nsoutlineview

I have an outline view where I don't want to indent the top couple levels (they have a distinctive appearance anyway), but I do want to indent subsequent levels. How can I do this? I've tried overriding -levelForRow: and -levelForItem: to subtract 2 from the return values, but this didn't help. I also tried overriding -frameOfOutlineCellAtRow: to subtract 2 * indentationPerLevel from the frame's width, but that didn't help either, possibly because I'm not showing disclosure triangles. Any thoughts about how I can fix this issue? The outline view is bound to an NSTreeController , which makes it

I cant seem to figure out how to create a simple NSOutlineView with 2 columns, and a datastructure that is more than 1 level deep (a hierachy). I've been researching this for days, and all I can find is Objective C examples, which I really can't use for anything. I understand there are different patterns for doing this, one being the DataSource pattern. I tried creating a class that inherited from NSOutlineViewDataSource, however thats all I got, I have no clue on what I should do next! Lets say I would like to display the following class in my NSOutlineView: public class Person { public

I'm trying to figure out how to implement drag and drop from within a NSOutlineView to itself. For example, I want the user to be able to reorder and nest and re-nest the items in the NSOutlineView, but I don't need to be able to drag items from any other source (like files or from another view). All the examples I can find deal with dragging item into the NSOutlineView, not just within itself and seem overly complex. I assume this is possible. Can someone point be to some docs that deal with just this case? Maybe I'm just missing the obvious. I have found the documentation of this to be

I have a flawless functioning view-based NSOutlineView with a proper set-up datasource in my project. Now I want to allow the user to change certain entries. So I made the NSTextField in the IB editable. For a cell-based NSOutlineView you can use the delegate method outlineView:setObjectValue:forTableColumn:byItem: however it's not available for a view-based NSOutlineView as stated in the header file for the NSOutlineViewData protocol: /* View Based OutlineView: This method is not applicable. */ (void)outlineView:(NSOutlineView *)outlineView setObjectValue:(id)object forTableColumn:

I need to show an NSTextFieldCell with multiple lines with different format on each line. Something like this: Line 1: Title Line 2: Description I subclassed NSTextFieldCell but I don't know how to go on with it. Any ideas? NSGod First off, you don't have to subclass NSTextFieldCell to achieve this, since, as a subclass of NSCell , NSTextFieldCell inherits -setAttributedStringValue: . The string you provided can be represented as a NSAttributedString . The following code illustrates how you could achieve the desired text with an ordinary NSTextField . MDAppController.h: @interface

I'm struggling with this Swift code already for some time and do not find the problem. The code below should provide the File Directory as DataSource for a NSOutlineView. The GUI is quite simple just a window with a NSOutlineView and a Object for the OutlineViewController instance. When I start the application it shows the root entry, when I expand the root entry it shows for a short period the sub items. Then the application crashes with an Error in file "main.swift" at line "NSApplicationMain(C_ARGC, C_ARGV) --> "EXC_BAD_ACCESS(code=EXC_I386_GPFLT)" ? If added some println() to proof the