//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;
}

//callback definition
static void _item_highlighted_cb(void *data, Evas_Object *obj, void *event_info) {
	dlog_print(DLOG_INFO, LOG_TAG, "item %p higlighted", event_info);
}

static void _item_unhighlighted_cb(void *data, Evas_Object *obj, void *event_info) {
	dlog_print(DLOG_INFO, LOG_TAG, "item %p unhiglighted", event_info);
}

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 some items
	for (int i = 0; i < 15; i++) {
		elm_gengrid_item_append(grid, gic, "refresh", NULL, NULL);
		elm_gengrid_item_append(grid, gic, "home", NULL, NULL);
	}

	//set whether items should be highlighted when item is selected (enabled by default)
	elm_gengrid_highlight_mode_set(grid, EINA_TRUE);

	//callbacks triggered when item is highlighted/unhighlighted
	evas_object_smart_callback_add(grid, "highlighted", _item_highlighted_cb, NULL);
	evas_object_smart_callback_add(grid, "unhighlighted", _item_unhighlighted_cb, NULL);
}