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DataMuseum.dkPresents historical artifacts from the history of: Rational R1000/400 |
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Length: 20480 (0x5000)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Pen_Class, seg_038842, seg_038a95, seg_038a9f
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─ ⟦5a81ac88f⟧ »Space Info Vol 1«
└─⟦this⟧
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─ ⟦cfc2e13cd⟧ »Space Info Vol 2«
└─⟦this⟧
with Arguments;
with Bounded_String;
with Easy_X;
with Message;
with Msg_Report;
with Object;
with Scanner;
with String_Class;
with String_Utilities;
package body Pen_Class is
function Is_Equal_String
(Str1 : String; Str2 : String; Ignore_Case : Boolean := True)
return Boolean renames String_Utilities.Equal;
function Bs_Image (Source : Scanner.B_String) return String
renames Bounded_String.Image;
procedure Bs_Copy (Target : in out Scanner.B_String; Source : String)
renames Bounded_String.Copy;
Max_Pen : constant Integer := 100;
Pen_Table : array (1 .. Max_Pen) of Pen_Ref;
-- initialisation de la table d'instance des stylos
-- ================================================
procedure Init_Instance_Table is
begin
for Ref in Pen_Table'Range loop
if Pen_Table (Ref).Indicator = Used then
Pen_Table (Ref).Font := Small_Font;
Pen_Table (Ref).X := 0;
Pen_Table (Ref).Y := 0;
end if;
end loop;
end Init_Instance_Table;
-- creation d'un objet stylo
-- =========================
function Create return Object.Reference is
use Object;
Found : Boolean := False;
Value : Integer;
begin
for Ref in Pen_Table'Range loop
if Pen_Table (Ref).Indicator = Unused then
Found := True;
Pen_Table (Ref).Indicator := Used;
Value := Ref;
exit;
end if;
end loop;
if Found then
return Object.Create (C_Pen, Value);
else
Msg_Report.Interpret_Error
("Pen instance table full, creation of a new object impossible");
raise Instance_Table_Full;
end if;
end Create;
function Unary_Msg_X (The_Object : Object.Reference)
return Object.Reference is
use Object;
Ref : Integer;
begin
Ref := Object.Identificator (The_Object);
return Object.Create (C_Integer, Integer (Pen_Table (Ref).X));
end Unary_Msg_X;
function Unary_Msg_Y (The_Object : Object.Reference)
return Object.Reference is
use Object;
Ref : Integer;
begin
Ref := Object.Identificator (The_Object);
return Object.Create (C_Integer, Integer (Pen_Table (Ref).Y));
end Unary_Msg_Y;
function Unary_Msg_Font (The_Object : Object.Reference)
return Object.Reference is
Ref : Integer;
Font_Value : Scanner.B_String;
begin
Ref := Object.Identificator (The_Object);
case Pen_Table (Ref).Font is
when Small_Font =>
Bs_Copy (Font_Value, "PetitePlume");
when Medium_Font =>
Bs_Copy (Font_Value, "MoyennePlume");
when Large_Font =>
Bs_Copy (Font_Value, "LargePlume");
end case;
return String_Class.Create (Bs_Image (Font_Value));
end Unary_Msg_Font;
function Unary_Msg_Small_Font
(The_Object : Object.Reference) return Object.Reference is
Ref : Integer;
begin
Ref := Object.Identificator (The_Object);
Pen_Table (Ref).Font := Small_Font;
Easy_X.Set_Font (Pen_Table (Ref).Font);
return Object.Void_Reference;
end Unary_Msg_Small_Font;
function Unary_Msg_Medium_Font
(The_Object : Object.Reference) return Object.Reference is
Ref : Integer;
begin
Ref := Object.Identificator (The_Object);
Pen_Table (Ref).Font := Medium_Font;
Easy_X.Set_Font (Pen_Table (Ref).Font);
return Object.Void_Reference;
end Unary_Msg_Medium_Font;
function Unary_Msg_Large_Font
(The_Object : Object.Reference) return Object.Reference is
