Scroll the the bottom if you are at the bottom

gistfile1.txt

- (void) scrollToVisible:(id)unused
{
	// Only show bottom if we are already scrolled down at/near the bottom.
	NSScrollView *scrollView = [oLog enclosingScrollView];
	NSPoint currentScrollPosition=[[scrollView contentView] bounds].origin;
	float diff = oLog.frame.size.height - (scrollView.contentSize.height + currentScrollPosition.y);
	
	if (diff < 50)	// Seems like it's often 39 when we're at the bottom, so give some slack.
	{
		// [oLog scrollRangeToVisible:NSMakeRange([[oLog textStorage] length], 0)];
		// Below might be better:
		[scrollView.contentView scrollToPoint:NSMakePoint(0, oLog.frame.size.height - scrollView.contentSize.height)];
	}
}