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<HTML><HEAD><TITLE>terminal_interface-curses-forms-field_types.ads</TITLE></HEAD><BODY><HR><DIV ALIGN="center"><H1> File : terminal_interface-curses-forms-field_types.ads </H1></DIV><HR><PRE><FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT><FONT COLOR=green><EM>-- --</EM></FONT><FONT COLOR=green><EM>-- <A HREF="http://www.gnat.com">GNAT</A> ncurses Binding --</EM></FONT><FONT COLOR=green><EM>-- --</EM></FONT><FONT COLOR=green><EM>-- Terminal_Interface.Curses.Forms.Field_Types --</EM></FONT><FONT COLOR=green><EM>-- --</EM></FONT><FONT COLOR=green><EM>-- S P E C --</EM></FONT><FONT COLOR=green><EM>-- --</EM></FONT><FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT><FONT COLOR=green><EM>-- Copyright (c) 1998 Free Software Foundation, Inc. --</EM></FONT><FONT COLOR=green><EM>-- --</EM></FONT><FONT COLOR=green><EM>-- Permission is hereby granted, free of charge, to any person obtaining a --</EM></FONT><FONT COLOR=green><EM>-- copy of this software and associated documentation files (the --</EM></FONT><FONT COLOR=green><EM>-- "Software"), to deal in the Software without restriction, including --</EM></FONT><FONT COLOR=green><EM>-- without limitation the rights to use, copy, modify, merge, publish, --</EM></FONT><FONT COLOR=green><EM>-- distribute, distribute with modifications, sublicense, and/or sell --</EM></FONT><FONT COLOR=green><EM>-- copies of the Software, and to permit persons to whom the Software is --</EM></FONT><FONT COLOR=green><EM>-- furnished to do so, subject to the following conditions: --</EM></FONT><FONT COLOR=green><EM>-- --</EM></FONT><FONT COLOR=green><EM>-- The above copyright notice and this permission notice shall be included --</EM></FONT><FONT COLOR=green><EM>-- in all copies or substantial portions of the Software. --</EM></FONT><FONT COLOR=green><EM>-- --</EM></FONT><FONT COLOR=green><EM>-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --</EM></FONT><FONT COLOR=green><EM>-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --</EM></FONT><FONT COLOR=green><EM>-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. --</EM></FONT><FONT COLOR=green><EM>-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, --</EM></FONT><FONT COLOR=green><EM>-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR --</EM></FONT><FONT COLOR=green><EM>-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR --</EM></FONT><FONT COLOR=green><EM>-- THE USE OR OTHER DEALINGS IN THE SOFTWARE. --</EM></FONT><FONT COLOR=green><EM>-- --</EM></FONT><FONT COLOR=green><EM>-- Except as contained in this notice, the name(s) of the above copyright --</EM></FONT><FONT COLOR=green><EM>-- holders shall not be used in advertising or otherwise to promote the --</EM></FONT><FONT COLOR=green><EM>-- sale, use or other dealings in this Software without prior written --</EM></FONT><FONT COLOR=green><EM>-- authorization. --</EM></FONT><FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT><FONT COLOR=green><EM>-- Author: Juergen Pfeifer, 1996</EM></FONT><FONT COLOR=green><EM>-- Version Control:</EM></FONT><FONT COLOR=green><EM>-- @Revision: 1.14 @</EM></FONT><FONT COLOR=green><EM>-- Binding Version 01.00</EM></FONT><FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT><b>with</b> Interfaces.C;<b>package</b> Terminal_Interface.Curses.Forms.Field_Types <b>is</b> <b>pragma</b> Preelaborate (Terminal_Interface.Curses.Forms.Field_Types); <b>use</b> <b>type</b><FONT COLOR=red><A NAME="46_12"> </A></FONT>Interfaces.C.int; <b>subtype</b> C_Int <b>is</b> Interfaces.C.int; <FONT COLOR=green><EM>-- |=====================================================================</EM></FONT> <FONT COLOR=green><EM>-- | Man page <A HREF="../man/form_fieldtype.3x.html">form_fieldtype.3x</A></EM></FONT> <FONT COLOR=green><EM>-- |=====================================================================</EM></FONT> <b>type</b> Field_Type <b>is</b> <b>abstract</b> <b>tagged</b> <b>null</b> <b>record</b>; <FONT COLOR=green><EM>-- Abstract base type for all field types. A concrete field type</EM></FONT> <FONT COLOR=green><EM>-- is an extension that adds some data elements describing formats or</EM></FONT> <FONT COLOR=green><EM>-- boundary values for the type and validation routines.