1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<HTML><HEAD><TITLE>terminal_interface-curses-forms-field_types-user.ads</TITLE></HEAD> 3<BODY> 4<HR><DIV ALIGN="center"><H1> File : terminal_interface-curses-forms-field_types-user.ads </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 --</EM></FONT> 11<FONT COLOR=green><EM>-- --</EM></FONT> 12<FONT COLOR=green><EM>-- S P E C --</EM></FONT> 13<FONT COLOR=green><EM>-- --</EM></FONT> 14<FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT> 15<FONT COLOR=green><EM>-- Copyright (c) 1998,2008 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: 1.12 @</EM></FONT> 44<FONT COLOR=green><EM>-- @Date: 2008/07/26 18:49:38 @</EM></FONT> 45<FONT COLOR=green><EM>-- Binding Version 01.00</EM></FONT> 46<FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT> 47<b>with</b> <A HREF="interfac__ads.htm#ref_38_9">Interfaces</A>.C; 48 49<b>package</b> <A HREF="terminal_interface__ads.htm#ref_42_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_49_35">Forms</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_43_41">Field_Types</A>.<FONT COLOR=red><A NAME="ref_44_53" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_45_58">User</A></FONT> <b>is</b> 50 <b>pragma</b> Preelaborate (<A HREF="terminal_interface__ads.htm#ref_42_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_49_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_44_53">User</A>); 51 <b>subtype</b> <FONT COLOR=red><A NAME="ref_46_12">C_Int</A></FONT> <b>is</b> <A HREF="interfac__ads.htm#ref_38_9">Interfaces</A>.C.int; 52 53 <b>type</b> <FONT COLOR=red><A NAME="ref_48_9">User_Defined_Field_Type</A></FONT> <b>is</b> <b>abstract</b> <b>new</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_52_9">Field_Type</A> <b>with</b> <b>null</b> <b>record</b>; 54 <FONT COLOR=green><EM>-- This is the root of the mechanism we use to create field types in</EM></FONT> 55 <FONT COLOR=green><EM>-- Ada95. You should your own type derive from this one and implement</EM></FONT> 56 <FONT COLOR=green><EM>-- the Field_Check and Character_Check functions for your own type.</EM></FONT> 57 58 <b>type</b> <FONT COLOR=red><A NAME="ref_53_9">User_Defined_Field_Type_Access</A></FONT> <b>is</b> <b>access</b> <b>all</b> 59 <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_48_9">User_Defined_Field_Type</A>'Class; 60 61 <b>function</b> <FONT COLOR=red><A NAME="ref_56_13">Field_Check</A></FONT> 62 (<FONT COLOR=red><A NAME="ref_57_7" HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_56_13">Fld</A></FONT> : <A HREF="terminal_interface-curses-forms__ads.htm#ref_56_9">Field</A>; 63 <FONT COLOR=red><A NAME="ref_58_7" HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_56_13">Typ</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_48_9">User_Defined_Field_Type</A>) <b>return</b> Boolean 64 <b>is</b> <b>abstract</b>; 65 <FONT COLOR=green><EM>-- If True is returned, the field is considered valid, otherwise it is</EM></FONT> 66 <FONT COLOR=green><EM>-- invalid.</EM></FONT> 67 68 <b>function</b> <FONT COLOR=red><A NAME="ref_63_13">Character_Check</A></FONT> 69 (<FONT COLOR=red><A NAME="ref_64_7" HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_63_13">Ch</A></FONT> : Character; 70 <FONT COLOR=red><A NAME="ref_65_7" HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_63_13">Typ</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_48_9">User_Defined_Field_Type</A>) <b>return</b> Boolean 71 <b>is</b> <b>abstract</b>; 72 <FONT COLOR=green><EM>-- If True is returned, the character is considered as valid for the</EM></FONT> 73 <FONT COLOR=green><EM>-- field, otherwise as invalid.</EM></FONT> 74 75 <b>procedure</b> <FONT COLOR=red><A NAME="ref_70_14" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_47_14">Set_Field_Type</A></FONT> (<FONT COLOR=red><A NAME="ref_70_30" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_47_30">Fld</A></FONT> : <b>in</b> <A HREF="terminal_interface-curses-forms__ads.htm#ref_56_9">Field</A>; 76 <FONT COLOR=red><A NAME="ref_71_30" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_48_30">Typ</A></FONT> : <b>in</b> <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_48_9">User_Defined_Field_Type</A>); 77 <FONT COLOR=green><EM>-- This should work for all types derived from User_Defined_Field_Type.</EM></FONT> 78 <FONT COLOR=green><EM>-- No need to reimplement it for your derived type.</EM></FONT> 79 80 <FONT COLOR=green><EM>-- +----------------------------------------------------------------------</EM></FONT> 81 <FONT COLOR=green><EM>-- | Private Part.</EM></FONT> 82 <FONT COLOR=green><EM>-- | Used by the Choice child package.</EM></FONT> 83<b>private</b> 84 <b>function</b> <FONT COLOR=red><A NAME="ref_79_13" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_108_13">C_Generic_Type</A></FONT> <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#ref_132_9">C_Field_Type</A>; 85 86 <b>function</b> <FONT COLOR=red><A NAME="ref_81_13" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_84_13">Generic_Field_Check</A></FONT> (<FONT COLOR=red><A NAME="ref_81_34" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_84_34">Fld</A></FONT> : <A HREF="terminal_interface-curses-forms__ads.htm#ref_56_9">Field</A>; 87 <FONT COLOR=red><A NAME="ref_82_34" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_85_34">Usr</A></FONT> : System.Address) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_46_12">C_Int</A>; 88 <b>pragma</b> Convention (C, <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_81_13">Generic_Field_Check</A>); 89 <FONT COLOR=green><EM>-- This is the generic Field_Check_Function for the low-level fieldtype</EM></FONT> 90 <FONT COLOR=green><EM>-- representing all the User_Defined_Field_Type derivates. It routes</EM></FONT> 91 <FONT COLOR=green><EM>-- the call to the Field_Check implementation for the type.</EM></FONT> 92 93 <b>function</b> <FONT COLOR=red><A NAME="ref_88_13" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_95_13">Generic_Char_Check</A></FONT> (<FONT COLOR=red><A NAME="ref_88_33" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_95_33">Ch</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_46_12">C_Int</A>; 94 <FONT COLOR=red><A NAME="ref_89_33" HREF="terminal_interface-curses-forms-field_types-user__adb.htm#ref_96_33">Usr</A></FONT> : System.Address) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_46_12">C_Int</A>; 95 <b>pragma</b> Convention (C, <A HREF="terminal_interface-curses-forms-field_types-user__ads.htm#ref_88_13">Generic_Char_Check</A>); 96 <FONT COLOR=green><EM>-- This is the generic Char_Check_Function for the low-level fieldtype</EM></FONT> 97 <FONT COLOR=green><EM>-- representing all the User_Defined_Field_Type derivates. It routes</EM></FONT> 98 <FONT COLOR=green><EM>-- the call to the Character_Check implementation for the type.</EM></FONT> 99 100<b>end</b> <A HREF="terminal_interface__ads.htm#ref_42_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_49_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_44_53">User</A>; 101</PRE></BODY></HTML> 102