1 ------------------------------------------------------------------------------
3 -- GNAT ncurses Binding Samples --
9 ------------------------------------------------------------------------------
10 -- Copyright (c) 2000 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, --
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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 -- Binding Version 01.00
40 ------------------------------------------------------------------------------
41 with ncurses2.util; use ncurses2.util;
43 with Terminal_Interface.Curses; use Terminal_Interface.Curses;
44 with Terminal_Interface.Curses.Menus; use Terminal_Interface.Curses.Menus;
45 with Terminal_Interface.Curses.Mouse; use Terminal_Interface.Curses.Mouse;
47 procedure ncurses2.menu_test is
48 function menu_virtualize (c : Key_Code) return Menu_Request_Code;
49 procedure xAdd (l : Line_Position; c : Column_Position; s : String);
51 function menu_virtualize (c : Key_Code) return Menu_Request_Code is
54 when Character'Pos (newl) | Key_Exit =>
55 return Menu_Request_Code'Last + 1; -- MAX_COMMAND? TODO
56 when Character'Pos ('u') =>
57 return M_ScrollUp_Line;
58 when Character'Pos ('d') =>
59 return M_ScrollDown_Line;
60 when Character'Pos ('b') | Key_Next_Page =>
61 return M_ScrollUp_Page;
62 when Character'Pos ('f') | Key_Previous_Page =>
63 return M_ScrollDown_Page;
64 when Character'Pos ('n') | Key_Cursor_Down =>
66 when Character'Pos ('p') | Key_Cursor_Up =>
67 return M_Previous_Item;
68 when Character'Pos (' ') =>
78 MENU_Y : constant Line_Count := 8;
79 MENU_X : constant Column_Count := 8;
81 type String_Access is access String;
83 animals : constant array (Positive range <>) of String_Access :=
84 (new String'("Lions"),
85 new String'("Tigers"),
87 new String'("(Oh my!)"),
89 new String'("Platypi"),
90 new String'("Lemurs"));
92 items_a : Item_Array_Access := new Item_Array (1 .. animals'Last + 1);
95 procedure xAdd (l : Line_Position; c : Column_Position; s : String) is
97 Add (Line => l, Column => c, Str => s);
101 mcols : Column_Count;
110 r : Menu_Request_Code;
113 xAdd (0, 0, "This is the menu test:");
114 xAdd (2, 0, " Use up and down arrow to move the select bar.");
115 xAdd (3, 0, " 'n' and 'p' act like arrows.");
116 xAdd (4, 0, " 'b' and 'f' scroll up/down (page), 'u' and 'd' (line).");
117 xAdd (5, 0, " Press return to exit.");
120 for i in animals'Range loop
121 items_a (i) := New_Item (animals (i).all);
123 items_a (animals'Last + 1) := Null_Item;
125 m := New_Menu (items_a);
127 Set_Format (m, Line_Position (animals'Last + 1) / 2, 1);
128 Scale (m, mrows, mcols);
130 menuwin := Create (mrows + 2, mcols + 2, MENU_Y, MENU_X);
131 Set_Window (m, menuwin);
132 Set_KeyPad_Mode (menuwin, True);
133 Box (menuwin); -- 0,0?
135 Set_Sub_Window (m, Derived_Window (menuwin, mrows, mcols, 1, 1));
140 c1 := Getchar (menuwin);
141 r := menu_virtualize (c1);
143 exit when c = Unknown_Request; -- E_UNKNOWN_COMMAND?
144 if c = Request_Denied then
150 Move_Cursor (Line => Lines - 2, Column => 0);
151 Add (Str => "You chose: ");
152 Add (Str => Name (Current (m)));
154 Pause; -- the C version didn't use Pause, it spelled it out
156 Post (m, False); -- unpost, not clear :-(
159 exception when Curses_Exception => null; end;
160 -- menuwin has children so will raise the exception.
164 tmp := Start_Mouse (No_Events);
165 end ncurses2.menu_test;