Add existing to tracked

node_modules/@cesium/widgets/Source/Timeline/TimelineHighlightRange.js

@@ -0,0 +1,66 @@
+import { JulianDate } from "@cesium/engine";
+
+/**
+ * @private
+ */
+function TimelineHighlightRange(color, heightInPx, base) {
+  this._color = color;
+  this._height = heightInPx;
+  this._base = 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) {
+  let range = "";
+  if (this._start && this._stop && this._color) {
+    const highlightStart = JulianDate.secondsDifference(
+      this._start,
+      renderState.epochJulian,
+    );
+    let highlightLeft = Math.round(
+      renderState.timeBarWidth * renderState.getAlpha(highlightStart),
+    );
+    const highlightStop = JulianDate.secondsDifference(
+      this._stop,
+      renderState.epochJulian,
+    );
+    let 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;