expertcad/POWERCAD30/UNITS/WStrList.pas
2025-05-12 10:07:51 +03:00

1030 lines
25 KiB
ObjectPascal

unit WStrList;
interface
uses
SysUtils, Windows, Classes, pCtypesUtils;
type
{ TWideStrings class }
TWideStrings = class(TStrings)
private
FUpdateCount: Integer;
FLanguage: TLanguage;
function GetCommaText: WideString;
function GetName(Index: Integer): WideString;
function GetValue(const Name: WideString): WideString;
procedure ReadData(Reader: TReader);
procedure SetCommaText(const Value: WideString);
procedure SetValue(const Name, Value: WideString);
procedure WriteData(Writer: TWriter);
protected
procedure DefineProperties(Filer: TFiler); override;
procedure Error(const Msg: string; Data: Integer);
function Get(Index: Integer): WideString; virtual; abstract;
function GetCapacity: Integer; virtual;
function GetCount: Integer; virtual; abstract;
function GetObject(Index: Integer): TObject; virtual;
function GetTextStr: WideString; virtual;
procedure Put(Index: Integer; const S: WideString); virtual;
procedure PutObject(Index: Integer; AObject: TObject); virtual;
procedure SetCapacity(NewCapacity: Integer); virtual;
procedure SetTextStr(const Value: WideString); virtual;
procedure SetUpdateState(Updating: Boolean); virtual;
procedure SetLanguage(Value: TLanguage); virtual;
function GetLanguage: TLanguage; virtual;
public
constructor Create;
function Add(const S: WideString): Integer; virtual;
function AddObject(const S: WideString; AObject: TObject): Integer; virtual;
procedure Append(const S: WideString);
procedure AddStrings(Strings: TWideStrings); virtual;
procedure Assign(Source: TPersistent); override;
procedure BeginUpdate;
procedure Clear; virtual; abstract;
procedure Delete(Index: Integer); virtual; abstract;
procedure EndUpdate;
function Equals(Strings: TWideStrings): Boolean;
procedure Exchange(Index1, Index2: Integer); virtual;
function GetText: PWideChar; virtual;
function IndexOf(const S: WideString): Integer; virtual;
function IndexOfName(const Name: WideString): Integer;
function IndexOfObject(AObject: TObject): Integer;
procedure Insert(Index: Integer; const S: WideString); virtual; abstract;
procedure InsertObject(Index: Integer; const S: WideString;
AObject: TObject);
procedure LoadFromFile(const FileName: string); virtual;
procedure LoadFromStream(Stream: TStream); virtual;
procedure Move(CurIndex, NewIndex: Integer); virtual;
procedure SaveToFile(const FileName: string); virtual;
procedure SaveToStream(Stream: TStream); virtual;
procedure SetText(Text: PWideChar); virtual;
property Capacity: Integer read GetCapacity write SetCapacity;
property CommaText: WideString read GetCommaText write SetCommaText;
property Count: Integer read GetCount;
property Names[Index: Integer]: WideString read GetName;
property Objects[Index: Integer]: TObject read GetObject write PutObject;
property Values[const Name: WideString]: WideString read GetValue write SetValue;
property Strings[Index: Integer]: WideString read Get write Put; default;
property Text: WideString read GetTextStr write SetTextStr;
property Language: TLanguage read GetLanguage write SetLanguage;
end;
{ TWideStringList class }
PWideStringItem = ^TWideStringItem;
TWideStringItem = record
