release/src/router/libncurses/Ada95/samples/sample-form_demo-handler.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                       GNAT ncurses Binding Samples                       --
   4 --                                                                          --
   5 --                          Sample.Form_Demo.Handler                        --
   6 --                                                                          --
   7 --                                 B O D Y                                  --
   8 --                                                                          --
   9 ------------------------------------------------------------------------------
  10 -- Copyright (c) 1998-2004,2009 Free Software Foundation, Inc.              --
  11 --                                                                          --
  12 -- Permission is hereby granted, free of charge, to any person obtaining a  --
  13 -- copy of this software and associated documentation files (the            --
  14 -- "Software"), to deal in the Software without restriction, including      --
  15 -- without limitation the rights to use, copy, modify, merge, publish,      --
  16 -- distribute, distribute with modifications, sublicense, and/or sell       --
  17 -- copies of the Software, and to permit persons to whom the Software is    --
  18 -- furnished to do so, subject to the following conditions:                 --
  19 --                                                                          --
  20 -- The above copyright notice and this permission notice shall be included  --
  21 -- in all copies or substantial portions of the Software.                   --
  22 --                                                                          --
  23 -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  --
  24 -- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               --
  25 -- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   --
  26 -- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   --
  27 -- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    --
  28 -- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    --
  29 -- THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               --
  30 --                                                                          --
  31 -- Except as contained in this notice, the name(s) of the above copyright   --
  32 -- holders shall not be used in advertising or otherwise to promote the     --
  33 -- sale, use or other dealings in this Software without prior written       --
  34 -- authorization.                                                           --
  35 ------------------------------------------------------------------------------
  36 --  Author:  Juergen Pfeifer, 1996
  37 --  Version Control
  38 --  $Revision: 1.14 $
  39 --  $Date: 2009/12/26 17:38:58 $
  40 --  Binding Version 01.00
  41 ------------------------------------------------------------------------------
  42 with Sample.Form_Demo.Aux;
  43
  44 package body Sample.Form_Demo.Handler is
  45
  46    package Aux renames Sample.Form_Demo.Aux;
  47
  48    procedure Drive_Me (F     : Form;
  49                        Title : String := "")
  50    is
  51       L : Line_Count;
  52       C : Column_Count;
  53       Y : Line_Position;
  54       X : Column_Position;
  55    begin
  56       Aux.Geometry (F, L, C, Y, X);
  57       Drive_Me (F, Y, X, Title);
  58    end Drive_Me;
  59
  60    procedure Drive_Me (F     : Form;
  61                        Lin   : Line_Position;
  62                        Col   : Column_Position;
  63                        Title : String := "")
  64    is
  65       Pan : Panel := Aux.Create (F, Title, Lin, Col);
  66       V   : Cursor_Visibility := Normal;
  67       Handle_CRLF : Boolean := True;
  68
  69    begin
  70       Set_Cursor_Visibility (V);
  71       if Aux.Count_Active (F) = 1 then
  72          Handle_CRLF := False;
  73       end if;
  74       loop
  75          declare
  76             K : constant Key_Code := Aux.Get_Request (F, Pan, Handle_CRLF);
  77             R : Driver_Result;
  78          begin
  79             if (K = 13 or else K = 10) and then not Handle_CRLF then
  80                R := Unknown_Request;
  81             else
  82                R := Driver (F, K);
  83             end if;
  84             case R is
  85                when Form_Ok => null;
  86                when Unknown_Request =>
  87                   if My_Driver (F, K, Pan) then
  88                      exit;
  89                   end if;
  90                when others => Beep;
  91             end case;
  92          end;
  93       end loop;
  94       Set_Cursor_Visibility (V);
  95       Aux.Destroy (F, Pan);
  96    end Drive_Me;
  97
  98 end Sample.Form_Demo.Handler;