18 function scale(percent: real, start: real, end: real): real {
19 return start + ((end - start) * (percent / 100));
22 function transparent(c: color, alpha: real): color {
23 return Qt.rgba(c.r, c.g, c.b, alpha);
26 function epsilonEqual(x: real, y: real): real {
27 return Math.abs(x - y) < Number.EPSILON;