1 files changed, 89 insertions, 0 deletions
diff --git a/server/sonar-web/src/main/js/components/charts/DonutChart.tsx b/server/sonar-web/src/main/js/components/charts/DonutChart.tsx
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+++ b/server/sonar-web/src/main/js/components/charts/DonutChart.tsx
@@ -0,0 +1,89 @@
+/*
+ * SonarQube
+ * Copyright (C) 2009-2021 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+import { arc as d3Arc, pie as d3Pie, PieArcDatum } from 'd3-shape';
+import * as React from 'react';
+
+interface DataPoint {
+  fill: string;
+  value: number;
+}
+
+export interface DonutChartProps {
+  data: DataPoint[];
+  height: number;
+  padAngle?: number;
+  padding?: [number, number, number, number];
+  thickness: number;
+  width: number;
+}
+
+export default function DonutChart(props: DonutChartProps) {
+  const { height, padding = [0, 0, 0, 0], width } = props;
+
+  const availableWidth = width - padding[1] - padding[3];
+  const availableHeight = height - padding[0] - padding[2];
+
+  const size = Math.min(availableWidth, availableHeight);
+  const radius = Math.floor(size / 2);
+
+  const pie = d3Pie<any, DataPoint>()
+    .sort(null)
+    .value(d => d.value);
+
+  if (props.padAngle !== undefined) {
+    pie.padAngle(props.padAngle);
+  }
+
+  const sectors = pie(props.data).map((d, i) => {
+    return (
+      <Sector
+        data={d}
+        fill={props.data[i].fill}
+        // eslint-disable-next-line react/no-array-index-key
+        key={i}
+        radius={radius}
+        thickness={props.thickness}
+      />
+    );
+  });
+
+  return (
+    <svg className="donut-chart" height={height} width={width}>
+      <g transform={`translate(${padding[3]}, ${padding[0]})`}>
+        <g transform={`translate(${radius}, ${radius})`}>{sectors}</g>
+      </g>
+    </svg>
+  );
+}
+
+interface SectorProps {
+  data: PieArcDatum<DataPoint>;
+  fill: string;
+  radius: number;
+  thickness: number;
+}
+
+function Sector(props: SectorProps) {
+  const arc = d3Arc<any, PieArcDatum<DataPoint>>()
+    .outerRadius(props.radius)
+    .innerRadius(props.radius - props.thickness);
+  const d = arc(props.data) as string;
+  return <path d={d} style={{ fill: props.fill }} />;
+}