Re: [Gimp-developer] Re : Feedback from an ordinary user

["Guillermo Espertino (Gez)" <gespertino gmail com>]

El 25/11/12 10:57, Cristian Secară escribió:
> That I know, but I was referring to Alexia's statement about anything
> except XCF being destructive. That statement was about file format, or
> so I understand.
>
> If I crop something and either save as XCF or export as PNG (or other
> lossless format versus the original), of course the cropping action
> itself is destructive, but the file format makes no difference *in this
> case*. Saving as XCF does not save also the original and an operation
> history, for example, so what is the point in saying that export is
> always destructive ?
>
> Or maybe there is really something I am unaware of ?
>
> Cristi
Oh, I see. You're right, the cropping operation in this case is 
destructive, independent of the output format. A scaling operation, any 
filter to the image would be destructive too, and the XCF won't store 
the original data.
However, as far as I know, this change (save/export) is one of the first 
steps towards non-destructive editing and in the future GIMP will store 
every action performed as a GEGL operation non-destructively.
When that happens the images you open will be actually "imported" in the 
node tree, and from that point every operation won't be destructive, so 
storing the XCF (or whatever format GIMP uses at that point) will be the 
only non-destructive option, while the rest of the formats will be 
destructive.
That's what I understood from Peter Sikking's blogposts and from 
comments in this list and in the IRC channel. Please let me know if this 
isn't correct.
Gez