5 <BODY BGCOLOR="#99ccbb" TEXT="#000000" LINK="#4060b0" VLINK="#000080" ALINK="#ff4040">
7 <I>------------------------------------------------------------------------------</I>
9 <I>-- <A HREF="http://www.gnat.com">GNAT</A> ncurses Binding --</I>
11 <I>-- Terminal_Interface.Curses.Forms.Field_Types.User.Choice --</I>
15 <I>------------------------------------------------------------------------------</I>
16 <I>-- Copyright (c) 1998 Free Software Foundation, Inc. --</I>
18 <I>-- Permission is hereby granted, free of charge, to any person obtaining a --</I>
19 <I>-- copy of this software and associated documentation files (the --</I>
20 <I>-- "Software"), to deal in the Software without restriction, including --</I>
21 <I>-- without limitation the rights to use, copy, modify, merge, publish, --</I>
22 <I>-- distribute, distribute with modifications, sublicense, and/or sell --</I>
23 <I>-- copies of the Software, and to permit persons to whom the Software is --</I>
24 <I>-- furnished to do so, subject to the following conditions: --</I>
26 <I>-- The above copyright notice and this permission notice shall be included --</I>
27 <I>-- in all copies or substantial portions of the Software. --</I>
29 <I>-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --</I>
30 <I>-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --</I>
31 <I>-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. --</I>
32 <I>-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, --</I>
33 <I>-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR --</I>
34 <I>-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR --</I>
35 <I>-- THE USE OR OTHER DEALINGS IN THE SOFTWARE. --</I>
37 <I>-- Except as contained in this notice, the name(s) of the above copyright --</I>
38 <I>-- holders shall not be used in advertising or otherwise to promote the --</I>
39 <I>-- sale, use or other dealings in this Software without prior written --</I>
40 <I>-- authorization. --</I>
41 <I>------------------------------------------------------------------------------</I>
42 <I>-- <A HREF="http://home.t-online.de/home/Juergen.Pfeifer">Jürgen Pfeifer</A>, Email: <A HREF="mailto:Juergen.Pfeifer@T-Online.de">Juergen.Pfeifer@T-Online.de</A> --</I>
43 <I>-- Version Control:</I>
44 <I>-- @Revision: 1.1 @</I>
45 <I>------------------------------------------------------------------------------</I>
46 <B>with</B> Ada.Unchecked_Deallocation;
47 <B>with</B> Terminal_Interface.Curses.<A HREF="terminal_interface-curses-aux_s.html#32:35">Aux</A>;
49 <B>package</B> Terminal_Interface.Curses.Forms.Field_Types.User.Choice <B>is</B>
51 type User_Defined_Field_Type_With_Choice <B>is</B> <B>abstract</B> <B>new</B>
52 User_Defined_Field_Type <B>with</B> <B>null</B> <B>record</B>;
53 <I>-- This is the root of the mechanism we use to create field types in</I>
54 <I>-- Ada95 that allow the prev/next mechanism. You should your own type</I>
55 <I>-- derive from this one and implement the Field_Check, Character_Check</I>
56 <I>-- Next and Previous functions for your own type.</I>
58 type User_Defined_Field_Type_With_Choice_Access <B>is</B> <B>access</B> <B>all</B>
59 User_Defined_Field_Type_With_Choice'Class;
63 Typ : User_Defined_Field_Type_With_Choice) <B>return</B> Boolean
64 <B>is</B> <B>abstract</B>;
65 <I>-- If True is returned, the function successfully generated a next</I>
66 <I>-- value into the fields buffer.</I>
68 <B>function</B> Previous
70 Typ : User_Defined_Field_Type_With_Choice) <B>return</B> Boolean
71 <B>is</B> <B>abstract</B>;
72 <I>-- If True is returned, the function successfully generated a previous</I>
73 <I>-- value into the fields buffer.</I>
75 <I>-- +----------------------------------------------------------------------</I>
76 <I>-- | Private Part.</I>
79 <B>use</B> type Interfaces.C.Int;
81 <B>function</B> Generic_Next (Fld : Field;
82 Usr : System.Address) <B>return</B> <A HREF="terminal_interface-curses-aux_s.html#36:12">C_Int</A>;
83 <B>pragma</B> Convention (C, Generic_Next);
84 <I>-- This is the generic next Choice_Function for the low-level fieldtype</I>
85 <I>-- representing all the User_Defined_Field_Type derivates. It routes</I>
86 <I>-- the call to the Next implementation for the type.</I>
88 <B>function</B> Generic_Prev (Fld : Field;
89 Usr : System.Address) <B>return</B> <A HREF="terminal_interface-curses-aux_s.html#36:12">C_Int</A>;
90 <B>pragma</B> Convention (C, Generic_Prev);
91 <I>-- This is the generic prev Choice_Function for the low-level fieldtype</I>
92 <I>-- representing all the User_Defined_Field_Type derivates. It routes</I>
93 <I>-- the call to the Previous implementation for the type.</I>
95 <B>end</B> Terminal_Interface.Curses.Forms.Field_Types.User.Choice;
101 This is BETA software. The interface is subject to change without notice.<P>
102 <!-- Do NOT delete my name or the tool name from below; -->
103 <!-- giving me credit is a condition of use of ada2html -->
104 <P><I>This hypertext format was generated by <A HREF="http://www.adahome.com/Tutorials/Lovelace/dwheeler.htm">David A. Wheeler</A>'s <A HREF="http://www.adahome.com/Resources/Tools/ada2html/ada2html.htm">ada2html</A></I>