terminal_interface-curses-aux.adb

# File : terminal_interface-curses-aux.adb

    ------------------------------------------------------------------------------
    --                                                                          --
    --                           GNAT ncurses Binding                           --
    --                                                                          --
    --                      Terminal_Interface.Curses.Aux                       --
    --                                                                          --
    --                                 B O D Y                                  --
    --                                                                          --
    ------------------------------------------------------------------------------
    -- Copyright (c) 1998 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: 1.10 @
    --  Binding Version 01.00
    ------------------------------------------------------------------------------
    package body Terminal_Interface.Curses.Aux is
       --
       --  Some helpers
       procedure Fill_String (Cp  : in  chars_ptr;
                              Str : out String)
       is
          --  Fill the string with the characters referenced by the
          --  chars_ptr.
          --
          Len : Natural;
       begin
          if Cp /= Null_Ptr then
             Len := Natural (Strlen (Cp));
             if Str'Length < Len then
                raise Constraint_Error;
             end if;
             declare
                S : String (1 .. Len);
             begin
                S := Value (Cp);
                Str (Str'First .. (Str'First + Len - 1)) := S (S'Range);
             end;
          else
             Len := 0;
          end if;

          if Len < Str'Length then
             Str ((Str'First + Len) .. Str'Last) := (others => ' ');
          end if;

       end Fill_String;

       function Fill_String (Cp : chars_ptr) return String
       is
          Len : Natural;
       begin
          if Cp /= Null_Ptr then
             Len := Natural (Strlen (Cp));
             if Len = 0 then
                return "";
             else
                declare
                   S : String (1 .. Len);
                begin
                   Fill_String (Cp, S);
                   return S;
                end;
             end if;
          else
             return "";
          end if;
       end Fill_String;

       procedure Eti_Exception (Code : Eti_Error)
       is
       begin
          case Code is
             when E_Ok              => null;
             when E_System_Error    => raise Eti_System_Error;
             when E_Bad_Argument    => raise Eti_Bad_Argument;
             when E_Posted          => raise Eti_Posted;
             when E_Connected       => raise Eti_Connected;
             when E_Bad_State       => raise Eti_Bad_State;
             when E_No_Room         => raise Eti_No_Room;
             when E_Not_Posted      => raise Eti_Not_Posted;
             when E_Unknown_Command => raise Eti_Unknown_Command;
             when E_No_Match        => raise Eti_No_Match;
             when E_Not_Selectable  => raise Eti_Not_Selectable;
             when E_Not_Connected   => raise Eti_Not_Connected;
             when E_Request_Denied  => raise Eti_Request_Denied;
             when E_Invalid_Field   => raise Eti_Invalid_Field;
             when E_Current         => raise Eti_Current;
          end case;
       end Eti_Exception;

    end Terminal_Interface.Curses.Aux;