FString: WideString;
FObject: TObject;
end;
PWideStringItemList = ^TWideStringItemList;
TWideStringItemList = array[0..MaxListSize] of TWideStringItem;
TWideStringList = class(TWideStrings)
private
FList: PStringItemList;
FCount: Integer;
FCapacity: Integer;
FSorted: Boolean;
FDuplicates: TDuplicates;
FOnChange: TNotifyEvent;
FOnChanging: TNotifyEvent;
procedure ExchangeItems(Index1, Index2: Integer);
procedure Grow;
procedure QuickSort(L, R: Integer);
procedure InsertItem(Index: Integer; const S: WideString);
procedure SetSorted(Value: Boolean);
protected
procedure Changed; virtual;
procedure Changing; virtual;
function Get(Index: Integer): WideString; override;
function GetCapacity: Integer; override;
function GetCount: Integer; override;
function GetObject(Index: Integer): TObject; override;
procedure Put(Index: Integer; const S: WideString); override;
procedure PutObject(Index: Integer; AObject: TObject); override;
procedure SetCapacity(NewCapacity: Integer); override;
procedure SetUpdateState(Updating: Boolean); override;
procedure SetLanguage(Value: TLanguage); override;
public
destructor Destroy; override;
function Add(const S: WideString): Integer; override;
procedure Clear; override;
procedure Delete(Index: Integer); override;
procedure Exchange(Index1, Index2: Integer); override;
function Find(const S: WideString; var Index: Integer): Boolean; virtual;
function IndexOf(const S: WideString): Integer; override;
procedure Insert(Index: Integer; const S: WideString); override;
procedure Sort; virtual;
property Duplicates: TDuplicates read FDuplicates write FDuplicates;
property Sorted: Boolean read FSorted write SetSorted;
property OnChange: TNotifyEvent read FOnChange write FOnChange;
property OnChanging: TNotifyEvent read FOnChanging write FOnChanging;
end;
function WideQuotedStr(const S: WideString; Quote: WideChar): WideString;
function WideExtractQuotedStr(var Src: PWideChar; Quote: WideChar): WideString;
implementation
uses
Consts;
type
TCompareFunc = function (W1, W2: WideString; Locale: LCID): Integer;
var
WideCompareText: TCompareFunc;
const
BOM: Word = $FFFE; // Byte Order Mark
SDuplicateString = 'String list does not allow duplicates';
SListIndexError = 'List index out of bounds (%d)';
SSortedListError = 'Operation not allowed on sorted string list';
function WideStrScan(Str: PWideChar; Chr: WideChar): PWideChar; assembler;
asm
PUSH EDI
PUSH EAX
MOV EDI,Str
MOV ECX,0FFFFFFFFH
XOR AX,AX
REPNE SCASW
NOT ECX
POP EDI
MOV AX,Chr
REPNE SCASW
MOV EAX,0
JNE @@1
MOV EAX,EDI
DEC EAX
@@1: POP EDI
end;
function WideStrEnd(Str: PWideChar): PWideChar; assembler;
asm
MOV EDX,EDI
MOV EDI,EAX
MOV ECX,0FFFFFFFFH
XOR AX,AX
REPNE SCASW
LEA EAX,[EDI-1]
MOV EDI,EDX
end;
function WideQuotedStr(const S: WideString; Quote: WideChar): WideString;
var
P, Src, Dest: PWideChar;
AddCount: Integer;
begin
AddCount := 0;
P := WideStrScan(PWideChar(S), Quote);
while P <> nil do
begin
Inc(P);
Inc(AddCount);
P := WideStrScan(P, Quote);
end;
if AddCount = 0 then
begin
Result := WideString(Quote) + S + WideString(Quote);
Exit;
end;
SetLength(Result, Length(S) + AddCount + 2);
Dest := Pointer(Result);
Dest^ := Quote;
Inc(Dest);
Src := Pointer(S);
P := WideStrScan(Src, Quote);
