Discussion :

[J_apprenti]

je suis entrain de realiser un petit composant avec 2 stringlist et j'utilse l'unitè JclUnicode pour gerer l'unicode :

Code :

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private
    FList: TStringList;
    FListW: TWideStringList;
    function GetList(const i{index}: Integer): TStrings;
    function GetListW(const i: Integer): TWideStrings;
    procedure SetList(const i: Integer; const Value: TStrings);
    procedure SetListW(const i: Integer; const Value: TWideStrings);
public
.
...
published
    property MaListe: TStrings index {index} read GetList write SetList stored True;
    property MaListeW: TWideStrings index {index} read GetListW write SetListW stored True;
end;

et voici ce que j'ai eu dans l'inspecteur d'objet :

maLsite avec le petit bouton qui me permet de modifier la liste et malisteW avec un + qui n'a aucun effet .

je ne sais pas si c'est un bug dans la declaration de la TWideStringList dans la jvcl ou c'est quelque chose qui m'echape

voici un bout de l'unitè JclUnicode pour ceux qui n'ont pas la la jvcl :

Code :

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  TConfirmConversionEvent = procedure (Sender: TWideStrings; var Allowed: Boolean) of object;
 
  TWideStrings = class(TPersistent)
  private
    FUpdateCount: Integer;
    FLanguage: LCID;        // language can usually left alone, the system's default is used
    FSaved: Boolean;        // set in SaveToStream, True in case saving was successfull otherwise False
    FNormalizationForm: TNormalizationForm; // determines in which form Unicode strings should be stored
    FOnConfirmConversion: TConfirmConversionEvent;
    FSaveFormat: TSaveFormat;  // overrides the FSaveUnicode flag, initialized when a file is loaded,
                               // expect losses if it is set to sfAnsi before saving
    function GetCommaText: WideString;
    function GetName(Index: Integer): WideString;
    function GetValue(const Name: WideString): WideString;
    procedure ReadData(Reader: TReader);
    procedure SetCommaText(const Value: WideString);
    procedure SetNormalizationForm(const Value: TNormalizationForm);
    procedure SetValue(const Name, Value: WideString);
    procedure WriteData(Writer: TWriter);
    function GetSaveUnicode: Boolean;
    procedure SetSaveUnicode(const Value: Boolean);
  protected
    procedure DefineProperties(Filer: TFiler); override;
    procedure DoConfirmConversion(var Allowed: Boolean); virtual;
    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; abstract;
    procedure PutObject(Index: Integer; AObject: TObject); virtual; abstract;
    procedure SetCapacity(NewCapacity: Integer); virtual;
    procedure SetUpdateState(Updating: Boolean); virtual;
    procedure SetLanguage(Value: LCID); 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: TStrings); overload; virtual;
    procedure AddStrings(Strings: TWideStrings); overload; virtual;
    procedure Assign(Source: TPersistent); override;
    procedure AssignTo(Dest: 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 GetSeparatedText(Separators: WideString): WideString; 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; WithBOM: Boolean = True); virtual;
    procedure SetText(const Value: WideString); virtual;
 
    property Capacity: Integer read GetCapacity write SetCapacity;
    property CommaText: WideString read GetCommaText write SetCommaText;
    property Count: Integer read GetCount;
    property Language: LCID read FLanguage write SetLanguage;
    property Names[Index: Integer]: WideString read GetName;
    property NormalizationForm: TNormalizationForm read FNormalizationForm write SetNormalizationForm default nfC;
    property Objects[Index: Integer]: TObject read GetObject write PutObject;
    property Values[const Name: WideString]: WideString read GetValue write SetValue;
    property Saved: Boolean read FSaved;
    property SaveUnicode: Boolean read GetSaveUnicode write SetSaveUnicode default True;
    property SaveFormat: TSaveFormat read FSaveFormat write FSaveFormat default sfUnicodeLSB;
    property Strings[Index: Integer]: WideString read Get write Put; default;
    property Text: WideString read GetTextStr write SetText;
 
    property OnConfirmConversion: TConfirmConversionEvent read FOnConfirmConversion write FOnConfirmConversion;
  end;
 
  //----- TWideStringList class
  TDynWideCharArray = array of WideChar;
  TWideStringItem = record
    {$IFDEF OWN_WIDESTRING_MEMMGR}
    FString: PWideChar; // "array of WideChar";
    {$ELSE}
    FString: WideString;
    {$ENDIF OWN_WIDESTRING_MEMMGR}
    FObject: TObject;
  end;
 
  TWideStringItemList = array of TWideStringItem;
 
  TWideStringList = class(TWideStrings)
  private
    FList: TWideStringItemList;
    FCount: 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);
    {$IFDEF OWN_WIDESTRING_MEMMGR}
    procedure SetListString(Index: Integer; const S: WideString);
    {$ENDIF OWN_WIDESTRING_MEMMGR}
  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: LCID); 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;

Je remercie d'avance celui(ceux) qui m'eclairera(ont) sur ce point!