NSOutlineView - How to hide disclosure triangle for root nodes ?
NSOutlineView - How to hide disclosure triangle for root nodes ?
- Subject: NSOutlineView - How to hide disclosure triangle for root nodes ?
- From: Mario Kušnjer <email@hidden>
- Date: Wed, 25 Nov 2009 14:49:37 +0100
Hello to all on the list.
I have a little question so if anyone could help me.
I'm have an outline view that has one (for now) object in root array
that acts as a root from which all other objects derives.
\/ Root Array
|----------------\/ Root object
|----------------- Child 1
|----------------- Child 2
|--------------- \/ Child 3
|----------- Child 3.1
|----------- Child 3.2
|----------------- Child 4
My question is:
How to hide the disclosure triangle in front of the Root object and
remove indentation for it, and just that object (and later if there is
more Root objects for them too) ?
\/ Root Array
|---------------- Root object
|----------------- Child 1
|----------------- Child 2
|--------------- \/ Child 3
|----------- Child 3.1
|----------- Child 3.2
|----------------- Child 4
I would like it too look like source list in Apple's Mail application
- where it says - MAILBOXES.
I found the delegate method which is used for drawing outlineCell
- (void)outlineView:(NSOutlineView *)outlineView
willDisplayOutlineCell:(id)cell forTableColumn:
(NSTableColumn*)tableColumn item:(id)item
but that method does not get called if Root object is empty.
There is a method that is also used for drawing outlineCell
- (NSRect)frameOfOutlineCellAtRow:(NSInteger)row
but it is not a delegate method which means that I should subclass
NSOutlineView to implement that behavior.
I'm trying to make it work with the delegate method (that would be my
preferred way) but I can't make it work.
Any suggestions what to do ? And how ?
There is a zip archive of my project at http://www.box.net/crowebster-public
so anyone interested can download it to review my work.
P.S. additional question:
If there is number of object that are identical (just added to the
array but not yet modified), when one item is selected and removeItem
method is called upon it,
all identical objects are removed instead just selected object.
How to avoid that behavior (the simplest possible way) ?
Notice: All objects are instances of NSMutableDictionary.
That problem is also in the same project.
Any suggestions are appreciated.
Thanks in advance. Bye.
Mario Kušnjer
email@hidden
+385957051982
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