Re: Amaya 10 .1-pre2 Screen Refresh Problems

Le mercredi 09 juillet 2008 à 13:45 +0100, Helder Magalhães a écrit :
> > I just switched from 10.1-pre1 to 10.1-pre2 and it's now unusable due to
> > problems with the display. As you scroll up and down or try to update a
> > document by typing, bits of the document appear incorrectly in rectangular
> > areas in the main editing area.
> 
> Not sure if you are experiencing the same issue but I've confirmed
> something which looks similar and can always be reproduced:
> 
> Steps to reproduce:
> 1. Open Amaya home page [1] within Amaya;
> 2. Place the cursor before the W3C logo (or before any image,
> afterwards doesn't reproduce symptom);
> 3. Type some text (without pressing space nor causing line wrapping).
> 
> Expected results:
> Text typed would cause image contents to be pushed (to the right)
> along with text.
> 
> Actual results:
> Only a part of images are moved along with text, causing a weird visual effect.

Right, this is a problem with the size of the refreshed area.

> 
> Notes:
> Without much digging, I'd say this seems related to a canvas
> invalidation issue: only a partial area, whose height equals typed
> text, is invalidated. Remaining portion of canvas is left intact until
> a "major" update (such as pressing space or scrolling, for example) is
> performed.
> Attached image shows the experienced symptom.
> 
> Workaround:
> This symptom seems to vanish once a "major" repaint operation is
> triggered. This can be made, for example, through:
>  * Pressing space while typing;
>  * Scroll operation (using middle mouse button or the scroll bars).
> 
> Environment:
> Operating System - Windows XP SP3;
> Amaya version - amaya 10.1 (Jul 2 2008).
> 
> 
> Regards,
> 
>  Helder Magalhães
> 
> [1] http://www.w3.org/Amaya/
-- 
Irene Vatton <Irene.Vatton@inria.fr>
INRIA

Received on Wednesday, 9 July 2008 14:58:35 UTC