; FU_artist_color-pencil.scm
; version 2.7 [gimphelp.org]
; last modified/tested by Paul Sherman
; 05/05/2012 on GIMP-2.8
;
; ------------------------------------------------------------------
; Original information ---------------------------------------------
;
; Color pencil image script  for GIMP 2.2
; Copyright (C) 2007 Eddy Verlinden <eddy_verlinden@hotmail.com>
; 
; End original information ------------------------------------------
;--------------------------------------------------------------------

(define (FU-color-pencil
			img
			drawable
	)

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

  (let* (
	 (width (car (gimp-drawable-width drawable)))
	 (height (car (gimp-drawable-height drawable)))
	 (old-selection (car (gimp-selection-save img)))
	 (image-type (car (gimp-image-base-type img)))
	 (layer-type (car (gimp-drawable-type drawable)))
	 (layer-temp1 (car (gimp-layer-new img width height layer-type "temp1"  100 NORMAL-MODE)))
        ) 

    (if (eqv? (car (gimp-selection-is-empty img)) TRUE)
        (gimp-drawable-fill old-selection WHITE-IMAGE-FILL)) ; so Empty and All are the same.
    (gimp-selection-none img)
    (gimp-drawable-fill layer-temp1 TRANS-IMAGE-FILL)
    (gimp-image-insert-layer img layer-temp1 0 -1)
    (gimp-layer-add-alpha layer-temp1)
    (gimp-edit-copy drawable)
    (gimp-floating-sel-anchor (car (gimp-edit-paste layer-temp1 0)))

    (plug-in-gimpressionist 1 img layer-temp1 "ev_coloredpencil.txt")
    (gimp-hue-saturation layer-temp1 0 0 0 60) 

    (gimp-image-select-item img CHANNEL-OP-REPLACE old-selection)
    (gimp-selection-invert img)
    (if (eqv? (car (gimp-selection-is-empty img)) FALSE) ; both Empty and All are denied
        (begin
        (gimp-edit-clear layer-temp1)
        ))

    (gimp-item-set-name layer-temp1 "Col Pencil")
    (gimp-image-select-item img CHANNEL-OP-REPLACE old-selection)
    (gimp-image-remove-channel img old-selection)


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

(script-fu-register
  "FU-color-pencil"
  "<Image>/Script-Fu/Artist/Color Pencil"
  "Creates a drawing effect like made with colored pencils"
  "Eddy Verlinden <eddy_verlinden@hotmail.com>"
  "Eddy Verlinden"
  "2007, juli"
  "RGB* GRAY*"
  SF-IMAGE      "Image"	            0
  SF-DRAWABLE   "Drawable"          0
)