Hello,
I am currently working on a script-fu to provide previews of the more popular
plug-ins with varying parameters. The script takes a list of images
(blur.png, iir.png, rle.png, despeckle.png etc.), applies the respective
plug-in with varying parameters and writes blur1.png, blur2.png, ...,
blur(n).png, iir1.png, iir2.png, ..., iir(m).png etc., along with a file
that records which filter/parameters were used for which image, for example:
blur1.png: filter Blur Percent 20 Count 5
blur2.png: filter Blur Percent 40 Count 10
...
iir1.png: filter "Gaussian Blur (IIR)" Radius 3 Horizontal 7 Vertical 5
...
edge.png: filter Edge Amount 2 "Wrap Mode" SMEAR Algorithm Differential
The thing is: The "print" command ("(print "test")" ) is not working for me in
batch-mode (Gimp 2.0.2). It does what it should on the Script-FU console, but
shows no output when used like
gimp -c -i -d -b '(filter-previews)' '(gimp-quit 0)'
A more simple case: When I create this file ("testprint.scm") in
~/gimp-2.0/script/:
(define (testprint)
(print "this is a test"))
and invoke
gimp -c -i -d -b '(testprint)' '(gimp-quit 0)'
I get:
batch command: executed successfully.
(and nothing else)
Is this a bug?
Another question: Can I - in Gimp-scheme - define the C-equivalent to
variables declared "static" (at global, not procedural, level), that is,
variables that are global (i.e., visible in all procedures), but only in a
particular file?
If not, can I declare variables that are *global*? How?
I need this for the mapping of filters <---> respective input-files, for
example, I could use this:
file_for_blur: blur.png
file_for_iir: iir.png
I know that I can always use "define", like
(define (blur-file) (set! return "blur.png"))
but that would not (really?) allow constructs like:
file_for_blur: blur.png
file_for_blur: blur_changed_my_mind_use_this_instead_but_keep_other_too.png
file_for_blur: use_yet_another.png
that is, set the variable to a different value on the fly (without the need to
comment out anything).
Moreover, does there exist reference documentation for basic Gimp-Scheme
things (tutorials aside), like string-append etc.? Some standard
Lisp-functions don't seem to be implemented ("nth" for example) Should I add
some? Which ones?
Markus.
