jclarraylists.pas

East make Tray Icon in delphi

{**************************************************************************************************}
{                                                                                                  }
{ Project JEDI Code Library (JCL)                                                                  }
{                                                                                                  }
{ The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License"); }
{ you may not use this file except in compliance with the License. You may obtain a copy of the    }
{ License at http://www.mozilla.org/MPL/                                                           }
{                                                                                                  }
{ Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF   }
{ ANY KIND, either express or implied. See the License for the specific language governing rights  }
{ and limitations under the License.                                                               }
{                                                                                                  }
{ The Original Code is ArrayList.pas.                                                              }
{                                                                                                  }
{ The Initial Developer of the Original Code is Jean-Philippe BEMPEL aka RDM. Portions created by  }
{ Jean-Philippe BEMPEL are Copyright (C) Jean-Philippe BEMPEL (rdm_30 att yahoo dott com)          }
{ All rights reserved.                                                                             }
{                                                                                                  }
{**************************************************************************************************}
{                                                                                                  }
{ The Delphi Container Library                                                                     }
{                                                                                                  }
{**************************************************************************************************}

// Last modified: $Date: 2005/03/08 15:14:00 $
// For history see end of file

unit JclArrayLists;

{$I jcl.inc}

interface

uses
  Classes,
  JclBase, JclAbstractContainers, JclContainerIntf;

type
  TJclIntfArrayList = class(TJclAbstractContainer, IJclIntfCollection,
      IJclIntfList, IJclIntfArray, IJclIntfCloneable)
  private
    FElementData: TDynIInterfaceArray;
    FSize: Integer;
    FCapacity: Integer;
    procedure SetCapacity(ACapacity: Integer);
  protected
    procedure Grow; virtual;
    { IJclIntfCollection }
    function Add(AInterface: IInterface): Boolean; overload;
    function AddAll(ACollection: IJclIntfCollection): Boolean; overload;
    procedure Clear;
    function Contains(AInterface: IInterface): Boolean;
    function ContainsAll(ACollection: IJclIntfCollection): Boolean;
    function Equals(ACollection: IJclIntfCollection): Boolean;
    function First: IJclIntfIterator;
    function IsEmpty: Boolean;
    function Last: IJclIntfIterator;
    function Remove(AInterface: IInterface): Boolean; overload;
    function RemoveAll(ACollection: IJclIntfCollection): Boolean;
    function RetainAll(ACollection: IJclIntfCollection): Boolean;
    function Size: Integer;
    { IJclIntfList }
    procedure Insert(Index: Integer; AInterface: IInterface); overload;
    function InsertAll(Index: Integer; ACollection: IJclIntfCollection): Boolean; overload;
    function GetObject(Index: Integer): IInterface;
    function IndexOf(AInterface: IInterface): Integer;
    function LastIndexOf(AInterface: IInterface): Integer;
    function Remove(Index: Integer): IInterface; overload;
    procedure SetObject(Index: Integer; AInterface: IInterface);
    function SubList(First, Count: Integer): IJclIntfList;
    { IJclIntfCloneable }
    function Clone: IInterface;
  public
    constructor Create(ACapacity: Integer = DefaultContainerCapacity); overload;
    constructor Create(ACollection: IJclIntfCollection); overload;
    destructor Destroy; override;
    property Capacity: Integer read FCapacity write SetCapacity;
  end;

  //Daniele Teti 02/03/2005
  TJclStrArrayList = class(TJclStrCollection, IJclStrList, IJclStrArray, IJclCloneable)
  private
    FCapacity: Integer;
    FElementData: TDynStringArray;
    FSize: Integer;
    procedure SetCapacity(ACapacity: Integer);
  protected
    procedure Grow; virtual;
    { IJclStrCollection }
    function Add(const AString: string): Boolean; overload; override;
    function AddAll(ACollection: IJclStrCollection): Boolean; overload; override;
    procedure Clear; override;
    function Contains(const AString: string): Boolean; override;
    function ContainsAll(ACollection: IJclStrCollection): Boolean; override;
    function Equals(ACollection: IJclStrCollection): Boolean; override;
    function First: IJclStrIterator; override;
    function IsEmpty: Boolean; override;
    function Last: IJclStrIterator; override;
    function Remove(const AString: string): Boolean; overload; override;
    function RemoveAll(ACollection: IJclStrCollection): Boolean; override;
    function RetainAll(ACollection: IJclStrCollection): Boolean; override;
    function Size: Integer; override;
    { IJclStrList }
    procedure Insert(Index: Integer; const AString: string); overload;
    function InsertAll(Index: Integer; ACollection: IJclStrCollection): Boolean; overload;
    function GetString(Index: Integer): string;
    function IndexOf(const AString: string): Integer;
    function LastIndexOf(const AString: string): Integer;
    function Remove(Index: Integer): string; overload;
    procedure SetString(Index: Integer; const AString: string);
    function SubList(First, Count: Integer): IJclStrList;
  public
    constructor Create(ACapacity: Integer = DefaultContainerCapacity); overload;
    constructor Create(ACollection: IJclStrCollection); overload;
    destructor Destroy; override;
    { IJclCloneable }
    function Clone: TObject;
    property Capacity: Integer read FCapacity write SetCapacity;
  end;

