45f56ce44c
Fix it by also enhancing, making the gradient an argument with a default instead of a fixed choice of the gradient named "Coffee". Instead of fixing by looking up the gradient ID in the body of the script.
104 lines
3.4 KiB
Scheme
104 lines
3.4 KiB
Scheme
; Chris Gutteridge (cjg@ecs.soton.ac.uk)
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; At ECS Dept, University of Southampton, England.
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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 <https://www.gnu.org/licenses/>.
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(define (script-fu-coffee-stain inImage inLayer inNumber inDark inGradient)
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(let* (
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(theImage inImage)
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(theHeight (car (gimp-image-get-height theImage)))
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(theWidth (car (gimp-image-get-width theImage)))
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(theNumber inNumber)
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(theSize (min theWidth theHeight))
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(theStain 0)
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(theSpread 0)
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)
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(gimp-context-push)
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(gimp-context-set-defaults)
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(gimp-image-undo-group-start theImage)
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(while (> theNumber 0)
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(set! theNumber (- theNumber 1))
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(set! theStain (car (gimp-layer-new theImage theSize theSize
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RGBA-IMAGE _"Stain" 100
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(if (= inDark TRUE)
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LAYER-MODE-DARKEN-ONLY LAYER-MODE-NORMAL))))
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(gimp-image-insert-layer theImage theStain 0 0)
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(gimp-selection-all theImage)
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(gimp-drawable-edit-clear theStain)
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(let ((blobSize (/ (rand (- theSize 40)) (+ (rand 3) 1))))
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(if (< blobSize 32) (set! blobSize 32))
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(gimp-image-select-ellipse theImage
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CHANNEL-OP-REPLACE
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(/ (- theSize blobSize) 2)
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(/ (- theSize blobSize) 2)
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blobSize blobSize)
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)
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; clamp the spread value to the 'plug-in-spread' limits
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(set! theSpread (/ theSize 25))
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(if (> theSpread 200) (set! theSpread 200))
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(script-fu-distress-selection theImage theStain
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(- (* (+ (rand 15) 1) (+ (rand 15) 1)) 1)
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theSpread 4 2 TRUE TRUE)
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(gimp-context-set-gradient inGradient)
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; only fill if there is a selection
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(if (> (car (gimp-selection-bounds theImage)) 0)
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(gimp-drawable-edit-gradient-fill theStain
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GRADIENT-SHAPEBURST-DIMPLED 0
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FALSE 1 0
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TRUE
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0 0 0 0)
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)
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(gimp-layer-set-offsets theStain
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(- (rand theWidth) (/ theSize 2))
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(- (rand theHeight) (/ theSize 2)))
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)
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(gimp-selection-none theImage)
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(gimp-image-undo-group-end theImage)
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(gimp-displays-flush)
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(gimp-context-pop)
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)
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)
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; Register the function with GIMP:
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(script-fu-register "script-fu-coffee-stain"
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_"_Coffee Stain..."
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_"Add realistic looking coffee stains to the image"
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"Chris Gutteridge"
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"1998, Chris Gutteridge / ECS dept, University of Southampton, England."
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"25th April 1998"
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"RGB*"
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SF-IMAGE "The image" 0
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SF-DRAWABLE "The layer" 0
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SF-ADJUSTMENT _"Stains" '(3 1 10 1 2 0 0)
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SF-TOGGLE _"Darken only" TRUE
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SF-GRADIENT _"Gradient" "Coffee"
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)
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(script-fu-menu-register "script-fu-coffee-stain" "<Image>/Filters/Decor")
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