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top - metrics - downloadIndex: B T
Length: 22569 (0x5829)
Types: TextFile
Names: »B«
└─⟦bfaa708f6⟧ Bits:30000531 8mm tape, Rational 1000, INSIGHT 1_3_0
└─⟦c51948655⟧ »DATA«
└─⟦266b31e86⟧
└─⟦this⟧
with Parameter_Parser;
with Window_Io;
with String_Utilities;
with Unbounded_String;
package body Screen is
package Wio renames Window_Io;
package U_String is new Unbounded_String (80);
type Screen_Position is
record
Line : Wio.Line_Number;
Column : Wio.Column_Number;
end record;
Item_Labels : constant array (Display_Item_With_Label) of Screen_Position :=
(Weather => (12, 5),
Flight_Info => (12, 21),
Reservations => (12, 41),
Stock_Market => (12, 62),
Call => (4, 60),
Redial => (6, 60),
Modem => (8, 60),
Light_On => (3, 5),
Light_Off => (5, 5),
Service_Call => (7, 5),
Audio_Channel => (14, 5),
Game => (16, 5),
Movie => (18, 5));
type Display_Item_Value_Record is
record
Value : U_String.Variable_String;
Position : Screen_Position;
end record;
Item_Values : constant array (Display_Item_With_Value) of
Display_Item_Value_Record :=
(Light_On => (Value => U_String.Value ("----ON----"),
Position => (4, 19)),
Light_Off => (Value => U_String.Value ("---OFF----"),
Position => (4, 19)),
Service_Call => (Value => U_String.Value (": ----------"),
Position => (7, 17)),
Audio_Channel => (Value => U_String.Value ("1"), Position => (14, 20)),
Game => (Value => U_String.Value ("Pong"), Position => (16, 20)),
Movie => (Value => U_String.Value ("Airport"), Position => (18, 20)),
Smoking_Permitted => (Value => U_String.Value ("NO SMOKING"),
Position => (14, 63)),
Seat_Belt_Required => (Value => U_String.Value ("FASTEN SEAT BELT"),
Position => (16, 60)),
Seat_Number => (Value => U_String.Value ("SEAT 23A"),
Position => (18, 64)));
Light_Field_Values : array (State) of String (1 .. 10) :=
(On => "----ON----", Off => "---OFF----");
Service_Call_Field_Values : array (State) of String (1 .. 12) :=
(On => ": ---CALL---", Off => ": ----------");
subtype Phone_Keyboard_Text_String is String (1 .. 13);
Phone_Keyboard_Upper_Left : constant Screen_Position :=
(Line => 2, Column => 40);
Phone_Keyboard_Text :
constant array (1 .. 9) of Phone_Keyboard_Text_String :=
(1 => "looowooowoook",
2 => "x 1 x 2 x 3 x",
3 => "tooonooonooou",
4 => "x 4 x 5 x 6 x",
5 => "tooonooonooou",
6 => "x 7 x 8 x 9 x",
7 => "tooonooonooou",
8 => "x * x 0 x # x",
9 => "mooovooovoooj"); -- When Window IO graphics characters are used,
-- This produces a telephone keyboard display.
