fillText: \n (and \r\n) splits the text in different lines
#1.363 geöffnet am 26. Jan. 2019
Repository-Metriken
- Stars
- (9.524 Stars)
- PR-Merge-Metriken
- (Durchschn. Merge 34T 18h) (2 gemergte PRs in 30 T)
Beschreibung
Issue
In browsers, newlines (and carriage return, new line) do not split the rendered text into two lines but render as a space instead, however in canvas, this is not true and splits them. A web developer who has been working with web browsers's canvas would not expect fillText to have multi-line support.
Using the code:
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
ctx.font = '50px serif';
ctx.textAlign = 'center';
ctx.fillText('Hello world\ntext', 200, 90);
Gets us the same result in Chrome 71.0.3578.98, Edge 44.17763.1.0, and Firefox 64.0.2:
But canvas (with the adjustments made to use createCanvas()) does multi-line instead:
The lack of this consistency may confuse some developers (like me) when trying the code in back-end before deploying to front-end, or vice-versa, I am not sure if this was intended or not, as this is not mentioned in any of the non-standard features or variations from the browser canvas.
Steps to Reproduce
const Canvas = require('canvas');
// Create canvas
const canvas = Canvas.createCanvas(400, 150);
const ctx = canvas.getContext('2d');
ctx.font = '50px serif';
ctx.textAlign = 'center';
ctx.fillText('Hello world\ntext', 200, 90);
// write file using `canvas.toBuffer()`
Your Environment
- Version of node-canvas: 2.2.0
- Environment: Node.js 10.13.0 on Debian 9