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+{************[ SOURCE FILE OF FREE VISION ]****************}
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+{ }
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+{ System independent clone of objects.pas }
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+{ }
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+{ Interface Copyright (c) 1992 Borland International }
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+{ }
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+{ Parts Copyright (c) 1992,96 by Florian Klaempfl }
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+{ [email protected] }
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+{ }
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+{ Parts Copyright (c) 1996 by Frank ZAGO }
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+{ [email protected] }
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+{ }
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+{ Parts Copyright (c) 1995 by MH Spiegel }
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+{ }
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+{ Parts Copyright (c) 1996, 1997 by Leon de Boer }
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+{ [email protected] }
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+{ }
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+{ Free Vision project coordinator Balazs Scheidler }
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+{ [email protected] }
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+{ }
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+{ Download FV at ftp site }
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+{ ftp://ftp.tolna.hungary.net/pub/fpk-pascal }
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+{ }
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+{****************[ THIS CODE IS FREEWARE ]*****************}
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+{ }
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+{ This sourcecode is released for the purpose to }
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+{ promote the pascal language on all platforms. You may }
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+{ redistribute it and/or modify with the following }
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+{ DISCLAIMER. }
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+{ }
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+{ This sourcecode is distributed "AS IS" without }
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+{ warranty, express, implied or statutory, including }
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+{ but not limited to any implied warranties of any }
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+{ merchantability and fitness for a particular purpose. }
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+{ In no event shall anyone involved with the creation }
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+{ and production of this product be liable for indirect, }
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+{ special, or consequential damages, arising out of any }
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+{ use thereof or breach of any warranty. }
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+{ }
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+{**********************************************************}
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+
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+{*****************[ SUPPORTED PLATFORMS ]******************}
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+{ 16 and 32 Bit compilers }
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+{ DOS - Turbo Pascal 7.0 + (16 Bit) }
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+{ - FPK Pascal 0.92 + (32 Bit) }
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+{ DPMI - Turbo Pascal 7.0 + (16 Bit) }
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+{ WINDOWS - Turbo Pascal 7.0 + (16 Bit) }
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+{ WIN95 - Turbo Pascal 7.0 + (16 Bit) }
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+{ OS2 - Virtual Pascal 0.3 + (32 Bit) }
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+{ - C'T patch to BP (16 Bit) }
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+{ }
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+{******************[ REVISION HISTORY ]********************}
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+{ Version Date Fix }
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+{ ------- --------- --------------------------------- }
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+{ 1.00 12 Jun 96 First multi platform release }
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+{ 1.01 20 Jun 96 Fixes to TCollection }
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+{ 1.02 07 Aug 96 Fix TStringCollection.Compare }
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+{ 1.10 18 Jul 97 Windows 95 support added. }
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+{ 1.11 21 Aug 97 FPK pascal 0.92 implemented }
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+{ 1.15 26 Aug 97 TXMSStream compatability added }
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+{ TEMSStream compatability added }
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+{ 1.30 29 Aug 97 Platform.inc sort added. }
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+{ 1.32 02 Sep 97 RegisterTypes completed. }
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+{ 1.37 04 Sep 97 TStream.Get & Put completed. }
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+{ 1.40 04 Sep 97 LongMul & LongDiv added. }
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+{ 1.45 04 Sep 97 Refined and passed all tests. }
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+{ FPK - bug on register records! }
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+{ 1.50 05 May 98 Fixed DOS Access to files, one }
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+{ version for all intel platforms }
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+{ (CEC) }
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+{**********************************************************}
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+{ STLL LEFT TO DO: }
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+{ -> Port TResourceFile.Init to non-dos systems }
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+{ -> fix problem with Constant Registries }
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+{**********************************************************}
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+UNIT Objects;
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+
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+{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
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+ INTERFACE
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+{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
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+
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+{====Include file to sort compiler platform out =====================}
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+{$I Platform.inc}
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+{====================================================================}
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+
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+
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+{==== Compiler directives ===========================================}
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+{$E+} { Emulation is on }
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+{$X+} { Extended syntax is ok }
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+{$F+} { Force far calls }
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+{$A+} { Word Align Data }
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+{$R-} { Disable range checking }
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+{$S-} { Disable Stack Checking }
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+{$I-} { Disable IO Checking }
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+{$Q-} { Disable Overflow Checking }
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+{$V-} { Turn off strict VAR strings }
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+{$B-} { Allow short circuit boolean evaluations }
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+{====================================================================}
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+
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+{***************************************************************************}
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+{ PUBLIC CONSTANTS }
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+{***************************************************************************}
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+
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+{---------------------------------------------------------------------------}
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+{ STREAM ERROR STATE MASKS }
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+{---------------------------------------------------------------------------}
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+CONST
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+ stOk = 0; { No stream error }
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+ stError = -1; { Access error }
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+ stInitError = -2; { Initialize error }
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+ stReadError = -3; { Stream read error }
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+ stWriteError = -4; { Stream write error }
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+ stGetError = -5; { Get object error }
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+ stPutError = -6; { Put object error }
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+ stSeekError = -7; { Seek error in stream }
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+ stOpenError = -8; { Error opening stream }
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+
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+{---------------------------------------------------------------------------}
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+{ STREAM ACCESS MODE CONSTANTS }
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+{---------------------------------------------------------------------------}
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+CONST
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+ stCreate = $3C00; { Create new file }
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+ stOpenRead = $3D00; { Read access only }
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+ stOpenWrite = $3D01; { Write access only }
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+ stOpen = $3D02; { Read/write access }
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+
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+{---------------------------------------------------------------------------}
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+{ TCollection ERROR CODES }
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+{---------------------------------------------------------------------------}
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+CONST
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+ coIndexError = -1; { Index out of range }
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+ coOverflow = -2; { Overflow }
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+
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+{---------------------------------------------------------------------------}
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+{ VMT HEADER CONSTANT - HOPEFULLY WE CAN DROP THIS LATER }
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+{---------------------------------------------------------------------------}
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+CONST
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+ vmtHeaderSize = 8; { VMT header size }
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+
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+CONST
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+{---------------------------------------------------------------------------}
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+{ MAXIUM DATA SIZES }
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+{---------------------------------------------------------------------------}
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+{$IFDEF FPC}
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+ MaxBytes = 128*1024*1024; { Maximum data size }
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+{$ELSE}
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+ MaxBytes = 16384;
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+{$ENDIF}
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+ MaxWords = MaxBytes DIV SizeOf(Word); { Max word data size }
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+ MaxPtrs = MaxBytes DIV SizeOf(Pointer); { Max ptr data size }
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+ MaxCollectionSize = MaxBytes DIV SizeOf(Pointer); { Max collection size }
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+
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+
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+{***************************************************************************}
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+{ PUBLIC TYPE DEFINITIONS }
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+{***************************************************************************}
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+
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+{---------------------------------------------------------------------------}
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+{ CHARACTER SET }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ TCharSet = SET Of Char; { Character set }
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+ PCharSet = ^TCharSet; { Character set ptr }
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+
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+{---------------------------------------------------------------------------}
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+{ GENERAL ARRAYS }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ TByteArray = ARRAY [0..MaxBytes-1] Of Byte; { Byte array }
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+ PByteArray = ^TByteArray; { Byte array pointer }
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+
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+ TWordArray = ARRAY [0..MaxWords-1] Of Word; { Word array }
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+ PWordArray = ^TWordArray; { Word array pointer }
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+
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+ TPointerArray = Array [0..MaxPtrs-1] Of Pointer; { Pointer array }
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+ PPointerArray = ^TPointerArray; { Pointer array ptr }
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+
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+{---------------------------------------------------------------------------}
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+{ POINTER TO STRING }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ PString = ^String; { String pointer }
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+
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+{---------------------------------------------------------------------------}
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+{ DOS FILENAME STRING }
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+{---------------------------------------------------------------------------}
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+TYPE
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+{$IFDEF OS_DOS} { DOS/DPMI DEFINE }
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+ FNameStr = String[79]; { DOS filename }
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+{$ENDIF}
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+{$IFDEF OS_WINDOWS} { WINDOWS DEFINE }
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+ FNameStr = PChar; { Windows filename }
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+{$ENDIF}
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+{$IFDEF OS_OS2} { OS2 DEFINE }
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+ FNameStr = String; { OS2 filename }
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+{$ENDIF}
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+{$IFDEF OS_LINUX}
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+ FNameStr = String; { OS2 filename }
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+{$ENDIF}
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+{$IFDEF OS_AMIGA}
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+??? FNameStr = PChar;
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+{$ENDIF}
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+{$IFDEF OS_ATARI}
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+ FNameStr = String[79]; { DOS filename }
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+{$ENDIF}
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+{$IFDEF OS_MAC}
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+???
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+{$ENDIF}
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+
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+{---------------------------------------------------------------------------}
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+{ HANDLE SIZE }
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+{---------------------------------------------------------------------------}
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+
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+{$IFDEF OS_DOS}
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+ THandle = Integer;
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+{$ENDIF}
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+{$IFDEF OS_LINUX}
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+ { values are words, though the OS calls return 32-bit values }
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+ { to check (CEC) }
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+ THandle = Longint;
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+{$ENDIF}
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+{$IFDEF OS_AMIGA}
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+ THandle = Longint;
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+{$ENDIF}
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+{$IFDEF OS_WINDOWS}
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+ THandle = Longint;
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+{$ENDIF}
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+{$IFDEF OS_OS2}
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+ ???????
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+{$ENDIF}
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+{$IFDEF OS_MAC}
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+ ???????
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+{$ENDIF}
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+
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+
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+{---------------------------------------------------------------------------}
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+{ DOS ASCIIZ FILENAME }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ AsciiZ = Array [0..255] Of Char; { Filename array }
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+
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+{---------------------------------------------------------------------------}
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+{ BIT SWITCHED TYPE CONSTANTS }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ Sw_Word = LongInt; { Long integer now }
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+ Sw_Integer = LongInt; { Long integer now }
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+
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+{---------------------------------------------------------------------------}
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+{ FUNCTION POINTER DEFINED }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ FuncPtr = FUNCTION (Item: Pointer; _EBP: Sw_Word): Boolean;
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+
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+{---------------------------------------------------------------------------}
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+{ PROCEDURE POINTER DEFINED }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ ProcPtr = PROCEDURE (Item: Pointer; _EBP: Sw_Word);
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+
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+{***************************************************************************}
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+{ PUBLIC RECORD DEFINITIONS }
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+{***************************************************************************}
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+
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+{---------------------------------------------------------------------------}
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+{ TYPE CONVERSION RECORDS }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ WordRec = RECORD
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+ Lo, Hi: Byte; { Word to bytes }
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+ END;
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+
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+ LongRec = RECORD
