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@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.