doc/html/ada/terminal_interface-curses-forms-field_types-user-choice__adb.htm

   1 <HTML><HEAD><TITLE>terminal_interface-curses-forms-field_types-user-choice.adb</TITLE></HEAD>
   2 <BODY>
   3 <HR><DIV ALIGN="center"><H1> File : terminal_interface-curses-forms-field_types-user-choice.adb </H1></DIV><HR>
   4 <PRE>
   5 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
   6 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
   7 <FONT COLOR=green><EM>--                           <A HREF="http://www.gnat.com">GNAT</A> ncurses Binding                           --</EM></FONT>
   8 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
   9 <FONT COLOR=green><EM>--          Terminal_Interface.Curses.Forms.Field_Types.User.Choice         --</EM></FONT>
  10 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  11 <FONT COLOR=green><EM>--                                 B O D Y                                  --</EM></FONT>
  12 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  13 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
  14 <FONT COLOR=green><EM>-- Copyright (c) 1998 Free Software Foundation, Inc.                        --</EM></FONT>
  15 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  16 <FONT COLOR=green><EM>-- Permission is hereby granted, free of charge, to any person obtaining a  --</EM></FONT>
  17 <FONT COLOR=green><EM>-- copy of this software and associated documentation files (the            --</EM></FONT>
  18 <FONT COLOR=green><EM>-- "Software"), to deal in the Software without restriction, including      --</EM></FONT>
  19 <FONT COLOR=green><EM>-- without limitation the rights to use, copy, modify, merge, publish,      --</EM></FONT>
  20 <FONT COLOR=green><EM>-- distribute, distribute with modifications, sublicense, and/or sell       --</EM></FONT>
  21 <FONT COLOR=green><EM>-- copies of the Software, and to permit persons to whom the Software is    --</EM></FONT>
  22 <FONT COLOR=green><EM>-- furnished to do so, subject to the following conditions:                 --</EM></FONT>
  23 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  24 <FONT COLOR=green><EM>-- The above copyright notice and this permission notice shall be included  --</EM></FONT>
  25 <FONT COLOR=green><EM>-- in all copies or substantial portions of the Software.                   --</EM></FONT>
  26 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  27 <FONT COLOR=green><EM>-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  --</EM></FONT>
  28 <FONT COLOR=green><EM>-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               --</EM></FONT>
  29 <FONT COLOR=green><EM>-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   --</EM></FONT>
  30 <FONT COLOR=green><EM>-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   --</EM></FONT>
  31 <FONT COLOR=green><EM>-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    --</EM></FONT>
  32 <FONT COLOR=green><EM>-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    --</EM></FONT>
  33 <FONT COLOR=green><EM>-- THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               --</EM></FONT>
  34 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  35 <FONT COLOR=green><EM>-- Except as contained in this notice, the name(s) of the above copyright   --</EM></FONT>
  36 <FONT COLOR=green><EM>-- holders shall not be used in advertising or otherwise to promote the     --</EM></FONT>
  37 <FONT COLOR=green><EM>-- sale, use or other dealings in this Software without prior written       --</EM></FONT>
  38 <FONT COLOR=green><EM>-- authorization.                                                           --</EM></FONT>
  39 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
  40 <FONT COLOR=green><EM>--  Author:  <A HREF="http://www.familiepfeifer.de/juergen">J&uuml;rgen Pfeifer</A>, 1996</EM></FONT>
  41 <FONT COLOR=green><EM>--  Contact: <A HREF="http://www.familiepfeifer.de/Contact.aspx?Lang=en">www.familiepfeifer.de/Contact.aspx?Lang=en</A></EM></FONT>
  42 <FONT COLOR=green><EM>--  Version Control:</EM></FONT>
  43 <FONT COLOR=green><EM>--  @Revision: 1.9 @</EM></FONT>
  44 <FONT COLOR=green><EM>--  Binding Version 01.00</EM></FONT>
  45 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
  46 <b>with</b> Ada.Unchecked_Conversion;
  47 <b>with</b> <A HREF="interfac__ads.htm#23_9">Interfaces</A>.C;
  48 <b>with</b> <A HREF="terminal_interface__ads.htm#42_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#49_28">Curses</A>.<A HREF="terminal_interface-curses-aux__ads.htm#51_35">Aux</A>; <b>use</b> <A HREF="terminal_interface__ads.htm#42_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#49_28">Curses</A>.<A HREF="terminal_interface-curses-aux__ads.htm#51_35">Aux</A>;
  49
  50 <b>package</b> <b>body</b> <A HREF="terminal_interface__ads.htm#42_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#49_28">Curses</A>.<A HREF="terminal_interface-curses-forms__ads.htm#49_35">Forms</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#44_41">Field_Types</A>.<A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#44_53">User</A>.<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#44_58">Choice</A><FONT COLOR=red><A NAME="46_63"></A></FONT> <b>is</b>
  51
  52    <b>use</b> <b>type</b> <A HREF="interfac__ads.htm#23_9">Interfaces</A>.C.int;
  53
  54    <b>function</b> <FONT COLOR=red><A NAME="50_13">To_Argument_Access</A></FONT> <b>is</b> <b>new</b> Ada.Unchecked_Conversion
  55      (System.Address, <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A>);
  56
  57    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#83_13">Generic_Next</A><FONT COLOR=red><A NAME="53_13"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#83_27">Fld</A> : <A HREF="terminal_interface-curses-forms__ads.htm#56_9">Field</A>;
  58                           <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#84_27">Usr</A> : System.Address) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#49_12">C_Int</A>
  59    <b>is</b>
  60       <FONT COLOR=red><A NAME="56_7">Result</A></FONT> : Boolean;
  61       <FONT COLOR=red><A NAME="57_7">Udf</A></FONT>    : <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#58_9">User_Defined_Field_Type_With_Choice_Access</A> :=
  62         <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#58_9">User_Defined_Field_Type_With_Choice_Access</A>
