fix: CombinedChart supports custom renderer

src/charting/charts/CombinedChart.ts

@@ -7,6 +7,13 @@ import { CombinedDataProvider } from '../interfaces/dataprovider/CombinedDataPro
 import { IDataSet } from '../interfaces/datasets/IDataSet';
 import { BarLineChartBase } from './BarLineChartBase';
 import { CombinedChartRenderer } from '../renderer/CombinedChartRenderer';
+import { CustomRenderer as BBCustomRenderer } from './BubbleChart';
+import { CustomRenderer as CSCustomRenderer } from './CandleStickChart';
+import { CustomRenderer as BCustomRenderer } from './BarChart';
+import { CustomRenderer as LCustomRenderer } from './LineChart';
+import { CustomRenderer as SCustomRenderer } from './ScatterChart';
+
+export type CustomRenderer = BBCustomRenderer & CSCustomRenderer & BCustomRenderer & LCustomRenderer & SCustomRenderer;
 
 /**
  * enum that allows to specify the order in which the different data objects
@@ -219,4 +226,18 @@ export class CombinedChart extends BarLineChartBase<Entry, BarLineScatterCandleB
             this.mMarker.draw(c, pos[0], pos[1]);
         }
     }
+
+    mCustomRenderer: CustomRenderer;
+    /**
+     * set a custom line renderer
+     */
+    public setCustomRenderer(renderer: CustomRenderer) {
+        this.mCustomRenderer = renderer;
+    }
+    /**
+     * get the custom line renderer
+     */
+    public getCustomRenderer() {
+        return this.mCustomRenderer;
+    }
 }

src/charting/renderer/CombinedChartRenderer.ts

@@ -1,5 +1,4 @@
 import { ChartAnimator } from '../animation/ChartAnimator';
-import { Chart } from '../charts/Chart';
 import { CombinedChart, DrawOrder } from '../charts/CombinedChart';
 import { ViewPortHandler } from '../utils/ViewPortHandler';
 import { DataRenderer } from './DataRenderer';
@@ -8,11 +7,8 @@ import { BarChartRenderer } from './BarChartRenderer';
 import { BubbleChartRenderer } from './BubbleChartRenderer';
 import { CandleStickChartRenderer } from './CandleStickChartRenderer';
 import { ScatterChartRenderer } from './ScatterChartRenderer';
-import { BarLineChartBase } from '../charts/BarLineChartBase';
-import { Entry } from '../data/Entry';
 import { Canvas } from '@nativescript-community/ui-canvas';
 import { Highlight } from '../highlight/Highlight';
-import { CombinedData } from '../data/CombinedData';
 /**
  * Renderer class that is responsible for rendering multiple different data-types.
  */