c.

Variable Documentation

on_rotate

void(* on_rotate) (const rotate_t *)=0

(

const rotate_t *

)

Definition at line 7 of file rotate.c.

rotate_d

rotate_t rotate_d[MAX_TOUCHES]

Definition at line 6 of file rotate.c.