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|
; GIMP - The GNU Image Manipulation Program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; Gradient example script --- create an example image of a custom gradient
; Copyright (C) 1997 Federico Mena Quintero
; federico@nuclecu.unam.mx
;
; 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-gradient-example width
height
gradient-reverse)
(let* (
(img (car (gimp-image-new width height RGB)))
(drawable (car (gimp-layer-new img "Gradient example" width height RGB
100 LAYER-MODE-NORMAL)))
; Calculate colors for checkerboard... just like in the gradient editor
(fg-color (* 255 (/ 2 3)))
(bg-color (* 255 (/ 1 3)))
)
(gimp-image-undo-disable img)
(gimp-image-insert-layer img drawable 0 0)
; Render background checkerboard
(gimp-context-push)
(gimp-context-set-foreground (list fg-color fg-color fg-color))
(gimp-context-set-background (list bg-color bg-color bg-color))
(plug-in-checkerboard #:run-mode RUN-NONINTERACTIVE
#:image img
#:drawables (vector drawable)
#:psychobilly 0
#:check-size 8)
(gimp-context-pop)
; Render gradient
(gimp-context-push)
(gimp-context-set-gradient-reverse gradient-reverse)
(gimp-drawable-edit-gradient-fill drawable
GRADIENT-LINEAR 0
FALSE 1 0
TRUE
0 0 (- width 1) 0)
(gimp-context-pop)
; Terminate
(gimp-image-undo-enable img)
(gimp-display-new img)
)
)
(script-fu-register-procedure "script-fu-gradient-example"
_"Custom _Gradient..."
_"Create an image filled with an example of the current gradient"
"Federico Mena Quintero"
"June 1997"
SF-ADJUSTMENT _"Width" '(400 1 2000 1 10 0 1)
SF-ADJUSTMENT _"Height" '(30 1 2000 1 10 0 1)
SF-TOGGLE _"Gradient reverse" FALSE
)
(script-fu-menu-register "script-fu-gradient-example"
"<Gradients>/Gradients Menu")
|
