terminal_interface-curses-putwin.adb

# File : terminal_interface-curses-putwin.adb

    ------------------------------------------------------------------------------
    --                                                                          --
    --                           GNAT ncurses Binding                           --
    --                                                                          --
    --                    Terminal_Interface.Curses.PutWin                      --
    --                                                                          --
    --                                 B O D Y                                  --
    --                                                                          --
    ------------------------------------------------------------------------------
    -- Copyright 2020 Thomas E. Dickey                                          --
    -- Copyright 2000-2002,2003 Free Software Foundation, Inc.                  --
    --                                                                          --
    -- Permission is hereby granted, free of charge, to any person obtaining a  --
    -- copy of this software and associated documentation files (the            --
    -- "Software"), to deal in the Software without restriction, including      --
    -- without limitation the rights to use, copy, modify, merge, publish,      --
    -- distribute, distribute with modifications, sublicense, and/or sell       --
    -- copies of the Software, and to permit persons to whom the Software is    --
    -- furnished to do so, subject to the following conditions:                 --
    --                                                                          --
    -- The above copyright notice and this permission notice shall be included  --
    -- in all copies or substantial portions of the Software.                   --
    --                                                                          --
    -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  --
    -- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               --
    -- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   --
    -- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   --
    -- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    --
    -- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    --
    -- THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               --
    --                                                                          --
    -- Except as contained in this notice, the name(s) of the above copyright   --
    -- holders shall not be used in advertising or otherwise to promote the     --
    -- sale, use or other dealings in this Software without prior written       --
    -- authorization.                                                           --
    ------------------------------------------------------------------------------
    --  Author:  Juergen Pfeifer, 1996
    --  Version Control:
    --  @Revision: 1.5 @
    --  Binding Version 01.00

    with Ada.Streams.Stream_IO.C_Streams;
    with Interfaces.C_Streams;
    with Terminal_Interface.Curses.Aux; use Terminal_Interface.Curses.Aux;

    package body Terminal_Interface.Curses.PutWin is

       package ICS renames Interfaces.C_Streams;
       package ACS renames Ada.Streams.Stream_IO.C_Streams;
       use type C_Int;

       procedure Put_Window (Win  : Window;
                             File : Ada.Streams.Stream_IO.File_Type) is
          function putwin (Win : Window; f : ICS.FILEs) return C_Int;
          pragma Import (C, putwin, "putwin");

          R : constant C_Int := putwin (Win, ACS.C_Stream (File));
       begin
          if R /= Curses_Ok then
             raise Curses_Exception;
          end if;
       end Put_Window;

       function Get_Window (File : Ada.Streams.Stream_IO.File_Type)
                            return Window is
          function getwin (f : ICS.FILEs) return Window;
          pragma Import (C, getwin, "getwin");

          W : constant Window := getwin (ACS.C_Stream (File));
       begin
          if W = Null_Window then
             raise Curses_Exception;
          else
             return W;
          end if;
       end Get_Window;

    end Terminal_Interface.Curses.PutWin;