sample-menu_demo.adb [plain text]
with Terminal_Interface.Curses; use Terminal_Interface.Curses;
with Terminal_Interface.Curses.Panels; use Terminal_Interface.Curses.Panels;
with Terminal_Interface.Curses.Menus; use Terminal_Interface.Curses.Menus;
with Terminal_Interface.Curses.Menus.Menu_User_Data;
with Terminal_Interface.Curses.Menus.Item_User_Data;
with Sample.Manifest; use Sample.Manifest;
with Sample.Function_Key_Setting; use Sample.Function_Key_Setting;
with Sample.Menu_Demo.Handler;
with Sample.Helpers; use Sample.Helpers;
with Sample.Explanation; use Sample.Explanation;
package body Sample.Menu_Demo is
package Spacing_Demo is
procedure Spacing_Test;
end Spacing_Demo;
package body Spacing_Demo is
procedure Spacing_Test
is
function My_Driver (M : Menu;
K : Key_Code;
P : Panel) return Boolean;
procedure Set_Option_Key;
procedure Set_Select_Key;
procedure Set_Description_Key;
procedure Set_Hide_Key;
package Mh is new Sample.Menu_Demo.Handler (My_Driver);
I : Item_Array_Access := new Item_Array'
(New_Item ("January", "31 Days"),
New_Item ("February", "28/29 Days"),
New_Item ("March", "31 Days"),
New_Item ("April", "30 Days"),
New_Item ("May", "31 Days"),
New_Item ("June", "30 Days"),
New_Item ("July", "31 Days"),
New_Item ("August", "31 Days"),
New_Item ("September", "30 Days"),
New_Item ("October", "31 Days"),
New_Item ("November", "30 Days"),
New_Item ("December", "31 Days"),
Null_Item);
M : Menu := New_Menu (I);
Flip_State : Boolean := True;
Hide_Long : Boolean := False;
type Format_Code is (Four_By_1, Four_By_2, Four_By_3);
type Operations is (Flip, Reorder, Reformat, Reselect, Describe);
type Change is array (Operations) of Boolean;
pragma Pack (Change);
No_Change : constant Change := Change'(others => False);
Current_Format : Format_Code := Four_By_1;
To_Change : Change := No_Change;
function My_Driver (M : Menu;
K : Key_Code;
P : Panel) return Boolean
is
begin
if M = Null_Menu then
raise Menu_Exception;
end if;
if P = Null_Panel then
raise Panel_Exception;
end if;
To_Change := No_Change;
if K in User_Key_Code'Range then
if K = QUIT then
return True;
end if;
end if;
if K in Special_Key_Code'Range then
case K is
when Key_F4 =>
To_Change (Flip) := True;
return True;
when Key_F5 =>
To_Change (Reformat) := True;
Current_Format := Four_By_1;
return True;
when Key_F6 =>
To_Change (Reformat) := True;
Current_Format := Four_By_2;
return True;
when Key_F7 =>
To_Change (Reformat) := True;
Current_Format := Four_By_3;
return True;
when Key_F8 =>
To_Change (Reorder) := True;
return True;
when Key_F9 =>
To_Change (Reselect) := True;
return True;
when Key_F10 =>
if Current_Format /= Four_By_3 then
To_Change (Describe) := True;
return True;
else
return False;
end if;
when Key_F11 =>
Hide_Long := not Hide_Long;
declare
O : Item_Option_Set;
begin
for J in I'Range loop
Get_Options (I (J), O);
O.Selectable := True;
if Hide_Long then
case J is
when 1 | 3 | 5 | 7 | 8 | 10 | 12 =>
O.Selectable := False;
when others => null;
end case;
end if;
Set_Options (I (J), O);
end loop;
end;
return False;
when others => null;
end case;
end if;
return False;
end My_Driver;
procedure Set_Option_Key
is
O : Menu_Option_Set;
begin
if Current_Format = Four_By_1 then
Set_Soft_Label_Key (8, "");
else
Get_Options (M, O);
if O.Row_Major_Order then
Set_Soft_Label_Key (8, "O-Col");
else
Set_Soft_Label_Key (8, "O-Row");
end if;
end if;
Refresh_Soft_Label_Keys_Without_Update;
end Set_Option_Key;
procedure Set_Select_Key
is
O : Menu_Option_Set;
begin
Get_Options (M, O);
if O.One_Valued then
Set_Soft_Label_Key (9, "Multi");
else
Set_Soft_Label_Key (9, "Singl");
end if;
Refresh_Soft_Label_Keys_Without_Update;
end Set_Select_Key;
