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-rw-r--r--plug-ins/script-fu/scripts/lava.scm135
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+; GIMP - The GNU Image Manipulation Program
+; Copyright (C) 1995 Spencer Kimball and Peter Mattis
+;
+; Lava effect
+; Copyright (c) 1997 Adrian Likins
+; aklikins@eos.ncsu.edu
+;
+; based on a idea by Sven Riedel <lynx@heim8.tu-clausthal.de>
+; tweaked a bit by Sven Neumann <neumanns@uni-duesseldorf.de>
+;
+; 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 <https://www.gnu.org/licenses/>.
+
+
+(define (script-fu-lava image
+ drawable
+ seed
+ tile_size
+ mask_size
+ gradient
+ keep-selection
+ separate-layer
+ current-grad)
+ (let* (
+ (type (car (gimp-drawable-type-with-alpha drawable)))
+ (image-width (car (gimp-image-width image)))
+ (image-height (car (gimp-image-height image)))
+ (active-selection 0)
+ (selection-bounds 0)
+ (select-offset-x 0)
+ (select-offset-y 0)
+ (select-width 0)
+ (select-height 0)
+ (lava-layer 0)
+ (active-layer 0)
+ )
+
+ (gimp-context-push)
+ (gimp-context-set-defaults)
+ (gimp-image-undo-group-start image)
+
+ (if (= (car (gimp-drawable-has-alpha drawable)) FALSE)
+ (gimp-layer-add-alpha drawable)
+ )
+
+ (if (= (car (gimp-selection-is-empty image)) TRUE)
+ (gimp-image-select-item image CHANNEL-OP-REPLACE drawable)
+ )
+
+ (set! active-selection (car (gimp-selection-save image)))
+ (gimp-image-set-active-layer image drawable)
+
+ (set! selection-bounds (gimp-selection-bounds image))
+ (set! select-offset-x (cadr selection-bounds))
+ (set! select-offset-y (caddr selection-bounds))
+ (set! select-width (- (cadr (cddr selection-bounds)) select-offset-x))
+ (set! select-height (- (caddr (cddr selection-bounds)) select-offset-y))
+
+ (if (= separate-layer TRUE)
+ (begin
+ (set! lava-layer (car (gimp-layer-new image
+ select-width
+ select-height
+ type
+ "Lava Layer"
+ 100
+ LAYER-MODE-NORMAL-LEGACY)))
+
+ (gimp-image-insert-layer image lava-layer 0 -1)
+ (gimp-layer-set-offsets lava-layer select-offset-x select-offset-y)
+ (gimp-selection-none image)
+ (gimp-drawable-edit-clear lava-layer)
+
+ (gimp-image-select-item image CHANNEL-OP-REPLACE drawable)
+ (gimp-image-set-active-layer image lava-layer)
+ )
+ )
+
+ (set! active-layer (car (gimp-image-get-active-layer image)))
+
+ (if (= current-grad FALSE)
+ (gimp-context-set-gradient gradient)
+ )
+
+ (plug-in-solid-noise RUN-NONINTERACTIVE image active-layer FALSE TRUE seed 2 2 2)
+ (plug-in-cubism RUN-NONINTERACTIVE image active-layer tile_size 2.5 0)
+ (plug-in-oilify RUN-NONINTERACTIVE image active-layer mask_size 0)
+ (plug-in-edge RUN-NONINTERACTIVE image active-layer 2 0 0)
+ (plug-in-gauss-rle RUN-NONINTERACTIVE image active-layer 2 TRUE TRUE)
+ (plug-in-gradmap RUN-NONINTERACTIVE image active-layer)
+
+ (if (= keep-selection FALSE)
+ (gimp-selection-none image)
+ )
+
+ (gimp-image-set-active-layer image drawable)
+ (gimp-image-remove-channel image active-selection)
+
+ (gimp-image-undo-group-end image)
+ (gimp-context-pop)
+
+ (gimp-displays-flush)
+ )
+)
+
+(script-fu-register "script-fu-lava"
+ _"_Lava..."
+ _"Fill the current selection with lava"
+ "Adrian Likins <adrian@gimp.org>"
+ "Adrian Likins"
+ "10/12/97"
+ "RGB* GRAY*"
+ SF-IMAGE "Image" 0
+ SF-DRAWABLE "Drawable" 0
+ SF-ADJUSTMENT _"Seed" '(10 1 30000 1 10 0 1)
+ SF-ADJUSTMENT _"Size" '(10 0 100 1 10 0 1)
+ SF-ADJUSTMENT _"Roughness" '(7 3 50 1 10 0 0)
+ SF-GRADIENT _"Gradient" "German flag smooth"
+ SF-TOGGLE _"Keep selection" TRUE
+ SF-TOGGLE _"Separate layer" TRUE
+ SF-TOGGLE _"Use current gradient" FALSE
+)
+
+(script-fu-menu-register "script-fu-lava"
+ "<Image>/Filters/Render")