[whatwg] Clipping text in in canvas

Rik Cabanier cabanier at gmail.com
Sun Sep 15 17:05:52 PDT 2013

I think that by 'clipping region', the spec means the 'region that is not

You can clip anything (including text) in canvas. ie

On Sun, Sep 15, 2013 at 8:38 AM, Jasper St. Pierre <jstpierre at mecheye.net>wrote:

> The canvas specification maintains:
>     These shapes are painted without affecting the current path, and are
> subject to shadow effects, global alpha, the clipping region, and global
> composition operators. [0]
> But no browsers I tested actually implement the "clipping region" part.
> Should this be removed for backwards compatibility reasons? Should we
> introduce a new method of clipping text be introduced, or should we just
> require users who want to draw clipped text to draw to a scratch canvas and
> use drawImage to copy the pixels?
> [0]
> http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#drawing-text-to-the-bitmap
> --
>   Jasper

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