Bold : constant Wio.Font := (Wio.Plain, (Bold => True, others => False));
package Pp is new Parameter_Parser (Option_Id => Boolean);
function Is_Up_Arrow (The_Key : Key) return Boolean is
begin
return The_Key = 206 -- PC arrow keys
or The_Key = 201 -- PC numeric keypad
or The_Key = 229; -- Rational terminal
end Is_Up_Arrow;
function Is_Down_Arrow (The_Key : Key) return Boolean is
begin
return The_Key = 207 -- PC arrow keys
or The_Key = 195 -- PC numeric keypad
or The_Key = 230; -- Rational terminal
end Is_Down_Arrow;
function Is_Left_Arrow (The_Key : Key) return Boolean is
begin
return The_Key = 209 -- PC arrow keys
or The_Key = 197 -- PC numeric keypad
or The_Key = 232; -- Rational terminal
end Is_Left_Arrow;
function Is_Right_Arrow (The_Key : Key) return Boolean is
begin
return The_Key = 208 -- PC arrow keys
or The_Key = 199 -- PC numeric keypad
or The_Key = 231; -- Rational terminal
end Is_Right_Arrow;
function Is_Enter_Key (The_Key : Key) return Boolean is
begin
return The_Key = 130 -- both PC enter keys
or The_Key = 131 -- Rational terminal Return key
or The_Key = 228; -- Rational terminal Enter key
end Is_Enter_Key;
function To_String (From : Display_Item) return String is
Location_Of_Underscore : Natural;
Not_Found : constant := 0;
S : constant String := Display_Item'Image (From);
New_S : String (1 .. S'Length) := S;
begin
Location_Of_Underscore := String_Utilities.Locate ('_', New_S);
while Location_Of_Underscore > Not_Found loop
New_S (Location_Of_Underscore) := ' ';
Location_Of_Underscore := String_Utilities.Locate ('_', New_S);
end loop;
return String_Utilities.Upper_Case (New_S);
end To_String;
procedure Create (The_Panel : in out Panel) is
begin
The_Panel.Manager.Start;
end Create;
function Get_Selection (The_Panel : Panel) return Display_Item_With_Label is
Current_Selection : Display_Item_With_Label;
User_Input : Key;
begin
The_Panel.Manager.Get_Current_Highlighted (Current_Selection);
loop
The_Panel.Manager.Highlight (Current_Selection);
The_Panel.Manager.Get (User_Input);
exit when Is_Enter_Key (User_Input);
if Is_Left_Arrow (User_Input) then
case Current_Selection is
when Weather | Light_On | Light_Off |
Service_Call | Audio_Channel | Game | Movie =>
null; -- Can't go left from here.
when Flight_Info | Reservations | Stock_Market =>
Current_Selection :=
Display_Item'Pred (Current_Selection);
when Call =>
Current_Selection := Light_On;
when Redial =>
Current_Selection := Light_Off;
when Modem =>
Current_Selection := Service_Call;
end case;
elsif Is_Right_Arrow (User_Input) then
case Current_Selection is
when Stock_Market | Call | Redial | Modem |
Audio_Channel | Game | Movie =>
null; -- Can't go right from here.
when Weather | Flight_Info | Reservations =>
Current_Selection :=
Display_Item'Succ (Current_Selection);
when Light_On =>
Current_Selection := Call;
when Light_Off =>
Current_Selection := Redial;
when Service_Call =>
Current_Selection := Modem;
end case;
elsif Is_Up_Arrow (User_Input) then
case Current_Selection is
when Audio_Channel =>
Current_Selection := Weather;
when Weather | Flight_Info =>
Current_Selection := Service_Call;
when Reservations | Stock_Market =>
Current_Selection := Modem;
when Redial | Modem | Game | Movie |
Service_Call | Light_Off =>
Current_Selection :=
Display_Item'Pred (Current_Selection);
when Light_On | Call =>
null; -- Can't go up from here.
end case;
elsif Is_Down_Arrow (User_Input) then
case Current_Selection is
when Service_Call =>
Current_Selection := Weather;
when Weather | Flight_Info =>
Current_Selection := Audio_Channel;
when Redial | Call | Audio_Channel |
Game | Light_Off | Light_On =>
Current_Selection :=
Display_Item'Succ (Current_Selection);
when Modem =>
Current_Selection := Stock_Market;
when Reservations | Stock_Market | Movie =>
null; -- Can't go down from here.
end case;
else
null; -- ignore for now.
