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- ; The GIMP -- an image manipulation program
- ; Copyright (C) 1995 Spencer Kimball and Peter Mattis
- ;
- ; Alien Glow themed bullets for web pages
- ; Copyright (c) 1997 Adrian Likins
- ; aklikins@eos.ncsu.edu
- ;
- ; 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.
- ;
- ; You should have received a copy of the GNU General Public License
- ; along with this program; if not, write to the Free Software
- ; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- (define (center-ellipse img
- cx
- cy
- rx
- ry
- op
- aa
- feather
- frad)
- (gimp-ellipse-select img (- cx rx) (- cy ry) (+ rx rx) (+ ry ry)
- op aa feather frad))
-
-
- (define (script-fu-alien-glow-bullet radius
- glow-color
- bg-color
- flatten)
- (let* ((img (car (gimp-image-new radius radius RGB)))
- (border (/ radius 4))
- (diameter (* radius 2))
- (half-radius (/ radius 2))
- (blend-start (+ half-radius (/ half-radius 2)))
- (bullet-layer (car (gimp-layer-new img
- diameter diameter RGBA-IMAGE
- "Ruler" 100 NORMAL-MODE)))
- (glow-layer (car (gimp-layer-new img diameter diameter RGBA-IMAGE
- "ALien Glow" 100 NORMAL-MODE)))
- (bg-layer (car (gimp-layer-new img diameter diameter RGB-IMAGE
- "Background" 100 NORMAL-MODE))))
-
- (gimp-context-push)
-
- (gimp-image-undo-disable img)
- (gimp-image-resize img diameter diameter 0 0)
- (gimp-image-add-layer img bg-layer 1)
- (gimp-image-add-layer img glow-layer -1)
- (gimp-image-add-layer img bullet-layer -1)
-
- ; (gimp-layer-set-preserve-trans ruler-layer TRUE)
- (gimp-context-set-background bg-color)
- (gimp-edit-fill bg-layer BACKGROUND-FILL)
- (gimp-edit-clear glow-layer)
- (gimp-edit-clear bullet-layer)
-
- (center-ellipse img radius radius half-radius half-radius
- CHANNEL-OP-REPLACE TRUE FALSE 0)
-
- ; (gimp-rect-select img (/ height 2) (/ height 2) length height CHANNEL-OP-REPLACE FALSE 0)
- (gimp-context-set-foreground '(90 90 90))
- (gimp-context-set-background '(0 0 0))
-
- (gimp-edit-blend bullet-layer FG-BG-RGB-MODE NORMAL-MODE
- GRADIENT-RADIAL 100 0 REPEAT-NONE FALSE
- FALSE 0 0 TRUE
- blend-start blend-start
- (+ half-radius radius) (+ half-radius radius))
-
- (gimp-context-set-foreground glow-color)
- (gimp-selection-grow img border)
- (gimp-selection-feather img border)
- (gimp-edit-fill glow-layer FOREGROUND-FILL)
- (gimp-selection-none img)
- (if (>= radius 16)
- (plug-in-gauss-rle 1 img glow-layer 25 TRUE TRUE)
- (plug-in-gauss-rle 1 img glow-layer 12 TRUE TRUE))
-
- (if (= flatten TRUE)
- (gimp-image-flatten img))
- (gimp-image-undo-enable img)
- (gimp-display-new img)
-
- (gimp-context-pop)))
-
- (script-fu-register "script-fu-alien-glow-bullet"
- _"_Bullet..."
- "Create a Bullet with an Alien Glow theme for web pages"
- "Adrian Likins"
- "Adrian Likins"
- "1997"
- ""
- SF-ADJUSTMENT _"Radius" '(16 1 100 1 10 0 1)
- SF-COLOR _"Glow color" '(63 252 0)
- SF-COLOR _"Background color" '(0 0 0)
- SF-TOGGLE _"Flatten image" TRUE)
-
- (script-fu-menu-register "script-fu-alien-glow-bullet"
- _"<Toolbox>/Xtns/Script-Fu/Web Page Themes/Alien Glow")
-