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authortobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>2010-10-19 16:39:31 +0000
committertobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>2010-10-19 16:39:31 +0000
commit0b60f71cb853b35e53d0b407493dbcfc098ed40e (patch)
tree03221c792a89f8c885288a73d1041ea5dc7aee4f /mediaplugin/src/lib/collections/CollList.pas
parenta52499fa9f5e7f37c70bfb7a4145554168ec30f0 (diff)
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git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/experimental@2684 b956fd51-792f-4845-bead-9b4dfca2ff2c
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+unit CollList;
+
+(*****************************************************************************
+ * 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: 1.1.1.2 $
+ * $Log: D:\QVCS Repositories\Delphi Collections\CollList.qbt $
+ *
+ * Collection implementations based on sorted TPArrayList instances.
+ *
+ * Revision 1.1.1.2 by: Matthew Greet Rev date: 12/06/04 20:05:54
+ * Capacity property.
+ *
+ * Revision 1.1.1.1 by: Matthew Greet Rev date: 14/02/04 17:45:38
+ * v1.0 branch.
+ *
+ * Revision 1.1 by: Matthew Greet Rev date: 06/04/03 10:41:52
+ * Uses TExposedPArrayList to improve performance.
+ *
+ * Revision 1.0 by: Matthew Greet Rev date: 01/03/03 10:50:02
+ * Initial revision.
+ *
+ * FPC compatibility fixes by: UltraStar Deluxe Team
+ *
+ * $Endlog$
+ *****************************************************************************)
+
+interface
+
+{$IFDEF FPC}
+ {$MODE Delphi}{$H+}
+{$ENDIF}
+
+uses
+ Collections, CollPArray;
+
+type
+ TListSet = class(TAbstractSet)
+ private
+ FList: TExposedPArrayList;
+ protected
+ function GetPosition(const Item: ICollectable): TCollectionPosition; override;
+ procedure TrueAdd2(Position: TCollectionPosition; const Item: ICollectable); override;
+ procedure TrueClear; override;
+ function TrueGet(Position: TCollectionPosition): ICollectable; override;
+ procedure TrueRemove2(Position: TCollectionPosition); override;
+ public
+ constructor Create(NaturalItemsOnly: Boolean); override;
+ destructor Destroy; override;
+ function GetCapacity: Integer; override;
+ procedure SetCapacity(Value: Integer); override;
+ function GetIterator: IIterator; override;
+ function GetNaturalItemIID: TGUID; override;
+ function GetSize: Integer; override;
+ end;
+
+ TListMap = class(TAbstractMap)
+ private
+ FList: TExposedPArrayList;
+ protected
+ function GetAssociationIterator: IMapIterator; override;
+ function GetKeyPosition(const Key: ICollectable): TCollectionPosition; override;
+ procedure TrueClear; override;
+ function TrueGet(Position: TCollectionPosition): IAssociation; override;
+ function TruePut(Position: TCollectionPosition; const Association: IAssociation): IAssociation; override;
+ function TrueRemove2(Position: TCollectionPosition): IAssociation; override;
+ public
+ constructor Create(NaturalItemsOnly: Boolean; NaturalKeysOnly: Boolean); override;
+ destructor Destroy; override;
+ function GetCapacity: Integer; override;
+ procedure SetCapacity(Value: Integer); override;
+ procedure SetKeyComparator(const Value: IComparator); override;
+ function GetNaturalKeyIID: TGUID; override;
+ function GetSize: Integer; override;
+ end;
+
+implementation
+
+type
+ TListPosition = class(TCollectionPosition)
+ private
+ FSearchResult: TSearchResult;
+ public
+ constructor Create(Found: Boolean; SearchResult: TSearchResult);
+ property SearchResult: TSearchResult read FSearchResult;
+ end;
+
+constructor TListSet.Create(NaturalItemsOnly: Boolean);
+begin
+ inherited Create(NaturalItemsOnly);
+ FList := TExposedPArrayList.Create(NaturalItemsOnly);
+ FList.Comparator := Comparator;
+ FList.Sort;
+end;
+
+destructor TListSet.Destroy;
+begin
+ FList.Free;
+ inherited Destroy;
+end;
+