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+ Lo, Hi: Word; { LongInt to words }
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+ END;
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+
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+ PtrRec = RECORD
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+ Ofs, Seg: Word; { Pointer to words }
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+ END;
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+
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+{---------------------------------------------------------------------------}
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+{ TStreamRec RECORD - STREAM OBJECT RECORD }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ PStreamRec = ^TStreamRec; { Stream record ptr }
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+ TStreamRec = RECORD
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+ ObjType: Sw_Word; { Object type id }
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+ VmtLink: Sw_Word; { VMT link }
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+ Load : Pointer; { Object load code }
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+ Store: Pointer; { Object store code }
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+ Next : PStreamRec; { Next stream record }
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+ END;
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+
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+{***************************************************************************}
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+{ PUBLIC OBJECT DEFINITIONS }
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+{***************************************************************************}
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+
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+{---------------------------------------------------------------------------}
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+{ TPoint OBJECT - POINT OBJECT }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ TPoint = OBJECT
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+ X, Y: Integer;
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+ END;
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+
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+{---------------------------------------------------------------------------}
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+{ TRect OBJECT - RECTANGLE OBJECT }
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+{---------------------------------------------------------------------------}
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+ TRect = OBJECT
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+ A, B: TPoint; { Corner points }
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+ FUNCTION Empty: Boolean;
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+ FUNCTION Equals (R: TRect): Boolean;
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+ FUNCTION Contains (P: TPoint): Boolean;
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+ PROCEDURE Copy (R: TRect);
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+ PROCEDURE Union (R: TRect);
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+ PROCEDURE Intersect (R: TRect);
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+ PROCEDURE Move (ADX, ADY: Integer);
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+ PROCEDURE Grow (ADX, ADY: Integer);
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+ PROCEDURE Assign (XA, YA, XB, YB: Integer);
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+ END;
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+
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+{---------------------------------------------------------------------------}
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+{ TObject OBJECT - BASE ANCESTOR OBJECT }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ TObject = OBJECT
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+ CONSTRUCTOR Init;
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+ PROCEDURE Free;
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+ DESTRUCTOR Done; Virtual;
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+ END;
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+ PObject = ^TObject;
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+
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+{ ******************************* REMARK ****************************** }
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+{ Two new virtual methods have been added to the object in the form of }
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+{ Close and Open. The main use here is in the Disk Based Descendants }
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+{ the calls open and close the given file so these objects can be }
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+{ used like standard files. Two new fields have also been added to }
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+{ speed up seeks on descendants. All existing code will compile and }
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+{ work completely normally oblivious to these new methods and fields. }
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+{ ****************************** END REMARK *** Leon de Boer, 15May96 * }
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+
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+{---------------------------------------------------------------------------}
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+{ TStream OBJECT - STREAM ANCESTOR OBJECT }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ TStream = OBJECT (TObject)
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+ Status : Integer; { Stream status }
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+ ErrorInfo : Integer; { Stream error info }
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+ StreamSize: LongInt; { Stream current size }
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+ Position : LongInt; { Current position }
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+ FUNCTION Get: PObject;
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+ FUNCTION StrRead: PChar;
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+ FUNCTION GetPos: Longint; Virtual;
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+ FUNCTION GetSize: Longint; Virtual;
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+ FUNCTION ReadStr: PString;
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+ PROCEDURE Open (OpenMode: Word); Virtual;
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+ PROCEDURE Close; Virtual;
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+ PROCEDURE Reset;
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+ PROCEDURE Flush; Virtual;
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+ PROCEDURE Truncate; Virtual;
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+ PROCEDURE Put (P: PObject);
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+ PROCEDURE StrWrite (P: PChar);
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+ PROCEDURE WriteStr (P: PString);
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+ PROCEDURE Seek (Pos: LongInt); Virtual;
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+ PROCEDURE Error (Code, Info: Integer); Virtual;
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+ PROCEDURE Read (Var Buf; Count: Sw_Word); Virtual;
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+ PROCEDURE Write (Var Buf; Count: Sw_Word); Virtual;
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+ PROCEDURE CopyFrom (Var S: TStream; Count: Longint);
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+ END;
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+ PStream = ^TStream;
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+
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+{ ******************************* REMARK ****************************** }
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+{ A few minor changes to this object and an extra field added called }
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+{ FName which holds an AsciiZ array of the filename this allows the }
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+{ streams file to be opened and closed like a normal text file. All }
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+{ existing code should work without any changes. }
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+{ ****************************** END REMARK *** Leon de Boer, 19May96 * }
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+
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+{---------------------------------------------------------------------------}
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+{ TDosStream OBJECT - DOS FILE STREAM OBJECT }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ TDosStream = OBJECT (TStream)
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+ Handle: THandle; { DOS file handle }
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+ FName : AsciiZ; { AsciiZ filename }
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+ CONSTRUCTOR Init (FileName: FNameStr; Mode: Word);
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+ DESTRUCTOR Done; Virtual;
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+ PROCEDURE Close; Virtual;
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+ PROCEDURE Truncate; Virtual;
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+ PROCEDURE Seek (Pos: LongInt); Virtual;
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+ PROCEDURE Open (OpenMode: Word); Virtual;
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+ PROCEDURE Read (Var Buf; Count: Sw_Word); Virtual;
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+ PROCEDURE Write (Var Buf; Count: Sw_Word); Virtual;
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+ END;
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+ PDosStream = ^TDosStream;
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+
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+{ ******************************* REMARK ****************************** }
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+{ A few minor changes to this object and an extra field added called }
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+{ lastmode which holds the read or write condition last using the }
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+{ speed up buffer which helps speed up the flush, position and size }
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+{ functions. All existing code should work without any changes. }
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+{ ****************************** END REMARK *** Leon de Boer, 19May96 * }
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+
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+{---------------------------------------------------------------------------}
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+{ TBufStream OBJECT - BUFFERED DOS FILE STREAM }
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+{---------------------------------------------------------------------------}
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+TYPE
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+ TBufStream = OBJECT (TDosStream)
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+ LastMode: Byte; { Last buffer mode }
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|
|
+ BufSize : Sw_Word; { Buffer size }
|
|
|
+ BufPtr : Sw_Word; { Buffer start }
|
|
|
+ BufEnd : Sw_Word; { Buffer end }
|
|
|
+ Buffer : PByteArray; { Buffer allocated }
|
|
|
+ CONSTRUCTOR Init (FileName: FNameStr; Mode, Size: Word);
|
|
|
+ DESTRUCTOR Done; Virtual;
|
|
|
+ PROCEDURE Close; Virtual;
|
|
|
+ PROCEDURE Flush; Virtual;
|
|
|
+ PROCEDURE Truncate; Virtual;
|
|
|
+ PROCEDURE Seek (Pos: LongInt); Virtual;
|
|
|
+ PROCEDURE Open (OpenMode: Word); Virtual;
|
|
|
+ PROCEDURE Read (Var Buf; Count: Sw_Word); Virtual;
|
|
|
+ PROCEDURE Write (Var Buf; Count: Sw_Word); Virtual;
|
|
|
+ END;
|
|
|
+ PBufStream = ^TBufStream;
|
|
|
+
|
|
|
+{ ******************************* REMARK ****************************** }
|
|
|
+{ All the changes here should be completely transparent to existing }
|
|
|
+{ code. Basically the memory blocks do not have to be base segments }
|
|
|
+{ but this means our list becomes memory blocks rather than segments. }
|
|
|
+{ The stream will also expand like the other standard streams!! }
|
|
|
+{ ****************************** END REMARK *** Leon de Boer, 19May96 * }
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ TMemoryStream OBJECT - MEMORY STREAM OBJECT }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+TYPE
|
|
|
+ TMemoryStream = OBJECT (TStream)
|
|
|
+ BlkCount: Sw_Word; { Number of segments }
|
|
|
+ BlkSize : Word; { Memory block size }
|
|
|
+ MemSize : LongInt; { Memory alloc size }
|
|
|
+ BlkList : PPointerArray; { Memory block list }
|
|
|
+ CONSTRUCTOR Init (ALimit: Longint; ABlockSize: Word);
|
|
|
+ DESTRUCTOR Done; Virtual;
|
|
|
+ PROCEDURE Truncate; Virtual;
|
|
|
+ PROCEDURE Read (Var Buf; Count: Sw_Word); Virtual;
|
|
|
+ PROCEDURE Write (Var Buf; Count: Sw_Word); Virtual;
|
|
|
+ PRIVATE
|
|
|
+ FUNCTION ChangeListSize (ALimit: Sw_Word): Boolean;
|
|
|
+ END;
|
|
|
+ PMemoryStream = ^TMemoryStream;
|
|
|
+
|
|
|
+
|
|
|
+TYPE
|
|
|
+ TItemList = Array [0..MaxCollectionSize - 1] Of Pointer;
|
|
|
+ PItemList = ^TItemList;
|
|
|
+
|
|
|
+{ ******************************* REMARK ****************************** }
|
|
|
+{ The changes here look worse than they are. The Sw_Integer simply }
|
|
|
+{ switches between Integers and LongInts if switched between 16 and 32 }
|
|
|
+{ bit code. All existing code will compile without any changes. }
|
|
|
+{ ****************************** END REMARK *** Leon de Boer, 10May96 * }
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ TCollection OBJECT - COLLECTION ANCESTOR OBJECT }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+ TCollection = OBJECT (TObject)
|
|
|
+ Items: PItemList; { Item list pointer }
|
|
|
+ Count: Sw_Integer; { Item count }
|
|
|
+ Limit: Sw_Integer; { Item limit count }
|
|
|
+ Delta: Sw_Integer; { Inc delta size }
|
|
|
+ CONSTRUCTOR Init (ALimit, ADelta: Sw_Integer);
|
|
|
+ CONSTRUCTOR Load (Var S: TStream);
|
|
|
+ DESTRUCTOR Done; Virtual;
|
|
|
+ FUNCTION At (Index: Sw_Integer): Pointer;
|
|
|
+ FUNCTION IndexOf (Item: Pointer): Sw_Integer; Virtual;
|
|
|
+ FUNCTION GetItem (Var S: TStream): Pointer; Virtual;
|
|
|
+ FUNCTION LastThat (Test: Pointer): Pointer;
|
|
|
+ FUNCTION FirstThat (Test: Pointer): Pointer;
|
|
|
+ PROCEDURE Pack;
|
|
|
+ PROCEDURE FreeAll;
|
|
|
+ PROCEDURE DeleteAll;
|
|
|
+ PROCEDURE Free (Item: Pointer);
|
|
|
+ PROCEDURE Insert (Item: Pointer); Virtual;
|
|
|
+ PROCEDURE Delete (Item: Pointer);
|
|
|
+ PROCEDURE AtFree (Index: Sw_Integer);
|
|
|
+ PROCEDURE FreeItem (Item: Pointer); Virtual;
|
|
|
+ PROCEDURE AtDelete (Index: Sw_Integer);
|
|
|
+ PROCEDURE ForEach (Action: Pointer);
|
|
|
+ PROCEDURE SetLimit (ALimit: Sw_Integer); Virtual;
|
|
|
+ PROCEDURE Error (Code, Info: Integer); Virtual;
|
|
|
+ PROCEDURE AtPut (Index: Sw_Integer; Item: Pointer);
|
|
|
+ PROCEDURE AtInsert (Index: Sw_Integer; Item: Pointer);
|
|
|
+ PROCEDURE Store (Var S: TStream);
|
|
|
+ PROCEDURE PutItem (Var S: TStream; Item: Pointer); Virtual;
|
|
|
+ END;
|
|
|
+ PCollection = ^TCollection;
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ TSortedCollection OBJECT - SORTED COLLECTION ANCESTOR }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+TYPE
|
|
|
+ TSortedCollection = OBJECT (TCollection)
|
|
|
+ Duplicates: Boolean; { Duplicates flag }
|
|
|
+ CONSTRUCTOR Init (ALimit, ADelta: Sw_Integer);
|
|
|
+ CONSTRUCTOR Load (Var S: TStream);
|
|
|
+ FUNCTION KeyOf (Item: Pointer): Pointer; Virtual;
|
|
|
+ FUNCTION IndexOf (Item: Pointer): Sw_Integer; Virtual;
|
|
|
+ FUNCTION Compare (Key1, Key2: Pointer): Sw_Integer; Virtual;
|
|
|
+ FUNCTION Search (Key: Pointer; Var Index: Sw_Integer): Boolean;Virtual;
|
|
|
+ PROCEDURE Insert (Item: Pointer); Virtual;
|
|
|
+ PROCEDURE Store (Var S: TStream);
|
|
|
+ END;
|
|
|
+ PSortedCollection = ^TSortedCollection;
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ TStringCollection OBJECT - STRING COLLECTION OBJECT }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+TYPE
|
|
|
+ TStringCollection = OBJECT (TSortedCollection)
|
|
|
+ FUNCTION GetItem (Var S: TStream): Pointer; Virtual;
|
|
|
+ FUNCTION Compare (Key1, Key2: Pointer): Sw_Integer; Virtual;
|
|
|
+ PROCEDURE FreeItem (Item: Pointer); Virtual;
|
|
|
+ PROCEDURE PutItem (Var S: TStream; Item: Pointer); Virtual;
|
|
|
+ END;
|
|
|
+ PStringCollection = ^TStringCollection;
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ TStrCollection OBJECT - STRING COLLECTION OBJECT }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+TYPE
|
|
|
+ TStrCollection = OBJECT (TSortedCollection)
|
|
|
+ FUNCTION Compare (Key1, Key2: Pointer): Sw_Integer; Virtual;
|
|
|
+ FUNCTION GetItem (Var S: TStream): Pointer; Virtual;
|
|
|
+ PROCEDURE FreeItem (Item: Pointer); Virtual;
|
|
|
+ PROCEDURE PutItem (Var S: TStream; Item: Pointer); Virtual;
|
|
|
+ END;
|
|
|
+ PStrCollection = ^TStrCollection;
|
|
|
+
|
|
|
+{ ******************************* REMARK ****************************** }
|
|
|
+{ This is a completely >> NEW << object which holds a collection of }
|
|
|
+{ strings but does not alphabetically sort them. It is a very useful }
|
|
|
+{ object for insert ordered list boxes! }
|
|
|
+{ ****************************** END REMARK *** Leon de Boer, 15May96 * }
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ TUnSortedStrCollection - UNSORTED STRING COLLECTION OBJECT }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+TYPE
|
|
|
+ TUnSortedStrCollection = OBJECT (TStringCollection)
|
|
|
+ PROCEDURE Insert (Item: Pointer); Virtual;
|
|
|
+ END;
|
|
|
+ PUnSortedStrCollection = ^TUnSortedStrCollection;
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ TResourceCollection OBJECT - RESOURCE COLLECTION OBJECT }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+TYPE
|
|
|
+ TResourceCollection = OBJECT (TStringCollection)
|
|
|
+ FUNCTION KeyOf (Item: Pointer): Pointer; Virtual;
|
|
|
+ FUNCTION GetItem (Var S: TStream): Pointer; Virtual;
|
|
|
+ PROCEDURE FreeItem (Item: Pointer); Virtual;
|
|
|
+ PROCEDURE PutItem (Var S: TStream; Item: Pointer); Virtual;
|
|
|
+ END;
|
|
|
+ PResourceCollection = ^TResourceCollection;
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ TResourceFile OBJECT - RESOURCE FILE OBJECT }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+TYPE
|
|
|
+ TResourceFile = OBJECT (TObject)
|
|
|
+ Stream : PStream; { File as a stream }
|
|
|
+ Modified: Boolean; { Modified flag }
|
|
|
+ CONSTRUCTOR Init (AStream: PStream);
|
|
|
+ DESTRUCTOR Done; Virtual;
|
|
|
+ FUNCTION Count: Sw_Integer;
|
|
|
+ FUNCTION KeyAt (I: Sw_Integer): String;
|
|
|
+ FUNCTION Get (Key: String): PObject;
|
|
|
+ FUNCTION SwitchTo (AStream: PStream; Pack: Boolean): PStream;
|
|
|
+ PROCEDURE Flush;
|
|
|
+ PROCEDURE Delete (Key: String);
|
|
|
+ PROCEDURE Put (Item: PObject; Key: String);
|
|
|
+ PRIVATE
|
|
|
+ BasePos: LongInt; { Base position }
|
|
|
+ IndexPos: LongInt; { Index position }
|
|
|
+ Index: TResourceCollection; { Index collection }
|
|
|
+ END;
|
|
|
+ PResourceFile = ^TResourceFile;
|
|
|
+
|
|
|
+TYPE
|
|
|
+ TStrIndexRec = RECORD Key, Count, Offset: Word; END;
|
|
|
+
|
|
|
+ TStrIndex = Array [0..9999] Of TStrIndexRec;
|
|
|
+ PStrIndex = ^TStrIndex;
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ TStringList OBJECT - STRING LIST OBJECT }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+ TStringList = OBJECT (TObject)
|
|
|
+ CONSTRUCTOR Load (Var S: TStream);
|
|
|
+ DESTRUCTOR Done; Virtual;
|
|
|
+ FUNCTION Get (Key: Sw_Word): String;
|
|
|
+ PRIVATE
|
|
|
+ Stream : PStream;
|
|
|
+ BasePos : Longint;
|
|
|
+ IndexSize: Sw_Word;
|
|
|
+ Index : PStrIndex;
|
|
|
+ PROCEDURE ReadStr (Var S: String; Offset, Skip: Sw_Word);
|
|
|
+ END;
|
|
|
+ PStringList = ^TStringList;
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ TStrListMaker OBJECT - RESOURCE FILE OBJECT }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+TYPE
|
|
|
+ TStrListMaker = OBJECT (TObject)
|
|
|
+ CONSTRUCTOR Init (AStrSize, AIndexSize: Sw_Word);
|
|
|
+ DESTRUCTOR Done; Virtual;
|
|
|
+ PROCEDURE Put (Key: Sw_Word; S: String);
|
|
|
+ PROCEDURE Store (Var S: TStream);
|
|
|
+ PRIVATE
|
|
|
+ StrPos : Sw_Word;
|
|
|
+ StrSize : Sw_Word;
|
|
|
+ Strings : PByteArray;
|
|
|
+ IndexPos : Sw_Word;
|
|
|
+ IndexSize: Sw_Word;
|
|
|
+ Index : PStrIndex;
|
|
|
+ Cur : TStrIndexRec;
|
|
|
+ PROCEDURE CloseCurrent;
|
|
|
+ END;
|
|
|
+ PStrListMaker = ^TStrListMaker;
|
|
|
+
|
|
|
+{***************************************************************************}
|
|
|
+{ INTERFACE ROUTINES }
|
|
|
+{***************************************************************************}
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ DYNAMIC STRING INTERFACE ROUTINES }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{-NewStr-------------------------------------------------------------
|
|
|
+Allocates a dynamic string into memory. If S is nil, NewStr returns
|
|
|
+a nil pointer, otherwise NewStr allocates Length(S)+1 bytes of memory
|
|
|
+containing a copy of S, and returns a pointer to the string.
|
|
|
+12Jun96 LdB
|
|
|
+---------------------------------------------------------------------}
|
|
|
+FUNCTION NewStr (Const S: String): PString;
|
|
|
+
|
|
|
+{-DisposeStr---------------------------------------------------------
|
|
|
+Disposes of a PString allocated by the function NewStr.
|
|
|
+12Jun96 LdB
|
|
|
+---------------------------------------------------------------------}
|
|
|
+PROCEDURE DisposeStr (P: PString);
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ STREAM INTERFACE ROUTINES }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{-Abstract-----------------------------------------------------------
|
|
|
+Terminates program with a run-time error 211. When implementing
|
|
|
+an abstract object type, call Abstract in those virtual methods that
|
|
|
+must be overridden in descendant types. This ensures that any
|
|
|
+attempt to use instances of the abstract object type will fail.
