1 ------------------------------------------------------------------------------
3 -- GNAT ncurses Binding Samples --
9 ------------------------------------------------------------------------------
10 -- Copyright (c) 2000 Free Software Foundation, Inc. --
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: --
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 --
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. --
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 --
35 ------------------------------------------------------------------------------
36 -- Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
39 -- Binding Version 01.00
40 ------------------------------------------------------------------------------
41 with Terminal_Interface.Curses; use Terminal_Interface.Curses;
45 with Terminal_Interface.Curses; use 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;
62 package body ncurses2.util is
65 -- #define CTRL(x) ((x) & 0x1f)
66 function CTRL (c : Character) return Key_Code is
68 return Character'Pos (c) mod 16#20#;
69 -- uses a property of ASCII
70 -- A = 16#41#; a = 16#61#; ^A = 1 or 16#1#
73 function CTRL (c : Character) return Character is
75 return Character'Val (Character'Pos (c) mod 16#20#);
76 -- uses a property of ASCII
77 -- A = 16#41#; a = 16#61#; ^A = 1 or 16#1#
80 save_trace : Trace_Attribute_Set;
81 -- Common function to allow ^T to toggle trace-mode in the middle of a test
82 -- so that trace-files can be made smaller.
83 function Getchar (win : Window := Standard_Window) return Key_Code is
87 c := Get_Keystroke (win);
88 while c = CTRL ('T') loop
89 -- if _nc_tracing in C
90 if Current_Trace_Setting /= Trace_Disable then
91 save_trace := Current_Trace_Setting;
92 Trace_Put ("TOGGLE-TRACING OFF");
93 Current_Trace_Setting := Trace_Disable;
95 Current_Trace_Setting := save_trace;
97 Trace_On (Current_Trace_Setting);
98 if Current_Trace_Setting /= Trace_Disable then
99 Trace_Put ("TOGGLE-TRACING ON");
102 -- #else c := Get_Keystroke;
106 procedure Getchar (win : Window := Standard_Window) is
115 Move_Cursor (Line => Lines - 1, Column => 0);
116 Add (Str => "Press any key to continue... ");
121 procedure Cannot (s : String) is
123 use Interfaces.C.Strings;
124 use Terminal_Interface.Curses.Aux;
125 function getenv (x : char_array) return chars_ptr;
126 pragma Import (C, getenv, "getenv");
127 tmp1 : char_array (0 .. 10);
128 package p is new ncurses2.genericPuts (1024);
132 tmpb : BS.Bounded_String;
136 To_C ("TERM", tmp1, Length);
137 Fill_String (getenv (tmp1), tmpb);
139 myAdd (Str => "This " & tmpb & " terminal " & s);
143 procedure ShellOut (message : Boolean) is
145 Txt : char_array (0 .. 10);
147 procedure system (x : char_array);
148 pragma Import (C, system, "system");
150 To_C ("sh", Txt, Length);
152 Add (Str => "Shelling out...");
154 Save_Curses_Mode (Mode => Curses);
158 Add (Str => "returned from shellout.");
166 function Is_Digit (c : Key_Code) return Boolean is
171 return Ada.Characters.Handling.Is_Digit (Character'Val (c));
175 procedure P (s : String) is
182 function Code_To_Char (c : Key_Code) return Character is
184 if c > Character'Pos (Character'Last) then
185 return Character'Val (0);
186 -- maybe raise exception?
188 return Character'Val (c);
192 -- This was untestable due to a bug in GNAT (3.12p)
193 -- Hmm, what bug? I don't remember.
194 function ctoi (c : Character) return Integer is
196 return Character'Pos (c) - Character'Pos ('0');