chore: refactor

Author: farfromrefug

src/ui-chart/charts/Chart.ts

@@ -202,7 +202,7 @@ export abstract class Chart<U extends Entry, D extends IDataSet<U>, T extends Ch
             this.invalidate();
         });
 
-        this.xAxis = new XAxis();
+        this.xAxis = new XAxis(new WeakRef(this));
 
         if (Trace.isEnabled()) {
             CLog(CLogTypes.log, this.constructor.name, 'init()');

src/ui-chart/components/XAxis.ts

@@ -1,5 +1,6 @@
 import { AxisBase } from './AxisBase';
 import { Utils } from '../utils/Utils';
+import { Chart } from '../charts/Chart';
 
 /**
  * enum for the position of the x-labels relative to the chart
@@ -60,8 +61,8 @@ export class XAxis extends AxisBase {
      */
     position = XAxisPosition.TOP;
 
-    constructor() {
-        super();
-        this.yOffset = 4; // -3
+    constructor(chart: WeakRef<Chart<any, any, any>>) {
+        super(chart);
+        this.yOffset = 4;
     }
 }