+/*!
+ \ingroup GUI
+ \brief Return directory part of the file path.
+
+ If the file path does not include directory part (the file is in the
+ current directory), null string is returned.
+
+ \param path file path
+ \param abs if true (default) \a path parameter is treated as absolute file path
+ \return directory part of the file path
+ */
+namespace XGUI_Tools {
+
+/**
+* Returns directory name from name of file
+* \param path a path to a file
+* \param isAbs is absolute or relative path