ncurses 5.0

[ncurses.git] / Ada95 / src / terminal_interface-curses-text_io-aux.adb

diff --git a/Ada95/src/terminal_interface-curses-text_io-aux.adb b/Ada95/src/terminal_interface-curses-text_io-aux.adb
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+------------------------------------------------------------------------------
+--                                                                          --
+--                           GNAT ncurses Binding                           --
+--                                                                          --
+--                   Terminal_Interface.Curses.Text_IO.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 <juergen.pfeifer@gmx.net> 1996
+--  Version Control:
+--  $Revision: 1.9 $
+--  Binding Version 01.00
+------------------------------------------------------------------------------
+package body Terminal_Interface.Curses.Text_IO.Aux is
+
+   procedure Put_Buf
+     (Win    : in Window;
+      Buf    : in String;
+      Width  : in Field;
+      Signal : in Boolean := True;
+      Ljust  : in Boolean := False)
+   is
+      L   : Field;
+      Len : Field;
+      W   : Field := Width;
+      LC  : Line_Count;
+      CC  : Column_Count;
+      Y   : Line_Position;
+      X   : Column_Position;
+
+      procedure Output (From, To : Field);
+
+      procedure Output (From, To : Field)
+      is
+      begin
+         if Len > 0 then
+            if W = 0 then
+               W := Len;
+            end if;
+            if Len > W then
+               --  LRM A10.6 (7) says this
+               W := Len;
+            end if;
+
+            pragma Assert (Len <= W);
+            Get_Size (Win, LC, CC);
+            if Column_Count (Len) > CC then
+               if Signal then
+                  raise Layout_Error;
+               else
+                  return;
+               end if;
+            else
+               if Len < W and then not Ljust then
+                  declare
+                     Filler : constant String (1 .. (W - Len))
+                       := (others => ' ');
+                  begin
+                     Put (Win, Filler);
+                  end;
+               end if;
+               Get_Cursor_Position (Win, Y, X);
+               if (X + Column_Position (Len)) > CC then
+                  New_Line (Win);
+               end if;
+               Put (Win, Buf (From .. To));
+               if Len < W and then Ljust then
+                  declare
+                     Filler : constant String (1 .. (W - Len))
+                       := (others => ' ');
+                  begin
+                     Put (Win, Filler);
+                  end;
+               end if;
+            end if;
+         end if;
+      end Output;
+
+   begin
+      pragma Assert (Win /= Null_Window);
+      if Ljust then
+         L := 1;
+         for I in 1 .. Buf'Length loop
+            exit when Buf (L) = ' ';
+            L := L + 1;
+         end loop;
+         Len := L - 1;
+         Output (1, Len);
+      else  -- input buffer is not left justified
+         L := Buf'Length;
+         for I in 1 .. Buf'Length loop
+            exit when Buf (L) = ' ';
+            L := L - 1;
+         end loop;
+         Len := Buf'Length - L;
+         Output (L + 1, Buf'Length);
+      end if;
+   end Put_Buf;
+
+end Terminal_Interface.Curses.Text_IO.Aux;
+