render method

dynamic render()

Implementation

render() {
  var ctx = this.startRender();
  double start = 0;
  double total = 0;
  var c = 0;
  for (var i = 0; i < items.length; i++) {
    total += items[i].weight;
  }
  for (var i = 0; i < items.length; i++) {
    if (i == items.length - 1 && c == 0) {
      //make sure last color is different than first
      c = 1;
    }
    if (items[i].color == null) {
      items[i].color = _colors[c];
    }
    drawSegment(ctx, items[i], start, total);
    c++;
    if (c >= _colors.length) {
      c = 0;
    }
    start += items[i].weight;
  }
}