Re: Validating a NSSegmentedControl in a toolbar
Re: Validating a NSSegmentedControl in a toolbar
- Subject: Re: Validating a NSSegmentedControl in a toolbar
- From: Joar Wingfors <email@hidden>
- Date: Thu, 4 Jun 2009 18:29:09 -0700
On 4 jun 2009, at 18.10, Graham Cox wrote:
There's a note in the documentation for -validateToolbarItem: that
"NSToolbar only calls this method for image items", which might
explain it. So what do I need to do to make this work for the
segmented control? I've read all the toolbar and validation
documentation I can find but I'm none the wiser - nothing so far
stands out as the obvious right way to proceed.
I like to back all of my view-type toolbar items by separate view
controllers. In this design it is the job of these view controllers to
monitor the state of your application that affects their views, and
update the enabled / selected state appropriately. Your views, or view
controllers, can often times use bindings to achieve this with minimal
fuss and overhead. There is no built in support in NSToolbar for
managing view controllers for your view-type toolbar items, so you
would have to manage that part for yourself.
j o a r
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