Re: Notification for mouse-up on NSStepper
Re: Notification for mouse-up on NSStepper
- Subject: Re: Notification for mouse-up on NSStepper
- From: Alastair Houghton <email@hidden>
- Date: Fri, 7 Dec 2007 15:31:52 +0000
On 7 Dec 2007, at 14:56, glenn andreas wrote:
You can do this:
- (void) mouseDown: (NSEvent *) event
{
[super mouseDown: event];
if ([[NSApp currentEvent] type] == NSLeftMouseUp) {
[self doSomethingAfterTracking];
}
}
- (void) mouseUp: (NSEvent *) event
{
[self doSomethingAfterTracking];
}
So if the super's mouseDown does the tracking loop, the current
event will be the mouse up (that stopped the tracking loop). If it
doesn't, then mouseUp will be called like normal.
Hmmm. I hadn't thought of checking -currentEvent. If we assume that
there are no guarantees from Apple, it's better than doing nothing,
though I think it still isn't completely robust wrt changes in the
superclass.
Kind regards,
Alastair.
--
http://alastairs-place.net
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