home *** CD-ROM | disk | FTP | other *** search
GIMP Script-Fu Script | 2005-06-30 | 7.1 KB | 248 lines |
- ; The GIMP -- an image manipulation program
- ; Copyright (C) 1995 Spencer Kimball and Peter Mattis
- ;
- ; 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.
- ;
- ;
- ; slide.scm version 0.41 2004/03/28
- ;
- ; CHANGE-LOG:
- ; 0.20 - first public release
- ; 0.30 - some code cleanup
- ; now uses the rotate plug-in to improve speed
- ; 0.40 - changes to work with gimp-1.1
- ; if the image was rotated, rotate the whole thing back when finished
- ; 0.41 - changes to work with gimp-2.0, slightly correct text offsets,
- ; Nils Philippsen <nphilipp@redhat.com> 2004/03/28
- ;
- ; !still in development!
- ; TODO: - change the script so that the film is rotated, not the image
- ; - antialiasing
- ; - make 'add background' an option
- ; - ?
- ;
- ; Copyright (C) 1997-1999 Sven Neumann <sven@gimp.org>
- ;
- ; makes your picture look like a slide
- ;
- ; The script works on RGB and grayscale images that contain only
- ; one layer. The image is cropped to fit into an aspect ratio of 1:1,5.
- ; It creates a copy of the image or can optionally work on the original.
- ; The script uses the current background color to create a background
- ; layer.
-
-
- (define (crop width height ratio)
- (cond ((>= width (* ratio height)) (* ratio height))
- ((< width (* ratio height)) width)))
-
-
- (define (script-fu-slide img
- drawable
- text
- number
- fontname
- font-color
- work-on-copy)
- (let* ((type (car (gimp-drawable-type-with-alpha drawable)))
- (image (cond ((= work-on-copy TRUE)
- (car (gimp-image-duplicate img)))
- ((= work-on-copy FALSE)
- img)))
- (owidth (car (gimp-image-width image)))
- (oheight (car (gimp-image-height image)))
- (ratio (if (>= owidth oheight) (/ 3 2)
- (/ 2 3)))
- (crop-width (crop owidth oheight ratio))
- (crop-height (/ crop-width ratio))
- (width (* (max crop-width crop-height) 1.05))
- (height (* (min crop-width crop-height) 1.5))
- (hole-width (/ width 20))
- (hole-space (/ width 8))
- (hole-height (/ width 12))
- (hole-radius (/ hole-width 4))
- (hole-start (- (/ (rand 1000) 1000) 0.5))
- (film-layer (car (gimp-layer-new image
- width
- height
- type
- "Film"
- 100
- NORMAL-MODE)))
- (bg-layer (car (gimp-layer-new image
- width
- height
- type
- "Background"
- 100
- NORMAL-MODE)))
- (pic-layer (car (gimp-image-get-active-drawable image)))
- (numbera (string-append number "A")))
-
- (gimp-context-push)
-
- (gimp-image-undo-disable image)
-
- ; add an alpha channel to the image
- (gimp-layer-add-alpha pic-layer)
-
- ; crop, resize and eventually rotate the image
- (gimp-image-crop image
- crop-width
- crop-height
- (/ (- owidth crop-width) 2)
- (/ (- oheight crop-height) 2))
- (gimp-image-resize image
- width
- height
- (/ (- width crop-width) 2)
- (/ (- height crop-height) 2))
- (if (< ratio 1) (plug-in-rotate 1
- image
- pic-layer
- 1
- FALSE))
-
- ; add the background layer
- (gimp-drawable-fill bg-layer BACKGROUND-FILL)
- (gimp-image-add-layer image bg-layer -1)
-
- ; add the film layer
- (gimp-context-set-background '(0 0 0))
- (gimp-drawable-fill film-layer BACKGROUND-FILL)
- (gimp-image-add-layer image film-layer -1)
-
- ; add the text
- (gimp-context-set-foreground font-color)
- (gimp-floating-sel-anchor (car (gimp-text-fontname image
- film-layer
- (+ hole-start (* -0.25 width))
- (* 0.01 height)
- text
- 0
- TRUE
- (* 0.040 height) PIXELS fontname)))
- (gimp-floating-sel-anchor (car (gimp-text-fontname image
- film-layer
- (+ hole-start (* 0.75 width))
- (* 0.01 height)
- text
- 0
- TRUE
- (* 0.040 height) PIXELS
- fontname )))
- (gimp-floating-sel-anchor (car (gimp-text-fontname image
- film-layer
- (+ hole-start (* 0.35 width))
- 0.0
- number
- 0
- TRUE
- (* 0.050 height) PIXELS
- fontname )))
- (gimp-floating-sel-anchor (car (gimp-text-fontname image
- film-layer
- (+ hole-start (* 0.35 width))
- (* 0.94 height)
- number
- 0
- TRUE
- (* 0.050 height) PIXELS
- fontname )))
- (gimp-floating-sel-anchor (car (gimp-text-fontname image
- film-layer
- (+ hole-start (* 0.85 width))
- (* 0.945 height)
- numbera
- 0
- TRUE
- (* 0.045 height) PIXELS
- fontname )))
-
- ; create a mask for the holes and cut them out
- (let* ((film-mask (car (gimp-layer-create-mask film-layer ADD-WHITE-MASK)))
- (hole hole-start)
- (top-y (* height 0.06))
- (bottom-y(* height 0.855)))
-
- (gimp-layer-add-mask film-layer film-mask)
-
- (gimp-selection-none image)
- (while (< hole 8)
- (gimp-rect-select image
- (* hole-space hole)
- top-y
- hole-width
- hole-height
- CHANNEL-OP-ADD
- FALSE
- 0)
- (gimp-rect-select image
- (* hole-space hole)
- bottom-y
- hole-width
- hole-height
- CHANNEL-OP-ADD
- FALSE
- 0)
- (set! hole (+ hole 1)))
-
- (gimp-context-set-foreground '(0 0 0))
- (gimp-edit-fill film-mask BACKGROUND-FILL)
- (gimp-selection-none image)
- (plug-in-gauss-rle 1 image film-mask hole-radius TRUE TRUE)
- (gimp-threshold film-mask 127 255)
-
- (gimp-layer-remove-mask film-layer MASK-APPLY))
-
- ; reorder the layers
- (gimp-image-raise-layer image pic-layer)
- (gimp-image-raise-layer image pic-layer)
-
- ; eventually rotate the whole thing back
- (if (< ratio 1)
- (plug-in-rotate 1
- image
- pic-layer
- 3
- TRUE))
-
- ; clean up after the script
- (gimp-selection-none image)
- (gimp-image-undo-enable image)
- (if (= work-on-copy TRUE)
- (gimp-display-new image))
- (gimp-displays-flush)
-
- (gimp-context-pop)))
-
- (script-fu-register "script-fu-slide"
- _"_Slide..."
- "Gives the image the look of a slide"
- "Sven Neumann <sven@gimp.org>"
- "Sven Neumann"
- "2004/03/28"
- "RGB GRAY"
- SF-IMAGE "Image" 0
- SF-DRAWABLE "Drawable" 0
- SF-STRING _"Text" "The GIMP"
- SF-STRING _"Number" "32"
- SF-FONT _"Font" "Serif"
- SF-COLOR _"Font color" '(255 180 0)
- SF-TOGGLE _"Work on copy" TRUE)
-
- (script-fu-menu-register "script-fu-slide"
- _"<Image>/Script-Fu/Decor")
-