[PD-dev] [ pure-data-Patches-3065242 ] tcl-error when modifying subpatch with hidden parentwindow

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Patches item #3065242, was opened at 2010-09-13 08:00
Message generated for change (Comment added) made by eighthave
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>Category: puredata
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: IOhannes m zmlnig (zmoelnig)
Assigned to: Miller Puckette (millerpuckette)
Summary: tcl-error when modifying subpatch with hidden parentwindow

Initial Comment:
i get tcl-errors when editing a subpatch in a GOP-enabled abstraction that has it's window closed.
currently i haven't found any real consequences except for the annoying error-lines in the pd-console.

cause of the bug:
Pd tries to make the title of the abstraction-window reflect the "modified" state, but since there is no such window tcl throws an error.

steps to reproduce:
- i have an abstraction that has GOP enabled. all the code is in a subpatch of this abstraction. finally, i have a pristine instance of this abstraction in my patch.
- i open the abstraction
- i open the subpatch in the abstraction
- i close the abstraction window
- i edit the contents of the subpatch
- pd-console shows an error:

(Tcl) UNHANDLED ERROR: bad window path name ".x8f67d30"
    while executing
"wm title $mytoplevel "$name$dirtychar$arguments - $path" "
    (procedure "pdtk_canvas_reflecttitle" line 11)
    invoked from within
"pdtk_canvas_reflecttitle .x8f67d30 {/Net/iem/Benutzer/zmoelnig/src/git/pure-data} {abstraction.pd} {} 1"
    ("uplevel" body line 3)
    invoked from within
"uplevel #0 $cmd_from_pd"



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>Comment By: Hans-Christoph Steiner (eighthave)
Date: 2010-09-14 01:30

Message:
A given $mytoplevel window is not guaranteed to be visible when
pdtk_canvas_reflecttitle is called, so skip setting the title if
$mytoplevel does not exist.

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Comment By: IOhannes m zmlnig (zmoelnig)
Date: 2010-09-13 08:00

Message:
btw, this does not happen if the abstraction is not GOP-enabled

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