gistfile1.m

NSPopUpButton *popup = NSToolbarSizeModeSmall == [toolbar sizeMode]
? [[[NSPopUpButton alloc] initWithFrame:NSMakeRect(0.0, 0.0, 40.0, 24.0)] autorelease]
: [[[NSPopUpButton alloc] initWithFrame:NSMakeRect(0.0, 0.0, 48.0, 32.0)] autorelease];

[[popup cell] setControlSize:NSSmallControlSize];
[popup setFont:[NSFont systemFontOfSize:[NSFont smallSystemFontSize]]];
destinationPopup = [popup retain];

[result setView:popup]; [popup release];

// Eww, hard-coded size futzing:
NSSize size = [popup bounds].size;
size.width *= 3;
[result setMinSize:size];