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| unit IntList;
// модуль числовго листа. Версия 1.1
interface
uses SysUtils, Variants, Classes ;
type
TIntList = class (TList)
private
procedure writeItemInt(index: integer; const Value: integer);
function readItemInt(index: integer): integer;
function readText: string;
procedure writeText(const Value: string);
public
procedure Add(value:integer); overload;
procedure Insert(index:integer; value: integer); overload;
function indexOf(value:integer):integer; overload;
procedure Sort;
procedure CreateRange(min,max:integer);
procedure CreateRangeReverse(min,max:integer);
procedure LoadFromFile(txtfilename:string);
procedure SaveToFile(txtfilename:string);
property itemInt[index:integer]:integer read readItemInt write writeItemInt; default;
property Text: string read readText write writeText;
destructor Destroy; override;
end;
implementation
{ TIntList }
procedure TIntList.Add(value: integer);
begin
Add(Pointer(value));
end;
procedure TIntList.CreateRange(min, max: integer);
var i:integer;
begin
Clear;
for i := min to max do
Add(i);
end;
procedure TIntList.CreateRangeReverse(min, max: integer);
var i:integer;
begin
Clear;
for i := max downto min do
Add(i);
end;
destructor TIntList.Destroy;
begin
//if Indexes<>nil then Indexes.free;
inherited;
end;
function TIntList.indexOf(value: integer): integer;
begin
result:=indexOf(pointer(value));
end;
procedure TIntList.Insert(index, value: integer);
begin
Insert(index,pointer(value));
end;
procedure TIntList.LoadFromFile(txtfilename: string);
var s:TStringList; i,k:integer;
begin
s:=TStringList.Create;
s.LoadFromFile(txtfilename);
Clear;
for I := 0 to s.Count - 1 do
if TryStrToInt(trim(s[i]),k) then
Add(k);
s.free;
end;
function TIntList.readItemInt(index: integer): integer;
begin
result:=Integer(self.Items[index]);
//result:=10;
end;
function TIntList.readText: string;
var i:integer;
begin
result:='';
for i := 0 to Count-1 do
result:=result+inttostr(self[i])+#13#10;
System.delete(result,length(result)-1,2);
end;
procedure TIntList.SaveToFile(txtfilename: string);
var s:TStringList; i:integer;
begin
s:=TStringList.Create;
for i := 0 to Count - 1 do
s.add(inttostr(self[i]));
s.SaveToFile(txtfilename);
s.free;
end;
procedure TIntList.Sort;
// [url]http://www.delphisources.ru/pages/faq/base/array_shell_sort.html[/url]
var
bis, i, j, k{, ik}: Integer;
h: Integer;
begin
//if Indexes=nil then Indexes:=TIntList.Create;
//Indexes.Clear;
//for i := 0 to Count - 1 do Indexes.Add(i);
bis := Count-1;
k := bis shr 1;// div 2
while k > 0 do
begin
for i := 0 to bis - k do
begin
j := i;
while (j >= 0) and (self[j] > self[j + k]) do
begin
h := self[j]; //ik:=Indexes[j];
self[j] := self[j + k]; //Indexes[j]:=Indexes[j + k];
self[j + k] := h; //Indexes[j + k]:=ik;
if j > k then
Dec(j, k)
else
j := 0;
end; // {end while]
end; // { end for}
k := k shr 1; // div 2
end; // {end while}
end;
procedure TIntList.writeItemInt(index: integer; const Value: integer);
begin
if index<self.Count then self.Items[index]:=Pointer(value) else Add(Value);
end;
procedure TIntList.writeText(const Value: string);
var s:TStringList; i,k:integer;
begin
s:=TStringList.Create;
s.Text:=Value;
Clear;
for i := 0 to s.Count - 1 do
if TryStrToInt(trim(s[i]),k) then Add(k);
s.Free;
end;
end. |
(
Сообщение от crashc
