On Dec 4, 2009, at 10:54 PM, Grant Erickson wrote:
> Thanks for the prompt reply. I forgot to mention one key element. The
> subclass must support 10.4- and later so I cannot rely on 10.5- and later
> APIs such as this.
In that situation I’d probably write (and test!)
if ([self respondsToSelector: @selector(interiorBackgroundStyle)]) {
… compute text color from background style ...
} else {
… best effort text color calculation ...
}
Hopefully sometime soon the 10.4 branch can just go away.
(If you have an existing product which already targets 10.4, changing the
system requirements for something like this seems drastic. However, if you are
developing a new product, you may want to seriously consider whether you really
need to support Tiger, and the opportunity cost of doing so.)
Jim_______________________________________________
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