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gimp/plug-ins/script-fu/scripts/carve-it.scm
Kevin Cozens 6239dddda3 With this commit we finally say goodbye to SIOD. This large set of changes 
2006-10-15  Kevin Cozens  <kcozens@cvs.gnome.org>

	With this commit we finally say goodbye to SIOD. This large set of
	changes updates the Script-Fu plug-in to use the TinyScheme Scheme
	interpreter. These changes originated with changes originally made
	to Script-Fu which created Tiny-Fu (aka. the gimp-tiny-fu module).

	* plug-ins/script-fu/Makefile.am
	* plug-ins/script-fu/script-fu-console.c
	* plug-ins/script-fu/script-fu-interface.c
	* plug-ins/script-fu/script-fu-scripts.c
	* plug-ins/script-fu/script-fu-scripts.h
	* plug-ins/script-fu/script-fu-server.c
	* plug-ins/script-fu/script-fu-text-console.c
	* plug-ins/script-fu/script-fu.c: Updated with the changes made to
	these files as part of the work on the Tiny-Fu project.

	* plug-ins/script-fu/scheme-wrapper.c
	* plug-ins/script-fu/scheme-wrapper.h: Renamed from siod-wrapper.[ch]
	and updated based on differences to ts-wrapper.[ch] from gimp-tiny-fu.

	* plug-ins/script-fu/ftx/*
	* plug-ins/script-fu/re/*
	* plug-ins/script-fu/tinyscheme/*
	* plug-ins/script-fu/scripts/script-fu.init
	* plug-ins/script-fu/scripts/script-fu-compat.init
	* plug-ins/script-fu/scripts/contactsheet.scm
	* plug-ins/script-fu/scripts/script-fu-set-cmap.scm
	* plug-ins/script-fu/scripts/script-fu-util-setpt.scm
	* plug-ins/script-fu/scripts/ts-helloworld.scm: Added all of these
	files and directories from Tiny-Fu. Updated the Makefile.am files
	of ftx, re, and tinyscheme now they are in the GIMP source tree.

	* plug-ins/script-fu/scripts/*.scm: All scripts have been updated as
	needed to ensure they will work with the TinyScheme interpreter. Most
	of the files have been reformatted making it easier to see the syntax
	of Scheme and making them easier to read.

	* plug-ins/script-fu/scripts/Makefile.am: Updated script file lists.

	* plug-ins/script-fu/siod-wrapper.c
	* plug-ins/script-fu/siod-wrapper.h
	* plug-ins/script-fu/siod/*: Removed obsolete files.

	* configure.in: Updated list of files in AC_CONFIG_FILES. Changed
	--disable-script-fu to --without-script-fu which it should have
	been when originally added.

	* INSTALL: Updated to show change to --without-script-fu.
2006-10-16 01:08:54 +00:00

