Re: Need help with setNeedsDisplay - Another Update
Re: Need help with setNeedsDisplay - Another Update
- Subject: Re: Need help with setNeedsDisplay - Another Update
- From: Yevgeniy Goldberg <email@hidden>
- Date: Sat, 10 Mar 2007 14:17:16 -0600
I could try to set up a sample app.
In short, my app has 3 parts: a model class based on CoreData, a
controller class that retrieves the data from the model and a view
class that has this custom view.
The user changes some data by clicking NSStepper. Each click triggers
an "update" function in controller that updates the model's data and
suppose to update a simple graph in the view to reflect the changes.
Everything else seem to work except for the custom view update.
On Mar 10, 2007, at 2:09 PM, Mike Abdullah wrote:
Perhaps a simple test application would help us solve the problem?
If not, other things to check are that you haven't set up anything
weird in the run loop have you? And likewise, -setNeedsDisplay:
isn't being called as part of a lengthy loop which locks up the
main thread?
Mike.
On 10 Mar 2007, at 19:32, Yevgeniy Goldberg wrote:
I'm using self within my custom view code and I have not
overwritten setNeedsDisplay.
I do not have any variables called self.
On Mar 10, 2007, at 1:31 PM, Buddy Kurz wrote:
[self setNeedsDisplay:YES] is being called by a method in your
custom view?
and you haven't created your own instance variable called self?
or overridden setNeedsDisplay:?
On Mar 10, 2007, at 11:21 AM, Yevgeniy Goldberg wrote:
I was just reading numerous posts regarding this issue.
Some of them mention that upon window resize the drawRect is
actually being triggered.
I've just tried that and it is true.
The problem is the same though - I have no need to resize the
main window, so the need to have drawRect triggered as it should
is still there.
On Mar 10, 2007, at 1:12 PM, Yevgeniy Goldberg wrote:
Yes, It was just a typo.
I'm using the standard drawRect for all the drawing, but when I
call [self setNeedsDisplay:YES] it does not have any visible
affect.
On Mar 10, 2007, at 1:10 PM, Andy Lee wrote:
On Mar 10, 2007, at 1:52 PM, Yevgeniy Goldberg wrote:
I've just realized that drawRec is not even being called
after I change the variables and call
[self setNeedsDisplay:YES]
Any ideas as to why the drawRec is not being called?
Is that a typo, or is your method really called drawRec? It
should be drawRect:, with a "t" and a colon, and should take
an NSRect argument. See the documentation for the method.
--Andy
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