114 lines
4.4 KiB
Scheme
114 lines
4.4 KiB
Scheme
; CHROME-LOGOS
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(define (apply-chrome-logo-effect img
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logo-layer
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offsets
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bg-color)
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(let* ((offx1 (* offsets 0.4))
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(offy1 (* offsets 0.3))
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(offx2 (* offsets (- 0.4)))
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(offy2 (* offsets (- 0.3)))
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(feather (* offsets 0.5))
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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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(layer1 (car (gimp-layer-new img width height RGBA_IMAGE "Layer 1" 100 DIFFERENCE)))
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(layer2 (car (gimp-layer-new img width height RGBA_IMAGE "Layer 2" 100 DIFFERENCE)))
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(layer3 (car (gimp-layer-new img width height RGBA_IMAGE "Layer 3" 100 NORMAL)))
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(shadow (car (gimp-layer-new img width height RGBA_IMAGE "Drop Shadow" 100 NORMAL)))
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(background (car (gimp-layer-new img width height RGB_IMAGE "Background" 100 NORMAL)))
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(layer-mask (car (gimp-layer-create-mask layer1 BLACK-MASK)))
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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 background 1)
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(gimp-image-add-layer img shadow 1)
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(gimp-image-add-layer img layer3 1)
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(gimp-image-add-layer img layer2 1)
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(gimp-image-add-layer img layer1 1)
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(gimp-palette-set-background '(255 255 255))
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(gimp-selection-none img)
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(gimp-edit-fill layer1 BG-IMAGE-FILL)
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(gimp-edit-fill layer2 BG-IMAGE-FILL)
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(gimp-edit-fill layer3 BG-IMAGE-FILL)
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(gimp-edit-clear shadow)
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(gimp-selection-layer-alpha logo-layer)
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(gimp-layer-set-visible logo-layer FALSE)
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(gimp-layer-set-visible shadow FALSE)
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(gimp-layer-set-visible background FALSE)
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(gimp-palette-set-background '(0 0 0))
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(gimp-edit-fill layer1 BG-IMAGE-FILL)
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(gimp-selection-translate img offx1 offy1)
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(gimp-selection-feather img feather)
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(gimp-edit-fill layer2 BG-IMAGE-FILL)
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(gimp-selection-translate img (* 2 offx2) (* 2 offy2))
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(gimp-edit-fill layer3 BG-IMAGE-FILL)
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(gimp-selection-none img)
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(set! layer1 (car (gimp-image-merge-visible-layers img CLIP-TO-IMAGE)))
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(gimp-invert layer1)
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(gimp-image-add-layer-mask img layer1 layer-mask)
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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-selection-feather img feather)
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(gimp-edit-fill layer-mask BG-IMAGE-FILL)
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(gimp-palette-set-background '(0 0 0))
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(gimp-selection-translate img offx1 offy1)
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(gimp-edit-fill shadow BG-IMAGE-FILL)
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(gimp-selection-none img)
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(gimp-palette-set-background bg-color)
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(gimp-edit-fill background BG-IMAGE-FILL)
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(gimp-layer-set-visible shadow TRUE)
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(gimp-layer-set-visible background TRUE)
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(gimp-layer-set-name layer1 (car (gimp-layer-get-name logo-layer)))
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(gimp-image-remove-layer img logo-layer)
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(gimp-palette-set-foreground old-fg)
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(gimp-palette-set-background old-bg)))
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(define (script-fu-chrome-logo-alpha img
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logo-layer
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offsets
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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-chrome-logo-effect img logo-layer offsets 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-chrome-logo-alpha"
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_"<Image>/Script-Fu/Alpha to Logo/Chrome..."
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"Somewhat simplistic, but cool chromed logos"
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"Spencer Kimball"
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"Spencer Kimball & Peter Mattis"
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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 _"Offsets (pixels * 2)" '(10 2 100 1 10 0 1)
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SF-COLOR _"Background Color" '(191 191 191)
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)
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(define (script-fu-chrome-logo text
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size
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font
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bg-color)
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(let* ((img (car (gimp-image-new 256 256 RGB)))
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(b-size (* size 0.2))
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(text-layer (car (gimp-text-fontname img -1 0 0 text b-size TRUE size PIXELS font))))
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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-chrome-logo-effect img text-layer (* size 0.1) 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-chrome-logo"
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_"<Toolbox>/Xtns/Script-Fu/Logos/Chrome..."
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"Somewhat simplistic, but cool chromed logos"
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"Spencer Kimball"
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"Spencer Kimball & Peter Mattis"
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"1997"
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""
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SF-STRING _"Text" "The GIMP"
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SF-ADJUSTMENT _"Font Size (pixels)" '(100 2 1000 1 10 0 1)
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SF-FONT _"Font" "-*-Bodoni-*-r-*-*-24-*-*-*-p-*-*-*"
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SF-COLOR _"Background Color" '(191 191 191)
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)
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