ncurses 5.5
[ncurses.git] / doc / html / ada / terminal_interface-curses-forms-field_types-user-choice__adb.htm
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4 <HR><DIV ALIGN="center"><H1> File : terminal_interface-curses-forms-field_types-user-choice.adb </H1></DIV><HR>
5 <PRE>
6 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
7 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
8 <FONT COLOR=green><EM>--                           <A HREF="http://www.gnat.com">GNAT</A> ncurses Binding                           --</EM></FONT>
9 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
10 <FONT COLOR=green><EM>--          Terminal_Interface.Curses.Forms.Field_Types.User.Choice         --</EM></FONT>
11 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
12 <FONT COLOR=green><EM>--                                 B O D Y                                  --</EM></FONT>
13 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
14 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
15 <FONT COLOR=green><EM>-- Copyright (c) 1998,2004 Free Software Foundation, Inc.                   --</EM></FONT>
16 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
17 <FONT COLOR=green><EM>-- Permission is hereby granted, free of charge, to any person obtaining a  --</EM></FONT>
18 <FONT COLOR=green><EM>-- copy of this software and associated documentation files (the            --</EM></FONT>
19 <FONT COLOR=green><EM>-- "Software"), to deal in the Software without restriction, including      --</EM></FONT>
20 <FONT COLOR=green><EM>-- without limitation the rights to use, copy, modify, merge, publish,      --</EM></FONT>
21 <FONT COLOR=green><EM>-- distribute, distribute with modifications, sublicense, and/or sell       --</EM></FONT>
22 <FONT COLOR=green><EM>-- copies of the Software, and to permit persons to whom the Software is    --</EM></FONT>
23 <FONT COLOR=green><EM>-- furnished to do so, subject to the following conditions:                 --</EM></FONT>
24 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
25 <FONT COLOR=green><EM>-- The above copyright notice and this permission notice shall be included  --</EM></FONT>
26 <FONT COLOR=green><EM>-- in all copies or substantial portions of the Software.                   --</EM></FONT>
27 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
28 <FONT COLOR=green><EM>-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  --</EM></FONT>
29 <FONT COLOR=green><EM>-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               --</EM></FONT>
30 <FONT COLOR=green><EM>-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   --</EM></FONT>
31 <FONT COLOR=green><EM>-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   --</EM></FONT>
32 <FONT COLOR=green><EM>-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    --</EM></FONT>
33 <FONT COLOR=green><EM>-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    --</EM></FONT>
34 <FONT COLOR=green><EM>-- THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               --</EM></FONT>
35 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
36 <FONT COLOR=green><EM>-- Except as contained in this notice, the name(s) of the above copyright   --</EM></FONT>
37 <FONT COLOR=green><EM>-- holders shall not be used in advertising or otherwise to promote the     --</EM></FONT>
38 <FONT COLOR=green><EM>-- sale, use or other dealings in this Software without prior written       --</EM></FONT>
39 <FONT COLOR=green><EM>-- authorization.                                                           --</EM></FONT>
40 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
41 <FONT COLOR=green><EM>--  Author:  Juergen Pfeifer, 1996</EM></FONT>
42 <FONT COLOR=green><EM>--  Version Control:</EM></FONT>
43 <FONT COLOR=green><EM>--  @Revision: 1.13 @</EM></FONT>
44 <FONT COLOR=green><EM>--  @Date: 2004/08/21 21:37:00 @</EM></FONT>
45 <FONT COLOR=green><EM>--  Binding Version 01.00</EM></FONT>
46 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
47 <b>with</b> Ada.Unchecked_Conversion;
48 <b>with</b> <A HREF="interfac__ads.htm#ref_23_9">Interfaces</A>.C;
49 <b>with</b> <A HREF="terminal_interface__ads.htm#ref_41_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#ref_49_28">Curses</A>.<A HREF="terminal_interface-curses-aux__ads.htm#ref_50_35">Aux</A>; <b>use</b> <A HREF="terminal_interface__ads.htm#ref_41_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#ref_49_28">Curses</A>.<A HREF="terminal_interface-curses-aux__ads.htm#ref_50_35">Aux</A>;
50
51 <b>package</b> <b>body</b> <A HREF="terminal_interface__ads.htm#ref_41_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#ref_49_28">Curses</A>.<A HREF="terminal_interface-curses-forms__ads.htm#ref_48_35">Forms</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_43_41">Field_Types</A>.<A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_43_53">User</A>.<FONT COLOR=red><A NAME="ref_46_63" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_43_58">Choice</A></FONT> <b>is</b>
52
53    <b>use</b> <b>type</b> <A HREF="interfac__ads.htm#ref_23_9">Interfaces</A>.C.int;
54
55    <b>function</b> <FONT COLOR=red><A NAME="ref_50_13">To_Argument_Access</A></FONT> <b>is</b> <b>new</b> Ada.Unchecked_Conversion
56      (System.Address, <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_216_9">Argument_Access</A>);
57
58    <b>function</b> <FONT COLOR=red><A NAME="ref_53_13" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_82_13">Generic_Next</A></FONT> (<FONT COLOR=red><A NAME="ref_53_27" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_82_27">Fld</A></FONT> : <A HREF="terminal_interface-curses-forms__ads.htm#ref_55_9">Field</A>;
59                           <FONT COLOR=red><A NAME="ref_54_27" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_83_27">Usr</A></FONT> : System.Address) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_48_12">C_Int</A>
60    <b>is</b>
61       <FONT COLOR=red><A NAME="ref_56_7">Result</A></FONT> : Boolean;
62       <FONT COLOR=red><A NAME="ref_57_7">Udf</A></FONT>    : <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> :=
63         <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_57_9">User_Defined_Field_Type_With_Choice_Access</A>
