| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT ncurses Binding -- |
| -- -- |
| -- Terminal_Interface.Curses.Forms.Field_Types.User -- |
| -- -- |
| -- S P E C -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| -- Copyright (c) 1998-2009,2011 Free Software Foundation, Inc. -- |
| -- -- |
| -- Permission is hereby granted, free of charge, to any person obtaining a -- |
| -- copy of this software and associated documentation files (the -- |
| -- "Software"), to deal in the Software without restriction, including -- |
| -- without limitation the rights to use, copy, modify, merge, publish, -- |
| -- distribute, distribute with modifications, sublicense, and/or sell -- |
| -- copies of the Software, and to permit persons to whom the Software is -- |
| -- furnished to do so, subject to the following conditions: -- |
| -- -- |
| -- The above copyright notice and this permission notice shall be included -- |
| -- in all copies or substantial portions of the Software. -- |
| -- -- |
| -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -- |
| -- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -- |
| -- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -- |
| -- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -- |
| -- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -- |
| -- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR -- |
| -- THE USE OR OTHER DEALINGS IN THE SOFTWARE. -- |
| -- -- |
| -- Except as contained in this notice, the name(s) of the above copyright -- |
| -- holders shall not be used in advertising or otherwise to promote the -- |
| -- sale, use or other dealings in this Software without prior written -- |
| -- authorization. -- |
| ------------------------------------------------------------------------------ |
| -- Author: Juergen Pfeifer, 1996 |
| -- Version Control: |
| -- $Revision: 1.15 $ |
| -- $Date: 2011/03/19 12:27:21 $ |
| -- Binding Version 01.00 |
| ------------------------------------------------------------------------------ |
| with Interfaces.C; |
| |
| package Terminal_Interface.Curses.Forms.Field_Types.User is |
| pragma Preelaborate (Terminal_Interface.Curses.Forms.Field_Types.User); |
| subtype C_Int is Interfaces.C.int; |
| |
| type User_Defined_Field_Type is abstract new Field_Type with null record; |
| -- This is the root of the mechanism we use to create field types in |
| -- Ada95. You should your own type derive from this one and implement |
| -- the Field_Check and Character_Check functions for your own type. |
| |
| type User_Defined_Field_Type_Access is access all |
| User_Defined_Field_Type'Class; |
| |
| function Field_Check |
| (Fld : Field; |
| Typ : User_Defined_Field_Type) return Boolean |
| is abstract; |
| -- If True is returned, the field is considered valid, otherwise it is |
| -- invalid. |
| |
| function Character_Check |
| (Ch : Character; |
| Typ : User_Defined_Field_Type) return Boolean |
| is abstract; |
| -- If True is returned, the character is considered as valid for the |
| -- field, otherwise as invalid. |
| |
| procedure Set_Field_Type (Fld : Field; |
| Typ : User_Defined_Field_Type); |
| -- This should work for all types derived from User_Defined_Field_Type. |
| -- No need to reimplement it for your derived type. |
| |
| -- +---------------------------------------------------------------------- |
| -- | Private Part. |
| -- | Used by the Choice child package. |
| private |
| function C_Generic_Type return C_Field_Type; |
| |
| function Generic_Field_Check (Fld : Field; |
| Usr : System.Address) return Curses_Bool; |
| pragma Convention (C, Generic_Field_Check); |
| -- This is the generic Field_Check_Function for the low-level fieldtype |
| -- representing all the User_Defined_Field_Type derivatives. It routes |
| -- the call to the Field_Check implementation for the type. |
| |
| function Generic_Char_Check (Ch : C_Int; |
| Usr : System.Address) return Curses_Bool; |
| pragma Convention (C, Generic_Char_Check); |
| -- This is the generic Char_Check_Function for the low-level fieldtype |
| -- representing all the User_Defined_Field_Type derivatives. It routes |
| -- the call to the Character_Check implementation for the type. |
| |
| end Terminal_Interface.Curses.Forms.Field_Types.User; |
