Re: address@hidden: display problem after renaming open image files]

[Chong Yidong]

Richard Stallman <address@hidden> writes:

>     For all practical purposes, the current behavior is fine.  After all,
>     image-mode (currently) functions as an image viewer, not an image
>     editor.  So if you move the underlying image file, no one will be
>     surprised that you can't view the image anymore!  Plenty of image
>     viewing programs have this behavior (see gqview for example.)
>
> When you visit a file in Emacs, looking at the buffer is not supposed
> to depend on the existence of the file.  The contents of the file are
> supposed to be in the buffer.  (That is what a buffer is for.)
>
> That is why this is so clearly a bug.
>
> If I agree to release without fixing this bug now, will you agree
> in return to fix the problem next month for Emacs 23?

Yes.  The best way to do it is probably to implement the "using an
overlay for the image spec" idea.

As I said, that will require some deep changes in image.c.  It will be
big change, but not conceptually difficult.