--- /dev/null
+------------------------------------------------------------------------------
+-- --
+-- GNAT ncurses Binding --
+-- --
+-- Terminal_Interface.Curses.Menus --
+-- --
+-- 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: 1.20 $
+-- Binding Version 01.00
+------------------------------------------------------------------------------
+with Ada.Unchecked_Deallocation;
+with Terminal_Interface.Curses.Aux; use Terminal_Interface.Curses.Aux;
+
+with Interfaces.C; use Interfaces.C;
+with Interfaces.C.Strings; use Interfaces.C.Strings;
+with Interfaces.C.Pointers;
+
+with Ada.Unchecked_Conversion;
+
+package body Terminal_Interface.Curses.Menus is
+
+ type C_Item_Array is array (Natural range <>) of aliased Item;
+ package I_Array is new
+ Interfaces.C.Pointers (Natural, Item, C_Item_Array, Null_Item);
+
+ use type System.Bit_Order;
+ subtype chars_ptr is Interfaces.C.Strings.chars_ptr;
+
+ function MOS_2_CInt is new
+ Ada.Unchecked_Conversion (Menu_Option_Set,
+ C_Int);
+
+ function CInt_2_MOS is new
+ Ada.Unchecked_Conversion (C_Int,
+ Menu_Option_Set);
+
+ function IOS_2_CInt is new
+ Ada.Unchecked_Conversion (Item_Option_Set,
+ C_Int);
+
+ function CInt_2_IOS is new
+ Ada.Unchecked_Conversion (C_Int,
+ Item_Option_Set);
+
+------------------------------------------------------------------------------
+ procedure Request_Name (Key : in Menu_Request_Code;
+ Name : out String)
+ is
+ function Request_Name (Key : C_Int) return chars_ptr;
+ pragma Import (C, Request_Name, "menu_request_name");
+ begin
+ Fill_String (Request_Name (C_Int (Key)), Name);
+ end Request_Name;
+
+ function Request_Name (Key : Menu_Request_Code) return String
+ is
+ function Request_Name (Key : C_Int) return chars_ptr;
+ pragma Import (C, Request_Name, "menu_request_name");
+ begin
+ return Fill_String (Request_Name (C_Int (Key)));
+ end Request_Name;
+
+ function Create (Name : String;
+ Description : String := "") return Item
+ is
+ type Char_Ptr is access all Interfaces.C.char;
+ function Newitem (Name, Desc : Char_Ptr) return Item;
+ pragma Import (C, Newitem, "new_item");
+
+ type Name_String is new char_array (0 .. Name'Length);
+ type Name_String_Ptr is access Name_String;
+ pragma Controlled (Name_String_Ptr);
+
+ type Desc_String is new char_array (0 .. Description'Length);
+ type Desc_String_Ptr is access Desc_String;
+ pragma Controlled (Desc_String_Ptr);
+
+ Name_Str : Name_String_Ptr := new Name_String;
+ Desc_Str : Desc_String_Ptr := new Desc_String;
+ Name_Len, Desc_Len : size_t;
+ Result : Item;
+ begin
+ To_C (Name, Name_Str.all, Name_Len);
+ To_C (Description, Desc_Str.all, Desc_Len);
+ Result := Newitem (Name_Str.all (Name_Str.all'First)'Access,
+ Desc_Str.all (Desc_Str.all'First)'Access);
+ if Result = Null_Item then
+ raise Eti_System_Error;
+ end if;
+ return Result;
+ end Create;
+
+ procedure Delete (Itm : in out Item)
+ is
+ function Descname (Itm : Item) return chars_ptr;
+ pragma Import (C, Descname, "item_description");
+ function Itemname (Itm : Item) return chars_ptr;
+ pragma Import (C, Itemname, "item_name");
+
+ function Freeitem (Itm : Item) return C_Int;
+ pragma Import (C, Freeitem, "free_item");
+
+ Res : Eti_Error;
+ Ptr : chars_ptr;
+ begin
+ Ptr := Descname (Itm);
+ if Ptr /= Null_Ptr then
