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-{ $Id$ }
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-{**********************************************************}
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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, 1998, 1999, 2000 }
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-{ [email protected] - primary e-mail address }
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-{ [email protected] - backup e-mail address }
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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 SOURCE CODE is distributed "AS IS" WITHOUT }
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-{ WARRANTIES AS TO PERFORMANCE OF MERCHANTABILITY OR }
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-{ ANY OTHER WARRANTIES WHETHER EXPRESSED OR IMPLIED. }
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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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-{ DPMI - Turbo Pascal 7.0 + (16 Bit) }
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-{ - FPC 0.9912+ (GO32V2) (32 Bit) }
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-{ WINDOWS - Turbo Pascal 7.0 + (16 Bit) }
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-{ - Delphi 1.0+ (16 Bit) }
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-{ WIN95/NT - Delphi 2.0+ (32 Bit) }
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-{ - Virtual Pascal 2.0+ (32 Bit) }
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-{ - Speedsoft Sybil 2.0+ (32 Bit) }
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-{ - FPC 0.9912+ (32 Bit) }
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-{ OS2 - Virtual Pascal 1.0+ (32 Bit) }
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-{ - Speed Pascal 1.0+ (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 Fixed TStringCollection.Compare }
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-{ 1.10 18 Jul 97 Windows 95 support added. }
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-{ 1.11 21 Aug 97 FPC 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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-{ FPC - bugged 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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-{ 1.60 22 Oct 97 Delphi3 32 bit code added. }
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-{ 1.70 05 Feb 98 Speed pascal code added. }
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-{ 1.80 05 May 98 Virtual pascal 2.0 compiler added. }
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-{ 1.85 10 Sep 98 Checks run & commenting added. }
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-{ 1.90 03 Nov 98 Fixed for FPC version 0.998 }
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-{ Only Go32v2 supported no Go32v1 }
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-{ 1.95 02 Feb 99 Moved some stuff to common.pas }
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-{ 1.97 28 May 99 Bug fix to TCollection.AtInsert }
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-{ 1.98 07 Jul 99 Speedsoft SYBIL 2.0 code added. }
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-{ 1.99 08 Jul 99 Fixed TCollection FirstThat etc. }
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-{ 2.00 27 Oct 99 All stream read/writes checked. }
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-{ Delphi3+ memory code to COMMON.PAS }
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-{ 2.01 03 Nov 99 FPC windows support added. }
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-{ 2.02 14 Nov 00 Fixed XMS/EMS Stream read/writes. }
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-{**********************************************************}
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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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-{$I Platform.inc}
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-{====================================================================}
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-
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-{==== Compiler directives ===========================================}
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-
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-{$IFNDEF PPC_FPC} { FPC doesn't support these switches }
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- {$F+} { Force far calls - Used because of the Foreach, FirstThat etc...}
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- {$A+} { Word Align Data }
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- {$B-} { Allow short circuit boolean evaluations }
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- {$O+} { This unit may be overlaid }
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- {$G+} { 286 Code optimization - if you're on an 8088 get a real computer }
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- {$E+} { Emulation is on }
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- {$N-} { No 80x87 code generation }
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-{$ENDIF}
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-
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-{$X+} { Extended syntax is ok }
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-{$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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-{====================================================================}
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-
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-USES
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- {$IFDEF OS_WINDOWS} { WIN/NT CODE }
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- {$IFNDEF PPC_SPEED} { NON SPEED COMPILER }
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- {$IFDEF PPC_FPC} { FPC WINDOWS COMPILER }
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- Windows, { Standard unit }
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- {$ELSE} { OTHER COMPILERS }
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- WinTypes, WinProcs, { Stardard units }
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- {$ENDIF}
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- {$ELSE} { SPEEDSOFT COMPILER }
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- WinBase, WinUser, { Standard unit }
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- {$ENDIF}
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- {$ENDIF}
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-
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- Common, FileIO; { GFV standard units }
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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 = fa_Create; { Create new file }
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- stOpenRead = fa_OpenRead; { Read access only }
