On Feb 28, 2006, at 12:37 PM, Douglas Davidson wrote:
The methods you list above are those that the controls themselves
(such as NSTableView) implement to receive delegate messages from
the field editor; in these methods they then call out to their own
delegates using methods like control:textShouldBeginEditing:. If
you were implementing a table view subclass, you could override the
NSText delegate methods, but that would have to be done with great
care.
That was actually what prompted the question - more detail in a
separate followup shortly (since it feels like a separate topic.)
If I did subclass NSTableView, then the interface says I am only
guaranteed to get an NSText in the overridden method, but per your
statements below, this will be an NSTextView in all normal situations.
Can you elaborate on the "done with great care" part? Besides making
sure super gets the message as well when appropriate, what other
things are there to watch out for?
The other thing is that in the AppKit as it stands, NSText is an
abstract class; the concrete subclass used is NSTextView. The
distinction between NSText and NSTextView is a historical artifact,
and you may assume that field editors will be NSTextViews.
Thanks for the clarification.
Jim
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