| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT ncurses Binding Samples -- |
| -- -- |
| -- ncurses -- |
| -- -- |
| -- B O D Y -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| -- Copyright (c) 2000-2004,2006 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: 1.6 $ |
| -- $Date: 2006/06/25 14:24:40 $ |
| -- 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 : constant 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); |
| |
| End_Mouse (tmp); |
| end ncurses2.menu_test; |
