mirror of https://github.com/GNOME/gimp.git
93 lines
3.3 KiB
Scheme
93 lines
3.3 KiB
Scheme
; The GIMP -- an image manipulation program
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; Copyright (C) 1995 Spencer Kimball and Peter Mattis
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;
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; Alien Glow themed bullets for web pages
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; Copyright (c) 1997 Adrian Likins
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; aklikins@eos.ncsu.edu
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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 2 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, write to the Free Software
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; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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(define (center-ellipse img cx cy rx ry op aa feather frad)
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(gimp-ellipse-select img (- cx rx) (- cy ry) (+ rx rx ) (+ ry ry ) op aa feather frad))
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(define (script-fu-alien-glow-bullet radius glow-color bg-color flatten)
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(let* ((img (car (gimp-image-new radius radius RGB)))
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(border (/ radius 4))
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(diameter (* radius 2))
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(half-radius (/ radius 2))
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(blend-start (+ half-radius (/ half-radius 2)))
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(bullet-layer (car (gimp-layer-new img diameter diameter RGBA_IMAGE "Ruler" 100 NORMAL)))
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(glow-layer (car (gimp-layer-new img diameter diameter RGBA_IMAGE "ALien Glow" 100 NORMAL)))
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(bg-layer (car (gimp-layer-new img diameter diameter RGB_IMAGE "Back" 100 NORMAL)))
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(old-fg (car (gimp-palette-get-foreground)))
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(old-bg (car (gimp-palette-get-background))))
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(gimp-image-disable-undo img)
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(gimp-image-resize img diameter diameter 0 0)
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(gimp-image-add-layer img bg-layer 1)
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(gimp-image-add-layer img glow-layer -1)
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(gimp-image-add-layer img bullet-layer -1)
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; (gimp-layer-set-preserve-trans ruler-layer TRUE)
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(gimp-palette-set-background bg-color)
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(gimp-edit-fill bg-layer)
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(gimp-edit-clear glow-layer)
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(gimp-edit-clear bullet-layer)
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(center-ellipse img radius radius half-radius half-radius REPLACE TRUE FALSE 0)
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; (gimp-rect-select img (/ height 2) (/ height 2) length height REPLACE FALSE 0)
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(gimp-palette-set-foreground '(90 90 90))
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(gimp-palette-set-background '(0 0 0))
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(gimp-blend bullet-layer FG-BG-RGB NORMAL RADIAL 100 0 REPEAT-NONE FALSE 0 0 blend-start blend-start (+ half-radius radius)(+ half-radius radius ))
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(gimp-palette-set-background glow-color)
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(gimp-selection-grow img border)
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(gimp-selection-feather img border)
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(gimp-edit-fill glow-layer)
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(gimp-selection-none img)
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(if (>= radius 16)
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(plug-in-gauss-rle 1 img glow-layer 25 TRUE TRUE)
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(plug-in-gauss-rle 1 img glow-layer 12 TRUE TRUE))
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(gimp-palette-set-background old-bg)
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(gimp-palette-set-foreground old-fg)
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(if (= flatten TRUE)
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(gimp-image-flatten img))
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(gimp-image-enable-undo img)
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(gimp-display-new img)))
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(script-fu-register "script-fu-alien-glow-bullet"
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"<Toolbox>/Xtns/Script-Fu/Web page themes/Alien Glow/Bullet"
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"Create a Bullet with an Alien Glow them for web pages"
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"Adrian Likins"
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"Adrian Likins"
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"1997"
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""
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SF-VALUE "Radius" "16"
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SF-COLOR "Glow Color" '(63 252 0)
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SF-COLOR "Background Color" '(0 0 0)
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SF-TOGGLE "Flatten Image?" TRUE)
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