64         (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_50_13">To_Argument_Access</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_83_27">Usr</A>).<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_212_7">Typ</A>);
65    <b>begin</b>
66       <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_56_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_82_27">Fld</A>, <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_57_7">Udf</A>.<b>all</b>);
67       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_48_12">C_Int</A> (Boolean'Pos (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_56_7">Result</A>));
68    <b>end</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_82_13">Generic_Next</A>;
69
70    <b>function</b> <FONT COLOR=red><A NAME="ref_65_13" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_89_13">Generic_Prev</A></FONT> (<FONT COLOR=red><A NAME="ref_65_27" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_89_27">Fld</A></FONT> : <A HREF="terminal_interface-curses-forms__ads.htm#ref_55_9">Field</A>;
71                           <FONT COLOR=red><A NAME="ref_66_27" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_90_27">Usr</A></FONT> : System.Address) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_48_12">C_Int</A>
72    <b>is</b>
73       <FONT COLOR=red><A NAME="ref_68_7">Result</A></FONT> : Boolean;
74       <FONT COLOR=red><A NAME="ref_69_7">Udf</A></FONT>    : <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> :=
75         <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_57_9">User_Defined_Field_Type_With_Choice_Access</A>
76         (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_50_13">To_Argument_Access</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_90_27">Usr</A>).<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_212_7">Typ</A>);
77    <b>begin</b>
78       <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_68_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_89_27">Fld</A>, <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_69_7">Udf</A>.<b>all</b>);
79       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_48_12">C_Int</A> (Boolean'Pos (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_68_7">Result</A>));
80    <b>end</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_89_13">Generic_Prev</A>;
81
82    <FONT COLOR=green><EM>--  -----------------------------------------------------------------------</EM></FONT>
83    <FONT COLOR=green><EM>--</EM></FONT>
84    <b>function</b> <FONT COLOR=red><A NAME="ref_79_13" HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_80_13">C_Generic_Choice</A></FONT> <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_132_9">C_Field_Type</A>
85    <b>is</b>
86       <FONT COLOR=red><A NAME="ref_81_7">Res</A></FONT> : <A HREF="terminal_interface-curses-aux__ads.htm#ref_78_12">Eti_Error</A>;
87       <FONT COLOR=red><A NAME="ref_82_7">T</A></FONT>   : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_132_9">C_Field_Type</A>;
88    <b>begin</b>
89       <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>
90          <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_82_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_83_13">Generic_Field_Check</A>'<b>Access</b>,
91                              <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_90_13">Generic_Char_Check</A>'<b>Access</b>);
92          <b>if</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_82_7">T</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_134_4">Null_Field_Type</A> <b>then</b>
93             <b>raise</b> <A HREF="terminal_interface-curses-forms__ads.htm#ref_286_4">Form_Exception</A>;
94          <b>else</b>
95             <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_81_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_82_7">T</A>,
96                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_162_13">Make_Arg</A>'<b>Access</b>,
97                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_167_13">Copy_Arg</A>'<b>Access</b>,
98                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_172_14">Free_Arg</A>'<b>Access</b>);
99             <b>if</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_81_7">Res</A> /= <A HREF="terminal_interface-curses-aux__ads.htm#ref_80_4">E_Ok</A> <b>then</b>
100                <A HREF="terminal_interface-curses-aux__ads.htm#ref_96_14">Eti_Exception</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_81_7">Res</A>);
101             <b>end</b> <b>if</b>;
102
103             <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_81_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_82_7">T</A>,
104                                          <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_82_13">Generic_Next</A>'<b>Access</b>,
105                                          <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_89_13">Generic_Prev</A>'<b>Access</b>);
106             <b>if</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_81_7">Res</A> /= <A HREF="terminal_interface-curses-aux__ads.htm#ref_80_4">E_Ok</A> <b>then</b>
107                <A HREF="terminal_interface-curses-aux__ads.htm#ref_96_14">Eti_Exception</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#ref_81_7">Res</A>);
108             <b>end</b> <b>if</b>;
109          <b>end</b> <b>if</b>;
110          <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_82_7">T</A>;
111       <b>end</b> <b>if</b>;
112       <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>);
113       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_142_4">M_Generic_Choice</A>;
114    <b>end</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_80_13">C_Generic_Choice</A>;
115
116 <b>end</b> <A HREF="terminal_interface__ads.htm#ref_41_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#ref_49_28">Curses</A>.<A HREF="terminal_interface-curses-forms__ads.htm#ref_48_35">Forms</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_43_41">Field_Types</A>.<A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_43_53">User</A>.<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#ref_43_58">Choice</A>;
117 </PRE></BODY></HTML>