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+; Chris Gutteridge (cjg@ecs.soton.ac.uk)
+; At ECS Dept, University of Southampton, England.
+
+; 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/>.
+
+
+(define (script-fu-tile-blur inImage inLayer inRadius inVert inHoriz inType)
+
+ (let* (
+ (theImage inImage)
+ (theLayer inLayer)
+ (theHeight (car (gimp-drawable-height theLayer)))
+ (theWidth (car (gimp-drawable-width theLayer)))
+ )
+
+ (define (pasteat xoff yoff)
+ (let ((theFloat (car(gimp-edit-paste theLayer 0))))
+ (gimp-layer-set-offsets theFloat (* xoff theWidth) (* yoff theHeight) )
+ (gimp-floating-sel-anchor theFloat)
+ )
+ )
+
+ (gimp-context-push)
+ (gimp-context-set-feather FALSE)
+ (gimp-image-undo-group-start theImage)
+
+ (gimp-layer-resize theLayer (* 3 theWidth) (* 3 theHeight) 0 0)
+
+ (gimp-image-select-rectangle theImage CHANNEL-OP-REPLACE 0 0 theWidth theHeight)
+ (gimp-edit-cut theLayer)
+
+ (gimp-selection-none theImage)
+ (gimp-layer-set-offsets theLayer theWidth theHeight)
+
+ (pasteat 1 1) (pasteat 1 2) (pasteat 1 3)
+ (pasteat 2 1) (pasteat 2 2) (pasteat 2 3)
+ (pasteat 3 1) (pasteat 3 2) (pasteat 3 3)
+
+ (gimp-selection-none theImage)
+ (if (= inType 0)
+ (plug-in-gauss-iir RUN-NONINTERACTIVE
+ theImage theLayer inRadius inHoriz inVert)
+ (plug-in-gauss-rle RUN-NONINTERACTIVE
+ theImage theLayer inRadius inHoriz inVert)
+ )
+
+ (gimp-layer-resize theLayer
+ theWidth theHeight (- 0 theWidth) (- 0 theHeight))
+ (gimp-layer-set-offsets theLayer 0 0)
+ (gimp-image-undo-group-end theImage)
+ (gimp-displays-flush)
+ (gimp-context-pop)
+ )
+)
+
+(script-fu-register "script-fu-tile-blur"
+ _"_Tileable Blur..."
+ _"Blur the edges of an image so the result tiles seamlessly"
+ "Chris Gutteridge"
+ "1998, Chris Gutteridge / ECS dept, University of Southampton, England."
+ "25th April 1998"
+ "RGB*"
+ SF-IMAGE "The Image" 0
+ SF-DRAWABLE "The Layer" 0
+ SF-ADJUSTMENT _"Radius" '(5 0 128 1 1 0 0)
+ SF-TOGGLE _"Blur vertically" TRUE
+ SF-TOGGLE _"Blur horizontally" TRUE
+ SF-OPTION _"Blur type" '(_"IIR" _"RLE")
+)
+
+(script-fu-menu-register "script-fu-tile-blur"
+ "<Image>/Filters/Blur")