Hi Marcel,

Take a look at  
#windowFrame:color:radius:border:labelHeight:gradientTop:gradientBottom:insideColor: in Cuis. Besides anti aliasing, it also does  
gradients.

CornerRounder was one of the first things I removed when started Cuis.

Cheers,
Juan Vuletich

Quoting Marcel Taeumel <marcel.taeumel at student.hpi.uni-potsdam.de>:

> I think that the CornerRounder is not appropriate. It's a hack like its class
> comment sais. ;-)
>
> What about using the methods from FormCanvas to draw rounded rectangles? The
> result would be nicer because we could play with anti-aliasing:
>
> <http://forum.world.st/file/n4807342/window-corners.png>
>
> BUT: Pharo dismissed that interface from canvas and I was wondering, how
> portable it is. Canvas does not have it. Only FormCanvas has it:
>
> frameAndFillRoundRect: aRectangle radius: cornerRadius fillStyle: fillStyle
> borderWidth: bw borderColor: bc
> frameRoundRect: aRectangle radius: radius width: borderWidth color:
> borderColor
> fillRoundRect: aRectangle radius: radius fillStyle: fillStyle
>
> At the moment, PluggableButtons round their corners _without_ the
> CornerRounder but by using the canvas interface to draw rounded rectangles.
>
> Is performance an issue? Well, the corner rounder is quite hacky...
>
> Best,
> Marcel
>
> P.S.: The anti-aliasing trick works like this and may be slow:
>
> 	aCanvas
> 		frameRoundRect: self bounds
> 		radius: 7
> 		width: self borderWidth
> 		color: (self borderColor alpha: 0.5).
>
> 	aCanvas
> 		frameAndFillRoundRect: self bounds
> 		radius: 8
> 		fillStyle: self fillStyle
> 		borderWidth: self borderWidth
> 		borderColor: self borderColor.
>
> 	aCanvas
> 		frameRoundRect: self bounds
> 		radius: 9
> 		width: self borderWidth
> 		color: (self borderColor alpha: 0.3)
>
>
>
> --
> View this message in context:  
> http://forum.world.st/Speaking-of-rounded-corners-tp4807342.html
> Sent from the Squeak - Dev mailing list archive at Nabble.com.