957d76fd14
Not sure what I had in mind with the class method copy() in libgimp GimpLayer. The core duplicate code already takes care of returning an object of the right type. Also the GimpTextLayer implementation was not a perfect copy (only text, font and font size were copied). Now it is because, again, core has all the duplication code necessary. Finally this makes this function visible to PDB, hence Script-Fu, again.
158 lines
5.7 KiB
Scheme
158 lines
5.7 KiB
Scheme
;
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; fuzzy-border
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;
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; Do a cool fade to a given color at the border of an image (optional shadow)
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; Will make image RGB if it isn't already.
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;
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; 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 the function:
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(define (script-fu-fuzzy-border inImage
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inLayers
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inColor
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inSize
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inBlur
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inGranu
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inShadow
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inShadWeight
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inCopy
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inFlatten
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)
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(define (chris-color-edge inImage inLayer inColor inSize)
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(gimp-selection-all inImage)
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(gimp-selection-shrink inImage inSize)
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(gimp-selection-invert inImage)
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(gimp-context-set-background inColor)
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(gimp-drawable-edit-fill inLayer FILL-BACKGROUND)
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(gimp-selection-none inImage)
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)
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(let (
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(theWidth (car (gimp-image-get-width inImage)))
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(theHeight (car (gimp-image-get-height inImage)))
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(theImage (if (= inCopy TRUE) (car (gimp-image-duplicate inImage))
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inImage))
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(inLayer (vector-ref inLayers 0))
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(theLayer 0)
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)
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(gimp-context-push)
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(gimp-context-set-defaults)
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(if (= inCopy TRUE)
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(gimp-image-undo-disable theImage)
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(gimp-image-undo-group-start theImage)
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)
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(gimp-selection-all theImage)
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(if (> (car (gimp-drawable-type inLayer)) 1)
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(gimp-image-convert-rgb theImage)
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)
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(set! theLayer (car (gimp-layer-new theImage
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"layer 1"
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theWidth
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theHeight
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RGBA-IMAGE
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100
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LAYER-MODE-NORMAL)))
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(gimp-image-insert-layer theImage theLayer 0 0)
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(gimp-drawable-edit-clear theLayer)
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(chris-color-edge theImage theLayer inColor inSize)
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(gimp-layer-scale theLayer
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(/ theWidth inGranu)
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(/ theHeight inGranu)
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TRUE)
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(gimp-drawable-merge-new-filter theLayer "gegl:noise-spread" 0 LAYER-MODE-REPLACE 1.0 "amount-x" (/ inSize inGranu) "amount-y" (/ inSize inGranu) "seed" (msrg-rand))
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(chris-color-edge theImage theLayer inColor 1)
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(gimp-layer-scale theLayer theWidth theHeight TRUE)
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(gimp-image-select-item theImage CHANNEL-OP-REPLACE theLayer)
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(gimp-selection-invert theImage)
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(gimp-drawable-edit-clear theLayer)
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(gimp-selection-invert theImage)
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(gimp-drawable-edit-clear theLayer)
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(gimp-context-set-background inColor)
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(gimp-drawable-edit-fill theLayer FILL-BACKGROUND)
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(gimp-selection-none theImage)
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(chris-color-edge theImage theLayer inColor 1)
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(if (= inBlur TRUE)
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(gimp-drawable-merge-new-filter theLayer "gegl:gaussian-blur" 0 LAYER-MODE-REPLACE 1.0 "std-dev-x" (* 0.32 inSize) "std-dev-y" (* 0.32 inSize) "filter" "auto")
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)
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(if (= inShadow TRUE)
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(begin
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(gimp-image-insert-layer theImage
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(car (gimp-layer-copy theLayer)) 0 -1)
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(gimp-layer-scale theLayer
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(- theWidth inSize) (- theHeight inSize) TRUE)
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(gimp-drawable-desaturate theLayer DESATURATE-LIGHTNESS)
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(gimp-drawable-brightness-contrast theLayer 0.5 0.5)
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(gimp-drawable-invert theLayer FALSE)
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(gimp-layer-resize theLayer
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theWidth
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theHeight
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(/ inSize 2)
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(/ inSize 2))
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(gimp-drawable-merge-new-filter theLayer "gegl:gaussian-blur" 0 LAYER-MODE-REPLACE 1.0 "std-dev-x" (* 0.32 (/ inSize 2)) "std-dev-y" (* 0.32 (/ inSize 2)) "filter" "auto")
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(gimp-layer-set-opacity theLayer inShadWeight)
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)
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)
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(if (= inFlatten TRUE)
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(gimp-image-flatten theImage)
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)
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(if (= inCopy TRUE)
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(begin (gimp-image-clean-all theImage)
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(gimp-display-new theImage)
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(gimp-image-undo-enable theImage)
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)
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(gimp-image-undo-group-end theImage)
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)
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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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(script-fu-register-filter "script-fu-fuzzy-border"
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_"_Fuzzy Border..."
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_"Add a jagged, fuzzy border to an image"
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"Chris Gutteridge"
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"1998, Chris Gutteridge / ECS dept, University of Southampton, England."
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"3rd April 1998"
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"RGB* GRAY*"
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SF-ONE-OR-MORE-DRAWABLE
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SF-COLOR _"Color" "white"
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SF-ADJUSTMENT _"Border size" '(16 1 300 1 10 0 1)
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SF-TOGGLE _"Blur border" TRUE
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SF-ADJUSTMENT _"Granularity (1 is Low)" '(4 1 16 0.25 5 2 0)
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SF-TOGGLE _"Add shadow" FALSE
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SF-ADJUSTMENT _"Shadow weight (%)" '(100 0 100 1 10 0 0)
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SF-TOGGLE _"Work on copy" TRUE
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SF-TOGGLE _"Flatten image" TRUE
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)
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(script-fu-menu-register "script-fu-fuzzy-border"
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"<Image>/Filters/Decor")
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