fdo#66002 correct error introduced by "AppendAscii cleanup"

This reverts
fix endless loop error: 865b5caf6e2256e06f46a39a86d67f03408718a9
which was a partial revert of
AppendAscii cleanup: b7df3446c373a93dc5b77b495a54d873d83a91a7

AND fixes the original error in "AppendAscii cleanup".

Change-Id: Ida29af046b277170388e4945c0cdb4ec6116be98

1 files changed, 13 insertions, 12 deletions

diff --git a/extensions/source/propctrlr/browserline.cxx b/extensions/source/propctrlr/browserline.cxx
index 03756b2654e1..d88fdadc632d 100644
--- a/extensions/source/propctrlr/browserline.cxx
+++ b/extensions/source/propctrlr/browserline.cxx
@@ -274,18 +274,19 @@ namespace pcr
     {
         if( m_pTheParent )
         {
-            String aText = m_aFtTitle.GetText();
-            while( m_pTheParent->GetTextWidth( aText ) < m_nNameWidth )
-                        aText.AppendAscii("...........");
-
-             // for Issue 69452
-             if (Application::GetSettings().GetLayoutRTL())
-             {
-                 sal_Unicode cRTL_mark = 0x200F;
-                 aText.Append(cRTL_mark);
-             }
-
-             m_aFtTitle.SetText(aText);
+            OUStringBuffer aText( m_aFtTitle.GetText() );
+
+            while( m_pTheParent->GetTextWidth( aText.toString() ) < m_nNameWidth )
+                        aText.append("...........");
+
+            // for Issue 69452
+            if (Application::GetSettings().GetLayoutRTL())
+            {
+                sal_Unicode cRTL_mark = 0x200F;
+                aText.append( OUString(cRTL_mark) );
+            }
+
+            m_aFtTitle.SetText( aText.makeStringAndClear() );
         }
     }