move Ellipsize() to wxControl so it can be easily used by other controls

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57625 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/control.h

@@ -24,6 +24,13 @@
 
 extern WXDLLIMPEXP_DATA_CORE(const char) wxControlNameStr[];
 
+enum wxEllipsizeMode
+{
+    wxELLIPSIZE_START,
+    wxELLIPSIZE_MIDDLE,
+    wxELLIPSIZE_END
+};
+
 // ----------------------------------------------------------------------------
 // wxControl is the base class for all controls
 // ----------------------------------------------------------------------------
@@ -67,6 +74,10 @@ public:
 
     // static utilities:
 
+    // replaces parts of the string with ellipsis if needed
+    static wxString Ellipsize(const wxString& label, const wxDC& dc,
+                              wxEllipsizeMode mode, int maxWidth);
+
     // get the string without mnemonic characters ('&')
     static wxString GetLabelText(const wxString& label);