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author | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2010-10-19 16:39:31 +0000 |
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committer | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2010-10-19 16:39:31 +0000 |
commit | 0b60f71cb853b35e53d0b407493dbcfc098ed40e (patch) | |
tree | 03221c792a89f8c885288a73d1041ea5dc7aee4f /mediaplugin/src/lib/collections/CollArray.pas | |
parent | a52499fa9f5e7f37c70bfb7a4145554168ec30f0 (diff) | |
download | usdx-0b60f71cb853b35e53d0b407493dbcfc098ed40e.tar.gz usdx-0b60f71cb853b35e53d0b407493dbcfc098ed40e.tar.xz usdx-0b60f71cb853b35e53d0b407493dbcfc098ed40e.zip |
initial commit
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/experimental@2684 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to 'mediaplugin/src/lib/collections/CollArray.pas')
-rw-r--r-- | mediaplugin/src/lib/collections/CollArray.pas | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/mediaplugin/src/lib/collections/CollArray.pas b/mediaplugin/src/lib/collections/CollArray.pas new file mode 100644 index 00000000..a10ba905 --- /dev/null +++ b/mediaplugin/src/lib/collections/CollArray.pas @@ -0,0 +1,183 @@ +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. |