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; Newsprint text
; Copyright (c) 1998 Austin Donnelly <austin@greenend.org.uk>
;
;
; Based on alien glow code from Adrian Likins
;
; 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-newsprint-text string font font-size cell-size density blur-radius text-color bg-color)
(let* ((text-ext (gimp-text-get-extents-fontname string font-size PIXELS font))
(width (+ (car text-ext) 20 blur-radius))
(height (+ (nth 1 text-ext) 20 blur-radius))
(img (car (gimp-image-new width height RGB)))
(bg-layer (car (gimp-layer-new img width height RGB-IMAGE "Background" 100 NORMAL-MODE)))
(text-layer (car (gimp-layer-new img width height RGBA-IMAGE "Text layer" 100 NORMAL-MODE)))
(text-mask 0)
(grey (/ (* density 255) 100)))
(gimp-context-push)
(gimp-image-undo-disable img)
(gimp-image-add-layer img bg-layer 1)
(gimp-image-add-layer img text-layer -1)
(gimp-context-set-background bg-color)
(gimp-edit-clear bg-layer)
(gimp-edit-clear text-layer)
(gimp-context-set-foreground text-color)
(gimp-floating-sel-anchor (car (gimp-text-fontname img text-layer (/ (+ 20 blur-radius) 2) (/ (+ 20 blur-radius) 2) string 0 TRUE font-size PIXELS font)))
(set! text-mask (car (gimp-layer-create-mask text-layer ADD-ALPHA-MASK)))
(gimp-layer-add-mask text-layer text-mask)
(gimp-selection-layer-alpha text-layer)
(gimp-context-set-background (list grey grey grey))
(gimp-edit-fill text-mask BACKGROUND-FILL)
(gimp-selection-none img)
(if (> blur-radius 0)
(plug-in-gauss-iir 1 img text-mask blur-radius 1 1)
)
(plug-in-newsprint 1 img text-mask cell-size 0 0 45.0 3 45.0 0 45.0 0 45.0 0 3)
(gimp-edit-fill text-layer FOREGROUND-FILL)
(gimp-layer-remove-mask text-layer MASK-APPLY)
(gimp-image-undo-enable img)
(gimp-display-new img)
(gimp-context-pop)))
(script-fu-register "script-fu-newsprint-text"
_"Newsprint Text..."
"Apply a screen to text"
"Austin Donnelly"
"Austin Donnelly"
"1998"
""
SF-STRING _"Text" "Newsprint"
SF-FONT _"Font" "Sans"
SF-ADJUSTMENT _"Font size (pixels)" '(100 2 1000 1 10 0 1)
SF-ADJUSTMENT _"Cell size (pixels)" '(7 1 100 1 10 0 1)
SF-ADJUSTMENT _"Density (%)" '(60 0 100 1 10 0 0)
SF-ADJUSTMENT _"Blur radius" '(0 0 100 1 5 0 0)
SF-COLOR _"Text color" '(0 0 0)
SF-COLOR _"Background color" '(255 255 255))
(script-fu-menu-register "script-fu-newsprint-text"
_"<Toolbox>/Xtns/Script-Fu/Logos")
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