|
|
|
+12Jun96 LdB
|
|
|
+---------------------------------------------------------------------}
|
|
|
+PROCEDURE Abstract;
|
|
|
+
|
|
|
+{-RegisterObjects----------------------------------------------------
|
|
|
+Registers the three standard objects TCollection, TStringCollection
|
|
|
+and TStrCollection.
|
|
|
+02Sep97 LdB
|
|
|
+---------------------------------------------------------------------}
|
|
|
+PROCEDURE RegisterObjects;
|
|
|
+
|
|
|
+{-RegisterType-------------------------------------------------------
|
|
|
+Registers the given object type with Free Vision's streams, creating
|
|
|
+a list of known objects. Streams can only store and return these known
|
|
|
+object types. Each registered object needs a unique stream registration
|
|
|
+record, of type TStreamRec.
|
|
|
+02Sep97 LdB
|
|
|
+---------------------------------------------------------------------}
|
|
|
+PROCEDURE RegisterType (Var S: TStreamRec);
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ GENERAL FUNCTION INTERFACE ROUTINES }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{-LongMul------------------------------------------------------------
|
|
|
+Returns the long integer value of X * Y integer values.
|
|
|
+04Sep97 LdB
|
|
|
+---------------------------------------------------------------------}
|
|
|
+FUNCTION LongMul (X, Y: Integer): LongInt;
|
|
|
+
|
|
|
+{-LongDiv------------------------------------------------------------
|
|
|
+Returns the integer value of long integer X divided by integer Y.
|
|
|
+04Sep97 LdB
|
|
|
+---------------------------------------------------------------------}
|
|
|
+FUNCTION LongDiv (X: Longint; Y: Integer): Integer;
|
|
|
+
|
|
|
+
|
|
|
+{***************************************************************************}
|
|
|
+{ PUBLIC INITIALIZED VARIABLES }
|
|
|
+{***************************************************************************}
|
|
|
+
|
|
|
+
|
|
|
+CONST
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ INITIALIZED DOS/DPMI/WIN/OS2 PUBLIC VARIABLES }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+ StreamError: Pointer = Nil; { Stream error ptr }
|
|
|
+ DosStreamError: Word = $0; { Dos stream error }
|
|
|
+
|
|
|
+{ ******************************* REMARK ****************************** }
|
|
|
+{ FPK 0.92 compiler wont handle this section OFS seems not to be a }
|
|
|
+{ defined function which we need -> Function Ofs(X): LongInt; So for }
|
|
|
+{ now we must exclude these and in the RegisterObjects code. }
|
|
|
+{ ****************************** END REMARK *** Leon de Boer, 04Sep97 * }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ STREAM REGISTRATION RECORDS }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+(*
|
|
|
+CONST
|
|
|
+ RCollection: TStreamRec = (
|
|
|
+ ObjType: 50;
|
|
|
+ VmtLink: Ofs(TypeOf(TCollection)^);
|
|
|
+ Load: @TCollection.Load;
|
|
|
+ Store: @TCollection.Store);
|
|
|
+
|
|
|
+CONST
|
|
|
+ RStringCollection: TStreamRec = (
|
|
|
+ ObjType: 51;
|
|
|
+ VmtLink: Ofs(TypeOf(TStringCollection)^);
|
|
|
+ Load: @TStringCollection.Load;
|
|
|
+ Store: @TStringCollection.Store);
|
|
|
+
|
|
|
+CONST
|
|
|
+ RStrCollection: TStreamRec = (
|
|
|
+ ObjType: 69;
|
|
|
+ VmtLink: Ofs(TypeOf(TStrCollection)^);
|
|
|
+ Load: @TStrCollection.Load;
|
|
|
+ Store: @TStrCollection.Store);
|
|
|
+
|
|
|
+CONST
|
|
|
+ RStringList: TStreamRec = (
|
|
|
+ ObjType: 52;
|
|
|
+ VmtLink: Ofs(TypeOf(TStringList)^);
|
|
|
+ Load: @TStringList.Load;
|
|
|
+ Store: Nil);
|
|
|
+
|
|
|
+CONST
|
|
|
+ RStrListMaker: TStreamRec = (
|
|
|
+ ObjType: 52;
|
|
|
+ VmtLink: Ofs(TypeOf(TStrListMaker)^);
|
|
|
+ Load: Nil;
|
|
|
+ Store: @TStrListMaker.Store);
|
|
|
+*)
|
|
|
+{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
|
|
|
+ IMPLEMENTATION
|
|
|
+{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
|
|
|
+
|
|
|
+
|
|
|
+{***************************************************************************}
|
|
|
+{ PRIVATE INITIALIZED VARIABLES }
|
|
|
+{***************************************************************************}
|
|
|
+
|
|
|
+{$IFDEF OS_DOS} { DOS CODE }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ INITIALIZED DOS PRIVATE VARIABLES }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONST
|
|
|
+ InitRun: Boolean = False; { Init check run }
|
|
|
+ Win95 : Boolean = False; { If Win 95 active }
|
|
|
+{$ENDIF}
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ INITIALIZED DOS/DPMI/WIN/OS2 PRIVATE VARIABLES }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONST
|
|
|
+ StreamTypes: PStreamRec = Nil; { Stream types reg }
|
|
|
+
|
|
|
+{***************************************************************************}
|
|
|
+{ PRIVATE INTERNAL ROUTINES }
|
|
|
+{***************************************************************************}
|
|
|
+
|
|
|
+{$I objinc.inc}
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ RegisterError -> Platforms DOS/DPMI/WINDOWS/OS2 - Checked 12Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE RegisterError;
|
|
|
+BEGIN
|
|
|
+ RunError(212); { Register error }
|
|
|
+END;
|
|
|
+
|
|
|
+
|
|
|
+{***************************************************************************}
|
|
|
+{ OBJECT METHODS }
|
|
|
+{***************************************************************************}
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TRect OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+PROCEDURE CheckEmpty (Var Rect: TRect);
|
|
|
+BEGIN
|
|
|
+ With Rect Do Begin
|
|
|
+ If (A.X >= B.X) OR (A.Y >= B.Y) Then Begin { Zero or reversed }
|
|
|
+ A.X := 0; { Clear a.x }
|
|
|
+ A.Y := 0; { Clear a.y }
|
|
|
+ B.X := 0; { Clear b.x }
|
|
|
+ B.Y := 0; { Clear b.y }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TRect--------------------------------------------------------------------}
|
|
|
+{ Empty -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TRect.Empty: Boolean;
|
|
|
+BEGIN
|
|
|
+ Empty := (A.X >= B.X) OR (A.Y >= B.Y); { Empty result }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TRect--------------------------------------------------------------------}
|
|
|
+{ Equals -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TRect.Equals (R: TRect): Boolean;
|
|
|
+BEGIN
|
|
|
+ Equals := (A.X = R.A.X) AND (A.Y = R.A.Y) AND
|
|
|
+ (B.X = R.B.X) AND (B.Y = R.B.Y); { Equals result }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TRect--------------------------------------------------------------------}
|
|
|
+{ Contains -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TRect.Contains (P: TPoint): Boolean;
|
|
|
+BEGIN
|
|
|
+ Contains := (P.X >= A.X) AND (P.X < B.X) AND
|
|
|
+ (P.Y >= A.Y) AND (P.Y < B.Y); { Contains result }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TRect--------------------------------------------------------------------}
|
|
|
+{ Copy -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TRect.Copy (R: TRect);
|
|
|
+BEGIN
|
|
|
+ A := R.A; { Copy point a }
|
|
|
+ B := R.B; { Copy point b }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TRect--------------------------------------------------------------------}
|
|
|
+{ Union -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TRect.Union (R: TRect);
|
|
|
+BEGIN
|
|
|
+ If (R.A.X < A.X) Then A.X := R.A.X; { Take if smaller }
|
|
|
+ If (R.A.Y < A.Y) Then A.Y := R.A.Y; { Take if smaller }
|
|
|
+ If (R.B.X > B.X) Then B.X := R.B.X; { Take if larger }
|
|
|
+ If (R.B.Y > B.Y) Then B.Y := R.B.Y; { Take if larger }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TRect--------------------------------------------------------------------}
|
|
|
+{ Intersect -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TRect.Intersect (R: TRect);
|
|
|
+BEGIN
|
|
|
+ If (R.A.X > A.X) Then A.X := R.A.X; { Take if larger }
|
|
|
+ If (R.A.Y > A.Y) Then A.Y := R.A.Y; { Take if larger }
|
|
|
+ If (R.B.X < B.X) Then B.X := R.B.X; { Take if smaller }
|
|
|
+ If (R.B.Y < B.Y) Then B.Y := R.B.Y; { Take if smaller }
|
|
|
+ CheckEmpty(Self); { Check if empty }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TRect--------------------------------------------------------------------}
|
|
|
+{ Move -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TRect.Move (ADX, ADY: Integer);
|
|
|
+BEGIN
|
|
|
+ Inc(A.X, ADX); { Adjust A.X }
|
|
|
+ Inc(A.Y, ADY); { Adjust A.Y }
|
|
|
+ Inc(B.X, ADX); { Adjust B.X }
|
|
|
+ Inc(B.Y, ADY); { Adjust B.Y }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TRect--------------------------------------------------------------------}
|
|
|
+{ Grow -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TRect.Grow (ADX, ADY: Integer);
|
|
|
+BEGIN
|
|
|
+ Dec(A.X, ADX); { Adjust A.X }
|
|
|
+ Dec(A.Y, ADY); { Adjust A.Y }
|
|
|
+ Inc(B.X, ADX); { Adjust B.X }
|
|
|
+ Inc(B.Y, ADY); { Adjust B.Y }
|
|
|
+ CheckEmpty(Self); { Check if empty }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TRect--------------------------------------------------------------------}
|
|
|
+{ Assign -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TRect.Assign (XA, YA, XB, YB: Integer);
|
|
|
+BEGIN
|
|
|
+ A.X := XA; { Hold A.X value }
|
|
|
+ A.Y := YA; { Hold A.Y value }
|
|
|
+ B.X := XB; { Hold B.X value }
|
|
|
+ B.Y := YB; { Hold B.Y value }
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TObject OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+TYPE
|
|
|
+ DummyObject = OBJECT (TObject) { Internal object }
|
|
|
+ Data: RECORD END; { Helps size VMT link }
|
|
|
+ END;
|
|
|
+
|
|
|
+{ ******************************* REMARK ****************************** }
|
|
|
+{ I Prefer this code because it self sizes VMT link rather than using a }
|
|
|
+{ fixed record structure thus it should work on all compilers without a }
|
|
|
+{ specific record to match each compiler. }
|
|
|
+{ ****************************** END REMARK *** Leon de Boer, 10May96 * }
|
|
|
+
|
|
|
+{--TObject------------------------------------------------------------------}
|
|
|
+{ Init -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TObject.Init;
|
|
|
+VAR LinkSize: LongInt; Dummy: DummyObject;
|
|
|
+BEGIN
|
|
|
+ LinkSize := LongInt(@Dummy.Data)-LongInt(@Dummy); { Calc VMT link size }
|
|
|
+ FillChar(Pointer(LongInt(@Self)+LinkSize)^,
|
|
|
+ SizeOf(Self)-LinkSize, #0); { Clear data fields }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TObject------------------------------------------------------------------}
|
|
|
+{ Free -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TObject.Free;
|
|
|
+BEGIN
|
|
|
+ Dispose(PObject(@Self), Done); { Dispose of self }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TObject------------------------------------------------------------------}
|
|
|
+{ Done -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+DESTRUCTOR TObject.Done;
|
|
|
+BEGIN { Abstract method }
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TStream OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Get -> Platforms DOS/DPMI/WIN/OS2 - Checked 02Sep97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TStream.Get: PObject;
|
|
|
+
|
|
|
+TYPE LoadPtr = FUNCTION (Var S: TStream; Link: Sw_Word; Iv: Pointer): PObject;
|
|
|
+
|
|
|
+VAR ObjType: Sw_Word; P: PStreamRec;
|
|
|
+BEGIN
|
|
|
+ Read(ObjType, SizeOf(ObjType)); { Read object type }
|
|
|
+ If (ObjType<>0) Then Begin { Object registered }
|
|
|
+ P := StreamTypes; { Current reg list }
|
|
|
+ While (P <> Nil) AND (P^.ObjType <> ObjType) { Find object type OR }
|
|
|
+ Do P := P^.Next; { Find end of chain }
|
|
|
+ If (P=Nil) Then Begin { Not registered }
|
|
|
+ Error(stGetError, ObjType); { Obj not registered }
|
|
|
+ Get := Nil; { Return nil pointer }
|
|
|
+ End Else Get := LoadPtr(P^.Load)(Self,
|
|
|
+ P^.VMTLink, Nil) { Call constructor }
|
|
|
+ End Else Get := Nil; { Return nil pointer }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ StrRead -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TStream.StrRead: PChar;
|
|
|
+VAR L: Word; P: PChar;
|
|
|
+BEGIN
|
|
|
+ Read(L, SizeOf(L)); { Read length }
|
|
|
+ If (L = 0) Then StrRead := Nil Else Begin { Check for empty }
|
|
|
+ GetMem(P, L + 1); { Allocate memory }
|
|
|
+ If (P <> Nil) Then Begin { Check allocate okay }
|
|
|
+ Read(P[0], L); { Read the data }
|
|
|
+ P[L] := #0; { Terminate with #0 }
|
|
|
+ End;
|
|
|
+ StrRead := P; { Return PChar }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ ReadStr -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TStream.ReadStr: PString;
|
|
|
+VAR L: Byte; P: PString;
|
|
|
+BEGIN
|
|
|
+ Read(L, 1); { Read string length }
|
|
|
+ If (L > 0) Then Begin
|
|
|
+ GetMem(P, L + 1); { Allocate memory }
|
|
|
+ If (P <> Nil) Then Begin { Check allocate okay }
|
|
|
+ P^[0] := Char(L); { Hold length }
|
|
|
+ Read(P^[1], L); { Read string data }
|
|
|
+ End;
|
|
|
+ ReadStr := P; { Return string ptr }
|
|
|
+ End Else ReadStr := Nil;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ GetPos -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TStream.GetPos: LongInt;
|
|
|
+BEGIN
|
|
|
+ If (Status=stOk) Then GetPos := Position { Return position }
|
|
|
+ Else GetPos := -1; { Stream in error }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ GetSize -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TStream.GetSize: LongInt;
|
|
|
+BEGIN
|
|
|
+ If (Status=stOk) Then GetSize := StreamSize { Return stream size }
|
|
|
+ Else GetSize := -1; { Stream in error }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Close -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.Close;
