Re: Source list using bindings?
Re: Source list using bindings?
- Subject: Re: Source list using bindings?
- From: Jonathan Dann <email@hidden>
- Date: Wed, 26 Mar 2008 19:59:12 +0000
On 26 Mar 2008, at 00:45, Hamish Allan wrote:
Hi Jon,
On Tue, Mar 25, 2008 at 9:49 PM, Jonathan Dann <email@hidden>
wrote:
As of 10.5 it's the Apple-sanctioned way to go! I've used it for
ages
now, no problems at all. The tree node is a proxy for whatever
'real'
item you add to the tree.
I just wondered why it was NSTreeControllerTreeNode rather than
NSTreeNode. I'm just naturally wary of solutions beginning "class-dump
shows..."!
You do get a lot of that, it's maybe a contrived example, but many of
your classes will get replaced at runtime by isa-swizzling to make
them something like KVONotifyingMyAwesomeClass (I forget the prefix
Apple adds, just have a look in the debugger). It'll just be some odd
implementation detail that will be beyond me! The 10.5 docs for
NSTreeController all refer to NSTreeNode.
You can also get the selectedNodes, which returns treeNode objects,
or
the selectedObjects, which returns the 'real' obejcts that you've
created.
Splendid!
My isGroupItem just compares an NSString *nodeName of the represented
object to a list of strings I want to have as groups, i.e @"SOURCES",
@"PLAYLISTS", etc.
I just treat everything at the top level as a group item:
- (BOOL)outlineView:(NSOutlineView *)outlineView isGroupItem:(id)item
{
return ([outlineView parentForItem:item] == nil);
}
Thank you for your autosaving advice; I did see your code for that on
the list recently, and it will doubtless be very useful.
You're welcome.
Jon
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