Reporter: LonelyPixel
[Submitted to the original trac issue database at 6.50pm, Friday, 9th January 2009]

When I confirm the preferences dialogue, Merkaartor only speaks in
English to me from then on. Before that and after a restart of the
application, it usually speaks in German (my UI default). The problem is
that it won't find my translation files. In MainWindow::updateLanguage()
it only looks in the current directory, but that has oft proven to be in
some distant galaxy. This patch adds the application executable's
directory as a default, like the Qt library's function is the default
for the Qt system language. Additionally, it displays an error message
if a language couldn't be found - and won't change anything (i.e.
install that null pointer language).

This patch basically keeps the language setting for my Merkaartor
version, which it wouldn't do alone. This may be specific to my build
procedure though and may not happen in other builds or platforms. But
then again, I believe that it doesn't harm.

I've been notified that not setting TRANSDIR_MERKAARTOR for qmake is the problem. But as a Windows user, I cannot specify a translation files location before the application has been installed on the target computer. So there must be a deterministic default for Windows, which in turn does not break things on other platforms. Since the current directory is never a reasonable place to look translation files for, the path to the application executable is still better.