  63         (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#50_13">To_Argument_Access</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#84_27">Usr</A>).<A HREF="terminal_interface-curses-forms-field_types__ads.htm#213_7">Typ</A>);
  64    <b>begin</b>
  65       <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#56_7">Result</A> := <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#61_13">Next</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#83_27">Fld</A>, <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#57_7">Udf</A>.<b>all</b>);
  66       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#49_12">C_Int</A> (Boolean'Pos (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#56_7">Result</A>));
  67    <b>end</b> Generic_Next;
  68
  69    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#90_13">Generic_Prev</A><FONT COLOR=red><A NAME="65_13"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#90_27">Fld</A> : <A HREF="terminal_interface-curses-forms__ads.htm#56_9">Field</A>;
  70                           <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#91_27">Usr</A> : System.Address) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#49_12">C_Int</A>
  71    <b>is</b>
  72       <FONT COLOR=red><A NAME="68_7">Result</A></FONT> : Boolean;
  73       <FONT COLOR=red><A NAME="69_7">Udf</A></FONT>    : <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#58_9">User_Defined_Field_Type_With_Choice_Access</A> :=
  74         <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#58_9">User_Defined_Field_Type_With_Choice_Access</A>
  75         (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#50_13">To_Argument_Access</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#91_27">Usr</A>).<A HREF="terminal_interface-curses-forms-field_types__ads.htm#213_7">Typ</A>);
  76    <b>begin</b>
  77       <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#68_7">Result</A> := <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#68_13">Previous</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#90_27">Fld</A>, <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#69_7">Udf</A>.<b>all</b>);
  78       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#49_12">C_Int</A> (Boolean'Pos (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#68_7">Result</A>));
  79    <b>end</b> Generic_Prev;
  80
  81    <FONT COLOR=green><EM>--  -----------------------------------------------------------------------</EM></FONT>
  82    <FONT COLOR=green><EM>--</EM></FONT>
  83    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#81_13">C_Generic_Choice</A><FONT COLOR=red><A NAME="79_13"></A></FONT> <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A>
  84    <b>is</b>
  85       <FONT COLOR=red><A NAME="81_7">Res</A></FONT> : <A HREF="terminal_interface-curses-aux__ads.htm#79_12">Eti_Error</A>;
  86       <FONT COLOR=red><A NAME="82_7">T</A></FONT>   : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A>;
  87    <b>begin</b>
  88       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#143_4">M_Generic_Choice</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A> <b>then</b>
  89          <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#82_7">T</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#223_13">New_Fieldtype</A> (<A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#84_13">Generic_Field_Check</A>'<b>Access</b>,
  90                              <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#91_13">Generic_Char_Check</A>'<b>Access</b>);
  91          <b>if</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#82_7">T</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A> <b>then</b>
  92             <b>raise</b> <A HREF="terminal_interface-curses-forms__ads.htm#289_4">Form_Exception</A>;
  93          <b>else</b>
  94             <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#81_7">Res</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#228_13">Set_Fieldtype_Arg</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#82_7">T</A>,
  95                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#163_13">Make_Arg</A>'<b>Access</b>,
  96                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#168_13">Copy_Arg</A>'<b>Access</b>,
  97                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#173_14">Free_Arg</A>'<b>Access</b>);
  98             <b>if</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#81_7">Res</A> /= <A HREF="terminal_interface-curses-aux__ads.htm#81_4">E_Ok</A> <b>then</b>
  99                <A HREF="terminal_interface-curses-aux__ads.htm#97_14">Eti_Exception</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#81_7">Res</A>);
 100             <b>end</b> <b>if</b>;
 101
 102             <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#81_7">Res</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#235_13">Set_Fieldtype_Choice</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#82_7">T</A>,
 103                                          <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#83_13">Generic_Next</A>'<b>Access</b>,
 104                                          <A HREF="terminal_interface-curses-forms-field_types-user-choice__ads.htm#90_13">Generic_Prev</A>'<b>Access</b>);
 105             <b>if</b> <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#81_7">Res</A> /= <A HREF="terminal_interface-curses-aux__ads.htm#81_4">E_Ok</A> <b>then</b>
 106                <A HREF="terminal_interface-curses-aux__ads.htm#97_14">Eti_Exception</A> (<A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#81_7">Res</A>);
 107             <b>end</b> <b>if</b>;
 108          <b>end</b> <b>if</b>;
 109          <A HREF="terminal_interface-curses-forms-field_types__ads.htm#143_4">M_Generic_Choice</A> := <A HREF="terminal_interface-curses-forms-field_types-user-choice__adb.htm#82_7">T</A>;
 110       <b>end</b> <b>if</b>;
 111       <b>pragma</b> Assert (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#143_4">M_Generic_Choice</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A>);
 112       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#143_4">M_Generic_Choice</A>;
 113    <b>end</b> C_Generic_Choice;
 114
 115 <b>end</b> Terminal_Interface.Curses.Forms.Field_Types.User.Choice;
 116 </PRE></BODY></HTML>