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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- ; The corresponding parameters have been replaced by an SF-FONT parameter.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")
-