<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: <A HREF="http://www.familiepfeifer.de/juergen">Jürgen Pfeifer</A>, 1996</EM></FONT>
<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>
<FONT COLOR=green><EM>-- Version Control:</EM></FONT>
<FONT COLOR=green><EM>-- @Revision: 1.13 @</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="47_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="68_30">Fld</A></FONT> : <b>in</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#53_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="106_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="110_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#109_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>
<b>type</b> Low_Level_Field_Type <b>is</b>
<b>record</b>
<FONT COLOR=red><A NAME="123_10">Status</A></FONT> : <A HREF="interfac__ads.htm#23_9">Interfaces</A>.C.short;
<FONT COLOR=red><A NAME="124_10">Ref_Count</A></FONT> : Interfaces.C.long;
<FONT COLOR=red><A NAME="125_10">Left</A></FONT>, Right : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#93_9">System</A>.Address;
<FONT COLOR=red><A NAME="126_10">Makearg</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#97_9">Makearg_Function</A>;
<FONT COLOR=red><A NAME="127_10">Copyarg</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#101_9">Copyarg_Function</A>;
<FONT COLOR=red><A NAME="128_10">Freearg</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#105_9">Freearg_Function</A>;
<FONT COLOR=red><A NAME="129_10">Fcheck</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#109_9">Field_Check_Function</A>;
<FONT COLOR=red><A NAME="130_10">Ccheck</A></FONT><FONT COLOR=red><A NAME="130_16"> </A></FONT>: <A HREF="terminal_interface-curses-forms-field_types__ads.htm#113_9">Char_Check_Function</A>;
Next, Prev : Choice_Function;
<b>end</b> <b>record</b>;
<b>pragma</b> Convention (C, Low_Level_Field_Type);
<b>type</b> C_Field_Type <b>is</b> <b>access</b> <b>all</b> Low_Level_Field_Type;
Null_Field_Type : <b>constant</b> C_Field_Type := <b>null</b>;
<FONT COLOR=green><EM>-- +----------------------------------------------------------------------</EM></FONT>
<FONT COLOR=green><EM>-- | This four low-level fieldtypes are the ones associated with</EM></FONT>
<FONT COLOR=green><EM>-- | fieldtypes handled by this binding. Any other low-level fieldtype</EM></FONT>
<FONT COLOR=green><EM>-- | will result in a Form_Exception is function Get_Type.</EM></FONT>
<FONT COLOR=green><EM>-- |</EM></FONT>
<FONT COLOR=red><A NAME="143_4">M_Generic_Type</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A> := <b>null</b>;
<FONT COLOR=red><A NAME="144_4">M_Generic_Choice</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A> := <b>null</b>;
<FONT COLOR=red><A NAME="145_4">M_Builtin_Router</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A> := <b>null</b>;
M_Choice_Router : C_Field_Type := <b>null</b>;
<FONT COLOR=green><EM>-- Two wrapper functions to access those low-level fieldtypes defined</EM></FONT>
<FONT COLOR=green><EM>-- in this package.</EM></FONT>
<b>function</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#265_13">C_Builtin_Router</A><FONT COLOR=red><A NAME="150_13"></A></FONT> <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A>;
<b>function</b> C_Choice_Router <b>return</b> C_Field_Type;
<b>procedure</b> Wrap_Builtin (<FONT COLOR=red><A NAME="153_28">Fld</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#53_9">Field</A>;