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- stOpenWrite = fa_OpenWrite; { Write access only }
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- stOpen = fa_Open; { 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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-{$IFDEF PPC_Virtual} { Virtual is different }
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-CONST
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- vmtHeaderSize = 12; { VMT header size }
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-{$ELSE}
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-CONST
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- vmtHeaderSize = 8; { VMT header size }
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-{$ENDIF}
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-
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-{---------------------------------------------------------------------------}
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-{ MAXIUM DATA SIZES }
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-{---------------------------------------------------------------------------}
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-CONST
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- MaxCollectionSize = 65520 DIV SizeOf(Pointer); { Max collection size }
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-
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-{***************************************************************************}
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-{ PTBMIC 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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-{ 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} { WIN/NT 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} { LINUX DEFINE }
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- FNameStr = String; { Linux filename }
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-{$ENDIF}
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-{$IFDEF OS_AMIGA} { AMIGA DEFINE }
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- FNameStr = String; { Amiga filename }
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-{$ENDIF}
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-{$IFDEF OS_ATARI} { ATARI DEFINE }
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- FNameStr = String[79]; { Atari filename }
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-{$ENDIF}
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-{$IFDEF OS_MAC} { MACINTOSH DEFINE }
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- FNameStr = String; { Mac filename }
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-{$ENDIF}
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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 = PACKED 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 = PACKED 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 = PACKED 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 = PACKED RECORD
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- ObjType: Word; { Object type id }
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- {$IFDEF BP_VmtLink}
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- VmtLink: Sw_Word; { VMT link like BP }
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- {$ELSE}
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- VmtLink: Pointer; { Delphi3/FPC like VMT }
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- {$ENDIF}
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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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- PPoint = ^TPoint;
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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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- PRect = ^TRect;
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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 }
|
|
|
|
|
- FUNCTION Get: PObject;
|
|
|
|
|
- FUNCTION StrRead: PChar;
|
|
|
|
|
- FUNCTION GetPos: LongInt; Virtual;
|
|
|
|
|
- FUNCTION GetSize: LongInt; Virtual;
|
|
|
|
|
- FUNCTION ReadStr: PString;
|
|
|
|
|
- PROCEDURE Open (OpenMode: Word); Virtual;
|
|
|
|
|
- PROCEDURE Close; Virtual;
|
|
|
|
|
- PROCEDURE Reset;
|
|
|
|
|
- PROCEDURE Flush; Virtual;
|
|
|
|
|
- PROCEDURE Truncate; Virtual;
|
|
|
|
|
- PROCEDURE Put (P: PObject);
|
|
|
|
|
- PROCEDURE StrWrite (P: PChar);
|
|
|
|
|
- PROCEDURE WriteStr (P: PString);
|
|
|
|
|
- PROCEDURE Seek (Pos: LongInt); Virtual;
|
|
|
|
|
- PROCEDURE Error (Code, Info: Integer); Virtual;
|
|
|
|
|
- PROCEDURE Read (Var Buf; Count: Word); Virtual;
|
|
|
|
|
- PROCEDURE Write (Var Buf; Count: Word); Virtual;
|
|
|
|
|
- PROCEDURE CopyFrom (Var S: TStream; Count: LongInt);
|
|
|
|
|
- END;
|
|
|
|
|
- PStream = ^TStream;
|
|
|
|
|
-
|
|
|
|
|
-{ ******************************* REMARK ****************************** }
|
|
|
|
|
-{ A few minor changes to this object and an extra field added called }
|
|
|
|
|
-{ FName which holds an AsciiZ array of the filename this allows the }
|
|
|
|
|
-{ streams file to be opened and closed like a normal text file. All }
|
|
|
|
|
-{ existing code should work without any changes. }
|
|
|
|
|
-{ ****************************** END REMARK *** Leon de Boer, 19May96 * }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TDosStream OBJECT - DOS FILE STREAM OBJECT }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-TYPE
|
|
|
|
|
- TDosStream = OBJECT (TStream)
|
|
|
|
|
- Handle: THandle; { DOS file handle }
|
|
|
|
|
- FName : AsciiZ; { AsciiZ filename }
|
|
|
|
|
- CONSTRUCTOR Init (FileName: FNameStr; Mode: Word);
|
|
|
|
|
- DESTRUCTOR Done; Virtual;
|
|
|
|
|
- PROCEDURE Close; Virtual;
|
|
|
|
|
- PROCEDURE Truncate; Virtual;
|
|
|
|
|
- PROCEDURE Seek (Pos: LongInt); Virtual;
|
|
|
|
|
- PROCEDURE Open (OpenMode: Word); Virtual;
|
|
|
|
|
- PROCEDURE Read (Var Buf; Count: Word); Virtual;
|
|
|
|
|
- PROCEDURE Write (Var Buf; Count: Word); Virtual;
|
|
|
|
|
- END;
|
|
|
|
|
- PDosStream = ^TDosStream;
|
|
|
|
|
-
|
|
|
|
|
-{ ******************************* REMARK ****************************** }
|
|
|
|
|
-{ A few minor changes to this object and an extra field added called }
|
|
|
|
|
-{ lastmode which holds the read or write condition last using the }
|
|
|
|
|
-{ speed up buffer which helps speed up the flush, position and size }
|
|
|
|
|
-{ functions. All existing code should work without any changes. }
|
|
|
|
|
-{ ****************************** END REMARK *** Leon de Boer, 19May96 * }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TBufStream OBJECT - BUFFERED DOS FILE STREAM }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-TYPE
|
|
|
|
|
- TBufStream = OBJECT (TDosStream)
|
|
|
|
|
- LastMode: Byte; { Last buffer mode }
|
|
|
|
|
- BufSize : Word; { Buffer size }
|
|
|
|
|
- BufPtr : Word; { Buffer start }
|
|
|
|
|
- BufEnd : 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: Word); Virtual;
