Re: Where do these come from...
Re: Where do these come from...
- Subject: Re: Where do these come from...
- From: Quincey Morris <email@hidden>
- Date: Wed, 15 Aug 2012 23:10:56 -0700
On Aug 15, 2012, at 20:39 , Charlie Dickman <email@hidden> wrote:
> I DO NOT call drawRect directly. I DO call [self setNeedsDisplay: YES] to keep things going. All drawing is done from inside drawRect which has been invoked through the use of [self setNeedsDisplay: YES],
That's good. Next step is to eliminate your voodoo code:
> while (![self lockFocusIfCanDraw]) RELQ(.1);
> …
> [self unlockFocus];
> [[self window] flushWindow];
and look for the actual problem ("the images never show"). You shouldn't assume that the problem is with the 2 image 'drawInRect:…' messages. It could well be that the earlier code in 'drawRect:' has done something wrong.
My guess is that an earlier part of 'drawRect:' failed to save/restore the graphics context around some drawing that changed then invalidated the current context.
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