Hi,
I checked your script a little. I have to admit, that I don't know
scheme very much, because I don't like LISP very much (Lots of
Irritating Superfluous Parentheses). I rather work with perl-gimp. But
there is an error in your script. Scheme has a built-in function cons.
Cons needs two arguments. There is only given one:
(if (= tmp TRUE)
(set! viewable (append viewable (cons (aref all-layers
(- i 1))
To make it clearer: The one argument is: aref all-layers (- i 1)
I don't know which argument to give as second. It would take me a while
to figure it out.
One other thing is disturbing: In the register-function isn't given if
it is a stand allone script or if it should work on an image. I assumed
it should work on an image.
To test your script I set: Image/Script-Fu/_Copy mask
.
May be in special cases, the function aref provides twp arguments for
cons, for example if you have sufficient layers and layer masks, but in
others it doesn*t. Anyhow the error isn't caught.
I am working with LINUX, so you see that the error is OS-Independent.
Greetings
Bernd
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Message: 1
Date: Sun, 28 Sep 2008 00:03:52 -0400
From: Adonj Adonj [EMAIL PROTECTED]
Subject: [Gimp-user] script-fu plugin
To: gimp-user@lists.XCF.Berkeley.EDU
gimp-user@lists.xcf.berkeley.edu
Message-ID: [EMAIL PROTECTED]
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I'm using gimp2.4.7 in windows XP. I copied a script-fu plugin I found to my
C:\Program Files\GIMP-2.0\lib\gimp\2.0\plug-ins, which should
copy a layer mask to multiple layers or apply a layer mask to multiple
layers.
I get an error each time I make an attempt to use it, which states:
Error: cons: needs 2 argument(s)
I'm not familiar with the script. Could there be a simple solution to that?
Here is the script:
; 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.
(define (script-fu-copy-mask-to-layers image drawable)
(define (visible-layers img)
(let* (
(all-layers (gimp-image-get-layers img))
(i (car all-layers))
(viewable ())
(tmp FALSE))
(set! all-layers (cadr all-layers))
(while ( i 0)
(set! tmp (car (gimp-drawable-get-visible (aref
all-layers (- i 1)
(if (= tmp TRUE)
(set! viewable (append viewable (cons (aref all-layers
(- i 1))
(set! i (- i 1)))
viewable))
(let* (
(active-layer (car (gimp-image-get-active-layer image)))
(source-layer)
(source-mask)
(layers)
(mask))
(set! layers (visible-layers image))
(gimp-image-undo-group-start image)
(set! source-layer (car (gimp-layer-new-from-drawable
active-layer image)))
(gimp-image-add-layer image source-layer -1)
(set! source-mask (car (gimp-layer-get-mask source-layer)))
(if (= source-mask -1)
(begin
(set! source-mask (car (gimp-layer-create-mask
source-layer ADD-COPY-MASK)))
(gimp-layer-add-mask source-layer source-mask)))
(while (car layers)
(if (= (car (gimp-layer-get-mask (car layers))) -1)
(if (= (car (gimp-drawable-has-alpha (car layers))) 1)
(set! mask (car (gimp-layer-add-mask (car layers)
source-mask)
(set! layers (cdr layers)))
(gimp-image-remove-layer image source-layer)
(gimp-image-undo-group-end image)
(gimp-displays-flush)))
(script-fu-register script-fu-copy-mask-to-layers
/Script-Fu/_Copy mask
Copy the mask from the current layer to all visible layers
Saul
