fixed bug when the caret wasn't shown if it was hidden when the window got focus the last time

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/wxUNIVERSAL@8563 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/caret.cpp

@@ -132,6 +132,17 @@ void wxCaret::DoShow()
     wxASSERT_MSG( GetWindow(), wxT("caret without window cannot be shown") );
     wxASSERT_MSG( IsOk(), wxT("caret of zero size cannot be shown") );
 
+    // we might not have created the caret yet if we had got the focus first
+    // and the caret was shown later - so do it now if we have the focus but
+    // not the caret
+    if ( !m_hasCaret && (wxWindow::FindFocus() == GetWindow()) )
+    {
+        if ( MSWCreateCaret() )
+        {
+            DoMove();
+        }
+    }
+
     if ( m_hasCaret )
     {
         CALL_CARET_API(ShowCaret, (GetWinHwnd(GetWindow())));