1 ------------------------------------------------------------------------------
3 -- GNAT ncurses Binding Samples --
9 ------------------------------------------------------------------------------
10 -- Copyright (c) 2000,2004 Free Software Foundation, Inc. --
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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 --
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35 ------------------------------------------------------------------------------
36 -- Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
39 -- $Date: 2004/08/21 21:37:00 $
40 -- Binding Version 01.00
41 ------------------------------------------------------------------------------
42 with Terminal_Interface.Curses; use Terminal_Interface.Curses;
46 with Terminal_Interface.Curses; use Terminal_Interface.Curses;
47 pragma Warnings (Off);
48 with Terminal_Interface.Curses.Aux;
51 with Terminal_Interface.Curses.Trace; use Terminal_Interface.Curses.Trace;
53 with Ada.Text_IO; use Ada.Text_IO;
56 with Interfaces.C.Strings;
58 with Ada.Characters.Handling;
60 with ncurses2.genericPuts;
63 package body ncurses2.util is
66 -- #define CTRL(x) ((x) & 0x1f)
67 function CTRL (c : Character) return Key_Code is
69 return Character'Pos (c) mod 16#20#;
70 -- uses a property of ASCII
71 -- A = 16#41#; a = 16#61#; ^A = 1 or 16#1#
74 function CTRL (c : Character) return Character is
76 return Character'Val (Character'Pos (c) mod 16#20#);
77 -- uses a property of ASCII
78 -- A = 16#41#; a = 16#61#; ^A = 1 or 16#1#
81 save_trace : Trace_Attribute_Set;
82 -- Common function to allow ^T to toggle trace-mode in the middle of a test
83 -- so that trace-files can be made smaller.
84 function Getchar (win : Window := Standard_Window) return Key_Code is
88 c := Get_Keystroke (win);
89 while c = CTRL ('T') loop
90 -- if _nc_tracing in C
91 if Current_Trace_Setting /= Trace_Disable then
92 save_trace := Current_Trace_Setting;
93 Trace_Put ("TOGGLE-TRACING OFF");
94 Current_Trace_Setting := Trace_Disable;
96 Current_Trace_Setting := save_trace;
98 Trace_On (Current_Trace_Setting);
99 if Current_Trace_Setting /= Trace_Disable then
100 Trace_Put ("TOGGLE-TRACING ON");
103 -- #else c := Get_Keystroke;
107 procedure Getchar (win : Window := Standard_Window) is
109 if Getchar (win) < 0 then
117 Move_Cursor (Line => Lines - 1, Column => 0);
118 Add (Str => "Press any key to continue... ");
123 procedure Cannot (s : String) is
125 use Interfaces.C.Strings;
126 use Terminal_Interface.Curses.Aux;
127 function getenv (x : char_array) return chars_ptr;
128 pragma Import (C, getenv, "getenv");
129 tmp1 : char_array (0 .. 10);
130 package p is new ncurses2.genericPuts (1024);
134 tmpb : BS.Bounded_String;
138 To_C ("TERM", tmp1, Length);
139 Fill_String (getenv (tmp1), tmpb);
141 myAdd (Str => "This " & tmpb & " terminal " & s);
145 procedure ShellOut (message : Boolean) is
147 Txt : char_array (0 .. 10);
149 procedure system (x : char_array);
150 pragma Import (C, system, "system");
152 To_C ("sh", Txt, Length);
154 Add (Str => "Shelling out...");
156 Save_Curses_Mode (Mode => Curses);
160 Add (Str => "returned from shellout.");
168 function Is_Digit (c : Key_Code) return Boolean is
173 return Ada.Characters.Handling.Is_Digit (Character'Val (c));
177 procedure P (s : String) is
184 function Code_To_Char (c : Key_Code) return Character is
186 if c > Character'Pos (Character'Last) then
187 return Character'Val (0);
188 -- maybe raise exception?
190 return Character'Val (c);
194 -- This was untestable due to a bug in GNAT (3.12p)
195 -- Hmm, what bug? I don't remember.
196 function ctoi (c : Character) return Integer is
198 return Character'Pos (c) - Character'Pos ('0');