repeat
Inc(P);
Move(Src^, Dest^, P - Src);
Inc(Dest, P - Src);
Dest^ := Quote;
Inc(Dest);
Src := P;
P := WideStrScan(Src, Quote);
until P = nil;
P := WideStrEnd(Src);
Move(Src^, Dest^, P - Src);
Inc(Dest, P - Src);
Dest^ := Quote;
end;
function WideExtractQuotedStr(var Src: PWideChar; Quote: WideChar): WideString;
var
P, Dest: PWideChar;
DropCount: Integer;
begin
Result := '';
if (Src = nil) or (Src^ <> Quote) then Exit;
Inc(Src);
DropCount := 1;
P := Src;
Src := WideStrScan(Src, Quote);
while Src <> nil do // count adjacent pairs of quote chars
begin
Inc(Src);
if Src^ <> Quote then Break;
Inc(Src);
Inc(DropCount);
Src := WideStrScan(Src, Quote);
end;
if Src = nil then Src := WideStrEnd(P);
if ((Src - P) <= 1) then Exit;
if DropCount = 1 then
SetString(Result, P, Src - P - 1)
else
begin
SetLength(Result, Src - P - DropCount);
Dest := PWideChar(Result);
Src := WideStrScan(P, Quote);
while Src <> nil do
begin
Inc(Src);
if Src^ <> Quote then Break;
Move(P^, Dest^, Src - P);
Inc(Dest, Src - P);
Inc(Src);
P := Src;
Src := WideStrScan(Src, Quote);
end;
if Src = nil then Src := WideStrEnd(P);
Move(P^, Dest^, Src - P - 1);
end;
end;
function CompareTextWin95(W1, W2: WideString; Locale: LCID): Integer;
var
S1, S2: string;
CP: Integer;
L1, L2: Integer;
begin
L1:= Length(W1);
L2:= Length(W2);
SetLength(S1, L1);
SetLength(S2, L2);
CP:= CodePageFromLocale(Locale);
WideCharToMultiByte(CP, 0, @W1[1], L1, @S1[1], L1, nil, nil);
WideCharToMultiByte(CP, 0, @W2[1], L2, @S2[1], L2, nil, nil);
Result:= CompareStringA(Locale, NORM_IGNORECASE, @S1[1], Length(S1),
@S2[1], Length(S2)) - 2;
end;
function CompareTextWinNT(W1, W2: WideString; Locale: LCID): Integer;
begin
Result:= CompareStringW(Locale, NORM_IGNORECASE, @W1[1], Length(W1),
@W2[1], Length(W2)) - 2;
end;
constructor TWideStrings.Create;
begin
inherited;
FLanguage:= GetUserDefaultLCID;
end;
procedure TWideStrings.SetLanguage(Value: TLanguage);
begin
FLanguage:= Value;
end;
function TWideStrings.Add(const S: WideString): Integer;
begin
Result := GetCount;
Insert(Result, S);
end;
function TWideStrings.AddObject(const S: WideString; AObject: TObject): Integer;
begin
Result := Add(S);
PutObject(Result, AObject);
end;
procedure TWideStrings.Append(const S: WideString);
begin
Add(S);
end;
procedure TWideStrings.AddStrings(Strings: TWideStrings);
var
I: Integer;
begin
BeginUpdate;
try
for I := 0 to Strings.Count - 1 do
AddObject(Strings[I], Strings.Objects[I]);
finally
EndUpdate;
end;
end;
procedure TWideStrings.Assign(Source: TPersistent);
var
I: Integer;
begin
if Source is TWideStrings then
begin
BeginUpdate;
try
Clear;
AddStrings(TWideStrings(Source));
finally
EndUpdate;
end;
Exit;
end
else if Source is TStrings then
begin
BeginUpdate;
try
for I := 0 to TStrings(Source).Count - 1 do
AddObject(TStrings(Source)[I], TStrings(Source).Objects[I]);
finally
EndUpdate;
end;
end;
inherited Assign(Source);
end;
procedure TWideStrings.BeginUpdate;
begin
if FUpdateCount = 0 then SetUpdateState(True);
Inc(FUpdateCount);
end;
procedure TWideStrings.DefineProperties(Filer: TFiler);
function DoWrite: Boolean;
begin
if Filer.Ancestor <> nil then
begin
Result := True;
if Filer.Ancestor is TWideStrings then
Result := not Equals(TWideStrings(Filer.Ancestor))