|
|
|
+BEGIN { Abstract method }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Reset -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.Reset;
|
|
|
+BEGIN
|
|
|
+ Status := 0; { Clear status }
|
|
|
+ ErrorInfo := 0; { Clear error info }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Flush -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.Flush;
|
|
|
+BEGIN { Abstract method }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Truncate -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.Truncate;
|
|
|
+BEGIN
|
|
|
+ Abstract; { Abstract error }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Get -> Platforms DOS/DPMI/WIN/OS2 - Checked 02Sep97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.Put (P: PObject);
|
|
|
+TYPE StorePtr = PROCEDURE (Var S: TStream; AnObject: PObject);
|
|
|
+
|
|
|
+VAR ObjType: Sw_Word; Link: Sw_Word; Q: PStreamRec; VmtPtr: ^Sw_Word;
|
|
|
+BEGIN
|
|
|
+ VmtPtr := Pointer(P); { Xfer object to ptr }
|
|
|
+ Link := VmtPtr^; { VMT link }
|
|
|
+ ObjType := 0; { Set objtype to zero }
|
|
|
+ If (P<>Nil) AND (Link<>0) Then Begin { We have a VMT link }
|
|
|
+ Q := StreamTypes; { Current reg list }
|
|
|
+ While (Q <> Nil) AND (Q^.VMTLink <> Link) { Find link match OR }
|
|
|
+ Do Q := Q^.Next; { Find end of chain }
|
|
|
+ If (Q=Nil) Then Begin { End of chain found }
|
|
|
+ Error(stPutError, 0); { Not registered error }
|
|
|
+ Exit; { Now exit }
|
|
|
+ End Else ObjType := Q^.ObjType; { Update object type }
|
|
|
+ End;
|
|
|
+ Write(ObjType, SizeOf(ObjType)); { Write object type }
|
|
|
+ If (ObjType<>0) Then { Registered object }
|
|
|
+ StorePtr(Q^.Store)(Self, P); { Store object }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Seek -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.Seek (Pos: LongInt);
|
|
|
+BEGIN
|
|
|
+ If (Status = stOk) Then Begin { Check status }
|
|
|
+ If (Pos < 0) Then Pos := 0; { Remove negatives }
|
|
|
+ If (Pos <= StreamSize) Then Position := Pos { If valid set pos }
|
|
|
+ Else Error(stSeekError, Pos); { Position error }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ StrWrite -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.StrWrite (P: PChar);
|
|
|
+VAR L: Word; Q: PByteArray;
|
|
|
+BEGIN
|
|
|
+ L := 0; { Preset zero size }
|
|
|
+ Q := PByteArray(P); { Transfer type }
|
|
|
+ If (Q <> Nil) Then While (Q^[L] <> 0) Do Inc(L); { PChar length }
|
|
|
+ Write(L, SizeOf(L)); { Store length }
|
|
|
+ If (P <> Nil) Then Write(P[0], L); { Write data }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ WriteStr -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.WriteStr (P: PString);
|
|
|
+CONST Empty: String[1] = '';
|
|
|
+BEGIN
|
|
|
+ If (P <> Nil) Then Write(P^, Length(P^) + 1) { Write string }
|
|
|
+ Else Write(Empty, 1); { Write empty string }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Open -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.Open (OpenMode: Word);
|
|
|
+BEGIN { Abstract method }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Error -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.Error (Code, Info: Integer);
|
|
|
+TYPE TErrorProc = Procedure(Var S: TStream);
|
|
|
+BEGIN
|
|
|
+ Status := Code; { Hold error code }
|
|
|
+ ErrorInfo := Info; { Hold error info }
|
|
|
+ If (StreamError <> Nil) Then
|
|
|
+ TErrorProc(StreamError)(Self); { Call error ptr }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Read -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.Read (Var Buf; Count: Sw_Word);
|
|
|
+BEGIN
|
|
|
+ Abstract; { Abstract error }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ Write -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.Write (Var Buf; Count: Sw_Word);
|
|
|
+BEGIN
|
|
|
+ Abstract; { Abstract error }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStream------------------------------------------------------------------}
|
|
|
+{ CopyFrom -> Platforms DOS/DPMI/WIN/OS2 - Checked 10May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStream.CopyFrom (Var S: TStream; Count: Longint);
|
|
|
+VAR W: Word; Buffer: Array[0..1023] of Byte;
|
|
|
+BEGIN
|
|
|
+ While (Count > 0) Do Begin
|
|
|
+ If (Count > SizeOf(Buffer)) Then { To much data }
|
|
|
+ W := SizeOf(Buffer) Else W := Count; { Size to transfer }
|
|
|
+ S.Read(Buffer, W); { Read from stream }
|
|
|
+ Write(Buffer, W); { Write to stream }
|
|
|
+ Dec(Count, W); { Dec write count }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TDosStream OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TDosStream---------------------------------------------------------------}
|
|
|
+{ Init -> Platforms DOS/DPMI/WIN/OS2 - Checked 16May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TDosStream.Init (FileName: FNameStr; Mode: Word);
|
|
|
+VAR Success: Integer;
|
|
|
+BEGIN
|
|
|
+ Inherited Init; { Call ancestor }
|
|
|
+ {$IFDEF OS_WINDOWS} { WIN CODE }
|
|
|
+ AnsiToOEM(FileName, FName); { Ansi to OEM }
|
|
|
+ {$ELSE} { DOS/DPMI/OS2 CODE }
|
|
|
+ FileName := FileName+#0; { Make asciiz }
|
|
|
+ Move(FileName[1], FName, Length(FileName)); { Create asciiz name }
|
|
|
+ {$ENDIF}
|
|
|
+ Handle := FileOpen(FName, Mode); { Open the file }
|
|
|
+ If (Handle <> 0) Then Begin { Handle valid }
|
|
|
+ Success := SetFilePos(Handle, 0, 2, StreamSize); { Locate end of file }
|
|
|
+ If (Success = 0) Then
|
|
|
+ Success := SetFilePos(Handle, 0, 0, Position); { Reset to file start }
|
|
|
+ End Else Success := 103; { Open file failed }
|
|
|
+ If (Handle = 0) OR (Success <> 0) Then Begin { Open failed }
|
|
|
+ Handle := -1; { Reset invalid handle }
|
|
|
+ Error(stInitError, Success); { Call stream error }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TDosStream---------------------------------------------------------------}
|
|
|
+{ Done -> Platforms DOS/DPMI/WIN/OS2 - Checked 16May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+DESTRUCTOR TDosStream.Done;
|
|
|
+BEGIN
|
|
|
+ If (Handle <> -1) Then FileClose(Handle); { Close the file }
|
|
|
+ Inherited Done; { Call ancestor }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TDosStream---------------------------------------------------------------}
|
|
|
+{ Close -> Platforms DOS/DPMI/WIN/OS2 - Checked 16May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TDosStream.Close;
|
|
|
+BEGIN
|
|
|
+ If (Handle <> -1) Then FileClose(Handle); { Close the file }
|
|
|
+ Position := 0; { Zero the position }
|
|
|
+ Handle := -1; { Handle now invalid }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TDosStream---------------------------------------------------------------}
|
|
|
+{ Truncate -> Platforms DOS/DPMI/WIN/OS2 - Checked 16May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TDosStream.Truncate;
|
|
|
+VAR Success: Integer;
|
|
|
+BEGIN
|
|
|
+ If (Status=stOk) Then Begin { Check status okay }
|
|
|
+ Success := SetFileSize(Handle, Position); { Truncate file }
|
|
|
+ If (Success = 0) Then StreamSize := Position { Adjust size }
|
|
|
+ Else Error(stError, Success); { Identify error }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TDosStream---------------------------------------------------------------}
|
|
|
+{ Seek -> Platforms DOS/DPMI/WIN/OS2 - Checked 16May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TDosStream.Seek (Pos: LongInt);
|
|
|
+VAR Success: Integer; Li: LongInt;
|
|
|
+BEGIN
|
|
|
+ If (Status=stOk) Then Begin { Check status okay }
|
|
|
+ If (Pos < 0) Then Pos := 0; { Negatives removed }
|
|
|
+ If (Handle = -1) Then Success := 103 Else { File not open }
|
|
|
+ Success := SetFilePos(Handle, Pos, 0, Li); { Set file position }
|
|
|
+ If ((Success = -1) OR (Li <> Pos)) Then Begin { We have an error }
|
|
|
+ If (Success = -1) Then Error(stSeekError, 0) { General seek error }
|
|
|
+ Else Error(stSeekError, Success); { Specific seek error }
|
|
|
+ End Else Position := Li; { Adjust position }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TDosStream---------------------------------------------------------------}
|
|
|
+{ Open -> Platforms DOS/DPMI/WIN/OS2 - Checked 16May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TDosStream.Open (OpenMode: Word);
|
|
|
+BEGIN
|
|
|
+ If (Status=stOk) Then Begin { Check status okay }
|
|
|
+ If (Handle = -1) Then Begin { File not open }
|
|
|
+ Handle := FileOpen(FName, OpenMode); { Open the file }
|
|
|
+ Position := 0; { Reset position }
|
|
|
+ If (Handle=0) Then Begin { File open failed }
|
|
|
+ Handle := -1; { Reset handle }
|
|
|
+ Error(stOpenError, 103); { Call stream error }
|
|
|
+ End;
|
|
|
+ End Else Error(stOpenError, 104); { File already open }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TDosStream---------------------------------------------------------------}
|
|
|
+{ Read -> Platforms DOS/DPMI/WIN/OS2 - Checked 16May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TDosStream.Read (Var Buf; Count: Sw_Word);
|
|
|
+VAR Success: Integer; W, BytesMoved: Sw_Word; P: PByteArray;
|
|
|
+BEGIN
|
|
|
+ If (Position + Count > StreamSize) Then { Insufficient data }
|
|
|
+ Error(stReadError, 0); { Read beyond end!!! }
|
|
|
+ If (Handle = -1) Then Error(stReadError, 103); { File not open }
|
|
|
+ P := @Buf; { Transfer address }
|
|
|
+ While (Count>0) AND (Status=stOk) Do Begin { Check status & count }
|
|
|
+ W := Count; { Transfer read size }
|
|
|
+ {$IFNDEF OS_OS2} { DOS/DPMI/WINDOWS }
|
|
|
+ If (Count>$FFFE) Then W := $FFFE; { Cant read >64K bytes }
|
|
|
+ {$ENDIF}
|
|
|
+ Success := FileRead(Handle, P^, W, BytesMoved); { Read from file }
|
|
|
+ If ((Success<>0) OR (BytesMoved<>W)) Then Begin { Error was detected }
|
|
|
+ BytesMoved := 0; { Clear bytes moved }
|
|
|
+ If (Success <> 0) Then
|
|
|
+ Error(stReadError, Success) { Specific read error }
|
|
|
+ Else Error(stReadError, 0); { Non specific error }
|
|
|
+ End;
|
|
|
+ Inc(Position, BytesMoved); { Adjust position }
|
|
|
+ P := Pointer(LongInt(P) + BytesMoved); { Adjust buffer ptr }
|
|
|
+ Dec(Count, BytesMoved); { Adjust count left }
|
|
|
+ End;
|
|
|
+ If (Count<>0) Then FillChar(P^, Count, #0); { Error clear buffer }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TDosStream---------------------------------------------------------------}
|
|
|
+{ Write -> Platforms DOS/DPMI/WIN/OS2 - Checked 16May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TDosStream.Write (Var Buf; Count: Sw_Word);
|
|
|
+VAR Success: Integer; W, BytesMoved: Sw_Word; P: PByteArray;
|
|
|
+BEGIN
|
|
|
+ If (Handle = -1) Then Error(stWriteError, 103); { File not open }
|
|
|
+ P := @Buf; { Transfer address }
|
|
|
+ While (Count>0) AND (Status=stOk) Do Begin { Check status & count }
|
|
|
+ W := Count; { Transfer read size }
|
|
|
+ {$IFNDEF OS_OS2} { DOS/DPMI/WINDOWS }
|
|
|
+ If (Count>$FFFF) Then W := $FFFF; { Cant read >64K bytes }
|
|
|
+ {$ENDIF}
|
|
|
+ Success := FileWrite(Handle, P^, W, BytesMoved); { Write to file }
|
|
|
+ If ((Success<>0) OR (BytesMoved<>W)) Then Begin { Error was detected }
|
|
|
+ BytesMoved := 0; { Clear bytes moved }
|
|
|
+ If (Success<>0) Then
|
|
|
+ Error(stWriteError, Success) { Specific write error }
|
|
|
+ Else Error(stWriteError, 0); { Non specific error }
|
|
|
+ End;
|
|
|
+ Inc(Position, BytesMoved); { Adjust position }
|
|
|
+ P := Pointer(LongInt(P) + BytesMoved); { Transfer address }
|
|
|
+ Dec(Count, BytesMoved); { Adjust count left }
|
|
|
+ If (Position > StreamSize) Then { File expanded }
|
|
|
+ StreamSize := Position; { Adjust stream size }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TBufStream OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TBufStream---------------------------------------------------------------}
|
|
|
+{ Init -> Platforms DOS/DPMI/WIN/OS2 - Checked 17May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TBufStream.Init (FileName: FNameStr; Mode, Size: Word);
|
|
|
+BEGIN
|
|
|
+ Inherited Init(FileName, Mode); { Call ancestor }
|
|
|
+ BufSize := Size; { Hold buffer size }
|
|
|
+ If (Size<>0) Then GetMem(Buffer, Size); { Allocate buffer }
|
|
|
+ If (Buffer=Nil) Then Error(stInitError, 0); { Buffer allocate fail }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TBufStream---------------------------------------------------------------}
|
|
|
+{ Done -> Platforms DOS/DPMI/WIN/OS2 - Checked 17May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+DESTRUCTOR TBufStream.Done;
|
|
|
+BEGIN
|
|
|
+ Flush; { Flush the file }
|
|
|
+ Inherited Done; { Call ancestor }
|
|
|
+ If (Buffer<>Nil) Then FreeMem(Buffer, BufSize); { Release buffer }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TBufStream---------------------------------------------------------------}
|
|
|
+{ Close -> Platforms DOS/DPMI/WIN/OS2 - Checked 17May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TBufStream.Close;
|
|
|
+BEGIN
|
|
|
+ Flush; { Flush the buffer }
|
|
|
+ Inherited Close; { Call ancestor }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TBufStream---------------------------------------------------------------}
|
|
|
+{ Flush -> Platforms DOS/DPMI/WIN/OS2 - Checked 17May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TBufStream.Flush;
|
|
|
+VAR Success: Integer; W: Sw_Word;
|
|
|
+BEGIN
|
|
|
+ If (LastMode=2) AND (BufPtr<>0) Then Begin { Must update file }
|
|
|
+ If (Handle = -1) Then Success := 103 { File is not open }
|
|
|
+ Else Success := FileWrite(Handle, Buffer^,
|
|
|
+ BufPtr, W); { Write to file }
|
|
|
+ If (Success<>0) OR (W<>BufPtr) Then { We have an error }
|
|
|
