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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 03:13:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 03:13:10 +0000
commit3c57dd931145d43f2b0aef96c4d178135956bf91 (patch)
tree3de698981e9f0cc2c4f9569b19a5f3595e741f6b /plug-ins/script-fu/scripts/grid-system.scm
parentInitial commit. (diff)
downloadgimp-3c57dd931145d43f2b0aef96c4d178135956bf91.tar.xz
gimp-3c57dd931145d43f2b0aef96c4d178135956bf91.zip
Adding upstream version 2.10.36.upstream/2.10.36
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plug-ins/script-fu/scripts/grid-system.scm')
-rw-r--r--plug-ins/script-fu/scripts/grid-system.scm95
1 files changed, 95 insertions, 0 deletions
diff --git a/plug-ins/script-fu/scripts/grid-system.scm b/plug-ins/script-fu/scripts/grid-system.scm
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+;;; grid-system.scm -*-scheme-*-
+;;; Time-stamp: <1998/01/20 23:22:02 narazaki@InetQ.or.jp>
+;;; This file is a part of:
+;;; GIMP (Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis)
+;;; Author: Shuji Narazaki (narazaki@InetQ.or.jp)
+;;; Version 0.6
+
+;;; Code:
+(if (not (symbol-bound? 'script-fu-grid-system-x-divides (current-environment)))
+ (define script-fu-grid-system-x-divides "'(1 g 1)"))
+(if (not (symbol-bound? 'script-fu-grid-system-y-divides (current-environment)))
+ (define script-fu-grid-system-y-divides "'(1 g 1)"))
+
+(define (script-fu-grid-system img drw x-divides-orig y-divides-orig)
+ (define (update-segment! s x0 y0 x1 y1)
+ (aset s 0 x0)
+ (aset s 1 y0)
+ (aset s 2 x1)
+ (aset s 3 y1))
+ (define (map proc seq)
+ (if (null? seq)
+ '()
+ (cons (proc (car seq))
+ (map proc (cdr seq)))))
+ (define (convert-g l)
+ (cond ((null? l) '())
+ ((eq? (car l) 'g) (cons 1.618 (convert-g (cdr l))))
+ ((eq? (car l) '1/g) (cons 0.618 (convert-g (cdr l))))
+ ('else (cons (car l) (convert-g (cdr l))))))
+ (define (wrap-list l)
+ (define (wrap-object obj)
+ (cond ((number? obj) (string-append (number->string obj) " "))
+ ((eq? obj 'g) "g ")
+ (eq? obj '1/g) "1/g "))
+ (string-append "'(" (apply string-append (map wrap-object l)) ")"))
+ (let* ((drw-width (car (gimp-drawable-width drw)))
+ (drw-height (car (gimp-drawable-height drw)))
+ (drw-offset-x (nth 0 (gimp-drawable-offsets drw)))
+ (drw-offset-y (nth 1 (gimp-drawable-offsets drw)))
+ (grid-layer #f)
+ (segment (cons-array 4 'double))
+ (stepped-x 0)
+ (stepped-y 0)
+ (temp 0)
+ (total-step-x 0)
+ (total-step-y 0)
+ (x-divides (convert-g x-divides-orig))
+ (y-divides (convert-g y-divides-orig))
+ (total-step-x (apply + x-divides))
+ (total-step-y (apply + y-divides)))
+
+ (gimp-image-undo-group-start img)
+
+ (set! grid-layer (car (gimp-layer-copy drw TRUE)))
+ (gimp-image-insert-layer img grid-layer 0 0)
+ (gimp-drawable-edit-clear grid-layer)
+ (gimp-item-set-name grid-layer "Grid Layer")
+
+ (while (not (null? (cdr x-divides)))
+ (set! stepped-x (+ stepped-x (car x-divides)))
+ (set! temp (* drw-width (/ stepped-x total-step-x)))
+ (set! x-divides (cdr x-divides))
+ (update-segment! segment
+ (+ drw-offset-x temp) drw-offset-y
+ (+ drw-offset-x temp) (+ drw-offset-y drw-height))
+ (gimp-pencil grid-layer 4 segment))
+
+ (while (not (null? (cdr y-divides)))
+ (set! stepped-y (+ stepped-y (car y-divides)))
+ (set! temp (* drw-height (/ stepped-y total-step-y)))
+ (set! y-divides (cdr y-divides))
+ (update-segment! segment
+ drw-offset-x (+ drw-offset-y temp)
+ (+ drw-offset-x drw-width) (+ drw-offset-y temp))
+ (gimp-pencil grid-layer 4 segment))
+
+ (gimp-image-undo-group-end img)
+
+ (set! script-fu-grid-system-x-divides (wrap-list x-divides-orig))
+ (set! script-fu-grid-system-y-divides (wrap-list y-divides-orig))
+ (gimp-displays-flush)))
+
+(script-fu-register "script-fu-grid-system"
+ _"_Grid..."
+ _"Draw a grid as specified by the lists of X and Y locations using the current brush"
+ "Shuji Narazaki <narazaki@InetQ.or.jp>"
+ "Shuji Narazaki"
+ "1997"
+ "RGB*, INDEXED*, GRAY*"
+ SF-IMAGE "Image to use" 0
+ SF-DRAWABLE "Drawable to draw grid" 0
+ SF-VALUE _"X divisions" script-fu-grid-system-x-divides
+ SF-VALUE _"Y divisions" script-fu-grid-system-y-divides
+)
+