diff options
Diffstat (limited to 'ncurses-5.3/Ada95/src/terminal_interface-curses-menus.adb')
| -rw-r--r-- | ncurses-5.3/Ada95/src/terminal_interface-curses-menus.adb | 1022 |
1 files changed, 1022 insertions, 0 deletions
diff --git a/ncurses-5.3/Ada95/src/terminal_interface-curses-menus.adb b/ncurses-5.3/Ada95/src/terminal_interface-curses-menus.adb new file mode 100644 index 0000000..8d854c1 --- /dev/null +++ b/ncurses-5.3/Ada95/src/terminal_interface-curses-menus.adb @@ -0,0 +1,1022 @@ +------------------------------------------------------------------------------ +-- -- +-- 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, 1996 +-- Contact: http://www.familiepfeifer.de/Contact.aspx?Lang=en +-- Version Control: +-- $Revision$ +-- 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; |