+let
+ refine_constraints (must_obj,must_rel,must_sort) (only_obj,only_rel,only_sort)
+=
+ let chosen = ref false in
+ let use_only = ref false in
+ let window =
+ GWindow.window
+ ~modal:true ~title:"Constraints refinement." ~border_width:2 () in
+ let vbox = GPack.vbox ~packing:window#add () in
+ let hbox =
+ GPack.hbox ~packing:(vbox#pack ~expand:false ~fill:false ~padding:5) () in
+ let lMessage =
+ GMisc.label
+ ~text: "\"Only\" constraints can be enforced or not."
+ ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
+ let onlyb =
+ GButton.toggle_button ~label:"Enforce \"only\" constraints"
+ ~active:false ~packing:(vbox#pack ~expand:false ~fill:false ~padding:5)
+ ()
+ in
+ ignore
+ (onlyb#connect#toggled (function () -> use_only := onlyb#active)) ;
+ let hbox =
+ GPack.hbox ~packing:(vbox#pack ~expand:false ~fill:false ~padding:5) () in
+ let lMessage =
+ GMisc.label
+ ~text: "You can now specify the constraints on Rels."
+ ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
+ (* Rel constraints *)
+ let expected_height = 25 * (List.length must_rel + 2) in
+ let height = if expected_height > 400 then 400 else expected_height in
+ let scrolled_window =
+ GBin.scrolled_window ~border_width:10 ~height ~width:600
+ ~packing:(vbox#pack ~expand:true ~fill:true ~padding:5) () in
+ let scrolled_vbox = GPack.vbox ~packing:scrolled_window#add_with_viewport () in
+ let rel_constraints =
+ List.map
+ (function (position,depth) ->
+ let hbox =
+ GPack.hbox
+ ~packing:(scrolled_vbox#pack ~expand:false ~fill:false ~padding:5) () in
+ let lMessage =
+ GMisc.label
+ ~text:position
+ ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
+ match depth with
+ None -> position, ref None
+ | Some depth' ->
+ let mutable_ref = ref (Some depth') in
+ let depthb =
+ GButton.toggle_button ~label:(string_of_int depth')
+ ~active:true ~packing:(hbox#pack ~expand:true ~fill:true ~padding:5)
+ ()
+ in
+ ignore
+ (depthb#connect#toggled
+ (function () ->
+ let sel_depth = if depthb#active then Some depth' else None in
+ mutable_ref := sel_depth
+ )) ;
+ position, mutable_ref
+ ) must_rel in
+ let hbox =
+ GPack.hbox ~packing:(vbox#pack ~expand:false ~fill:false ~padding:5) () in
+ let okb =
+ GButton.button ~label:"Ok"
+ ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
+ let cancelb =
+ GButton.button ~label:"Abort"
+ ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) ()
+ in
+ ignore (window#connect#destroy GMain.Main.quit) ;
+ ignore (cancelb#connect#clicked window#destroy) ;
+ ignore
+ (okb#connect#clicked (function () -> chosen := true ; window#destroy ()));
+ window#set_position `CENTER ;
+ window#show () ;
+ GMain.Main.main () ;
+ if !chosen then
+ let chosen_must_rel =
+ List.map
+(*
+ (function (position,ref_depth) -> position,!ref_depth) rel_constraints
+*)
+(function (position,ref_depth) -> prerr_endline ("### " ^ position ^ " " ^ match !ref_depth with None -> "NULL" | Some d -> string_of_int d) ; position,!ref_depth) rel_constraints
+ in
+ (must_obj,chosen_must_rel,must_sort),
+ (if !use_only then
+(*CSC: ???????????????????????? I assume that must and only are the same... *)
+ only_obj,Some chosen_must_rel,only_sort
+ else
+ None,None,None
+ )
+ else
+ raise NoChoice
+;;
+