<FONT COLOR=red><A NAME="154_28">Typ</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">Field_Type</A>'Class<A HREF="terminal_interface-curses-forms-field_types__ads.htm#149_13">;</A>
Cft : C_Field_Type := C_Builtin_Router);
<FONT COLOR=green><EM>-- This procedure has to be called by the Set_Field_Type implementation</EM></FONT>
<FONT COLOR=green><EM>-- for builtin low-level fieldtypes to replace it by an Ada95</EM></FONT>
<FONT COLOR=green><EM>-- conformant Field_Type object.</EM></FONT>
<FONT COLOR=green><EM>-- The parameter Cft must be C_Builtin_Router for regular low-level</EM></FONT>
<FONT COLOR=green><EM>-- fieldtypes (like TYP_ALPHA or TYP_ALNUM) and C_Choice_Router for</EM></FONT>
<FONT COLOR=green><EM>-- low-level fieldtypes witch choice functions (like TYP_ENUM).</EM></FONT>
<FONT COLOR=green><EM>-- Any other value will raise a Form_Exception.</EM></FONT>
<b>function</b> Make_Arg (Args : System.Address) <b>return</b> System.Address;
<b>pragma</b> Convention (C, Make_Arg);
<FONT COLOR=green><EM>-- This is the Makearg_Function for the internal low-level types</EM></FONT>
<FONT COLOR=green><EM>-- introduced by this binding.</EM></FONT>
<b>function</b> Copy_Arg (Usr<A HREF="terminal_interface-curses-forms-field_types__ads.htm#168_13"> </A>: System.Address) <b>return</b> System.Address;
<b>pragma</b> Convention (C, Copy_Arg);
<FONT COLOR=green><EM>-- This is the Copyarg_Function for the internal low-level types</EM></FONT>
<FONT COLOR=green><EM>-- introduced by this binding.</EM></FONT>
<b>procedure</b> Free_Arg (Usr : System.Address);
<b>pragma</b> Convention (C, Free_Arg);
<FONT COLOR=green><EM>-- This is the Freearg_Function for the internal low-level types</EM></FONT>
<FONT COLOR=green><EM>-- introduced by this binding.</EM></FONT>
<b>function</b> Field_Check_Router (<FONT COLOR=red><A NAME="179_33">Fld</A></FONT> : Field;
<A HREF="terminal_interface-curses-forms-field_types__ads.htm#178_13"> </A> Usr : System.Address) <b>return</b> C_Int;
<b>pragma</b> Convention (C, Field_Check_Router);
<FONT COLOR=green><EM>-- This is the Field_Check_Function for the internal low-level types</EM></FONT>
<FONT COLOR=green><EM>-- introduced to wrap the low-level types by a Field_Type derived</EM></FONT>
<FONT COLOR=green><EM>-- type. It routes the call to the corresponding low-level validation</EM></FONT>
<FONT COLOR=green><EM>-- function.</EM></FONT>
<b>function</b> Char_Check_Router (<FONT COLOR=red><A NAME="187_32">Ch</A></FONT> : C_Int;
<A HREF="terminal_interface-curses-forms-field_types__ads.htm#186_13"> </A> Usr : System.Address) <b>return</b> C_Int;
<b>pragma</b> Convention (C, Char_Check_Router);
<FONT COLOR=green><EM>-- This is the Char_Check_Function for the internal low-level types</EM></FONT>
<FONT COLOR=green><EM>-- introduced to wrap the low-level types by a Field_Type derived</EM></FONT>
<FONT COLOR=green><EM>-- type. It routes the call to the corresponding low-level validation</EM></FONT>
<FONT COLOR=green><EM>-- function.</EM></FONT>
<b>function</b> Next_Router (<FONT COLOR=red><A NAME="195_26">Fld</A></FONT> : Field;
<A HREF="terminal_interface-curses-forms-field_types__ads.htm#194_13">Usr</A> : System.Address) <b>return</b> C_Int;
<b>pragma</b> Convention (C, Next_Router);
<FONT COLOR=green><EM>-- This is the Choice_Function for the internal low-level types</EM></FONT>
<FONT COLOR=green><EM>-- introduced to wrap the low-level types by a Field_Type derived</EM></FONT>