+ Interfaces.C.Strings.Free (Ptr);
+ end if;
+ Ptr := Itemname (Itm);
+ if Ptr /= Null_Ptr then
+ Interfaces.C.Strings.Free (Ptr);
+ end if;
+ Res := Freeitem (Itm);
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ Itm := Null_Item;
+ end Delete;
+-------------------------------------------------------------------------------
+ procedure Set_Value (Itm : in Item;
+ Value : in Boolean := True)
+ is
+ function Set_Item_Val (Itm : Item;
+ Val : C_Int) return C_Int;
+ pragma Import (C, Set_Item_Val, "set_item_value");
+
+ Res : constant Eti_Error := Set_Item_Val (Itm, Boolean'Pos (Value));
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Value;
+
+ function Value (Itm : Item) return Boolean
+ is
+ function Item_Val (Itm : Item) return C_Int;
+ pragma Import (C, Item_Val, "item_value");
+ begin
+ if Item_Val (Itm) = Curses_False then
+ return False;
+ else
+ return True;
+ end if;
+ end Value;
+
+-------------------------------------------------------------------------------
+ function Visible (Itm : Item) return Boolean
+ is
+ function Item_Vis (Itm : Item) return C_Int;
+ pragma Import (C, Item_Vis, "item_visible");
+ begin
+ if Item_Vis (Itm) = Curses_False then
+ return False;
+ else
+ return True;
+ end if;
+ end Visible;
+-------------------------------------------------------------------------------
+ procedure Set_Options (Itm : in Item;
+ Options : in Item_Option_Set)
+ is
+ function Set_Item_Opts (Itm : Item;
+ Opt : C_Int) return C_Int;
+ pragma Import (C, Set_Item_Opts, "set_item_opts");
+
+ Opt : C_Int := IOS_2_CInt (Options);
+ Res : Eti_Error;
+ begin
+ Res := Set_Item_Opts (Itm, Opt);
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Options;
+
+ procedure Switch_Options (Itm : in Item;
+ Options : in Item_Option_Set;
+ On : Boolean := True)
+ is
+ function Item_Opts_On (Itm : Item;
+ Opt : C_Int) return C_Int;
+ pragma Import (C, Item_Opts_On, "item_opts_on");
+ function Item_Opts_Off (Itm : Item;
+ Opt : C_Int) return C_Int;
+ pragma Import (C, Item_Opts_Off, "item_opts_off");
+
+ Opt : C_Int := IOS_2_CInt (Options);
+ Err : Eti_Error;
+ begin
+ if On then
+ Err := Item_Opts_On (Itm, Opt);
+ else
+ Err := Item_Opts_Off (Itm, Opt);
+ end if;
+ if Err /= E_Ok then
+ Eti_Exception (Err);
+ end if;
+ end Switch_Options;
+
+ procedure Get_Options (Itm : in Item;
+ Options : out Item_Option_Set)
+ is
+ function Item_Opts (Itm : Item) return C_Int;
+ pragma Import (C, Item_Opts, "item_opts");
+
+ Res : C_Int := Item_Opts (Itm);
+ begin
+ Options := CInt_2_IOS (Res);
+ end Get_Options;
+
+ function Get_Options (Itm : Item := Null_Item) return Item_Option_Set
+ is
+ Ios : Item_Option_Set;
+ begin
+ Get_Options (Itm, Ios);
+ return Ios;
+ end Get_Options;
+-------------------------------------------------------------------------------
+ procedure Name (Itm : in Item;
+ Name : out String)
+ is
+ function Itemname (Itm : Item) return chars_ptr;
+ pragma Import (C, Itemname, "item_name");
+ begin
+ Fill_String (Itemname (Itm), Name);
+ end Name;
+
+ function Name (Itm : in Item) return String
+ is
+ function Itemname (Itm : Item) return chars_ptr;
+ pragma Import (C, Itemname, "item_name");
+ begin
+ return Fill_String (Itemname (Itm));
+ end Name;
+
+ procedure Description (Itm : in Item;
+ Description : out String)
+ is