+ If (Success=0) Then Error(stWriteError, 0) { Unknown write error }
|
|
|
+ Else Error(stError, Success); { Specific write error }
|
|
|
+ End;
|
|
|
+ BufPtr := 0; { Reset buffer ptr }
|
|
|
+ BufEnd := 0; { Reset buffer end }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TBufStream---------------------------------------------------------------}
|
|
|
+{ Truncate -> Platforms DOS/DPMI/WIN/OS2 - Checked 17May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TBufStream.Truncate;
|
|
|
+BEGIN
|
|
|
+ Flush; { Flush buffer }
|
|
|
+ Inherited Truncate; { Truncate file }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TBufStream---------------------------------------------------------------}
|
|
|
+{ Seek -> Platforms DOS/DPMI/WIN/OS2 - Checked 17May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TBufStream.Seek (Pos: LongInt);
|
|
|
+BEGIN
|
|
|
+ If (Status=stOk) Then Begin { Check status okay }
|
|
|
+ If (Position<>Pos) Then Begin { Move required }
|
|
|
+ Flush; { Flush the buffer }
|
|
|
+ Inherited Seek(Pos); { Call ancestor }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TBufStream---------------------------------------------------------------}
|
|
|
+{ Open -> Platforms DOS/DPMI/WIN/OS2 - Checked 17May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TBufStream.Open (OpenMode: Word);
|
|
|
+BEGIN
|
|
|
+ If (Status=stOk) Then Begin { Check status okay }
|
|
|
+ BufPtr := 0; { Clear buffer start }
|
|
|
+ BufEnd := 0; { Clear buffer end }
|
|
|
+ Inherited Open(OpenMode); { Call ancestor }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TBufStream---------------------------------------------------------------}
|
|
|
+{ Read -> Platforms DOS/DPMI/WIN/OS2 - Checked 17May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TBufStream.Read (Var Buf; Count: Sw_Word);
|
|
|
+VAR Success: Integer; W, Bw: Sw_Word; P: PByteArray;
|
|
|
+BEGIN
|
|
|
+ If (Position + Count > StreamSize) Then { Read pas stream end }
|
|
|
+ Error(stReadError, 0); { Call stream error }
|
|
|
+ If (Handle = -1) Then Error(stReadError, 103); { File not open }
|
|
|
+ P := @Buf; { Transfer address }
|
|
|
+ If (LastMode=2) Then Flush; { Flush write buffer }
|
|
|
+ LastMode := 1; { Now set read mode }
|
|
|
+ While (Count>0) AND (Status=stOk) Do Begin { Check status & count }
|
|
|
+ If (BufPtr=BufEnd) Then Begin { Buffer is empty }
|
|
|
+ If (Position + BufSize > StreamSize) Then
|
|
|
+ Bw := StreamSize - Position { Amount of file left }
|
|
|
+ Else Bw := BufSize; { Full buffer size }
|
|
|
+ Success := FileRead(Handle, Buffer^, Bw, W); { Read from file }
|
|
|
+ If ((Success<>0) OR (Bw<>W)) Then Begin { Error was detected }
|
|
|
+ If (Success<>0) Then
|
|
|
+ Error(stReadError, Success) { Specific read error }
|
|
|
+ Else Error(stReadError, 0); { Non specific error }
|
|
|
+ End Else Begin
|
|
|
+ BufPtr := 0; { Reset BufPtr }
|
|
|
+ BufEnd := W; { End of buffer }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ If (Status=stOk) Then Begin { Status still okay }
|
|
|
+ W := BufEnd - BufPtr; { Space in buffer }
|
|
|
+ If (Count < W) Then W := Count; { Set transfer size }
|
|
|
+ Move(Buffer^[BufPtr], P^, W); { Data from buffer }
|
|
|
+ Dec(Count, W); { Reduce count }
|
|
|
+ Inc(BufPtr, W); { Advance buffer ptr }
|
|
|
+ P := Pointer(LongInt(P) + W); { Transfer address }
|
|
|
+ Inc(Position, W); { Advance position }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ If (Status<>stOk) AND (Count>0) Then
|
|
|
+ FillChar(P^, Count, #0); { Error clear buffer }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TBufStream---------------------------------------------------------------}
|
|
|
+{ Write -> Platforms DOS/DPMI/WIN/OS2 - Checked 17May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TBufStream.Write (Var Buf; Count: Sw_Word);
|
|
|
+VAR Success: Integer; W: Sw_Word; P: PByteArray;
|
|
|
+BEGIN
|
|
|
+ If (Handle = -1) Then Error(stWriteError, 103); { File not open }
|
|
|
+ If (LastMode=1) Then Flush; { Flush read buffer }
|
|
|
+ LastMode := 2; { Now set write mode }
|
|
|
+ P := @Buf; { Transfer address }
|
|
|
+ While (Count>0) AND (Status=stOk) Do Begin { Check status & count }
|
|
|
+ If (BufPtr=BufSize) Then Begin { Buffer is full }
|
|
|
+ Success := FileWrite(Handle, Buffer^, BufSize,
|
|
|
+ W); { Write to file }
|
|
|
+ If (Success<>0) OR (W<>BufSize) Then { We have an error }
|
|
|
+ If (Success=0) Then Error(stWriteError, 0) { Unknown write error }
|
|
|
+ Else Error(stError, Success); { Specific write error }
|
|
|
+ BufPtr := 0; { Reset BufPtr }
|
|
|
+ End;
|
|
|
+ If (Status=stOk) Then Begin { Status still okay }
|
|
|
+ W := BufSize - BufPtr; { Space in buffer }
|
|
|
+ If (Count < W) Then W := Count; { Transfer size }
|
|
|
+ Move(P^, Buffer^[BufPtr], W); { Data to buffer }
|
|
|
+ Dec(Count, W); { Reduce count }
|
|
|
+ Inc(BufPtr, W); { Advance buffer ptr }
|
|
|
+ P := Pointer(LongInt(P) + W); { Transfer address }
|
|
|
+ Inc(Position, W); { Advance position }
|
|
|
+ If (Position > StreamSize) Then { File has expanded }
|
|
|
+ StreamSize := Position; { Update new size }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TMemoryStream OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TMemoryStream------------------------------------------------------------}
|
|
|
+{ Init -> Platforms DOS/DPMI/WIN/OS2 - Checked 19May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TMemoryStream.Init (ALimit: LongInt; ABlockSize: Word);
|
|
|
+VAR W: Word;
|
|
|
+BEGIN
|
|
|
+ Inherited Init; { Call ancestor }
|
|
|
+ If (ABlockSize=0) Then BlkSize := 8192 Else { Default blocksize }
|
|
|
+ BlkSize := ABlockSize; { Set blocksize }
|
|
|
+ If (ALimit = 0) Then W := 1 Else { At least 1 block }
|
|
|
+ W := (ALimit + BlkSize - 1) DIV BlkSize; { Blocks needed }
|
|
|
+ If NOT ChangeListSize(W) Then { Try allocate blocks }
|
|
|
+ Error(stInitError, 0); { Initialize error }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TMemoryStream------------------------------------------------------------}
|
|
|
+{ Done -> Platforms DOS/DPMI/WIN/OS2 - Checked 19May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+DESTRUCTOR TMemoryStream.Done;
|
|
|
+BEGIN
|
|
|
+ ChangeListSize(0); { Release all memory }
|
|
|
+ Inherited Done; { Call ancestor }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TMemoryStream------------------------------------------------------------}
|
|
|
+{ Truncate -> Platforms DOS/DPMI/WIN/OS2 - Checked 19May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TMemoryStream.Truncate;
|
|
|
+VAR W: Word;
|
|
|
+BEGIN
|
|
|
+ If (Status=stOk) Then Begin { Check status okay }
|
|
|
+ If (Position = 0) Then W := 1 Else { At least one block }
|
|
|
+ W := (Position + BlkSize - 1) DIV BlkSize; { Blocks needed }
|
|
|
+ If ChangeListSize(W) Then StreamSize := Position { Set stream size }
|
|
|
+ Else Error(stError, 0); { Error truncating }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TMemoryStream------------------------------------------------------------}
|
|
|
+{ Read -> Platforms DOS/DPMI/WIN/OS2 - Checked 19May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TMemoryStream.Read (Var Buf; Count: Sw_Word);
|
|
|
+VAR W, CurBlock, BlockPos: Word; Li: LongInt; P, Q: PByteArray;
|
|
|
+BEGIN
|
|
|
+ If (Position + Count > StreamSize) Then { Insufficient data }
|
|
|
+ Error(stReadError, 0); { Read beyond end!!! }
|
|
|
+ P := @Buf; { Transfer address }
|
|
|
+ While (Count>0) AND (Status=stOk) Do Begin { Check status & count }
|
|
|
+ CurBlock := Position DIV BlkSize; { Current block }
|
|
|
+ { * REMARK * - Do not shorten this, result can be > 64K }
|
|
|
+ Li := CurBlock; { Transfer current block }
|
|
|
+ Li := Li * BlkSize; { Current position }
|
|
|
+ { * REMARK END * - Leon de Boer }
|
|
|
+ BlockPos := Position - Li; { Current position }
|
|
|
+ W := BlkSize - BlockPos; { Current block space }
|
|
|
+ If (W > Count) Then W := Count; { Adjust read size }
|
|
|
+ Q := Pointer(LongInt(BlkList^[CurBlock]) +
|
|
|
+ BlockPos); { Calc pointer }
|
|
|
+ Move(Q^, P^, W); { Move data to buffer }
|
|
|
+ Inc(Position, W); { Adjust position }
|
|
|
+ P := Pointer(LongInt(P) + W); { Transfer address }
|
|
|
+ Dec(Count, W); { Adjust count left }
|
|
|
+ End;
|
|
|
+ If (Count<>0) Then FillChar(P^, Count, #0); { Error clear buffer }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TMemoryStream------------------------------------------------------------}
|
|
|
+{ Write -> Platforms DOS/DPMI/WIN/OS2 - Checked 19May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TMemoryStream.Write (Var Buf; Count: Sw_Word);
|
|
|
+VAR W, CurBlock, BlockPos: Word; Li: LongInt; P, Q: PByteArray;
|
|
|
+BEGIN
|
|
|
+ If (Position + Count > MemSize) Then Begin { Expansion needed }
|
|
|
+ If (Position + Count = 0) Then W := 1 Else { At least 1 block }
|
|
|
+ W := (Position+Count+BlkSize-1) DIV BlkSize; { Blocks needed }
|
|
|
+ If NOT ChangeListSize(W) Then
|
|
|
+ Error(stWriteError, 0); { Expansion failed!!! }
|
|
|
+ End;
|
|
|
+ P := @Buf; { Transfer address }
|
|
|
+ While (Count>0) AND (Status=stOk) Do Begin { Check status & count }
|
|
|
+ CurBlock := Position DIV BlkSize; { Current segment }
|
|
|
+ { * REMARK * - Do not shorten this, result can be > 64K }
|
|
|
+ Li := CurBlock; { Transfer current block }
|
|
|
+ Li := Li * BlkSize; { Current position }
|
|
|
+ { * REMARK END * - Leon de Boer }
|
|
|
+ BlockPos := Position - Li; { Current position }
|
|
|
+ W := BlkSize - BlockPos; { Current block space }
|
|
|
+ If (W > Count) Then W := Count; { Adjust write size }
|
|
|
+ Q := Pointer(LongInt(BlkList^[CurBlock]) +
|
|
|
+ BlockPos); { Calc pointer }
|
|
|
+ Move(P^, Q^, W); { Transfer data }
|
|
|
+ Inc(Position, W); { Adjust position }
|
|
|
+ P := Pointer(LongInt(P) + W); { Transfer address }
|
|
|
+ Dec(Count, W); { Adjust count left }
|
|
|
+ If (Position > StreamSize) Then { File expanded }
|
|
|
+ StreamSize := Position; { Adjust stream size }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{***************************************************************************}
|
|
|
+{ TMemoryStream PRIVATE METHODS }
|
|
|
+{***************************************************************************}
|
|
|
+
|
|
|
+{--TMemoryStream------------------------------------------------------------}
|
|
|
+{ ChangeListSize -> Platforms DOS/DPMI/WIN/OS2 - Checked 19May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TMemoryStream.ChangeListSize (ALimit: Sw_Word): Boolean;
|
|
|
+VAR I, W: Word; Li, Ti: LongInt; P: PPointerArray;
|
|
|
+BEGIN
|
|
|
+ If (ALimit <> BlkCount) Then Begin { Change is needed }
|
|
|
+ ChangeListSize := False; { Preset failure }
|
|
|
+ If (ALimit > MaxPtrs) Then Exit; { To many blocks req }
|
|
|
+ If (ALimit <> 0) Then Begin { Create segment list }
|
|
|
+ Li := ALimit * SizeOf(Pointer); { Block array size }
|
|
|
+ If (MaxAvail > Li) Then Begin
|
|
|
+ GetMem(P, Li); { Allocate memory }
|
|
|
+ FillChar(P^, Li, #0); { Clear the memory }
|
|
|
+ End Else Exit; { Insufficient memory }
|
|
|
+ If (BlkCount <> 0) AND (BlkList <> Nil) Then { Current list valid }
|
|
|
+ If (BlkCount <= ALimit) Then Move(BlkList^,
|
|
|
+ P^, BlkCount * SizeOf(Pointer)) Else { Move whole old list }
|
|
|
+ Move(BlkList^, P^, Li); { Move partial list }
|
|
|
+ End Else P := Nil; { No new block list }
|
|
|
+ If (ALimit < BlkCount) Then { Shrink stream size }
|
|
|
+ For W := BlkCount-1 DownTo ALimit Do
|
|
|
+ FreeMem(BlkList^[W], BlkSize); { Release memory block }
|
|
|
+ If (P <> Nil) AND (ALimit > BlkCount) Then Begin { Expand stream size }
|
|
|
+ For W := BlkCount To ALimit-1 Do Begin
|
|
|
+ If (MaxAvail < BlkSize) Then Begin { Check enough memory }
|
|
|
+ For I := BlkCount To W-1 Do
|
|
|
+ FreeMem(P^[I], BlkSize); { Free mem allocated }
|
|
|
+ FreeMem(P, Li); { Release memory }
|
|
|
+ Exit; { Now exit }
|
|
|
+ End Else GetMem(P^[W], BlkSize); { Allocate memory }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ If (BlkCount <> 0) AND (BlkList<>Nil) Then
|
|
|
+ FreeMem(BlkList, BlkCount * SizeOf(Pointer)); { Release old list }
|
|
|
+ BlkList := P; { Hold new block list }
|
|
|
+ BlkCount := ALimit; { Hold new count }
|
|
|
+ { * REMARK * - Do not shorten this, result can be > 64K }
|
|
|
+ MemSize := BlkCount; { Block count }
|
|
|
+ MemSize := MemSize * BlkSize; { Current position }
|
|
|
+ { * REMARK END * - Leon de Boer }
|
|
|
+ End;
|
|
|
+ ChangeListSize := True; { Successful }
|
|
|
+END;
|
|
|
+
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TCollection OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ Init -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TCollection.Init (ALimit, ADelta: Sw_Integer);
|
|
|
+BEGIN
|
|
|
+ Inherited Init; { Call ancestor }
|
|
|
+ Delta := ADelta; { Set increment }
|
|
|
+ SetLimit(ALimit); { Set limit }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ Load -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TCollection.Load (Var S: TStream);
|
|
|
+VAR C, I: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ S.Read(Count, Sizeof(Count)); { Read count }
|
|
|
+ S.Read(Limit, Sizeof(Limit)); { Read limit }
|
|
|
+ S.Read(Delta, Sizeof(Delta)); { Read delta }
|
|
|
+ Items := Nil; { Clear item pointer }
|
|
|
+ C := Count; { Hold count }
|
|
|
+ I := Limit; { Hold limit }
|
|
|
+ Count := 0; { Clear count }
|
|
|
+ Limit := 0; { Clear limit }
|
|
|
+ SetLimit(I); { Set requested limit }
|
|
|
+ Count := C; { Set count }
|
|
|
