Greetings,
I have a custom NSView, which draws a pie chart. I want to implement
a tooltip for each slice of the pie to indicate information about that
slice for the user. The slices are not rectangular, they are
triangular. Thus, I can't just use addToolTipRect:owner:userData.
So I had this clever idea that I would track mouseMoved events in the
custom view, and, when the mouse point is within one of the slices, I
would set the tooltip for the entire view to the string for that
slice. I figure it'll get reset when it moves to another slice
anyway, so it's all good.
The only problem is, my tooltip refuses to show up.
I'm calling [NSView setToolTip:] and I also have a tracking rect, and
I am receiving the mouseMoved events just fine. Is there some kind of
known reason my tooltips won't show up in this scenario? I've set
tooltips on custom views before without the mouse tracking and not had
much trouble. Alternatively, can someone recommend a smarter way to
do this?
Thanks.
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