ncurses 5.0

[ncurses.git] / Ada95 / src / terminal_interface-curses-forms-field_types-enumeration.adb

diff --git a/Ada95/src/terminal_interface-curses-forms-field_types-enumeration.adb b/Ada95/src/terminal_interface-curses-forms-field_types-enumeration.adb
new file mode 100644 (file)
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+------------------------------------------------------------------------------
+--                                                                          --
+--                           GNAT ncurses Binding                           --
+--                                                                          --
+--          Terminal_Interface.Curses.Forms.Field_Types.Enumeration         --
+--                                                                          --
+--                                 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 <juergen.pfeifer@gmx.net> 1996
+--  Version Control:
+--  $Revision: 1.5 $
+--  Binding Version 01.00
+------------------------------------------------------------------------------
+with Ada.Unchecked_Deallocation;
+with Interfaces.C; use Interfaces.C;
+with Interfaces.C.Strings; use Interfaces.C.Strings;
+with Terminal_Interface.Curses.Aux; use Terminal_Interface.Curses.Aux;
+
+package body Terminal_Interface.Curses.Forms.Field_Types.Enumeration is
+
+   function Create (Info               : Enumeration_Info;
+                    Auto_Release_Names : Boolean := False)
+                    return Enumeration_Field
+   is
+      procedure Release_String is
+        new Ada.Unchecked_Deallocation (String,
+                                        String_Access);
+      E : Enumeration_Field;
+      L : constant size_t := 1 + size_t (Info.C);
+      S : String_Access;
+   begin
+      E.Case_Sensitive       := Info.Case_Sensitive;
+      E.Match_Must_Be_Unique := Info.Match_Must_Be_Unique;
+      E.Arr := new chars_ptr_array (size_t (1) .. L);
+      for I in 1 .. Positive (L - 1) loop
+         if Info.Names (I) = null then
+            raise Form_Exception;
+         end if;
+         E.Arr (size_t (I)) := New_String (Info.Names (I).all);
+         if Auto_Release_Names then
+            S := Info.Names (I);
+            Release_String (S);
+         end if;
+      end loop;
+      E.Arr (L) := Null_Ptr;
+      return E;
+   end Create;
+
+   procedure Release (Enum : in out Enumeration_Field)
+   is
+      I : size_t := 0;
+      P : chars_ptr;
+   begin
+      loop
+         P := Enum.Arr (I);
+         exit when P = Null_Ptr;
+         Free (P);
+         Enum.Arr (I) := Null_Ptr;
+         I := I + 1;
+      end loop;
+      Enum.Arr := null;
+   end Release;
+
+   procedure Set_Field_Type (Fld : in Field;
+                             Typ : in Enumeration_Field)
+   is
+      C_Enum_Type : C_Field_Type;
+      pragma Import (C, C_Enum_Type, "TYPE_ENUM");
+
+      function Set_Fld_Type (F    : Field := Fld;
+                             Cft  : C_Field_Type := C_Enum_Type;
+                             Arg1 : chars_ptr_array;
+                             Arg2 : C_Int;
+                             Arg3 : C_Int) return C_Int;
+      pragma Import (C, Set_Fld_Type, "set_field_type");
+
+      Res : Eti_Error;
+   begin
+      if Typ.Arr = null then
+         raise Form_Exception;
+      end if;
+      Res := Set_Fld_Type (Arg1 => Typ.Arr.all,
+                           Arg2 => C_Int (Boolean'Pos (Typ.Case_Sensitive)),
+                           Arg3 => C_Int (Boolean'Pos
+                                          (Typ.Match_Must_Be_Unique)));
+      if Res /= E_Ok then
+         Eti_Exception (Res);
+      end if;
+      Wrap_Builtin (Fld, Typ, C_Choice_Router);
+   end Set_Field_Type;
+
+end Terminal_Interface.Curses.Forms.Field_Types.Enumeration;