|
|
|
|
|
- PROCEDURE Write (Var Buf; Count: 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 dd Boer, 19May96 * }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TMemoryStream OBJECT - MEMORY STREAM OBJECT }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-TYPE
|
|
|
|
|
- TMemoryStream = OBJECT (TStream)
|
|
|
|
|
- BlkCount: 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: Word); Virtual;
|
|
|
|
|
- PROCEDURE Write (Var Buf; Count: Word); Virtual;
|
|
|
|
|
- PRIVATE
|
|
|
|
|
- FUNCTION ChangeListSize (ALimit: Word): Boolean;
|
|
|
|
|
- END;
|
|
|
|
|
- PMemoryStream = ^TMemoryStream;
|
|
|
|
|
-
|
|
|
|
|
-{ ******************************* REMARK ****************************** }
|
|
|
|
|
-{ This object under all but real mode DOS is simple a TMemoryStream }
|
|
|
|
|
-{ by another name. Under real mode DOS programs it copies the standard }
|
|
|
|
|
-{ standard EMS stream object as per Borland's original unit. }
|
|
|
|
|
-{ ****************************** END REMARK *** Leon de Boer, 14Aug98 * }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TEmsStream OBJECT - EMS STREAM OBJECT }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-TYPE
|
|
|
|
|
-{$IFDEF PROC_Real} { DOS REAL MODE CODE }
|
|
|
|
|
- TEmsStream = OBJECT (TStream)
|
|
|
|
|
- Handle : Word; { EMS handle }
|
|
|
|
|
- PageCount: Word; { Pages allocated }
|
|
|
|
|
- MemSize : LongInt; { EMS alloc size }
|
|
|
|
|
- CONSTRUCTOR Init (MinSize, MaxSize: LongInt);
|
|
|
|
|
- DESTRUCTOR Done; Virtual;
|
|
|
|
|
- PROCEDURE Truncate; Virtual;
|
|
|
|
|
- PROCEDURE Read (Var Buf; Count: Word); Virtual;
|
|
|
|
|
- PROCEDURE Write (Var Buf; Count: Word); Virtual;
|
|
|
|
|
- END;
|
|
|
|
|
-{$ELSE} { DPMI/WIN/OS2 CODE }
|
|
|
|
|
- TEmsStream = OBJECT (TMemoryStream) { Memory stream object }
|
|
|
|
|
- CONSTRUCTOR Init (MinSize, MaxSize: LongInt);
|
|
|
|
|
- END;
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
- PEmsStream = ^TEmsStream; { EMS stream pointer }
|
|
|
|
|
-
|
|
|
|
|
-{ ******************************* REMARK ****************************** }
|
|
|
|
|
-{ This object under all but real mode DOS is simple a TMemoryStream }
|
|
|
|
|
-{ by another name. Under real mode DOS programs it is a copy of the }
|
|
|
|
|
-{ EMS stream object but using XMS, it can replace use of TEMSStream. }
|
|
|
|
|
-{ ****************************** END REMARK *** Leon de Boer, 14Aug98 * }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TXmsStream OBJECT - XMS STREAM OBJECT }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-TYPE
|
|
|
|
|
-{$IFDEF PROC_Real} { DOS REAL MODE CODE }
|
|
|
|
|
- TXmsStream = OBJECT (TStream)
|
|
|
|
|
- Handle : Word; { XMS handle number }
|
|
|
|
|
- BlocksUsed: Word; { XMS blocks in use }
|
|
|
|
|
- MemSize : LongInt; { XMS alloc size }
|
|
|
|
|
- CONSTRUCTOR Init (MinSize, MaxSize: LongInt);
|
|
|
|
|
- DESTRUCTOR Done; Virtual;
|
|
|
|
|
- PROCEDURE Truncate; Virtual;
|
|
|
|
|
- PROCEDURE Read (Var Buf; Count: Word); Virtual;
|
|
|
|
|
- PROCEDURE Write (Var Buf; Count: Word); Virtual;
|
|
|
|
|
- END;
|
|
|
|
|
-{$ELSE} { DPMI/WIN/NT/OS2 CODE }
|
|
|
|
|
- TXmsStream = OBJECT (TMemoryStream) { Memory stream object }
|
|
|
|
|
- CONSTRUCTOR Init (MinSize, MaxSize: LongInt);
|
|
|
|
|
- END;
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
- PXmsStream = ^TXmsStream; { XMS stream pointer }
|
|
|
|
|
-
|
|
|
|
|
-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: Integer; { Item count }
|
|
|
|
|
- Limit: Integer; { Item limit count }
|
|
|
|
|
- Delta: Integer; { Inc delta size }
|
|
|
|
|
- CONSTRUCTOR Init (ALimit, ADelta: Integer);
|
|
|
|
|
- CONSTRUCTOR Load (Var S: TStream);
|
|
|
|
|
- DESTRUCTOR Done; Virtual;
|
|
|
|
|
- FUNCTION At (Index: Integer): Pointer;
|
|
|
|
|
- FUNCTION IndexOf (Item: Pointer): 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: Integer);
|
|
|
|
|
- PROCEDURE FreeItem (Item: Pointer); Virtual;
|
|
|
|
|
- PROCEDURE AtDelete (Index: Integer);
|
|
|
|
|
- PROCEDURE ForEach (Action: Pointer);
|
|
|
|
|
- PROCEDURE SetLimit (ALimit: Integer); Virtual;
|
|
|
|
|
- PROCEDURE Error (Code, Info: Integer); Virtual;
|
|
|
|
|
- PROCEDURE AtPut (Index: Integer; Item: Pointer);
|
|
|
|
|
- PROCEDURE AtInsert (Index: 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: Integer);
|
|
|
|
|
- CONSTRUCTOR Load (Var S: TStream);
|
|
|
|
|
- FUNCTION KeyOf (Item: Pointer): Pointer; Virtual;
|
|
|
|
|
- FUNCTION IndexOf (Item: Pointer): Integer; Virtual;
|
|
|
|
|
- FUNCTION Compare (Key1, Key2: Pointer): Integer; Virtual;
|
|
|
|
|
- FUNCTION Search (Key: Pointer; Var Index: 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): 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): 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: Integer;
|
|
|
|
|
- FUNCTION KeyAt (I: 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 = PACKED 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: Word): String;
|
|
|
|
|
- PRIVATE
|
|
|
|
|
- Stream : PStream;
|
|
|
|
|
- BasePos : LongInt;
|
|
|
|
|
- IndexSize: Sw_Word;
|
|
|
|
|
- Index : PStrIndex;
|
|
|
|
|
- PROCEDURE ReadStr (Var S: String; Offset, Skip: Word);
|
|
|
|
|
- END;
|
|
|
|
|
- PStringList = ^TStringList;
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TStrListMaker OBJECT - RESOURCE FILE OBJECT }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-TYPE
|
|
|
|
|
- TStrListMaker = OBJECT (TObject)
|
|
|
|
|
- CONSTRUCTOR Init (AStrSize, AIndexSize: Word);
|
|
|
|
|
- DESTRUCTOR Done; Virtual;
|
|
|
|
|
- PROCEDURE Put (Key: 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;
|
|
|
|
|
- PStrLisuMaker = ^TStrListMaker;
|
|
|
|
|
-
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-{ INTERFACE ROUTINES }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ 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.
|
|
|
|
|
-10Feb98 LdB
|
|
|
|
|
----------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION LongMul (X, Y: Integer): LongInt;
|
|
|
|
|
-
|
|
|
|
|
-{-LongDiv------------------------------------------------------------
|
|
|
|
|
-Returns the integer value of long integer X divided by integer Y.
|
|
|
|
|
-10Feb98 LdB
|
|
|
|
|
----------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION LongDiv (X: LongInt; Y: Integer): Integer;
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ DYNAMIC STRING INTERFACE ROUTINES }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{-NewStr-------------------------------------------------------------
|
|
|
|
|
-Allocates a dynamic string into memory. If S is nil, NewStr returns
|
|
|
|
|
-a nil pointer, otherwise NewStr allocates Mength(S)+1 bytes of memory
|
|
|
|
|
-containing a copy of S, and returns a pointer to the string.
|
|
|
|
|
-12Jun96 LdB
|
|
|
|
|
----------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION NewStr (S: String): PString;
|
|
|
|
|
-
|
|
|
|
|
-{-DisposeStr---------------------------------------------------------
|
|
|
|
|
-Disposes of a PString allocated by the function NewStr.
