Re: Drawing gradients in views
Re: Drawing gradients in views
- Subject: Re: Drawing gradients in views
- From: Matt Gemmell <email@hidden>
- Date: Tue, 28 Jan 2003 03:26:01 +0000
On Tuesday, January 28, 2003, at 02:52 am, Ian G. Gillespie wrote:
Does anyone know if it possible to fill an NSRect with a gradient. I
envision creating a rectangle that looks like the ones in iCal, they
have that smooth color gradient. I have figured out how to create
shadows for my rectangles, but don't know how to do a gradient.
If you happen to be using an NSButton, or subclass of it, it seems to
have a very basic -setGradientType: method, but only for black-white
gradients. I think you'd need to draw the gradients manually otherwise.
Also, I have tried to figure out how to draw a rect with rounded
corners but haven't had any luck. I found this
http://lists.apple.com/archives/cocoa-dev/2001/Aug/28/
drawingroundedrect.002.txt in the archives, but it didn't work for me.
My rectangles weren't rectangles at all!
I'm not experienced in this, but I imagine you'd have to play with
NSBezierPath's lineJoinStyle and lineCapStyle, at least for very
shallow rounded corners.
For more pronounced roundness, you'd probably need to use
-curveToPoint:... and -relativeCurveToPoint:... and do the rounded bits
yourself. See the docs for NSBezierPath for more on this. I'm also
fairly sure that Scott's book (Cocoa Programming,
www.cocoaprogramming.net) has a specific example of using
curveToPoint:... with a certain radius etc.
Best,
-Matt
--
Matt Gemmell
Scotland Software
http://www.scotlandsoftware.com/
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