ensure that wxToolBar has one of wxTB_TOP/LEFT/RIGHT/BOTTOM styles set, otherwise the latest toolbar positioning code breaks down

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42840 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/tbarbase.cpp

@@ -123,6 +123,15 @@ wxToolBarBase::wxToolBarBase()
     m_defaultHeight = 15;
 }
 
+void wxToolBarBase::FixupStyle()
+{
+    if ( !HasFlag(wxTB_TOP | wxTB_LEFT | wxTB_RIGHT | wxTB_BOTTOM) )
+    {
+        // this is the default
+        m_windowStyle |= wxTB_TOP;
+    }
+}
+
 wxToolBarToolBase *wxToolBarBase::DoAddTool(int id,
                                             const wxString& label,
                                             const wxBitmap& bitmap,