;
; The GIMP -- an image manipulation program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; Landscape Painter script  for GIMP 2.4
; Original author: Mark Lowry
;
; Tags: photo, artistic
;
; Author statement:
;
; A GIMP script-fu to generate a painted look to a
; landscape photo.  Sometimes provides an interesting
; effect on portraits and animal shots.
;
; Creates a top layer set to Darken Only mode and
; then blurs it.  Varying the blur radius will change
; the effect, as will applying a Levels or Curves adjustment
; to the Darken Only layer.  Just play with it and see
; what you get!
;
; --------------------------------------------------------------------
; Distributed by Gimp FX Foundry project
; --------------------------------------------------------------------
;   - Changelog -
; Created on 4/12/2006 for v.2.2.8
; Revised on 10/27/2007 to fix unbound variables (required for v.2.4.0).
;
; --------------------------------------------------------------------
;
; 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.
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;


(define (script-fu-Land_paint  img drawable blur-rad merge-flag )

   (let* (
           (darken-layer 0)
           (merged-layer 0)
         )

   ; Start an undo group.  Everything between the start and the end
   ; will be carried out if an undo command is issued.

   (gimp-image-undo-group-start img)


   ;; CREATE THE DARKEN ONLY LAYER ;;

   ; Create a new layer

   (set! darken-layer (car (gimp-layer-copy drawable 0)))

   ; Give it a name

   (gimp-drawable-set-name darken-layer _"Darken Only layer")

   ; Add the new layer to the image

   (gimp-image-add-layer img darken-layer 0)

   ; Set opacity to 100%

   (gimp-layer-set-opacity darken-layer 100)

   (gimp-layer-set-mode darken-layer DARKEN-ONLY-MODE )

   ;
   ;

   ; Blur the layer

   (if (> blur-rad 0)
       (plug-in-gauss-iir 1 img darken-layer blur-rad 1 1 )
       ()
   )

   ;
   ;

   ; NOW MERGE EVERYTHING DOWN IF DESIRED

   (if (equal? merge-flag TRUE)

       (set! merged-layer (car(gimp-image-merge-down img darken-layer 1 )))

       ()
   )

   (if (equal? merge-flag TRUE)

       (gimp-drawable-set-name merged-layer _"Result of Landscape Painter")

       ()

   )

   ; Complete the undo group

   (gimp-image-undo-group-end img)

   ; Flush the display

   (gimp-displays-flush)

   )

)


(script-fu-register "script-fu-Land_paint"
      _"_Landscape Painter"
      _"Add Darken Only layer and blur it"
      "Mark Lowry"
      "Technique by Mark Lowry"
      "2007"
      "RGB*, GRAY*"
      SF-IMAGE "Image" 0
      SF-DRAWABLE "Current Layer" 0
      SF-VALUE _"Blur radius?"   "15"
      SF-TOGGLE _"Merge Layers?"  FALSE
 )

(script-fu-menu-register "script-fu-Land_paint"
                         "<Image>/FX-Foundry/Artistic/")
