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--                     Copyright (C) 2001-2018, AdaCore                     --
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--  This package enables the user to connect Undo / Redo buttons to a
--  queue of commands

with Gtk.Widget;   use Gtk.Widget;

package Commands.Controls is

   type Undo_Redo_Information is record
      Queue : Commands.Command_Queue;
      --  The queue from which undo and redo information is read
   end record;

   type Undo_Redo is access Undo_Redo_Information;

   procedure Set_Undo_Redo_Queue (Queue  : Command_Queue; UR : Undo_Redo);
   --  Associate the state of Queue to the buttons:
   --  The sensitivity of Undo/Redo widgets (named "controls")
   --  indicate the presence of actions in the corresponding Undo/Redo Queues.
   --  Activating the controls executes the first action in the corresponding
   --  queue.

   procedure Unset_Undo_Redo_Queue (UR : Undo_Redo);
   --  Disconnect any controls that are connected to Command.

end Commands.Controls;
