Re: [AD] clipping, sub bitmaps

[Peter Wang <novalazy@xxxxxxxxxx>]

On 2009-08-16, Evert Glebbeek <eglebbk@xxxxxxxxxx> wrote:
> 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.

No, they don't.

Peter