1 ------------------------------------------------------------------------------
3 -- GNAT ncurses Binding --
5 -- Terminal_Interface.Curses.Forms.Field_Types.User.Choice --
9 ------------------------------------------------------------------------------
10 -- Copyright 2020 Thomas E. Dickey --
11 -- Copyright 1999-2008,2011 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 --
16 -- without limitation the rights to use, copy, modify, merge, publish, --
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 --
26 -- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. --
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: Juergen Pfeifer, 1996
40 -- $Date: 2020/02/02 23:34:34 $
41 -- Binding Version 01.00
42 ------------------------------------------------------------------------------
45 package Terminal_Interface.Curses.Forms.Field_Types.User.Choice is
47 (Terminal_Interface.Curses.Forms.Field_Types.User.Choice);
49 subtype C_Int is Interfaces.C.int;
51 type User_Defined_Field_Type_With_Choice is abstract new
52 User_Defined_Field_Type with null record;
53 -- This is the root of the mechanism we use to create field types in
54 -- Ada95 that allow the prev/next mechanism. You should your own type
55 -- derive from this one and implement the Field_Check, Character_Check
56 -- Next and Previous functions for your own type.
58 type User_Defined_Field_Type_With_Choice_Access is access all
59 User_Defined_Field_Type_With_Choice'Class;
63 Typ : User_Defined_Field_Type_With_Choice) return Boolean
65 -- If True is returned, the function successfully generated a next
66 -- value into the fields buffer.
70 Typ : User_Defined_Field_Type_With_Choice) return Boolean
72 -- If True is returned, the function successfully generated a previous
73 -- value into the fields buffer.
75 -- +----------------------------------------------------------------------
79 function C_Generic_Choice return C_Field_Type;
81 function Generic_Next (Fld : Field;
82 Usr : System.Address) return Curses_Bool;
83 pragma Convention (C, Generic_Next);
84 -- This is the generic next Choice_Function for the low-level fieldtype
85 -- representing all the User_Defined_Field_Type derivatives. It routes
86 -- the call to the Next implementation for the type.
88 function Generic_Prev (Fld : Field;
89 Usr : System.Address) return Curses_Bool;
90 pragma Convention (C, Generic_Prev);
91 -- This is the generic prev Choice_Function for the low-level fieldtype
92 -- representing all the User_Defined_Field_Type derivatives. It routes
93 -- the call to the Previous implementation for the type.
95 end Terminal_Interface.Curses.Forms.Field_Types.User.Choice;