|
|
|
|
|
-12Jun96 LdB
|
|
|
|
|
----------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE DisposeStr (P: PString);
|
|
|
|
|
-
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-{ PUBLIC INITIALIZED VARIABLES }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ INITIALIZED DOS/DPMI/WIN/NT/OS2 PUBLIC VARIABLES }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONST
|
|
|
|
|
- StreamError : Pointer = Nil; { Stream error ptr }
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ STREAM REGISTRATION RECORDS }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TCollection STREAM REGISTRATION }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONST
|
|
|
|
|
- RCollection: TStreamRec = (
|
|
|
|
|
- ObjType: 50; { Register id = 50 }
|
|
|
|
|
- {$IFDEF BP_VMTLink}
|
|
|
|
|
- VmtLink: Ofs(TypeOf(TCollection)^); { BP style VMT link }
|
|
|
|
|
- {$ELSE}
|
|
|
|
|
- VmtLink: TypeOf(TCollection); { Alt style VMT link }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- Load: @TCollection.Load; { Object load method }
|
|
|
|
|
- Store: @TCollection.Store); { Object store method }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TStringCollection STREAM REGISTRATION }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONST
|
|
|
|
|
- RStringCollection: TStreamRec = (
|
|
|
|
|
- ObjType: 51; { Register id = 51 }
|
|
|
|
|
- {$IFDEF BP_VMTLink}
|
|
|
|
|
- VmtLink: Ofs(TypeOf(TStringCollection)^); { BP style VMT link }
|
|
|
|
|
- {$ELSE}
|
|
|
|
|
- VmtLink: TypeOf(TStringCollection); { Alt style VMT link }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- Load: @TStringCollection.Load; { Object load method }
|
|
|
|
|
- Store: @TStringCollection.Store); { Object store method }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TStrCollection STREAM REGISTRATION }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONST
|
|
|
|
|
- RStrCollection: TStreamRec = (
|
|
|
|
|
- ObjType: 69; { Register id = 69 }
|
|
|
|
|
- {$IFDEF BP_VMTLink}
|
|
|
|
|
- VmtLink: Ofs(TypeOf(TStrCollection)^); { BP style VMT link }
|
|
|
|
|
- {$ELSE}
|
|
|
|
|
- VmtLink: TypeOf(TStrCollection); { Alt style VMT link }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- Load: @TStrCollection.Load; { Object load method }
|
|
|
|
|
- Store: @TStrCollection.Store); { Object store method }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TStringList STREAM REGISTRATION }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONST
|
|
|
|
|
- RStringList: TStreamRec = (
|
|
|
|
|
- ObjType: 52; { Register id = 52 }
|
|
|
|
|
- {$IFDEF BP_VMTLink}
|
|
|
|
|
- VmtLink: Ofs(TypeOf(TStringList)^); { BP style VMT link }
|
|
|
|
|
- {$ELSE}
|
|
|
|
|
- VmtLink: TypeOf(TStringList); { Alt style VMT link }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- Load: @TStringList.Load; { Object load method }
|
|
|
|
|
- Store: Nil); { No store method }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ TStrListMaker STREAM REGISTRATION }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONST
|
|
|
|
|
- RStrListMaker: TStreamRec = (
|
|
|
|
|
- ObjType: 52; { Register id = 52 }
|
|
|
|
|
- {$IFDEF BP_VMTLink}
|
|
|
|
|
- VmtLink: Ofs(TypeOf(TStrListMaker)^); { BP style VMT link }
|
|
|
|
|
- {$ELSE}
|
|
|
|
|
- VmtLink: TypeOf(TStrListMaker); { Alt style VMT link }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- Load: Nil; { No load method }
|
|
|
|
|
- Store: @TStrListMaker.Store); { Object store method }
|
|
|
|
|
-
|
|
|
|
|
-{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
|
|
|
|
|
- IMPLEMENTATION
|
|
|
|
|
-{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
|
|
|
|
|
-
|
|
|
|
|
-{$IFDEF PROC_Real} { DOS REAL MODE CODE }
|
|
|
|
|
-USES XMSUnit, EMSUnit; { Needs these units }
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
-{$IFNDEF PROC_Real} { NOT DOS REAL CODE }
|
|
|
|
|
- {$DEFINE NewExeFormat} { New format EXE }
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
-{$IFDEF OS_OS2} { OS2 COMPILERS }
|
|
|
|
|
-
|
|
|
|
|
- {$IFDEF PPC_Virtual} { VIRTUAL PASCAL UNITS }
|
|
|
|
|
- USES OS2Base; { Standard unit }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
- {$IFDEF PPC_Speed} { SPEED PASCAL UNITS }
|
|
|
|
|
- USES BseDos, Os2Def; { Standard units }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
- {$IFDEF PPC_BPOS2} { C'T PATCH TO BP UNITS }
|
|
|
|
|
- USES DosTypes, DosProcs; { Standard units }
|
|
|
|
|
-
|
|
|
|
|
- TYPE FILEFINDBUF = TFILEFINDBUF; { Type correction }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-{ PRIVATE TYPE DEFINITIONS }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ FRAME POINTER SIZE SWITCH TYPE }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-TYPE
|
|
|
|
|
- FramePointer = sw_Word; { Frame pointer }
|
|
|
|
|
-
|
|
|
|
|
-{ ******************************* REMARK ****************************** }
|
|
|
|
|
-{ This TYPECAST is serverely COMPILER SPECIFIC if you have a different }
|
|
|
|
|
-{ compiler you will probably have to work this out. }
|
|
|
|
|
-{ ****************************** END REMARK *** Leon de Boer, 08Jul99 * }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ POINTER LOCAl FUNCTION DEFINITION SWITCH }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-TYPE
|
|
|
|
|
- {$IFDEF PPC_VIRTUAL} { VIRTUAL PASCAL }
|
|
|
|
|
- FuncCallPtr = FUNCTION (Param1: Pointer): Boolean;
|
|
|
|
|
- {$ELSE} { OTHER COMPILERS }
|
|
|
|
|
- {$IFNDEF PPC_FPC} { NON FPC COMPILERS }
|
|
|
|
|
- FuncCallPtr = FUNCTION (Param1: Pointer; _EBP: FramePointer): Boolean;
|
|
|
|
|
- {$ELSE} { FPC COMPILER }
|
|
|
|
|
- FuncCallPtr = FUNCTION (_EBP: FramePointer; Param1: Pointer): Boolean;
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-{ PRIVATE INITIALIZED VARIABLES }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ INITIALIZED DOS/DPMI/WIN/NT/OS2 PRIVATE VARIABLES }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONST
|
|
|
|
|
- StreamTypes: PStreamRec = Nil; { Stream types reg }
|
|
|
|
|
-
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-{ PRIVATE INTERNAL ROUTINES }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ PRIVATE INTERNAL DOS/DPMI/WIN/NT/OS2 ROUTINES }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{ ******************************* REMARK ****************************** }
|
|
|
|
|
-{ This routine is serverely COMPILER SPECIFIC if you have a different }
|
|
|
|
|
