Re: [AD] clipping, sub bitmaps

[Evert Glebbeek <eglebbk@xxxxxxxxxx>]

On 16 Aug 2009, at 21:36 , Peter Wang wrote:
> With sub-bitmaps it would be easy to allow you to change the
> sub-bitmap's offset and size.  On the other hand, if you create a
> sub-sub-bitmap then change the parent bitmap's offset, you might  
> expect
> the sub-sub-bitmap to be shifted as well, and that *would* complicate
> things.  The same argument applies to top-level bitmaps and sub- 
> bitmaps.

Do bitmaps keep a list of their subbitmaps? If they do, that would  
just require calling the translation (a relative one, of course, the  
top level one is absolute) on all sub bitmaps of the parent bitmap.

Evert