Cedric wrote:
> I did some test around this and I think it came from the fact that
> o->dirty_pixels is not set to 1 after the second call to
> evas_object_image_size_set. A quick fix for your example is to call
> evas_object_image_pixels_dirty_set just after
> evas_object_image_size_set. I currently don't know enough to properly
> fix evas, but this could help others find the right solution.
>
Well, the semantics of the image-size-set function has always
been that if there is no data or file for the image, it will create
data of the requested size, and if there is data (possibly from a
file), it will create new data of the requested size and copy as much
as possible of the current data to the new one and then set that new
one as the current data.
So, for the test program there, after the inital rendering
(of a blue area), when the resize is called the image would have
new data (not the provided pixels) one pixel less in width, so the
subsequent ecore induced rendering would still show the same result
(even though there's no further call to 'set data' as the callback
won't get triggered since 'dirty pixels' isn't called again, and
it's been unset after the first rendering).
This would seem to show some new problem with the 'image-resize'
function when external data has been set before on the image.. and
indeed if I get rid of the pixels callback and simply set the data
(after the initial image size setting), then the problem is still
there even without the first call to evas render.. ie. the second
call to image-size-set seems to be the culprit.
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