[Libreoffice] stucked with a bug

Hi!

I've been having fun with Bug 33794 
<https://bugs.freedesktop.org/show_bug.cgi?id=33794> for a while. In 
some translations the Open button's text on LibreOffice start window is 
overlapped by the small triangle symbol on the right of the open button 
which is for recent files popup menu.

The problem is that the width of the symbol on the open button is not 
taken into account at calculation of overall button width. Those buttons 
on the start window come from vcl module (ImageButton, MenuButton. In 
the function which lays them out they are passed as PushButton&).

To solve this issue I have to find a way somehow to extract dynamically 
this symbol width information in code. I figured out that I can get it 
by functions Button::ImplGetSymbolRect().getWidth() but unfortunately it 
gives a kind of uninitialized value ( -32767 ) during the whole creation 
of start window I don't know why. (If I call these functions after the 
the start window showed up, they give the right information I've checked 
it.)

I've got stucked at this point. I would really appreciate some help.

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- The code of the start window is implemented in the 
backingwindow.hxx/cxx in framework module.
- Each button is layed out in BackingWindow::initControls() by 
BackingWindow::layoutButton() function.
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Thank's,
Dávid