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Re: [css3-images] paint sources

From: Leif Arne Storset <lstorset@opera.com>
Date: Mon, 06 Feb 2012 10:29:25 +0100
To: www-style@w3.org
Message-ID: <op.v883bb0ctmo5g6@localhost.localdomain>
Tab Atkins Jr. <jackalmage@gmail.com> skreiv Mon, 06 Feb 2012 10:14:31  
+0100

> On Sun, Feb 5, 2012 at 10:31 AM, L. David Baron <dbaron@dbaron.org>  
> wrote:
>> http://dev.w3.org/csswg/css3-images/#element-reference
>> (Overview.html revision 1.269) says the following:
>>
>>  # Host languages may define that some elements provide a paint
>>  # source. Paint sources have an intrinsic width, height, and
>>  # appearance, separate from the process of rendering, and so may
>>  # be used as images even when they're not being rendered. Examples
>>  # of elements that provide paint sources are the <linearGradient>,
>>  # <radialGradient>, and <pattern> elements in SVG, or the <img>,
>>  # <video>, and <canvas> elements in HTML.
>>
>> Given that the SVG and HTML specifications don't currently define
>> that these elements provide a paint source, I think *this*
>> specification should define that they provide a paint source, and
>> define how they do.  It can still allow other languages to add
>> defintions, and future levels of HTML and SVG to revise theirs.
>
> HTML defines that <img>, <video>, and <canvas> provide paint sources
> (go to the section for each element, and search for "paint source").

Note that only the WHATWG version of HTML5 talks about paint sources. I  
don't know whether this is a problem.

-- 
Leif Arne Storset
Core Technology Developer, Opera Software
Oslo, Norway
Received on Monday, 6 February 2012 09:30:20 GMT

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