+ For I := 0 To C-1 Do AtPut(I, GetItem(S)); { Get each item }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ Done -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+DESTRUCTOR TCollection.Done;
|
|
|
+BEGIN
|
|
|
+ FreeAll; { Free all items }
|
|
|
+ SetLimit(0); { Release all memory }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ At -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TCollection.At (Index: Sw_Integer): Pointer;
|
|
|
+BEGIN
|
|
|
+ If (Index < 0) OR (Index >= Count) Then Begin { Invalid index }
|
|
|
+ Error(coIndexError, Index); { Call error }
|
|
|
+ At := Nil; { Return nil }
|
|
|
+ End Else At := Items^[Index]; { Return item }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ IndexOf -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TCollection.IndexOf (Item: Pointer): Sw_Integer;
|
|
|
+VAR I: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ If (Count>0) Then Begin { Count is positive }
|
|
|
+ For I := 0 To Count-1 Do { For each item }
|
|
|
+ If (Items^[I]=Item) Then Begin { Look for match }
|
|
|
+ IndexOf := I; { Return index }
|
|
|
+ Exit; { Now exit }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ IndexOf := -1; { Return index }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ GetItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TCollection.GetItem (Var S: TStream): Pointer;
|
|
|
+BEGIN
|
|
|
+ GetItem := S.Get; { Item off stream }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ LastThat -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TCollection.LastThat (Test: Pointer): Pointer;
|
|
|
+VAR I: LongInt; P: FuncPtr; Hold_EBP: Sw_Word;
|
|
|
+
|
|
|
+BEGIN
|
|
|
+ ASM
|
|
|
+ {$IFDEF CPU86}
|
|
|
+ MOVL (%EBP), %EAX; { Load EBP }
|
|
|
+ MOVL %EAX, Hold_EBP; { Store to global }
|
|
|
+ {$ENDIF}
|
|
|
+ {$IFDEF CPU68}
|
|
|
+ move.l (a6), d0
|
|
|
+ move.l d0, Hold_EBP
|
|
|
+ {$ENDIF}
|
|
|
+ END;
|
|
|
+ P := FuncPtr(Test); { Set function ptr }
|
|
|
+ For I := Count DownTo 1 Do
|
|
|
+ Begin { Down from last item }
|
|
|
+ Begin { Test each item }
|
|
|
+ LastThat := Items^[I-1]; { Return item }
|
|
|
+ Exit; { Now exit }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ LastThat := Nil; { None passed test }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ FirstThat -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TCollection.FirstThat (Test: Pointer): Pointer;
|
|
|
+VAR I: LongInt; P: FuncPtr; Hold_EBP: Sw_Word;
|
|
|
+BEGIN
|
|
|
+ ASM
|
|
|
+ {$IFDEF CPU86}
|
|
|
+ MOVL (%EBP), %EAX; { Load EBP }
|
|
|
+ MOVL %EAX, HOLD_EBP; { Store to global }
|
|
|
+ {$ENDIF}
|
|
|
+ {$IFDEF CPU68}
|
|
|
+ move.l (a6), d0
|
|
|
+ move.l d0, Hold_EBP
|
|
|
+ {$ENDIF}
|
|
|
+ END;
|
|
|
+ P := FuncPtr(Test); { Set function ptr }
|
|
|
+ For I := 1 To Count Do Begin { Up from first item }
|
|
|
+ Begin { Test each item }
|
|
|
+ FirstThat := Items^[I-1]; { Return item }
|
|
|
+ Exit; { Now exit }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ FirstThat := Nil; { None passed test }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ Pack -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.Pack;
|
|
|
+VAR I, J: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ I := 0; { Initialize dest }
|
|
|
+ J := 0; { Intialize test }
|
|
|
+ While (I<Count) AND (J<Limit) Do Begin { Check fully packed }
|
|
|
+ If (Items^[J]<>Nil) Then Begin { Found a valid item }
|
|
|
+ If (I<>J) Then Begin
|
|
|
+ Items^[I] := Items^[J]; { Transfer item }
|
|
|
+ Items^[J] := Nil; { Now clear old item }
|
|
|
+ End;
|
|
|
+ Inc(I); { One item packed }
|
|
|
+ End;
|
|
|
+ Inc(J); { Next item to test }
|
|
|
+ End;
|
|
|
+ If (I<Count) Then Count := I; { New packed count }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ FreeAll -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.FreeAll;
|
|
|
+VAR I: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ For I := 0 To Count-1 Do FreeItem(At(I)); { Release each item }
|
|
|
+ Count := 0; { Clear item count }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ DeleteAll -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.DeleteAll;
|
|
|
+BEGIN
|
|
|
+ Count := 0; { Clear item count }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ Free -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.Free (Item: Pointer);
|
|
|
+BEGIN
|
|
|
+ Delete(Item); { Delete from list }
|
|
|
+ FreeItem(Item); { Free the item }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ Insert -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.Insert (Item: Pointer);
|
|
|
+BEGIN
|
|
|
+ AtInsert(Count, Item); { Insert item }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ Delete -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.Delete (Item: Pointer);
|
|
|
+BEGIN
|
|
|
+ AtDelete(IndexOf(Item)); { Delete from list }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ AtFree -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.AtFree (Index: Sw_Integer);
|
|
|
+VAR Item: Pointer;
|
|
|
+BEGIN
|
|
|
+ Item := At(Index); { Retreive item ptr }
|
|
|
+ AtDelete(Index); { Delete item }
|
|
|
+ FreeItem(Item); { Free the item }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ FreeItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.FreeItem (Item: Pointer);
|
|
|
+VAR P: PObject;
|
|
|
+BEGIN
|
|
|
+ P := PObject(Item); { Convert pointer }
|
|
|
+ If (P<>Nil) Then Dispose(P, Done); { Dispose of object }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ AtDelete -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.AtDelete (Index: Sw_Integer);
|
|
|
+BEGIN
|
|
|
+ If (Index >= 0) AND (Index < Count) Then Begin { Valid index }
|
|
|
+ Dec(Count); { One less item }
|
|
|
+ If (Count>Index) Then Move(Items^[Index+1],
|
|
|
+ Items^[Index], (Count-Index)*Sizeof(Pointer)); { Shuffle items down }
|
|
|
+ End Else Error(coIndexError, Index); { Index error }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ ForEach -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.ForEach (Action: Pointer);
|
|
|
+VAR I: LongInt; Hold_BP: Sw_Word; P: ProcPtr;
|
|
|
+BEGIN
|
|
|
+ ASM
|
|
|
+ {$IFDEF CPU86}
|
|
|
+ MOVL (%EBP), %EAX; { Load EBP }
|
|
|
+ MOVL %EAX, HOLD_BP; { Store to global }
|
|
|
+ {$ENDIF}
|
|
|
+ {$IFDEF CPU68}
|
|
|
+ movel.l (a6),d0
|
|
|
+ move.l d0, Hold_BP
|
|
|
+ {$ENDIF}
|
|
|
+ END;
|
|
|
+ P := ProcPtr(Action); { Set procedure ptr }
|
|
|
+ For I := 1 To Count Do { Up from first item }
|
|
|
+ P(Items^[I-1], Hold_BP); { Call with each item }
|
|
|
+
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ SetLimit -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.SetLimit (ALimit: Sw_Integer);
|
|
|
+VAR AItems: PItemList;
|
|
|
+BEGIN
|
|
|
+ If (ALimit < Count) Then ALimit := Count; { Stop underflow }
|
|
|
+ If (ALimit > MaxCollectionSize) Then
|
|
|
+ ALimit := MaxCollectionSize; { Stop overflow }
|
|
|
+ If (ALimit <> Limit) Then Begin { Limits differ }
|
|
|
+ If (ALimit = 0) Then AItems := Nil Else Begin { Alimit=0 nil entry }
|
|
|
+ GetMem(AItems, ALimit * SizeOf(Pointer)); { Allocate memory }
|
|
|
+ If (AItems<>Nil) Then FillChar(AItems^,
|
|
|
+ ALimit * SizeOf(Pointer), #0); { Clear the memory }
|
|
|
+ End;
|
|
|
+ If (AItems<>Nil) OR (ALimit=0) Then Begin { Check success }
|
|
|
+ If (AItems <>Nil) AND (Items <> Nil) Then { Check both valid }
|
|
|
+ Move(Items^, AItems^, Count*SizeOf(Pointer));{ Move existing items }
|
|
|
+ If (Limit <> 0) AND (Items <> Nil) Then { Check old allocation }
|
|
|
+ FreeMem(Items, Limit * SizeOf(Pointer)); { Release memory }
|
|
|
+ Items := AItems; { Update items }
|
|
|
+ Limit := ALimit; { Set limits }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ Error -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.Error (Code, Info: Integer);
|
|
|
+BEGIN
|
|
|
+ RunError(212 - Code); { Run error }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ AtPut -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.AtPut (Index: Sw_Integer; Item: Pointer);
|
|
|
+BEGIN
|
|
|
+ If (Index >= 0) AND (Index < Count) Then { Index valid }
|
|
|
+ Items^[Index] := Item { Put item in index }
|
|
|
+ Else Error(coIndexError, Index); { Index error }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ AtInsert -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.AtInsert (Index: Sw_Integer; Item: Pointer);
|
|
|
+VAR I: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ If (Index >= 0) AND (Index <= Count) Then Begin { Valid index }
|
|
|
+ If (Count=Limit) Then SetLimit(Limit+Delta); { Expand size if able }
|
|
|
+ If (Limit>Count) Then Begin
|
|
|
+ If (Index < Count) Then Begin { Not last item }
|
|
|
+ For I := Count DownTo Index Do { Start from back }
|
|
|
+ Items^[I] := Items^[I-1]; { Move each item }
|
|
|
+ End;
|
|
|
+ Items^[Index] := Item; { Put item in list }
|
|
|
+ Inc(Count); { Inc count }
|
|
|
+ End Else Error(coOverflow, Index); { Expand failed }
|
|
|
+ End Else Error(coIndexError, Index); { Index error }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ Store -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.Store (Var S: TStream);
|
|
|
+
|
|
|
+ PROCEDURE DoPutItem (P: Pointer); FAR;
|
|
|
+ BEGIN
|
|
|
+ PutItem(S, P); { Put item on stream }
|
|
|
+ END;
|
|
|
+
|
|
|
+BEGIN
|
|
|
+ S.Write(Count, Sizeof(Count)); { Write count }
|
|
|
+ S.Write(Limit, Sizeof(Limit)); { Write limit }
|
|
|
+ S.Write(Delta, Sizeof(Delta)); { Write delta }
|
|
|
+ ForEach(@DoPutItem); { Each item to stream }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TCollection--------------------------------------------------------------}
|
|
|
+{ PutItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TCollection.PutItem (Var S: TStream; Item: Pointer);
|
|
|
+BEGIN
|
|
|
+ S.Put(Item); { Put item on stream }
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TSortedCollection OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TSortedCollection--------------------------------------------------------}
|
|
|
+{ Init -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TSortedCollection.Init (ALimit, ADelta: Sw_Integer);
|
|
|
+BEGIN
|
|
|
+ Inherited Init(ALimit, ADelta); { Call ancestor }
|
|
|
+ Duplicates := False; { Clear flag }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TSortedCollection--------------------------------------------------------}
|
|
|
+{ Load -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TSortedCollection.Load (Var S: TStream);
|
|
|
+BEGIN
|
|
|
+ Inherited Load(S); { Call ancestor }
|
|
|
+ S.Read(Duplicates, SizeOf(Duplicates)); { Read duplicate flag }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TSortedCollection--------------------------------------------------------}
|
|
|
+{ KeyOf -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TSortedCollection.KeyOf (Item: Pointer): Pointer;
|
|
|
+BEGIN
|
|
|
+ KeyOf := Item; { Return item as key }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TSortedCollection--------------------------------------------------------}
|
|
|
+{ IndexOf -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TSortedCollection.IndexOf (Item: Pointer): Sw_Integer;
|
|
|
+VAR I, J: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ J := -1; { Preset result }
|
|
|
+ If Search(KeyOf(Item), I) Then Begin { Search for item }
|
|
|
+ If Duplicates Then { Duplicates allowed }
|
|
|
+ While (I < Count) AND (Item <> Items^[I]) Do
|
|
|
+ Inc(I); { Count duplicates }
|
|
|
+ If (I < Count) Then J := I; { Index result }
|
|
|
+ End;
|
|
|
+ IndexOf := J; { Return result }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TSortedCollection--------------------------------------------------------}
|
|
|
+{ Compare -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TSortedCollection.Compare (Key1, Key2: Pointer): Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ Abstract; { Abstract method }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TSortedCollection--------------------------------------------------------}
|
|
|
+{ Search -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TSortedCollection.Search (Key: Pointer; Var Index: Sw_Integer): Boolean;
|
|
|
+VAR L, H, I, C: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ Search := False; { Preset failure }
|
|
|
+ L := 0; { Start count }
|
|
|
+ H := Count - 1; { End count }
|
|
|
+ While (L <= H) Do Begin
|
|
|
+ I := (L + H) SHR 1; { Mid point }
|
|
|
+ C := Compare(KeyOf(Items^[I]), Key); { Compare with key }
|
|
|
+ If (C < 0) Then L := I + 1 Else Begin { Item to left }
|
|
|
+ H := I - 1; { Item to right }
|
|
|
+ If C = 0 Then Begin { Item match found }
|
|
|
+ Search := True; { Result true }
|
|
|
+ If NOT Duplicates Then L := I; { Force kick out }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ Index := L; { Return result }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TSortedCollection--------------------------------------------------------}
|
|
|
+{ Insert -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TSortedCollection.Insert (Item: Pointer);
|
|
|
+VAR I: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ If NOT Search(KeyOf(Item), I) OR Duplicates Then { Item valid }
|
|
|
+ AtInsert(I, Item); { Insert the item }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TSortedCollection--------------------------------------------------------}
|
|
|
+{ Store -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TSortedCollection.Store (Var S: TStream);
|
|
|
+BEGIN
|
|
|
+ TCollection.Store(S); { Call ancestor }
|
|
|
+ S.Write(Duplicates, SizeOf(Duplicates)); { Write duplicate flag }
