On Jul 28, 2008, at 2:42 AM, Ken Ferry wrote:
Graham's suggestion is also better because -[NSGraphicsContext
setCurrentContext:] just releases the context that was previously
current, as opposed to autoreleasing it.
So this has a bug:
NSGraphicsContext *originalContext = [NSGraphicsContext
currentContext];
[NSGraphicsContext setCurrentContext:newContext]; // bad!
originalContext may get deallocated here
// do stuff
[NSGraphicsContext setCurrentContext:originalContext];
Maybe I'm just misunderstanding what saveGraphicsState does, behind
the scenes, but I actually need to draw into the passed in
CGPDFContext, not any sort of view/image/winbow context. Best I can
figure, this requires a forced context switch, not just saving and
restoring the graphics state of whatever context happens to be current.
I couldn't find any way to draw into a CGGraphicsContext with NSxxx
drawing commands without first creating a new context from the
CGContext and second manually setting this context to be the current
one. Is there a better/cleaner way?
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