+ function Descname (Itm : Item) return chars_ptr;
+ pragma Import (C, Descname, "item_description");
+ begin
+ Fill_String (Descname (Itm), Description);
+ end Description;
+
+ function Description (Itm : in Item) return String
+ is
+ function Descname (Itm : Item) return chars_ptr;
+ pragma Import (C, Descname, "item_description");
+ begin
+ return Fill_String (Descname (Itm));
+ end Description;
+-------------------------------------------------------------------------------
+ procedure Set_Current (Men : in Menu;
+ Itm : in Item)
+ is
+ function Set_Curr_Item (Men : Menu;
+ Itm : Item) return C_Int;
+ pragma Import (C, Set_Curr_Item, "set_current_item");
+
+ Res : constant Eti_Error := Set_Curr_Item (Men, Itm);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Current;
+
+ function Current (Men : Menu) return Item
+ is
+ function Curr_Item (Men : Menu) return Item;
+ pragma Import (C, Curr_Item, "current_item");
+
+ Res : constant Item := Curr_Item (Men);
+ begin
+ if Res = Null_Item then
+ raise Menu_Exception;
+ end if;
+ return Res;
+ end Current;
+
+ procedure Set_Top_Row (Men : in Menu;
+ Line : in Line_Position)
+ is
+ function Set_Toprow (Men : Menu;
+ Line : C_Int) return C_Int;
+ pragma Import (C, Set_Toprow, "set_top_row");
+
+ Res : constant Eti_Error := Set_Toprow (Men, C_Int (Line));
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Top_Row;
+
+ function Top_Row (Men : Menu) return Line_Position
+ is
+ function Toprow (Men : Menu) return C_Int;
+ pragma Import (C, Toprow, "top_row");
+
+ Res : constant C_Int := Toprow (Men);
+ begin
+ if Res = Curses_Err then
+ raise Menu_Exception;
+ end if;
+ return Line_Position (Res);
+ end Top_Row;
+
+ function Get_Index (Itm : Item) return Positive
+ is
+ function Get_Itemindex (Itm : Item) return C_Int;
+ pragma Import (C, Get_Itemindex, "item_index");
+
+ Res : constant C_Int := Get_Itemindex (Itm);
+ begin
+ if Res = Curses_Err then
+ raise Menu_Exception;
+ end if;
+ return Positive (Natural (Res) + Positive'First);
+ end Get_Index;
+-------------------------------------------------------------------------------
+ procedure Post (Men : in Menu;
+ Post : in Boolean := True)
+ is
+ function M_Post (Men : Menu) return C_Int;
+ pragma Import (C, M_Post, "post_menu");
+ function M_Unpost (Men : Menu) return C_Int;
+ pragma Import (C, M_Unpost, "unpost_menu");
+
+ Res : Eti_Error;
+ begin
+ if Post then
+ Res := M_Post (Men);
+ else
+ Res := M_Unpost (Men);
+ end if;
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Post;
+-------------------------------------------------------------------------------
+ procedure Set_Options (Men : in Menu;
+ Options : in Menu_Option_Set)
+ is
+ function Set_Menu_Opts (Men : Menu;
+ Opt : C_Int) return C_Int;
+ pragma Import (C, Set_Menu_Opts, "set_menu_opts");
+
+ Opt : C_Int := MOS_2_CInt (Options);
+ Res : Eti_Error;
+ begin
+ Res := Set_Menu_Opts (Men, Opt);
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Options;
+
+ procedure Switch_Options (Men : in Menu;
+ Options : in Menu_Option_Set;
+ On : in Boolean := True)
+ is
+ function Menu_Opts_On (Men : Menu;
+ Opt : C_Int) return C_Int;
+ pragma Import (C, Menu_Opts_On, "menu_opts_on");
+ function Menu_Opts_Off (Men : Menu;
+ Opt : C_Int) return C_Int;
