progress window is not locale aware, fails at UTF-8 filenames

[Andreas Metzler]

Hello,

This is <http://bugs.debian.org/786938> reported by Vangelis Skarmoutsos against 2015.0.0 beta2:
---- quote
When pressing the "Create control points" button, a window pops up which
shows informational details of the procedure.
In this window, if some directory names are not english (they were greek in
my case) the non english letters are not readable and some strange symbols
appear in their place.
---- unquote

I have doublechecked this and afaict the progress window interprets an UTF-8 encoded filename as ISO-8859-1 (Umlaut u ("ü") displayed as ü). See attached screenshot.

FWIW I have also tried it the other way round: Start a xterm with env LC_ALL=de_AT (latin1, not UTF-8!), generate a directory with latin1 filename, and point hugin there. Hugin is not able to add images in such a directory
ERROR: caught exception:
Precondition violation!
Unable to open file ''.
(/build/libvigraimpex-WjlfM8/libvigraimpex-1.9.0+dfsg/src/impex/codecmanager.cxx:203)

cu Andreas

[Andreas Metzler (k-launchpad-downhill-at-eu-org)]

Hello,

I wrote: "FWIW I have also tried it the other way round [...]".

This side-issue seems to be already tracked in https://bugs.launchpad.net/hugin/+bug/678808

cu Andreas

[tmodes (tmodes)]

I can't reproduce the issue.
The progress window shows here the special characters (tested with LANG=de_DE.utf-8, but also with en_GB.utf-8)

Could you test if the issue is cpfind (alone, in a terminal) or reading the output of cpfind in Hugin?

[tmodes (tmodes)]

Some more testing revealed that the bug happens only with wxWidgets 3.0 (on wxWidgets 2.8 it works, see screenshot 2).
This is a bug in the underlying wxWidgets implementation of wxTextInputStream (see http://trac.wxwidgets.org/ticket/14720). Implemented a workaround by explicit setting the correct conversion in changeset b0d4a660cf3a.