148 lines
5.3 KiB
Scheme
148 lines
5.3 KiB
Scheme
; PIKA - Photo and Image Kooker Application
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; Copyright (C) 1995 Spencer Kimball and Peter Mattis
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;
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; Circuit board effect
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; Copyright (c) 1997 Adrian Likins
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;
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; Generates what looks a little like the back of an old circuit board.
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; Looks even better when gradient-mapp'ed with a suitable gradient.
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;
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; This program is free software: you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 3 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program. If not, see <https://www.gnu.org/licenses/>.
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(define (script-fu-circuit image
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drawable
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mask-size
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seed
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remove-bg
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keep-selection
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separate-layer)
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(let* (
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(type (car (pika-drawable-type-with-alpha drawable)))
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(image-width (car (pika-image-get-width image)))
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(image-height (car (pika-image-get-height image)))
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(active-selection 0)
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(from-selection 0)
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(selection-bounds 0)
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(select-offset-x 0)
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(select-offset-y 0)
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(select-width 0)
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(select-height 0)
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(effect-layer 0)
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(active-layer 0)
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)
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(pika-context-push)
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(pika-context-set-defaults)
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(pika-image-undo-group-start image)
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(pika-layer-add-alpha drawable)
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(if (= (car (pika-selection-is-empty image)) TRUE)
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(begin
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(pika-image-select-item image CHANNEL-OP-REPLACE drawable)
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(set! active-selection (car (pika-selection-save image)))
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(set! from-selection FALSE))
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(begin
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(set! from-selection TRUE)
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(set! active-selection (car (pika-selection-save image)))))
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(set! selection-bounds (pika-selection-bounds image))
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(set! select-offset-x (cadr selection-bounds))
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(set! select-offset-y (caddr selection-bounds))
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(set! select-width (- (cadr (cddr selection-bounds)) select-offset-x))
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(set! select-height (- (caddr (cddr selection-bounds)) select-offset-y))
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(if (= separate-layer TRUE)
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(begin
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(set! effect-layer (car (pika-layer-new image
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select-width
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select-height
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type
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_"Effect layer"
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100
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LAYER-MODE-NORMAL)))
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(pika-image-insert-layer image effect-layer 0 -1)
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(pika-layer-set-offsets effect-layer select-offset-x select-offset-y)
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(pika-selection-none image)
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(pika-drawable-edit-clear effect-layer)
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(pika-image-select-item image CHANNEL-OP-REPLACE active-selection)
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(pika-edit-copy 1 (vector drawable))
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(let* (
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(pasted (pika-edit-paste effect-layer FALSE))
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(num-pasted (car pasted))
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(floating-sel (aref (cadr pasted) (- num-pasted 1)))
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)
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(pika-floating-sel-anchor floating-sel)
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)
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(pika-image-set-selected-layers image 1 (vector effect-layer)))
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(set! effect-layer drawable)
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)
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(set! active-layer effect-layer)
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(if (= remove-bg TRUE)
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(pika-context-set-foreground '(0 0 0))
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(pika-context-set-foreground '(14 14 14))
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)
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(pika-image-select-item image CHANNEL-OP-REPLACE active-selection)
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(plug-in-maze RUN-NONINTERACTIVE image active-layer 5 5 TRUE 0 seed 57 1)
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(plug-in-oilify RUN-NONINTERACTIVE image active-layer mask-size 0)
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(plug-in-edge RUN-NONINTERACTIVE image active-layer 2 1 0)
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(if (= type RGBA-IMAGE)
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(pika-drawable-desaturate active-layer DESATURATE-LIGHTNESS))
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(if (and
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(= remove-bg TRUE)
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(= separate-layer TRUE))
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(begin
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(pika-image-select-color image CHANNEL-OP-REPLACE active-layer '(0 0 0))
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(pika-drawable-edit-clear active-layer)))
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(if (= keep-selection FALSE)
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(pika-selection-none image))
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(pika-image-remove-channel image active-selection)
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(pika-image-set-selected-layers image 1 (vector drawable))
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(pika-image-undo-group-end image)
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(pika-displays-flush)
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(pika-context-pop)
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)
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)
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(script-fu-register "script-fu-circuit"
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_"_Circuit..."
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_"Fill the selected region (or alpha) with traces like those on a circuit board"
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"Adrian Likins <adrian@gimp.org>"
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"Adrian Likins"
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"10/17/97"
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"RGB* GRAY*"
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SF-IMAGE "Image" 0
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SF-DRAWABLE "Drawable" 0
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SF-ADJUSTMENT _"Oilify mask size" '(17 3 50 1 10 0 1)
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SF-ADJUSTMENT _"Circuit seed" '(3 1 3000000 1 10 0 1)
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SF-TOGGLE _"No background (only for separate layer)" FALSE
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SF-TOGGLE _"Keep selection" TRUE
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SF-TOGGLE _"Separate layer" TRUE
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)
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(script-fu-menu-register "script-fu-circuit"
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"<Image>/Filters/Render")
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