f8004c8167
Add Border enlarges an image by twice the specified border size and creates the border in this additional space. If an image already has the intended final size, this behaviour is not desired. This change adds a toggle to (dis)allow resizing, similar to the drop shadow script. This came up in a reddit thread by /u/rapidexchange https://www.reddit.com/r/GIMP/comments/6csofx/im_new_to_gimp_so_sorry_if_this_is_a_stupid/
194 lines
6.9 KiB
Scheme
194 lines
6.9 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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; 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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;
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; Copyright (C) 1997 Andy Thomas alt@picnic.demon.co.uk
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;
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; Version 0.2 10.6.97 Changed to new script-fu interface in 0.99.10
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; Delta the color by the given amount. Check for boundary conditions
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; If < 0 set to zero
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; If > 255 set to 255
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; Return the new value
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(define (script-fu-addborder aimg adraw xsize ysize color dvalue allow-resize)
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(define (deltacolor col delta)
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(let* ((newcol (+ col delta)))
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(if (< newcol 0) (set! newcol 0))
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(if (> newcol 255) (set! newcol 255))
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newcol
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)
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)
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(define (adjcolor col delta)
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(mapcar (lambda (x) (deltacolor x delta)) col)
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)
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(define (gen_top_array xsize ysize owidth oheight width height)
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(let* ((n_array (cons-array 10 'double)))
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(aset n_array 0 0 )
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(aset n_array 1 0 )
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(aset n_array 2 xsize)
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(aset n_array 3 ysize)
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(aset n_array 4 (+ xsize owidth))
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(aset n_array 5 ysize)
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(aset n_array 6 width)
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(aset n_array 7 0 )
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(aset n_array 8 0 )
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(aset n_array 9 0 )
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n_array)
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)
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(define (gen_left_array xsize ysize owidth oheight width height)
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(let* ((n_array (cons-array 10 'double)))
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(aset n_array 0 0 )
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(aset n_array 1 0 )
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(aset n_array 2 xsize)
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(aset n_array 3 ysize)
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(aset n_array 4 xsize)
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(aset n_array 5 (+ ysize oheight))
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(aset n_array 6 0 )
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(aset n_array 7 height )
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(aset n_array 8 0 )
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(aset n_array 9 0 )
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n_array)
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)
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(define (gen_right_array xsize ysize owidth oheight width height)
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(let* ((n_array (cons-array 10 'double)))
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(aset n_array 0 width )
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(aset n_array 1 0 )
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(aset n_array 2 (+ xsize owidth))
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(aset n_array 3 ysize)
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(aset n_array 4 (+ xsize owidth))
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(aset n_array 5 (+ ysize oheight))
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(aset n_array 6 width)
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(aset n_array 7 height)
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(aset n_array 8 width )
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(aset n_array 9 0 )
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n_array)
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)
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(define (gen_bottom_array xsize ysize owidth oheight width height)
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(let* ((n_array (cons-array 10 'double)))
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(aset n_array 0 0 )
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(aset n_array 1 height)
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(aset n_array 2 xsize)
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(aset n_array 3 (+ ysize oheight))
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(aset n_array 4 (+ xsize owidth))
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(aset n_array 5 (+ ysize oheight))
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(aset n_array 6 width)
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(aset n_array 7 height)
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(aset n_array 8 0 )
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(aset n_array 9 height)
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n_array)
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)
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(let* ((img (car (gimp-item-get-image adraw)))
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(imagewidth (car (gimp-image-get-width img)))
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(imageheight (car (gimp-image-get-height img)))
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(innerwidth 0)
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(innerheight 0)
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(outerwidth 0)
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(outerheight 0))
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(if (= allow-resize TRUE)
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(begin
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(set! outerwidth (+ imagewidth (* 2 xsize)))
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(set! outerheight (+ imageheight (* 2 ysize)))
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(set! innerwidth imagewidth)
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(set! innerheight imageheight))
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(begin
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(set! outerwidth imagewidth)
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(set! outerheight imageheight)
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(set! innerwidth (- imagewidth (* 2 xsize)))
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(set! innerheight (- imageheight (* 2 ysize)))))
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(let* ((layer (car (gimp-layer-new img
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outerwidth outerheight
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(car (gimp-drawable-type-with-alpha adraw))
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_"Border Layer" 100 LAYER-MODE-NORMAL))))
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(gimp-context-push)
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(gimp-context-set-antialias FALSE)
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(gimp-context-set-feather FALSE)
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(gimp-image-undo-group-start img)
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(if (= allow-resize TRUE)
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(gimp-image-resize img
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outerwidth
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outerheight
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xsize
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ysize))
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(gimp-image-insert-layer img layer 0 0)
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(gimp-drawable-fill layer FILL-TRANSPARENT)
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(gimp-context-set-background (adjcolor color dvalue))
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(gimp-image-select-polygon img
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CHANNEL-OP-REPLACE
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10
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(gen_top_array xsize ysize innerwidth innerheight outerwidth outerheight))
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(gimp-drawable-edit-fill layer FILL-BACKGROUND)
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(gimp-context-set-background (adjcolor color (/ dvalue 2)))
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(gimp-image-select-polygon img
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CHANNEL-OP-REPLACE
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10
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(gen_left_array xsize ysize innerwidth innerheight outerwidth outerheight))
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(gimp-drawable-edit-fill layer FILL-BACKGROUND)
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(gimp-context-set-background (adjcolor color (- 0 (/ dvalue 2))))
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(gimp-image-select-polygon img
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CHANNEL-OP-REPLACE
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10
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(gen_right_array xsize ysize innerwidth innerheight outerwidth outerheight))
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(gimp-drawable-edit-fill layer FILL-BACKGROUND)
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(gimp-context-set-background (adjcolor color (- 0 dvalue)))
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(gimp-image-select-polygon img
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CHANNEL-OP-REPLACE
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10
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(gen_bottom_array xsize ysize innerwidth innerheight outerwidth outerheight))
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(gimp-drawable-edit-fill layer FILL-BACKGROUND)
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(gimp-selection-none img)
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(gimp-image-undo-group-end img)
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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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)
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(script-fu-register "script-fu-addborder"
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_"Add _Border..."
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_"Add a border around an image"
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"Andy Thomas <alt@picnic.demon.co.uk>, Michael Schumacher <schumaml@gmx.de>"
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"Andy Thomas, Michael Schumacher"
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"6/10/1997, 26/05/2017"
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"*"
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SF-IMAGE "Input image" 0
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SF-DRAWABLE "Input drawable" 0
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SF-ADJUSTMENT _"Border X size" '(12 1 250 1 10 0 1)
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SF-ADJUSTMENT _"Border Y size" '(12 1 250 1 10 0 1)
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SF-COLOR _"Border color" '(38 31 207)
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SF-ADJUSTMENT _"Delta value on color" '(25 1 255 1 10 0 1)
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SF-TOGGLE _"Allow resizing" TRUE
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)
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(script-fu-menu-register "script-fu-addborder"
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"<Image>/Filters/Decor")
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