Is there something that would clear a selection on all layers. If not maybe this could be added.

See clear-layers here : https://sourceforge.net/projects/gimp-t ... s/scripts/

This said there is a limit to this kind of script... either you can only have function without parameters, or you end up redoing parameter entry dialogs for every tool you use. Or you have some clever code that can read the PDB, discovers the parameters and generates a dialog on the fly...

Thanks for putting this together, Graechan. It's a good starting template.

I'd like to see the following added.
Horizontal & Vertical Flip
Semi-Flatten
Rotate 90 Clockwise & Counter Clockwise
Layer to Image size

I'd also like to see "Colorize all layer", with an option to colorize only visible layers.

Back when I wrote my Combine BG script, I remember working on a similar concept. I started with the idea that the paste buffer could be used to hold the layer that was to be combined and so the command would be either "Paste" or "Paste Behind" to Overlay or Combine with each of the targeted layers.

This did not work out very well because the paste buffer gets centered relative to the target layer when pasting, resulting in the pasted image "moving" around unless all of the layers were the same size and in the same location. I then added a way to resize all of the layers to the image size but this only offered a partial solution -- the pasted image no longer moved around but unless the paste buffer contained an image-sized graphic, the position would still be centered in the image. Basically the paste buffer approach was a dead end.

Nonetheless, at the time I had written this, my script expanded to support several different operations on multiple layers, not just pasting and resizing. However, I did this in a way that fits my own quirky thought processes to which many might object. Mainly, I did not want to have special options that could be accomplished by just running the script additional times. For example, hiding a set of layers would entail showing the layers and then toggling their visibility; or rotating layers counter-clockwise could be accomplished by rotating clockwise and then pressing CTRL-f twice. I think this approach might still has merit, especially if you start getting into dozens of operations.

Here are the options I'd provided:


For whatever it's worth, here is the link to the script I wrote (it did not, of course, support layer groups). I also recall making a later version that copied the active layer's blend mode or opacity to the target layers, but I can't locate the code for that.

PS: Not to be a grammar nazi, but your first option should be titled "Layers to Affect", not "Layers to Effect".

I agree with Tux this makes for a great template to add actions or processes to layers. Colorize would be a real great option to add perhaps as it was added to Blue Ice but on linked, un-linked, visible, and non visible layers/selections.
Selection to all other linked, non-linked, visible, non-visible layers would be great also.

Great script Graechan and thank you.

I don't see the added actions & I downloaded the update.

So to run the script on any layers they would have to be un-grouped and then re-grouped perhaps?

Awesome.

Try to replace the statement you proposed, that is:
(if (= (gimp-item-is-group layerId) FALSE) (gimp-invert layerId))

with this one:
(if (= (car (gimp-item-is-group layerId)) FALSE) (gimp-invert layerId))