mirror of https://github.com/GNOME/gimp.git
121 lines
2.8 KiB
Scheme
121 lines
2.8 KiB
Scheme
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; The GIMP -- an image manipulation program
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; Copyright (C) 1995 Spencer Kimball and Peter Mattis
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;
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; This program is free software; you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 2 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program; if not, write to the Free Software
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; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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;
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;
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; waves-anim.scm version 1.00 09/04/97
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;
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; Copyright (C) 1997 Sven Neumann (neumanns@uni-duesseldorf.de)
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;
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;
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; Makes a copy of your image and creates an animation of the active layer
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; as if a stone was thrown into the image. The animation may be saved with
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; the gif-plug-in.
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(define (script-fu-waves-anim img
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drawable
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amplitude
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wavelength
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num-frames
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invert)
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(let* ((amplitude (max 0 amplitude))
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(wavelength (max 0 wavelength))
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(num-frames (max 1 num-frames))
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(remaining-frames num-frames)
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(phase 0)
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(phaseshift (/ 360 num-frames))
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(image (car (gimp-channel-ops-duplicate img))))
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(gimp-image-disable-undo image)
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(if (= invert TRUE)
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(set! phaseshift (- 0 phaseshift)))
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(set! source-layer (car (gimp-image-get-active-layer image)))
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(while (> remaining-frames 1)
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(set! waves-layer (car (gimp-layer-copy source-layer TRUE)))
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(gimp-layer-set-preserve-trans waves-layer FALSE)
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(gimp-image-add-layer image waves-layer -1)
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(set! layer-name (string-append "Frame "
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(number->string
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(- (+ num-frames 2)
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remaining-frames) 10)))
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(gimp-layer-set-name waves-layer layer-name)
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(plug-in-waves 1
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image
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waves-layer
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amplitude
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phase
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wavelength
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0
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FALSE)
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(set! remaining-frames (- remaining-frames 1))
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(set! phase (- phase phaseshift)))
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(gimp-layer-set-name source-layer "Frame 1")
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(plug-in-waves 1
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image
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source-layer
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amplitude
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phase
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wavelength
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0
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FALSE)
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(gimp-image-enable-undo image)
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(gimp-display-new image)))
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(script-fu-register "script-fu-waves-anim"
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"<Image>/Script-Fu/Animators/Waves"
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"Animate an image like a stone's been thrown into it"
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"Sven Neumann (neumanns@uni-duesseldorf.de)"
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"Sven Neumann"
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"09/04/1997"
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"RGB RGBA GRAY GRAYA"
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SF-IMAGE "Image" 0
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SF-DRAWABLE "Drawable" 0
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SF-VALUE "Amplitude" "10"
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SF-VALUE "Wavelength" "10"
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SF-VALUE "Number of Frames" "6"
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SF-TOGGLE "Invert direction" FALSE)
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