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GIMP Script-Fu Script | 2005-06-30 | 11.4 KB | 407 lines |
- ; The GIMP -- an image manipulation program
- ; Copyright (C) 1995 Spencer Kimball and Peter Mattis
- ;
- ; Weave script --- make an image look as if it were woven
- ; Copyright (C) 1997 Federico Mena Quintero
- ; federico@nuclecu.unam.mx
- ;
- ; 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.
-
-
- ; Copies the specified rectangle from/to the specified drawable
-
- (define (copy-rectangle img
- drawable
- x1
- y1
- width
- height
- dest-x
- dest-y)
- (gimp-rect-select img x1 y1 width height CHANNEL-OP-REPLACE FALSE 0)
- (gimp-edit-copy drawable)
- (let ((floating-sel (car (gimp-edit-paste drawable FALSE))))
- (gimp-layer-set-offsets floating-sel dest-x dest-y)
- (gimp-floating-sel-anchor floating-sel))
- (gimp-selection-none img))
-
- ; Creates a single weaving tile
-
- (define (create-weave-tile ribbon-width
- ribbon-spacing
- shadow-darkness
- shadow-depth)
- (let* ((tile-size (+ (* 2 ribbon-width) (* 2 ribbon-spacing)))
- (darkness (* 255 (/ (- 100 shadow-darkness) 100)))
- (img (car (gimp-image-new tile-size tile-size RGB)))
- (drawable (car (gimp-layer-new img tile-size tile-size RGB-IMAGE
- "Weave tile" 100 NORMAL-MODE))))
- (gimp-image-undo-disable img)
- (gimp-image-add-layer img drawable 0)
-
- (gimp-context-set-background '(0 0 0))
- (gimp-edit-fill drawable BACKGROUND-FILL)
-
- ; Create main horizontal ribbon
-
- (gimp-context-set-foreground '(255 255 255))
- (gimp-context-set-background (list darkness darkness darkness))
-
- (gimp-rect-select img
- 0
- ribbon-spacing
- (+ (* 2 ribbon-spacing) ribbon-width)
- ribbon-width
- CHANNEL-OP-REPLACE
- FALSE
- 0)
-
- (gimp-edit-blend drawable FG-BG-RGB-MODE NORMAL-MODE
- GRADIENT-BILINEAR 100 (- 100 shadow-depth) REPEAT-NONE FALSE
- FALSE 0 0 TRUE
- (/ (+ (* 2 ribbon-spacing) ribbon-width -1) 2) 0 0 0)
-
- ; Create main vertical ribbon
-
- (gimp-rect-select img
- (+ (* 2 ribbon-spacing) ribbon-width)
- 0
- ribbon-width
- (+ (* 2 ribbon-spacing) ribbon-width)
- CHANNEL-OP-REPLACE
- FALSE
- 0)
-
- (gimp-edit-blend drawable FG-BG-RGB-MODE NORMAL-MODE
- GRADIENT-BILINEAR 100 (- 100 shadow-depth) REPEAT-NONE FALSE
- FALSE 0 0 TRUE
- 0 (/ (+ (* 2 ribbon-spacing) ribbon-width -1) 2) 0 0)
-
- ; Create the secondary horizontal ribbon
-
- (copy-rectangle img
- drawable
- 0
- ribbon-spacing
- (+ ribbon-width ribbon-spacing)
- ribbon-width
- (+ ribbon-width ribbon-spacing)
- (+ (* 2 ribbon-spacing) ribbon-width))
-
- (copy-rectangle img
- drawable
- (+ ribbon-width ribbon-spacing)
- ribbon-spacing
- ribbon-spacing
- ribbon-width
- 0
- (+ (* 2 ribbon-spacing) ribbon-width))
-
- ; Create the secondary vertical ribbon
-
- (copy-rectangle img
- drawable
- (+ (* 2 ribbon-spacing) ribbon-width)
- 0
- ribbon-width
- (+ ribbon-width ribbon-spacing)
- ribbon-spacing
- (+ ribbon-width ribbon-spacing))
-
- (copy-rectangle img
- drawable
- (+ (* 2 ribbon-spacing) ribbon-width)
- (+ ribbon-width ribbon-spacing)
- ribbon-width
- ribbon-spacing
- ribbon-spacing
- 0)
-
- ; Done
-
- (gimp-image-undo-enable img)
-
- (list img drawable)))
-
- ; Creates a complete weaving mask
-
- (define (create-weave width
- height
- ribbon-width
- ribbon-spacing
- shadow-darkness
- shadow-depth)
- (let* ((tile (create-weave-tile ribbon-width ribbon-spacing shadow-darkness
- shadow-depth))
- (tile-img (car tile))
