1 ------------------------------------------------------------------------------
3 -- GNAT ncurses Binding Samples --
9 ------------------------------------------------------------------------------
10 -- Copyright (c) 2000-2006,2008 Free Software Foundation, Inc. --
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13 -- copy of this software and associated documentation files (the --
14 -- "Software"), to deal in the Software without restriction, including --
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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: 2008/07/26 18:51:20 $
40 -- Binding Version 01.00
41 ------------------------------------------------------------------------------
42 with Ada
.Text_IO
; use Ada
.Text_IO
;
44 pragma Warnings
(Off
);
45 with Terminal_Interface
.Curses
.Aux
;
48 with Terminal_Interface
.Curses
.Trace
; use Terminal_Interface
.Curses
.Trace
;
51 with Interfaces
.C
.Strings
;
53 with Ada
.Characters
.Handling
;
55 with ncurses2
.genericPuts
;
57 package body ncurses2
.util
is
60 -- #define CTRL(x) ((x) & 0x1f)
61 function CTRL
(c
: Character) return Key_Code
is
63 return Character'Pos (c
) mod 16#
20#
;
64 -- uses a property of ASCII
65 -- A = 16#41#; a = 16#61#; ^A = 1 or 16#1#
68 function CTRL
(c
: Character) return Character is
70 return Character'Val (Character'Pos (c
) mod 16#
20#
);
71 -- uses a property of ASCII
72 -- A = 16#41#; a = 16#61#; ^A = 1 or 16#1#
75 save_trace
: Trace_Attribute_Set
;
76 -- Common function to allow ^T to toggle trace-mode in the middle of a test
77 -- so that trace-files can be made smaller.
78 function Getchar
(win
: Window
:= Standard_Window
) return Key_Code
is
82 c
:= Get_Keystroke
(win
);
83 while c
= CTRL
('T') loop
84 -- if _nc_tracing in C
85 if Current_Trace_Setting
/= Trace_Disable
then
86 save_trace
:= Current_Trace_Setting
;
87 Trace_Put
("TOGGLE-TRACING OFF");
88 Current_Trace_Setting
:= Trace_Disable
;
90 Current_Trace_Setting
:= save_trace
;
92 Trace_On
(Current_Trace_Setting
);
93 if Current_Trace_Setting
/= Trace_Disable
then
94 Trace_Put
("TOGGLE-TRACING ON");
97 -- #else c := Get_Keystroke;
101 procedure Getchar
(win
: Window
:= Standard_Window
) is
103 if Getchar
(win
) < 0 then
110 Move_Cursor
(Line
=> Lines
- 1, Column
=> 0);
111 Add
(Str
=> "Press any key to continue... ");
115 procedure Cannot
(s
: String) is
117 use Interfaces
.C
.Strings
;
118 use Terminal_Interface
.Curses
.Aux
;
119 function getenv
(x
: char_array
) return chars_ptr
;
120 pragma Import
(C
, getenv
, "getenv");
121 tmp1
: char_array
(0 .. 10);
122 package p
is new ncurses2
.genericPuts
(1024);
126 tmpb
: BS
.Bounded_String
;
130 To_C
("TERM", tmp1
, Length
);
131 Fill_String
(getenv
(tmp1
), tmpb
);
133 myAdd
(Str
=> "This " & tmpb
& " terminal " & s
);
137 procedure ShellOut
(message
: Boolean) is
139 Txt
: char_array
(0 .. 10);
141 procedure system
(x
: char_array
);
142 pragma Import
(C
, system
, "system");
144 To_C
("sh", Txt
, Length
);
146 Add
(Str
=> "Shelling out...");
148 Save_Curses_Mode
(Mode
=> Curses
);
152 Add
(Str
=> "returned from shellout.");
158 function Is_Digit
(c
: Key_Code
) return Boolean is
163 return Ada
.Characters
.Handling
.Is_Digit
(Character'Val (c
));
167 procedure P
(s
: String) is
173 function Code_To_Char
(c
: Key_Code
) return Character is
175 if c
> Character'Pos (Character'Last) then
176 return Character'Val (0);
177 -- maybe raise exception?
179 return Character'Val (c
);
183 -- This was untestable due to a bug in GNAT (3.12p)
184 -- Hmm, what bug? I don't remember.
185 function ctoi
(c
: Character) return Integer is
187 return Character'Pos (c
) - Character'Pos ('0');