canvas-lib v0.0.4

canvas-lib

Canvas library with a delightful API.

Feature

• support all kinds of shapes, draw with no side-effect
• group shapes support
• mouse event system
• transform, scale and translate canvas coordinate
• drag & drop shape
• support basic animation
• physical effects

API

See here

example

const canvas = new Canvas(document.querySelector('canvas'));

const rect = new Rect({
  x: 10,
  y: 20,
  width: 100,
  height: 100,
  fillStyle: 'blue',
});

rect.on('click', (e, shape) => {
  console.log('rect being clicked');
});

canvas.add(rect);

Design

• Canvas, shape container, add/remove/draw shape, event delegation and dispatch
• Shape, All concrete shape extends Shape, style、position property and shapes'events stored here
• Group, special Shape container, it stored shape added to it. and change it's property like style and position