release/src/router/libncurses/Ada95/samples/ncurses2-flushinp_test.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                       GNAT ncurses Binding Samples                       --
   4 --                                                                          --
   5 --                                 ncurses                                  --
   6 --                                                                          --
   7 --                                 B O D Y                                  --
   8 --                                                                          --
   9 ------------------------------------------------------------------------------
  10 -- Copyright (c) 2000 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: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
  37 --  Version Control
  38 --  $Revision: 1.1 $
  39 --  Binding Version 01.00
  40 ------------------------------------------------------------------------------
  41 with Terminal_Interface.Curses; use Terminal_Interface.Curses;
  42 with ncurses2.util; use ncurses2.util;
  43
  44 procedure ncurses2.flushinp_test (win : Window) is
  45
  46    procedure Continue (win : Window);
  47
  48    procedure Continue (win : Window) is
  49    begin
  50       Set_Echo_Mode (False);
  51       Move_Cursor (win, 10, 1);
  52       Add (win, 10, 1, " Press any key to continue");
  53       Refresh (win);
  54       Getchar (win);
  55    end Continue;
  56
  57    h, by, sh : Line_Position;
  58    w, bx, sw : Column_Position;
  59
  60    subWin : Window;
  61
  62 begin
  63    Clear (win);
  64    Get_Size (win, h, w);
  65    Get_Window_Position (win, by, bx);
  66    sw := w / 3;
  67    sh := h / 3;
  68    subWin := Sub_Window (win, sh, sw, by + h - sh - 2, bx + w - sw - 2);
  69
  70    if Has_Colors then
  71       Init_Pair (2, Cyan, Blue);
  72       Change_Background (subWin,
  73                          Attributed_Character'(Ch => ' ', Color => 2,
  74                                                Attr => Normal_Video));
  75    end if;
  76
  77    Set_Character_Attributes (subWin,
  78                              (Bold_Character => True, others => False));
  79    Box (subWin);
  80    Add (subWin, 2, 1, "This is a subwindow");
  81    Refresh (win);
  82
  83    Set_Cbreak_Mode (True);
  84    Add (win, 0, 1, "This is a test of the flushinp() call.");
  85
  86    Add (win, 2, 1, "Type random keys for 5 seconds.");
  87    Add (win, 3, 1,
  88         "These should be discarded (not echoed) after the subwindow " &
  89         "goes away.");
  90    Refresh (win);
  91
  92    for i in 0 .. 4 loop
  93       Move_Cursor (subWin, 1, 1);
  94       Add (subWin, Str => "Time = ");
  95       Add (subWin, Str => Integer'Image (i));
  96       Refresh (subWin);
  97       Nap_Milli_Seconds (1000);
  98       Flush_Input;
  99    end loop;
 100
 101    Delete (subWin);
 102    Erase (win);
 103    Flash_Screen;
 104    Refresh (win);
 105    Nap_Milli_Seconds (1000);
 106
 107    Add (win, 2, 1,
 108         Str => "If you were still typing when the window timer expired,");
 109    Add (win, 3, 1,
 110         "or else you typed nothing at all while it was running,");
 111    Add (win, 4, 1,
 112         "test was invalid.  You'll see garbage or nothing at all. ");
 113    Add (win, 6, 1, "Press a key");
 114    Move_Cursor (win, 9, 10);
 115    Refresh (win);
 116    Set_Echo_Mode (True);
 117    Getchar (win);
 118    Flush_Input;
 119    Add (win, 12, 0,
 120         "If you see any key other than what you typed, flushinp() is broken.");
 121    Continue (win);
 122
 123    Move_Cursor (win, 9, 10);
 124    Delete_Character (win);
 125    Refresh (win);
 126    Move_Cursor (win, 12, 0);
 127    Clear_To_End_Of_Line;
 128    Add (win,
 129         "What you typed should now have been deleted; if not, wdelch() " &
 130         "failed.");
 131    Continue (win);
 132
 133    Set_Cbreak_Mode (True);
 134
 135 end ncurses2.flushinp_test;