<seven-segment> A Segmented Display Web Component

 

---

This webcomponent follows the open-wc recommendation.

Storybook Documentation

Design Goals

🎨 HTML Canvas Render using HTMLCanvas

🍦 Vanilla Web Component Export as a dependency-free vanilla web component, usable with just HTML, CSS, and JS

#️⃣ Typescript Written in Typescript

🌈 Styles Offer fully customizable styling. Where possible use CSS to control customized settings

🧾 Support CSS props CSS properties like padding, margin, filters, etc., should affect the element as expected

🔎 Pan & Zoom Support ability to zoom in and change center point of the board

🌐 Accessibility Implement accessibility recommendations. WCAG, WAI-ARIA

🕹️ Interactivity Support user interactivity features including touch input, hover, selection, highlighting, and clicking.

Installation

npm i @dartbot/segment

Usage

<script type="module">
  import '@dartbot/segment/seven-segment.js';
</script>

<seven-segment></seven-segment>

Linting and formatting

To scan the project for linting and formatting errors, run

npm run lint

To automatically fix linting and formatting errors, run

npm run format

Testing with Web Test Runner

To execute a single test run:

npm run test

To run the tests in interactive watch mode run:

npm run test:watch

Demoing with Storybook

To run a local instance of Storybook for your component, run

npm run storybook

To build a production version of Storybook, run

npm run storybook:build

Tooling configs

For most of the tools, the configuration is in the package.json to reduce the amount of files in your project.

If you customize the configuration a lot, you can consider moving them to individual files.

Local Demo with web-dev-server

npm start

To run a local development server that serves the basic demo located in demo/index.html

To Do

• Set Format
  • char masks
  • align
• Export Image
  • standard
  • large size
• Auto color calc
• Create your own
• Styles (shadow, glow)
• Effects
  • marquee, blink, rotate, rotate fill
• Additional segments
  • 16, 14, Posey
• Accessibility https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/canvas#maximum_canvas_size
• Unit Tests