procedure Set_Description_Key
is
O : Menu_Option_Set;
begin
if Current_Format = Four_By_3 then
Set_Soft_Label_Key (10, "");
else
Get_Options (M, O);
if O.Show_Descriptions then
Set_Soft_Label_Key (10, "-Desc");
else
Set_Soft_Label_Key (10, "+Desc");
end if;
end if;
Refresh_Soft_Label_Keys_Without_Update;
end Set_Description_Key;
procedure Set_Hide_Key
is
begin
if Hide_Long then
Set_Soft_Label_Key (11, "Enab");
else
Set_Soft_Label_Key (11, "Disab");
end if;
Refresh_Soft_Label_Keys_Without_Update;
end Set_Hide_Key;
begin
Push_Environment ("MENU01");
Notepad ("MENU-PAD01");
Default_Labels;
Set_Soft_Label_Key (4, "Flip");
Set_Soft_Label_Key (5, "4x1");
Set_Soft_Label_Key (6, "4x2");
Set_Soft_Label_Key (7, "4x3");
Set_Option_Key;
Set_Select_Key;
Set_Description_Key;
Set_Hide_Key;
Set_Format (M, 4, 1);
loop
Mh.Drive_Me (M);
exit when To_Change = No_Change;
if To_Change (Flip) then
if Flip_State then
Flip_State := False;
Set_Spacing (M, 3, 2, 0);
else
Flip_State := True;
Set_Spacing (M);
end if;
elsif To_Change (Reformat) then
case Current_Format is
when Four_By_1 => Set_Format (M, 4, 1);
when Four_By_2 => Set_Format (M, 4, 2);
when Four_By_3 =>
declare
O : Menu_Option_Set;
begin
Get_Options (M, O);
O.Show_Descriptions := False;
Set_Options (M, O);
Set_Format (M, 4, 3);
end;
end case;
Set_Option_Key;
Set_Description_Key;
elsif To_Change (Reorder) then
declare
O : Menu_Option_Set;
begin
Get_Options (M, O);
O.Row_Major_Order := not O.Row_Major_Order;
Set_Options (M, O);
Set_Option_Key;
end;
elsif To_Change (Reselect) then
declare
O : Menu_Option_Set;
begin
Get_Options (M, O);
O.One_Valued := not O.One_Valued;
Set_Options (M, O);
Set_Select_Key;
end;
elsif To_Change (Describe) then
declare
O : Menu_Option_Set;
begin
Get_Options (M, O);
O.Show_Descriptions := not O.Show_Descriptions;
Set_Options (M, O);
Set_Description_Key;
end;
else
null;
end if;
end loop;
Set_Spacing (M);
Pop_Environment;
pragma Assert (Get_Index (Items (M, 1)) = Get_Index (I (1)));
Delete (M);
Free (I, True);
end Spacing_Test;
end Spacing_Demo;
procedure Demo
is
type User_Data is new Integer;
type User_Data_Access is access User_Data;
package MUD is new Menu_User_Data (User_Data, User_Data_Access);
package IUD is new Item_User_Data (User_Data, User_Data_Access);
function My_Driver (M : Menu;
K : Key_Code;
P : Panel) return Boolean;
package Mh is new Sample.Menu_Demo.Handler (My_Driver);
Itm : Item_Array_Access := new Item_Array'
(New_Item ("Menu Layout Options"),
New_Item ("Demo of Hook functions"),
Null_Item);
M : Menu := New_Menu (Itm);
U1 : constant User_Data_Access := new User_Data'(4711);
U2 : User_Data_Access;
U3 : constant User_Data_Access := new User_Data'(4712);
U4 : User_Data_Access;
function My_Driver (M : Menu;
K : Key_Code;
P : Panel) return Boolean
is
Idx : constant Positive := Get_Index (Current (M));
begin
if K in User_Key_Code'Range then
if K = QUIT then
return True;
elsif K = SELECT_ITEM then
if Idx in Itm'Range then
Hide (P);
Update_Panels;
end if;
case Idx is
when 1 => Spacing_Demo.Spacing_Test;
when others => Not_Implemented;
end case;
if Idx in Itm'Range then
Top (P);
Show (P);
Update_Panels;
Update_Screen;
end if;
end if;
end if;
return False;
end My_Driver;
begin
Push_Environment ("MENU00");
Notepad ("MENU-PAD00");
Default_Labels;
Refresh_Soft_Label_Keys_Without_Update;
Set_Pad_Character (M, '|');
MUD.Set_User_Data (M, U1);
IUD.Set_User_Data (Itm (1), U3);
Mh.Drive_Me (M);
MUD.Get_User_Data (M, U2);
pragma Assert (U1 = U2 and U1.all = 4711);
IUD.Get_User_Data (Itm (1), U4);
pragma Assert (U3 = U4 and U3.all = 4712);
Pop_Environment;
Delete (M);
Free (Itm, True);
end Demo;
end Sample.Menu_Demo;