</EM></FONT> <FONT COLOR=green><EM>-- For the builtin low-level fieldtypes, the validation routines are</EM></FONT> <FONT COLOR=green><EM>-- already defined by the low-level C library.</EM></FONT> <FONT COLOR=green><EM>-- The builtin types like Alpha or AlphaNumeric etc. are defined in</EM></FONT> <FONT COLOR=green><EM>-- child packages of this package. You may use one of them as example</EM></FONT> <FONT COLOR=green><EM>-- how to create you own child packages for low-level field types that</EM></FONT> <FONT COLOR=green><EM>-- you may have already written in C.</EM></FONT> <b>type</b> Field_Type_Access <b>is</b> <b>access</b> <b>all</b> Field_Type'Class; <FONT COLOR=green><EM>-- #1A NAME="AFU_1"#2|</EM></FONT> <b>procedure</b> Set_Field_Type (<FONT COLOR=red><A NAME="67_30">Fld</A></FONT> : <b>in</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#52_9">Field</A>; Fld_Type : <b>in</b> Field_Type) <b>is</b> <b>abstract</b>; <FONT COLOR=green><EM>-- AKA: <A HREF="../man/form_fieldtype.3x.html">set_field_type()</A></EM></FONT> <FONT COLOR=green><EM>-- But: we hide the vararg mechanism of the C interface. You always</EM></FONT> <FONT COLOR=green><EM>-- have to pass a single Field_Type parameter.</EM></FONT> <FONT COLOR=green><EM>-- ---------------------------------------------------------------------</EM></FONT> <FONT COLOR=green><EM>-- |=====================================================================</EM></FONT> <FONT COLOR=green><EM>-- | Man page <A HREF="../man/form_field_validation.3x.html">form_field_validation.3x</A></EM></FONT> <FONT COLOR=green><EM>-- |=====================================================================</EM></FONT> <FONT COLOR=green><EM>-- #1A NAME="AFU_2"#2|</EM></FONT> <b>function</b> Get_Type (Fld : <b>in</b> Field) <b>return</b> Field_Type_Access; <FONT COLOR=green><EM>-- AKA: <A HREF="../man/form_field_validation.3x.html">field_type()</A></EM></FONT> <FONT COLOR=green><EM>-- AKA: field_arg()</EM></FONT> <FONT COLOR=green><EM>-- In Ada95 we can combine these. If you try to retrieve the field type</EM></FONT> <FONT COLOR=green><EM>-- that is not defined as extension of the abstract tagged type above,</EM></FONT> <FONT COLOR=green><EM>-- you will raise a Form_Exception.</EM></FONT> <FONT COLOR=green><EM>-- This is not inlined</EM></FONT> <FONT COLOR=green><EM>-- +----------------------------------------------------------------------</EM></FONT> <FONT COLOR=green><EM>-- | Private Part.</EM></FONT> <FONT COLOR=green><EM>-- | Most of this is used by the implementations of the child packages.</EM></FONT> <FONT COLOR=green><EM>-- |</EM></FONT><b>private</b> <b>type</b> Makearg_Function <b>is</b> <b>access</b> <b>function</b> (Args : System.Address) <b>return</b> System.Address; <b>pragma</b> Convention (C, Makearg_Function); <b>type</b> Copyarg_Function <b>is</b> <b>access</b> <b>function</b> (Usr : System.Address) <b>return</b> System.Address; <b>pragma</b> Convention (C, Copyarg_Function); <b>type</b> Freearg_Function <b>is</b> <b>access</b> <b>procedure</b> (Usr : System.Address); <b>pragma</b> Convention (C, Freearg_Function); <b>type</b> Field_Check_Function<FONT COLOR=red><A NAME="105_29"> </A></FONT><b>is</b> <b>access</b> <b>function</b> (Fld : Field; Usr : System.Address) <b>return</b> C_Int; <b>pragma</b> Convention (C, Field_Check_Function); <b>type</b> Char_Check_Function<FONT COLOR=red><A NAME="109_28"> </A></FONT><b>is</b> <b>access</b> <b>function</b> (Ch : C_Int<A HREF="terminal_interface-curses-forms-field_types__ads.htm#108_9">;</A> Usr : System.Address) <b>return</b> C_Int; <b>pragma</b> Convention (C, Char_Check_Function); <b>type</b> Choice_Function <b>is</b> <b>access</b> <b>function</b> (Fld : Field; Usr : System.Address) <b>return</b> C_Int; <b>pragma</b> Convention (C, Choice_Function); <FONT COLOR=green><EM>-- +----------------------------------------------------------------------</EM></FONT> <FONT COLOR=green><EM>-- | This must be in sync with the FIELDTYPE structure in form.h</EM></FONT> <FONT COLOR=green><EM>-- |</EM></FONT>⌨️ 快捷键说明
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