Package Exports

canvas-txt

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Readme

Canvas Txt 📐✍

Better way to render text on the HTML5 Canvas

NPM NPM NPM

A Miniscule library to render text on HTML5 Canvas with ZERO dependencies 🆎

Features

Multiline text
Auto line breaks
Horizontal Align
Vertical Align
Easy Debugging

Demo

See Demo: Here

Install

npm install canvas-txt --save

or

yarn add canvas-txt

Usage

<canvas id="myCanvas" width="500" height="500"></canvas>

Webpack

import canvasTxt from 'canvas-txt'

var c = document.getElementById('myCanvas')
var ctx = c.getContext('2d')

var txt = 'Lorem ipsum dolor sit amet'

canvasTxt.fontSize = 24

canvasTxt.drawText(ctx, txt, 100, 200, 200, 200)
//canvasTxt.drawText(ctx,txt,x,y,width,height);

CDN

See fiddle : here

<script src="//unpkg.com/canvas-txt"></script>

var canvasTxt = window.canvasTxt.default
/// ...remaining same as webpack

Properties

Properties	Default	Description
`debug`	`false`	Shows the border and align gravity for debugging purposes
`align`	`center`	Text align. Other possible values: `left`, `right`
`vAlign`	`middle`	Text vertical align. Other possible values: `top`, `bottom`
`fontSize`	`14`	Font size of the text in px
`font`	`Arial`	Font family of the text
`lineHeight`	`null`	Line height of the text, if set to null it tries to auto-detect the value

Methods

Method	Description
`drawText(ctx,text,x,y,width,height)`	To draw the text to the canvas

Example

import canvasTxt from 'canvas-txt'

var c = document.getElementById('myCanvas')
var ctx = c.getContext('2d')

//You can use \n to define custom line breaks
var txt = 'Lorem \nipsum dolor sit amet'

//You can also use other methods alongside this
ctx.fillStyle = '#ff0000' //red color text

canvasTxt.font = 'Verdana'
canvasTxt.fontSize = 20
canvasTxt.align = 'left'
canvasTxt.lineHeight = 60
canvasTxt.debug = true //shows debug info
canvasTxt.drawText(ctx, txt, 100, 200, 200, 200)