Re: NSCell's mouse tracking method never called
Re: NSCell's mouse tracking method never called
- Subject: Re: NSCell's mouse tracking method never called
- From: Graham Cox <email@hidden>
- Date: Thu, 10 Dec 2009 15:59:40 +1100
On 10/12/2009, at 3:50 PM, Martin Cote wrote:
> I'm trying to track the mouse in my custom NSCell subclass, which is
> used to display the content of a NSTableView. For that matter, I
> override the following method:
>
> - (BOOL)trackMouse:(NSEvent *)theEvent inRect:(NSRect)cellFrame
> ofView:(NSView *)controlView untilMouseUp:(BOOL)flag;
>
> The problem is that this method is never called for some reason that eludes me.
>
> Here's more details about the application:
> - I use tracking rects (using NSView's
> addTrackingRect:owner:userData:assumeInside: method). I'm not using
> NSTrackingArea because I want this thing to work on pre-Leopard
> machines.
> - The mouseEntered:/mouseExited: methods are called properly for the
> tracking rects.
> - My NSCell's are copied for tracking (inspired by the PhotoSearch
> sample project). In fact, the whole application resemble the
> PhotoSearch project, the main difference being that I use tracking
> rects instead of tracking areas.
>
> I'm really perplexed by this. Any insight would be useful.
Not really enough to go on. Just this morning I was debugging some custom cell code that lives inside a NSOutlineView and this method was indeed called as expected.
Are you expecting this method to be invoked by your tracking handler? Normally it's called by a mouseDown in the table.
You need to show some code.
--Graham
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