some help with NSBrowser needed

[Sebastian Reitenbach]

Hi,

for MPDCon, i want to have a filesystem like browser to browse through the music
directories. The Interface is created in Gorm, and in my class, I implemented 
the 
"passive" NSBrowser delegate methods:

- (NSInteger)browser:(NSBrowser *)sender numberOfRowsInColumn:(NSInteger)column;
- (void)browser:(NSBrowser *)sender willDisplayCell:(id)cell 
atRow:(NSInteger)row column:(NSInteger)column;

My class is a subclass of NSWindowController, and is just a NSWindow, with 
a NSBrowser in it, and one IBOutlet NSBrowser *browser.

I can see that both delegate methods get called from within awakeFromNib. There 
at the end I have:

  browser = [[NSBrowser alloc] init];
  [browser setDelegate:self];
  [browser setPath:@"/"];
}

the setPath: actually triggers calling the delegate methods. I have some NSLogs 
in them, to see if 
they get called:

2013-01-01 17:56:10.400 MPDCon[2484] here in numberOfRowsInColumn 0
2013-01-01 17:56:10.400 MPDCon[2484] returning count: 5
2013-01-01 17:56:10.760 MPDCon[2484] here in willDisplayCell <NSBrowserCell: 
0x80c95704> 0 0, adding: /reggae
2013-01-01 17:56:11.031 MPDCon[2484] here in willDisplayCell <NSBrowserCell: 
0x80c95584> 1 0, adding: /techno
2013-01-01 17:56:11.287 MPDCon[2484] here in willDisplayCell <NSBrowserCell: 
0x80c95044> 2 0, adding: /ska
2013-01-01 17:56:11.539 MPDCon[2484] here in willDisplayCell <NSBrowserCell: 
0x80c955c4> 3 0, adding: /folk
2013-01-01 17:56:11.786 MPDCon[2484] here in willDisplayCell <NSBrowserCell: 
0x80c95144> 4 0, adding: /other
2013-01-01 17:56:11.787 MPDCon[2484] File NSView.m: 1182. In -[NSView 
setFrame:] given negative width

The delegate methods, as I have them for now, can be seen below.
It's my first time dealing with NSBrowser, so I hope its just something easy 
that I have overlooked while
trying to figure out what's (not) going on.
I also wonder about the last line of the output from NSView, what this could be 
about?
I'm on OpenBSD i386.

cheers,
Sebastian


- (NSInteger)browser:(NSBrowser *)sender numberOfRowsInColumn:(NSInteger)column
{
NSLog(@"here in numberOfRowsInColumn %d", column);
  NSInteger count, blubb=0;
  NSEnumerator *dirEnum;
  NSString *dir;
  NSMutableArray *tmpArray = [NSMutableArray array];

  dirEnum = [directories objectEnumerator];

  while ((dir = [dirEnum nextObject]) != nil && blubb < 5)
    {
      if ([[dir pathComponents] count] >= column)
        {
          dir = [[dir pathComponents] objectAtIndex:column];
          if (![tmpArray containsObject:dir])
            {
              [tmpArray addObject:dir];
              blubb++;
            }
        }
    }
  count = [tmpArray count];
  [tmpArray release];
NSLog(@"returning count: %d", count);
  return count;
}

- (void)browser:(NSBrowser *)sender willDisplayCell:(id)cell 
atRow:(NSInteger)row column:(NSInteger)column
{
  NSEnumerator *dirEnum;
  NSString *dir;
  NSMutableArray *tmpArray = [NSMutableArray array];

  dirEnum = [directories objectEnumerator];

  while ((dir = [dirEnum nextObject]) != nil)
    {
      if ([[dir pathComponents] count] >= column)
        {
          dir = [[dir pathComponents] objectAtIndex:column];
          if (![tmpArray containsObject:dir])
            {
              //[tmpArray addObject:dir];
              [tmpArray addObject:[NSString stringWithFormat:@"/%@", dir]];
            }
        }
    }
NSLog(@"here in willDisplayCell %@ %d %d, adding: %@", cell, row, column, 
[tmpArray objectAtIndex:row]);
  [cell setStringValue:[tmpArray objectAtIndex:row]];
  [cell setTitle:[tmpArray objectAtIndex:row]];
  [cell setLoaded: YES];
}