  TJclArrayList = class(TJclAbstractContainer, IJclCollection, IJclList,
      IJclArray, IJclCloneable)
  private
    FCapacity: Integer;
    FElementData: TDynObjectArray;
    FOwnsObjects: Boolean;
    FSize: Integer;
    procedure SetCapacity(ACapacity: Integer);
  protected
    procedure Grow; virtual;
    procedure FreeObject(var AObject: TObject);
    { IJclCollection }
    function Add(AObject: TObject): Boolean; overload;
    function AddAll(ACollection: IJclCollection): Boolean; overload;
    procedure Clear;
    function Contains(AObject: TObject): Boolean;
    function ContainsAll(ACollection: IJclCollection): Boolean;
    function Equals(ACollection: IJclCollection): Boolean;
    function First: IJclIterator;
    function IsEmpty: Boolean;
    function Last: IJclIterator;
    function Remove(AObject: TObject): Boolean; overload;
    function RemoveAll(ACollection: IJclCollection): Boolean;
    function RetainAll(ACollection: IJclCollection): Boolean;
    function Size: Integer;
    { IJclList }
    procedure Insert(Index: Integer; AObject: TObject); overload;
    function InsertAll(Index: Integer; ACollection: IJclCollection): Boolean; overload;
    function GetObject(Index: Integer): TObject;
    function IndexOf(AObject: TObject): Integer;
    function LastIndexOf(AObject: TObject): Integer;
    function Remove(Index: Integer): TObject; overload;
    procedure SetObject(Index: Integer; AObject: TObject);
    function SubList(First, Count: Integer): IJclList;
    { IJclCloneable }
    function Clone: TObject;
  public
    constructor Create(ACapacity: Integer = DefaultContainerCapacity; AOwnsObjects: Boolean = True); overload;
    constructor Create(ACollection: IJclCollection; AOwnsObjects: Boolean = True); overload;
    destructor Destroy; override;
    property Capacity: Integer read FCapacity write SetCapacity;
    property OwnsObjects: Boolean read FOwnsObjects;
  end;

implementation

uses
  SysUtils,
  JclResources;

//=== { TIntfItr } ===========================================================

type
  TIntfItr = class(TJclAbstractContainer, IJclIntfIterator)
  private
    FCursor: Integer;
    FOwnList: TJclIntfArrayList;
    //FLastRet: Integer;
    FSize: Integer;
  protected
    { IJclIntfIterator}
    procedure Add(AInterface: IInterface);
    function GetObject: IInterface;
    function HasNext: Boolean;
    function HasPrevious: Boolean;
    function Next: IInterface;
    function NextIndex: Integer;
    function Previous: IInterface;
    function PreviousIndex: Integer;
    procedure Remove;
    procedure SetObject(AInterface: IInterface);
  public
    constructor Create(AOwnList: TJclIntfArrayList);
    destructor Destroy; override;
  end;

constructor TIntfItr.Create(AOwnList: TJclIntfArrayList);
begin
  inherited Create;
  FCursor := 0;
  FOwnList := AOwnList;
  FOwnList._AddRef; // Add a ref because FOwnList is not an interface !
  //FLastRet := -1;
  FSize := FOwnList.Size;
end;

destructor TIntfItr.Destroy;
begin
  FOwnList._Release;
  inherited Destroy;
end;

procedure TIntfItr.Add(AInterface: IInterface);
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  // inlined FOwnList.Add
  if FOwnList.FSize = FOwnList.Capacity then
    FOwnList.Grow;
  if FOwnList.FSize <> FCursor then
    System.Move(FOwnList.FElementData[FCursor], FOwnList.FElementData[FCursor + 1],
      (FOwnList.FSize - FCursor) * SizeOf(IInterface));
  // (rom) otherwise interface reference counting may crash
  FillChar(FOwnList.FElementData[FCursor], SizeOf(IInterface), 0);
  FOwnList.FElementData[FCursor] := AInterface;
  Inc(FOwnList.FSize);

