Pie Chart

Beautiful charts. Built using chartjs and react-chartjs-2. Copy and paste into your apps or run the command into your CLI.

1. Install utilities

You need to install some necessary packages to use the below Pie Charts. Please run the command into your terminal.

bun add chart.js react-chartjs-2

2. Setup files

Create a file named as chart-utils.ts inside your lib folder and paste the code.

"use client";

import { useTheme } from "next-themes";
import { useEffect, useState } from "react";

export type ChartColors = {
  primary: string;
  secondary: string;
  tertiary: string;
  quaternary: string;
  quinary: string;
  senary: string;
  background: string;
  grid: string;
  text: string;
};

export function useChartColors(): ChartColors {
  const { theme } = useTheme();
  const [colors, setColors] = useState<ChartColors>({
    primary: "rgb(99, 102, 241)",
    secondary: "rgb(168, 85, 247)",
    tertiary: "rgb(249, 115, 22)",
    quaternary: "rgb(34, 197, 94)",
    quinary: "rgb(239, 68, 68)",
    senary: "rgb(6, 182, 212)",
    background: "rgb(255, 255, 255)",
    grid: "rgb(243, 244, 246)",
    text: "rgb(17, 24, 39)",
  });

  useEffect(() => {
    if (theme === "dark") {
      setColors({
        primary: "rgb(129, 140, 248)",
        secondary: "rgb(192, 132, 252)",
        tertiary: "rgb(251, 146, 60)",
        quaternary: "rgb(74, 222, 128)",
        quinary: "rgb(248, 113, 113)",
        senary: "rgb(34, 211, 238)",
        background: "rgb(17, 24, 39)",
        grid: "rgb(55, 65, 81)",
        text: "rgb(243, 244, 246)",
      });
    } else {
      setColors({
        primary: "rgb(99, 102, 241)",
        secondary: "rgb(168, 85, 247)",
        tertiary: "rgb(249, 115, 22)",
        quaternary: "rgb(34, 197, 94)",
        quinary: "rgb(239, 68, 68)",
        senary: "rgb(6, 182, 212)",
        background: "rgb(255, 255, 255)",
        grid: "rgb(243, 244, 246)",
        text: "rgb(17, 24, 39)",
      });
    }
  }, [theme]);

  return colors;
}

export const months = [
  "January",
  "February",
  "March",
  "April",
  "May",
  "June",
  "July",
  "August",
  "September",
  "October",
  "November",
  "December",
];

export const categories = [
  "Desktop",
  "Mobile",
  "Tablet",
  "Smart TV",
  "Wearables",
  "Other",
];

export const pieCategories = [
  "Product A",
  "Product B",
  "Product C",
  "Product D",
  "Product E",
];

export const generateRandomData = (count: number, max: number, min = 0) => {
  return Array.from({ length: count }, () =>
    Math.floor(Math.random() * (max - min + 1) + min)
  );
};

export const generatePieColors = (colors: ChartColors) => [
  colors.primary,
  colors.secondary,
  colors.tertiary,
  colors.quaternary,
  colors.quinary,
  colors.senary,
];

export const createGradient = (
  ctx: CanvasRenderingContext2D,
  color: string,
  opacity = 0.2
) => {
  const gradient = ctx.createLinearGradient(0, 0, 0, 400);
  gradient.addColorStop(
    0,
    color.replace("rgb", "rgba").replace(")", `, ${opacity})`)
  );
  gradient.addColorStop(1, color.replace("rgb", "rgba").replace(")", ", 0)"));
  return gradient;
};