- (tile-layer (cadr tile))
- (weaving (plug-in-tile 1 tile-img tile-layer width height TRUE)))
- (gimp-image-delete tile-img)
- weaving))
-
- ; Creates a single tile for masking
-
- (define (create-mask-tile ribbon-width
- ribbon-spacing
- r1-x1
- r1-y1
- r1-width
- r1-height
- r2-x1
- r2-y1
- r2-width
- r2-height
- r3-x1
- r3-y1
- r3-width
- r3-height)
- (let* ((tile-size (+ (* 2 ribbon-width) (* 2 ribbon-spacing)))
- (img (car (gimp-image-new tile-size tile-size RGB)))
- (drawable (car (gimp-layer-new img tile-size tile-size RGB-IMAGE
- "Mask" 100 NORMAL-MODE))))
- (gimp-image-undo-disable img)
- (gimp-image-add-layer img drawable 0)
-
- (gimp-context-set-background '(0 0 0))
- (gimp-edit-fill drawable BACKGROUND-FILL)
-
- (gimp-rect-select img r1-x1 r1-y1 r1-width r1-height CHANNEL-OP-REPLACE FALSE 0)
- (gimp-rect-select img r2-x1 r2-y1 r2-width r2-height CHANNEL-OP-ADD FALSE 0)
- (gimp-rect-select img r3-x1 r3-y1 r3-width r3-height CHANNEL-OP-ADD FALSE 0)
-
- (gimp-context-set-background '(255 255 255))
- (gimp-edit-fill drawable BACKGROUND-FILL)
- (gimp-selection-none img)
-
- (gimp-image-undo-enable img)
-
- (list img drawable)))
-
- ; Creates a complete mask image
-
- (define (create-mask final-width
- final-height
- ribbon-width
- ribbon-spacing
- r1-x1
- r1-y1
- r1-width
- r1-height
- r2-x1
- r2-y1
- r2-width
- r2-height
- r3-x1
- r3-y1
- r3-width
- r3-height)
- (let* ((tile (create-mask-tile ribbon-width ribbon-spacing
- r1-x1 r1-y1 r1-width r1-height
- r2-x1 r2-y1 r2-width r2-height
- r3-x1 r3-y1 r3-width r3-height))
- (tile-img (car tile))
- (tile-layer (cadr tile))
- (mask (plug-in-tile 1 tile-img tile-layer final-width final-height
- TRUE)))
- (gimp-image-delete tile-img)
- mask))
-
- ; Creates the mask for horizontal ribbons
-
- (define (create-horizontal-mask ribbon-width
- ribbon-spacing
- final-width
- final-height)
- (create-mask final-width
- final-height
- ribbon-width
- ribbon-spacing
- 0
- ribbon-spacing
- (+ (* 2 ribbon-spacing) ribbon-width)
- ribbon-width
- 0
- (+ (* 2 ribbon-spacing) ribbon-width)
- ribbon-spacing
- ribbon-width
- (+ ribbon-width ribbon-spacing)
- (+ (* 2 ribbon-spacing) ribbon-width)
- (+ ribbon-width ribbon-spacing)
- ribbon-width))
-
- ; Creates the mask for vertical ribbons
-
- (define (create-vertical-mask ribbon-width
- ribbon-spacing
- final-width
- final-height)
- (create-mask final-width
- final-height
- ribbon-width
- ribbon-spacing
- (+ (* 2 ribbon-spacing) ribbon-width)
- 0
- ribbon-width
- (+ (* 2 ribbon-spacing) ribbon-width)
- ribbon-spacing
- 0
- ribbon-width
- ribbon-spacing
- ribbon-spacing
- (+ ribbon-width ribbon-spacing)
- ribbon-width
- (+ ribbon-width ribbon-spacing)))
-
- ; Adds a threads layer at a certain orientation to the specified image
-
- (define (create-threads-layer img
- width
- height
- length
- density
- orientation)
- (let* ((drawable (car (gimp-layer-new img width height RGBA-IMAGE
- "Threads" 100 NORMAL-MODE)))
- (dense (/ density 100.0)))
- (gimp-image-add-layer img drawable -1)
- (gimp-context-set-background '(255 255 255))
- (gimp-edit-fill drawable BACKGROUND-FILL)
- (plug-in-noisify 1 img drawable FALSE dense dense dense dense)
- (plug-in-c-astretch 1 img drawable)
- (cond ((eq? orientation 'horizontal)
- (plug-in-gauss-rle 1 img drawable length TRUE FALSE))
- ((eq? orientation 'vertical)
- (plug-in-gauss-rle 1 img drawable length FALSE TRUE)))
- (plug-in-c-astretch 1 img drawable)
