Why: in v3 the signature for gimp-edit-foo PDB procedures changed to support multilayer selection. This finishes the task for ScriptFu scripts in the GIMP repo. This is not a complete list, since some calls were changed incidentally by prior commits. You can grep for "edit-copy" etc. in script-fu/scripts to find instances. This also makes incidental changes, to script calls to plug-in-tile, which now also has a changed signature to support multilayer. The changes are simple code transformations. The changes to gimp-edit-paste calls are more complex, a mixed bag of a few lines transformed to more lines. I did not try to understand the larger logic of the changed plugins. I did not test the changed plugins functionally. I used a harness to call each changed plugin with improvised parameters, only checking that the test plugin did not throw runtime errors, not checking that they produced correct images. As noted in the issue, this might be undone if the original signatures for gimp-edit-foo are restored as convenience functions.
143 lines
5 KiB
Scheme
143 lines
5 KiB
Scheme
; GIMP - The GNU Image Manipulation Program
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; Copyright (C) 1995 Spencer Kimball and Peter Mattis
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;
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; Predator effect
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; Copyright (c) 1997 Adrian Likins
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; aklikins@eos.ncsu.ed
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;
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; The idea here is too make the image/selection look sort of like
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; the view the predator had in the movies. ie, kind of a thermogram
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; type of thing. Works best on colorful rgb images.
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;
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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-predator image
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drawable
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edge-amount
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pixelize
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pixel-size
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keep-selection
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separate-layer)
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(let* (
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(type (car (gimp-drawable-type-with-alpha drawable)))
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(image-width (car (gimp-image-get-width image)))
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(image-height (car (gimp-image-get-height image)))
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(active-selection 0)
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(from-selection 0)
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(selection-bounds 0)
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(select-offset-x 0)
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(select-offset-y 0)
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(select-width 0)
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(select-height 0)
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(effect-layer 0)
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(active-layer 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 image)
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(gimp-layer-add-alpha drawable)
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(if (= (car (gimp-selection-is-empty image)) TRUE)
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(begin
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(gimp-image-select-item image CHANNEL-OP-REPLACE drawable)
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(set! active-selection (car (gimp-selection-save image)))
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(set! from-selection FALSE)
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)
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(begin
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(set! from-selection TRUE)
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(set! active-selection (car (gimp-selection-save image)))
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)
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)
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(set! selection-bounds (gimp-selection-bounds image))
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(set! select-offset-x (cadr selection-bounds))
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(set! select-offset-y (caddr selection-bounds))
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(set! select-width (- (cadr (cddr selection-bounds)) select-offset-x))
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(set! select-height (- (caddr (cddr selection-bounds)) select-offset-y))
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(if (= separate-layer TRUE)
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(begin
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(set! effect-layer (car (gimp-layer-new image
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select-width
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select-height
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type
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"glow layer"
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100
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LAYER-MODE-NORMAL))
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)
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(gimp-layer-set-offsets effect-layer select-offset-x select-offset-y)
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(gimp-image-insert-layer image effect-layer 0 -1)
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(gimp-selection-none image)
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(gimp-drawable-edit-clear effect-layer)
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(gimp-image-select-item image CHANNEL-OP-REPLACE active-selection)
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(gimp-edit-copy 1 (vector drawable))
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(let* (
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(pasted (gimp-edit-paste effect-layer FALSE))
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(num-pasted (car pasted))
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(floating-sel (aref (cadr pasted) (- num-pasted 1)))
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)
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(gimp-floating-sel-anchor floating-sel)
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)
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(gimp-image-set-active-layer image effect-layer)
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)
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(set! effect-layer drawable)
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)
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(set! active-layer effect-layer)
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; all the fun stuff goes here
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(if (= pixelize TRUE)
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(plug-in-pixelize RUN-NONINTERACTIVE image active-layer pixel-size)
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)
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(plug-in-max-rgb RUN-NONINTERACTIVE image active-layer 0)
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(plug-in-edge RUN-NONINTERACTIVE image active-layer edge-amount 1 0)
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; clean up the selection copy
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(gimp-image-select-item image CHANNEL-OP-REPLACE active-selection)
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(if (= keep-selection FALSE)
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(gimp-selection-none image)
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)
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(gimp-image-set-active-layer image drawable)
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(gimp-image-remove-channel image active-selection)
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(gimp-image-undo-group-end image)
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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 "script-fu-predator"
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_"_Predator..."
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_"Add a 'Predator' effect to the selected region (or alpha)"
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"Adrian Likins <adrian@gimp.org>"
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"Adrian Likins"
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"10/12/97"
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"RGB*"
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SF-IMAGE "Image" 0
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SF-DRAWABLE "Drawable" 0
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SF-ADJUSTMENT _"Edge amount" '(2 0 24 1 1 0 0)
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SF-TOGGLE _"Pixelize" TRUE
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SF-ADJUSTMENT _"Pixel amount" '(3 1 16 1 1 0 0)
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SF-TOGGLE _"Keep selection" TRUE
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SF-TOGGLE _"Separate layer" TRUE
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)
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(script-fu-menu-register "script-fu-predator"
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"<Image>/Filters/Artistic")
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