I'd like to create a unified "SliderText" control, that maintains a
single numeric value, using both a slider and a text field (the
latter providing high precision, when required). Changing either
one should update the other, and notify clients of changes, and
actions, as normal controls would. I'd also like this pairing to be
as "self maintaining" as possible: I don't want the UI controller
(window, panel, etc.), to deal with any messages beyond those it
might receive from a single control. Also, creating one of these in
IB should be no harder than copy/pasting an existing paired control.
If you set up these controls in a window, then select them all, then
hold down the mouse and wait a moment, they will "pop out" and get a
shadow. Now you can drag them into the library, and from then on
you'll be able to easily drag them out to create new controls of this
type.
Of course, this means that if, one day, you realize you need an
additional field for each of these sliders, you'll have to manually
add it, which is less than optimal.
Your idea of using the container view to manage the slider and text
fields is a start, however you will want to do it differently: Use an
NSViewController (or if you need 10.4 support, roll your own
equivalent class -- I think there's a UKNibOwner class on my web site
as part of one of my downloads that does the same). Then you'll have
one NIB containing the sliders and text fields, and the view
controller will load that into the custom view. That way, if you want
an additional field, you can change one NIB, and all your windows will
follow suit.
Of course, for easier layouting, you may want to create an IBPlugin
for your custom slider.
Cheers,
-- M. Uli Kusterer
"The Witnesses of TeachText are everywhere..."
http://www.zathras.de
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