186 lines
5.0 KiB
Scheme
186 lines
5.0 KiB
Scheme
; The GIMP -- an image manipulation program
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; Copyright (C) 1995 Spencer Kimball and Peter Mattis
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;
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; Button00 --- create a simple beveled Web button
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; Copyright (C) 1997 Federico Mena Quintero
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; federico@nuclecu.unam.mx
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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 (text-width extents)
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(car extents))
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(define (text-height extents)
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(cadr extents))
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(define (text-ascent extents)
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(caddr extents))
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(define (text-descent extents)
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(cadr (cddr extents)))
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(define (blend-bumpmap img drawable x1 y1 x2 y2)
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(gimp-blend img
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drawable
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FG-BG-RGB
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DARKEN-ONLY
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LINEAR
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100
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0
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REPEAT-NONE
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FALSE
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0
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0
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x1
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y1
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x2
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y2))
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(define (script-fu-button00 text
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size
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foundry
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family
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weight
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slant
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set-width
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spacing
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ul-color
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lr-color
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text-color
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padding
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bevel-width
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pressed)
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(let* ((old-fg-color (car (gimp-palette-get-foreground)))
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(old-bg-color (car (gimp-palette-get-background)))
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(text-extents (gimp-text-get-extents text
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size
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PIXELS
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foundry
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family
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weight
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slant
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set-width
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spacing))
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(ascent (text-ascent text-extents))
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(descent (text-descent text-extents))
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(img-width (+ (* 2 (+ padding bevel-width))
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(- (text-width text-extents)
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(text-width (gimp-text-get-extents " "
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size
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PIXELS
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foundry
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family
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weight
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slant
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set-width
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spacing)))))
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(img-height (+ (* 2 (+ padding bevel-width))
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(+ ascent descent)))
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(img (car (gimp-image-new img-width img-height RGB)))
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(bumpmap (car (gimp-layer-new img img-width img-height RGBA_IMAGE "Bumpmap" 100 NORMAL)))
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(gradient (car (gimp-layer-new img img-width img-height RGBA_IMAGE "Gradient" 100 NORMAL))))
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(gimp-image-disable-undo img)
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; Create bumpmap layer
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(gimp-image-add-layer img bumpmap -1)
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(gimp-palette-set-foreground '(0 0 0))
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(gimp-palette-set-background '(255 255 255))
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(gimp-edit-fill img bumpmap)
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(gimp-rect-select img 0 0 bevel-width img-height REPLACE FALSE 0)
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(blend-bumpmap img bumpmap 0 0 (- bevel-width 1) 0)
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(gimp-rect-select img 0 0 img-width bevel-width REPLACE FALSE 0)
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(blend-bumpmap img bumpmap 0 0 0 (- bevel-width 1))
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(gimp-rect-select img (- img-width bevel-width) 0 bevel-width img-height REPLACE FALSE 0)
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(blend-bumpmap img bumpmap (- img-width 1) 0 (- img-width bevel-width) 0)
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(gimp-rect-select img 0 (- img-height bevel-width) img-width bevel-width REPLACE FALSE 0)
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(blend-bumpmap img bumpmap 0 (- img-height 1) 0 (- img-height bevel-width))
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(gimp-selection-none img)
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; Create gradient layer
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(gimp-image-add-layer img gradient -1)
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(gimp-palette-set-foreground ul-color)
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(gimp-palette-set-background lr-color)
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(gimp-blend img
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gradient
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FG-BG-RGB
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NORMAL
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LINEAR
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100
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0
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REPEAT-NONE
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FALSE
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0
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0
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0
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0
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(- img-width 1)
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(- img-height 1))
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(plug-in-bump-map 1 img gradient bumpmap 135 45 bevel-width 0 0 0 0 TRUE pressed 0)
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; Create text layer
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(gimp-palette-set-foreground text-color)
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(let ((textl (car (gimp-text
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img -1 0 0 text 0 TRUE size PIXELS foundry family weight slant set-width spacing))))
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(gimp-layer-set-offsets textl
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(+ bevel-width padding)
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(+ bevel-width padding descent)))
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; Done
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(gimp-selection-none img)
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(gimp-palette-set-foreground old-fg-color)
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(gimp-palette-set-background old-bg-color)
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(gimp-image-enable-undo img)
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(gimp-display-new img)))
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; Register!
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(script-fu-register "script-fu-button00"
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"<Toolbox>/Xtns/Script-Fu/Buttons/Simple beveled button"
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"Simple beveled button"
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"Federico Mena Quintero"
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"Federico Mena Quintero"
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"June 1997"
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""
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SF-STRING "Text" "Hello world!"
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SF-VALUE "Size" "16"
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SF-STRING "Foundry" "adobe"
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SF-STRING "Family" "helvetica"
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SF-STRING "Weight" "bold"
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SF-STRING "Slant" "r"
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SF-STRING "Set width" "normal"
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SF-STRING "Spacing" "p"
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SF-COLOR "Upper-left color" '(0 255 127)
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SF-COLOR "Lower-right color" '(0 127 255)
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SF-COLOR "Text color" '(0 0 0)
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SF-VALUE "Padding" "2"
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SF-VALUE "Bevel width" "4"
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SF-VALUE "Pressed?" "FALSE")
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