fix a fatal crash due to using wxHSCROLL presence in m_windowStyle as indicator of whether we wrap lines or not: this didn't work because wxHSCROLL was temporarily reset in wxWindow::Create() and so we used wxTextWrappedData when we only had created wxTextMultiLineData

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45343 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/univ/textctrl.cpp

@@ -650,6 +650,7 @@ void wxTextCtrl::Init()
 
     m_isModified = false;
     m_isEditable = true;
+    m_wrapLines = false;
 
     m_posLast =
     m_curPos =
@@ -695,9 +696,18 @@ bool wxTextCtrl::Create(wxWindow *parent,
         // create data object for normal multiline or for controls with line
         // wrap as needed
         if ( style & wxHSCROLL )
+        {
             m_data.mdata = new wxTextMultiLineData;
-        else
+        }
+        else // we must wrap lines if we don't have horizontal scrollbar
+        {
+            // NB: we can't rely on HasFlag(wxHSCROLL) as the flags can change
+            //     later and even wxWindow::Create() itself temporarily resets
+            //     wxHSCROLL in wxUniv, so remember that we have a wrapped data
+            //     and not just a multi line data in a separate variable
+            m_wrapLines = true;
             m_data.wdata = new wxTextWrappedData;
+        }
     }
     else
     {