1 ------------------------------------------------------------------------------
3 -- GNAT ncurses Binding Samples --
9 ------------------------------------------------------------------------------
10 -- Copyright (c) 2000-2004,2006 Free Software Foundation, Inc. --
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20 -- The above copyright notice and this permission notice shall be included --
21 -- in all copies or substantial portions of the Software. --
23 -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
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31 -- Except as contained in this notice, the name(s) of the above copyright --
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35 ------------------------------------------------------------------------------
36 -- Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
39 -- $Date: 2006/06/25 14:24:40 $
40 -- Binding Version 01.00
41 ------------------------------------------------------------------------------
42 with Terminal_Interface.Curses;
46 pragma Warnings (Off);
47 with Terminal_Interface.Curses.Aux;
50 with Terminal_Interface.Curses.Trace; use Terminal_Interface.Curses.Trace;
52 with Ada.Text_IO; use Ada.Text_IO;
55 with Interfaces.C.Strings;
57 with Ada.Characters.Handling;
59 with ncurses2.genericPuts;
61 package body ncurses2.util is
64 -- #define CTRL(x) ((x) & 0x1f)
65 function CTRL (c : Character) return Key_Code is
67 return Character'Pos (c) mod 16#20#;
68 -- uses a property of ASCII
69 -- A = 16#41#; a = 16#61#; ^A = 1 or 16#1#
72 function CTRL (c : Character) return Character is
74 return Character'Val (Character'Pos (c) mod 16#20#);
75 -- uses a property of ASCII
76 -- A = 16#41#; a = 16#61#; ^A = 1 or 16#1#
79 save_trace : Trace_Attribute_Set;
80 -- Common function to allow ^T to toggle trace-mode in the middle of a test
81 -- so that trace-files can be made smaller.
82 function Getchar (win : Window := Standard_Window) return Key_Code is
86 c := Get_Keystroke (win);
87 while c = CTRL ('T') loop
88 -- if _nc_tracing in C
89 if Current_Trace_Setting /= Trace_Disable then
90 save_trace := Current_Trace_Setting;
91 Trace_Put ("TOGGLE-TRACING OFF");
92 Current_Trace_Setting := Trace_Disable;
94 Current_Trace_Setting := save_trace;
96 Trace_On (Current_Trace_Setting);
97 if Current_Trace_Setting /= Trace_Disable then
98 Trace_Put ("TOGGLE-TRACING ON");
101 -- #else c := Get_Keystroke;
105 procedure Getchar (win : Window := Standard_Window) is
107 if Getchar (win) < 0 then
114 Move_Cursor (Line => Lines - 1, Column => 0);
115 Add (Str => "Press any key to continue... ");
119 procedure Cannot (s : String) is
121 use Interfaces.C.Strings;
122 use Terminal_Interface.Curses.Aux;
123 function getenv (x : char_array) return chars_ptr;
124 pragma Import (C, getenv, "getenv");
125 tmp1 : char_array (0 .. 10);
126 package p is new ncurses2.genericPuts (1024);
130 tmpb : BS.Bounded_String;
134 To_C ("TERM", tmp1, Length);
135 Fill_String (getenv (tmp1), tmpb);
137 myAdd (Str => "This " & tmpb & " terminal " & s);
141 procedure ShellOut (message : Boolean) is
143 Txt : char_array (0 .. 10);
145 procedure system (x : char_array);
146 pragma Import (C, system, "system");
148 To_C ("sh", Txt, Length);
150 Add (Str => "Shelling out...");
152 Save_Curses_Mode (Mode => Curses);
156 Add (Str => "returned from shellout.");
162 function Is_Digit (c : Key_Code) return Boolean is
167 return Ada.Characters.Handling.Is_Digit (Character'Val (c));
171 procedure P (s : String) is
177 function Code_To_Char (c : Key_Code) return Character is
179 if c > Character'Pos (Character'Last) then
180 return Character'Val (0);
181 -- maybe raise exception?
183 return Character'Val (c);
187 -- This was untestable due to a bug in GNAT (3.12p)
188 -- Hmm, what bug? I don't remember.
189 function ctoi (c : Character) return Integer is
191 return Character'Pos (c) - Character'Pos ('0');