- drawable))
-
- (define (create-complete-weave width
- height
- ribbon-width
- ribbon-spacing
- shadow-darkness
- shadow-depth
- thread-length
- thread-density
- thread-intensity)
- (let* ((weave (create-weave width height ribbon-width ribbon-spacing
- shadow-darkness shadow-depth))
- (w-img (car weave))
- (w-layer (cadr weave))
-
- (h-layer (create-threads-layer w-img width height thread-length
- thread-density 'horizontal))
- (h-mask (car (gimp-layer-create-mask h-layer ADD-WHITE-MASK)))
-
- (v-layer (create-threads-layer w-img width height thread-length
- thread-density 'vertical))
- (v-mask (car (gimp-layer-create-mask v-layer ADD-WHITE-MASK)))
-
- (hmask (create-horizontal-mask ribbon-width ribbon-spacing
- width height))
- (hm-img (car hmask))
- (hm-layer (cadr hmask))
-
- (vmask (create-vertical-mask ribbon-width ribbon-spacing width height))
- (vm-img (car vmask))
- (vm-layer (cadr vmask)))
-
- (gimp-layer-add-mask h-layer h-mask)
- (gimp-selection-all hm-img)
- (gimp-edit-copy hm-layer)
- (gimp-image-delete hm-img)
- (gimp-floating-sel-anchor (car (gimp-edit-paste h-mask FALSE)))
- (gimp-layer-set-opacity h-layer thread-intensity)
- (gimp-layer-set-mode h-layer MULTIPLY-MODE)
-
- (gimp-layer-add-mask v-layer v-mask)
- (gimp-selection-all vm-img)
- (gimp-edit-copy vm-layer)
- (gimp-image-delete vm-img)
- (gimp-floating-sel-anchor (car (gimp-edit-paste v-mask FALSE)))
- (gimp-layer-set-opacity v-layer thread-intensity)
- (gimp-layer-set-mode v-layer MULTIPLY-MODE)
-
- ; Uncomment this if you want to keep the weaving mask image
- ; (gimp-display-new (car (gimp-image-duplicate w-img)))
-
- (list w-img
- (car (gimp-image-flatten w-img)))))
-
- ; The main weave function
-
- (define (script-fu-weave img
- drawable
- ribbon-width
- ribbon-spacing
- shadow-darkness
- shadow-depth
- thread-length
- thread-density
- thread-intensity)
- (let* ((d-img (car (gimp-drawable-get-image drawable)))
- (d-width (car (gimp-drawable-width drawable)))
- (d-height (car (gimp-drawable-height drawable)))
- (d-offsets (gimp-drawable-offsets drawable))
-
- (weaving (create-complete-weave d-width
- d-height
- ribbon-width
- ribbon-spacing
- shadow-darkness
- shadow-depth
- thread-length
- thread-density
- thread-intensity))
- (w-img (car weaving))
- (w-layer (cadr weaving)))
-
- (gimp-context-push)
-
- (gimp-selection-all w-img)
- (gimp-edit-copy w-layer)
- (gimp-image-delete w-img)
- (let ((floating-sel (car (gimp-edit-paste drawable FALSE))))
- (gimp-layer-set-offsets floating-sel
- (car d-offsets)
- (cadr d-offsets))
- (gimp-layer-set-mode floating-sel MULTIPLY-MODE)
- (gimp-floating-sel-to-layer floating-sel))
-
- (gimp-displays-flush)
-
- (gimp-context-pop)))
-
-
- (script-fu-register "script-fu-weave"
- _"_Weave..."
- "Weave effect like Alien Skin"
- "Federico Mena Quintero"
- "Federico Mena Quintero"
- "June 1997"
- "RGB* GRAY*"
- SF-IMAGE "Image to Weave" 0
- SF-DRAWABLE "Drawable to Weave" 0
- SF-ADJUSTMENT _"Ribbon width" '(30 0 256 1 10 1 1)
- SF-ADJUSTMENT _"Ribbon spacing" '(10 0 256 1 10 1 1)
- SF-ADJUSTMENT _"Shadow darkness" '(75 0 100 1 10 1 1)
- SF-ADJUSTMENT _"Shadow depth" '(75 0 100 1 10 1 1)
- SF-ADJUSTMENT _"Thread length" '(200 0 256 1 10 1 1)
- SF-ADJUSTMENT _"Thread density" '(50 0 100 1 10 1 1)
- SF-ADJUSTMENT _"Thread intensity" '(100 0 100 1 10 1 1))
-
- (script-fu-menu-register "script-fu-weave"
- _"<Image>/Script-Fu/Alchemy")
-