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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:30:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:30:19 +0000
commit5c1676dfe6d2f3c837a5e074117b45613fd29a72 (patch)
treecbffb45144febf451e54061db2b21395faf94bfe /plug-ins/script-fu/scripts/add-bevel.scm
parentInitial commit. (diff)
downloadgimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.tar.xz
gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.zip
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/plug-ins/script-fu/scripts/add-bevel.scm b/plug-ins/script-fu/scripts/add-bevel.scm
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+; GIMP - The GNU Image Manipulation Program
+; Copyright (C) 1995 Spencer Kimball and Peter Mattis
+;
+; add-bevel.scm version 1.04
+; Time-stamp: <2004-02-09 17:07:06 simon>
+;
+; This program is free software: you can redistribute it and/or modify
+; it under the terms of the GNU General Public License as published by
+; the Free Software Foundation; either version 3 of the License, or
+; (at your option) any later version.
+;
+; This program is distributed in the hope that it will be useful,
+; but WITHOUT ANY WARRANTY; without even the implied warranty of
+; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+; GNU General Public License for more details.
+;
+; You should have received a copy of the GNU General Public License
+; along with this program. If not, see <https://www.gnu.org/licenses/>.
+;
+; Copyright (C) 1997 Andrew Donkin (ard@cs.waikato.ac.nz)
+; Contains code from add-shadow.scm by Sven Neumann
+; (neumanns@uni-duesseldorf.de) (thanks Sven).
+;
+; Adds a bevel to an image. See http://www.cs.waikato.ac.nz/~ard/gimp/
+;
+; If there is a selection, it is bevelled.
+; Otherwise if there is an alpha channel, the selection is taken from it
+; and bevelled.
+; Otherwise the part of the layer inside the image boundaries is bevelled.
+;
+; The selection is set on exit, so Select->Invert then Edit->Clear will
+; leave a cut-out. Then use Sven's add-shadow for that
+; floating-bumpmapped-texture cliche.
+
+;
+; 1.01: now works on offset layers.
+; 1.02: has crop-pixel-border option to trim one pixel off each edge of the
+; bevelled image. Bumpmapping leaves edge pixels unchanged, which
+; looks bad. Oddly, this is not apparent in GIMP - you have to
+; save the image and load it into another viewer. First noticed in
+; Nutscrape.
+; Changed path (removed "filters/").
+; 1.03: adds one-pixel border before bumpmapping, and removes it after.
+; Got rid of the crop-pixel-border option (no longer reqd).
+; 1.04: Fixed undo handling, ensure that bumpmap is big enough,
+; (instead of resizing the image). Removed references to outdated
+; bumpmap plugin. (Simon)
+; 1.05 When there is no selection, bevel the whole layer instead of the
+; whole image (which was broken in the first place).
+; Also fixed some bugs with setting the selection when there is no
+; initial selection. (Barak Itkin)
+;
+
+(define (script-fu-add-bevel img
+ drawable
+ thickness
+ work-on-copy
+ keep-bump-layer)
+
+ (let* (
+ (index 1)
+ (greyness 0)
+ (thickness (abs thickness))
+ (type (car (gimp-drawable-type-with-alpha drawable)))
+ (image (if (= work-on-copy TRUE) (car (gimp-image-duplicate img)) img))
+ (pic-layer (car (gimp-image-get-active-drawable image)))
+ (offsets (gimp-drawable-offsets pic-layer))
+ (width (car (gimp-drawable-width pic-layer)))
+ (height (car (gimp-drawable-height pic-layer)))
+
+ ; Bumpmap has a one pixel border on each side
+ (bump-layer (car (gimp-layer-new image
+ (+ width 2)
+ (+ height 2)
+ RGB-IMAGE
+ _"Bumpmap"
+ 100
+ LAYER-MODE-NORMAL)))
+
+ (selection-exists (car (gimp-selection-bounds image)))
+ (selection 0)
+ )
+
+ (gimp-context-push)
+ (gimp-context-set-defaults)
+
+ ; disable undo on copy, start group otherwise
+ (if (= work-on-copy TRUE)
+ (gimp-image-undo-disable image)
+ (gimp-image-undo-group-start image)
+ )
+
+ (gimp-image-insert-layer image bump-layer 0 1)
+
+ ; If the layer we're bevelling is offset from the image's origin, we
+ ; have to do the same to the bumpmap
+ (gimp-layer-set-offsets bump-layer (- (car offsets) 1)
+ (- (cadr offsets) 1))
+
+ ;------------------------------------------------------------
+ ;
+ ; Set the selection to the area we want to bevel.
