https://github.com/magicien/undo-canvas

Add undo/redo functions to CanvasRenderingContext2D
https://github.com/magicien/undo-canvas

canvas canvasrenderingcontext2d undo-redo

Last synced: about 2 months ago
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Add undo/redo functions to CanvasRenderingContext2D

• Host: GitHub
• URL: https://github.com/magicien/undo-canvas
• Owner: magicien
• License: mit
• Created: 2017-09-04T02:06:26.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2019-10-29T03:19:49.000Z (about 5 years ago)
• Last Synced: 2024-10-28T22:43:49.896Z (2 months ago)
• Topics: canvas, canvasrenderingcontext2d, undo-redo
• Language: JavaScript
• Size: 18.6 KB
• Stars: 36
• Watchers: 2
• Forks: 9
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

        
# undo-canvas

Add undo/redo functions to CanvasRenderingContext2D

[Online Demo 1](https://magicien.github.io/undo-canvas/demo.html) / [Demo 2](https://magicien.github.io/undo-canvas/demo2.html)

```

const canvas = document.createElement('canvas')

const context = canvas.getContext('2d')

UndoCanvas.enableUndo(context)

context.strokeStyle = '#ff0000'

context.beginPath()

context.moveTo(0, 0)

context.lineTo(30, 30)

context.closePath()

context.stroke()

context.undo() // erase the line

context.redo() // redraw the line

UndoCanvas.disableUndo(context)

```

## Install

### Node

```

npm install --save undo-canvas

```

### Browser

```

```