77ce47a3d6
* pupi-button.scm: (script-fu-round-button) A new beveled button script for rendering round, elliptical or squared buttons.
240 lines
6.5 KiB
Scheme
240 lines
6.5 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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; Round Button --- create a round beveled Web button.
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; Copyright (C) 1998 Federico Mena Quintero & Arturo Espinosa Aldama
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; federico@nuclecu.unam.mx arturo@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 (round-select img x y width height ratio)
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(let* ((diameter (* ratio height)))
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(gimp-ellipse-select img x y diameter height ADD FALSE 0 0)
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(gimp-ellipse-select img (+ x (- width diameter)) y
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diameter height ADD FALSE 0 0)
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(gimp-rect-select img (+ x (/ diameter 2)) y
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(- width diameter) height ADD FALSE 0 0)))
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(define (script-fu-round-button 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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ul-color-high
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lr-color-high
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hlight-color
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xpadding
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ypadding
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bevel
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ratio
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notpressed
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notpressed-active
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pressed)
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(cond ((eqv? notpressed TRUE)
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(do-pupibutton text size foundry family weight slant
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set-width spacing ul-color lr-color
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text-color xpadding ypadding bevel ratio 0)))
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(cond ((eqv? notpressed-active TRUE)
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(do-pupibutton text size foundry family weight slant
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set-width spacing ul-color-high lr-color-high
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hlight-color xpadding ypadding bevel ratio 0)))
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(cond ((eqv? pressed TRUE)
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(do-pupibutton text size foundry family weight slant
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set-width spacing ul-color-high lr-color-high
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hlight-color xpadding ypadding bevel ratio 1))))
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(define (do-pupibutton 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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xpadding
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ypadding
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bevel
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ratio
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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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(height (+ (* 2 (+ ypadding bevel))
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(+ ascent descent)))
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(radius (/ (* ratio height) 4))
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(width (+ (* 2 (+ radius xpadding)) bevel
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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 (car (gimp-image-new width height RGB)))
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(bumpmap (car (gimp-layer-new img width height
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RGBA_IMAGE "Bumpmap" 100 NORMAL)))
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(gradient (car (gimp-layer-new img width height
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RGBA_IMAGE "Button" 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-selection-none img)
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(gimp-palette-set-background '(0 0 0))
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(gimp-edit-fill img bumpmap)
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(round-select img (/ bevel 2) (/ bevel 2)
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(- width bevel) (- height bevel) ratio)
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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-selection-none img)
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(plug-in-gauss-rle 1 img bumpmap bevel 1 1)
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; Create gradient layer
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(gimp-image-add-layer img gradient -1)
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(gimp-edit-clear img gradient)
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(round-select img 0 0 width height ratio)
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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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0
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(- height 1))
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(gimp-selection-none img)
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(plug-in-bump-map 1 img gradient bumpmap
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135 45 bevel 0 0 0 0 TRUE pressed 0)
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; Create text layer
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(cond ((eqv? pressed 1) (set! bevel (+ bevel 1))))
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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
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foundry family weight slant set-width spacing))))
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(gimp-layer-set-offsets textl
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(+ xpadding radius bevel)
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(+ ypadding descent bevel)))
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; Delete some fucked-up pixels.
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(gimp-selection-none img)
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(round-select img 1 1 (- width 1) (- height 1) ratio)
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(gimp-selection-invert img)
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(gimp-edit-clear img gradient)
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; Done
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(gimp-image-remove-layer img bumpmap)
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(gimp-image-merge-visible-layers img EXPAND-AS-NECESSARY)
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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-round-button"
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"<Toolbox>/Xtns/Script-Fu/Buttons/Round button"
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"Round button"
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"Arturo Espinosa (stolen from quartic's beveled button)"
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"Arturo Espinosa & Federico Mena Quintero"
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"June 1998"
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""
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SF-VALUE "Text" "\"\""
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SF-VALUE "Size" "16"
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SF-VALUE "Foundry" "\"adobe\""
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SF-VALUE "Family" "\"helvetica\""
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SF-VALUE "Weight" "\"bold\""
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SF-VALUE "Slant" "\"r\""
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SF-VALUE "Set width" "\"normal\""
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SF-VALUE "Spacing" "\"p\""
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SF-COLOR "Upper color" '(192 192 0)
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SF-COLOR "Lower color" '(128 108 0)
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SF-COLOR "Text color" '(0 0 0)
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SF-COLOR "Upper color (active)" '(255 255 0)
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SF-COLOR "Lower color (active)" '(128 108 0)
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SF-COLOR "Text color (active)" '(0 0 192)
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SF-VALUE "xPadding" "4"
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SF-VALUE "yPadding" "4"
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SF-VALUE "Bevel width" "2"
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SF-VALUE "Round ratio" "1"
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SF-TOGGLE "Not-pressed " TRUE
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SF-TOGGLE "Not-pressed (active)" TRUE
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SF-TOGGLE "Pressed " TRUE)
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