Re: How to join two controls together?
Re: How to join two controls together?
- Subject: Re: How to join two controls together?
- From: email@hidden
- Date: Sun, 4 Nov 2001 18:40:49 +0100
Thanks for your answer, but what is "controlTextIsChanging"? I can't find
it anywhere in the frameworks (nor "control:textIsChanging").
Anyway if the stepper sends its action to the NSTextField, the delegate
will not be informed, will it? that's why "controlTextDidChange" does not
work in that case.
Le dimanche 4 novembre 2001, ` 05:35 , Erik Thorteran a icrit :
Howdy, the way I would do it is (as you said) make them outlets of each
other and takeFloatValue from one-another. However, i would make your
eventual target the /delegate/ of the NSTextField, and wait for
controlTextIsChanging, and then you get what you are expecting. However,
you would have a bunch of things to take into account. Alternatively,
group the two as a custom view, and make the custom view a
TLRStepperTextField and have the NSTextField's delegate be the
TLRStepperTextField, and then have the TLRStepperTextField pass on the
info to it's target. Two alternative solutions, both with advantages and
disadvantages. Try one and report back!
Erik
On Saturday, November 3, 2001, at 03:18 AM, email@hidden wrote:
Hi Cocoa gurus,
This is more a question about OO style in Cocoa+IB+PB but I can't find a
satifactory solution.
I would like to have two controls "joined together" (don't know if this
sounds correct in english, sorry). Namely I have a NSTextField
(containing a number) and a NSStepper (allowing to change this number
easily). It is rather easy (but cumbersome) to have them working
correctly: both should have the same action, target the controller, and
the controller would ensure that they keep the same value internally.
But this doesn't look like the "right" way. I would like to have them
behave as a unique control (which they rreally are). This is rather
important for me, because I have a lot of such pairs in my app. For each
pair I need two outlets in the controller, and the action is more
complicated.
Here are the difficult things (for me). I just don't know how to do that.
Sure I can subclass NSControl, or NSTextField (though this one it's
difficult), but how to have the stepper drawn and working as expected?
And would it be possible to have IB handle the connections for this
object?
Note: I already tried the following: each control is the target of the
other, with action "takeFloatValueFrom:"; and the controller listen the
notification "controlTextDidChange". But this doesn't work as expected,
since the changes in NSStepper are not continuously taken into account
(the notification is not sent: you have to hit enter in the text field).
Thomas Lachand-Robert
********************** email@hidden
<< Et le chemin est long du projet ` la chose. >> Molihre, Tartuffe.
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Thomas Lachand-Robert
********************** email@hidden
<< Et le chemin est long du projet ` la chose. >> Molihre, Tartuffe.