0.34b/FileClasses/_DataTypes.pas

unit _DataTypes;

interface

type
  TDataField = class
    private
      FOffset: Integer;
      FName:   String;
      FDescription: String;
      FDataLength: Integer;
      function GetValueAsString: String; virtual; abstract;
    public
      constructor Create(Offset: Integer; Name, Description: String);

      property Offset: Integer read FOffset;
      property Name: String read FName;
      property Description: String read FDescription;
      property DataLength: Integer read FDataLength;
      property ValueAsString: String read GetValueAsString;
  end;

  TDataFields = array of TDataField;


  TInt32 = class(TDataField)
    private
      FInt: LongWord;
      function GetValueAsString: String; override;
    public
      constructor Create(Offset: Integer; Name, Description: String);
  end;


  TString = class(TDataField)
    private
      FString: String;
      function GetValueAsString: String; override;
    public
      constructor Create(Offset: Integer; Name, Description: String; Length: Integer);
  end;


  TArray = class(TDataField)
    private
      FDataFields: TDataFields;
      function GetFieldByOffset(Offset: Integer): TDataField;
      function GetFieldByIndex(ID: Integer): TDataField;
    public
      constructor Create(Offset: Integer; Name, Description: String; Length, Count: Integer);
      property FieldByOffset[Offset: Integer]: TDataField read GetFieldByOffset;
      property FieldByIndex[ID: Integer]: TDataField read GetFieldByIndex;
  end;

implementation

uses
  SysUtils;


{ TDataType }

constructor TDataField.Create(Offset: Integer; Name, Description: String);
begin
  FOffset := Offset;
  FName := Name;
  FDescription := Description; 
end;


{ TInt32 }

constructor TInt32.Create(Offset: Integer; Name, Description: String);
begin
  inherited Create(Offset, Name, Description);
end;

function TInt32.GetValueAsString: String;
begin
  Result := IntToStr(FInt);
end;


{ TString }

constructor TString.Create(Offset: Integer; Name, Description: String;
  Length: Integer);
begin
  inherited Create(Offset, Name, Description);

end;

function TString.GetValueAsString: String;
begin
  Result := FString;
end;


{ TArray }

constructor TArray.Create(Offset: Integer; Name, Description: String;
  Length, Count: Integer);
begin
  Exit;
end;

function TArray.GetFieldByIndex(ID: Integer): TDataField;
begin
  if ID < Length(FDataFields) then
    Result := FDataFields[ID]
  else
    Result := nil;
end;

function TArray.GetFieldByOffset(Offset: Integer): TDataField;
var
  i: Integer;
begin
  Result := nil;

  if Length(FDataFields) > 0 then
  begin
    for i := 0 to High(FDataFields) do
      if FDataFields[i].Offset = Offset then
        break;
    if i < Length(FDataFields) then
      Result := FDataFields[i];
  end;
end;


end.
Revision:	205
Committed:	Sun May 27 20:07:55 2007 UTC (18 years, 11 months ago) by alloc
Content type:	text/x-pascal
File size:	2938 byte(s)
Log Message:
#	Content
1	unit _DataTypes;
2
3	interface
4
5	type
6	TDataField = class
7	private
8	FOffset: Integer;
9	FName: String;
10	FDescription: String;
11	FDataLength: Integer;
12	function GetValueAsString: String; virtual; abstract;
13	public
14	constructor Create(Offset: Integer; Name, Description: String);
15
16	property Offset: Integer read FOffset;
17	property Name: String read FName;
18	property Description: String read FDescription;
19	property DataLength: Integer read FDataLength;
20	property ValueAsString: String read GetValueAsString;
21	end;
22
23	TDataFields = array of TDataField;
24
25
26	TInt32 = class(TDataField)
27	private
28	FInt: LongWord;
29	function GetValueAsString: String; override;
30	public
31	constructor Create(Offset: Integer; Name, Description: String);
32	end;
33
34
35	TString = class(TDataField)
36	private
37	FString: String;
38	function GetValueAsString: String; override;
39	public
40	constructor Create(Offset: Integer; Name, Description: String; Length: Integer);
41	end;
42
43
44
45	TArray = class(TDataField)
46	private
47	FDataFields: TDataFields;
48	function GetFieldByOffset(Offset: Integer): TDataField;
49	function GetFieldByIndex(ID: Integer): TDataField;
50	public
51	constructor Create(Offset: Integer; Name, Description: String; Length, Count: Integer);
52	property FieldByOffset[Offset: Integer]: TDataField read GetFieldByOffset;
53	property FieldByIndex[ID: Integer]: TDataField read GetFieldByIndex;
54	end;
55
56	implementation
57
58	uses
59	SysUtils;
60
61
62	{ TDataType }
63
64	constructor TDataField.Create(Offset: Integer; Name, Description: String);
65	begin
66	FOffset := Offset;
67	FName := Name;
68	FDescription := Description;
69	end;
70
71
72
73	{ TInt32 }
74
75	constructor TInt32.Create(Offset: Integer; Name, Description: String);
76	begin
77	inherited Create(Offset, Name, Description);
78	end;
79
80	function TInt32.GetValueAsString: String;
81	begin
82	Result := IntToStr(FInt);
83	end;
84
85
86
87	{ TString }
88
89	constructor TString.Create(Offset: Integer; Name, Description: String;
90	Length: Integer);
91	begin
92	inherited Create(Offset, Name, Description);
93
94	end;
95
96	function TString.GetValueAsString: String;
97	begin
98	Result := FString;
99	end;
100
101
102
103	{ TArray }
104
105	constructor TArray.Create(Offset: Integer; Name, Description: String;
106	Length, Count: Integer);
107	begin
108	Exit;
109	end;
110
111	function TArray.GetFieldByIndex(ID: Integer): TDataField;
112	begin
113	if ID < Length(FDataFields) then
114	Result := FDataFields[ID]
115	else
116	Result := nil;
117	end;
118
119	function TArray.GetFieldByOffset(Offset: Integer): TDataField;
120	var
121	i: Integer;
122	begin
123	Result := nil;
124
125	if Length(FDataFields) > 0 then
126	begin
127	for i := 0 to High(FDataFields) do
128	if FDataFields[i].Offset = Offset then
129	break;
130	if i < Length(FDataFields) then
131	Result := FDataFields[i];
132	end;
133	end;
134
135
136	end.