Re: How to join two controls together?
Re: How to join two controls together?
- Subject: Re: How to join two controls together?
- From: Erik Thorteran <email@hidden>
- Date: Sun, 4 Nov 2001 10:16:07 -0800
Yes, it will, i tried this. Worked fine for me, also
controlTextIsChanging it a delegate method that NSTextField calls
(bottom of the documentation).
Erik
On Sunday, November 4, 2001, at 09:40 AM, email@hidden wrote:
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.
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