NSOutlineView Changing disclosure Image

Question

I my outline view, i am adding Custom cell, To drawing custom cell, i am referring example code , present in the Cocoa documentation

http://www.martinkahr.com/2007/0

Answer 1

This is what i have tried and working so far,

/* because we are showing our own disclose and expand button */

- (NSRect)frameOfOutlineCellAtRow:(NSInteger)row {

    return NSZeroRect;
}
- (NSRect)frameOfCellAtColumn:(NSInteger)column row:(NSInteger)row {
    NSRect superFrame = [super frameOfCellAtColumn:column row:row];

    if ((column == 0) && ([self isGroupItem:[self itemAtRow:row]])) {
        return NSMakeRect(0, superFrame.origin.y, [self bounds].size.width, superFrame.size.height);
    }
    return superFrame;
}

I have subclassed NSOutlineView class and override these methods,

[self isGroupItem] is to check whether its group or not. but got one problem, now looks like mousehandling i need to do :( , on double clicking group row is not toggling