+ ;
+ (if (= selection-exists 0)
+ (gimp-image-select-item image CHANNEL-OP-REPLACE pic-layer)
+ )
+
+ ; Store it for later.
+ (set! selection (car (gimp-selection-save image)))
+ ; Try to lose the jaggies
+ (gimp-selection-feather image 2)
+
+ ;------------------------------------------------------------
+ ;
+ ; Initialise our bumpmap
+ ;
+ (gimp-context-set-background '(0 0 0))
+ (gimp-drawable-fill bump-layer FILL-BACKGROUND)
+
+ (while (and (< index thickness)
+ (= (car (gimp-selection-is-empty image)) FALSE)
+ )
+ (set! greyness (/ (* index 255) thickness))
+ (gimp-context-set-background (list greyness greyness greyness))
+ ;(gimp-selection-feather image 1) ;Stop the slopey jaggies?
+ (gimp-drawable-edit-fill bump-layer FILL-BACKGROUND)
+ (gimp-selection-shrink image 1)
+ (set! index (+ index 1))
+ )
+ ; Now the white interior
+ (if (= (car (gimp-selection-is-empty image)) FALSE)
+ (begin
+ (gimp-context-set-background '(255 255 255))
+ (gimp-drawable-edit-fill bump-layer FILL-BACKGROUND)
+ )
+ )
+
+ ;------------------------------------------------------------
+ ;
+ ; Do the bump.
+ ;
+ (gimp-selection-none image)
+
+ ; To further lessen jaggies?
+ ;(plug-in-gauss-rle RUN-NONINTERACTIVE image bump-layer thickness TRUE TRUE)
+
+
+ ;
+ ; BUMPMAP INVOCATION:
+ ;
+ (plug-in-bump-map RUN-NONINTERACTIVE image pic-layer bump-layer 125 45 3 0 0 0 0 TRUE FALSE 1)
+
+ ;------------------------------------------------------------
+ ;
+ ; Restore things
+ ;
+ (if (= selection-exists 0)
+ (gimp-selection-none image) ; No selection to start with
+ (gimp-image-select-item image CHANNEL-OP-REPLACE selection)
+ )
+ ; If they started with a selection, they can Select->Invert then
+ ; Edit->Clear for a cutout.
+
+ ; clean up
+ (gimp-image-remove-channel image selection)
+ (if (= keep-bump-layer TRUE)
+ (gimp-item-set-visible bump-layer 0)
+ (gimp-image-remove-layer image bump-layer)
+ )
+
+ (gimp-image-set-active-layer image pic-layer)
+
+ ; enable undo / end undo group
+ (if (= work-on-copy TRUE)
+ (begin
+ (gimp-display-new image)
+ (gimp-image-undo-enable image)
+ )
+ (gimp-image-undo-group-end image)
+ )
+
+ (gimp-displays-flush)
+
+ (gimp-context-pop)
+ )
+)
+
+(script-fu-register "script-fu-add-bevel"
+ _"Add B_evel..."
+ _"Add a beveled border to an image"
+ "Andrew Donkin <ard@cs.waikato.ac.nz>"
+ "Andrew Donkin"
+ "1997/11/06"
+ "RGB*"
+ SF-IMAGE "Image" 0
+ SF-DRAWABLE "Drawable" 0
+ SF-ADJUSTMENT _"Thickness" '(5 0 30 1 2 0 0)
+ SF-TOGGLE _"Work on copy" TRUE
+ SF-TOGGLE _"Keep bump layer" FALSE
+)
+
+(script-fu-menu-register "script-fu-add-bevel" "<Image>/Filters/Decor")