+function TListSet.GetPosition(const Item: ICollectable): TCollectionPosition;
+var
+ SearchResult: TSearchResult;
+begin
+ SearchResult := FList.Search(Item);
+ Result := TListPosition.Create((SearchResult.ResultType = srFoundAtIndex), SearchResult);
+end;
+
+procedure TListSet.TrueAdd2(Position: TCollectionPosition; const Item: ICollectable);
+var
+ SearchResult: TSearchResult;
+ Index: Integer;
+begin
+ SearchResult := TListPosition(Position).SearchResult;
+ Index := SearchResult.Index;
+ if SearchResult.ResultType = srBeforeIndex then
+ FList.TrueInsert(Index, Item)
+ else
+ FList.TrueAppend(Item);
+end;
+
+procedure TListSet.TrueClear;
+begin
+ FList.Clear;
+end;
+
+function TListSet.TrueGet(Position: TCollectionPosition): ICollectable;
+begin
+ Result := FList.Items[TListPosition(Position).SearchResult.Index];
+end;
+
+procedure TListSet.TrueRemove2(Position: TCollectionPosition);
+begin
+ FList.Delete(TListPosition(Position).SearchResult.Index);
+end;
+
+function TListSet.GetCapacity: Integer;
+begin
+ Result := FList.Capacity;
+end;
+
+procedure TListSet.SetCapacity(Value: Integer);
+begin
+ FList.Capacity := Value;
+end;
+
+function TListSet.GetIterator: IIterator;
+begin
+ Result := FList.GetIterator;
+end;
+
+function TListSet.GetNaturalItemIID: TGUID;
+begin
+ Result := ComparableIID;
+end;
+
+function TListSet.GetSize: Integer;
+begin
+ Result := FList.Size;
+end;
+
+constructor TListMap.Create(NaturalItemsOnly: Boolean; NaturalKeysOnly: Boolean);
+begin
+ inherited Create(NaturalItemsOnly, NaturalKeysOnly);
+ FList := TExposedPArrayList.Create(false);
+ FList.Comparator := AssociationComparator;
+ FList.Sort;
+end;
+
+destructor TListMap.Destroy;
+begin
+ FList.Free;
+ inherited Destroy;
+end;
+
+function TListMap.GetAssociationIterator: IMapIterator;
+begin
+ Result := TAssociationIterator.Create(FList.GetIterator);
+end;
+
+function TListMap.GetKeyPosition(const Key: ICollectable): TCollectionPosition;
+var
+ Association: IAssociation;
+ SearchResult: TSearchResult;
+begin
+ Association := TAssociation.Create(Key, nil);
+ SearchResult := FList.Search(Association);
+ Result := TListPosition.Create((SearchResult.ResultType = srFoundAtIndex), SearchResult);
+end;
+
+procedure TListMap.TrueClear;
+begin
+ FList.Clear;
+end;
+
+function TListMap.TrueGet(Position: TCollectionPosition): IAssociation;
+begin
+ Result := (FList.Items[TListPosition(Position).SearchResult.Index]) as IAssociation;
+end;
+
+function TListMap.TruePut(Position: TCollectionPosition; const Association: IAssociation): IAssociation;
+var
+ SearchResult: TSearchResult;
+ Index: Integer;
+begin
+ SearchResult := TListPosition(Position).SearchResult;
+ Index := SearchResult.Index;
+ if SearchResult.ResultType = srFoundAtIndex then
+ begin
+ Result := (FList.Items[Index]) as IAssociation;
+ FList.Items[Index] := Association;
+ end
+ else if SearchResult.ResultType = srBeforeIndex then
+ FList.TrueInsert(Index, Association)
+ else
+ FList.TrueAppend(Association);
+end;
+
+function TListMap.TrueRemove2(Position: TCollectionPosition): IAssociation;
+begin
+ Result := (FList.Items[TListPosition(Position).SearchResult.Index]) as IAssociation;
+ FList.Delete(TListPosition(Position).SearchResult.Index);
+end;
+
+procedure TListMap.SetKeyComparator(const Value: IComparator);
+begin
+ inherited SetKeyComparator(Value);
+ FList.Sort;
+end;
+
+function TListMap.GetCapacity: Integer;
+begin
+ Result := FList.Capacity;
+end;
+
+procedure TListMap.SetCapacity(Value: Integer);
+begin
+ FList.Capacity := Value;
+end;
+
+function TListMap.GetNaturalKeyIID: TGUID;
+begin
+ Result := ComparableIID;
+end;
+
+function TListMap.GetSize: Integer;
+begin
+ Result := FList.Size;
+end;
+
+constructor TListPosition.Create(Found: Boolean; SearchResult: TSearchResult);
+begin
+ inherited Create(Found);
+ FSearchResult := SearchResult;
+end;
+
+end.