Fix wxSTC compilation without wxUSE_DRAG_AND_DROP after r65827.

Correct the changes of r65827 to also compile with wxUSE_DRAG_AND_DROP==0
(especially important for the ports without dnd support such as wxX11 and
wxDFB).

Also do the changes in the correct files, i.e. src/stc/stc.{h,cpp}.in and not
in the generated files themselves to prevent them from being overwritten the
next time gen_iface.py is ran.

Finally keep backwards compatibility as SetDragAllowMove(bool) is a public
method so preserve its old semantics and add a new SetDragFlags() instead of
silently breaking the existing code using SetDragAllowMove().

See #11709.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65840 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/stc/stc.cpp

@@ -595,7 +595,7 @@ void wxStyledTextCtrl::MarkerDefineBitmap(int markerNumber, const wxBitmap& bmp)
         buff[len] = 0;
         SendMsg(2049, markerNumber, (sptr_t)buff);
         delete [] buff;
-
+        
 }
 
 // Add a set of markers to a line.
@@ -1190,7 +1190,7 @@ void wxStyledTextCtrl::RegisterImage(int type, const wxBitmap& bmp) {
         buff[len] = 0;
         SendMsg(2405, type, (sptr_t)buff);
         delete [] buff;
-
+     
 }
 
 // Clear all the registered images.
@@ -4573,8 +4573,8 @@ wxStyledTextEvent::wxStyledTextEvent(wxEventType commandType, int id)
     m_listType = 0;
     m_x = 0;
     m_y = 0;
-    m_dragAllowMove = wxDrag_CopyOnly;
 #if wxUSE_DRAG_AND_DROP
+    m_dragFlags = wxDrag_CopyOnly;
     m_dragResult = wxDragNone;
 #endif
 }
@@ -4608,9 +4608,9 @@ wxStyledTextEvent::wxStyledTextEvent(const wxStyledTextEvent& event):
     m_x =            event.m_x;
     m_y =            event.m_y;
 
-    m_dragText =     event.m_dragText;
-    m_dragAllowMove =event.m_dragAllowMove;
 #if wxUSE_DRAG_AND_DROP
+    m_dragText =     event.m_dragText;
+    m_dragFlags =    event.m_dragFlags;
     m_dragResult =   event.m_dragResult;
 #endif
 }