beveled-pattern-button.scm 4.05 KB
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; The GIMP -- an image manipulation program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
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;
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; Beveled pattern button for web pages
; Copyright (C) 1997 Federico Mena Quintero
; federico@nuclecu.unam.mx
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;
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; 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.
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;
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; 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.
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;
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; 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.
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; ************************************************************************
; Changed on Feb 4, 1999 by Piet van Oostrum <piet@cs.uu.nl>
; For use with GIMP 1.1.
; All calls to gimp-text-* have been converted to use the *-fontname form.
; The corresponding parameters have been replaced by an SF-FONT parameter.
; ************************************************************************
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(define (text-width extents)
  (car extents))

(define (text-height extents)
  (cadr extents))

(define (text-ascent extents)
  (caddr extents))

(define (text-descent extents)
  (cadr (cddr extents)))

(define (script-fu-beveled-pattern-button
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	 text text-size font text-color pattern pressed)
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  (let* ((text-extents (gimp-text-get-extents-fontname
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			text text-size PIXELS font))
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	 (ascent (text-ascent text-extents))
	 (descent (text-descent text-extents))

	 (xpadding 8)
	 (ypadding 6)

	 (width (+ (* 2 xpadding)
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		   (text-width text-extents)))
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	 (height (+ (* 2 ypadding)
		    (+ ascent descent)))
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	 (img (car (gimp-image-new width height RGB)))
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	 (background (car (gimp-layer-new img width height RGBA-IMAGE "Background" 100 NORMAL-MODE)))
	 (bumpmap (car (gimp-layer-new img width height RGBA-IMAGE "Bumpmap" 100 NORMAL-MODE)))
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	 (textl (car
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		 (gimp-text-fontname
		  img -1 0 0 text 0 TRUE text-size PIXELS font))))
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    (gimp-context-push)

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    (gimp-image-undo-disable img)
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    (gimp-image-add-layer img background 1)
    (gimp-image-add-layer img bumpmap 1)

    ; Create pattern layer

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    (gimp-context-set-background '(0 0 0))
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    (gimp-edit-fill background BACKGROUND-FILL)
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    (gimp-patterns-set-pattern pattern)
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    (gimp-edit-bucket-fill background PATTERN-BUCKET-FILL NORMAL-MODE 100 0 FALSE 0 0)
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    ; Create bumpmap layer

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    (gimp-edit-fill bumpmap BACKGROUND-FILL)
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    (gimp-context-set-background '(127 127 127))
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    (gimp-rect-select img 1 1 (- width 2) (- height 2) CHANNEL-OP-REPLACE FALSE 0)
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    (gimp-edit-fill bumpmap BACKGROUND-FILL)
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    (gimp-context-set-background '(255 255 255))
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    (gimp-rect-select img 2 2 (- width 4) (- height 4) CHANNEL-OP-REPLACE FALSE 0)
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    (gimp-edit-fill bumpmap BACKGROUND-FILL)
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    (gimp-selection-none img)

    ; Bumpmap

    (plug-in-bump-map 1 img background bumpmap 135 45 2 0 0 0 0 TRUE pressed 0)

    ; Color and position text

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    (gimp-context-set-background text-color)
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    (gimp-layer-set-preserve-trans textl TRUE)
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    (gimp-edit-fill textl BACKGROUND-FILL)
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    (gimp-layer-set-offsets textl
			    xpadding
			    (+ ypadding descent))

    ; Clean up

    (gimp-image-set-active-layer img background)
    (gimp-image-remove-layer img bumpmap)
    (gimp-image-flatten img)

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    (gimp-image-undo-enable img)
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    (gimp-display-new img)

    (gimp-context-pop)))
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(script-fu-register "script-fu-beveled-pattern-button"
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		    _"<Toolbox>/Xtns/Script-Fu/Web Page Themes/Beveled Pattern/B_utton..."
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		    "Beveled pattern button"
		    "Federico Mena Quintero"
		    "Federico Mena Quintero"
		    "July 1997"
		    ""
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		    SF-STRING  _"Text"       "Hello world!"
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		    SF-ADJUSTMENT _"Font size (pixels)" '(32 2 1000 1 10 0 1)
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		    SF-FONT    _"Font" "Sans"
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		    SF-COLOR   _"Text color" '(0 0 0)
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		    SF-PATTERN _"Pattern"    "Wood"
		    SF-TOGGLE  _"Pressed"   FALSE)