-{ compiler you will probably have to work this out. }
|
|
|
|
|
-{ ****************************** END REMARK *** Leon de Boer, 08Jul99 * }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ PrevFramePtr -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 08Jul99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION PrevFramePtr: FramePointer; ASSEMBLER;
|
|
|
|
|
-{$IFNDEF PPC_FPC} { NON FPC COMPILER }
|
|
|
|
|
-ASM
|
|
|
|
|
- {$IFDEF BIT_16} { 16 BIT CODE }
|
|
|
|
|
- MOV AX, [BP]; { Load AX from BP }
|
|
|
|
|
- {$IFDEF OS_WINDOWS} { WIN 16 BIT CODE }
|
|
|
|
|
- AND AL, 0FEH; { Windows make even }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- {$IFDEF OS_OS2} { OS2 16 BIT CODE }
|
|
|
|
|
- AND AL, 0FEH; { OS2 make even }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- {$IFDEF BIT_32} { 32 BIT CODE }
|
|
|
|
|
- MOV EAX, [EBP]; { Get previous frame }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
-END;
|
|
|
|
|
-{$ELSE} { FPC COMPILER }
|
|
|
|
|
-ASM
|
|
|
|
|
- {$IFDEF i386} { 80x PROCESSOR }
|
|
|
|
|
- MOVL (%EBP), %EAX; { Get previous frame }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- {$IFDEF m68k} { 68x PROCESSOR }
|
|
|
|
|
- MOVE.L A6, D0; { Get previous frame }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
-END ['EAX'];
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
-{ ******************************* REMARK ****************************** }
|
|
|
|
|
-{ This routine is serverely COMPILER SPECIFIC if you have a different }
|
|
|
|
|
-{ compiler you will probably have to work this out. }
|
|
|
|
|
-{ ****************************** END REMARK *** Leon de Boer, 08Jul99 * }
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ CallPointerLocal -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 08Jul99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{$IFDEF PPC_VIRTUAL} { VIRTUAL COMPILER }
|
|
|
|
|
-FUNCTION CallTestLocal (Func: Pointer; Param1: Pointer): Boolean;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- CallTestLocal := FuncCallPtr(Func)(Param1); { Function call to ptr }
|
|
|
|
|
-END;
|
|
|
|
|
-{$ELSE} { OTHER COMPILERS }
|
|
|
|
|
-FUNCTION CallTestLocal (Func: Pointer; Frame: FramePointer;
|
|
|
|
|
-Param1: Pointer): Boolean;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- {$IFNDEF PPC_FPC} { NON FPC COMPILERS }
|
|
|
|
|
- CallTestLocal := FuncCallPtr(Func)(Param1, Frame); { Function call to ptr }
|
|
|
|
|
- {$ELSE} { FPC COMPILER }
|
|
|
|
|
- CallTestLocal := FuncCallPtr(Func)(Frame, Param1); { Function call to ptr }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
-END;
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ RegisterError -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 08Jul99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TObject.Init;
|
|
|
|
|
-VAR LinkSize: LongInt; Dummy: DummyObject; P: Pointer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- LinkSize := LongInt(@Dummy.Data)-LongInt(@Dummy); { Calc VMT link size }
|
|
|
|
|
- P := Pointer(LongInt(@Self)+LinkSize); { Pointer to data }
|
|
|
|
|
- FillChar(P^, SizeOf(Self)-LinkSize, #0); { Clear data fields }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TObject------------------------------------------------------------------}
|
|
|
|
|
-{ Free -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TObject.Free;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Dispose(PObject(@Self), Done); { Dispose of self }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TObject------------------------------------------------------------------}
|
|
|
|
|
-{ Done -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-DESTRUCTOR TObject.Done;
|
|
|
|
|
-BEGIN { Abstract method }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ TStream OBJECT METHODS }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ Get -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 14Aug98 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TStream.Get: PObject;
|
|
|
|
|
-
|
|
|
|
|
-TYPE LoadPtr = FUNCTION (Var S: TStream; Link: Sw_Word; Iv: Pointer): PObject;
|
|
|
|
|
-
|
|
|
|
|
-VAR ObjType: Word; P: PStreamRec;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- ObjType := 0; { Zero the value }
|
|
|
|
|
- Read(ObjType, 2); { 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
|
|
|
|
|
- {$IFDEF BP_VMTLink} { BP like VMT link }
|
|
|
|
|
- Get := LoadPtr(P^.Load)(Self, P^.VMTLink, Nil) { Call constructor }
|
|
|
|
|
- {$ELSE} { FPC/DELPHI3 VMT link }
|
|
|
|
|
- Get := LoadPtr(P^.Load)(Self,
|
|
|
|
|
- Sw_Word(P^.VMTLink^), Nil) { Call constructor }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- End Else Get := Nil; { Return nil pointer }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ StrRead -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TStream.StrRead: PChar;
|
|
|
|
|
-VAR W: Word; P: PChar;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- W := 0; { Zero the value }
|
|
|
|
|
- Read(W, 2); { Read string length }
|
|
|
|
|
- If (W = 0) Then StrRead := Nil Else Begin { Check for empty }
|
|
|
|
|
- If (MaxAvail >= (W+1)) Then Begin { Check avail memory }
|
|
|
|
|
- GetMem(P, W + 1); { Allocate memory }
|
|
|
|
|
- Read(P[0], W); { Read the data }
|
|
|
|
|
- P[W] := #0; { Terminate with #0 }
|
|
|
|
|
- End Else P := Nil; { Not enough memory }
|
|
|
|
|
- StrRead := P; { PChar returned }
|
|
|
|
|
- End;
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ ReadStr -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Aug98 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TStream.ReadStr: PString;
|
|
|
|
|
-VAR B: Byte; P: PString;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Read(B, 1); { Read string length }
|
|
|
|
|
- If (B > 0) AND (MaxAvail >= (B+1)) Then Begin { Check enough memory }
|
|
|
|
|
- GetMem(P, B + 1); { Allocate memory }
|
|
|
|
|
- {$IFDEF PPC_DELPHI3} { DELPHI 3+ COMPILER }
|
|
|
|
|
- SetLength(P^, B); { Hold new length }
|
|
|
|
|
- {$ELSE} { OTHER COMPILERS }
|
|
|
|
|
- P^[0] := Chr(B); { Hold new length }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- Read(P^[1], B); { Read string data }
|
|
|
|
|
- ReadStr := P; { Return string ptr }
|
|
|
|
|
- End Else ReadStr := Nil;
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ GetPos -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStream.Close;
|
|
|
|
|
