Re: Displaying live NSSlider value
Re: Displaying live NSSlider value
- Subject: Re: Displaying live NSSlider value
- From: Omar Qazi <email@hidden>
- Date: Tue, 17 Jun 2008 14:42:17 -0700
On Jun 17, 2008, at 1:19 PM, Andy Klepack wrote:
I have an NSSlider and while the drag is in progress I would like to
display the value in a text field. When the drag completes I would
like the new value to get set in the user preferences and an action
executed.
As far as I can tell I'll have to set the slider to send its action
continually in order to find out that value has changed. If that's
so then I would need a way to determine whether the drag had
completed and then behave appropriately.
Am I wrong, is there actually some sort of delegate method like
"valueDidChange:" that could be used to differentiate the drag
events from the drag-complete event? If I do have to do the
determination in the action itself how would I find out that the
drag completed?
This is probably a common usage pattern for a slider but I haven't
found any previous discussion. Ideally I'd like to display the value
and its changes in a tooltip as the user drags but that also has
proven difficult to do.
Bindings? Perhaps I didn't understand your question, since nobody else
has suggested this, but couldn't you bind the value of the slider to a
controller, and it set the user preferences / execute the action in
the accessor method?
Omar Qazi
Hello, Galaxy!
1.310.294.1593
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