66 lines
2.2 KiB
Scheme
66 lines
2.2 KiB
Scheme
|
; 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 pika-image-set-colormap.
|
||
|
|
|
||
|
|
; PIKA - Photo and Image Kooker Application
|
||
|
|
; 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 (pika-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 (pika-palette-entry-get-color palette i)))
|
||
|
|
(aset cmap (* i 3) (car color))
|
||
|
|
(aset cmap (+ (* i 3) 1) (cadr color))
|
||
|
|
(aset cmap (+ (* i 3) 2) (caddr color))
|
||
|
|
(set! i (+ i 1))
|
||
|
|
)
|
||
|
|
|
||
|
|
cmap
|
||
|
|
)
|
||
|
|
)
|
||
|
|
|
||
|
|
(define (script-fu-set-cmap img drawable palette)
|
||
|
|
(pika-image-set-colormap img
|
||
|
|
(script-fu-make-cmap-array palette))
|
||
|
|
(pika-displays-flush)
|
||
|
|
)
|
||
|
|
|
||
|
|
(script-fu-register "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-IMAGE "Image" 0
|
||
|
|
SF-DRAWABLE "Drawable" 0
|
||
|
|
SF-PALETTE _"Palette" "Default"
|
||
|
|
)
|
||
|
|
|
||
|
|
(script-fu-menu-register "script-fu-set-cmap" "<Image>/Colors/Map/[Colormap]")
|