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TStringCollection OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TStringCollection--------------------------------------------------------}
|
|
|
+{ GetItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TStringCollection.GetItem (Var S: TStream): Pointer;
|
|
|
+BEGIN
|
|
|
+ GetItem := S.ReadStr; { Get new item }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStringCollection--------------------------------------------------------}
|
|
|
+{ Compare -> Platforms DOS/DPMI/WIN/OS2 - Checked 21Aug97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TStringCollection.Compare (Key1, Key2: Pointer): Sw_Integer;
|
|
|
+VAR I, J: Integer; P1, P2: PString;
|
|
|
+BEGIN
|
|
|
+ P1 := PString(Key1); { String 1 pointer }
|
|
|
+ P2 := PString(Key2); { String 2 pointer }
|
|
|
+ If (Length(P1^)<Length(P2^)) Then J := Length(P1^)
|
|
|
+ Else J := Length(P2^); { Shortest length }
|
|
|
+ I := 1; { First character }
|
|
|
+ While (I<J) AND (P1^[I]=P2^[I]) Do Inc(I); { Scan till fail }
|
|
|
+ If (I=J) Then Begin { Possible match }
|
|
|
+ { * REMARK * - Bug fix 21 August 1997 }
|
|
|
+ If (P1^[I]<P2^[I]) Then Compare := -1 Else { String1 < String2 }
|
|
|
+ If (P1^[I]>P2^[I]) Then Compare := 1 Else { String1 > String2 }
|
|
|
+ If (Length(P1^)>Length(P2^)) Then Compare := 1 { String1 > String2 }
|
|
|
+ Else If (Length(P1^)<Length(P2^)) Then { String1 < String2 }
|
|
|
+ Compare := -1 Else Compare := 0; { String1 = String2 }
|
|
|
+ { * REMARK END * - Leon de Boer }
|
|
|
+ End Else If (P1^[I]<P2^[I]) Then Compare := -1 { String1 < String2 }
|
|
|
+ Else Compare := 1; { String1 > String2 }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStringCollection--------------------------------------------------------}
|
|
|
+{ FreeItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStringCollection.FreeItem (Item: Pointer);
|
|
|
+BEGIN
|
|
|
+ DisposeStr(Item); { Dispose item }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStringCollection--------------------------------------------------------}
|
|
|
+{ PutItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 22May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStringCollection.PutItem (Var S: TStream; Item: Pointer);
|
|
|
+BEGIN
|
|
|
+ S.WriteStr(Item); { Write string }
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TStrCollection OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TStrCollection-----------------------------------------------------------}
|
|
|
+{ Compare -> Platforms DOS/DPMI/WIN/OS2 - Checked 23May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TStrCollection.Compare (Key1, Key2: Pointer): Sw_Integer;
|
|
|
+VAR I, J: Sw_Integer; P1, P2: PByteArray;
|
|
|
+BEGIN
|
|
|
+ P1 := PByteArray(Key1); { PChar 1 pointer }
|
|
|
+ P2 := PByteArray(Key2); { PChar 2 pointer }
|
|
|
+ I := 0; { Preset no size }
|
|
|
+ If (P1<>Nil) Then While (P1^[I]<>0) Do Inc(I); { PChar 1 length }
|
|
|
+ J := 0; { Preset no size }
|
|
|
+ If (P2<>Nil) Then While (P2^[J]<>0) Do Inc(J); { PChar 2 length }
|
|
|
+ If (I < J) Then J := I; { Shortest length }
|
|
|
+ I := 0; { First character }
|
|
|
+ While (I<J) AND (P1^[I]=P2^[I]) Do Inc(I); { Scan till fail }
|
|
|
+ If (P1^[I]=P2^[I]) Then Compare := 0 Else { Strings matched }
|
|
|
+ If (P1^[I]<P2^[I]) Then Compare := -1 Else { String1 < String2 }
|
|
|
+ Compare := 1; { String1 > String2 }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStrCollection-----------------------------------------------------------}
|
|
|
+{ GetItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 23May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TStrCollection.GetItem (Var S: TStream): Pointer;
|
|
|
+BEGIN
|
|
|
+ GetItem := S.StrRead; { Get string item }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStrCollection-----------------------------------------------------------}
|
|
|
+{ FreeItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 23May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStrCollection.FreeItem (Item: Pointer);
|
|
|
+VAR I: Sw_Integer; P: PByteArray;
|
|
|
+BEGIN
|
|
|
+ If (Item<>Nil) Then Begin { Item is valid }
|
|
|
+ P := PByteArray(Item); { Create byte pointer }
|
|
|
+ I := 0; { Preset no size }
|
|
|
+ While (P^[I]<>0) Do Inc(I); { Find PChar end }
|
|
|
+ FreeMem(Item, I+1); { Release memory }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStrCollection-----------------------------------------------------------}
|
|
|
+{ PutItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 23May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStrCollection.PutItem (Var S: TStream; Item: Pointer);
|
|
|
+BEGIN
|
|
|
+ S.StrWrite(Item); { Write the string }
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TUnSortedStrCollection OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TUnSortedCollection------------------------------------------------------}
|
|
|
+{ Insert -> Platforms DOS/DPMI/WIN/OS2 - Checked 23May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TUnSortedStrCollection.Insert (Item: Pointer);
|
|
|
+BEGIN
|
|
|
+ AtInsert(Count, Item); { Insert - NO sorting }
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TResourceItem RECORD }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+TYPE
|
|
|
+ TResourceItem = RECORD
|
|
|
+ Posn: LongInt; { Resource position }
|
|
|
+ Size: LongInt; { Resource size }
|
|
|
+ Key : String; { Resource key }
|
|
|
+ End;
|
|
|
+ PResourceItem = ^TResourceItem;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TResourceCollection OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TResourceCollection------------------------------------------------------}
|
|
|
+{ KeyOf -> Platforms DOS/DPMI/WIN/OS2 - Checked 24May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TResourceCollection.KeyOf (Item: Pointer): Pointer;
|
|
|
+BEGIN
|
|
|
+ KeyOf := @PResourceItem(Item)^.Key; { Pointer to key }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceCollection------------------------------------------------------}
|
|
|
+{ GetItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 24May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TResourceCollection.GetItem (Var S: TStream): Pointer;
|
|
|
+VAR B: Byte; Pos: Longint; Size: Longint; Ts: String; P: PResourceItem;
|
|
|
+BEGIN
|
|
|
+ S.Read(Pos, SizeOf(Pos)); { Read position }
|
|
|
+ S.Read(Size, SizeOf(Size)); { Read size }
|
|
|
+ S.Read(B, 1); { Read key length }
|
|
|
+ GetMem(P, B + (SizeOf(TResourceItem) -
|
|
|
+ SizeOf(Ts) + 1)); { Allocate min memory }
|
|
|
+ If (P<>Nil) Then Begin { If allocate works }
|
|
|
+ P^.Posn := Pos; { Xfer position }
|
|
|
+ P^.Size := Size; { Xfer size }
|
|
|
+ P^.Key[0] := Char(B); { Xfer string length }
|
|
|
+ S.Read(P^.Key[1], B); { Xfer string data }
|
|
|
+ End;
|
|
|
+ GetItem := P; { Return pointer }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceCollection------------------------------------------------------}
|
|
|
+{ FreeItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 24May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TResourceCollection.FreeItem (Item: Pointer);
|
|
|
+VAR Ts: String;
|
|
|
+BEGIN
|
|
|
+ If (Item<>Nil) Then FreeMem(Item,
|
|
|
+ SizeOf(TResourceItem) - SizeOf(Ts) +
|
|
|
+ Length(PResourceItem(Item)^.Key) + 1); { Release memory }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceCollection------------------------------------------------------}
|
|
|
+{ PutItem -> Platforms DOS/DPMI/WIN/OS2 - Checked 24May96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TResourceCollection.PutItem (Var S: TStream; Item: Pointer);
|
|
|
+VAR Ts: String;
|
|
|
+BEGIN
|
|
|
+ If (Item<>Nil) Then S.Write(PResourceItem(Item)^,
|
|
|
+ SizeOf(TResourceItem) - SizeOf(Ts) +
|
|
|
+ Length(PResourceItem(Item)^.Key) + 1); { Write to stream }
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ PRIVATE RESOURCE MANAGER CONSTANTS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+CONST
|
|
|
+ RStreamMagic: LongInt = $52504246; { 'FBPR' }
|
|
|
+ RStreamBackLink: LongInt = $4C424246; { 'FBBL' }
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ PRIVATE RESOURCE MANAGER TYPES }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+TYPE
|
|
|
+{$IFDEF NewExeFormat} { New EXE format }
|
|
|
+ TExeHeader = RECORD
|
|
|
+ eHdrSize: Word;
|
|
|
+ eMinAbove: Word;
|
|
|
+ eMaxAbove: Word;
|
|
|
+ eInitSS: Word;
|
|
|
+ eInitSP: Word;
|
|
|
+ eCheckSum: Word;
|
|
|
+ eInitPC: Word;
|
|
|
+ eInitCS: Word;
|
|
|
+ eRelocOfs: Word;
|
|
|
+ eOvlyNum: Word;
|
|
|
+ eRelocTab: Word;
|
|
|
+ eSpace: Array[1..30] of Byte;
|
|
|
+ eNewHeader: Word;
|
|
|
+ END;
|
|
|
+{$ENDIF}
|
|
|
+
|
|
|
+ THeader = RECORD
|
|
|
+ Signature: Word;
|
|
|
+ Case Integer Of
|
|
|
+ 0: (
|
|
|
+ LastCount: Word;
|
|
|
+ PageCount: Word;
|
|
|
+ ReloCount: Word);
|
|
|
+ 1: (
|
|
|
+ InfoType: Word;
|
|
|
+ InfoSize: Longint);
|
|
|
+ End;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TResourceFile OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TResourceFile------------------------------------------------------------}
|
|
|
+{ Init -> Platforms DOS/DPMI/WIN/OS2 - Checked 18Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TResourceFile.Init(AStream: PStream);
|
|
|
+VAR Found, Stop: Boolean; Header: THeader;
|
|
|
+ {$IFDEF NewExeFormat} ExeHeader: TExeHeader; {$ENDIF}
|
|
|
+BEGIN
|
|
|
+ TObject.Init; { Initialize object }
|
|
|
+ Found := False; { Preset false }
|
|
|
+ If (Stream<>Nil) Then Begin
|
|
|
+ Stream := AStream; { Hold stream }
|
|
|
+ BasePos := Stream^.GetPos; { Get position }
|
|
|
+ Repeat
|
|
|
+ Stop := True; { Preset stop }
|
|
|
+ If (BasePos <= Stream^.GetSize-SizeOf(THeader))
|
|
|
+ Then Begin { Valid file header }
|
|
|
+ Stream^.Seek(BasePos); { Seek to position }
|
|
|
+ Stream^.Read(Header, SizeOf(THeader)); { Read header }
|
|
|
+ Case Header.Signature Of
|
|
|
+ {$IFDEF NewExeFormat} { New format file }
|
|
|
+ $5A4D: Begin
|
|
|
+ Stream^.Read(ExeHeader, SizeOf(TExeHeader));
|
|
|
+ BasePos := ExeHeader.eNewHeader; { Hold position }
|
|
|
+ Stop := False; { Clear stop flag }
|
|
|
+ End;
|
|
|
+ $454E: Begin
|
|
|
+ BasePos := Stream^.GetSize - 8; { Hold position }
|
|
|
+ Stop := False; { Clear stop flag }
|
|
|
+ End;
|
|
|
+ $4246: Begin
|
|
|
+ Stop := False; { Clear stop flag }
|
|
|
+ Case Header.Infotype Of
|
|
|
+ $5250: Begin { Found Resource }
|
|
|
+ Found := True; { Found flag is true }
|
|
|
+ Stop := True; { Set stop flag }
|
|
|
+ End;
|
|
|
+ $4C42: Dec(BasePos, Header.InfoSize-8);{ Found BackLink }
|
|
|
+ $4648: Dec(BasePos, SizeOf(THeader)*2);{ Found HelpFile }
|
|
|
+ Else Stop := True; { Set stop flag }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ $424E: If Header.InfoType = $3230 { Found Debug Info }
|
|
|
+ Then Begin
|
|
|
+ Dec(BasePos, Header.InfoSize); { Adjust position }
|
|
|
+ Stop := False; { Clear stop flag }
|
|
|
+ End;
|
|
|
+ {$ELSE}
|
|
|
+ $5A4D: Begin
|
|
|
+ Inc(BasePos, LongInt(Header.PageCount)*512
|
|
|
+ - (-Header.LastCount AND 511)); { Calc position }
|
|
|
+ Stop := False; { Clear stop flag }
|
|
|
+ End;
|
|
|
+ $4246: If Header.InfoType = $5250 Then { Header was found }
|
|
|
+ Found := True Else Begin
|
|
|
+ Inc(BasePos, Header.InfoSize + 8); { Adjust position }
|
|
|
+ Stop := False; { Clear stop flag }
|
|
|
+ End;
|
|
|
+ {$ENDIF}
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ Until Stop; { Until flag is set }
|
|
|
+ End;
|
|
|
+ If Found Then Begin { Resource was found }
|
|
|
+ Stream^.Seek(BasePos + SizeOf(LongInt) * 2); { Seek to position }
|
|
|
+ Stream^.Read(IndexPos, SizeOf(LongInt)); { Read index position }
|
|
|
+ Stream^.Seek(BasePos + IndexPos); { Seek to resource }
|
|
|
+ Index.Load(Stream^); { Load resource }
|
|
|
+ End Else Begin
|
|
|
+ IndexPos := SizeOf(LongInt) * 3; { Set index position }
|
|
|
+ Index.Init(0, 8); { Set index }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceFile------------------------------------------------------------}
|
|
|
+{ Done -> Platforms DOS/DPMI/WIN/OS2 - Checked 18Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+DESTRUCTOR TResourceFile.Done;
|
|
|
+BEGIN
|
|
|
+ Flush; { Flush the file }
|
|
|
+ Index.Done; { Dispose of index }
|
|
|
+ If (Stream<>Nil) Then Dispose(Stream, Done); { Dispose of stream }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceFile------------------------------------------------------------}
|
|
|
+{ Count -> Platforms DOS/DPMI/WIN/OS2 - Checked 18Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TResourceFile.Count: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ Count := Index.Count; { Return index count }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceFile------------------------------------------------------------}
|
|
|
+{ KeyAt -> Platforms DOS/DPMI/WIN/OS2 - Checked 18Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TResourceFile.KeyAt (I: Sw_Integer): String;
|
|
|
+BEGIN
|
|
|
+ KeyAt := PResourceItem(Index.At(I))^.Key; { Return key }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceFile------------------------------------------------------------}
|
|
|
+{ Get -> Platforms DOS/DPMI/WIN/OS2 - Checked 18Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TResourceFile.Get (Key: String): PObject;
|
|
|
+VAR I: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ If (Stream = Nil) OR (NOT Index.Search(@Key, I)) { No match on key }
|
|
|
+ Then Get := Nil Else Begin
|
|
|
+ Stream^.Seek(BasePos +
|
|
|
+ PResourceItem(Index.At(I))^.Posn); { Seek to position }
