release/src/router/libncurses/Ada95/src/terminal_interface-curses-text_io-aux.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                           GNAT ncurses Binding                           --
   4 --                                                                          --
   5 --                   Terminal_Interface.Curses.Text_IO.Aux                  --
   6 --                                                                          --
   7 --                                 B O D Y                                  --
   8 --                                                                          --
   9 ------------------------------------------------------------------------------
  10 -- Copyright (c) 1998-2006,2009 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: 1.13 $
  39 --  $Date: 2009/12/26 17:38:58 $
  40 --  Binding Version 01.00
  41 ------------------------------------------------------------------------------
  42 package body Terminal_Interface.Curses.Text_IO.Aux is
  43
  44    procedure Put_Buf
  45      (Win    : Window;
  46       Buf    : String;
  47       Width  : Field;
  48       Signal : Boolean := True;
  49       Ljust  : Boolean := False)
  50    is
  51       L   : Field;
  52       Len : Field;
  53       W   : Field := Width;
  54       LC  : Line_Count;
  55       CC  : Column_Count;
  56       Y   : Line_Position;
  57       X   : Column_Position;
  58
  59       procedure Output (From, To : Field);
  60
  61       procedure Output (From, To : Field)
  62       is
  63       begin
  64          if Len > 0 then
  65             if W = 0 then
  66                W := Len;
  67             end if;
  68             if Len > W then
  69                --  LRM A10.6 (7) says this
  70                W := Len;
  71             end if;
  72
  73             pragma Assert (Len <= W);
  74             Get_Size (Win, LC, CC);
  75             if Column_Count (Len) > CC then
  76                if Signal then
  77                   raise Layout_Error;
  78                else
  79                   return;
  80                end if;
  81             else
  82                if Len < W and then not Ljust then
  83                   declare
  84                      Filler : constant String (1 .. (W - Len))
  85                        := (others => ' ');
  86                   begin
  87                      Put (Win, Filler);
  88                   end;
  89                end if;
  90                Get_Cursor_Position (Win, Y, X);
  91                if (X + Column_Position (Len)) > CC then
  92                   New_Line (Win);
  93                end if;
  94                Put (Win, Buf (From .. To));
  95                if Len < W and then Ljust then
  96                   declare
  97                      Filler : constant String (1 .. (W - Len))
  98                        := (others => ' ');
  99                   begin
 100                      Put (Win, Filler);
 101                   end;
 102                end if;
 103             end if;
 104          end if;
 105       end Output;
 106
 107    begin
 108       pragma Assert (Win /= Null_Window);
 109       if Ljust then
 110          L := 1;
 111          for I in 1 .. Buf'Length loop
 112             exit when Buf (L) = ' ';
 113             L := L + 1;
 114          end loop;
 115          Len := L - 1;
 116          Output (1, Len);
 117       else  -- input buffer is not left justified
 118          L := Buf'Length;
 119          for I in 1 .. Buf'Length loop
 120             exit when Buf (L) = ' ';
 121             L := L - 1;
 122          end loop;
 123          Len := Buf'Length - L;
 124          Output (L + 1, Buf'Length);
 125       end if;
 126    end Put_Buf;
 127
 128 end Terminal_Interface.Curses.Text_IO.Aux;