mirror of https://github.com/GNOME/gimp.git
109 lines
3.9 KiB
Scheme
109 lines
3.9 KiB
Scheme
; GIMP - The GNU 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 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 <http://www.gnu.org/licenses/>.
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(define (script-fu-alien-glow-bullet radius
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glow-color
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bg-color
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flatten)
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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)
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op aa feather frad)
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)
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(let* (
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(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
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diameter diameter RGBA-IMAGE
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"Ruler" 100 NORMAL-MODE)))
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(glow-layer (car (gimp-layer-new img diameter diameter RGBA-IMAGE
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"ALien Glow" 100 NORMAL-MODE)))
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(bg-layer (car (gimp-layer-new img diameter diameter RGB-IMAGE
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"Background" 100 NORMAL-MODE)))
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)
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(gimp-context-push)
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(gimp-image-undo-disable 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-lock-alpha ruler-layer TRUE)
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(gimp-context-set-background bg-color)
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(gimp-edit-fill bg-layer BACKGROUND-FILL)
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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
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CHANNEL-OP-REPLACE TRUE FALSE 0)
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; (gimp-rect-select img (/ height 2) (/ height 2) length height CHANNEL-OP-REPLACE FALSE 0)
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(gimp-context-set-foreground '(90 90 90))
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(gimp-context-set-background '(0 0 0))
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(gimp-edit-blend bullet-layer FG-BG-RGB-MODE NORMAL-MODE
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GRADIENT-RADIAL 100 0 REPEAT-NONE FALSE
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FALSE 0 0 TRUE
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blend-start blend-start
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(+ half-radius radius) (+ half-radius radius))
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(gimp-context-set-foreground 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 FOREGROUND-FILL)
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(gimp-selection-none img)
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(if (>= radius 16)
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(plug-in-gauss-rle RUN-NONINTERACTIVE img glow-layer 25 TRUE TRUE)
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(plug-in-gauss-rle RUN-NONINTERACTIVE img glow-layer 12 TRUE TRUE)
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)
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(if (= flatten TRUE)
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(gimp-image-flatten img)
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)
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(gimp-image-undo-enable img)
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(gimp-display-new img)
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(gimp-context-pop)
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)
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)
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(script-fu-register "script-fu-alien-glow-bullet"
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_"_Bullet..."
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_"Create a bullet graphic with an eerie glow 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-ADJUSTMENT _"Radius" '(16 1 100 1 10 0 1)
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SF-COLOR _"Glow color" '(63 252 0)
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SF-COLOR _"Background color" "black"
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SF-TOGGLE _"Flatten image" TRUE
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)
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(script-fu-menu-register "script-fu-alien-glow-bullet"
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"<Image>/File/Create/Web Page Themes/Alien Glow")
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