;
; old-photo
;
;
; 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 2 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, write to the Free Software
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
;
; Branko Collin <collin@xs4all.nl> added the possibility to change
; the border size in October 2001.

; Define the function:

(define (script-fu-old-photo inImage inLayer inDefocus inBorderSize inSepia inMottle inCopy)
  (gimp-image-undo-group-start inImage)
  (gimp-selection-all inImage)
  (set! theImage (if (= inCopy TRUE)
		     (car (gimp-image-duplicate inImage))
		     inImage)
        )
  
  (set! theLayer (car (gimp-image-flatten theImage)))
  (if (= inDefocus TRUE)
      (plug-in-gauss-rle TRUE theImage theLayer 1.5 TRUE TRUE)
      ()
      )
  (if (> inBorderSize 0)
      (script-fu-fuzzy-border theImage theLayer '(255 255 255)
			      inBorderSize TRUE 8 FALSE 100 FALSE TRUE )
      ()
      )
  (set! theLayer (car (gimp-image-flatten theImage)))
  
  (if (= inSepia TRUE)
      (begin (gimp-desaturate theLayer)
	     (gimp-brightness-contrast theLayer -20 -40)
	     (gimp-color-balance theLayer 0 TRUE 30 0 -30)
	     )
      ()
      )
  (set! theWidth (car (gimp-image-width theImage)))
  (set! theHeight (car (gimp-image-height theImage)))
  (if (= inMottle TRUE)
      (begin (set! mLayer (car (gimp-layer-new theImage theWidth theHeight RGBA-IMAGE "Mottle" 100 DARKEN-ONLY-MODE)))
	     
	     (gimp-image-add-layer theImage mLayer 0)
	     (gimp-selection-all theImage)
	     (gimp-edit-clear mLayer)
	     (gimp-selection-none theImage)
	     (plug-in-noisify TRUE theImage mLayer TRUE 0 0 0 0.5)
	     (plug-in-gauss-rle TRUE theImage mLayer 5 TRUE TRUE)
	     (set! theLayer (car (gimp-image-flatten theImage)))
	     )
      ()
      )
  
  
  
  (if     (= inCopy TRUE)
	  (begin  (gimp-image-clean-all theImage)
		  (gimp-display-new theImage)
		  )
	  ()
	  )
  (gimp-selection-none inImage)
  (gimp-image-undo-group-end inImage)
  (gimp-displays-flush theImage)
  )

; Register the function with the GIMP:

(script-fu-register
    "script-fu-old-photo"
    _"<Image>/Script-Fu/Decor/_Old Photo..."
    "Makes the image look like an old photo. A border size of 0 means no border."
    "Chris Gutteridge"
    "1998, Chris Gutteridge / ECS dept, University of Southampton, England."
    "16th April 1998"
    "RGB* GRAY*"
    SF-IMAGE      "The Image"     0
    SF-DRAWABLE   "The Layer"     0
    SF-TOGGLE     _"Defocus"      TRUE
    SF-ADJUSTMENT _"Border Size"  '(20 0 300 1 10 0 1)
       ; since this plug-in uses the fuzzy-border plug-in, I used the
       ; values of the latter, with the exception of the initial value
       ; and the 'minimum' value.
    SF-TOGGLE     _"Sepia"        TRUE
    SF-TOGGLE     _"Mottle"       FALSE
    SF-TOGGLE     _"Work on Copy" TRUE
    )