#include "gesturelib.h"
#include "gestureparams.h"
#include "math.h"
#include "multistroke.h"
#include "recognizer.h"
#include "stroke.h"
#include "tap.h"

Data Structures
struct	double_tap
	holds the state, last location, and timestamp of a double tap instance More...

Macros
#define	DIST_X 20

#define	DIST_Y 20

Typedefs
typedef struct double_tap	double_tap_t
	holds the state, last location, and timestamp of a double tap instance More...

Functions
void	init_double_tap ()
	initializes the data array by setting all field to 0/NULL More...

void	recognize_double_tap (const touch_event_t *event)
	reads the last tap and stroke data and determines whethers this new stroke is part of a double_tap event More...

const double_tap_t *	get_double_tap ()
	returns an array of the ongoing double_touch data for each finger More...

int	set_on_double_tap (void(listener)(const double_tap_t ))
	Listen to double_tap events. More...

Macro Definition Documentation

◆ DIST_X

#define DIST_X 20

Definition at line 12 of file double.h.

◆ DIST_Y

#define DIST_Y 20

Definition at line 13 of file double.h.

Typedef Documentation

◆ double_tap_t

typedef struct double_tap double_tap_t

holds the state, last location, and timestamp of a double tap instance

Function Documentation

◆ get_double_tap()

const double_tap_t* get_double_tap ( )

returns an array of the ongoing double_touch data for each finger

Returns: array of size MAX_TOUCHES of double_touch data

Definition at line 186 of file double.c.

◆ init_double_tap()

void init_double_tap ( )

initializes the data array by setting all field to 0/NULL

Definition at line 11 of file double.c.

◆ recognize_double_tap()

void recognize_double_tap ( const touch_event_t * event )

reads the last tap and stroke data and determines whethers this new stroke is part of a double_tap event

Parameters

event touch event

Definition at line 30 of file double.c.

◆ set_on_double_tap()

int set_on_double_tap ( void(*)(const double_tap_t *) listener )

Listen to double_tap events.

Parameters

listener accepts a const double_tap_t*

Returns: 0 if first listener, 1 if replacing existing listener

Definition at line 52 of file double.c.

Data Structures

Macros

Typedefs

Functions