documentation/scripts/batch-drop-shadow.scm

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; Based on script by Michiel Roos, found on:
; http://www.typofree.org/article/archive/2009/january/title/create-a-drop-shadow-folder-action/
;
; Place the script in your gimp scripts folder (eg. ~/.gimp-2.8/scripts) go to the
; folder with images you wish to add shadow to and execute like this:
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; gimp --no-data -i -b '(batch-drop-shadow "*.png" 3 3 5)' -b '(gimp-quit 0)'
;
(define (batch-drop-shadow pattern
offsetx
offsety
radius)
(let* ((filelist (cadr (file-glob pattern 1))))
(while (not (null? filelist))
(let* ((filename (car filelist))
(image (car (gimp-file-load RUN-NONINTERACTIVE filename filename)))
(drawable (car (gimp-image-get-active-layer image))))
(script-fu-drop-shadow image drawable offsetx offsety radius '(0 0 0) 80.0 TRUE)
(set! drawable (car (gimp-image-merge-visible-layers image 0)))
(gimp-file-save RUN-NONINTERACTIVE image drawable filename filename)
(gimp-image-delete image)
)
(set! filelist (cdr filelist))
)
)
)