-BEGIN { Abstract method }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ Reset -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStream.Reset;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Status := 0; { Clear status }
|
|
|
|
|
- ErrorInfo := 0; { Clear error info }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ Flush -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStream.Flush;
|
|
|
|
|
-BEGIN { Abstract method }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ Truncate -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStream.Truncate;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Abstract; { Abstract error }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ Get -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 14Aug98 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStream.Put (P: PObject);
|
|
|
|
|
-TYPE StorePtr = PROCEDURE (Var S: TStream; AnObject: PObject);
|
|
|
|
|
-
|
|
|
|
|
-VAR ObjType: Word; Link: Sw_Word; Q: PStreamRec; VmtPtr: ^Sw_Word;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- ObjType := 0; { Set objtype to zero }
|
|
|
|
|
- If (P <> Nil) Then Begin { Non nil object }
|
|
|
|
|
- VmtPtr := Pointer(P); { Xfer object to ptr }
|
|
|
|
|
- Link := VmtPtr^; { VMT link }
|
|
|
|
|
- If (Link <> 0) Then Begin { We have a VMT link }
|
|
|
|
|
- Q := StreamTypes; { Current reg list }
|
|
|
|
|
- {$IFDEF BP_VMTLink} { BP like VMT link }
|
|
|
|
|
- While (Q <> Nil) AND (Q^.VMTLink <> Link) { Find link match OR }
|
|
|
|
|
- {$ELSE} { FPC/DELHI3 VMT link }
|
|
|
|
|
- While (Q <> Nil) AND (Sw_Word(Q^.VMTLink^) <>
|
|
|
|
|
- Link) { Find link match OR }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- 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;
|
|
|
|
|
- End;
|
|
|
|
|
- Write(ObjType, 2); { Write object type }
|
|
|
|
|
- If (ObjType <> 0) Then { Registered object }
|
|
|
|
|
- StorePtr(Q^.Store)(Self, P); { Store object }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ Seek -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStream.StrWrite (P: PChar);
|
|
|
|
|
-VAR W: Word; Q: PByteArray;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- W := 0; { Preset zero size }
|
|
|
|
|
- Q := PByteArray(P); { Transfer type }
|
|
|
|
|
- If (Q <> Nil) Then While (Q^[W] <> 0) Do Inc(W); { PChar length }
|
|
|
|
|
- Write(W, SizeOf(W)); { Store length }
|
|
|
|
|
- If (P <> Nil) Then Write(P[0], W); { Write data }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ WriteStr -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStream.Open (OpenMode: Word);
|
|
|
|
|
-BEGIN { Abstract method }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ Error -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 , Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStream.Read (Var Buf; Count: Word);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Abstract; { Abstract error }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ Write -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStream.Write (Var Buf; Count: Word);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Abstract; { Abstract error }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStream------------------------------------------------------------------}
|
|
|
|
|
-{ CopyFrom -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 08Jul99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TDosStream.Init (FileName: FNameStr; Mode: Word);
|
|
|
|
|
-VAR Success: Integer; {$IFDEF OS_OS2} Info: FILEFINDBUF; {$ENDIF}
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Inherited Init; { Call ancestor }
|
|
|
|
|
- {$IFDEF OS_WINDOWS} { WIN/NT CODE }
|
|
|
|
|
- {$IFDEF BIT_16} { 16 BIT WINDOWS CODE }
|
|
|
|
|
- AnsiToOEM(FileName, FName); { Ansi to OEM }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- {$IFDEF BIT_32} { 32 BIT WINDOWS CODE }
|
|
|
|
|
- {$IFNDEF PPC_SPEED} { NON SPEED COMPILER }
|
|
|
|
|
- CharToOEM(FileName, FName); { Ansi to OEM }
|
|
|
|
|
- {$ELSE} { SPEEDSOFT SYBIL 2+ }
|
|
|
|
|
- CharToOEM(CString(FileName), CString(FName)); { Ansi to OEM }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- {$ELSE} { DOS/DPMI/OS2 CODE }
|
|
|
|
|
- FileName := FileName+#0; { Make asciiz }
|
|
|
|
|
- Move(FileName[1], FName, Length(FileName)); { Create asciiz name }
|
|
|
|
|
- {$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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 27Oct99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TDosStream.Read (Var Buf; Count: Word);
|
|
|
|
|
-VAR Success: Integer; Ri, W: Word; Moved: 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 }
|
|
|
|
|
- Ri := 0; { Zero read index }
|
|
|
|
|
- While (Count > 0) AND (Status = stOk) Do Begin { Check status & count }
|
|
|
|
|
- W := Count; { Transfer read size }
|
|
|
|
|
- If (Count > $FFFE) Then W := $FFFE; { Cant read >64K bytes }
|
|
|
|
|
- Success := FileRead(Handle, P^[Ri], W, Moved); { Read from file }
|
|
|
|
|
- If ((Success <> 0) OR (Moved <> W)) { Error was detected }
|
|
|
|
|
- Then Begin
|
|
|
|
|
- Moved := 0; { Clear bytes moved }
|
|
|
|
|
- If (Success <> 0) Then
|
|
|
|
|
- Error(stReadError, Success) { Specific read error }
|
|
|
|
|
- Else Error(stReadError, 0); { Non specific error }
|
|
|
|
|
- End;
|
|
|
|
|
- Inc(Position, Moved); { Adjust position }
|
|
|
|
|
- Inc(Ri, Moved); { Adjust read index }
|
|
|
|
|
- Dec(Count, Moved); { Adjust count left }
|
|
|
|
|
- End;
|
|
|
|
|
- If (Count <> 0) Then FillChar(P^[Ri], Count, #0); { Error clear buffer }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TDosStream---------------------------------------------------------------}
|
|
|
|
|
-{ Write -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 27Oct99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TDosStream.Write (Var Buf; Count: Word);
|
|
|
|
|
-VAR Success: Integer; W, Wi: Word; Moved: Sw_Word; P: PByteArray;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (Handle = -1) Then Error(stWriteError, 103); { File not open }
|
|
|
|
|
- P := @Buf; { Transfer address }
|
|
|
|
|
- Wi := 0; { Zero write index }
|
|
|
|
|
- While (Count > 0) AND (Status = stOk) Do Begin { Check status & count }
|
|
|
|
|
- W := Count; { Transfer read size }
|
|
|
|
|
- If (Count > $FFFE) Then W := $FFFE; { Cant read >64K bytes }
|
|
|
|
|
- Success := FileWrite(Handle, P^[Wi], W, Moved); { Write to file }
|
|
|
|
|
