Re: See-through custom NSView

FROM : Pascal Pochet
DATE : Wed Jul 19 17:45:10 2006

Le 19-juil.-06 à 17:11, Michael Lutz a écrit :

> Hello all,
>
> thanks to all who helped solving this issue. Either solution 
> (Stephanes/Andreas and Pascals) works. It seems that when using 
> NSBezierPath for filling the Rect or, when not filling the Rect at 
> all, one has to go with the ClipView.
>
> While I am glad that it's working now, has anybody hints on what's 
> technically going on there (pointers to documentation), why 
> NSBezierPath works differntly to NSRectFill? As it seems I have 
> some knowledge gaps there...
>
> Thanks again,
>  Michael
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NSRectFill uses NSCompositeCopy
when
[NSBezierPath fill] uses the current graphics context's one, which is 
by default NSCompositeSourceOver

add
NSLog(@"%d %d",[[NSGraphicsContext currentContext] 
compositingOperation],NSCompositeCopy)    ;
in your drawRect to see by yourself…

2006-07-19 17:40:44.506 ClearView[27284] 2 1


Pascal Pochet
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