<FONT COLOR=green><EM>-- type. It routes the call to the corresponding low-level next_choice</EM></FONT>
<FONT COLOR=green><EM>-- function.</EM></FONT>
<b>function</b> Prev_Router (<FONT COLOR=red><A NAME="203_26">Fld</A></FONT> : Field;
<A HREF="terminal_interface-curses-forms-field_types__ads.htm#202_13">Usr</A> : System.Address) <b>return</b> C_Int;
<b>pragma</b> Convention (C, Prev_Router);
<FONT COLOR=green><EM>-- This is the Choice_Function for the internal low-level types</EM></FONT>
<FONT COLOR=green><EM>-- introduced to wrap the low-level types by a Field_Type derived</EM></FONT>
<FONT COLOR=green><EM>-- type. It routes the call to the corresponding low-level prev_choice</EM></FONT>
<FONT COLOR=green><EM>-- function.</EM></FONT>
<FONT COLOR=green><EM>-- This is the Argument structure maintained by all low-level field types</EM></FONT>
<FONT COLOR=green><EM>-- introduced by this binding.</EM></FONT>
<b>type</b> Argument <b>is</b> <b>record</b>
<FONT COLOR=red><A NAME="214_7">Typ</A></FONT> : Field_Type_Access; <FONT COLOR=green><EM>-- the Field_Type creating this record</EM></FONT>
<FONT COLOR=red><A NAME="215_7">Usr</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">System</A>.Address; <FONT COLOR=green><EM>-- original arg for builtin low-level types</EM></FONT>
Cft : C_Field_Type; <FONT COLOR=green><EM>-- the original low-level type</EM></FONT>
<b>end</b> <b>record</b>;
<b>type</b> Argument_Access <b>is</b> <b>access</b> <b>all</b> Argument;
<FONT COLOR=green><EM>-- +----------------------------------------------------------------------</EM></FONT>
<FONT COLOR=green><EM>-- |</EM></FONT>
<FONT COLOR=green><EM>-- | Some Imports of libform routines to deal with low-level fieldtypes.</EM></FONT>
<FONT COLOR=green><EM>-- |</EM></FONT>
<b>function</b> New_Fieldtype (<FONT COLOR=red><A NAME="224_28">Fcheck</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#109_9">Field_Check_Function</A>;
<A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9"> </A> Ccheck : Char_Check_Function)
<b>return</b> C_Field_Type;
<b>pragma</b> Import (C, New_Fieldtype, "new_fieldtype");
<b>function</b> Set_Fieldtype_Arg (<FONT COLOR=red><A NAME="229_32">Cft</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#93_9">C_Field_Type</A>;
<FONT COLOR=red><A NAME="230_32">Mak</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#97_9">Makearg_Function</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#168_13">Make_Arg</A>'<b>Access</b>;
<FONT COLOR=red><A NAME="231_32">Cop</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#101_9">Copyarg_Function</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#173_14">Copy_Arg</A>'<b>Access</b>;
<A HREF="terminal_interface-curses-forms-field_types__ads.htm#47_12"> </A> Fre : Freearg_Function := Free_Arg'<b>Access</b>)
<b>return</b> C_Int;
<b>pragma</b> Import (C, Set_Fieldtype_Arg, "set_fieldtype_arg");
<b>function</b> Set_Fieldtype_Choice (<FONT COLOR=red><A NAME="236_35">Cft</A></FONT> : <FONT COLOR=red><A NAME="236_41">C_Field_Type</A></FONT>;
<A HREF="terminal_interface-curses-forms-field_types__ads.htm#47_12"> </A> Next, Prev : Choice_Function)
<b>return</b> C_Int;
<b>pragma</b> Import (C, Set_Fieldtype_Choice, "set_fieldtype_choice");
<b>end</b> Terminal_Interface.Curses.Forms.Field_Types;
</PRE></BODY></HTML>
distrib
>
Mandriva
>
9.0
>
x86_64
>
media
>
main
>
by-pkgid
>
6702200c86dc7b0f263b182fea91a3d3
>
files
>
124