  Inc(FSize);
  Inc(FCursor);
  //FLastRet := -1;
end;

function TIntfItr.GetObject: IInterface;
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  Result := FOwnList.FElementData[FCursor];
end;

function TIntfItr.HasNext: Boolean;
begin
  Result := FCursor < FSize;
end;

function TIntfItr.HasPrevious: Boolean;
begin
  Result := FCursor > 0;
end;

function TIntfItr.Next: IInterface;
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  Result := FOwnList.FElementData[FCursor];
  //FLastRet := FCursor;
  Inc(FCursor);
end;

function TIntfItr.NextIndex: Integer;
begin
  Result := FCursor;
end;

function TIntfItr.Previous: IInterface;
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  Dec(FCursor);
  //FLastRet := FCursor;
  Result := FOwnList.FElementData[FCursor];
end;

function TIntfItr.PreviousIndex: Integer;
begin
  Result := FCursor - 1;
end;

procedure TIntfItr.Remove;
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  with FOwnList do
  begin
    FElementData[FCursor] := nil; // Force Release
    if FSize <> FCursor then
      System.Move(FElementData[FCursor + 1], FElementData[FCursor],
        (FSize - FCursor) * SizeOf(IInterface));
  end;
  Dec(FOwnList.FSize);
  Dec(FSize);
end;

procedure TIntfItr.SetObject(AInterface: IInterface);
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
  {
  if FLastRet = -1 then
    raise EJclIllegalState.Create(SIllegalState);
  }
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  FOwnList.FElementData[FCursor] := AInterface;
end;

//=== { TStrItr } ============================================================

type
  TStrItr = class(TJclAbstractContainer, IJclStrIterator)
  private
    FCursor: Integer;
    FOwnList: TJclStrArrayList;
    //FLastRet: Integer;
    FSize: Integer;
  protected
    { IJclStrIterator}
    procedure Add(const AString: string);
    function GetString: string;
    function HasNext: Boolean;
    function HasPrevious: Boolean;
    function Next: string;
    function NextIndex: Integer;
    function Previous: string;
    function PreviousIndex: Integer;
    procedure Remove;
    procedure SetString(const AString: string);
  public
    constructor Create(AOwnList: TJclStrArrayList);
    destructor Destroy; override;
  end;

constructor TStrItr.Create(AOwnList: TJclStrArrayList);
begin
  inherited Create;
  FCursor := 0;
  FOwnList := AOwnList;
  FOwnList._AddRef; // Add a ref because FOwnList is not an interface !
  //FLastRet := -1;
  FSize := FOwnList.Size;
end;

destructor TStrItr.Destroy;
begin
  FOwnList._Release;
  inherited Destroy;
end;

procedure TStrItr.Add(const AString: string);
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  // inlined FOwnList.Add
  if FOwnList.FSize = FOwnList.Capacity then
    FOwnList.Grow;
  if FOwnList.FSize <> FCursor then
    System.Move(FOwnList.FElementData[FCursor], FOwnList.FElementData[FCursor + 1],
      (FOwnList.FSize - FCursor) * SizeOf(string));
  // (rom) otherwise string reference counting may crash
  FillChar(FOwnList.FElementData[FCursor], SizeOf(string), 0);
  FOwnList.FElementData[FCursor] := AString;
  Inc(FOwnList.FSize);

  Inc(FSize);
  Inc(FCursor);
  //FLastRet := -1;
end;

function TStrItr.GetString: string;
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  Result := FOwnList.FElementData[FCursor];
end;

function TStrItr.HasNext: Boolean;
begin
  Result := FCursor < FSize;
end;

function TStrItr.HasPrevious: Boolean;
begin
  Result := FCursor > 0;
end;

function TStrItr.Next: string;
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  Result := FOwnList.FElementData[FCursor];
  //FLastRet := FCursor;
  Inc(FCursor);
end;

function TStrItr.NextIndex: Integer;
begin
  Result := FCursor;
end;

function TStrItr.Previous: string;
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  Dec(FCursor);
  //FLastRet := FCursor;
  Result := FOwnList.FElementData[FCursor];
end;

function TStrItr.PreviousIndex: Integer;
begin
  Result := FCursor - 1;
end;

procedure TStrItr.Remove;
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  with FOwnList do
  begin
    FElementData[FCursor] := ''; // Force Release
    if FSize <> FCursor then
      System.Move(FElementData[FCursor + 1], FElementData[FCursor],
        (FSize - FCursor) * SizeOf(string));
  end;
  Dec(FOwnList.FSize);
  Dec(FSize);
end;

procedure TStrItr.SetString(const AString: string);
{$IFDEF THREADSAFE}
var
  CS: IInterface;
{$ENDIF THREADSAFE}
begin
  {
  if FLastRet = -1 then
    raise EJclIllegalState.Create(SIllegalState);
  }
{$IFDEF THREADSAFE}
  CS := EnterCriticalSection;
{$ENDIF THREADSAFE}
  FOwnList.FElementData[FCursor] := AString;
end;

//=== { TItr } ===============================================================

type
  TItr = class(TJclAbstractContainer, IJclIterator)