[whatwg] I believe source rectangles for HTML5 Canvas drawImage are specified incorrectly

Kevin Gadd kevin.gadd at gmail.com
Tue Dec 18 07:12:14 PST 2012

Is it possible to expose the width/height of an ImageBitmap, or even
expose all the rectangle coordinates? Exposing width/height would be
nice for parity with Image and Canvas when writing functions that
accept any drawable image source.

Thanks for the prompt action here, this looks like a straightforward solution.


On Tue, Dec 18, 2012 at 7:03 AM, Justin Novosad <junov at chromium.org> wrote:
> Thanks Ian.
> http://html5.org/tools/web-apps-tracker?from=7588&to=7589
> On Tue, Dec 18, 2012 at 1:04 AM, Robert O'Callahan <robert at ocallahan.org>
> wrote:
>> On Tue, Dec 18, 2012 at 6:57 PM, Rik Cabanier <cabanier at gmail.com> wrote:
>>> Does it matter that this solution is in the image world and not 2d
>>> canvas? It seems that this will have a bigger impact on the browser's
>>> codebase since it spans images and canvas.
>> I think that's a good thing --- it's more generally useful.
>> Note that Ian has adopted this approach (via an ImageBitmap constructor).
>> Rob
>> --
>> Jesus called them together and said, “You know that the rulers of the
>> Gentiles lord it over them, and their high officials exercise authority over
>> them. Not so with you. Instead, whoever wants to become great among you must
>> be your servant, and whoever wants to be first must be your slave — just as
>> the Son of Man did not come to be served, but to serve, and to give his life
>> as a ransom for many.” [Matthew 20:25-28]


More information about the whatwg mailing list