1 ------------------------------------------------------------------------------
3 -- GNAT ncurses Binding Samples --
9 ------------------------------------------------------------------------------
10 -- Copyright 2018,2020 Thomas E. Dickey --
11 -- Copyright 2000-2009,2011 Free Software Foundation, Inc. --
13 -- Permission is hereby granted, free of charge, to any person obtaining a --
14 -- copy of this software and associated documentation files (the --
15 -- "Software"), to deal in the Software without restriction, including --
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17 -- distribute, distribute with modifications, sublicense, and/or sell --
18 -- copies of the Software, and to permit persons to whom the Software is --
19 -- furnished to do so, subject to the following conditions: --
21 -- The above copyright notice and this permission notice shall be included --
22 -- in all copies or substantial portions of the Software. --
24 -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
25 -- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --
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27 -- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, --
28 -- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR --
29 -- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR --
30 -- THE USE OR OTHER DEALINGS IN THE SOFTWARE. --
32 -- Except as contained in this notice, the name(s) of the above copyright --
33 -- holders shall not be used in advertising or otherwise to promote the --
34 -- sale, use or other dealings in this Software without prior written --
36 ------------------------------------------------------------------------------
37 -- Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
40 -- $Date: 2020/02/02 23:34:34 $
41 -- Binding Version 01.00
42 ------------------------------------------------------------------------------
43 with ncurses2.util; use ncurses2.util;
44 with Terminal_Interface.Curses; use Terminal_Interface.Curses;
46 with Ada.Strings.Unbounded;
48 with Terminal_Interface.Curses.Aux;
50 procedure ncurses2.slk_test is
51 procedure myGet (Win : Window := Standard_Window;
52 Str : out Ada.Strings.Unbounded.Unbounded_String;
55 procedure myGet (Win : Window := Standard_Window;
56 Str : out Ada.Strings.Unbounded.Unbounded_String;
59 use Ada.Strings.Unbounded;
61 use Terminal_Interface.Curses.Aux;
63 function Wgetnstr (Win : Window;
65 Len : int) return int;
66 pragma Import (C, Wgetnstr, "wgetnstr");
68 -- FIXME: how to construct "(Len > 0) ? Len : 80"?
69 Ask : constant Interfaces.C.size_t := Interfaces.C.size_t'Val (Len + 80);
70 Txt : char_array (0 .. Ask);
73 Txt (0) := Interfaces.C.char'First;
74 if Wgetnstr (Win, Txt, Txt'Length) = Curses_Err then
75 raise Curses_Exception;
77 Str := To_Unbounded_String (To_Ada (Txt, True));
80 use Ada.Strings.Unbounded;
83 buf : Unbounded_String;
85 fmt : Label_Justification := Centered;
91 Move_Cursor (Line => 0, Column => 0);
92 c2 := Code_To_Char (c);
94 when Character'Val (Character'Pos ('l') mod 16#20#) => -- CTRL('l')
96 Switch_Character_Attribute (Attr => (Bold_Character => True,
98 Add (Line => 0, Column => 20,
99 Str => "Soft Key Exerciser");
100 Switch_Character_Attribute (On => False,
101 Attr => (Bold_Character => True,
104 Move_Cursor (Line => 2, Column => 0);
105 P ("Available commands are:");
107 P ("^L -- refresh screen");
108 P ("a -- activate or restore soft keys");
109 P ("d -- disable soft keys");
110 P ("c -- set centered format for labels");
111 P ("l -- set left-justified format for labels");
112 P ("r -- set right-justified format for labels");
113 P ("[12345678] -- set label; labels are numbered 1 through 8");
114 P ("e -- erase stdscr (should not erase labels)");
115 P ("s -- test scrolling of shortened screen");
116 P ("x, q -- return to main menu");
118 P ("Note: if activating the soft keys causes your terminal to");
119 P ("scroll up one line, your terminal auto-scrolls when anything");
120 P ("is written to the last screen position. The ncurses code");
121 P ("does not yet handle this gracefully.");
123 Restore_Soft_Label_Keys;
126 Restore_Soft_Label_Keys;
130 Add (Line => 20, Column => 0,
131 Str => "Press Q to stop the scrolling-test: ");
134 c2 := Code_To_Char (c);
137 -- TODO when c is not a character (arrow key)
138 -- the behavior is different from the C version.
142 Clear_Soft_Label_Keys;
149 when '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' =>
150 Add (Line => 20, Column => 0,
151 Str => "Please enter the label value: ");
152 Set_Echo_Mode (SwitchOn => True);
154 Set_Echo_Mode (SwitchOn => False);
156 Set_Soft_Label_Key (Label_Number (tmp), To_String (buf), fmt);
157 Refresh_Soft_Label_Keys;
158 Move_Cursor (Line => 20, Column => 0);
159 Clear_To_End_Of_Line;
162 -- the C version needed a goto, ha ha
163 -- breaks exit the case not the loop because fall-through
169 -- TODO exit when c = EOF
173 end ncurses2.slk_test;