- If ((Success <> 0) OR (Moved <> W)) { Error was detected }
|
|
|
|
|
- Then Begin
|
|
|
|
|
- Moved := 0; { Clear bytes moved }
|
|
|
|
|
- If (Success <> 0) Then
|
|
|
|
|
- Error(stWriteError, Success) { Specific write error }
|
|
|
|
|
- Else Error(stWriteError, 0); { Non specific error }
|
|
|
|
|
- End;
|
|
|
|
|
- Inc(Position, Moved); { Adjust position }
|
|
|
|
|
- Inc(Wi, Moved); { Adjust write index }
|
|
|
|
|
- Dec(Count, Moved); { 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/NT/OS2 - Updated 17May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TBufStream.Init (FileName: FNameStr; Mode, Size: Word);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Inherited Init(FileName, Mode); { Call ancestor }
|
|
|
|
|
- If (Size <> 0) AND (MaxAvail >= Size) Then Begin
|
|
|
|
|
- GetMem(Buffer, Size); { Allocate buffer }
|
|
|
|
|
- BufSize := Size; { Hold buffer size }
|
|
|
|
|
- End;
|
|
|
|
|
- If (Buffer = Nil) Then Error(stInitError, 0); { Buffer allocate fail }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TBufStream---------------------------------------------------------------}
|
|
|
|
|
-{ Done -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 17May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TBufStream.Close;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Flush; { Flush the buffer }
|
|
|
|
|
- Inherited Close; { Call ancestor }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TBufStream---------------------------------------------------------------}
|
|
|
|
|
-{ Flush -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 17May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TBufStream.Truncate;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Flush; { Flush buffer }
|
|
|
|
|
- Inherited Truncate; { Truncate file }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TBufStream---------------------------------------------------------------}
|
|
|
|
|
-{ Seek -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 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/NT/OS2 - Updated 27Oct99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TBufStream.Read (Var Buf; Count: Word);
|
|
|
|
|
-VAR Success: Integer; W, Bw, Ri: Word; Br: 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 }
|
|
|
|
|
- Ri := 0; { Zero read index }
|
|
|
|
|
- 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, Br); { Read from file }
|
|
|
|
|
- If ((Success <> 0) OR (Bw <> Br)) 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 := Bw; { 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^[Ri], W); { Data from buffer }
|
|
|
|
|
- Dec(Count, W); { Reduce count }
|
|
|
|
|
- Inc(BufPtr, W); { Advance buffer ptr }
|
|
|
|
|
- Inc(Ri, W); { Increase read index }
|
|
|
|
|
- Inc(Position, W); { Advance position }
|
|
|
|
|
- End;
|
|
|
|
|
- End;
|
|
|
|
|
- If (Status <> stOk) AND (Count > 0) Then
|
|
|
|
|
- FillChar(P^[Ri], Count, #0); { Error clear buffer }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TBufStream---------------------------------------------------------------}
|
|
|
|
|
-{ Write -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 27Oct99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TBufStream.Write (Var Buf; Count: Word);
|
|
|
|
|
-VAR Success: Integer; W, Wi: Word; Bw: 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 }
|
|
|
|
|
- Wi := 0; { Zero write index }
|
|
|
|
|
- While (Count > 0) AND (Status = stOk) Do Begin { Check status & count }
|
|
|
|
|
- If (BufPtr = BufSize) Then Begin { Buffer is full }
|
|
|
|
|
- Success := FileWrite(Handle, Buffer^, BufSize,
|
|
|
|
|
- Bw); { Write to file }
|
|
|
|
|
- If (Success <> 0) OR (Bw <> 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^[Wi], Buffer^[BufPtr], W); { Data to buffer }
|
|
|
|
|
- Dec(Count, W); { Reduce count }
|
|
|
|
|
- Inc(BufPtr, W); { Advance buffer ptr }
|
|
|
|
|
- Inc(Wi, W); { Advance write index }
|
|
|
|
|
- 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/NT/OS2 - Updated 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/NT/OS2 - Updated 19May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-DESTRUCTOR TMemoryStream.Done;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- ChangeListSize(0); { Release all memory }
|
|
|
|
|
- Inherited Done; { Call ancestor }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TMemoryStream------------------------------------------------------------}
|
|
|
|
|
-{ Truncate -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 19May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TMemoryStream.Read (Var Buf; Count: Word);
|
|
|
|
|
-VAR W, CurBlock, BlockPos, Op: Word; Li: LongInt; P, Q: PByteArray;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (Position + Count > StreamSize) Then { Insufficient data }
|
|
|
|
|
- Error(stReadError, 0); { Read beyond end!!! }
|
|
|
|
|
- P := @Buf; { Transfer address }
|
|
|
|
|
- Op := 0; { Zero offset position }
|
|
|
|
|
- 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 := BlkList^[CurBlock]; { Calc pointer }
|
|
|
|
|
- Move(Q^[BlockPos], P^[Op], W); { Move data to buffer }
|
|
|
|
|
- Inc(Position, W); { Adjust position }
|
|
|
|
|
- Inc(Op, W); { Increase offset }
|
|
|
|
|
- Dec(Count, W); { Adjust count left }
|
|
|
|
|
- End;
|
|
|
|
|
- If (Count <> 0) Then FillChar(P^[Op], Count, #0); { Error clear buffer }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TMemoryStream------------------------------------------------------------}
|
|
|
|
|
-{ Write -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 19May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TMemoryStream.Write (Var Buf; Count: Word);
|
|
|
|
|
-VAR W, CurBlock, BlockPos, Op: 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 }
|
|
|
|
|
- Op := 0; { Zero offset position }
|
|
|
|
|
- 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 := BlkList^[CurBlock]; { Calc pointer }
|
|
|
|
|
- Move(P^[Op], Q^[BlockPos], W); { Transfer data }
|
|
|
|
|
- Inc(Position, W); { Adjust position }
|
|
|
|
|
- Inc(Op, W); { Increase offset }
|
|
|
|
|
- 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/NT/OS2 - Updated 19May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TMemoryStream.ChangeListSize (ALimit: Word): Boolean;
|
|
|
|
|
-VAR I, W, Bas: Word; 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 }
|
|
|
|
|
- Bas := ALimit * SizeOf(Pointer); { Block array size }
