mirror of https://github.com/GNOME/gimp.git
161 lines
4.9 KiB
Scheme
161 lines
4.9 KiB
Scheme
; GIMP - The GNU Image Manipulation Program
|
|
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
;
|
|
; Beveled pattern arrow for web pages
|
|
; 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 <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
(define (script-fu-beveled-pattern-arrow size orientation pattern)
|
|
|
|
(define (make-point x y)
|
|
(cons x y)
|
|
)
|
|
|
|
(define (point-x p)
|
|
(car p)
|
|
)
|
|
|
|
(define (point-y p)
|
|
(cdr p)
|
|
)
|
|
|
|
(define (point-list->double-array point-list)
|
|
(let* (
|
|
(how-many (length point-list))
|
|
(a (cons-array (* 2 how-many) 'double))
|
|
(count 0)
|
|
)
|
|
|
|
(for-each (lambda (p)
|
|
(aset a (* count 2) (point-x p))
|
|
(aset a (+ 1 (* count 2)) (point-y p))
|
|
(set! count (+ count 1)))
|
|
point-list
|
|
)
|
|
a
|
|
)
|
|
)
|
|
|
|
(define (rotate-points points size orientation)
|
|
(map (lambda (p)
|
|
(let ((px (point-x p))
|
|
(py (point-y p)))
|
|
(cond ((= orientation 0) (make-point px py)) ; right
|
|
((= orientation 1) (make-point (- size px) py)) ; left
|
|
((= orientation 2) (make-point py (- size px))) ; up
|
|
((= orientation 3) (make-point py px)) ; down
|
|
)
|
|
)
|
|
)
|
|
points
|
|
)
|
|
)
|
|
|
|
(define (make-arrow size offset)
|
|
(list (make-point offset offset)
|
|
(make-point (- size offset) (/ size 2))
|
|
(make-point offset (- size offset)))
|
|
)
|
|
|
|
; the main function
|
|
|
|
(let* (
|
|
(img (car (gimp-image-new size size RGB)))
|
|
(background (car (gimp-layer-new img size size RGB-IMAGE "Arrow" 100 NORMAL-MODE)))
|
|
(bumpmap (car (gimp-layer-new img size size RGB-IMAGE "Bumpmap" 100 NORMAL-MODE)))
|
|
(big-arrow (point-list->double-array (rotate-points (make-arrow size 6) size orientation)))
|
|
(med-arrow (point-list->double-array (rotate-points (make-arrow size 7) size orientation)))
|
|
(small-arrow (point-list->double-array (rotate-points (make-arrow size 8) size orientation)))
|
|
)
|
|
|
|
(gimp-context-push)
|
|
|
|
(gimp-image-undo-disable img)
|
|
(gimp-image-add-layer img background -1)
|
|
(gimp-image-add-layer img bumpmap -1)
|
|
|
|
; Create pattern layer
|
|
|
|
(gimp-context-set-background '(0 0 0))
|
|
(gimp-edit-fill background BACKGROUND-FILL)
|
|
(gimp-context-set-pattern pattern)
|
|
(gimp-edit-bucket-fill background PATTERN-BUCKET-FILL NORMAL-MODE 100 0 FALSE 0 0)
|
|
|
|
; Create bumpmap layer
|
|
|
|
(gimp-edit-fill bumpmap BACKGROUND-FILL)
|
|
|
|
(gimp-context-set-background '(127 127 127))
|
|
(gimp-rect-select img 1 1 (- size 2) (- size 2) CHANNEL-OP-REPLACE FALSE 0)
|
|
(gimp-edit-fill bumpmap BACKGROUND-FILL)
|
|
|
|
(gimp-context-set-background '(255 255 255))
|
|
(gimp-rect-select img 2 2 (- size 4) (- size 4) CHANNEL-OP-REPLACE FALSE 0)
|
|
(gimp-edit-fill bumpmap BACKGROUND-FILL)
|
|
|
|
(gimp-context-set-background '(127 127 127))
|
|
(gimp-free-select img 6 big-arrow CHANNEL-OP-REPLACE TRUE FALSE 0)
|
|
(gimp-edit-fill bumpmap BACKGROUND-FILL)
|
|
|
|
(gimp-context-set-background '(0 0 0))
|
|
(gimp-free-select img 6 med-arrow CHANNEL-OP-REPLACE TRUE FALSE 0)
|
|
(gimp-edit-fill bumpmap BACKGROUND-FILL)
|
|
|
|
(gimp-selection-none img)
|
|
|
|
; Bumpmap
|
|
|
|
(plug-in-bump-map RUN-NONINTERACTIVE img background bumpmap 135 45 2 0 0 0 0 TRUE FALSE 0)
|
|
|
|
; Darken arrow
|
|
|
|
(gimp-context-set-background '(255 255 255))
|
|
(gimp-edit-fill bumpmap BACKGROUND-FILL)
|
|
|
|
(gimp-context-set-background '(192 192 192))
|
|
(gimp-free-select img 6 small-arrow CHANNEL-OP-REPLACE TRUE FALSE 0)
|
|
(gimp-edit-fill bumpmap BACKGROUND-FILL)
|
|
|
|
(gimp-selection-none img)
|
|
|
|
(gimp-layer-set-mode bumpmap MULTIPLY-MODE)
|
|
|
|
(gimp-image-flatten img)
|
|
|
|
(gimp-image-undo-enable img)
|
|
(gimp-display-new img)
|
|
|
|
(gimp-context-pop)
|
|
)
|
|
)
|
|
|
|
|
|
(script-fu-register "script-fu-beveled-pattern-arrow"
|
|
_"_Arrow..."
|
|
_"Create a beveled pattern arrow for webpages"
|
|
"Federico Mena Quintero"
|
|
"Federico Mena Quintero"
|
|
"July 1997"
|
|
""
|
|
SF-ADJUSTMENT _"Size" '(32 5 150 1 10 0 1)
|
|
SF-OPTION _"Orientation" '(_"Right" _"Left" _"Up" _"Down")
|
|
SF-PATTERN _"Pattern" "Wood"
|
|
)
|
|
|
|
(script-fu-menu-register "script-fu-beveled-pattern-arrow"
|
|
"<Image>/File/Create/Web Page Themes/Beveled Pattern")
|