I have changed the code I added:
CGSize newSize = rotatingView.bounds.size;
newSize.width += (abs(myShadowOffset.width) + spread);
newSize.height += (abs(myShadowOffset.height) + spread);
CGRect newSelf = CGRectMake(self.frame.origin.x, self.frame.origin.y,
newSize.width,
newSize.height);
self.frame = newSelf;
UIGraphicsBeginImageContext(newSize);
however what I am getting now is a larger image, offset in the view and still
cutting off the shadow. So I honestly do not know how I am suppose to draw this
shadow. I would really be grateful for some additional direction.
On Dec 21, 2009, at 7:09 PM, David Duncan wrote:
> On Dec 21, 2009, at 5:29 PM, Development wrote:
>
>> I'll try my question again. Ok, I have a UIImageView. I am trying to draw a
>> shadow under the UIImage it holds. Now if I make the UIImageView's bounds
>> some ungodly size, like the size of the screen it draws shadows perfectly
>> but obviously this is not acceptable. So I don't understand what I am doing
>> wrong. I've tried turning off the clipstobounds but that doesn't help unless
>> the context I am drawing is is clipping in which case I do not know how to
>> turn it off. But at least in the UIImageView it is not clipping.
>
>
> Your drawing to an offscreen context, and in doing so your asking to create a
> context that is a certain size. If you draw outside of that area, then your
> going to lose that drawing, period, because there is no place to put it.
>
> If you want to add a shadow, your going to have to calculate how much extra
> space you need and increase the context you draw by that size. A reasonable
> approximation is the shadow offset plus the shadow spread. Either way, your
> not going to be able to use the image's original size as the final size
> because you are explicitly asking to draw outside of that original image.
> --
> David Duncan
> Apple DTS Animation and Printing
>
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