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|
; The GIMP -- an image manipulation program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; Round Button --- create a round beveled Web button.
; Copyright (C) 1998 Federico Mena Quintero & Arturo Espinosa Aldama
; federico@nuclecu.unam.mx arturo@nuclecu.unam.mx
; ************************************************************************
; 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; The corresponding parameters have been replaced by an SF-FONT parameter.
; ************************************************************************
;
; 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 (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 (round-select img
x
y
width
height
ratio)
(let* ((diameter (* ratio height)))
(gimp-ellipse-select img x y diameter height CHANNEL-OP-ADD FALSE 0 0)
(gimp-ellipse-select img (+ x (- width diameter)) y
diameter height CHANNEL-OP-ADD FALSE 0 0)
(gimp-rect-select img (+ x (/ diameter 2)) y
(- width diameter) height CHANNEL-OP-ADD FALSE 0)))
(define (script-fu-round-button text
size
font
ul-color
lr-color
text-color
ul-color-high
lr-color-high
hlight-color
xpadding
ypadding
bevel
ratio
notpressed
notpressed-active
pressed)
(cond ((eqv? notpressed TRUE)
(do-pupibutton text size font ul-color lr-color
text-color xpadding ypadding bevel ratio 0)))
(cond ((eqv? notpressed-active TRUE)
(do-pupibutton text size font ul-color-high lr-color-high
hlight-color xpadding ypadding bevel ratio 0)))
(cond ((eqv? pressed TRUE)
(do-pupibutton text size font ul-color-high lr-color-high
hlight-color xpadding ypadding bevel ratio 1))))
(define (do-pupibutton text
size
font
ul-color
lr-color
text-color
xpadding
ypadding
bevel
ratio
pressed)
(let* ((text-extents (gimp-text-get-extents-fontname text
size
PIXELS
font))
(ascent (text-ascent text-extents))
(descent (text-descent text-extents))
(height (+ (* 2 (+ ypadding bevel))
(+ ascent descent)))
(radius (/ (* ratio height) 4))
(width (+ (* 2 (+ radius xpadding))
bevel
(text-width text-extents)))
(img (car (gimp-image-new width height RGB)))
(bumpmap (car (gimp-layer-new img width height
RGBA-IMAGE "Bumpmap" 100 NORMAL-MODE)))
(gradient (car (gimp-layer-new img width height
RGBA-IMAGE "Button" 100 NORMAL-MODE))))
(gimp-context-push)
(gimp-image-undo-disable img)
; Create bumpmap layer
(gimp-image-add-layer img bumpmap -1)
(gimp-selection-none img)
(gimp-context-set-background '(0 0 0))
(gimp-edit-fill bumpmap BACKGROUND-FILL)
(round-select img (/ bevel 2) (/ bevel 2)
(- width bevel) (- height bevel) ratio)
(gimp-context-set-background '(255 255 255))
(gimp-edit-fill bumpmap BACKGROUND-FILL)
(gimp-selection-none img)
(plug-in-gauss-rle 1 img bumpmap bevel 1 1)
; Create gradient layer
(gimp-image-add-layer img gradient -1)
(gimp-edit-clear gradient)
(round-select img 0 0 width height ratio)
(gimp-context-set-foreground ul-color)
(gimp-context-set-background lr-color)
(gimp-edit-blend gradient FG-BG-RGB-MODE NORMAL-MODE
GRADIENT-LINEAR 100 0 REPEAT-NONE FALSE
FALSE 0 0 TRUE
0 0 0 (- height 1))
(gimp-selection-none img)
(plug-in-bump-map 1 img gradient bumpmap
135 45 bevel 0 0 0 0 TRUE pressed 0)
; Create text layer
(cond ((eqv? pressed 1) (set! bevel (+ bevel 1))))
(gimp-context-set-foreground text-color)
(let ((textl (car (gimp-text-fontname
img -1 0 0 text 0 TRUE size PIXELS
font))))
(gimp-layer-set-offsets textl
(+ xpadding radius bevel)
(+ ypadding descent bevel)))
; Delete some fucked-up pixels.
(gimp-selection-none img)
(round-select img 1 1 (- width 1) (- height 1) ratio)
(gimp-selection-invert img)
(gimp-edit-clear gradient)
; Done
(gimp-image-remove-layer img bumpmap)
(gimp-image-merge-visible-layers img EXPAND-AS-NECESSARY)
(gimp-selection-none img)
(gimp-image-undo-enable img)
(gimp-display-new img)
(gimp-context-pop)))
(script-fu-register "script-fu-round-button"
_"_Round Button..."
"Round button"
"Arturo Espinosa (stolen from quartic's beveled button)"
"Arturo Espinosa & Federico Mena Quintero"
"June 1998"
""
SF-STRING _"Text" "The GIMP"
SF-ADJUSTMENT _"Font size (pixels)" '(16 2 100 1 1 0 1)
SF-FONT _"Font" "Sans"
SF-COLOR _"Upper color" '(192 192 0)
SF-COLOR _"Lower color" '(128 108 0)
SF-COLOR _"Text color" '(0 0 0)
SF-COLOR _"Upper color (active)" '(255 255 0)
SF-COLOR _"Lower color (active)" '(128 108 0)
SF-COLOR _"Text color (active)" '(0 0 192)
SF-ADJUSTMENT _"Padding X" '(4 0 100 1 10 0 1)
SF-ADJUSTMENT _"Padding Y" '(4 0 100 1 10 0 1)
SF-ADJUSTMENT _"Bevel width" '(2 0 100 1 10 0 1)
SF-ADJUSTMENT _"Round ratio" '(1 0.05 20 0.05 1 2 1)
SF-TOGGLE _"Not pressed" TRUE
SF-TOGGLE _"Not pressed (active)" TRUE
SF-TOGGLE _"Pressed" TRUE)
(script-fu-menu-register "script-fu-round-button"
_"<Toolbox>/Xtns/Script-Fu/Buttons")
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