I want to have a checkbox in a tableview and be able to tab into it
from the column to its left with the TAB key and then set its state
with the keyboard (e.g. the space key, any other would be fine as
well). This is to avoid the need to use the mouse for very efficient
data entry. I did
NSButtonCell *buttonCell = [[NSButtonCell alloc]
initTextCell:@""];
[buttonCell setButtonType:NSSwitchButton];
[buttonCell setImagePosition:NSImageOnly];
[buttonCell setSelectable:YES];
[buttonCell setEditable:YES];
[tableColumn setDataCell:buttonCell];
[_displayObjects addObject:buttonCell];
[buttonCell release];
This allows me to tab into and over the checkbox column on the Mac.
This does not work under GNUstep! Why? I subclasses NSButtonCell
@implementation GSButtonCell
- (BOOL)acceptsFirstResponder
{
BOOL result = [super acceptsFirstResponder];
NSLog(@"%@ acceptsFirstResponder %d", self, result);
return result;
}
@end
and expected acceptsFirstResponder to be called when I try to tab into
the column. However, this does not happen under GNUstep!?
When tabbing into the checkbox column on MacOSX the following method
is called with an NSCBBoolean as anObject. However, the state of he
boolean is always false whether the checkbox was set with the mouse
before or not!?
- (void)tableView:(NSTableView *)aTableView setObjectValue:anObject
forTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex
{
}
Any idea what I am missing?