end
else Result := Count > 0;
end;
begin
Filer.DefineProperty('WideStrings', ReadData, WriteData, DoWrite);
end;
procedure TWideStrings.EndUpdate;
begin
Dec(FUpdateCount);
if FUpdateCount = 0 then SetUpdateState(False);
end;
function TWideStrings.Equals(Strings: TWideStrings): Boolean;
var
I, Count: Integer;
begin
Result := False;
Count := GetCount;
if Count <> Strings.GetCount then Exit;
for I := 0 to Count - 1 do if Get(I) <> Strings.Get(I) then Exit;
Result := True;
end;
procedure TWideStrings.Error(const Msg: string; Data: Integer);
function ReturnAddr: Pointer;
asm
MOV EAX,[EBP+4]
end;
begin
raise EStringListError.CreateFmt(Msg, [Data]) at ReturnAddr;
end;
procedure TWideStrings.Exchange(Index1, Index2: Integer);
var
TempObject: TObject;
TempString: WideString;
begin
BeginUpdate;
try
TempString := Strings[Index1];
TempObject := Objects[Index1];
Strings[Index1] := Strings[Index2];
Objects[Index1] := Objects[Index2];
Strings[Index2] := TempString;
Objects[Index2] := TempObject;
finally
EndUpdate;
end;
end;
function TWideStrings.GetCapacity: Integer;
begin // descendants may optionally override/replace this default implementation
Result := Count;
end;
function TWideStrings.GetCommaText: WideString;
var
S: WideString;
P: PWideChar;
I, Count: Integer;
begin
Count := GetCount;
if (Count = 1) and (Get(0) = '') then
Result := '""'
else
begin
Result := '';
for I := 0 to Count - 1 do
begin
S := Get(I);
P := PWideChar(S);
while not (P^ in [WideChar(#0)..WideChar(' '),WideChar('"'),WideChar(',')]) do
P := CharNextW(P);
if (P^ <> #0) then S := WideQuotedStr(S, '"');
Result := Result + S + ',';
end;
System.Delete(Result, Length(Result), 1);
end;
end;
function TWideStrings.GetName(Index: Integer): WideString;
var
P: Integer;
begin
Result := Get(Index);
P:= 1;
while Result[P]<>'=' do
Inc(P);
if P <> 0 then
SetLength(Result, P-1) else
SetLength(Result, 0);
end;
function TWideStrings.GetObject(Index: Integer): TObject;
begin
Result := nil;
end;
function TWideStrings.GetText: PWideChar;
var
TempStr: WideString;
begin
TempStr:= GetTextStr;
Result := AllocMem(2*Length(TempStr)+10);
System.Move(TempStr[1], Result^, 2*Length(TempStr)+2);
end;
function TWideStrings.GetTextStr: WideString;
var
I, L, Size, Count: Integer;
P: PWideChar;
S: WideString;
begin
Count := GetCount;
Size := 0;
for I := 0 to Count - 1 do Inc(Size, Length(Get(I)) + 2);
SetString(Result, nil, Size);
P := Pointer(Result);
for I := 0 to Count - 1 do
begin
S := Get(I);
L := Length(S);
if L <> 0 then
begin
System.Move(Pointer(S)^, P^, L*2);
Inc(P, L);
end;
P^ := #13;
Inc(P);
P^ := #10;
Inc(P);
end;
end;
function TWideStrings.GetValue(const Name: WideString): WideString;
var
I: Integer;
begin
I := IndexOfName(Name);
if I >= 0 then
Result := Copy(Get(I), Length(Name) + 2, MaxInt) else
Result := '';
end;
function TWideStrings.IndexOf(const S: WideString): Integer;
begin
for Result := 0 to GetCount - 1 do
if WideCompareText(Get(Result), S, FLanguage) = 0 then Exit;
Result := -1;
end;
function TWideStrings.IndexOfName(const Name: WideString): Integer;
var
P: Integer;
S: string;
begin
for Result := 0 to GetCount - 1 do
begin
S := Get(Result);
P:= 1;
while S[P]<>'=' do
Inc(P);
