; 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.
(define (sg-alpha-to-svg-file image drawable constraint svg-file)
(define (get-real-layers image . fundament)
(let ((fundament (if (pair? fundament)
(car fundament)
#f )))
(let loop ((children (vector->list (cadr (if fundament
(gimp-item-get-children fundament)
(gimp-image-get-layers image) ))))
(layers '()) )
(if (null? children)
layers
(loop (cdr children)
(if (= TRUE (car (gimp-item-is-group (car children))))
(append layers (get-real-layers image (car children)))
(append layers (list (car children))) ))))))
(gimp-image-undo-group-start image)
(let loop ((layers (reverse
(case constraint
((0) ; all layers
(get-real-layers image) )
((1) ; visibles
(let loop ((layers (get-real-layers image))
(visibles '()) )
(if (null? layers)
(reverse visibles)
(loop (cdr layers)
(if (= TRUE (car (gimp-item-get-visible (car layers))))
(cons (car layers) visibles)
visibles )))))
((2) ; linked
(let loop ((layers (get-real-layers image))
(linkeds '()) )
(if (null? layers)
(reverse linkeds)
(loop (cdr layers)
(if (= TRUE (car (gimp-item-get-linked (car layers))))
(cons (car layers) linkeds)
visibles )))))
((3) ; active
(list drawable) )))))
(unless (null? layers)
(let* ((layer (car layers))
(name (car (gimp-item-get-name layer))) )
(gimp-image-select-item image CHANNEL-OP-REPLACE layer)
(plug-in-sel2path-advanced RUN-NONINTERACTIVE
image
layer
0.50 ; align-threshold
60.00 ; corner-always-threshold
4 ; corner-surround
100.00 ; corner-threshold
0.40 ; error-threshold
1 ; filter-alternative-surround
10.00 ; filter-epsilon
4 ; filter-iteration-count
0.33 ; filter-percent
3 ; filter-secondary-surround
2 ; filter-surround
TRUE ; keep-knees
0.010 ; line-reversion-threshold
0.50 ; line-threshold
0.01 ; reparameterize-improvement
1.00 ; reparameterize-threshold
0.10 ; subdivide-search
4 ; subdivide-surround
0.03 ; subdivide-threshold
3 ; tangent-surround
)
(gimp-item-set-name (car (gimp-image-get-active-vectors image)) name)
(loop (cdr layers)) )))
(gimp-vectors-export-to-file image
svg-file
0 )
(gimp-image-undo-group-end image)
)
(script-fu-register "sg-alpha-to-svg-file"
"Save alpha to SVG..."
"Save alpha to SVG using layer names as filenames"
"Saul Goode"
"Saul Goode"
"January 2014"
"RGB* GRAY*"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-OPTION "Layers" '("All layers" "Visible layers" "Linked layers" "Active layer")
SF-FILENAME "File name" ""
)
(script-fu-menu-register "sg-alpha-to-svg-file"
"<Image>/Filters/Misc/" )