1 files changed, 183 insertions, 0 deletions
diff --git a/src/lib/collections/CollArray.pas b/src/lib/collections/CollArray.pas
new file mode 100644
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+unit CollArray;
+
+(*****************************************************************************
+ * Copyright 2003 by Matthew Greet
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+ * details. (http://opensource.org/licenses/lgpl-license.php)
+ * 
+ * See http://www.warmachine.u-net.com/delphi_collections for updates and downloads.
+ *
+ * $Version: v1.0.3 $
+ * $Revision: 1.2 $
+ * $Log: D:\QVCS Repositories\Delphi Collections\CollArray.qbt $
+ * 
+ *   Colllection implementations based on arrays.
+ * 
+ * Revision 1.2  by: Matthew Greet  Rev date: 12/06/04 20:02:16
+ *   Capacity property.
+ * 
+ * Revision 1.1  by: Matthew Greet  Rev date: 06/04/03 10:30:36
+ *   Size property dropped. 
+ *   Unused abstract functions still implemented.
+ * 
+ * Revision 1.0  by: Matthew Greet  Rev date: 01/03/03 10:50:02
+ *   Initial revision.
+ *
+ * FPC compatibility fixes by: UltraStar Deluxe Team
+ *
+ * $Endlog$
+ *****************************************************************************)
+
+{$IFDEF FPC}
+  {$MODE Delphi}{$H+}
+{$ENDIF}
+ 
+interface
+
+uses
+    Collections;
+
+type
+    TArray = class(TAbstractList)
+    private
+        FArray: array of ICollectable;
+    protected
+        function TrueGetItem(Index: Integer): ICollectable; override;
+        procedure TrueSetItem(Index: Integer; const Value: ICollectable); override;
+        procedure TrueAppend(const Item: ICollectable); override;
+        procedure TrueClear; override;
+        function TrueDelete(Index: Integer): ICollectable; override;
+        procedure TrueInsert(Index: Integer; const Item: ICollectable); override;
+    public
+        constructor Create(NaturalItemsOnly: Boolean); override;
+        constructor Create(const ItemArray: array of ICollectable; NaturalItemsOnly: Boolean = false); override;
+        constructor Create(Size: Integer; NaturalItemsOnly: Boolean = false); overload; virtual;
+        constructor Create(const Collection: ICollection); override;
+        destructor Destroy; override;
+        function GetCapacity: Integer; override;
+        procedure SetCapacity(Value: Integer); override;
+        function GetFixedSize: Boolean; override;
+        function GetSize: Integer; override;
+    end;
+
+implementation
+
+constructor TArray.Create(NaturalItemsOnly: Boolean);
+begin
+    Create(0, NaturalItemsOnly);
+end;
+
+constructor TArray.Create(Size: Integer; NaturalItemsOnly: Boolean = false);
+begin
+    inherited Create(NaturalItemsOnly);
+    SetLength(FArray, Size);
+end;
+
+constructor TArray.Create(const ItemArray: array of ICollectable; NaturalItemsOnly: Boolean);
+var
+    Item: ICollectable;
+    ItemError: TCollectionError;
+    I: Integer;
+begin
+    inherited Create(ItemArray, NaturalItemsOnly);
+    SetLength(FArray, Length(ItemArray));
+    for I := Low(ItemArray) to High(ItemArray) do
+    begin
+        Item := ItemArray[I];
+        ItemError := ItemAllowed(Item);
+        if ItemError <> ceOK then
+        begin
+            CollectionError(ItemError);
+        end
+        else
+            Items[I] := Item;
+    end;
+end;
+
+constructor TArray.Create(const Collection: ICollection);
+var
+    Iterator: IIterator;
+    I: Integer;
+begin
+    inherited Create(Collection);
+    SetLength(FArray, Collection.GetSize);
+    Iterator := Collection.GetIterator;
+    I := 0;
+    while not Iterator.EOF do
+    begin
+        Items[I] := Iterator.CurrentItem;
+        Inc(I);
+        Iterator.Next;
+    end;
+end;
+
+destructor TArray.Destroy;
+var
+    I: Integer;
+begin
+    // Delete interface references to all items
+    for I := Low(FArray) to High(FArray) do
+    begin
+        FArray[I] := nil;
+    end;
+    inherited Destroy;
+end;
+
+function TArray.TrueGetItem(Index: Integer): ICollectable;
+begin
+    Result := FArray[Index];
+end;
+
+procedure TArray.TrueSetItem(Index: Integer; const Value: ICollectable);
+begin
+    FArray[Index] := Value;
+end;
+
+procedure TArray.TrueAppend(const Item: ICollectable);
+begin
+    // Ignored as collection is fixed size
+end;
+
+procedure TArray.TrueClear;
+begin
+    // Ignored as collection is fixed size
+end;
+
+function TArray.TrueDelete(Index: Integer): ICollectable;
+begin
+    // Ignored as collection is fixed size
+end;
+
+procedure TArray.TrueInsert(Index: Integer; const Item: ICollectable);
+begin
+    // Ignored as collection is fixed size
+end;
+
+function TArray.GetCapacity: Integer;
+begin
+    Result := Size;
+end;
+
+procedure TArray.SetCapacity(Value: Integer);
+begin
+    // Ignored
+end;
+
+function TArray.GetFixedSize: Boolean;
+begin
+    Result := true;
+end;
+
+function TArray.GetSize: Integer;
+begin
+    Result := Length(FArray);
+end;
+
+end.