Headless Chart

A powerful chart library built on top of the Flitter framework that provides a headless way to define and compose charts. Unlike traditional chart libraries where you are constrained by predefined components, headless-chart gives you building blocks that you can shape and style to meet your exact needs.

Why Headless Chart?

• Full Control: Instead of tweaking chart options, you directly modify widget structures using Flitter's widget system
• Framework Agnostic: Works seamlessly with vanilla JavaScript/TypeScript or any UI framework
• Flexible Rendering: Supports both SVG and Canvas rendering out of the box
• React Integration: Easy integration with React through @meursyphus/flitter-react

Quick Start

# Create a new Vite project
npm create vite@latest my-chart-app -- --template react
cd my-chart-app

# Install dependencies
npm install @meursyphus/flitter @meursyphus/headless-chart @meursyphus/flitter-react

Basic Usage

import ReactWidget from "@meursyphus/flitter-react";
import { BarChart } from "@meursyphus/headless-chart";

export default function App() {
  const chart = BarChart({
    data: {
      labels: ["January", "February", "March"],
      datasets: [
        { legend: "Sales", values: [150, 200, 170] }
      ],
      title: "Monthly Sales"
    }
  });

  return (
    <ReactWidget 
      width="600px" 
      height="400px" 
      widget={chart} 
      renderer="svg" 
    />
  );
}

Custom Chart Example

import { BarChart } from "@meursyphus/headless-chart";
import { Text, Container, BoxDecoration } from "@meursyphus/flitter";

const customConfig = {
  bar: ({ value, label, legend }) => {
    return Container({
      width: 20,
      height: value * 2,
      decoration: new BoxDecoration({ 
        color: legend === "Sales" ? "blue" : "gray" 
      }),
      child: Text(`${value}`, { 
        style: { fill: "white" } 
      })
    });
  },
  title: ({ name }) => {
    return Text(name, { 
      style: { fontSize: 18, fontWeight: "bold" } 
    });
  }
};

const chart = BarChart({
  data: {
    title: "Customized Sales Chart",
    labels: ["Jan", "Feb", "Mar"],
    datasets: [
      { legend: "Sales", values: [150, 200, 170] }
    ]
  },
  custom: customConfig
});

Documentation

Visit our documentation to learn more about:

• Detailed installation guides
• Framework integrations
• Chart customization
• Advanced examples

Examples

Check out our interactive examples to see what you can build with headless-chart.

License

MIT