[gcompris-devel] Small display bug

[Olivier Samyn]

Isn't there a way to put two canvas items at the same location and use
something like visibility swap (hide/unhide the good one) ? 

Just an idea... I'm not already enought familiar with gnome canvas...

Olivier

Le mer 12/02/2003 à 22:28, bruno a écrit :
> I agree, it is the solution but the canvas item does not allow to save
> in it 2 images. 
> If we have to do it externally, it makes the programming more
> complex/less intuitive.
> What we should do is to create an extented canvas item that would
> support that.
> 
> Have you a simple solution ?
> 
> Bruno.
> 
> 
> Le mer 12/02/2003 à 21:54, pgeorges a écrit :
> > I looked quickly to the code : if the count of enter/leave mouse events 
> > is not reliable, why not keep 2 versions of the image, one clear, and 
> > one darkened and swap between them ?
> > That way, the worst case occurs when the displayed image does not 
> > correspond to where the mouse is, which will be corrected when the mouse 
> > moves again. So there won't be any too darkened image possibility.
> > 
> > Moreover this solution is less CPU intensive.
> > 
> > Pascal
> > 
> > bruno wrote:
> > > Yes, I am aware of this issue. Unfortunatly, it is not easy to fix.
> > > 
> > > Let me describe what happens, is that the gnome canvas does not return
> > > the proper number of enter/exit event when we click on a button.
> > > You can trace the problem in gameutil:gcompris_item_event_focus
> > > 
> > > On my mandrake 9, to reproduce it, I have to click on a button while
> > > moving the mouse out of the button (like drag&drop).
> > > 
> > > I tried several times to fix that without success.
> > > 
> > > There is probably a solution, help is welcome.
> > > 
> > > Bruno.
> > > 
> > > Le dim 09/02/2003 à 19:48, pgeorges a écrit :
> > > 
> > >>when entering and leaving many times the different board collections 
> > >>using the home icon (bottom right), this icon gets darker and darker.
> > >>I don't want to dig into code, but I suppose Bruno you've got the 
> > >>solution :-)
> > >>
> > >>Note that I switched all wav files to ogg, making gcompris work better 
> > >>with my current configuration (otherwise I missed some short sounds) ...
> > >>
> > >>Pascal
> > 
> > 
> > 
> > 
> > 
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> 
> 
> 
> 
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-- 
Olivier Samyn <osamyn at ulb.ac.be>