Hello,
I am trying to use Core Graphics calls from within a
COCOA application to draw in an NSView.
I have been using the CGPattern calls to create and
draw a pattern in the view following the apple
documentation.
However, when the window in which the view is located
resizes, the pattern moves as if it screen relative,
while all the other CG content drawn on top of the
pattern moves as you would expect - relative to the
window.
This seems very strange, but also occurs in the only
other example of using NSPattern I could find:
http://lists.apple.com/archives/carbon-development/2003/Sep/msg00179.html
My draw method to make the referenced code work is as
follows:
- (void)drawRect:(NSRect)rect {
CGContextRef myContext = [[NSGraphicsContext
currentContext]graphicsPort];
drawPatternInStrokedCircle(myContext, *(CGRect*)
&rect);
}
If you run this (on Tiger 10.4.1 in my case) and
resize the window which contains the view, the stars
move out of sync with the circle.
The documentation seems to make no reference to this
sort of behaviour.
Any light you could shed on this would be most
welcome!
Many Thanks
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