Implement auto complete in generic wxSearchCtrl

Just forward the relevant methods to the embedded wxTextCtrl.

Closes #17519.

docs/changes.txt

@@ -81,6 +81,7 @@ All (GUI):
 - Make wxDataViewCtrl::Expand() expand ancestors in native ports too.
 - Add wxDataViewCtrl::SetHeaderAttr().
 - Add wxListCtrl::SetHeaderAttr().
+- Implement auto complete in generic wxSearchCtrl (Eric Jensen).
 
 wxGTK:
 

include/wx/generic/srchctlg.h

@@ -166,6 +166,11 @@ public:
     virtual void SelectAll() wxOVERRIDE;
     virtual void SetEditable(bool editable) wxOVERRIDE;
 
+    // Autocomplete
+    virtual bool DoAutoCompleteStrings(const wxArrayString &choices) wxOVERRIDE;
+    virtual bool DoAutoCompleteFileNames(int flags) wxOVERRIDE;
+    virtual bool DoAutoCompleteCustom(wxTextCompleter *completer) wxOVERRIDE;
+
 #if 0
 
     // override streambuf method

src/generic/srchctlg.cpp

@@ -820,6 +820,24 @@ bool wxSearchCtrl::SetBackgroundColour(const wxColour& colour)
     return true;
 }
 
+
+// Autocomplete
+bool wxSearchCtrl::DoAutoCompleteStrings(const wxArrayString &choices)
+{
+    return m_text->AutoComplete( choices );
+}
+
+bool wxSearchCtrl::DoAutoCompleteFileNames(int flags)
+{
+    return flags == wxFILE ? m_text->AutoCompleteFileNames() : m_text->AutoCompleteDirectories();
+}
+
+bool wxSearchCtrl::DoAutoCompleteCustom(wxTextCompleter *completer)
+{
+    return m_text->AutoComplete(completer);
+}
+
+
 // search control generic only
 void wxSearchCtrl::SetSearchBitmap( const wxBitmap& bitmap )
 {