mirror of
https://gitlab.gnome.org/GNOME/gimp
synced 2024-10-22 04:22:29 +00:00
b8b5d7834d
* plug-ins/script-fu/scripts/*: removed the image
argument from functions that no longer need it.
65 lines
2.3 KiB
Scheme
65 lines
2.3 KiB
Scheme
; The GIMP -- an 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 2 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, write to the Free Software
|
|
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
(define (script-fu-gradient-example width height)
|
|
(let* ((img (car (gimp-image-new width height RGB)))
|
|
(drawable (car (gimp-layer-new img width height RGB "Gradient example" 100 NORMAL)))
|
|
|
|
; Save old foreground and background colors
|
|
|
|
(old-fg-color (car (gimp-palette-get-foreground)))
|
|
(old-bg-color (car (gimp-palette-get-background)))
|
|
|
|
; Calculate colors for checkerboard... just like in the gradient editor
|
|
|
|
(fg-color (* 255 (/ 2 3)))
|
|
(bg-color (* 255 (/ 1 3))))
|
|
|
|
(gimp-image-disable-undo img)
|
|
(gimp-image-add-layer img drawable 0)
|
|
|
|
; Render background checkerboard
|
|
|
|
(gimp-palette-set-foreground (list fg-color fg-color fg-color))
|
|
(gimp-palette-set-background (list bg-color bg-color bg-color))
|
|
(plug-in-checkerboard 1 img drawable 0 8)
|
|
|
|
; Render gradient
|
|
|
|
(gimp-blend drawable CUSTOM NORMAL LINEAR 100 0 REPEAT-NONE FALSE 0 0 0 0 (- width 1) 0)
|
|
|
|
; Terminate
|
|
|
|
(gimp-palette-set-foreground old-fg-color)
|
|
(gimp-palette-set-background old-bg-color)
|
|
(gimp-image-enable-undo img)
|
|
(gimp-display-new img)))
|
|
|
|
(script-fu-register "script-fu-gradient-example"
|
|
"<Toolbox>/Xtns/Script-Fu/Utils/Custom Gradient"
|
|
"Create an example image of a custom gradient"
|
|
"Federico Mena Quintero"
|
|
"Federico Mena Quintero"
|
|
"June 1997"
|
|
""
|
|
SF-VALUE "Width" "400"
|
|
SF-VALUE "Height" "32")
|