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; CARVE-IT
; Carving, embossing, & stamping
; Process taken from "The Photoshop 3 WOW! Book"
; http://www.peachpit.com
; This script requires a grayscale image containing a single layer.
; This layer is used as the mask for the carving effect
; NOTE: This script requires the image to be carved to either be an
; RGB colour or grayscale image with a single layer. An indexed file
; can not be used due to the use of gimp-histogram and gimp-levels.
(define (carve-brush brush-size)
(cond ((<= brush-size 5) "Circle (05)")
((<= brush-size 7) "Circle (07)")
((<= brush-size 9) "Circle (09)")
((<= brush-size 11) "Circle (11)")
((<= brush-size 13) "Circle (13)")
((<= brush-size 15) "Circle (15)")
((<= brush-size 17) "Circle (17)")
(else "Circle (19)")))
(define (carve-scale val scale)
(* (sqrt val) scale))
(define (calculate-inset-gamma img layer)
(let* ((stats (gimp-histogram layer 0 0 255))
(mean (car stats)))
(cond ((< mean 127) (+ 1.0 (* 0.5 (/ (- 127 mean) 127.0))))
((>= mean 127) (- 1.0 (* 0.5 (/ (- mean 127) 127.0)))))))
(define (copy-layer-carve-it dest-image dest-drawable source-image source-drawable)
(gimp-selection-all dest-image)
(gimp-edit-clear dest-drawable)
(gimp-selection-none dest-image)
(gimp-selection-all source-image)
(gimp-edit-copy source-drawable)
(let ((floating-sel (car (gimp-edit-paste dest-drawable FALSE))))
(gimp-floating-sel-anchor floating-sel)))
(define (script-fu-carve-it mask-img mask-drawable bg-layer carve-white)
(let* (
(width (car (gimp-drawable-width mask-drawable)))
(height (car (gimp-drawable-height mask-drawable)))
(type (car (gimp-drawable-type bg-layer)))
(img (car (gimp-image-new width height (cond ((= type RGB-IMAGE) RGB)
((= type RGBA-IMAGE) RGB)
((= type GRAY-IMAGE) GRAY)
((= type GRAYA-IMAGE) GRAY)
((= type INDEXED-IMAGE) INDEXED)
((= type INDEXEDA-IMAGE) INDEXED)))))
(size (min width height))
(offx (carve-scale size 0.33))
(offy (carve-scale size 0.25))
(feather (carve-scale size 0.3))
(brush-size (carve-scale size 0.3))
(mask-fs 0)
(mask (car (gimp-channel-new img width height "Engraving Mask" 50 '(0 0 0))))
(inset-gamma (calculate-inset-gamma (car (gimp-drawable-get-image bg-layer)) bg-layer))
(mask-fat 0)
(mask-emboss 0)
(mask-highlight 0)
(mask-shadow 0)
(shadow-layer 0)
(highlight-layer 0)
(cast-shadow-layer 0)
(csl-mask 0)
(inset-layer 0)
(il-mask 0)
(bg-width (car (gimp-drawable-width bg-layer)))
(bg-height (car (gimp-drawable-height bg-layer)))
(bg-type (car (gimp-drawable-type bg-layer)))
(bg-image (car (gimp-drawable-get-image bg-layer)))
(layer1 (car (gimp-layer-new img bg-width bg-height bg-type "Layer1" 100 NORMAL-MODE)))
)
(gimp-context-push)
(gimp-image-undo-disable img)
(gimp-image-add-layer img layer1 0)
(gimp-selection-all img)
(gimp-edit-clear layer1)
(gimp-selection-none img)
(copy-layer-carve-it img layer1 bg-image bg-layer)
(gimp-edit-copy mask-drawable)
(gimp-image-add-channel img mask 0)
(plug-in-tile 1 img layer1 width height FALSE)
(set! mask-fs (car (gimp-edit-paste mask FALSE)))
(gimp-floating-sel-anchor mask-fs)
(if (= carve-white FALSE)
(gimp-invert mask))
(set! mask-fat (car (gimp-channel-copy mask)))
(gimp-image-add-channel img mask-fat 0)
(gimp-selection-load mask-fat)
(gimp-context-set-brush (carve-brush brush-size))
(gimp-context-set-foreground '(255 255 255))
(gimp-edit-stroke mask-fat)
(gimp-selection-none img)
(set! mask-emboss (car (gimp-channel-copy mask-fat)))
(gimp-image-add-channel img mask-emboss 0)
(plug-in-gauss-rle 1 img mask-emboss feather TRUE TRUE)
(plug-in-emboss 1 img mask-emboss 315.0 45.0 7 TRUE)
(gimp-context-set-background '(180 180 180))
(gimp-selection-load mask-fat)
(gimp-selection-invert img)
(gimp-edit-fill mask-emboss BACKGROUND-FILL)
(gimp-selection-load mask)
(gimp-edit-fill mask-emboss BACKGROUND-FILL)
(gimp-selection-none img)
(set! mask-highlight (car (gimp-channel-copy mask-emboss)))
(gimp-image-add-channel img mask-highlight 0)
(gimp-levels mask-highlight 0 180 255 1.0 0 255)
(set! mask-shadow mask-emboss)
(gimp-levels mask-shadow 0 0 180 1.0 0 255)
(gimp-edit-copy mask-shadow)
(set! shadow-layer (car (gimp-edit-paste layer1 FALSE)))
(gimp-floating-sel-to-layer shadow-layer)
(gimp-layer-set-mode shadow-layer MULTIPLY-MODE)
(gimp-edit-copy mask-highlight)
(set! highlight-layer (car (gimp-edit-paste shadow-layer FALSE)))
(gimp-floating-sel-to-layer highlight-layer)
(gimp-layer-set-mode highlight-layer SCREEN-MODE)
(gimp-edit-copy mask)
(set! cast-shadow-layer (car (gimp-edit-paste highlight-layer FALSE)))
(gimp-floating-sel-to-layer cast-shadow-layer)
(gimp-layer-set-mode cast-shadow-layer MULTIPLY-MODE)
(gimp-layer-set-opacity cast-shadow-layer 75)
(plug-in-gauss-rle 1 img cast-shadow-layer feather TRUE TRUE)
(gimp-layer-translate cast-shadow-layer offx offy)
(set! csl-mask (car (gimp-layer-create-mask cast-shadow-layer ADD-BLACK-MASK)))
(gimp-layer-add-mask cast-shadow-layer csl-mask)
(gimp-selection-load mask)
(gimp-context-set-background '(255 255 255))
(gimp-edit-fill csl-mask BACKGROUND-FILL)
(set! inset-layer (car (gimp-layer-copy layer1 TRUE)))
(gimp-image-add-layer img inset-layer 1)
(set! il-mask (car (gimp-layer-create-mask inset-layer ADD-BLACK-MASK)))
(gimp-layer-add-mask inset-layer il-mask)
(gimp-selection-load mask)
(gimp-context-set-background '(255 255 255))
(gimp-edit-fill il-mask BACKGROUND-FILL)
(gimp-selection-none img)
(gimp-selection-none bg-image)
(gimp-levels inset-layer 0 0 255 inset-gamma 0 255)
(gimp-image-remove-channel img mask)
(gimp-image-remove-channel img mask-fat)
(gimp-image-remove-channel img mask-highlight)
(gimp-image-remove-channel img mask-shadow)
(gimp-drawable-set-name layer1 "Carved Surface")
(gimp-drawable-set-name shadow-layer "Bevel Shadow")
(gimp-drawable-set-name highlight-layer "Bevel Highlight")
(gimp-drawable-set-name cast-shadow-layer "Cast Shadow")
(gimp-drawable-set-name inset-layer "Inset")
(gimp-display-new img)
(gimp-image-undo-enable img)
(gimp-context-pop)
)
)
(script-fu-register "script-fu-carve-it"
_"Stencil C_arve..."
"Use the specified [GRAY] drawable as a stencil to carve from the specified image. The specified image must be either RGB colour or grayscale, not indexed."
"Spencer Kimball"
"Spencer Kimball"
"1997"
"GRAY"
SF-IMAGE "Mask image" 0
SF-DRAWABLE "Mask drawable" 0
SF-DRAWABLE _"Image to carve" 0
SF-TOGGLE _"Carve white areas" TRUE
)
(script-fu-menu-register "script-fu-carve-it"
"<Image>/Filters/Decor")
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