if (P <> 0) and (WideCompareText(Copy(S, 1, P - 1), Name, FLanguage) = 0) then Exit;
end;
Result := -1;
end;
function TWideStrings.IndexOfObject(AObject: TObject): Integer;
begin
for Result := 0 to GetCount - 1 do
if GetObject(Result) = AObject then Exit;
Result := -1;
end;
procedure TWideStrings.InsertObject(Index: Integer; const S: WideString;
AObject: TObject);
begin
Insert(Index, S);
PutObject(Index, AObject);
end;
procedure TWideStrings.LoadFromFile(const FileName: string);
var
Stream: TStream;
begin
Stream := TFileStream.Create(FileName, fmOpenRead);
try
LoadFromStream(Stream);
finally
Stream.Free;
end;
end;
procedure TWideStrings.LoadFromStream(Stream: TStream);
var
Size: Integer;
S: WideString;
Reverse: Boolean;
BOM: Word;
I: Integer;
begin
BeginUpdate;
try
Stream.Read(BOM, 2);
Reverse:= False;
if BOM=$FEFF then
Reverse:= True
else if BOM<>$FFFE then
Stream.Seek(-2, soFromCurrent);
Size := Stream.Size - Stream.Position;
SetString(S, nil, Size div 2);
Stream.Read(Pointer(S)^, Size);
if Reverse then
for I:= 1 to Length(S) do
S[I]:= WideChar(Swap(Word(S[I])));
SetTextStr(S);
finally
EndUpdate;
end;
end;
procedure TWideStrings.Move(CurIndex, NewIndex: Integer);
var
TempObject: TObject;
TempString: WideString;
begin
if CurIndex <> NewIndex then
begin
BeginUpdate;
try
TempString := Get(CurIndex);
TempObject := GetObject(CurIndex);
Delete(CurIndex);
InsertObject(NewIndex, TempString, TempObject);
finally
EndUpdate;
end;
end;
end;
procedure TWideStrings.Put(Index: Integer; const S: WideString);
var
TempObject: TObject;
begin
TempObject := GetObject(Index);
Delete(Index);
InsertObject(Index, S, TempObject);
end;
procedure TWideStrings.PutObject(Index: Integer; AObject: TObject);
begin
end;
procedure TWideStrings.ReadData(Reader: TReader);
var
S: String;
W: WideString;
I: Integer;
Z: Integer;
N: Word;
begin
BeginUpdate;
try
Clear;
S:= Reader.ReadString;
SetLength(W, Length(S) div 4);
for I:= 1 to Length(S) div 4 do
begin
Val('$'+S[I*4-3]+S[I*4-2]+S[I*4-1]+S[I*2], N, Z);
W[I]:= WideChar(N);
end;
Text:= W;
finally
EndUpdate;
end;
end;
procedure TWideStrings.SaveToFile(const FileName: string);
var
Stream: TStream;
begin
Stream := TFileStream.Create(FileName, fmCreate);
try
SaveToStream(Stream);
finally
Stream.Free;
end;
end;
procedure TWideStrings.SaveToStream(Stream: TStream);
var
S: WideString;
begin
S := GetTextStr;
Stream.Write(BOM, 2);
Stream.WriteBuffer(Pointer(S)^, Length(S)*2);
end;
procedure TWideStrings.SetCapacity(NewCapacity: Integer);
begin
// do nothing - descendants may optionally implement this method
end;
procedure TWideStrings.SetCommaText(const Value: WideString);
var
P, P1: PWideChar;
S: WideString;
begin
BeginUpdate;
try
Clear;
P := PWideChar(Value);
while P^ in [WideChar(#1)..WideChar(' ')] do P := CharNextW(P);
while P^ <> #0 do
begin
if P^ = '"' then
S := WideExtractQuotedStr(P, '"')
else
begin
P1 := P;
while (P^ > ' ') and (P^ <> ',') do P := CharNextW(P);
SetString(S, P1, P - P1);
end;
Add(S);
while P^ in [WideChar(#1)..WideChar(' ')] do P := CharNextW(P);
if P^ = ',' then
repeat
P := CharNextW(P);
until not (P^ in [WideChar(#1)..WideChar(' ')]);
end;
finally
EndUpdate;
end;
end;
procedure TWideStrings.SetText(Text: PWideChar);
begin
SetTextStr(Text);
