wxTextCtrl:

1. now only scroll the visible text, not the entire text rect
2. don't draw the columns before the leftmost (visible) one


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/wxUNIVERSAL@8443 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/univ/textctrl.h

@@ -291,10 +291,11 @@ private:
     // the rectangle (in client coordinates) to draw text inside
     wxRect m_rectText;
 
-    // for the controls without horz scrollbar: the offset by which the window
-    // is scrolled to the right and the first visible position
+    // for the controls without horz scrollbar only: the position of the first
+    // and last visible pixels and the first visible column
+    wxCoord m_ofsHorz,
+            m_posLastVisible;
     long m_colStart;
-    wxCoord m_ofsHorz;
 
     DECLARE_EVENT_TABLE()
     DECLARE_DYNAMIC_CLASS(wxTextCtrl)