Re: [Gimp-developer] Save/export, option to go back to old behaviour

[Alexandre Prokoudine <alexandre prokoudine gmail com>]

On Mon, Nov 19, 2012 at 8:41 AM, Graeme Gill wrote:
> Alexandre Prokoudine wrote:
>> It must be wonderful to live in a world where people work only on
>> images they created themselves :)
>
> Relevance ? (I can't see any).

You can't? Do I really have to go back and point my finger at your
earlier statements?

"A file that
holds the image data in a lossily compressed format positively
indicates that this is what the user intends. They have chosen
a certain image quality vs. file size tradeoff, and not maintaining
this choice is discarding the users preferences."

So what you are saying is that, correct me if I'm wrong, people never
edit other people's pictures? Amazing. Talk about real life.

You see, where I work we produce an industry magazine and use Creative
Commons licensed content from Flickr (properly attributed) which we
clearly didn't produce and upload ourselves.

Editing other people's content is, frankly, quite a common activity.
It's astounding that you dismiss it so easily.

>> Um. Are you suggesting that GIMP should somehow begin to view files
>> differently as soon as some unsupported (re original file) feature
>> gets added? Like "Uh, oh, you added a layer, and PNG doesn't support
>> layers, so let's treat this as XCF after all"? :)
>
> Such a thing comes without any further effort. The current state of
> the image either contains layers or it doesn't. It's simple for
> the PNG image code to check if there are layers, and return
> a status "can't save all of the current image info."
>
> There are a variety of UI ways of handling this, from
> not offering any formats that will loose information to
> save to, to the simple "do you want to collapse into PNG format" etc.
>
> But all this is very elementary. I don't understand why
> you raise it as being any sort sort of problem.

It was explained many times why we did it.

Alexandre Prokoudine
http://libregraphicsworld.org