1. wxCommand compilation fixes for Unix

2. added wxTextCtrl sample textctrl
3. fixed handling of wxTE_READONLY and wxTE_PASSWORD flags in wxTextCtrl


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/wxUNIVERSAL@8705 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/univ/textctrl.h

@@ -320,7 +320,14 @@ protected:
     // get the width of the longest line in pixels
     wxCoord GetMaxWidth() const;
 
-    // update the max width if the width of this line is greater than it
+    // force recalculation of the max line width
+    void RecalcMaxWidth()
+    {
+        m_widthMax = -1;
+        (void)GetMaxWidth();
+    }
+
+    // update the max width after the given line was modified
     void UpdateMaxWidth(long line);
 
     // event handlers
@@ -405,6 +412,9 @@ private:
     // the max line length in pixels
     wxCoord m_widthMax;
 
+    // the index of the line which has the length of m_widthMax
+    long m_lineLongest;
+
     // the object to which we delegate our undo/redo implementation
     wxTextCtrlCommandProcessor *m_cmdProcessor;