end;
procedure TWideStrings.SetTextStr(const Value: WideString);
var
P, Start: PWideChar;
S: WideString;
begin
BeginUpdate;
try
Clear;
P := Pointer(Value);
if P <> nil then
while P^ <> #0 do
begin
Start := P;
while not (P^ in [WideChar(#0), WideChar(#10), WideChar(#13)]) do Inc(P);
SetString(S, Start, P - Start);
Add(S);
if P^ = #13 then Inc(P);
if P^ = #10 then Inc(P);
end;
finally
EndUpdate;
end;
end;
procedure TWideStrings.SetUpdateState(Updating: Boolean);
begin
end;
procedure TWideStrings.SetValue(const Name, Value: WideString);
var
I: Integer;
begin
I := IndexOfName(Name);
if Value <> '' then
begin
if I < 0 then I := Add('');
Put(I, Name + '=' + Value);
end else
begin
if I >= 0 then Delete(I);
end;
end;
procedure TWideStrings.WriteData(Writer: TWriter);
var
I: Integer;
S: String;
W: WideString;
begin
W:= Text;
S:= '';
for I := 1 to Length(W) do
S:= S+IntToHex(Word(W[1]), 4);
Writer.WriteString(S);
end;
function TWideStrings.GetLanguage: TLanguage;
begin
Result:= Flanguage;
end;
{ TWideStringList }
destructor TWideStringList.Destroy;
begin
FOnChange := nil;
FOnChanging := nil;
inherited Destroy;
if FCount <> 0 then Finalize(FList^[0], FCount);
FCount := 0;
SetCapacity(0);
end;
function TWideStringList.Add(const S: WideString): Integer;
begin
if not Sorted then
Result := FCount
else
if Find(S, Result) then
case Duplicates of
dupIgnore: Exit;
dupError: Error(SDuplicateString, 0);
end;
InsertItem(Result, S);
end;
procedure TWideStringList.Changed;
begin
if (FUpdateCount = 0) and Assigned(FOnChange) then FOnChange(Self);
end;
procedure TWideStringList.Changing;
begin
if (FUpdateCount = 0) and Assigned(FOnChanging) then FOnChanging(Self);
end;
procedure TWideStringList.Clear;
begin
if FCount <> 0 then
begin
Changing;
Finalize(FList^[0], FCount);
FCount := 0;
SetCapacity(0);
Changed;
end;
end;
procedure TWideStringList.Delete(Index: Integer);
begin
if (Index < 0) or (Index >= FCount) then Error(SListIndexError, Index);
Changing;
Finalize(FList^[Index]);
Dec(FCount);
if Index < FCount then
System.Move(FList^[Index + 1], FList^[Index],
(FCount - Index) * SizeOf(TStringItem));
Changed;
end;
procedure TWideStringList.Exchange(Index1, Index2: Integer);
begin
if (Index1 < 0) or (Index1 >= FCount) then Error(SListIndexError, Index1);
if (Index2 < 0) or (Index2 >= FCount) then Error(SListIndexError, Index2);
Changing;
ExchangeItems(Index1, Index2);
Changed;
end;
procedure TWideStringList.ExchangeItems(Index1, Index2: Integer);
var
Temp: Integer;
Item1, Item2: PWideStringItem;
begin
Item1 := @FList^[Index1];
Item2 := @FList^[Index2];
Temp := Integer(Item1^.FString);
Integer(Item1^.FString) := Integer(Item2^.FString);
Integer(Item2^.FString) := Temp;
Temp := Integer(Item1^.FObject);
Integer(Item1^.FObject) := Integer(Item2^.FObject);
Integer(Item2^.FObject) := Temp;
end;
function TWideStringList.Find(const S: WideString; var Index: Integer): Boolean;
var
L, H, I, C: Integer;
begin
Result := False;
L := 0;
H := FCount - 1;
while L <= H do
begin
I := (L + H) shr 1;
C := WideCompareText(FList^[I].FString, S, FLanguage);
if C < 0 then L := I + 1 else
begin
H := I - 1;
if C = 0 then
begin
Result := True;
if Duplicates <> dupAccept then L := I;
end;
end;
end;
