Cesium-Prequel/Source/Widgets/Timeline/TimelineHighlightRange.js

import defaultValue from "../../Core/defaultValue.js";
import JulianDate from "../../Core/JulianDate.js";

/**
 * @private
 */
function TimelineHighlightRange(color, heightInPx, base) {
  this._color = color;
  this._height = heightInPx;
  this._base = defaultValue(base, 0);
}

TimelineHighlightRange.prototype.getHeight = function () {
  return this._height;
};

TimelineHighlightRange.prototype.getBase = function () {
  return this._base;
};

TimelineHighlightRange.prototype.getStartTime = function () {
  return this._start;
};

TimelineHighlightRange.prototype.getStopTime = function () {
  return this._stop;
};

TimelineHighlightRange.prototype.setRange = function (start, stop) {
  this._start = start;
  this._stop = stop;
};

TimelineHighlightRange.prototype.render = function (renderState) {
  var range = "";
  if (this._start && this._stop && this._color) {
    var highlightStart = JulianDate.secondsDifference(
      this._start,
      renderState.epochJulian
    );
    var highlightLeft = Math.round(
      renderState.timeBarWidth * renderState.getAlpha(highlightStart)
    );
    var highlightStop = JulianDate.secondsDifference(
      this._stop,
      renderState.epochJulian
    );
    var highlightWidth =
      Math.round(
        renderState.timeBarWidth * renderState.getAlpha(highlightStop)
      ) - highlightLeft;
    if (highlightLeft < 0) {
      highlightWidth += highlightLeft;
      highlightLeft = 0;
    }
    if (highlightLeft + highlightWidth > renderState.timeBarWidth) {
      highlightWidth = renderState.timeBarWidth - highlightLeft;
    }
    if (highlightWidth > 0) {
      range =
        '<span class="cesium-timeline-highlight" style="left: ' +
        highlightLeft.toString() +
        "px; width: " +
        highlightWidth.toString() +
        "px; bottom: " +
        this._base.toString() +
        "px; height: " +
        this._height +
        "px; background-color: " +
        this._color +
        ';"></span>';
    }
  }
  return range;
};
export default TimelineHighlightRange;