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Diffstat (limited to 'ncurses-5.3/Ada95/src/terminal_interface-curses-forms-field_types-user-choice.ads')
| -rw-r--r-- | ncurses-5.3/Ada95/src/terminal_interface-curses-forms-field_types-user-choice.ads | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/ncurses-5.3/Ada95/src/terminal_interface-curses-forms-field_types-user-choice.ads b/ncurses-5.3/Ada95/src/terminal_interface-curses-forms-field_types-user-choice.ads new file mode 100644 index 0000000..4df1954 --- /dev/null +++ b/ncurses-5.3/Ada95/src/terminal_interface-curses-forms-field_types-user-choice.ads @@ -0,0 +1,97 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT ncurses Binding -- +-- -- +-- Terminal_Interface.Curses.Forms.Field_Types.User.Choice -- +-- -- +-- S P E C -- +-- -- +------------------------------------------------------------------------------ +-- Copyright (c) 1998 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 +-- Contact: http://www.familiepfeifer.de/Contact.aspx?Lang=en +-- Version Control: +-- $Revision$ +-- Binding Version 01.00 +------------------------------------------------------------------------------ +with Interfaces.C; + +package Terminal_Interface.Curses.Forms.Field_Types.User.Choice is + pragma Preelaborate + (Terminal_Interface.Curses.Forms.Field_Types.User.Choice); + + use type Interfaces.C.int; + subtype C_Int is Interfaces.C.int; + + type User_Defined_Field_Type_With_Choice is abstract new + User_Defined_Field_Type with null record; + -- This is the root of the mechanism we use to create field types in + -- Ada95 that allow the prev/next mechanism. You should your own type + -- derive from this one and implement the Field_Check, Character_Check + -- Next and Previous functions for your own type. + + type User_Defined_Field_Type_With_Choice_Access is access all + User_Defined_Field_Type_With_Choice'Class; + + function Next + (Fld : Field; + Typ : User_Defined_Field_Type_With_Choice) return Boolean + is abstract; + -- If True is returned, the function successfully generated a next + -- value into the fields buffer. + + function Previous + (Fld : Field; + Typ : User_Defined_Field_Type_With_Choice) return Boolean + is abstract; + -- If True is returned, the function successfully generated a previous + -- value into the fields buffer. + + -- +---------------------------------------------------------------------- + -- | Private Part. + -- | +private + use type Interfaces.C.int; + + function C_Generic_Choice return C_Field_Type; + + function Generic_Next (Fld : Field; + Usr : System.Address) return C_Int; + pragma Convention (C, Generic_Next); + -- This is the generic next Choice_Function for the low-level fieldtype + -- representing all the User_Defined_Field_Type derivates. It routes + -- the call to the Next implementation for the type. + + function Generic_Prev (Fld : Field; + Usr : System.Address) return C_Int; + pragma Convention (C, Generic_Prev); + -- This is the generic prev Choice_Function for the low-level fieldtype + -- representing all the User_Defined_Field_Type derivates. It routes + -- the call to the Previous implementation for the type. + +end Terminal_Interface.Curses.Forms.Field_Types.User.Choice; |