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author | brunzelchen <brunzelchen@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2010-10-14 18:02:35 +0000 |
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committer | brunzelchen <brunzelchen@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2010-10-14 18:02:35 +0000 |
commit | 8782261d8fa6d2456d85b245b7d01824414b8d51 (patch) | |
tree | 0befc2a96e4dfea7d073f9beb83a310a9f6bdc9c /medley_new/src/lib/collections/CollLibrary.pas | |
parent | d165a085eecd9f0d2e9d603de269941d1d30c620 (diff) | |
download | usdx-8782261d8fa6d2456d85b245b7d01824414b8d51.tar.gz usdx-8782261d8fa6d2456d85b245b7d01824414b8d51.tar.xz usdx-8782261d8fa6d2456d85b245b7d01824414b8d51.zip |
new medley branch, based on the actual (1.1) trunk. the old one will be deleted soon
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/experimental@2666 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to '')
-rw-r--r-- | medley_new/src/lib/collections/CollLibrary.pas | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/medley_new/src/lib/collections/CollLibrary.pas b/medley_new/src/lib/collections/CollLibrary.pas new file mode 100644 index 00000000..b7e3d268 --- /dev/null +++ b/medley_new/src/lib/collections/CollLibrary.pas @@ -0,0 +1,131 @@ +unit CollLibrary; + +(***************************************************************************** + * 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: 1.0.1.1 $ + * $Log: D:\QVCS Repositories\Delphi Collections\CollLibrary.qbt $ + * + * Initial version. + * + * Revision 1.0.1.1 by: Matthew Greet Rev date: 24/10/03 16:48:16 + * v1.0 branch. + * + * Revision 1.0 by: Matthew Greet Rev date: 06/04/03 10:40:32 + * Initial revision. + * + * FPC compatibility fixes by: UltraStar Deluxe Team + * + * $Endlog$ + *****************************************************************************) + +{$IFDEF FPC} + {$MODE Delphi}{$H+} +{$ENDIF} + +interface + +uses + Collections, CollArray, CollHash, CollList, CollPArray, CollWrappers; + +type + TMiscCollectionLibrary = class + public + class function ClassNameToClassType(ClassName: String): TAbstractCollectionClass; + class function EqualIID(const IID1, IID2: TGUID): Boolean; + class function HashCode(Value: String): Integer; + class procedure ShuffleArray(var ItemArray: array of ICollectable); + class procedure ShuffleList(const List: IList); + end; + +implementation + +{ TMiscCollectionLibrary } +class function TMiscCollectionLibrary.ClassNameToClassType(ClassName: String): TAbstractCollectionClass; +begin + if ClassName = 'TArray' then + Result := TArray + else if ClassName = 'THashSet' then + Result := THashSet + else if ClassName = 'THashMap' then + Result := THashMap + else if ClassName = 'THashIntegerMap' then + Result := THashIntegerMap + else if ClassName = 'THashStringMap' then + Result := THashStringMap + else if ClassName = 'TListSet' then + Result := TListSet + else if ClassName = 'TListMap' then + Result := TListMap + else if ClassName = 'TPArrayBag' then + Result := TPArrayBag + else if ClassName = 'TPArraySet' then + Result := TPArraySet + else if ClassName = 'TPArrayList' then + Result := TPArrayList + else if ClassName = 'TPArrayMap' then + Result := TPArrayMap + else + Result := nil; +end; + +class function TMiscCollectionLibrary.EqualIID(const IID1, IID2: TGUID): Boolean; +begin + Result := (IID1.D1 = IID2.D1) and (IID1.D2 = IID2.D2) and (IID1.D3 = IID2.D3) and + (IID1.D4[0] = IID2.D4[0]) and (IID1.D4[1] = IID2.D4[1]) and + (IID1.D4[2] = IID2.D4[2]) and (IID1.D4[3] = IID2.D4[3]) and + (IID1.D4[4] = IID2.D4[4]) and (IID1.D4[5] = IID2.D4[5]) and + (IID1.D4[6] = IID2.D4[6]) and (IID1.D4[7] = IID2.D4[7]); +end; + +class function TMiscCollectionLibrary.HashCode(Value: String): Integer; +var + I: Integer; +begin + Result := 0; + for I := 1 to Length(Value) do + Result := (Result shl 1) xor Ord(Value[I]); +end; + +class procedure TMiscCollectionLibrary.ShuffleArray(var ItemArray: array of ICollectable); +var + Item: ICollectable; + ArraySize, I, Index: Integer; +begin + Randomize; + ArraySize := Length(ItemArray); + for I := 0 to ArraySize - 1 do + begin + Index := (I + Random(ArraySize - 1) + 1) mod ArraySize; + Item := ItemArray[I]; + ItemArray[I] := ItemArray[Index]; + ItemArray[Index] := Item; + end; +end; + +class procedure TMiscCollectionLibrary.ShuffleList(const List: IList); +var + ListSize, I: Integer; +begin + Randomize; + ListSize := List.GetSize; + for I := 0 to ListSize - 1 do + begin + List.Exchange(I, (I + Random(ListSize - 1) + 1) mod ListSize); + end; +end; + + +end. |