Ref : Integer;
begin
Ref := Object.Identificator (The_Object);
Pen_Table (Ref).Font := Large_Font;
Easy_X.Set_Font (Pen_Table (Ref).Font);
return Object.Void_Reference;
end Unary_Msg_Large_Font;
function Unary_Msg_Go_Home
(The_Object : Object.Reference) return Object.Reference is
Ref : Integer;
begin
Ref := Object.Identificator (The_Object);
Pen_Table (Ref).X := 0;
Pen_Table (Ref).Y := 0;
Easy_X.Move_To (0, 0);
return Object.Void_Reference;
end Unary_Msg_Go_Home;
function Unary_Msg_Copy (The_Object : Object.Reference)
return Object.Reference is
Ref, New_Ref : Integer;
New_Object : Object.Reference;
begin
Ref := Object.Identificator (The_Object);
New_Object := Create;
New_Ref := Object.Identificator (New_Object);
Pen_Table (New_Ref) := Pen_Table (Ref);
return New_Object;
end Unary_Msg_Copy;
function Keyword_Msg_X (The_Object : Object.Reference; Arg_Value : Integer)
return Object.Reference is
Ref : Integer;
begin
Ref := Object.Identificator (The_Object);
Pen_Table (Ref).X := Easy_X.Coordinate (Arg_Value);
Easy_X.Move_To (Pen_Table (Ref).X, Pen_Table (Ref).Y);
return Object.Void_Reference;
end Keyword_Msg_X;
function Keyword_Msg_Y (The_Object : Object.Reference; Arg_Value : Integer)
return Object.Reference is
Ref : Integer;
begin
Ref := Object.Identificator (The_Object);
Pen_Table (Ref).Y := Easy_X.Coordinate (Arg_Value);
Easy_X.Move_To (Pen_Table (Ref).X, Pen_Table (Ref).Y);
return Object.Void_Reference;
end Keyword_Msg_Y;
function Keyword_Msg_Write
(Arg_Object : Object.Reference) return Object.Reference is
Write_Str : Scanner.B_String;
begin
Bs_Copy (Write_Str, String_Class.In_Text (Arg_Object));
Easy_X.Draw_String (Bs_Image (Write_Str));
return Object.Void_Reference;
end Keyword_Msg_Write;
function Keyword_Msg_Goto_X_Y (The_Object : Object.Reference;
First_Arg_Value, Second_Arg_Value : Integer)
return Object.Reference is
Ref : Integer;
New_X, New_Y : Easy_X.Coordinate;
begin
Ref := Object.Identificator (The_Object);
New_X := Easy_X.Coordinate (First_Arg_Value);
New_Y := Easy_X.Coordinate (Second_Arg_Value);
Pen_Table (Ref).X := New_X;
Pen_Table (Ref).Y := New_Y;
Easy_X.Move_To (Pen_Table (Ref).X, Pen_Table (Ref).Y);
return Object.Void_Reference;
end Keyword_Msg_Goto_X_Y;
-- envoi d'un message a un objet stylo
-- ===================================
function Send (To_Object : Object.Reference;
The_Message : Message.Selector;
With_Arguments : Arguments.List := Arguments.Void_Arguments)
return Object.Reference is
Nb_Argument : Natural;
Msg_List, Msg : Message.Selector := Message.Void_Selector;
Arg_Object, Result : Object.Reference;
Arg_Value, Second_Arg_Value : Integer;
Arg_List : Arguments.List;
begin
Nb_Argument := Arguments.How_Many (With_Arguments);
if Nb_Argument = 0 then
-- reception d'un message unaire
if Is_Equal_String (Message.Image (The_Message), "TonX") then
Msg_Report.Information ("Pen object: unary message -> TonX");
Result := Unary_Msg_X (To_Object);
elsif Is_Equal_String (Message.Image (The_Message), "TonY") then
Msg_Report.Information ("Pen object: unary message -> TonY");
Result := Unary_Msg_Y (To_Object);
elsif Is_Equal_String (Message.Image (The_Message), "TaPlume") then
Msg_Report.Information ("Pen object: unary message -> TaPlume");
Result := Unary_Msg_Font (To_Object);
elsif Is_Equal_String
(Message.Image (The_Message), "PetitePlume") then
Msg_Report.Information
("Pen object: unary message -> PetitePlume");
Result := Unary_Msg_Small_Font (To_Object);
elsif Is_Equal_String
(Message.Image (The_Message), "MoyennePlume") then
Msg_Report.Information
