[whatwg] Canvas: compositing and blending operator as enumeration?

Rik Cabanier cabanier at gmail.com
Wed Jan 9 21:29:28 PST 2013


Hi Dirk,

the 'globalCompositeOperation' property takes the same syntax as the css
'mix' so I don't think an enum will work.

Rik

On Wed, Jan 9, 2013 at 6:18 PM, Dirk Schulze <dschulze at adobe.com> wrote:

> Hi,
>
> After all the discussions about winding rules and the new introduced
> enumeration for "nonzero" and "even odd", I wonder if the the compositing
> and blending modes should be two enumerations as well.
>
> enum CanvasCompositingMode {
>         "source-over",
>         "source-in",
>> }
>
> and
>
> enum CanvasBlendingMode {
>         "normal",
>         "multiply",
>         ...
> }
>
> This wouldn't actually change the behavior or definition a lot, but might
> help to cleanup a bit. I am happy about other names if they are not good
> enough.
>
> Greetings,
> Dirk



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