Index := L;
end;
function TWideStringList.Get(Index: Integer): WideString;
begin
if (Index < 0) or (Index >= FCount) then Error(SListIndexError, Index);
Result := FList^[Index].FString;
end;
function TWideStringList.GetCapacity: Integer;
begin
Result := FCapacity;
end;
function TWideStringList.GetCount: Integer;
begin
Result := FCount;
end;
function TWideStringList.GetObject(Index: Integer): TObject;
begin
if (Index < 0) or (Index >= FCount) then Error(SListIndexError, Index);
Result := FList^[Index].FObject;
end;
procedure TWideStringList.Grow;
var
Delta: Integer;
begin
if FCapacity > 64 then Delta := FCapacity div 4 else
if FCapacity > 8 then Delta := 16 else
Delta := 4;
SetCapacity(FCapacity + Delta);
end;
function TWideStringList.IndexOf(const S: WideString): Integer;
begin
if not Sorted then Result := inherited IndexOf(S) else
if not Find(S, Result) then Result := -1;
end;
procedure TWideStringList.Insert(Index: Integer; const S: WideString);
begin
if Sorted then Error(SSortedListError, 0);
if (Index < 0) or (Index > FCount) then Error(SListIndexError, Index);
InsertItem(Index, S);
end;
procedure TWideStringList.InsertItem(Index: Integer; const S: WideString);
begin
Changing;
if FCount = FCapacity then Grow;
if Index < FCount then
System.Move(FList^[Index], FList^[Index + 1],
(FCount - Index) * SizeOf(TStringItem));
with FList^[Index] do
begin
Pointer(FString) := nil;
FObject := nil;
FString := S;
end;
Inc(FCount);
Changed;
end;
procedure TWideStringList.Put(Index: Integer; const S: WideString);
begin
if Sorted then Error(SSortedListError, 0);
if (Index < 0) or (Index >= FCount) then Error(SListIndexError, Index);
Changing;
FList^[Index].FString := S;
Changed;
end;
procedure TWideStringList.PutObject(Index: Integer; AObject: TObject);
begin
if (Index < 0) or (Index >= FCount) then Error(SListIndexError, Index);
Changing;
FList^[Index].FObject := AObject;
Changed;
end;
procedure TWideStringList.QuickSort(L, R: Integer);
var
I, J: Integer;
P: WideString;
begin
repeat
I := L;
J := R;
P := FList^[(L + R) shr 1].FString;
repeat
while WideCompareText(FList^[I].FString, P, FLanguage) < 0 do Inc(I);
while WideCompareText(FList^[J].FString, P, FLanguage) > 0 do Dec(J);
if I <= J then
begin
ExchangeItems(I, J);
Inc(I);
Dec(J);
end;
until I > J;
if L < J then QuickSort(L, J);
L := I;
until I >= R;
end;
procedure TWideStringList.SetCapacity(NewCapacity: Integer);
begin
ReallocMem(FList, NewCapacity * SizeOf(TStringItem));
FCapacity := NewCapacity;
end;
procedure TWideStringList.SetSorted(Value: Boolean);
begin
if FSorted <> Value then
begin
if Value then Sort;
FSorted := Value;
end;
end;
procedure TWideStringList.SetUpdateState(Updating: Boolean);
begin
if Updating then Changing else Changed;
end;
procedure TWideStringList.Sort;
begin
if not Sorted and (FCount > 1) then
begin
Changing;
QuickSort(0, FCount - 1);
Changed;
end;
end;
procedure TWideStringList.SetLanguage(Value: TLanguage);
begin
inherited;
if Sorted then
Sort;
end;
var
OSVI: TOSVersionInfoA;
initialization
OSVI.dwOSVersionInfoSize:= SizeOf(OSVI);
GetVersionExA(OSVI);
if OSVI.dwPlatformId=VER_PLATFORM_WIN32_NT then
@WideCompareText:= @CompareTextWinNT
else
@WideCompareText:= @CompareTextWin95;
end.