end if;
end loop;
return Current_Selection;
end Get_Selection;
procedure Close (The_Panel : in out Panel) is
begin
The_Panel.Manager.Kill;
end Close;
procedure Set_Light (To_State : State; On_The_Panel : Panel) is
begin
On_The_Panel.Manager.Set_Light (To_State);
end Set_Light;
procedure Set_Service_Call (To_State : State; On_The_Panel : Panel) is
begin
On_The_Panel.Manager.Set_Service_Call (To_State);
end Set_Service_Call;
task body Panel_Manager is
Window : Window_Io.File_Type;
Current_Highlighted_Item : Display_Item_With_Label := Light_On;
Last_Chosen : array (Display_Item_With_Passenger_Choices) of Positive :=
(others => 1);
function Input_From_User return Key is
Input : Wio.Raw.Key;
Stream : Wio.Raw.Stream_Type;
begin
Wio.Raw.Open (Stream);
Wio.Raw.Get (Stream, Input);
Wio.Raw.Close (Stream);
return Key (Input);
end Input_From_User;
procedure Set_Choice (For_Item : Display_Item_With_Passenger_Choices;
From_List : Passenger_Choice_List) is
Iter : Pp.Iterator := Pp.Parse (From_List);
User_Input : Key;
First_Choice : constant := 1;
Last_Choice : Positive := First_Choice;
function Remove_Underscores (From : String) return String is
New_String : String (1 .. From'Length) := From;
Underscore : constant Character := '_';
Blank : constant Character := ' ';
begin
for I in New_String'First .. New_String'Last loop
if New_String (I) = Underscore then
New_String (I) := Blank;
end if;
end loop;
return New_String;
end Remove_Underscores;
procedure Display_Choices
(For_Item : Display_Item_With_Passenger_Choices;
From_List : in out Pp.Iterator;
Highlight : Positive) is
begin
Wio.Position_Cursor (File => Window,
Line => Item_Labels (For_Item).Line,
Column => Item_Labels (For_Item).Column,
Offset => 0);
Wio.Overwrite (File => Window,
Item => To_String (For_Item),
Image => Wio.Normal,
Kind => Wio.Protected);
Wio.Position_Cursor
(File => Window,
Line => Item_Values (For_Item).Position.Line,
Column => Item_Values (For_Item).Position.Column,
Offset => 0);
Pp.Reset (From_List);
for I in First_Choice .. Last_Choice loop
if I = Highlight then
Wio.Overwrite (File => Window,
Item => Remove_Underscores
(From => Pp.Name (From_List)),
Image => Bold,
Kind => Wio.Protected);
else
Wio.Overwrite (File => Window,
Item => Remove_Underscores
(From => Pp.Name (From_List)),
Image => Wio.Normal,
Kind => Wio.Protected);
end if;
if I /= Last_Choice then
-- Add some spaces between the choices:
Wio.Overwrite (File => Window,
Item => " ",
Image => Wio.Normal,
Kind => Wio.Protected);
end if;
Pp.Next (From_List);
end loop;
end Display_Choices;
procedure Display_Choice (For_Item :
Display_Item_With_Passenger_Choices;
From_List : in out Pp.Iterator) is
String_O_Blanks : constant String (1 .. 36) := (others => ' ');
function Choice_String_Length
(Choice_String : String) return Natural is
begin
return Choice_String'Length;
end Choice_String_Length;
begin
Wio.Position_Cursor
(File => Window,
Line => Item_Values (For_Item).Position.Line,
Column => Item_Values (For_Item).Position.Column,
Offset => 0);
Pp.Reset (From_List);
for I in First_Choice .. Last_Chosen (For_Item) - 1 loop
Pp.Next (From_List);
end loop;
Wio.Overwrite (File => Window,
Item => Remove_Underscores
(From => Pp.Name (From_List)),
Image => Wio.Normal,
Kind => Wio.Protected);
-- Overwrite old choice list with blanks:
Wio.Overwrite (File => Window,
Item => String_O_Blanks
(Choice_String_Length
(Pp.Name (From_List)) ..
String_O_Blanks'Last),
Image => Wio.Normal,
Kind => Wio.Protected);
Wio.Position_Cursor (File => Window,
Line => Item_Labels (For_Item).Line,
Column => Item_Labels (For_Item).Column,
Offset => 0);
Wio.Overwrite (File => Window,
Item => To_String (For_Item),
Image => Bold,
Kind => Wio.Protected);
end Display_Choice;
begin
while not Pp.Done (Iter) loop
Last_Choice := Last_Choice + 1;
Pp.Next (Iter);
end loop;
Pp.Reset (Iter);
loop
exit when Is_Enter_Key (User_Input);
Display_Choices (For_Item => For_Item,
From_List => Iter,
Highlight => Last_Chosen (For_Item));
User_Input := Input_From_User;
if Is_Left_Arrow (User_Input) then
if Last_Chosen (For_Item) /= First_Choice then
Last_Chosen (For_Item) := Last_Chosen (For_Item) - 1;
end if;
elsif Is_Right_Arrow (User_Input) then
if Last_Chosen (For_Item) /= Last_Choice then
Last_Chosen (For_Item) := Last_Chosen (For_Item) + 1;
end if;
else
null; -- ignore unexpected input.
