Hi Saul,
Many thanks for instant help.
> > I'm trying to figure ut if there's any way that choices made by
> > user in dialog widgets can be remembered and used as values
> > of those widgets next time dialog runs.
> That is precisely how script dialogs currently behave; the last
> used values are presented. These last values will be reset to
> their original default values if 1) Script-fu is refreshed
> ("Filters->Script-fu->Refresh Scripts") or 2) GIMP is restarted.
Sorry, I mis-stated my problem. I'd like dialog to come up with same
widget values next time GIMP is started up.
...(snip)...
> Tick quoting does not result in evaluation of the list elements.
> Use 'list' so that WRF_BIT_WIDTH gets evaluated and replaced by
> its numeric value:
Thanks, I think it I read that bit in the Scheme manual and forgot
it.
...(snip)...
> If, however, the issue you are attempting to address is having the
> last values retained across sessions (or survive a Script
> Refresh), this would be possible by storing your script's last
> values in the <gimpdir>/parasiterc file:
(define (script-fu-woodrat image drawable bit-width)
; Substitute function owing to buggy parasite-attach behavior
(define (fu-parasite-attach parasite)
(gimp-parasite-attach parasite)
(while (not (string=? (caddr parasite)
(caddar (gimp-parasite-find (car
parasite)))))
(gimp-parasite-attach parasite)))
; Save the user-specified bit-width to an application parasite
(fu-parasite-attach (list "WRF_BIT_WIDTH" 1 (number->string bit-
width)))
...
)
(script-fu-register "script-fu-woodrat"
:
:
:
SF-IMAGE ...
SF-DRAWABLE ...
SF-VALUE "Bit width"
(catch
17 ; fallback value if first-time run
(string->number (caddar (gimp-parasite-find
"WRF_BIT_WIDTH")))
)
> Note that 'gimp-parasite-find' is only executed once: when GIMP is
> initially loaded (or if scripts are refreshed). Even though the
> parasite is saved every time the script is executed, it is
> actually GIMP's internally stored last value (not the parasite)
> that is used in determining the value for the 'bit-width'
> parameter. The only reason you'd want to take these steps is to
> support last values across different sessions. The behavior you
> desired (as expressed in the first paragraph of your post) is
> already supported by GIMP.
Sorry, mis-stated by requirement.
parasites are just what I need. Can't find much about them.
(list "WRF_BIT_WIDTH" 1 (number->string bit-width)))
First list member: parasite ID string.
What's the second list member? Flags, I understand from one search
result I found. Used?
Third list member: parasite value (must always be a string). So an
RGB colour value would have to be stringified. unstrbreakup maybe?
Generally: do all the gimp-*-parasite-attach methods suffer from same
bug, so should be reapplied til they work?
Yrs,
Alan
Public speaking is very easy.
-- Vice President Dan Quayle
to reporters in 10/88
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