194 lines
6.9 KiB
Scheme
194 lines
6.9 KiB
Scheme
; PIKA - Photo and Image Kooker Application
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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 (pika-item-get-image adraw)))
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(imagewidth (car (pika-image-get-width img)))
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(imageheight (car (pika-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 (pika-layer-new img
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outerwidth outerheight
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(car (pika-drawable-type-with-alpha adraw))
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_"Border Layer" 100 LAYER-MODE-NORMAL))))
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(pika-context-push)
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(pika-context-set-antialias FALSE)
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(pika-context-set-feather FALSE)
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(pika-image-undo-group-start img)
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(if (= allow-resize TRUE)
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(pika-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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(pika-image-insert-layer img layer 0 0)
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(pika-drawable-fill layer FILL-TRANSPARENT)
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(pika-context-set-background (adjcolor color dvalue))
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(pika-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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(pika-drawable-edit-fill layer FILL-BACKGROUND)
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(pika-context-set-background (adjcolor color (/ dvalue 2)))
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(pika-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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(pika-drawable-edit-fill layer FILL-BACKGROUND)
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(pika-context-set-background (adjcolor color (- 0 (/ dvalue 2))))
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(pika-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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(pika-drawable-edit-fill layer FILL-BACKGROUND)
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(pika-context-set-background (adjcolor color (- 0 dvalue)))
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(pika-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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(pika-drawable-edit-fill layer FILL-BACKGROUND)
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(pika-selection-none img)
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(pika-image-undo-group-end img)
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(pika-displays-flush)
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(pika-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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