+ pragma Import (C, Menu_Opts_Off, "menu_opts_off");
+
+ Opt : C_Int := MOS_2_CInt (Options);
+ Err : Eti_Error;
+ begin
+ if On then
+ Err := Menu_Opts_On (Men, Opt);
+ else
+ Err := Menu_Opts_Off (Men, Opt);
+ end if;
+ if Err /= E_Ok then
+ Eti_Exception (Err);
+ end if;
+ end Switch_Options;
+
+ procedure Get_Options (Men : in Menu;
+ Options : out Menu_Option_Set)
+ is
+ function Menu_Opts (Men : Menu) return C_Int;
+ pragma Import (C, Menu_Opts, "menu_opts");
+
+ Res : C_Int := Menu_Opts (Men);
+ begin
+ Options := CInt_2_MOS (Res);
+ end Get_Options;
+
+ function Get_Options (Men : Menu := Null_Menu) return Menu_Option_Set
+ is
+ Mos : Menu_Option_Set;
+ begin
+ Get_Options (Men, Mos);
+ return Mos;
+ end Get_Options;
+-------------------------------------------------------------------------------
+ procedure Set_Window (Men : in Menu;
+ Win : in Window)
+ is
+ function Set_Menu_Win (Men : Menu;
+ Win : Window) return C_Int;
+ pragma Import (C, Set_Menu_Win, "set_menu_win");
+
+ Res : constant Eti_Error := Set_Menu_Win (Men, Win);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Window;
+
+ function Get_Window (Men : Menu) return Window
+ is
+ function Menu_Win (Men : Menu) return Window;
+ pragma Import (C, Menu_Win, "menu_win");
+
+ W : constant Window := Menu_Win (Men);
+ begin
+ return W;
+ end Get_Window;
+
+ procedure Set_Sub_Window (Men : in Menu;
+ Win : in Window)
+ is
+ function Set_Menu_Sub (Men : Menu;
+ Win : Window) return C_Int;
+ pragma Import (C, Set_Menu_Sub, "set_menu_sub");
+
+ Res : constant Eti_Error := Set_Menu_Sub (Men, Win);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Sub_Window;
+
+ function Get_Sub_Window (Men : Menu) return Window
+ is
+ function Menu_Sub (Men : Menu) return Window;
+ pragma Import (C, Menu_Sub, "menu_sub");
+
+ W : constant Window := Menu_Sub (Men);
+ begin
+ return W;
+ end Get_Sub_Window;
+
+ procedure Scale (Men : in Menu;
+ Lines : out Line_Count;
+ Columns : out Column_Count)
+ is
+ type C_Int_Access is access all C_Int;
+ function M_Scale (Men : Menu;
+ Yp, Xp : C_Int_Access) return C_Int;
+ pragma Import (C, M_Scale, "scale_menu");
+
+ X, Y : aliased C_Int;
+ Res : constant Eti_Error := M_Scale (Men, Y'Access, X'Access);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ Lines := Line_Count (Y);
+ Columns := Column_Count (X);
+ end Scale;
+-------------------------------------------------------------------------------
+ procedure Position_Cursor (Men : Menu)
+ is
+ function Pos_Menu_Cursor (Men : Menu) return C_Int;
+ pragma Import (C, Pos_Menu_Cursor, "pos_menu_cursor");
+
+ Res : constant Eti_Error := Pos_Menu_Cursor (Men);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Position_Cursor;
+
+-------------------------------------------------------------------------------
+ procedure Set_Mark (Men : in Menu;
+ Mark : in String)
+ is
+ type Char_Ptr is access all Interfaces.C.char;
+ function Set_Mark (Men : Menu;
+ Mark : Char_Ptr) return C_Int;
+ pragma Import (C, Set_Mark, "set_menu_mark");
+
+ Txt : char_array (0 .. Mark'Length);
+ Len : size_t;
+ Res : Eti_Error;
+ begin
+ To_C (Mark, Txt, Len);
+ Res := Set_Mark (Men, Txt (Txt'First)'Access);
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Mark;
+
+ procedure Mark (Men : in Menu;
+ Mark : out String)
+ is
