Layer opacity shortcut

[Kevin]

Have a look at this:

Code:

#!/usr/bin/env python
# Author: Me
# Copyright 2018
# License: GPL v3
# GIMP plugin to do stuf for DaveMac
# For DaveMac:- https://www.gimp-forum.net/Thread-Layer-opacity-shortcut

import sys
sys.stderr = open("C:/tmp/gimp_python_errs.txt",'a')
sys.stdout=sys.stderr

from gimpfu import *
pdb = gimp.pdb

# this is the bit that does all the work
def dave_mac(image,drawable):
    if (drawable.opacity == 100):
      drawable.opacity = 60.0
    else:
      drawable.opacity = 100.0
    
    # The End of the main routine

# menu registration
register(
    "python-fu-dave_mac",
    "DaveMac",
    "Change Layer Opacity",
    "DaveMac",
    "gimp-forum.net",
    "16.03.2018",
    "Change Layer Opacity",
    "*",
    [
      (PF_IMAGE, "image",       "Input image", None),
      (PF_DRAWABLE, "drawable", "Input drawable", None),
    ],
    [],
    dave_mac,
    menu="<Image>/Layer/"
    )

main()

Most of it is just menu registration and comments.

I expanded on the specification and made it look up the current opacity. If it's currently 100, it sets it to 60, otherwise it sets it to 100.