71 lines
2.6 KiB
Scheme
71 lines
2.6 KiB
Scheme
; Newsprint text
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; Copyright (c) 1998 Austin Donnelly <austin@greenend.org.uk>
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;
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;
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; Based on alien glow code from Adrian Likins
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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 2 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, write to the Free Software
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; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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(define (script-fu-newsprint-text string font font-size cell-size density)
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(let* ((text-ext (gimp-text-get-extents-fontname string font-size PIXELS font))
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(wid (+ (car text-ext) 20))
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(hi (+ (nth 1 text-ext) 20))
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(img (car (gimp-image-new wid hi RGB)))
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(bg-layer (car (gimp-layer-new img wid hi RGB_IMAGE "Background" 100 NORMAL)))
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(text-layer (car (gimp-layer-new img wid hi RGBA_IMAGE "Text layer" 100 NORMAL)))
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(text-mask 0)
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(grey (/ (* density 255) 100))
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(old-bg (car (gimp-palette-get-background))))
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(gimp-image-undo-disable img)
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(gimp-image-add-layer img bg-layer 1)
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(gimp-image-add-layer img text-layer -1)
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(gimp-edit-clear bg-layer)
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(gimp-edit-clear text-layer)
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(gimp-floating-sel-anchor (car (gimp-text-fontname img text-layer 10 10 string 0 TRUE font-size PIXELS font)))
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(set! text-mask (car (gimp-layer-create-mask text-layer ALPHA-MASK)))
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(gimp-image-add-layer-mask img text-layer text-mask)
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(gimp-selection-layer-alpha text-layer)
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(gimp-palette-set-background (list grey grey grey))
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(gimp-edit-fill text-mask)
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(plug-in-newsprint 1 img text-mask cell-size 0 0 45.0 3 45.0 0 45.0 0 45.0 0 3)
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(gimp-image-remove-layer-mask img text-layer APPLY)
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; (gimp-selection-clear img)
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(gimp-palette-set-background old-bg)
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(gimp-image-undo-enable img)
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(gimp-display-new img)))
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(script-fu-register "script-fu-newsprint-text"
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"<Toolbox>/Xtns/Script-Fu/Logos/Newsprint Text..."
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"apply a screen to text"
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"Austin Donnelly"
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"Austin Donnelly"
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"1998"
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""
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SF-STRING "Text String" "Newsprint"
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SF-FONT "Font" "-*-Helvetica-*-r-*-*-24-*-*-*-p-*-*-*"
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SF-ADJUSTMENT "Font Size (pixels)" '(100 2 1000 1 10 0 1)
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SF-VALUE "Cell size (in pixels)" "7"
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SF-ADJUSTMENT "Density (%)" '(60 0 100 1 10 0 0))
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