X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=doc%2Fhtml%2Fada%2Fterminal_interface-curses-forms-field_types-user-choice__adb.htm;h=a78ae91dd959008a0c66589ac85f1b512dc7a2f2;hp=e9123b004f83387d7e98d80bfef5edb87c020cf6;hb=c0f109a299a82a33c16bd7af942a12ce9aefaaf0;hpb=a8987e73ec254703634802b4f7ee30d3a485524d;ds=sidebyside diff --git a/doc/html/ada/terminal_interface-curses-forms-field_types-user-choice__adb.htm b/doc/html/ada/terminal_interface-curses-forms-field_types-user-choice__adb.htm index e9123b00..a78ae91d 100644 --- a/doc/html/ada/terminal_interface-curses-forms-field_types-user-choice__adb.htm +++ b/doc/html/ada/terminal_interface-curses-forms-field_types-user-choice__adb.htm @@ -1,115 +1,123 @@ -terminal_interface-curses-forms-field_types-user-choice.adb + + + +terminal_interface-curses-forms-field_types-user-choice.adb + + + -

File : terminal_interface-curses-forms-field_types-user-choice.adb


+

File : terminal_interface-curses-forms-field_types-user-choice.adb


-------------------------------------------------------------------------------
---                                                                          --
---                           GNAT ncurses Binding                           --
---                                                                          --
---          Terminal_Interface.Curses.Forms.Field_Types.User.Choice         --
---                                                                          --
---                                 B O D Y                                  --
---                                                                          --
-------------------------------------------------------------------------------
--- 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
---  Version Control:
---  @Revision: 1.10 @
---  Binding Version 01.00
-------------------------------------------------------------------------------
-with Ada.Unchecked_Conversion;
-with Interfaces.C;
-with Terminal_Interface.Curses.Aux; use Terminal_Interface.Curses.Aux;
+------------------------------------------------------------------------------
+--                                                                          --
+--                           GNAT ncurses Binding                           --
+--                                                                          --
+--          Terminal_Interface.Curses.Forms.Field_Types.User.Choice         --
+--                                                                          --
+--                                 B O D Y                                  --
+--                                                                          --
+------------------------------------------------------------------------------
+-- Copyright 2020 Thomas E. Dickey                                          --
+-- Copyright 1999-2011,2014 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: 1.21 @
+--  @Date: 2020/02/02 23:34:34 @
+--  Binding Version 01.00
+------------------------------------------------------------------------------
+with System.Address_To_Access_Conversions;
+with Terminal_Interface.Curses.Aux; use Terminal_Interface.Curses.Aux;
 
-package body Terminal_Interface.Curses.Forms.Field_Types.User.Choice is
+package body Terminal_Interface.Curses.Forms.Field_Types.User.Choice is
 
-   use type Interfaces.C.int;
+   package Argument_Conversions is
+      new System.Address_To_Access_Conversions (Argument);
 
-   function To_Argument_Access is new Ada.Unchecked_Conversion
-     (System.Address, Argument_Access);
-
-   function Generic_Next (Fld : Field;
-                          Usr : System.Address) return C_Int
+   function Generic_Next (Fld : Field;
+                          Usr : System.Address) return Curses_Bool
    is
-      Result : Boolean;
-      Udf    : User_Defined_Field_Type_With_Choice_Access :=
-        User_Defined_Field_Type_With_Choice_Access
-        (To_Argument_Access (Usr).Typ);
+      Result : Boolean;
+      Udf    : constant User_Defined_Field_Type_With_Choice_Access :=
+        User_Defined_Field_Type_With_Choice_Access
+        (Argument_Access (Argument_Conversions.To_Pointer (Usr)).all.Typ);
    begin
-      Result := Next (Fld, Udf.all);
-      return C_Int (Boolean'Pos (Result));
-   end Generic_Next;
+      Result := Next (Fld, Udf.all);
+      return Curses_Bool (Boolean'Pos (Result));
+   end Generic_Next;
 
-   function Generic_Prev (Fld : Field;
-                          Usr : System.Address) return C_Int
+   function Generic_Prev (Fld : Field;
+                          Usr : System.Address) return Curses_Bool
    is
-      Result : Boolean;
-      Udf    : User_Defined_Field_Type_With_Choice_Access :=
-        User_Defined_Field_Type_With_Choice_Access
-        (To_Argument_Access (Usr).Typ);
+      Result : Boolean;
+      Udf    : constant User_Defined_Field_Type_With_Choice_Access :=
+        User_Defined_Field_Type_With_Choice_Access
+        (Argument_Access (Argument_Conversions.To_Pointer (Usr)).all.Typ);
    begin
-      Result := Previous (Fld, Udf.all);
-      return C_Int (Boolean'Pos (Result));
-   end Generic_Prev;
+      Result := Previous (Fld, Udf.all);
+      return Curses_Bool (Boolean'Pos (Result));
+   end Generic_Prev;
 
-   --  -----------------------------------------------------------------------
-   --
-   function C_Generic_Choice return C_Field_Type
+   --  -----------------------------------------------------------------------
+   --
+   function C_Generic_Choice return C_Field_Type
    is
-      Res : Eti_Error;
-      T   : C_Field_Type;
+      Res : Eti_Error;
+      T   : C_Field_Type;
    begin
-      if M_Generic_Choice = Null_Field_Type then
-         T := New_Fieldtype (Generic_Field_Check'Access,
-                             Generic_Char_Check'Access);
-         if T = Null_Field_Type then
-            raise Form_Exception;
+      if M_Generic_Choice = Null_Field_Type then
+         T := New_Fieldtype (Generic_Field_Check'Access,
+                             Generic_Char_Check'Access);
+         if T = Null_Field_Type then
+            raise Form_Exception;
          else
-            Res := Set_Fieldtype_Arg (T,
-                                      Make_Arg'Access,
-                                      Copy_Arg'Access,
-                                      Free_Arg'Access);
-            if Res /= E_Ok then
-               Eti_Exception (Res);
-            end if;
+            Res := Set_Fieldtype_Arg (T,
+                                      Make_Arg'Access,
+                                      Copy_Arg'Access,
+                                      Free_Arg'Access);
+            Eti_Exception (Res);
 
-            Res := Set_Fieldtype_Choice (T,
-                                         Generic_Next'Access,
-                                         Generic_Prev'Access);
-            if Res /= E_Ok then
-               Eti_Exception (Res);
-            end if;
+            Res := Set_Fieldtype_Choice (T,
+                                         Generic_Next'Access,
+                                         Generic_Prev'Access);
+            Eti_Exception (Res);
          end if;
-         M_Generic_Choice := T;
+         M_Generic_Choice := T;
       end if;
-      pragma Assert (M_Generic_Choice /= Null_Field_Type);
-      return M_Generic_Choice;
-   end C_Generic_Choice;
+      pragma Assert (M_Generic_Choice /= Null_Field_Type);
+      return M_Generic_Choice;
+   end C_Generic_Choice;
 
-end Terminal_Interface.Curses.Forms.Field_Types.User.Choice;
+end Terminal_Interface.Curses.Forms.Field_Types.User.Choice;