//return an icon (defined by data)
static Evas_Object *_item_content_get(void *data, Evas_Object *obj, const char *part) {
	Evas_Object *icon = elm_icon_add(obj);
	elm_icon_standard_set(icon, data);
	evas_object_show(icon);
	return icon;
}

static void gengrid_test(Evas_Object *parent) {
	Evas_Object *grid = elm_gengrid_add(parent);
	evas_object_size_hint_weight_set(grid, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
	elm_win_resize_object_add(parent, grid);
	evas_object_show(grid);
	elm_gengrid_horizontal_set(grid, EINA_TRUE);
	elm_gengrid_item_size_set(grid, 150, 150);

	Elm_Gengrid_Item_Class *gic;
	gic = elm_gengrid_item_class_new();
	gic->func.content_get = _item_content_get;

	//create ten clock items
	for (int i = 0; i < 10; i++) {
		elm_gengrid_item_append(grid, gic, "clock", NULL, NULL);
	}

	//get the first item and change it's data
	Elm_Object_Item *first = elm_gengrid_first_item_get(grid);
	elm_object_item_data_set(first, "close");

	//get the second item
	Elm_Object_Item *next =elm_gengrid_item_next_get(first);
	elm_object_item_data_set(next, "refresh");

	//get the last item
	Elm_Object_Item *last = elm_gengrid_last_item_get(grid);
	elm_object_item_data_set(last, "close");

	//get the item before the last one
	Elm_Object_Item *prev = elm_gengrid_item_prev_get(last);
	elm_object_item_data_set(prev, "refresh");
	
	//get index of an item
    int index = elm_gengrid_item_index_get(prev);
    dlog_print(DLOG_INFO, LOG_TAG, "index: %d", index);

    //get item's count
	int count = elm_gengrid_items_count(grid);
	dlog_print(DLOG_INFO, LOG_TAG, "There are %d items in this gengrid.", count);
}