How to correctly control cursor???
How to correctly control cursor???
- Subject: How to correctly control cursor???
- From: Scott Ribe <email@hidden>
- Date: Sat, 09 Oct 2004 12:38:22 -0600
I'm implementing a custom control, and want it to change the cursor when the
pointer is moved over it. OK, I find that cursor tracking rects don't work
as advertised. So next I try to add tracking rects and just use those. But I
find that when the mouse is moved quickly, the newly-entered area will be
have its mouseEntered method called *before* the just-left area has its
mouseExited method called. This means that simply pushing and popping the
cursor on entry and exit won't work.
I don't see any way to get correct cursor behavior except to manage setting
the cursor within my window controller. I have to keep some state info about
which control is currently entered, so that on mouseEntered I know whether
mouseExited has already been called and can account for the exit if not, and
on mouseExited I know whether the exit was already taken into account by
handling an earlier enter event. Is there a better way?
Is this why in so many Cocoa applications I see the I-beam cursor continue
to be displayed after moving the pointer out of a text control, and often
see the cursor not change from the pointer to the I-beam when moving into a
text control???
--
Scott Ribe
email@hidden
http://www.killerbytes.com/
(303) 665-7007 voice
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