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Transition to Gimp 3
#1
Hi,

I've been using Gimp since 1996 for various purposes, but in recent years it's mostly for processing screenshots - capturing, combining, drawing arrows or text on them. In 2000 I bought Grokking the Gimp, and a lot of what was there still applies to the latest Gimp 2.

All was generally fine until a year ago, when I could no longer take screenshots because my Linux distribution moved to Wayland. I had the workaround of using a different tool and copying the result to Gimp.

With the move to Gimp 3, things got significantly worse. For one thing, now I also cannot scan images, because the xsane driver that worked with Gimp 2 is 8 years old and nobody maintains it (though there seem to be some workaround, but I didn't really need it, so I didn't check).

But the reason I'm writing this is that I cannot figure how to use the rectangular selection effectively. In the good old days, you could select a rectangle and copy it, and when you pasted it, you'd have a rectangle with whatever you copied on a temporary layer and that was that. Then you could move this temporary layer and change its opacity (which helped me align images) and then you'd choose to either transform the temporary layer into a new, real layer or "anchor" it to the leer below. Now when I paste it's not just my selection (because it's surrounded by transparency so the new layer is the exact size of the layer I copied from) and I need to keep switching between the Select and Move tools, because there is no longer a temporary layer. It also makes Fit Canvas to layers pretty pointless to me, as my layers are way too big (unless I use the crop tool, which I didn't need until now).

I couldn't find anything relevant in the manual or using the search engines and when I ask the AIs they either tell me that nothing changed regarding selection in Gimp 3, or that I must use the crop tool or other things that take more time than the equivalent Gimp 2 ways. Still, I can't imagine being the only one facing these issues, so I wonder if there is some guide describing the Gimp 3 equivalents of the basic Gimp 2 features.

Thank you!
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#2
The old behavior still exists as Edit > Paste as > Floating data. The new behavior is equivalent to the old Edit > Paste plus Layer > To new layer(*)  and as far as I can tell what is copied is as before: the smallest rectangle that holds the selection.

   

I have been using 2.4, 2.6, 2.8 and 2.10 and the only benefit I ever saw with the floating selection is:

  1. You can paste on things that aren't layers (masks and channels)
  2. It may save some RAM
But for #2 in modern PCs, RAM is hardly an issue, and the benefit of having a plain layer on which you can perform any operation (including painting) has always outweighed the RAM usage.

(*) if there are no "unmerged" filters, because here the real problem with V3 is the non-destructive editing, that sort of works but introduces a lot of kinks in the UI.
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#3
I use Gnome Screenshot on Debian systems. I thought it could work on any Linux desktop. I do a lot of what you do and have not switched to Gimp3 yet. It's still on release candidates and I miss the python2 scripts that can do almost anything.

I found Gimp 3 fixed animation playback which was always buggy on levels of alpha. I use Gimp 2.10.38 for normal tasks.
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#4
(03-01-2025, 08:28 PM)Ofnuts Wrote: The old behavior still exists as Edit > Paste as > Floating data. The new behavior is equivalent to the old Edit > Paste plus Layer > To new layer(*)  and as far as I can tell what is copied is as before: the smallest rectangle that holds the selection.



I have been using 2.4, 2.6, 2.8 and 2.10 and the only benefit I ever saw with the floating selection is:

  1. You can paste on things that aren't layers (masks and channels)
  2. It may save some RAM
But for #2 in modern PCs, RAM is hardly an issue, and the benefit of having a plain layer on which you can perform any operation (including painting) has always outweighed the RAM usage.

(*) if there are no "unmerged" filters, because here the real problem with V3 is the non-destructive editing, that sort of works but introduces a lot of kinks in the UI.

Thanks, to me the floating selection saves clicks and time, but, yes Paste as Floating data seems to do what plain Paste did in version 2, and more digging reveals that the old copy is still there, as Copy Visible. So I guess I'm OK, and I just need to redefine the keyboard shortcuts to do what I'm used to.

I guess I should have tried a little more before posting, but I was already frustrated that I can no longer use my scanner or take screenshots.

(03-01-2025, 09:58 PM)Tas_mania Wrote: I use Gnome Screenshot on Debian systems. I thought it could work on any Linux desktop. I do a lot of what you do and have not switched to Gimp3 yet. It's still on release candidates and I miss the python2 scripts that can do almost anything.

I found Gimp 3 fixed animation playback which was always buggy on levels of alpha. I use Gimp 2.10.38 for normal tasks.

Thanks, it seems likely that Gnome Screenshot would work for me too, but it looks quite similar to what I use in my KDE system (Spectacle). 

It works, but why doesn't Gimp work? Wouldn't it be better to hide / disable the menu under Wayland?
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