117 lines
4.1 KiB
Scheme
117 lines
4.1 KiB
Scheme
; Starburst
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; Effect courtesy Xach Beane's web page
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(define (apply-starburst-logo-effect img
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logo-layer
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size
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burst-color
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bg-color)
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(let* ((off (* size 0.03))
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(count -1)
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(feather (* size 0.04))
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(border (+ feather off))
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(width (car (gimp-drawable-width logo-layer)))
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(height (car (gimp-drawable-height logo-layer)))
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(burst-coords (cons (* width 0.5) (* height 0.5)))
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(burstradius (* (min height width) 0.35))
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(bg-layer (car (gimp-layer-new img width height RGB_IMAGE "Background" 100 NORMAL)))
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(shadow-layer (car (gimp-layer-new img width height RGBA_IMAGE "Shadow" 100 NORMAL)))
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(burst-layer (car (gimp-layer-new img width height RGBA_IMAGE "Burst" 100 NORMAL)))
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(layer-mask (car (gimp-layer-create-mask burst-layer BLACK-MASK)))
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(old-pattern (car (gimp-patterns-get-pattern)))
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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-resize img width height 0 0)
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(gimp-image-add-layer img bg-layer 1)
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(gimp-image-add-layer img shadow-layer 1)
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(gimp-image-add-layer img burst-layer 0)
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(gimp-image-add-layer-mask img burst-layer layer-mask)
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(gimp-layer-set-preserve-trans logo-layer TRUE)
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(gimp-palette-set-background bg-color)
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(gimp-edit-fill bg-layer BG-IMAGE-FILL)
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(gimp-edit-clear shadow-layer)
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(gimp-edit-clear burst-layer)
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(gimp-selection-all img)
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(gimp-patterns-set-pattern "Crack")
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(gimp-bucket-fill logo-layer PATTERN-BUCKET-FILL NORMAL 100 0 FALSE 0 0)
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(gimp-selection-none img)
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(gimp-selection-layer-alpha logo-layer)
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(gimp-palette-set-background '(255 255 255))
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(gimp-edit-fill layer-mask BG-IMAGE-FILL)
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(gimp-selection-none img)
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(plug-in-nova 1 img burst-layer (car burst-coords) (cdr burst-coords)
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burst-color burstradius 100 0)
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(gimp-selection-layer-alpha logo-layer)
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(gimp-palette-set-background '(0 0 0))
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(gimp-selection-feather img feather)
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(gimp-selection-translate img -1 -1)
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(while (< count off)
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(gimp-edit-fill shadow-layer BG-IMAGE-FILL)
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(gimp-selection-translate img 1 1)
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(set! count (+ count 1)))
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(gimp-selection-none img)
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(gimp-patterns-set-pattern old-pattern)
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(gimp-palette-set-background old-bg)
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(gimp-palette-set-foreground old-fg)))
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(define (script-fu-starburst-logo-alpha img
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logo-layer
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size
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burst-color
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bg-color)
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(begin
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(gimp-undo-push-group-start img)
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(apply-starburst-logo-effect img logo-layer size burst-color bg-color)
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(gimp-undo-push-group-end img)
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(gimp-displays-flush)))
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(script-fu-register "script-fu-starburst-logo-alpha"
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_"<Image>/Script-Fu/Alpha to Logo/Starburst..."
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"Starburst as inspired by GIMP News"
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"Spencer Kimball & Xach Beane"
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"Spencer Kimball & Xach Beane"
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"1997"
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"RGBA"
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SF-IMAGE "Image" 0
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SF-DRAWABLE "Drawable" 0
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SF-ADJUSTMENT _"Effect Size (pixels * 30)" '(150 0 512 1 10 0 1)
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SF-COLOR _"Burst Color" '(60 196 33)
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SF-COLOR _"Background Color" '(255 255 255)
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)
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(define (script-fu-starburst-logo text size fontname burst-color bg-color)
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(let* ((img (car (gimp-image-new 256 256 RGB)))
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(off (* size 0.03))
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(feather (* size 0.04))
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(border (+ feather off))
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(text-layer (car (gimp-text-fontname img -1 0 0 text border TRUE size PIXELS fontname))))
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(gimp-image-undo-disable img)
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(gimp-layer-set-name text-layer text)
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(apply-starburst-logo-effect img text-layer size burst-color bg-color)
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(gimp-image-undo-enable img)
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(gimp-display-new img)))
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(script-fu-register "script-fu-starburst-logo"
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_"<Toolbox>/Xtns/Script-Fu/Logos/Starburst..."
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"Starburst as inspired by GIMP News"
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"Spencer Kimball & Xach Beane"
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"Spencer Kimball & Xach Beane"
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"1997"
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""
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SF-STRING _"Text" "GIMP"
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SF-ADJUSTMENT _"Font Size (pixels)" '(150 0 512 1 10 0 1)
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SF-FONT _"Font" "-*-blippo-*-r-*-*-24-*-*-*-p-*-*-*"
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SF-COLOR _"Burst Color" '(60 196 33)
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SF-COLOR _"Background Color" '(255 255 255)
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)
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