+ function Get_Menu_Mark (Men : Menu) return chars_ptr;
+ pragma Import (C, Get_Menu_Mark, "menu_mark");
+ begin
+ Fill_String (Get_Menu_Mark (Men), Mark);
+ end Mark;
+
+ function Mark (Men : Menu) return String
+ is
+ function Get_Menu_Mark (Men : Menu) return chars_ptr;
+ pragma Import (C, Get_Menu_Mark, "menu_mark");
+ begin
+ return Fill_String (Get_Menu_Mark (Men));
+ end Mark;
+
+-------------------------------------------------------------------------------
+ procedure Set_Foreground
+ (Men : in Menu;
+ Fore : in Character_Attribute_Set := Normal_Video;
+ Color : in Color_Pair := Color_Pair'First)
+ is
+ function Set_Menu_Fore (Men : Menu;
+ Attr : C_Chtype) return C_Int;
+ pragma Import (C, Set_Menu_Fore, "set_menu_fore");
+
+ Ch : constant Attributed_Character := (Ch => Character'First,
+ Color => Color,
+ Attr => Fore);
+ Res : constant Eti_Error := Set_Menu_Fore (Men, AttrChar_To_Chtype (Ch));
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Foreground;
+
+ procedure Foreground (Men : in Menu;
+ Fore : out Character_Attribute_Set)
+ is
+ function Menu_Fore (Men : Menu) return C_Chtype;
+ pragma Import (C, Menu_Fore, "menu_fore");
+ begin
+ Fore := Chtype_To_AttrChar (Menu_Fore (Men)).Attr;
+ end Foreground;
+
+ procedure Foreground (Men : in Menu;
+ Fore : out Character_Attribute_Set;
+ Color : out Color_Pair)
+ is
+ function Menu_Fore (Men : Menu) return C_Chtype;
+ pragma Import (C, Menu_Fore, "menu_fore");
+ begin
+ Fore := Chtype_To_AttrChar (Menu_Fore (Men)).Attr;
+ Color := Chtype_To_AttrChar (Menu_Fore (Men)).Color;
+ end Foreground;
+
+ procedure Set_Background
+ (Men : in Menu;
+ Back : in Character_Attribute_Set := Normal_Video;
+ Color : in Color_Pair := Color_Pair'First)
+ is
+ function Set_Menu_Back (Men : Menu;
+ Attr : C_Chtype) return C_Int;
+ pragma Import (C, Set_Menu_Back, "set_menu_back");
+
+ Ch : constant Attributed_Character := (Ch => Character'First,
+ Color => Color,
+ Attr => Back);
+ Res : constant Eti_Error := Set_Menu_Back (Men, AttrChar_To_Chtype (Ch));
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Background;
+
+ procedure Background (Men : in Menu;
+ Back : out Character_Attribute_Set)
+ is
+ function Menu_Back (Men : Menu) return C_Chtype;
+ pragma Import (C, Menu_Back, "menu_back");
+ begin
+ Back := Chtype_To_AttrChar (Menu_Back (Men)).Attr;
+ end Background;
+
+ procedure Background (Men : in Menu;
+ Back : out Character_Attribute_Set;
+ Color : out Color_Pair)
+ is
+ function Menu_Back (Men : Menu) return C_Chtype;
+ pragma Import (C, Menu_Back, "menu_back");
+ begin
+ Back := Chtype_To_AttrChar (Menu_Back (Men)).Attr;
+ Color := Chtype_To_AttrChar (Menu_Back (Men)).Color;
+ end Background;
+
+ procedure Set_Grey (Men : in Menu;
+ Grey : in Character_Attribute_Set := Normal_Video;
+ Color : in Color_Pair := Color_Pair'First)
+ is
+ function Set_Menu_Grey (Men : Menu;
+ Attr : C_Chtype) return C_Int;
+ pragma Import (C, Set_Menu_Grey, "set_menu_grey");
+
+ Ch : constant Attributed_Character := (Ch => Character'First,
+ Color => Color,
+ Attr => Grey);
+
+ Res : constant Eti_Error := Set_Menu_Grey (Men, AttrChar_To_Chtype (Ch));
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Grey;
+
+ procedure Grey (Men : in Menu;
+ Grey : out Character_Attribute_Set)
+ is
