2002-10-13 11:35:53 +08:00
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------------------------------------------------------------------------------
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-- --
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-- GNAT ncurses Binding Samples --
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-- --
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-- ncurses --
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-- --
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-- B O D Y --
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-- --
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------------------------------------------------------------------------------
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2006-12-18 12:32:42 +08:00
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-- Copyright (c) 2000-2004,2006 Free Software Foundation, Inc. --
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2002-10-13 11:35:53 +08:00
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-- --
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-- Permission is hereby granted, free of charge, to any person obtaining a --
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-- copy of this software and associated documentation files (the --
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-- "Software"), to deal in the Software without restriction, including --
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-- without limitation the rights to use, copy, modify, merge, publish, --
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-- distribute, distribute with modifications, sublicense, and/or sell --
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-- copies of the Software, and to permit persons to whom the Software is --
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-- furnished to do so, subject to the following conditions: --
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-- --
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-- The above copyright notice and this permission notice shall be included --
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-- in all copies or substantial portions of the Software. --
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-- --
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-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
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-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --
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-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. --
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-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, --
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-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR --
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-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR --
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-- THE USE OR OTHER DEALINGS IN THE SOFTWARE. --
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-- --
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-- Except as contained in this notice, the name(s) of the above copyright --
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-- holders shall not be used in advertising or otherwise to promote the --
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-- sale, use or other dealings in this Software without prior written --
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-- authorization. --
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------------------------------------------------------------------------------
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-- Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
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-- Version Control
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2006-12-18 12:32:42 +08:00
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-- $Revision: 1.6 $
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-- $Date: 2006/06/25 14:24:40 $
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2002-10-13 11:35:53 +08:00
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-- Binding Version 01.00
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------------------------------------------------------------------------------
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with ncurses2.util; use ncurses2.util;
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with Terminal_Interface.Curses; use Terminal_Interface.Curses;
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with Terminal_Interface.Curses.Menus; use Terminal_Interface.Curses.Menus;
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with Terminal_Interface.Curses.Mouse; use Terminal_Interface.Curses.Mouse;
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procedure ncurses2.menu_test is
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function menu_virtualize (c : Key_Code) return Menu_Request_Code;
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procedure xAdd (l : Line_Position; c : Column_Position; s : String);
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function menu_virtualize (c : Key_Code) return Menu_Request_Code is
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begin
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case c is
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when Character'Pos (newl) | Key_Exit =>
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return Menu_Request_Code'Last + 1; -- MAX_COMMAND? TODO
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when Character'Pos ('u') =>
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return M_ScrollUp_Line;
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when Character'Pos ('d') =>
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return M_ScrollDown_Line;
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when Character'Pos ('b') | Key_Next_Page =>
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return M_ScrollUp_Page;
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when Character'Pos ('f') | Key_Previous_Page =>
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return M_ScrollDown_Page;
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when Character'Pos ('n') | Key_Cursor_Down =>
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return M_Next_Item;
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when Character'Pos ('p') | Key_Cursor_Up =>
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return M_Previous_Item;
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when Character'Pos (' ') =>
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return M_Toggle_Item;
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when Key_Mouse =>
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return c;
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when others =>
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Beep;
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return c;
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end case;
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end menu_virtualize;
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MENU_Y : constant Line_Count := 8;
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MENU_X : constant Column_Count := 8;
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type String_Access is access String;
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animals : constant array (Positive range <>) of String_Access :=
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(new String'("Lions"),
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new String'("Tigers"),
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new String'("Bears"),
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new String'("(Oh my!)"),
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new String'("Newts"),
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new String'("Platypi"),
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new String'("Lemurs"));
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2006-12-18 12:32:42 +08:00
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items_a : constant Item_Array_Access :=
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new Item_Array (1 .. animals'Last + 1);
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2002-10-13 11:35:53 +08:00
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tmp : Event_Mask;
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2005-10-10 02:41:57 +08:00
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2002-10-13 11:35:53 +08:00
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procedure xAdd (l : Line_Position; c : Column_Position; s : String) is
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begin
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Add (Line => l, Column => c, Str => s);
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end xAdd;
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mrows : Line_Count;
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mcols : Column_Count;
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menuwin : Window;
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m : Menu;
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c1 : Key_Code;
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c : Driver_Result;
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r : Menu_Request_Code;
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begin
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tmp := Start_Mouse;
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xAdd (0, 0, "This is the menu test:");
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xAdd (2, 0, " Use up and down arrow to move the select bar.");
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xAdd (3, 0, " 'n' and 'p' act like arrows.");
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xAdd (4, 0, " 'b' and 'f' scroll up/down (page), 'u' and 'd' (line).");
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xAdd (5, 0, " Press return to exit.");
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Refresh;
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for i in animals'Range loop
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items_a (i) := New_Item (animals (i).all);
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end loop;
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items_a (animals'Last + 1) := Null_Item;
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m := New_Menu (items_a);
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Set_Format (m, Line_Position (animals'Last + 1) / 2, 1);
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Scale (m, mrows, mcols);
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menuwin := Create (mrows + 2, mcols + 2, MENU_Y, MENU_X);
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Set_Window (m, menuwin);
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Set_KeyPad_Mode (menuwin, True);
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Box (menuwin); -- 0,0?
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Set_Sub_Window (m, Derived_Window (menuwin, mrows, mcols, 1, 1));
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Post (m);
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loop
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c1 := Getchar (menuwin);
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r := menu_virtualize (c1);
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c := Driver (m, r);
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exit when c = Unknown_Request; -- E_UNKNOWN_COMMAND?
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if c = Request_Denied then
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Beep;
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end if;
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-- continue ?
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end loop;
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Move_Cursor (Line => Lines - 2, Column => 0);
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Add (Str => "You chose: ");
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Add (Str => Name (Current (m)));
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Add (Ch => newl);
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Pause; -- the C version didn't use Pause, it spelled it out
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Post (m, False); -- unpost, not clear :-(
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declare begin
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Delete (menuwin);
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exception when Curses_Exception => null; end;
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-- menuwin has children so will raise the exception.
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Delete (m);
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2005-10-10 02:41:57 +08:00
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End_Mouse (tmp);
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2002-10-13 11:35:53 +08:00
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end ncurses2.menu_test;
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