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; Set Colormap v1.1 September 29, 2004
; by Kevin Cozens <kcozens@interlog.com>
;
; Change the colormap of an image to the colors in a specified palette.
; Included is script-fu-make-cmap-array (available for use in scripts) which
; returns a GBytes containing the colors from a specified palette.
; This array can be used as the cmap argument for gimp-image-set-colormap.
; 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 <https://www.gnu.org/licenses/>.
(define (script-fu-make-cmap-array palette)
(let* (
(num-colors (car (gimp-palette-get-color-count palette)))
; cons-array is not Scheme standard
; but was in SIOD and is in script-fu-compat.init
(cmap (cons-array (* num-colors 3) 'byte))
(color 0)
(i 0)
)
(while (< i num-colors)
(set! color (car (gimp-palette-entry-get-color palette i)))
(vector-set! cmap (* i 3) (car color))
(vector-set! cmap (+ (* i 3) 1) (cadr color))
(vector-set! cmap (+ (* i 3) 2) (caddr color))
(set! i (+ i 1))
)
cmap
)
)
(define (script-fu-set-cmap img drawables palette)
(gimp-image-set-palette img palette)
(gimp-displays-flush)
)
(script-fu-register-filter "script-fu-set-cmap"
_"Se_t Colormap..."
_"Change the colormap of an image to the colors in a specified palette."
"Kevin Cozens <kcozens@interlog.com>"
"Kevin Cozens"
"September 29, 2004"
"INDEXED*"
SF-ONE-OR-MORE-DRAWABLE
SF-PALETTE _"Palette" "Default"
)
(script-fu-menu-register "script-fu-set-cmap" "<Image>/Colors/Map/[Colormap]")
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