ncurses 6.1 - patch 20190727
[ncurses.git] / doc / html / ada / terminal_interface-curses-forms-field_types-user-choice__adb.htm
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16 <HR><DIV style="text-align:center"><H1> File : terminal_interface-curses-forms-field_types-user-choice.adb </H1></DIV><HR>
17 <PRE>
18 <span class="comment"><EM>------------------------------------------------------------------------------</EM></span>
19 <span class="comment"><EM>--                                                                          --</EM></span>
20 <span class="comment"><EM>--                           <A HREF="http://www.gnat.com">GNAT</A> ncurses Binding                           --</EM></span>
21 <span class="comment"><EM>--                                                                          --</EM></span>
22 <span class="comment"><EM>--          Terminal_Interface.Curses.Forms.Field_Types.User.Choice         --</EM></span>
23 <span class="comment"><EM>--                                                                          --</EM></span>
24 <span class="comment"><EM>--                                 B O D Y                                  --</EM></span>
25 <span class="comment"><EM>--                                                                          --</EM></span>
26 <span class="comment"><EM>------------------------------------------------------------------------------</EM></span>
27 <span class="comment"><EM>-- Copyright (c) 1998-2011,2014 Free Software Foundation, Inc.              --</EM></span>
28 <span class="comment"><EM>--                                                                          --</EM></span>
29 <span class="comment"><EM>-- Permission is hereby granted, free of charge, to any person obtaining a  --</EM></span>
30 <span class="comment"><EM>-- copy of this software and associated documentation files (the            --</EM></span>
31 <span class="comment"><EM>-- "Software"), to deal in the Software without restriction, including      --</EM></span>
32 <span class="comment"><EM>-- without limitation the rights to use, copy, modify, merge, publish,      --</EM></span>
33 <span class="comment"><EM>-- distribute, distribute with modifications, sublicense, and/or sell       --</EM></span>
34 <span class="comment"><EM>-- copies of the Software, and to permit persons to whom the Software is    --</EM></span>
35 <span class="comment"><EM>-- furnished to do so, subject to the following conditions:                 --</EM></span>
36 <span class="comment"><EM>--                                                                          --</EM></span>
37 <span class="comment"><EM>-- The above copyright notice and this permission notice shall be included  --</EM></span>
38 <span class="comment"><EM>-- in all copies or substantial portions of the Software.                   --</EM></span>
39 <span class="comment"><EM>--                                                                          --</EM></span>
40 <span class="comment"><EM>-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  --</EM></span>
41 <span class="comment"><EM>-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               --</EM></span>
42 <span class="comment"><EM>-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   --</EM></span>
43 <span class="comment"><EM>-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   --</EM></span>
44 <span class="comment"><EM>-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    --</EM></span>
45 <span class="comment"><EM>-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    --</EM></span>
46 <span class="comment"><EM>-- THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               --</EM></span>
47 <span class="comment"><EM>--                                                                          --</EM></span>
48 <span class="comment"><EM>-- Except as contained in this notice, the name(s) of the above copyright   --</EM></span>
49 <span class="comment"><EM>-- holders shall not be used in advertising or otherwise to promote the     --</EM></span>
50 <span class="comment"><EM>-- sale, use or other dealings in this Software without prior written       --</EM></span>
51 <span class="comment"><EM>-- authorization.                                                           --</EM></span>
52 <span class="comment"><EM>------------------------------------------------------------------------------</EM></span>
53 <span class="comment"><EM>--  Author:  Juergen Pfeifer, 1996</EM></span>
54 <span class="comment"><EM>--  Version Control:</EM></span>
55 <span class="comment"><EM>--  @Revision: 1.20 @</EM></span>
56 <span class="comment"><EM>--  @Date: 2014/05/24 21:31:05 @</EM></span>
57 <span class="comment"><EM>--  Binding Version 01.00</EM></span>
58 <span class="comment"><EM>------------------------------------------------------------------------------</EM></span>
59 <b>with</b> System.Address_To_Access_Conversions;
60 <b>with</b> <A HREF="terminal_interface__ads.htm#ref_42_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#ref_47_28">Curses</A>.<A HREF="terminal_interface-curses-aux__ads.htm#ref_45_35">Aux</A>; <b>use</b> <A HREF="terminal_interface__ads.htm#ref_42_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#ref_47_28">Curses</A>.<A HREF="terminal_interface-curses-aux__ads.htm#ref_45_35">Aux</A>;
61
62 <b>package</b> <b>body</b> <A HREF="terminal_interface__ads.htm#ref_42_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#ref_47_28">Curses</A>.<A HREF="terminal_interface-curses-forms__ads.htm#ref_45_35">Forms</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_44_41">Field_Types</A>.<A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_44_53">User</A>.<span class="symbol"><A NAME="ref_45_63" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_44_58">Choice</A></span> <b>is</b>
63
64    <b>package</b> Argument_Conversions <b>is</b>
65       <b>new</b> System.Address_To_Access_Conversions (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_211_9">Argument</A>);
66
67    <b>function</b> <span class="symbol"><A NAME="ref_50_13" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_80_13">Generic_Next</A></span> (<span class="symbol"><A NAME="ref_50_27" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_80_27">Fld</A></span> : <A HREF="terminal_interface-curses-forms__ads.htm#ref_51_9">Field</A>;
68                           <span class="symbol"><A NAME="ref_51_27" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_81_27">Usr</A></span> : System.Address) <b>return</b> <A HREF="terminal_interface-curses__ads.htm#ref_2098_9">Curses_Bool</A>
69    <b>is</b>
70       <span class="symbol"><A NAME="ref_53_7">Result</A></span> : Boolean;
71       <span class="symbol"><A NAME="ref_54_7">Udf</A></span>    : <b>constant</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_57_9">User_Defined_Field_Type_With_Choice_Access</A> :=
