On Sep 25, 2008, at 10:37 PM, Ken Thomases wrote:
On Sep 25, 2008, at 9:18 PM, Graham Cox wrote:
On 26 Sep 2008, at 10:24 am, Gerd Knops wrote:
I would like to use a key other than "tab" to advance to the next
text field, so that users can use a numeric keypad to enter
something like "11-22-33" and have 11, 22 and 33 end up in
different text fields.
I'd suggest not using a different key from 'Tab', since that's very
much hardwired into every Mac user.
Alternative, why not just detect when the field has the required
number of characters and move to the next field automatically? For
numeric entry this is much more user-friendly.
For implementing such a thing, see -[NSWindow selectNextKeyView:].
I know how to do that part. The tricky part is intercepting and
filtering the '-' key. given field editors etc.
One approach I tried was to implement -validateValue:forKey:error: and
intercept the key values of the fields I am interested in, testing for
a '-' as last character, removing it and advancing to the next key
field. That works (after setting the involved bindings to
'Continuously updates value' and 'Verify immediately'), but for some
odd reason when the '-' character is entered that method is called
twice, causing it to skip a field. I hoped to avoid having to also add
connections for the individual views so that I can find the next key
view for the key field in question, but it seems to be the least
bothersome approach at that point.
Thanks
Gerd
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