/usr/share/gimp/2.0/scripts/drop-shadow.scm is in gimp-data 2.8.16-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 | ; GIMP - The GNU Image Manipulation Program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; 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.
;
; You should have received a copy of the GNU General Public License
; along with this program. If not, see <http://www.gnu.org/licenses/>.
;
;
; drop-shadow.scm version 1.05 2011/4/21
;
; CHANGE-LOG:
; 1.00 - initial release
; 1.01 - fixed the problem with a remaining copy of the selection
; 1.02 - some code cleanup, no real changes
; 1.03 - can't call gimp-edit-fill until layer is added to image!
; 1.04
; 1.05 - replaced deprecated function calls with new ones for 2.8
;
; Copyright (C) 1997-1999 Sven Neumann <sven@gimp.org>
;
;
; Adds a drop-shadow of the current selection or alpha-channel.
;
; This script is derived from my script add-shadow, which has become
; obsolete now. Thanks to Andrew Donkin (ard@cs.waikato.ac.nz) for his
; idea to add alpha-support to add-shadow.
(define (script-fu-drop-shadow image
drawable
shadow-transl-x
shadow-transl-y
shadow-blur
shadow-color
shadow-opacity
allow-resize)
(let* (
(shadow-blur (max shadow-blur 0))
(shadow-opacity (min shadow-opacity 100))
(shadow-opacity (max shadow-opacity 0))
(type (car (gimp-drawable-type-with-alpha drawable)))
(image-width (car (gimp-image-width image)))
(image-height (car (gimp-image-height image)))
(from-selection 0)
(active-selection 0)
(shadow-layer 0)
)
(gimp-context-push)
(gimp-context-set-defaults)
(gimp-image-set-active-layer image drawable)
(gimp-image-undo-group-start image)
(gimp-layer-add-alpha drawable)
(if (= (car (gimp-selection-is-empty image)) TRUE)
(begin
(gimp-image-select-item image CHANNEL-OP-REPLACE drawable)
(set! from-selection FALSE))
(begin
(set! from-selection TRUE)
(set! active-selection (car (gimp-selection-save image)))))
(let* ((selection-bounds (gimp-selection-bounds image))
(select-offset-x (cadr selection-bounds))
(select-offset-y (caddr selection-bounds))
(select-width (- (cadr (cddr selection-bounds)) select-offset-x))
(select-height (- (caddr (cddr selection-bounds)) select-offset-y))
(shadow-width (+ select-width (* 2 shadow-blur)))
(shadow-height (+ select-height (* 2 shadow-blur)))
(shadow-offset-x (- select-offset-x shadow-blur))
(shadow-offset-y (- select-offset-y shadow-blur)))
(if (= allow-resize TRUE)
(let* ((new-image-width image-width)
(new-image-height image-height)
(image-offset-x 0)
(image-offset-y 0))
(if (< (+ shadow-offset-x shadow-transl-x) 0)
(begin
(set! image-offset-x (- 0 (+ shadow-offset-x
shadow-transl-x)))
(set! shadow-offset-x (- 0 shadow-transl-x))
(set! new-image-width (+ new-image-width image-offset-x))))
(if (< (+ shadow-offset-y shadow-transl-y) 0)
(begin
(set! image-offset-y (- 0 (+ shadow-offset-y
shadow-transl-y)))
(set! shadow-offset-y (- 0 shadow-transl-y))
(set! new-image-height (+ new-image-height image-offset-y))))
(if (> (+ (+ shadow-width shadow-offset-x) shadow-transl-x)
new-image-width)
(set! new-image-width
(+ (+ shadow-width shadow-offset-x) shadow-transl-x)))
(if (> (+ (+ shadow-height shadow-offset-y) shadow-transl-y)
new-image-height)
(set! new-image-height
(+ (+ shadow-height shadow-offset-y) shadow-transl-y)))
(gimp-image-resize image
new-image-width
new-image-height
image-offset-x
image-offset-y)
)
)
(set! shadow-layer (car (gimp-layer-new image
shadow-width
shadow-height
type
"Drop Shadow"
shadow-opacity
NORMAL-MODE)))
(gimp-image-set-active-layer image drawable)
(gimp-image-insert-layer image shadow-layer 0 -1)
(gimp-layer-set-offsets shadow-layer
shadow-offset-x
shadow-offset-y))
(gimp-drawable-fill shadow-layer TRANSPARENT-FILL)
(gimp-context-set-background shadow-color)
(gimp-edit-fill shadow-layer BACKGROUND-FILL)
(gimp-selection-none image)
(gimp-layer-set-lock-alpha shadow-layer FALSE)
(if (>= shadow-blur 1.0) (plug-in-gauss-rle RUN-NONINTERACTIVE
image
shadow-layer
shadow-blur
TRUE
TRUE))
(gimp-layer-translate shadow-layer shadow-transl-x shadow-transl-y)
(if (= from-selection TRUE)
(begin
(gimp-image-select-item image CHANNEL-OP-REPLACE active-selection)
(gimp-edit-clear shadow-layer)
(gimp-image-remove-channel image active-selection)))
(if (and
(= (car (gimp-layer-is-floating-sel drawable)) 0)
(= from-selection FALSE))
(gimp-image-raise-item image drawable))
(gimp-image-set-active-layer image drawable)
(gimp-image-undo-group-end image)
(gimp-displays-flush)
(gimp-context-pop)
)
)
(script-fu-register "script-fu-drop-shadow"
_"_Drop Shadow..."
_"Add a drop shadow to the selected region (or alpha)"
"Sven Neumann <sven@gimp.org>"
"Sven Neumann"
"1999/12/21"
"RGB* GRAY*"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-ADJUSTMENT _"Offset X" '(4 -4096 4096 1 10 0 1)
SF-ADJUSTMENT _"Offset Y" '(4 -4096 4096 1 10 0 1)
SF-ADJUSTMENT _"Blur radius" '(15 0 1024 1 10 0 1)
SF-COLOR _"Color" "black"
SF-ADJUSTMENT _"Opacity" '(60 0 100 1 10 0 0)
SF-TOGGLE _"Allow resizing" TRUE
)
(script-fu-menu-register "script-fu-drop-shadow"
"<Image>/Filters/Light and Shadow/Shadow")
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