Cocoa text auto-scale?

Is there a way to get a text label or similar object to auto-scale with the container window? That is, as the window grows, I want the text size to grow to fill all available space without clipping, and to shrink back down again as the window shrinks. I'm sure I could do some sort of calculation based on font metrics and the displayed string to figure out the best size based on the window, and then somehow tie that into when the user resizes the window, but is there a better/easier method? Thanks.

RayNewbie wrote:
I would register for the [NSWindowDidResizeNotification|http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Application Kit/Classes/NSWindowClass/Reference/Reference.html#//appleref/doc/uid/20000013-BCIIHIHC], which is posted continuously as the window is resized.
This seems to work perfectly to get the visual result, and is precisely what I was thinking of. Thanks.
RayNewbie wrote:
In any case, this Wil Shipley blog might be of interest to you. Note the example code seems to be manually calculating the point size: [Pimp My Code, Part 6: The Pimp Before Christmas|http://www.wilshipley.com/blog/2005/12/pimp-my-code-part-6-pimp-before.html].
Definitely helpful, primarily in that their method of calculating the font size is noticeably more efficient than what I had come up with. Still inefficient though- processor usage spikes to around 50% on my mac mini 2.0 core2duo machine when resizing the window. I suppose it might not be too big a deal, but I'd hate to see window resizing lag on slower or more heavily loaded machines. I'm not sure there's much choice when doing a live resize, however- waiting to resize the text until the window resize is completed would look horrible.
Hope that helps!
\- Ray

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Attachments:
XY Graph 2.jpg ‏370 KB
XY Graph Autoscale bug.vi ‏9 KB
XY Graph 1.jpg ‏116 KB

Here are the additional attachments
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Attachments:
XY Graph 3.jpg ‏124 KB
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