X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=doc%2Fhtml%2Fada%2Fterminal_interface-curses-forms-field_types__adb.htm;h=21606641c4be75f5d97e204ed14b38260b86cc1d;hp=4af3ca4400a6c54b5671e43c3fbc8327c3660174;hb=9776951416d7fb862b9dca1f4c9f8031a5c9059b;hpb=f6718d80c998008de6cfe8e6296bee3958ff86d7 diff --git a/doc/html/ada/terminal_interface-curses-forms-field_types__adb.htm b/doc/html/ada/terminal_interface-curses-forms-field_types__adb.htm index 4af3ca44..21606641 100644 --- a/doc/html/ada/terminal_interface-curses-forms-field_types__adb.htm +++ b/doc/html/ada/terminal_interface-curses-forms-field_types__adb.htm @@ -12,7 +12,7 @@ -- B O D Y -- -- -- ------------------------------------------------------------------------------ --- Copyright (c) 1998-2006,2008 Free Software Foundation, Inc. -- +-- 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 -- @@ -40,8 +40,8 @@ ------------------------------------------------------------------------------ -- Author: Juergen Pfeifer, 1996 -- Version Control: --- @Revision: 1.20 @ --- @Date: 2008/07/26 18:50:33 @ +-- @Revision: 1.22 @ +-- @Date: 2011/03/08 01:16:49 @ -- Binding Version 01.00 ------------------------------------------------------------------------------ with Terminal_Interface.Curses.Aux; use Terminal_Interface.Curses.Aux; @@ -73,7 +73,7 @@ -- | -- | -- | - function Get_Type (Fld : in Field) return Field_Type_Access + function Get_Type (Fld : Field) return Field_Type_Access is Low_Level : constant C_Field_Type := Get_Fieldtype (Fld); Arg : Argument_Access; @@ -87,151 +87,133 @@ Low_Level = M_Generic_Choice then Arg := To_Argument_Access (Get_Arg (Fld)); if Arg = null then - raise Form_Exception; + raise Form_Exception; else return Arg.Typ; end if; else - raise Form_Exception; + raise Form_Exception; end if; end if; end Get_Type; - function Make_Arg (Args : System.Address) return System.Address - is - -- Actually args is a double indirected pointer to the arguments - -- of a C variable argument list. In theory it is now quite - -- complicated to write portable routine that reads the arguments, - -- because one has to know the growth direction of the stack and - -- the sizes of the individual arguments. - -- Fortunately we are only interested in the first argument (#0), - -- we know its size and for the first arg we don't care about - -- into which stack direction we have to proceed. We simply - -- resolve the double indirection and thats it. - type V is access all System.Address; - function To_Access is new Ada.Unchecked_Conversion (System.Address, - V); - begin - return To_Access (To_Access (Args).all).all; - end Make_Arg; - - function Copy_Arg (Usr : System.Address) return System.Address + function Copy_Arg (Usr : System.Address) return System.Address is begin return Usr; end Copy_Arg; - procedure Free_Arg (Usr : in System.Address) + procedure Free_Arg (Usr : System.Address) is procedure Free_Type is new Ada.Unchecked_Deallocation (Field_Type'Class, Field_Type_Access); procedure Freeargs is new Ada.Unchecked_Deallocation (Argument, Argument_Access); - To_Be_Free : Argument_Access := To_Argument_Access (Usr); - Low_Level : C_Field_Type; + To_Be_Free : Argument_Access := To_Argument_Access (Usr); + Low_Level : C_Field_Type; begin - if To_Be_Free /= null then - if To_Be_Free.Usr /= System.Null_Address then - Low_Level := To_Be_Free.Cft; - if Low_Level.Freearg /= null then - Low_Level.Freearg (To_Be_Free.Usr); + if To_Be_Free /= null then + if To_Be_Free.Usr /= System.Null_Address then + Low_Level := To_Be_Free.Cft; + if Low_Level.Freearg /= null then + Low_Level.Freearg (To_Be_Free.Usr); end if; end if; - if To_Be_Free.Typ /= null then - Free_Type (To_Be_Free.Typ); + if To_Be_Free.Typ /= null then + Free_Type (To_Be_Free.Typ); end if; - Freeargs (To_Be_Free); + Freeargs (To_Be_Free); end if; end Free_Arg; - procedure Wrap_Builtin (Fld : Field; - Typ : Field_Type'Class; - Cft : C_Field_Type := C_Builtin_Router) + procedure Wrap_Builtin (Fld : Field; + Typ : Field_Type'Class; + Cft : C_Field_Type := C_Builtin_Router) is - Usr_Arg : constant System.Address := Get_Arg (Fld); - Low_Level : constant C_Field_Type := Get_Fieldtype (Fld); - Arg : Argument_Access; - Res : Eti_Error; - function Set_Fld_Type (F : Field := Fld; - Cf : C_Field_Type := Cft; - Arg1 : Argument_Access) return C_Int; - pragma Import (C, Set_Fld_Type, "set_field_type"); + Usr_Arg : constant System.Address := Get_Arg (Fld); + Low_Level : constant C_Field_Type := Get_Fieldtype (Fld); + Arg : Argument_Access; + Res : Eti_Error; + function Set_Fld_Type (F : Field := Fld; + Cf : C_Field_Type := Cft; + Arg1 : Argument_Access) return C_Int; + pragma Import (C, Set_Fld_Type, "set_field_type_user"); begin - pragma Assert (Low_Level /= Null_Field_Type); + pragma Assert (Low_Level /= Null_Field_Type); if Cft /= C_Builtin_Router and then Cft /= C_Choice_Router then - raise Form_Exception; + raise Form_Exception; else - Arg := new Argument'(Usr => System.Null_Address, + Arg := new Argument'(Usr => System.Null_Address, Typ => new Field_Type'Class'(Typ), Cft => Get_Fieldtype (Fld)); - if Usr_Arg /= System.Null_Address then - if Low_Level.Copyarg /= null then - Arg.Usr := Low_Level.Copyarg (Usr_Arg); + if Usr_Arg /= System.Null_Address then + if Low_Level.Copyarg /= null then + Arg.Usr := Low_Level.Copyarg (Usr_Arg); else - Arg.Usr := Usr_Arg; + Arg.Usr := Usr_Arg; end if; end if; - Res := Set_Fld_Type (Arg1 => Arg); - if Res /= E_Ok then - Eti_Exception (Res); + Res := Set_Fld_Type (Arg1 => Arg); + if Res /= E_Ok then + Eti_Exception (Res); end if; end if; end Wrap_Builtin; - function Field_Check_Router (Fld : Field; - Usr : System.Address) return C_Int + function Field_Check_Router (Fld : Field; + Usr : System.Address) return Curses_Bool is - Arg : constant Argument_Access := To_Argument_Access (Usr); + Arg : constant Argument_Access := To_Argument_Access (Usr); begin - pragma Assert (Arg /= null and then Arg.Cft /= Null_Field_Type - and then Arg.Typ /= null); - if Arg.Cft.Fcheck /= null then - return Arg.Cft.Fcheck (Fld, Arg.Usr); + pragma Assert (Arg /= null and then Arg.Cft /= Null_Field_Type + and then Arg.Typ /= null); + if Arg.Cft.Fcheck /= null then + return Arg.Cft.Fcheck (Fld, Arg.Usr); else return 1; end if; end Field_Check_Router; - function Char_Check_Router (Ch : C_Int; - Usr : System.Address) return C_Int + function Char_Check_Router (Ch : C_Int; + Usr : System.Address) return Curses_Bool is - Arg : constant Argument_Access := To_Argument_Access (Usr); + Arg : constant Argument_Access := To_Argument_Access (Usr); begin - pragma Assert (Arg /= null and then Arg.Cft /= Null_Field_Type - and then Arg.Typ /= null); - if Arg.Cft.Ccheck /= null then - return Arg.Cft.Ccheck (Ch, Arg.Usr); + pragma Assert (Arg /= null and then Arg.Cft /= Null_Field_Type + and then Arg.Typ /= null); + if Arg.Cft.Ccheck /= null then + return Arg.Cft.Ccheck (Ch, Arg.Usr); else return 1; end if; end Char_Check_Router; - function Next_Router (Fld : Field; - Usr : System.Address) return C_Int + function Next_Router (Fld : Field; + Usr : System.Address) return Curses_Bool is - Arg : constant Argument_Access := To_Argument_Access (Usr); + Arg : constant Argument_Access := To_Argument_Access (Usr); begin - pragma Assert (Arg /= null and then Arg.Cft /= Null_Field_Type - and then Arg.Typ /= null); - if Arg.Cft.Next /= null then - return Arg.Cft.Next (Fld, Arg.Usr); + pragma Assert (Arg /= null and then Arg.Cft /= Null_Field_Type + and then Arg.Typ /= null); + if Arg.Cft.Next /= null then + return Arg.Cft.Next (Fld, Arg.Usr); else return 1; end if; end Next_Router; - function Prev_Router (Fld : Field; - Usr : System.Address) return C_Int + function Prev_Router (Fld : Field; + Usr : System.Address) return Curses_Bool is - Arg : constant Argument_Access := To_Argument_Access (Usr); + Arg : constant Argument_Access := To_Argument_Access (Usr); begin - pragma Assert (Arg /= null and then Arg.Cft /= Null_Field_Type - and then Arg.Typ /= null); - if Arg.Cft.Prev /= null then - return Arg.Cft.Prev (Fld, Arg.Usr); + pragma Assert (Arg /= null and then Arg.Cft /= Null_Field_Type + and then Arg.Typ /= null); + if Arg.Cft.Prev /= null then + return Arg.Cft.Prev (Fld, Arg.Usr); else return 1; end if; @@ -239,26 +221,26 @@ -- ----------------------------------------------------------------------- -- - function C_Builtin_Router return C_Field_Type + function C_Builtin_Router return C_Field_Type is - Res : Eti_Error; - T : C_Field_Type; + Res : Eti_Error; + T : C_Field_Type; begin if M_Builtin_Router = Null_Field_Type then - T := New_Fieldtype (Field_Check_Router'Access, + T := New_Fieldtype (Field_Check_Router'Access, Char_Check_Router'Access); - if T = Null_Field_Type then - raise Form_Exception; + if T = Null_Field_Type then + raise Form_Exception; else - Res := Set_Fieldtype_Arg (T, + Res := Set_Fieldtype_Arg (T, Make_Arg'Access, Copy_Arg'Access, Free_Arg'Access); - if Res /= E_Ok then - Eti_Exception (Res); + if Res /= E_Ok then + Eti_Exception (Res); end if; end if; - M_Builtin_Router := T; + M_Builtin_Router := T; end if; pragma Assert (M_Builtin_Router /= Null_Field_Type); return M_Builtin_Router; @@ -266,33 +248,33 @@ -- ----------------------------------------------------------------------- -- - function C_Choice_Router return C_Field_Type + function C_Choice_Router return C_Field_Type is - Res : Eti_Error; - T : C_Field_Type; + Res : Eti_Error; + T : C_Field_Type; begin if M_Choice_Router = Null_Field_Type then - T := New_Fieldtype (Field_Check_Router'Access, + T := New_Fieldtype (Field_Check_Router'Access, Char_Check_Router'Access); - if T = Null_Field_Type then - raise Form_Exception; + if T = Null_Field_Type then + raise Form_Exception; else - Res := Set_Fieldtype_Arg (T, + Res := Set_Fieldtype_Arg (T, Make_Arg'Access, Copy_Arg'Access, Free_Arg'Access); - if Res /= E_Ok then - Eti_Exception (Res); + if Res /= E_Ok then + Eti_Exception (Res); end if; - Res := Set_Fieldtype_Choice (T, + Res := Set_Fieldtype_Choice (T, Next_Router'Access, Prev_Router'Access); - if Res /= E_Ok then - Eti_Exception (Res); + if Res /= E_Ok then + Eti_Exception (Res); end if; end if; - M_Choice_Router := T; + M_Choice_Router := T; end if; pragma Assert (M_Choice_Router /= Null_Field_Type); return M_Choice_Router;