Re: NSBezierPath
Re: NSBezierPath
- Subject: Re: NSBezierPath
- From: "Louis C. Sacha" <email@hidden>
- Date: Mon, 1 Dec 2003 03:49:26 -0800
Hello...
I would add to the previous comments by James Chen about locking the
focus before drawing, that this depends on how your
drawNeedleForError: method is being called. If you only call this
method from inside GaugeView's drawRect: method, then the focus has
already been taken care of for you automatically. If you are calling
this method from outside the GaugeView's drawRect: method or any
other object is calling this method on your gaugeView instance, then
you definitely need to do as he said and lock/unlock focus properly.
Also, you might want to change the
gaugeRect = [gaugeView frame];
call to
gaugeRect = [gaugeView bounds];
A view's frame represents its position and size in it's superview, a
view's bounds represents the rect used internally for drawing its
content.
Anyway, the following code isn't working (at all). This is
currently just a test method that should simply draw a line from the
bottom left corner to the top right corner. gaugeView is declared
in my .h file and is linked to an NSQuickDrawView in IB. I have
verified that the output of the NSLog is appropriate. Any help
would be appreciated; TIA!
Finally, you might want to verify that you have added your gaugeView
to the NIB file correctly in Interface Builder. I may be
misunderstanding what you are trying to say above, but it doesn't
sound right to me. If your GaugeView class is a subclass of NSView,
then you need to drag an NSView to your window (it looks like a
shaded rectangle, which I believe says "Custom View" on it). Then
either drag the GaugeView.h file onto Interface Builder, or choose
the "Classes" tab in the shelf that displays the objects in the nib
file and then select "Read Files" from the "Classes" menu in the main
menubar and choose your GaugeView.h file. After that, click on the
custom View that you dragged to the window earlier and then choose
the "Custom Class" tab on the Inspector panel. Select GaugeView in
the list of classes displayed. You'll also need to make whatever
connections to the gaugeView from the objects that you need to send
commands from.
Hope that helps,
Louis
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