On Sun, 13 May 2007 11:49:23 +0200, Anne van Kesteren <[EMAIL PROTECTED]>
wrote:
In a reply to a message from Mathieu Hixie indicated that you can create
your own ImageData objects easily in ECMAScript:
var data = { height:1, width:1, data:[0,0,0,0] }
context.putImageData(data, 0, 0)
I would like the specification to clarify how exactly these custom
ImageData objects are to be created and what an implementation hsa to do
with them. Several questions about these custom objects:
* What if it has missing members.
* What if it has additional members.
* What if the values of the members are incorrect.
- height contains a function
- data is a two-digit array
- etc.
* What if the combination of values of the members is
incorrect.
- height and width say 2, but data only contains a
four-digit array.
Oops. I was looking at the May 10 version of the specification. My
apologies. It would probably still be good to point out that you can
create ImageData objects yourself by making a simple ECMAScript object.
If this is indeed to be allowed (and it seems to work fine in Firefox)
this is an additional argument for not having a distinction between the
<canvas> "back end" grid and the actual <canvas> grid as people will
just assume they map one to one once it works that way in an
implementation they test in.
This point still stands.
(Given that you can create them yourself I'm not sure why ImageData has
readonly attributes, but maybe that would save some additional
checking...)
--
Anne van Kesteren
<http://annevankesteren.nl/>
<http://www.opera.com/>
