------------------------------------------------------------------------------ -- -- -- GNAT ncurses Binding Samples -- -- -- -- ncurses2.util -- -- -- -- B O D Y -- -- -- ------------------------------------------------------------------------------ -- Copyright (c) 2000-2008,2014 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: Eugene V. Melaragno 2000 -- Version Control -- $Revision: 1.9 $ -- $Date: 2014/05/24 21:32:18 $ -- Binding Version 01.00 ------------------------------------------------------------------------------ with Ada.Text_IO; use Ada.Text_IO; with Terminal_Interface.Curses.Trace; use Terminal_Interface.Curses.Trace; with Interfaces.C; with Interfaces.C.Strings; with Ada.Characters.Handling; with ncurses2.genericPuts; package body ncurses2.util is -- #defines from C -- #define CTRL(x) ((x) & 0x1f) function CTRL (c : Character) return Key_Code is begin return Character'Pos (c) mod 16#20#; -- uses a property of ASCII -- A = 16#41#; a = 16#61#; ^A = 1 or 16#1# end CTRL; function CTRL (c : Character) return Character is begin return Character'Val (Character'Pos (c) mod 16#20#); -- uses a property of ASCII -- A = 16#41#; a = 16#61#; ^A = 1 or 16#1# end CTRL; save_trace : Trace_Attribute_Set; -- Common function to allow ^T to toggle trace-mode in the middle of a test -- so that trace-files can be made smaller. function Getchar (win : Window := Standard_Window) return Key_Code is c : Key_Code; begin -- #ifdef TRACE c := Get_Keystroke (win); while c = CTRL ('T') loop -- if _nc_tracing in C if Current_Trace_Setting /= Trace_Disable then save_trace := Current_Trace_Setting; Trace_Put ("TOGGLE-TRACING OFF"); Current_Trace_Setting := Trace_Disable; else Current_Trace_Setting := save_trace; end if; Trace_On (Current_Trace_Setting); if Current_Trace_Setting /= Trace_Disable then Trace_Put ("TOGGLE-TRACING ON"); end if; end loop; -- #else c := Get_Keystroke; return c; end Getchar; procedure Getchar (win : Window := Standard_Window) is begin if Getchar (win) < 0 then Beep; end if; end Getchar; procedure Pause is begin Move_Cursor (Line => Lines - 1, Column => 0); Add (Str => "Press any key to continue... "); Getchar; end Pause; procedure Cannot (s : String) is use Interfaces.C; use Interfaces.C.Strings; function getenv (x : char_array) return chars_ptr; pragma Import (C, getenv, "getenv"); tmp1 : char_array (0 .. 10); package p is new ncurses2.genericPuts (1024); use p; use p.BS; tmpb : BS.Bounded_String; Length : size_t; begin To_C ("TERM", tmp1, Length); Fill_String (getenv (tmp1), tmpb); Add (Ch => newl); myAdd (Str => "This " & tmpb & " terminal " & s); Pause; end Cannot; procedure ShellOut (message : Boolean) is use Interfaces.C; Txt : char_array (0 .. 10); Length : size_t; procedure system (x : char_array); pragma Import (C, system, "system"); begin To_C ("sh", Txt, Length); if message then Add (Str => "Shelling out..."); end if; Save_Curses_Mode (Mode => Curses); End_Windows; system (Txt); if message then Add (Str => "returned from shellout."); Add (Ch => newl); end if; Refresh; end ShellOut; function Is_Digit (c : Key_Code) return Boolean is begin if c >= 16#100# then return False; else return Ada.Characters.Handling.Is_Digit (Character'Val (c)); end if; end Is_Digit; procedure P (s : String) is begin Add (Str => s); Add (Ch => newl); end P; function Code_To_Char (c : Key_Code) return Character is begin if c > Character'Pos (Character'Last) then return Character'Val (0); -- maybe raise exception? else return Character'Val (c); end if; end Code_To_Char; -- This was untestable due to a bug in GNAT (3.12p) -- Hmm, what bug? I don't remember. function ctoi (c : Character) return Integer is begin return Character'Pos (c) - Character'Pos ('0'); end ctoi; end ncurses2.util;