efl/legacy/evas/src/lib/canvas/evas_touch_point.c

111 lines
2.4 KiB
C

#include "evas_common.h"
#include "evas_private.h"
void
_evas_touch_point_append(Evas *e, int id, Evas_Coord x, Evas_Coord y)
{
Evas_Coord_Touch_Point *point;
/* create new Evas_Coord_Touch_Point */
point = (Evas_Coord_Touch_Point *)calloc(1, sizeof(Evas_Coord_Touch_Point));
point->x = x;
point->y = y;
point->id = id;
point->state = EVAS_TOUCH_POINT_DOWN;
e->touch_points = eina_list_append(e->touch_points, point);
}
void
_evas_touch_point_update(Evas *e, int id, Evas_Coord x, Evas_Coord y, Evas_Touch_Point_State state)
{
Eina_List *l;
Evas_Coord_Touch_Point *point = NULL;
EINA_LIST_FOREACH(e->touch_points, l, point)
{
if (point->id == id)
{
point->x = x;
point->y = y;
point->state = state;
break;
}
}
}
void
_evas_touch_point_remove(Evas *e, int id)
{
Eina_List *l;
Evas_Coord_Touch_Point *point = NULL;
EINA_LIST_FOREACH(e->touch_points, l, point)
{
if (point->id == id)
{
e->touch_points = eina_list_remove(e->touch_points, point);
free(point);
break;
}
}
}
EAPI unsigned int
evas_touch_point_list_count(Evas *e)
{
MAGIC_CHECK(e, Evas, MAGIC_EVAS);
return 0;
MAGIC_CHECK_END();
return eina_list_count(e->touch_points);
}
EAPI void
evas_touch_point_list_nth_xy_get(Evas *e, unsigned int n, Evas_Coord *x, Evas_Coord *y)
{
Evas_Coord_Touch_Point *point = NULL;
MAGIC_CHECK(e, Evas, MAGIC_EVAS);
if (x) *x = 0;
if (y) *y = 0;
return;
MAGIC_CHECK_END();
point = (Evas_Coord_Touch_Point *)eina_list_nth(e->touch_points, n);
if (!point)
{
if (x) *x = 0;
if (y) *y = 0;
return;
}
if (x) *x = point->x;
if (y) *y = point->y;
}
EAPI int
evas_touch_point_list_nth_id_get(Evas *e, unsigned int n)
{
Evas_Coord_Touch_Point *point = NULL;
MAGIC_CHECK(e, Evas, MAGIC_EVAS);
return -1;
MAGIC_CHECK_END();
point = (Evas_Coord_Touch_Point *)eina_list_nth(e->touch_points, n);
if (!point) return -1;
return point->id;
}
EAPI Evas_Touch_Point_State
evas_touch_point_list_nth_state_get(Evas *e, unsigned int n)
{
Evas_Coord_Touch_Point *point = NULL;
MAGIC_CHECK(e, Evas, MAGIC_EVAS);
return EVAS_TOUCH_POINT_CANCEL;
MAGIC_CHECK_END();
point = (Evas_Coord_Touch_Point *)eina_list_nth(e->touch_points, n);
if (!point) return EVAS_TOUCH_POINT_CANCEL;
return point->state;
}