Re: Ada equiv to ncurses?

[mfeldman@seas.gwu.edu (Michael Feldman)]

In article <317FF9F5.2CB287FE@jinx.sckans.edu>,
David Morton  <dmorton@jinx.sckans.edu> wrote:
>The subject says it all... Is there any Ada
>packages similar to ncurses?  I don't need that
>*big* of a package,  but something to tell the
>cursor to goto(X,Y) that is portable would be nice.

Here is a little package to get you started.


PACKAGE Screen IS
------------------------------------------------------------------
--| Procedures for drawing pictures on ANSI Terminal Screen
--| Author: Michael B. Feldman, The George Washington University 
--| Last Modified: October 1995                                     
------------------------------------------------------------------

  ScreenHeight : CONSTANT Integer := 24;
  ScreenWidth : CONSTANT Integer := 80;

  SUBTYPE Height IS Integer RANGE 1..ScreenHeight;
  SUBTYPE Width  IS Integer RANGE 1..ScreenWidth;

  TYPE Position IS RECORD
    Row   : Height := 1;
    Column: Width := 1;
  END RECORD;

  PROCEDURE Beep; 
  -- Pre:  none
  -- Post: the terminal beeps once
  
  PROCEDURE ClearScreen; 
  -- Pre:  none
  -- Post: the terminal screen is cleared
  
  PROCEDURE MoveCursor (To: IN Position);
  -- Pre:  To is defined
  -- Post: the terminal cursor is moved to the given position
  
END Screen;   


WITH Ada.Text_IO;
WITH Ada.Integer_Text_IO;
PACKAGE BODY Screen IS
------------------------------------------------------------------
--| Procedures for drawing pictures on ANSI Terminal Screen
--| These procedures will work correctly only if the actual
--| terminal is ANSI compatible. ANSI.SYS on a DOS machine
--| will suffice.
--| Author: Michael B. Feldman, The George Washington University 
--| Last Modified: September 1995                                     
------------------------------------------------------------------

  PROCEDURE Beep IS
  BEGIN
    Ada.Text_IO.Put (Item => ASCII.BEL);
    Ada.Text_IO.Flush;
  END Beep;

  PROCEDURE ClearScreen IS
  BEGIN
    Ada.Text_IO.Put (Item => ASCII.ESC);
    Ada.Text_IO.Put (Item => "[2J");
    Ada.Text_IO.Flush;
  END ClearScreen;

  PROCEDURE MoveCursor (To: IN Position) IS
  BEGIN                                                
    Ada.Text_IO.Flush;
    Ada.Text_IO.Put (Item => ASCII.ESC);
    Ada.Text_IO.Put ("[");
    Ada.Integer_Text_IO.Put (Item => To.Row, Width => 1);
    Ada.Text_IO.Put (Item => ';');
    Ada.Integer_Text_IO.Put (Item => To.Column, Width => 1);
    Ada.Text_IO.Put (Item => 'f');
  END MoveCursor;  

END Screen;