end if;
end loop;
Display_Choice (For_Item, Iter);
end Set_Choice;
begin
accept Start;
Wio.Create (File => Window,
Mode => Wio.Out_File,
Name => "Passenger Control Panel",
Form => "");
for Item in Display_Item_With_Label loop
Wio.Position_Cursor (File => Window,
Line => Item_Labels (Item).Line,
Column => Item_Labels (Item).Column,
Offset => 0);
Wio.Overwrite (File => Window,
Item => To_String (Item),
Image => Wio.Normal,
Kind => Wio.Protected);
end loop;
for Item in Display_Item_With_Value loop
Wio.Position_Cursor (File => Window,
Line => Item_Values (Item).Position.Line,
Column => Item_Values (Item).Position.Column,
Offset => 0);
Wio.Overwrite (File => Window,
Item => U_String.Image (Item_Values (Item).Value),
Image => Wio.Normal,
Kind => Wio.Protected);
end loop;
for Line in Phone_Keyboard_Text'Range loop
Wio.Position_Cursor
(File => Window,
Line => Phone_Keyboard_Upper_Left.Line + Line - 1,
Column => Phone_Keyboard_Upper_Left.Column,
Offset => 0);
Wio.Overwrite (File => Window,
Item => Phone_Keyboard_Text (Line),
Image => (Wio.Graphics, Wio.Vanilla),
Kind => Wio.Protected);
end loop;
loop
select
accept Get (User_Input : out Key) do
User_Input := Input_From_User;
end Get;
or
accept Get_Current_Highlighted
(Item : out Display_Item_With_Label) do
Item := Current_Highlighted_Item;
end Get_Current_Highlighted;
or
accept Highlight (Item : Display_Item_With_Label) do
-- Get rid of bold type on current item:
Wio.Position_Cursor
(File => Window,
Line => Item_Labels (Current_Highlighted_Item).Line,
Column => Item_Labels (Current_Highlighted_Item).Column,
Offset => 0);
Wio.Overwrite (File => Window,
Item => To_String (Current_Highlighted_Item),
Image => Wio.Normal,
Kind => Wio.Protected);
-- Highlight the new item:
Wio.Position_Cursor
(File => Window,
Line => Item_Labels (Item).Line,
Column => Item_Labels (Item).Column,
Offset => 0);
Wio.Overwrite (File => Window,
Item => To_String (Item),
Image => Bold,
Kind => Wio.Protected);
Current_Highlighted_Item := Item;
end Highlight;
or
accept Set_Light (To_State : State) do
Wio.Position_Cursor
(File => Window,
Line => Item_Values (Light_On).Position.Line,
Column => Item_Values (Light_On).Position.Column,
Offset => 0);
Wio.Overwrite (File => Window,
Item => Light_Field_Values (To_State),
Image => Wio.Normal,
Kind => Wio.Protected);
-- Return the cursor to it's old position:
Wio.Position_Cursor
(File => Window,
Line => Item_Labels (Current_Highlighted_Item).Line,
Column => Item_Labels (Current_Highlighted_Item).Column,
Offset => 0);
end Set_Light;
or
accept Set_Service_Call (To_State : State) do
Wio.Position_Cursor
(File => Window,
Line => Item_Values (Service_Call).Position.Line,
Column => Item_Values (Service_Call).Position.Column,
Offset => 0);
Wio.Overwrite (File => Window,
Item => Service_Call_Field_Values (To_State),
Image => Wio.Normal,
Kind => Wio.Protected);
-- Return the cursor to it's old position:
Wio.Position_Cursor
(File => Window,
Line => Item_Labels (Current_Highlighted_Item).Line,
Column => Item_Labels (Current_Highlighted_Item).Column,
Offset => 0);
end Set_Service_Call;
or
accept Get_Choice (For_Item :
Display_Item_With_Passenger_Choices;
From_List : Passenger_Choice_List;
Choice_Number : out Positive) do
Set_Choice (For_Item, From_List);
Choice_Number := Last_Chosen (For_Item);
end Get_Choice;
or
accept Kill;
Wio.Close (File => Window);
exit;
end select;
end loop;
end Panel_Manager;
function Get_Choice (For_Item : Display_Item_With_Passenger_Choices;
From_List : Passenger_Choice_List;
On_The_Panel : Panel) return Passenger_Choice is
Choice_Number : Positive;
Iter : Pp.Iterator := Pp.Parse (From_List);
begin
On_The_Panel.Manager.Get_Choice (For_Item, From_List, Choice_Number);
for I in 1 .. Choice_Number - 1 loop
Pp.Next (Iter);
end loop;
return Pp.Name (Iter);
end Get_Choice;
end Screen;