|
|
|
+ Get := Stream^.Get; { Get item }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceFile------------------------------------------------------------}
|
|
|
+{ SwitchTo -> Platforms DOS/DPMI/WIN/OS2 - Checked 18Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TResourceFile.SwitchTo (AStream: PStream; Pack: Boolean): PStream;
|
|
|
+VAR NewBasePos: LongInt;
|
|
|
+
|
|
|
+ PROCEDURE DoCopyResource (Item: PResourceItem); FAR;
|
|
|
+ BEGIN
|
|
|
+ Stream^.Seek(BasePos + Item^.Posn); { Move stream position }
|
|
|
+ Item^.Posn := AStream^.GetPos - NewBasePos; { Hold new position }
|
|
|
+ AStream^.CopyFrom(Stream^, Item^.Size); { Copy the item }
|
|
|
+ END;
|
|
|
+
|
|
|
+BEGIN
|
|
|
+ SwitchTo := Stream; { Preset return }
|
|
|
+ If (AStream<>Nil) AND (Stream<>Nil) Then Begin { Both streams valid }
|
|
|
+ NewBasePos := AStream^.GetPos; { Get position }
|
|
|
+ If Pack Then Begin
|
|
|
+ AStream^.Seek(NewBasePos + SizeOf(LongInt)*3); { Seek to position }
|
|
|
+ Index.ForEach(@DoCopyResource); { Copy each resource }
|
|
|
+ IndexPos := AStream^.GetPos - NewBasePos; { Hold index position }
|
|
|
+ End Else Begin
|
|
|
+ Stream^.Seek(BasePos); { Seek to position }
|
|
|
+ AStream^.CopyFrom(Stream^, IndexPos); { Copy the resource }
|
|
|
+ End;
|
|
|
+ Stream := AStream; { Hold new stream }
|
|
|
+ BasePos := NewBasePos; { New base position }
|
|
|
+ Modified := True; { Set modified flag }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceFile------------------------------------------------------------}
|
|
|
+{ Flush -> Platforms DOS/DPMI/WIN/OS2 - Checked 18Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TResourceFile.Flush;
|
|
|
+VAR ResSize: LongInt; LinkSize: LongInt;
|
|
|
+BEGIN
|
|
|
+ If (Modified) AND (Stream<>Nil) Then Begin { We have modification }
|
|
|
+ Stream^.Seek(BasePos + IndexPos); { Seek to position }
|
|
|
+ Index.Store(Stream^); { Store the item }
|
|
|
+ ResSize := Stream^.GetPos - BasePos; { Hold position }
|
|
|
+ LinkSize := ResSize + SizeOf(LongInt) * 2; { Hold link size }
|
|
|
+ Stream^.Write(RStreamBackLink, SizeOf(LongInt)); { Write link back }
|
|
|
+ Stream^.Write(LinkSize, SizeOf(LongInt)); { Write link size }
|
|
|
+ Stream^.Seek(BasePos); { Move stream position }
|
|
|
+ Stream^.Write(RStreamMagic, SizeOf(LongInt)); { Write number }
|
|
|
+ Stream^.Write(ResSize, SizeOf(LongInt)); { Write record size }
|
|
|
+ Stream^.Write(IndexPos, SizeOf(LongInt)); { Write index position }
|
|
|
+ Stream^.Flush; { Flush the stream }
|
|
|
+ End;
|
|
|
+ Modified := False; { Clear modified flag }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceFile------------------------------------------------------------}
|
|
|
+{ Delete -> Platforms DOS/DPMI/WIN/OS2 - Checked 18Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TResourceFile.Delete (Key: String);
|
|
|
+VAR I: Sw_Integer;
|
|
|
+BEGIN
|
|
|
+ If Index.Search(@Key, I) Then Begin { Search for key }
|
|
|
+ Index.Free(Index.At(I)); { Delete from index }
|
|
|
+ Modified := True; { Set modified flag }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{--TResourceFile------------------------------------------------------------}
|
|
|
+{ Put -> Platforms DOS/DPMI/WIN/OS2 - Checked 18Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TResourceFile.Put (Item: PObject; Key: String);
|
|
|
+VAR I: Sw_Integer; Ts: String; P: PResourceItem;
|
|
|
+BEGIN
|
|
|
+ If (Stream=Nil) Then Exit; { Stream not valid }
|
|
|
+ If Index.Search(@Key, I) Then P := Index.At(I) { Search for item }
|
|
|
+ Else Begin
|
|
|
+ GetMem(P, Length(Key) + (SizeOf(TResourceItem) -
|
|
|
+ SizeOf(Ts) + 1)); { Allocate memory }
|
|
|
+ If (P<>Nil) Then Begin
|
|
|
+ P^.Key := Key; { Store key }
|
|
|
+ Index.AtInsert(I, P); { Insert item }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ If (P<>Nil) Then Begin
|
|
|
+ P^.Posn := IndexPos; { Set index position }
|
|
|
+ Stream^.Seek(BasePos + IndexPos); { Seek file position }
|
|
|
+ Stream^.Put(Item); { Put item on stream }
|
|
|
+ IndexPos := Stream^.GetPos - BasePos; { Hold index position }
|
|
|
+ P^.Size := IndexPos - P^.Posn; { Calc size }
|
|
|
+ Modified := True; { Set modified flag }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TStringList OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TStringList--------------------------------------------------------------}
|
|
|
+{ Load -> Platforms DOS/DPMI/WIN/OS2 - Checked 30Jun97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TStringList.Load (Var S: TStream);
|
|
|
+VAR Size: Word;
|
|
|
+BEGIN
|
|
|
+ Stream := @S; { Hold stream pointer }
|
|
|
+ S.Read(Size, SizeOf(Word)); { Read size }
|
|
|
+ BasePos := S.GetPos; { Hold position }
|
|
|
+ S.Seek(BasePos + Size); { Seek to position }
|
|
|
+ S.Read(IndexSize, SizeOf(Integer)); { Read index size }
|
|
|
+ GetMem(Index, IndexSize * SizeOf(TStrIndexRec)); { Allocate memory }
|
|
|
+ S.Read(Index^, IndexSize * SizeOf(TStrIndexRec)); { Read indexes }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStringList--------------------------------------------------------------}
|
|
|
+{ Done -> Platforms DOS/DPMI/WIN/OS2 - Checked 30Jun97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+DESTRUCTOR TStringList.Done;
|
|
|
+BEGIN
|
|
|
+ FreeMem(Index, IndexSize * SizeOf(TStrIndexRec)); { Release memory }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStringList--------------------------------------------------------------}
|
|
|
+{ Get -> Platforms DOS/DPMI/WIN/OS2 - Checked 30Jun97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION TStringList.Get (Key: Sw_Word): String;
|
|
|
+VAR I: Word; S: String;
|
|
|
+BEGIN
|
|
|
+ S := ''; { Preset empty string }
|
|
|
+ If (IndexSize>0) Then Begin { We must have strings }
|
|
|
+ I := 0; { First entry }
|
|
|
+ While (I<IndexSize) AND (S='') Do Begin
|
|
|
+ If ((Key - Index^[I].Key)<Index^[I].Count) { Diff less than count }
|
|
|
+ Then ReadStr(S, Index^[I].Offset,
|
|
|
+ Key-Index^[I].Key); { Read the string }
|
|
|
+ Inc(I); { Next entry }
|
|
|
+ End;
|
|
|
+ End;
|
|
|
+ Get := S; { Return empty string }
|
|
|
+END;
|
|
|
+
|
|
|
+{***************************************************************************}
|
|
|
+{ TStringList PRIVATE METHODS }
|
|
|
+{***************************************************************************}
|
|
|
+
|
|
|
+{--TStringLis---------------------------------------------------------------}
|
|
|
+{ ReadStr -> Platforms DOS/DPMI/WIN/OS2 - Checked 30Jun97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStringList.ReadStr (Var S: String; Offset, Skip: Sw_Word);
|
|
|
+BEGIN
|
|
|
+ Stream^.Seek(BasePos + Offset); { Seek to position }
|
|
|
+ Inc(Skip); { Adjust skip }
|
|
|
+ Repeat
|
|
|
+ Stream^.Read(S[0], 1); { Read string size }
|
|
|
+ Stream^.Read(S[1], Ord(S[0])); { Read string data }
|
|
|
+ Dec(Skip); { One string read }
|
|
|
+ Until (Skip = 0);
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ TStrListMaker OBJECT METHODS }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{--TStrListMaker------------------------------------------------------------}
|
|
|
+{ Init -> Platforms DOS/DPMI/WIN/OS2 - Checked 30Jun97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+CONSTRUCTOR TStrListMaker.Init (AStrSize, AIndexSize: Sw_Word);
|
|
|
+BEGIN
|
|
|
+ Inherited Init; { Call ancestor }
|
|
|
+ StrSize := AStrSize; { Hold size }
|
|
|
+ IndexSize := AIndexSize; { Hold index size }
|
|
|
+ GetMem(Strings, AStrSize); { Allocate memory }
|
|
|
+ GetMem(Index, AIndexSize * SizeOf(TStrIndexRec)); { Allocate memory }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStrListMaker------------------------------------------------------------}
|
|
|
+{ Done -> Platforms DOS/DPMI/WIN/OS2 - Checked 30Jun97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+DESTRUCTOR TStrListMaker.Done;
|
|
|
+BEGIN
|
|
|
+ FreeMem(Index, IndexSize * SizeOf(TStrIndexRec)); { Free index memory }
|
|
|
+ FreeMem(Strings, StrSize); { Free data memory }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStrListMaker------------------------------------------------------------}
|
|
|
+{ Put -> Platforms DOS/DPMI/WIN/OS2 - Checked 30Jun97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStrListMaker.Put (Key: Sw_Word; S: String);
|
|
|
+BEGIN
|
|
|
+ If (Cur.Count = 16) OR (Key <> Cur.Key + Cur.Count)
|
|
|
+ Then CloseCurrent; { Close current }
|
|
|
+ If (Cur.Count = 0) Then Begin
|
|
|
+ Cur.Key := Key; { Set key }
|
|
|
+ Cur.Offset := StrPos; { Set offset }
|
|
|
+ End;
|
|
|
+ Inc(Cur.Count); { Inc count }
|
|
|
+ Move(S, Strings^[StrPos], Length(S) + 1); { Move string data }
|
|
|
+ Inc(StrPos, Length(S) + 1); { Adjust position }
|
|
|
+END;
|
|
|
+
|
|
|
+{--TStrListMaker------------------------------------------------------------}
|
|
|
+{ Store -> Platforms DOS/DPMI/WIN/OS2 - Checked 30Jun97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStrListMaker.Store (Var S: TStream);
|
|
|
+BEGIN
|
|
|
+ CloseCurrent; { Close all current }
|
|
|
+ S.Write(StrPos, SizeOf(Word)); { Write position }
|
|
|
+ S.Write(Strings^, StrPos); { Write string data }
|
|
|
+ S.Write(IndexPos, SizeOf(Word)); { Write index position }
|
|
|
+ S.Write(Index^, IndexPos * SizeOf(TStrIndexRec)); { Write indexes }
|
|
|
+END;
|
|
|
+
|
|
|
+{***************************************************************************}
|
|
|
+{ TStrListMaker PRIVATE METHODS }
|
|
|
+{***************************************************************************}
|
|
|
+
|
|
|
+{--TStrListMaker------------------------------------------------------------}
|
|
|
+{ CloseCurrent -> Platforms DOS/DPMI/WIN/OS2 - Checked 30Jun97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE TStrListMaker.CloseCurrent;
|
|
|
+BEGIN
|
|
|
+ If (Cur.Count <> 0) Then Begin
|
|
|
+ Index^[IndexPos] := Cur; { Hold index position }
|
|
|
+ Inc(IndexPos); { Next index }
|
|
|
+ Cur.Count := 0; { Adjust count }
|
|
|
+ End;
|
|
|
+END;
|
|
|
+
|
|
|
+{***************************************************************************}
|
|
|
+{ INTERFACE ROUTINES }
|
|
|
+{***************************************************************************}
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ DYNAMIC STRING INTERFACE ROUTINES }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ NewStr -> Platforms DOS/DPMI/WINDOWS/OS2 - Checked 12Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION NewStr (Const S: String): PString;
|
|
|
+VAR P: PString;
|
|
|
+BEGIN
|
|
|
+ If (S = '') Then P := Nil Else Begin { Return nil }
|
|
|
+ GetMem(P, Length(S) + 1); { Allocate memory }
|
|
|
+ If (P<>Nil) Then P^ := S; { Hold string }
|
|
|
+ End;
|
|
|
+ NewStr := P; { Return result }
|
|
|
+END;
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ DisposeStr -> Platforms DOS/DPMI/WINDOWS/OS2 - Checked 12Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE DisposeStr (P: PString);
|
|
|
+BEGIN
|
|
|
+ If (P <> Nil) Then FreeMem(P, Length(P^) + 1); { Release memory }
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ STREAM INTERFACE ROUTINES }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ Abstract -> Platforms DOS/DPMI/WINDOWS/OS2 - Checked 12Jun96 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE Abstract;
|
|
|
+BEGIN
|
|
|
+ RunError(211); { Abstract error }
|
|
|
+END;
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ RegisterObjects -> Platforms DOS/DPMI/WINDOWS/OS2 - Checked 02Sep97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE RegisterObjects;
|
|
|
+BEGIN
|
|
|
+{ ******************************* REMARK ****************************** }
|
|
|
+{ FPK 0.92 compiler wont handle this section OFS seems not to be a }
|
|
|
+{ defined function which we need -> Function Ofs(X): LongInt; So for }
|
|
|
+{ now we must exclude these and in the RegisterObjects code. }
|
|
|
+{ ****************************** END REMARK *** Leon de Boer, 04Sep97 * }
|
|
|
+{ RegisterType(RCollection); } { Register object }
|
|
|
+{ RegisterType(RStringCollection); } { Register object }
|
|
|
+{ RegisterType(RStrCollection); } { Register object }
|
|
|
+END;
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ RegisterType -> Platforms DOS/DPMI/WINDOWS/OS2 - Checked 02Sep97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+PROCEDURE RegisterType (Var S: TStreamRec);
|
|
|
+VAR P: PStreamRec;
|
|
|
+BEGIN
|
|
|
+ P := StreamTypes; { Current reg list }
|
|
|
+ While (P <> Nil) AND (P^.ObjType <> S.ObjType)
|
|
|
+ Do P := P^.Next; { Find end of chain }
|
|
|
+ If (P = Nil) AND (S.ObjType <> 0) Then Begin { Valid end found }
|
|
|
+ S.Next := StreamTypes; { Chain the list }
|
|
|
+ StreamTypes := @S; { We are now first }
|
|
|
+ End Else RegisterError; { Register the error }
|
|
|
+END;
|
|
|
+
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+{ GENERAL FUNCTION INTERFACE ROUTINES }
|
|
|
+{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
+
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ LongMul -> Platforms DOS/DPMI/WINDOWS/OS2 - Checked 04Sep97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION LongMul (X, Y: Integer): LongInt;
|
|
|
+ BEGIN
|
|
|
+ LongMul:=Longint(X*Y);
|
|
|
+ END;
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+{ LongDiv -> Platforms DOS/DPMI/WINDOWS/OS2 - Checked 04Sep97 LdB }
|
|
|
+{---------------------------------------------------------------------------}
|
|
|
+FUNCTION LongDiv (X: LongInt; Y: Integer): Integer;
|
|
|
+BEGIN
|
|
|
+ LongDiv := Integer(X DIV Y);
|
|
|
+END;
|
|
|
+
|
|
|
+
|
|
|
+END.
|
carl