--------------------------------------------------------------------------------                                                                          ----                       GNAT ncurses Binding Samples                       ----                                                                          ----                                 ncurses                                  ----                                                                          ----                                 B O D Y                                  ----                                                                          ---------------------------------------------------------------------------------- Copyright (c) 2000 Free Software Foundation, Inc.                        ----                                                                          ---- Permission is hereby granted, free of charge, to any person obtaining a  ---- copy of this software and associated documentation files (the            ---- "Software"), to deal in the Software without restriction, including      ---- without limitation the rights to use, copy, modify, merge, publish,      ---- distribute, distribute with modifications, sublicense, and/or sell       ---- copies of the Software, and to permit persons to whom the Software is    ---- furnished to do so, subject to the following conditions:                 ----                                                                          ---- The above copyright notice and this permission notice shall be included  ---- in all copies or substantial portions of the Software.                   ----                                                                          ---- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  ---- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               ---- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   ---- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   ---- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    ---- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    ---- THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               ----                                                                          ---- Except as contained in this notice, the name(s) of the above copyright   ---- holders shall not be used in advertising or otherwise to promote the     ---- sale, use or other dealings in this Software without prior written       ---- authorization.                                                           ----------------------------------------------------------------------------------  Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000--  Version Control--  $Revision: 1.1 $--  Binding Version 01.00------------------------------------------------------------------------------with ncurses2.util; use ncurses2.util;with Terminal_Interface.Curses; use Terminal_Interface.Curses;with Terminal_Interface.Curses.Menus; use Terminal_Interface.Curses.Menus;with Terminal_Interface.Curses.Mouse; use Terminal_Interface.Curses.Mouse;procedure ncurses2.menu_test is   function menu_virtualize (c : Key_Code) return Menu_Request_Code;   procedure xAdd (l : Line_Position; c : Column_Position; s : String);   function menu_virtualize (c : Key_Code) return Menu_Request_Code is   begin      case c is         when Character'Pos (newl) | Key_Exit =>            return Menu_Request_Code'Last + 1; --  MAX_COMMAND? TODO         when  Character'Pos ('u')  =>            return M_ScrollUp_Line;         when  Character'Pos ('d') =>            return M_ScrollDown_Line;         when  Character'Pos ('b') |  Key_Next_Page =>            return M_ScrollUp_Page;         when  Character'Pos ('f') |  Key_Previous_Page =>            return M_ScrollDown_Page;         when  Character'Pos ('n') |  Key_Cursor_Down =>            return M_Next_Item;         when  Character'Pos ('p') |  Key_Cursor_Up =>            return M_Previous_Item;         when  Character'Pos (' ') =>            return M_Toggle_Item;         when  Key_Mouse =>            return c;         when others =>            Beep;            return c;      end case;   end menu_virtualize;   MENU_Y : constant Line_Count := 8;   MENU_X : constant Column_Count := 8;   type String_Access is access String;   animals : constant array (Positive range <>) of String_Access :=     (new String'("Lions"),      new String'("Tigers"),      new String'("Bears"),      new String'("(Oh my!)"),      new String'("Newts"),      new String'("Platypi"),      new String'("Lemurs"));   items_a : Item_Array_Access := new Item_Array (1 .. animals'Last + 1);   tmp : Event_Mask;   procedure xAdd (l : Line_Position; c : Column_Position; s : String) is   begin      Add (Line => l, Column => c, Str => s);   end xAdd;   mrows : Line_Count;   mcols : Column_Count;   menuwin : Window;   m : Menu;   c1 : Key_Code;   c : Driver_Result;   r : Menu_Request_Code;begin   tmp := Start_Mouse;   xAdd (0, 0, "This is the menu test:");   xAdd (2, 0, "  Use up and down arrow to move the select bar.");   xAdd (3, 0, "  'n' and 'p' act like arrows.");   xAdd (4, 0, "  'b' and 'f' scroll up/down (page), 'u' and 'd' (line).");   xAdd (5, 0, "  Press return to exit.");   Refresh;   for i in animals'Range loop      items_a (i) := New_Item (animals (i).all);   end loop;   items_a (animals'Last + 1) := Null_Item;   m := New_Menu (items_a);   Set_Format (m, Line_Position (animals'Last + 1) / 2, 1);   Scale (m, mrows, mcols);   menuwin := Create (mrows + 2, mcols + 2, MENU_Y, MENU_X);   Set_Window (m, menuwin);   Set_KeyPad_Mode (menuwin, True);   Box (menuwin); -- 0,0?   Set_Sub_Window (m, Derived_Window (menuwin, mrows, mcols, 1, 1));   Post (m);   loop      c1 := Getchar (menuwin);      r := menu_virtualize (c1);      c := Driver (m, r);      exit when c = Unknown_Request; -- E_UNKNOWN_COMMAND?      if c = Request_Denied then         Beep;      end if;      --  continue ?   end loop;   Move_Cursor (Line => Lines - 2, Column => 0);   Add (Str => "You chose: ");   Add (Str => Name (Current (m)));   Add (Ch => newl);   Pause; -- the C version didn't use Pause, it spelled it out   Post (m, False); --  unpost, not clear :-(   declare begin      Delete (menuwin);   exception when Curses_Exception => null; end;   --  menuwin has children so will raise the exception.   Delete (m);   tmp := Start_Mouse (No_Events);end ncurses2.menu_test;