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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:23:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:23:22 +0000
commite42129241681dde7adae7d20697e7b421682fbb4 (patch)
treeaf1fe815a5e639e68e59fabd8395ec69458b3e5e /plug-ins/script-fu/scripts/script-fu-util.scm
parentInitial commit. (diff)
downloadgimp-e42129241681dde7adae7d20697e7b421682fbb4.tar.xz
gimp-e42129241681dde7adae7d20697e7b421682fbb4.zip
Adding upstream version 2.10.22.upstream/2.10.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+; GIMP - The GNU 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 3 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, see <https://www.gnu.org/licenses/>.
+
+; Resizes the image so as to include the selected layer.
+; The resulting image has the selected layer size.
+; Copyright (C) 2002 Chauk-Mean PROUM
+;
+(define (script-fu-util-image-resize-from-layer image layer)
+ (let* (
+ (width (car (gimp-drawable-width layer)))
+ (height (car (gimp-drawable-height layer)))
+ (posx (- (car (gimp-drawable-offsets layer))))
+ (posy (- (cadr (gimp-drawable-offsets layer))))
+ )
+
+ (gimp-image-resize image width height posx posy)
+ )
+)
+
+; Add the specified layers to the image.
+; The layers will be added in the given order below the
+; active layer.
+;
+(define (script-fu-util-image-add-layers image . layers)
+ (while (not (null? layers))
+ (let ((layer (car layers)))
+ (set! layers (cdr layers))
+ (gimp-image-insert-layer image layer 0 -1)
+ (gimp-image-lower-item image layer)
+ )
+ )
+)
+
+; Allow command line usage of GIMP such as:
+;
+; gimp -i -b '(with-files "*.png" <body>)'
+;
+; where <body> is the code that handles whatever processing you want to
+; perform on the files. There are four variables that are available
+; within the <body>: 'basename', 'image', 'filename' and 'layer'.
+; The 'basename' is the name of the file with its extension removed,
+; while the other three variables are self-explanatory.
+; You basically write your code as though it were processing a single
+; 'image' and the 'with-files' macro applies it to all of the files
+; matching the pattern.
+;
+; For example, to invert the colors of all of the PNG files in the
+; start directory:
+;
+; gimp -i -b '(with-files "*.png" (gimp-drawable-invert layer FALSE) \
+; (gimp-file-save 1 image layer filename filename ))'
+;
+; To do the same thing, but saving them as jpeg instead:
+;
+; gimp -i -b '(with-files "*.png" (gimp-drawable-invert layer FALSE) \
+; (gimp-file-save 1 image layer \
+; (string-append basename ".jpg") \
+; (string-append basename ".jpg") ))'
+
+(define-macro (with-files pattern . body)
+ (let ((loop (gensym))
+ (filenames (gensym))
+ (filename (gensym)))
+ `(begin
+ (let ,loop ((,filenames (cadr (file-glob ,pattern 1))))
+ (unless (null? ,filenames)
+ (let* ((filename (car ,filenames))
+ (image (catch #f (car (gimp-file-load RUN-NONINTERACTIVE
+ filename
+ filename ))))
+ (layer (if image (car (gimp-image-get-active-layer image)) #f))
+ (basename (unbreakupstr (butlast (strbreakup filename ".")) ".")))
+ (when image
+ ,@body
+ (gimp-image-delete image)))
+ (,loop (cdr ,filenames))
+ )
+ )
+ )
+ )
+)