Add script to make wallpaper from image

create_wallpaper.py

@@ -0,0 +1,94 @@
+#!/usr/bin/env python
+
+# make_wallpaper.py
+# Scales picture to fit wallpaper and adds matching background
+#
+# License: GPLv3
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY# without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# To view a copy of the GNU General Public License
+# visit: http://www.gnu.org/licenses/gpl.html
+#
+# ------------
+#| Change Log |
+# ------------
+# Rel 1: Initial release.
+
+from gimpfu import *
+
+def python_fu_make_wallpaper(resX, resY, sourceFile, targetFile) :
+    # create new image in resolution size
+    img = gimp.Image(resX, resY)
+
+    bg = img.new_layer("bg", resX, resY)
+    pic = pdb.gimp_file_load_layer(img, sourceFile)
+    img.add_layer(pic, 0)
+    
+    # scale picture down if it's too big for resolution
+    if pic.width > resX or pic.height > resY:
+        scaleX = (resX - 50.0) / pic.width
+        scaleY = (resY - 50.0) / pic.height
+        scale = min(scaleX, scaleY)
+        x0 = int((resX - picX * scale) // 2)
+        y0 = int((resY - picY * scale) // 2)
+        x1 = resX - x0
+        y1 = resY - y0
+        pic.scale(x0, y0, x1, y1)
+    
+    pic.set_offsets((resX-pic.width)/2,(resY-pic.height)/2)
+
+    # get border average of image for 20px, 4 colors
+    if not(pic.width == resX and pic.height == resY):
+        color, _ = pdb.plug_in_borderaverage(img, pic, 20, 4)
+        pdb.gimp_palette_set_foreground(color)
+
+        # fill bg layer with calculated average
+        bg.fill(FOREGROUND_FILL)
+
+        # desature for certain bgcolors
+        colorHSV = color.to_hsv()
+        if colorHSV[1] > 50 and colorHSV[2] > 50:
+            img.merge_visible_layers(FALSE)
+
+            img.add_layer(pdb.gimp_layer_copy(merged, FALSE))
+            multi = img.layers[0]
+            multi.name = "multi"
+            pdb.gimp_desaturate(multi)
+            multi.opacity = 15.0
+            multi.mode = MULTIPLY_MODE
+
+            img.add_layer(pdb.gimp_layer_copy(multi, FALSE))
+            sat = img.layers[0]
+            sat.name = "sat"
+            sat.mode = SATURATION_MODE
+
+    # save
+    pdb.gimp_file_save(GIMP_RUN_NONINTERACTIVE, img, img, targetFile, targetFile)
+
+register(
+	"python_fu_make_wallpaper",                           
+	"Scale picture and add background for wallpaper",
+	"Scales picture to fit wallpaper and adds matching background",
+	"Sarah Ziesel",
+	"Sarah Ziesel",
+	"April 2020",
+	"<Toolbox>/File/Create/Wallpaper"
+	"RGB*",
+	[
+    (PF_SPINNER, "resX", _("Screen width"), 2560),
+    (PF_SPINNER, "resY", _("Screen height"), 1440),
+    (PF_FILE, "sourceFile", _("Source file"), None),
+    (PF_STRING,  "targetFile", _("Desired target path"), "/home/sarah/sync/private/pictures_converted/bandori_0001.jpg")
+    ],
+    [],
+	python_fu_make_wallpaper)
+
+main()