Re: NSOutlineView not always showing "expand triangle"
Re: NSOutlineView not always showing "expand triangle"
- Subject: Re: NSOutlineView not always showing "expand triangle"
- From: Luc Vandal <email@hidden>
- Date: Tue, 5 Jul 2005 12:01:26 -0400
Hi Corbin,
I'm not subclassing NSTableView. Here's my code:
//
// numberOfChildrenOfItem
//
//
/////////////////////////////////////////////////////////
- (int)outlineView:(NSOutlineView *)outlineView
numberOfChildrenOfItem:(id)item
{
if( item == nil )
{
return m_nVolumes;
}
else
{
return [self GetNumberOfChildrenOfItem:item];
}
return 0;
}
//
// isItemExpandable
//
//
/////////////////////////////////////////////////////////
- (BOOL)outlineView:(NSOutlineView *)outlineView
isItemExpandable:(id)item
{
if( [self GetNumberOfChildrenOfItem:item] > 0 )
{
return YES;
}
return NO;
}
//
// GetNumberOfChildrenOfItem
//
//
/////////////////////////////////////////////////////////
- (int)GetNumberOfChildrenOfItem:(id)item
{
int nItems = 0;
NSNumber* nID = [item objectForKey:@"ID"];
NSNumber* nPID = [item objectForKey:@"parentID"];
NSString* strPath = [item objectForKey:@"path"];
NSString* str = [item objectForKey:@"volume"];
[self EnumerateVolumes:strPath ForFolderID:[nID intValue]];
int nCount = [aVolumes count];
for(int i=0;i<nCount;i++)
{
NSDictionary* dict = [aVolumes objectAtIndex:i];
NSNumber* nParentID = [dict objectForKey:@"parentID"];
if( [nParentID intValue] == [nID intValue] )
{
nItems++;
}
}
return nItems;
}
//
// child ofItem
//
//
/////////////////////////////////////////////////////////
- (id)outlineView:(NSOutlineView *)outlineView child:(int)index
ofItem:(id)item
{
if( item == nil )
{
return [aVolumes objectAtIndex:index];
}
else
{
int nCount = [aVolumes count];
NSNumber* nID = [item objectForKey:@"ID"];
int j = 0;
for(int i=0;i<nCount;i++)
{
NSDictionary* dict = [aVolumes objectAtIndex:i];
NSNumber* nParentID = [dict objectForKey:@"parentID"];
NSString* str = [dict objectForKey:@"volume"];
if( [nParentID intValue] == [nID intValue] )
{
if( j == index )
{
return [aVolumes objectAtIndex:i];
}
j++;
}
}
}
return nil;
}
//
// objectValueForTableColumn
//
//
/////////////////////////////////////////////////////////
- (id)outlineView:(NSOutlineView *)outlineView
objectValueForTableColumn:(NSTableColumn *)tableColumn byItem:(id)item
{
if( !item )
return NULL;
NSString* strPath = [item objectForKey:@"path"];
if ([[tableColumn identifier] isEqual:@"ICN"])
{
return [[NSWorkspace sharedWorkspace] iconForFile:strPath];
}
return [item objectForKey:@"volume"];
}
Thanks!
Luc
On 5-Jul-05, at 11:39 AM, Corbin Dunn wrote:
Luc,
Do you have a source code test case that demonstrates the problem?
And/or a code snippet that you can post here for your datasource
methods? are you subclassing the NSTableView in any way?
--corbin
On Jul 4, 2005, at 11:37 AM, Luc Vandal wrote:
Yes they are! I just don't know if this is a bug or if I'm doing
something wrong!!! The outline view seems to recognize that some
items have children but it won't display the collapse/expand icon and
will display the children right under the parent at the same level
instead of 1 level lower...
Luc
____________________________________________________
Luc Vandal
Développeur de logiciel / Software Developer Victor Reader Team
HumanWare
841 Jean-Paul-Vincent, Longueuil QC, Canada J4G 1R3
Tél : / Tel +1 450 463-1717
Fax / Téléc : +1 450 463-0120
http://www.humanware.com
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