Function shiftDown

libs/echarts/echarts.simple.js:43893–43910

(start, end, delta, dir)

    });

    function shiftDown(start, end, delta, dir) {
        for (var j = start; j < end; j++) {
            if (list[j].y + delta > viewTop + viewHeight) {
                break;
            }

            list[j].y += delta;
            if (j > start
                && j + 1 < end
                && list[j + 1].y > list[j].y + list[j].height
            ) {
                shiftUp(j, delta / 2);
                return;
            }
        }

        shiftUp(end - 1, delta / 2);
    }

    function shiftUp(end, delta) {
        for (var j = end; j >= 0; j--) {