+ function Menu_Grey (Men : Menu) return C_Chtype;
+ pragma Import (C, Menu_Grey, "menu_grey");
+ begin
+ Grey := Chtype_To_AttrChar (Menu_Grey (Men)).Attr;
+ end Grey;
+
+ procedure Grey (Men : in Menu;
+ Grey : out Character_Attribute_Set;
+ Color : out Color_Pair)
+ is
+ function Menu_Grey (Men : Menu) return C_Chtype;
+ pragma Import (C, Menu_Grey, "menu_grey");
+ begin
+ Grey := Chtype_To_AttrChar (Menu_Grey (Men)).Attr;
+ Color := Chtype_To_AttrChar (Menu_Grey (Men)).Color;
+ end Grey;
+
+ procedure Set_Pad_Character (Men : in Menu;
+ Pad : in Character := Space)
+ is
+ function Set_Menu_Pad (Men : Menu;
+ Ch : C_Int) return C_Int;
+ pragma Import (C, Set_Menu_Pad, "set_menu_pad");
+
+ Res : constant Eti_Error := Set_Menu_Pad (Men,
+ C_Int (Character'Pos (Pad)));
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Pad_Character;
+
+ procedure Pad_Character (Men : in Menu;
+ Pad : out Character)
+ is
+ function Menu_Pad (Men : Menu) return C_Int;
+ pragma Import (C, Menu_Pad, "menu_pad");
+ begin
+ Pad := Character'Val (Menu_Pad (Men));
+ end Pad_Character;
+-------------------------------------------------------------------------------
+ procedure Set_Spacing (Men : in Menu;
+ Descr : in Column_Position := 0;
+ Row : in Line_Position := 0;
+ Col : in Column_Position := 0)
+ is
+ function Set_Spacing (Men : Menu;
+ D, R, C : C_Int) return C_Int;
+ pragma Import (C, Set_Spacing, "set_menu_spacing");
+
+ Res : constant Eti_Error := Set_Spacing (Men,
+ C_Int (Descr),
+ C_Int (Row),
+ C_Int (Col));
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Spacing;
+
+ procedure Spacing (Men : in Menu;
+ Descr : out Column_Position;
+ Row : out Line_Position;
+ Col : out Column_Position)
+ is
+ type C_Int_Access is access all C_Int;
+ function Get_Spacing (Men : Menu;
+ D, R, C : C_Int_Access) return C_Int;
+ pragma Import (C, Get_Spacing, "menu_spacing");
+
+ D, R, C : aliased C_Int;
+ Res : constant Eti_Error := Get_Spacing (Men,
+ D'Access,
+ R'Access,
+ C'Access);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ else
+ Descr := Column_Position (D);
+ Row := Line_Position (R);
+ Col := Column_Position (C);
+ end if;
+ end Spacing;
+-------------------------------------------------------------------------------
+ function Set_Pattern (Men : Menu;
+ Text : String) return Boolean
+ is
+ type Char_Ptr is access all Interfaces.C.char;
+ function Set_Pattern (Men : Menu;
+ Pattern : Char_Ptr) return C_Int;
+ pragma Import (C, Set_Pattern, "set_menu_pattern");
+
+ S : char_array (0 .. Text'Length);
+ L : size_t;
+ Res : Eti_Error;
+ begin
+ To_C (Text, S, L);
+ Res := Set_Pattern (Men, S (S'First)'Access);
+ case Res is
+ when E_No_Match => return False;
+ when E_Ok => return True;
+ when others =>
+ Eti_Exception (Res);
+ return False;
+ end case;
+ end Set_Pattern;
+
+ procedure Pattern (Men : in Menu;
+ Text : out String)
+ is
+ function Get_Pattern (Men : Menu) return chars_ptr;
+ pragma Import (C, Get_Pattern, "menu_pattern");
+ begin
+ Fill_String (Get_Pattern (Men), Text);
+ end Pattern;
+-------------------------------------------------------------------------------
+ procedure Set_Format (Men : in Menu;
+ Lines : in Line_Count;
+ Columns : in Column_Count)
+ is
+ function Set_Menu_Fmt (Men : Menu;
+ Lin : C_Int;
+ Col : C_Int) return C_Int;
