On 08/07/2009, at 11:33 PM, I. Savant wrote:
[NSMenuItem setAttributedTitle:];
... and if you want to get really fancy (ie "modern"), you could
build the list with regular strings (just "setTitle:") relatively,
but use NSOperation/Queue to create / set the attributed titles with
the actual fonts in the background, replacing the plain-text ones.
I suggest this because grabbing a list of font name strings is
quicker than building an attributed string for each font. Do the
quick thing first so it's available, but do the longer fancy thing
in the background, updating while the UI is idling. Remember (99.9%
of) all AppKit-related stuff should be done on the main thread.
A good idea, though I think the menu delegate can save you even this
much effort. The docs are not explicit on this point, but a careful
reading suggests that:
- (BOOL)menu:(NSMenu *)menu updateItem:(NSMenuItem *)item atIndex:
(NSInteger)index shouldCancel:(BOOL)shouldCancel
is actually invoked on some sort of background thread/queue, so
implementing these methods (the above + numberOfItemsInMenu:) in your
menu delegate would allow you to update each item with the attributed
title fairly simply and it wouldn't drag your main thread's
performance down.
--Graham
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