Layout corrections

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@48766 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/richtext/richtextctrl.cpp

@@ -234,7 +234,11 @@ void wxRichTextCtrl::Thaw()
 
     if (m_freezeCount == 0)
     {
-        SetupScrollbars();
+        if (GetBuffer().GetDirty())
+            LayoutContent();
+        else
+            SetupScrollbars();
+
         Refresh(false);
     }
 }
@@ -249,11 +253,9 @@ void wxRichTextCtrl::Clear()
     m_caretAtLineStart = false;
     m_selectionRange.SetRange(-2, -2);
 
-    SetScrollbars(0, 0, 0, 0, 0, 0);
-
     if (m_freezeCount == 0)
     {
-        SetupScrollbars();
+        LayoutContent();
         Refresh(false);
     }
     SendTextUpdatedEvent();