+ pragma Import (C, Set_Menu_Fmt, "set_menu_format");
+
+ Res : constant Eti_Error := Set_Menu_Fmt (Men,
+ C_Int (Lines),
+ C_Int (Columns));
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Format;
+
+ procedure Format (Men : in Menu;
+ Lines : out Line_Count;
+ Columns : out Column_Count)
+ is
+ type C_Int_Access is access all C_Int;
+ function Menu_Fmt (Men : Menu;
+ Y, X : C_Int_Access) return C_Int;
+ pragma Import (C, Menu_Fmt, "menu_format");
+
+ L, C : aliased C_Int;
+ Res : constant Eti_Error := Menu_Fmt (Men, L'Access, C'Access);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ else
+ Lines := Line_Count (L);
+ Columns := Column_Count (C);
+ end if;
+ end Format;
+-------------------------------------------------------------------------------
+ procedure Set_Item_Init_Hook (Men : in Menu;
+ Proc : in Menu_Hook_Function)
+ is
+ function Set_Item_Init (Men : Menu;
+ Proc : Menu_Hook_Function) return C_Int;
+ pragma Import (C, Set_Item_Init, "set_item_init");
+
+ Res : constant Eti_Error := Set_Item_Init (Men, Proc);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Item_Init_Hook;
+
+ procedure Set_Item_Term_Hook (Men : in Menu;
+ Proc : in Menu_Hook_Function)
+ is
+ function Set_Item_Term (Men : Menu;
+ Proc : Menu_Hook_Function) return C_Int;
+ pragma Import (C, Set_Item_Term, "set_item_term");
+
+ Res : constant Eti_Error := Set_Item_Term (Men, Proc);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Item_Term_Hook;
+
+ procedure Set_Menu_Init_Hook (Men : in Menu;
+ Proc : in Menu_Hook_Function)
+ is
+ function Set_Menu_Init (Men : Menu;
+ Proc : Menu_Hook_Function) return C_Int;
+ pragma Import (C, Set_Menu_Init, "set_menu_init");
+
+ Res : constant Eti_Error := Set_Menu_Init (Men, Proc);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Menu_Init_Hook;
+
+ procedure Set_Menu_Term_Hook (Men : in Menu;
+ Proc : in Menu_Hook_Function)
+ is
+ function Set_Menu_Term (Men : Menu;
+ Proc : Menu_Hook_Function) return C_Int;
+ pragma Import (C, Set_Menu_Term, "set_menu_term");
+
+ Res : constant Eti_Error := Set_Menu_Term (Men, Proc);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end Set_Menu_Term_Hook;
+
+ function Get_Item_Init_Hook (Men : Menu) return Menu_Hook_Function
+ is
+ function Item_Init (Men : Menu) return Menu_Hook_Function;
+ pragma Import (C, Item_Init, "item_init");
+ begin
+ return Item_Init (Men);
+ end Get_Item_Init_Hook;
+
+ function Get_Item_Term_Hook (Men : Menu) return Menu_Hook_Function
+ is
+ function Item_Term (Men : Menu) return Menu_Hook_Function;
+ pragma Import (C, Item_Term, "item_term");
+ begin
+ return Item_Term (Men);
+ end Get_Item_Term_Hook;
+
+ function Get_Menu_Init_Hook (Men : Menu) return Menu_Hook_Function
+ is
+ function Menu_Init (Men : Menu) return Menu_Hook_Function;
+ pragma Import (C, Menu_Init, "menu_init");
+ begin
+ return Menu_Init (Men);
+ end Get_Menu_Init_Hook;
+
+ function Get_Menu_Term_Hook (Men : Menu) return Menu_Hook_Function
+ is
+ function Menu_Term (Men : Menu) return Menu_Hook_Function;
+ pragma Import (C, Menu_Term, "menu_term");
+ begin
+ return Menu_Term (Men);
+ end Get_Menu_Term_Hook;
+-------------------------------------------------------------------------------
+ procedure Redefine (Men : in Menu;
+ Items : in Item_Array_Access)