("Pen object: unary message -> MoyennePlume");
Result := Unary_Msg_Medium_Font (To_Object);
elsif Is_Equal_String
(Message.Image (The_Message), "LargePlume") then
Msg_Report.Information
("Pen object: unary message -> LargePlume");
Result := Unary_Msg_Large_Font (To_Object);
elsif Is_Equal_String
(Message.Image (The_Message), "RentreChezToi") then
Msg_Report.Information
("Pen object: unary message -> RentreChezToi");
Result := Unary_Msg_Go_Home (To_Object);
elsif Is_Equal_String (Message.Image (The_Message), "CopieToi") then
Msg_Report.Information
("Pen object: unary message -> CopieToi");
Result := Unary_Msg_Copy (To_Object);
else
Msg_Report.Interpret_Error
("Incorrect unary method " &
Message.Image (The_Message) & " for Pen object");
raise Incorrect_Method;
end if;
elsif Message.Is_Keyword (The_Message) then
-- reception d'un message a mots cles
Message.Cat (Msg_List, The_Message);
Arg_List := With_Arguments;
Arguments.First (Arg_List);
while (Nb_Argument /= 0) loop
Arguments.Read (Arg_List, Arg_Object);
Arg_Value := Object.Identificator (Arg_Object);
Nb_Argument := Nb_Argument - 1;
Message.Extract_Keyword (Msg_List, Msg);
if Is_Equal_String (Message.Image (Msg), "TonX") then
Msg_Report.Information
("Pen object: keyword message -> TonX:");
Result := Keyword_Msg_X (To_Object, Arg_Value);
elsif Is_Equal_String (Message.Image (Msg), "TonY") then
Msg_Report.Information
("Pen object: keyword message -> TonY:");
Result := Keyword_Msg_Y (To_Object, Arg_Value);
elsif Is_Equal_String (Message.Image (Msg), "Ecrire") then
Msg_Report.Information
("Pen object: keyword message -> Ecrire:");
Result := Keyword_Msg_Write (Arg_Object);
elsif Is_Equal_String (Message.Image (Msg), "VaEnX") then
Msg_Report.Information
("Pen object: keyword message -> VaEnX:");
-- recherche de la 2eme partie du message
if (Nb_Argument /= 0) then
Message.Extract_Keyword (Msg_List, Msg);
if (Message.Image (Msg) = "y" or
Message.Image (Msg) = "Y") then
Arguments.Read (Arg_List, Arg_Object);
Second_Arg_Value :=
Object.Identificator (Arg_Object);
Nb_Argument := Nb_Argument - 1;
Msg_Report.Information
("Pen object: keyword message -> Y:");
Result := Keyword_Msg_Goto_X_Y
(To_Object, Arg_Value,
Second_Arg_Value);
else
-- 2eme partie du message incorrecte
Msg_Report.Interpret_Error
("Incorrect keyword method VaEnX " &
Message.Image (Msg) & " for Pen object");
raise Incorrect_Method;
end if;
else
-- 2eme partie du message manquante
Msg_Report.Interpret_Error
("Incorrect keyword method VaEnX" &
" for Pen object");
raise Incorrect_Method;
end if;
else
-- message inexistant
Msg_Report.Interpret_Error
("Incorrect keyword method " &
Message.Image (Msg) & " for Pen object");
raise Incorrect_Method;
end if;
end loop;
else
-- erreur sur reception d'un message binaire
Msg_Report.Interpret_Error
("No binary method allowed " &
Message.Image (The_Message) & " for Pen object");
raise Incorrect_Method;
end if;
return Result;
end Send;
-- affichage du contenu de la table d'instance des stylos
-- ======================================================
procedure Image_Table is
Pen : Pen_Ref;
begin
Msg_Report.Information ("Pen Table contents");
for Ref in Pen_Table'Range loop
Pen := Pen_Table (Ref);
Msg_Report.Continue (Enum_Indicator'Image (Pen.Indicator) &
", Font: " & Easy_X.Fonts'Image (Pen.Font) &
", X: " & Easy_X.Coordinate'Image (Pen.X) &
", Y: " & Easy_X.Coordinate'Image (Pen.Y));
end loop;
end Image_Table;
end Pen_Class;
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Free Block Chain:
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