72         <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_57_9">User_Defined_Field_Type_With_Choice_Access</A>
73         (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_216_9">Argument_Access</A> (Argument_Conversions.To_Pointer (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_81_27">Usr</A>)).<b>all</b>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_212_7">Typ</A>);
74    <b>begin</b>
75       <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_53_7">Result</A> := <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_60_13">Next</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_80_27">Fld</A>, <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_54_7">Udf</A>.<b>all</b>);
76       <b>return</b> <A HREF="terminal_interface-curses__ads.htm#ref_2098_9">Curses_Bool</A> (Boolean'Pos (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_53_7">Result</A>));
77    <b>end</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_80_13">Generic_Next</A>;
78
79    <b>function</b> <span class="symbol"><A NAME="ref_62_13" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_87_13">Generic_Prev</A></span> (<span class="symbol"><A NAME="ref_62_27" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_87_27">Fld</A></span> : <A HREF="terminal_interface-curses-forms__ads.htm#ref_51_9">Field</A>;
80                           <span class="symbol"><A NAME="ref_63_27" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_88_27">Usr</A></span> : System.Address) <b>return</b> <A HREF="terminal_interface-curses__ads.htm#ref_2098_9">Curses_Bool</A>
81    <b>is</b>
82       <span class="symbol"><A NAME="ref_65_7">Result</A></span> : Boolean;
83       <span class="symbol"><A NAME="ref_66_7">Udf</A></span>    : <b>constant</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_57_9">User_Defined_Field_Type_With_Choice_Access</A> :=
84         <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_57_9">User_Defined_Field_Type_With_Choice_Access</A>
85         (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_216_9">Argument_Access</A> (Argument_Conversions.To_Pointer (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_88_27">Usr</A>)).<b>all</b>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_212_7">Typ</A>);
86    <b>begin</b>
87       <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_65_7">Result</A> := <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_67_13">Previous</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_87_27">Fld</A>, <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_66_7">Udf</A>.<b>all</b>);
88       <b>return</b> <A HREF="terminal_interface-curses__ads.htm#ref_2098_9">Curses_Bool</A> (Boolean'Pos (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_65_7">Result</A>));
89    <b>end</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_87_13">Generic_Prev</A>;
90
91    <span class="comment"><EM>--  -----------------------------------------------------------------------</EM></span>
92    <span class="comment"><EM>--</EM></span>
93    <b>function</b> <span class="symbol"><A NAME="ref_76_13" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_78_13">C_Generic_Choice</A></span> <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_132_9">C_Field_Type</A>
94    <b>is</b>
95       <span class="symbol"><A NAME="ref_78_7">Res</A></span> : <A HREF="terminal_interface-curses-aux__ads.htm#ref_69_9">Eti_Error</A>;
96       <span class="symbol"><A NAME="ref_79_7">T</A></span>   : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_132_9">C_Field_Type</A>;
97    <b>begin</b>
98       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_142_4">M_Generic_Choice</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_134_4">Null_Field_Type</A> <b>then</b>
99          <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_79_7">T</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_222_13">New_Fieldtype</A> (<A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_81_13">Generic_Field_Check</A>'<b>Access</b>,
100                              <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_88_13">Generic_Char_Check</A>'<b>Access</b>);
101          <b>if</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_79_7">T</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_134_4">Null_Field_Type</A> <b>then</b>
102             <b>raise</b> <A HREF="terminal_interface-curses-forms__ads.htm#ref_287_4">Form_Exception</A>;
103          <b>else</b>
104             <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_78_7">Res</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_227_13">Set_Fieldtype_Arg</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_79_7">T</A>,
105                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_162_13">Make_Arg</A>'<b>Access</b>,
106                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_167_13">Copy_Arg</A>'<b>Access</b>,
107                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_172_14">Free_Arg</A>'<b>Access</b>);
108             <A HREF="terminal_interface-curses-aux__ads.htm#ref_86_14">Eti_Exception</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_78_7">Res</A>);
109
110             <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_78_7">Res</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_234_13">Set_Fieldtype_Choice</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_79_7">T</A>,
111                                          <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_80_13">Generic_Next</A>'<b>Access</b>,
112                                          <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_87_13">Generic_Prev</A>'<b>Access</b>);
113             <A HREF="terminal_interface-curses-aux__ads.htm#ref_86_14">Eti_Exception</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_78_7">Res</A>);
114          <b>end</b> <b>if</b>;
115          <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_142_4">M_Generic_Choice</A> := <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_79_7">T</A>;
116       <b>end</b> <b>if</b>;
117       <b>pragma</b> Assert (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_142_4">M_Generic_Choice</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_134_4">Null_Field_Type</A>);
118       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_142_4">M_Generic_Choice</A>;
119    <b>end</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_78_13">C_Generic_Choice</A>;
120
121 <b>end</b> <A HREF="terminal_interface__ads.htm#ref_42_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#ref_47_28">Curses</A>.<A HREF="terminal_interface-curses-forms__ads.htm#ref_45_35">Forms</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_44_41">Field_Types</A>.<A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_44_53">User</A>.<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_44_58">Choice</A>;
122 </PRE></BODY></HTML>