+ is
+ function Set_Items (Men : Menu;
+ Items : System.Address) return C_Int;
+ pragma Import (C, Set_Items, "set_menu_items");
+
+ Res : Eti_Error;
+ begin
+ pragma Assert (Items (Items'Last) = Null_Item);
+ if Items (Items'Last) /= Null_Item then
+ raise Menu_Exception;
+ else
+ Res := Set_Items (Men, Items.all'Address);
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ end if;
+ end Redefine;
+
+ function Item_Count (Men : Menu) return Natural
+ is
+ function Count (Men : Menu) return C_Int;
+ pragma Import (C, Count, "item_count");
+ begin
+ return Natural (Count (Men));
+ end Item_Count;
+
+ function Items (Men : Menu;
+ Index : Positive) return Item
+ is
+ use I_Array;
+
+ function C_Mitems (Men : Menu) return Pointer;
+ pragma Import (C, C_Mitems, "menu_items");
+
+ P : Pointer := C_Mitems (Men);
+ begin
+ if P = null or else Index not in 1 .. Item_Count (Men) then
+ raise Menu_Exception;
+ else
+ P := P + ptrdiff_t (C_Int (Index) - 1);
+ return P.all;
+ end if;
+ end Items;
+
+-------------------------------------------------------------------------------
+ function Create (Items : Item_Array_Access) return Menu
+ is
+ function Newmenu (Items : System.Address) return Menu;
+ pragma Import (C, Newmenu, "new_menu");
+
+ M : Menu;
+ begin
+ pragma Assert (Items (Items'Last) = Null_Item);
+ if Items (Items'Last) /= Null_Item then
+ raise Menu_Exception;
+ else
+ M := Newmenu (Items.all'Address);
+ if M = Null_Menu then
+ raise Menu_Exception;
+ end if;
+ return M;
+ end if;
+ end Create;
+
+ procedure Delete (Men : in out Menu)
+ is
+ function Free (Men : Menu) return C_Int;
+ pragma Import (C, Free, "free_menu");
+
+ Res : constant Eti_Error := Free (Men);
+ begin
+ if Res /= E_Ok then
+ Eti_Exception (Res);
+ end if;
+ Men := Null_Menu;
+ end Delete;
+
+------------------------------------------------------------------------------
+ function Driver (Men : Menu;
+ Key : Key_Code) return Driver_Result
+ is
+ function Driver (Men : Menu;
+ Key : C_Int) return C_Int;
+ pragma Import (C, Driver, "menu_driver");
+
+ R : Eti_Error := Driver (Men, C_Int (Key));
+ begin
+ if R /= E_Ok then
+ case R is
+ when E_Unknown_Command => return Unknown_Request;
+ when E_No_Match => return No_Match;
+ when E_Request_Denied |
+ E_Not_Selectable => return Request_Denied;
+ when others =>
+ Eti_Exception (R);
+ end case;
+ end if;
+ return Menu_Ok;
+ end Driver;
+
+ procedure Free (IA : in out Item_Array_Access;
+ Free_Items : in Boolean := False)
+ is
+ procedure Release is new Ada.Unchecked_Deallocation
+ (Item_Array, Item_Array_Access);
+ begin
+ if IA /= null and then Free_Items then
+ for I in IA'First .. (IA'Last - 1) loop
+ if (IA (I) /= Null_Item) then
+ Delete (IA (I));
+ end if;
+ end loop;
+ end if;
+ Release (IA);
+ end Free;
+
+-------------------------------------------------------------------------------
+ function Default_Menu_Options return Menu_Option_Set
+ is
+ begin
+ return Get_Options (Null_Menu);
+ end Default_Menu_Options;
+
+ function Default_Item_Options return Item_Option_Set
+ is
+ begin
+ return Get_Options (Null_Item);
+ end Default_Item_Options;
+-------------------------------------------------------------------------------
+
+end Terminal_Interface.Curses.Menus;
projects / ncurses.git / blobdiff