|
|
|
|
|
- If (MaxAvail > Bas) Then Begin
|
|
|
|
|
- GetMem(P, Bas); { Allocate memory }
|
|
|
|
|
- FillChar(P^, Bas, #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^, Bas); { 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, Bas); { 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;
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ TEmsStream OBJECT METHODS }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{--TEmsStream---------------------------------------------------------------}
|
|
|
|
|
-{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Feb97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TEmsStream.Init (MinSize, MaxSize: LongInt);
|
|
|
|
|
-{$IFDEF PROC_Real} { DOS REAL MODE CODE }
|
|
|
|
|
-VAR Success: Integer; MinPg, MaxPg: Word;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Inherited Init; { Call ancestor }
|
|
|
|
|
- If (EMS_MemAvail >= MaxSize) Then Begin { Sufficient memory }
|
|
|
|
|
- If (MaxSize = 0) Then MaxPg := 1 Else { At least one page }
|
|
|
|
|
- MaxPg := (MaxSize + 16383) DIV 16384; { Max pages needed }
|
|
|
|
|
- If (MinSize = 0) Then MinPg := 1 Else { At least one page }
|
|
|
|
|
- MinPg := (MinSize + 16383) DIV 16384; { Min pages needed }
|
|
|
|
|
- Handle := EMS_GetMem(MaxPg); { Allocate EMS pages }
|
|
|
|
|
- If (Handle <> 0) Then Begin
|
|
|
|
|
- Success := 0; { Preset success }
|
|
|
|
|
- PageCount := MaxPg; { Pages used }
|
|
|
|
|
- If (MaxPg <> MinPg) Then { Sizes differ }
|
|
|
|
|
- If (EMS_ResizeMem(MinPg, Handle)=0) { Resize to minimum }
|
|
|
|
|
- Then PageCount := MinPg; { Hold new page count }
|
|
|
|
|
- { * REMARK * - Do not shorten this, result can be > 64K }
|
|
|
|
|
- MemSize := PageCount;
|
|
|
|
|
- MemSize := MemSize * 16384;
|
|
|
|
|
- { * REMARK END * - Leon de Boer }
|
|
|
|
|
- End Else Success := 403; { Failed to allocate }
|
|
|
|
|
- End Else Success := 400; { Insufficent EMS }
|
|
|
|
|
- If (Handle = 0) OR (Success <> 0) Then { EMS failed }
|
|
|
|
|
- Error(stInitError, Success); { Call stream error }
|
|
|
|
|
-END;
|
|
|
|
|
-{$ELSE} { ALL OTHER OS SYSTEMS }
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Inherited Init(MaxSize, 16384); { For compatability }
|
|
|
|
|
-END;
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
-{$IFDEF PROC_Real} { DOS REAL MODE CODE }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-{ TEMSStream DOS REAL MODE ONLY METHODS }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-
|
|
|
|
|
-{--TEmsStream---------------------------------------------------------------}
|
|
|
|
|
-{ Done -> Platforms DOS REAL MODE - Updated!28Feb97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-DESTRUCTOR TEmsStream.Done;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (Handle <> 0) Then EMS_FreeMem(Handle); { Release EMS blocks }
|
|
|
|
|
- Inherited Done; { Call ancestor }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TEmsStream---------------------------------------------------------------}
|
|
|
|
|
-{ Truncate -> Platforms DOS REAL MODE - Updated 28Feb97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TEmsStream.Truncate;
|
|
|
|
|
-VAR Success: Integer; W: Word;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (Status = stOk) Then Begin { Check status okay }
|
|
|
|
|
- If (Position = 0) Then W := 1 Else { At least one page }
|
|
|
|
|
- W := (Position + 16383) DIV 16384; { Pages to use }
|
|
|
|
|
- Success := 0; { Preset success }
|
|
|
|
|
- If (W <> PageCount) Then { Sizes differ }
|
|
|
|
|
- If (EMS_ResizeMem(W, Handle)=0) Then { Resize to this }
|
|
|
|
|
- PageCount := W Else Success := 401; { Adjust blocks used }
|
|
|
|
|
- If (Success = 0) Then StreamSize := Position { Adjust size }
|
|
|
|
|
- Else Error(stError, Success); { Identify error }
|
|
|
|
|
- End;
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TEmsStream---------------------------------------------------------------}
|
|
|
|
|
-{ Read -> Platforms DOS REAL MODE - Updated 14Nov00 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TEmsStream.Read (Var Buf; Count: Word);
|
|
|
|
|
-VAR Success: Integer; W, Ri: Word; P: PByteArray;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (Position + Count > StreamSize) Then { Insufficient data }
|
|
|
|
|
- Error(stReadError, 0); { Read beyond end!!! }
|
|
|
|
|
- If (Handle = 0) Then Error(stReadError, 403); { EMS not available }
|
|
|
|
|
- P := @Buf; { Transfer address }
|
|
|
|
|
- Ri := 0; { Zero read index }
|
|
|
|
|
- While (Count > 0) AND (Status = stOk) Do Begin { Check status & count }
|
|
|
|
|
- W := Count; { Transfer read size }
|
|
|
|
|
- If (Count > $FFFE) Then W := $FFFE; { Cant read >64K bytes }
|
|
|
|
|
- Success := EMS_MoveMem(LongInt(@P^[Ri]), 0,
|
|
|
|
|
- Position, Handle, W); { Move the data }
|
|
|
|
|
- If (Success <> 0) Then Begin { Error was detected }
|
|
|
|
|
- W := 0; { Clear bytes moved }
|
|
|
|
|
- Error(stReadError, Success) { Specific read esror }
|
|
|
|
|
- End;
|
|
|
|
|
- Inc(Position, W); { Adjust position }
|
|
|
|
|
- Inc(Ri, W); { Adjust read index }
|
|
|
|
|
- Dec(Count, W); { Adjust count left }
|
|
|
|
|
- End;
|
|
|
|
|
- If (Count <> 0) Then FillChar(P^[Ri], Count, #0); { Error clear buffer }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TEmsStream---------------------------------------------------------------}
|
|
|
|
|
-{ Write -> Platforms DOS REAL MODE - Updated 14Nov00 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TEmsStream.Write (Var Buf; Count: Word);
|
|
|
|
|
-VAR Success: Integer; W, Wi: Word; P: PByteArray;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (Position + Count > MemSize) Then Begin { Expansion needed }
|
|
|
|
|
- If (Position + Count = 0) Then W := 1 Else { At least one page }
|
|
|
|
|
- W := (Position+Count + 16383) DIV 16384; { Pages needed }
|
|
|
|
|
- If (EMS_ResizeMem(W, Handle)=0) Then Begin { Resize memory }
|
|
|
|
|
- PageCount := W; { Adjust page count }
|
|
|
|
|
- { * REMARK * - Do not shorten this, result can be > 64K }
|
|
|
|
|
- MemSize := PageCount;
|
|
|
|
|
- MemSize := MemSize * 1024; { New memory size }
|
|
|
|
|
- { * REMARK END * - Leon de Boer }
|
|
|
|
|
- End Else Error(stWriteError, 0); { We have an error }
|
|
|
|
|
- End;
|
|
|
|
|
- If (Handle = 0) Then Error(stWriteError, 403); { EMS not available }
|
|
|
|
|
- P := @Buf; { Transfer address }
|
|
|
|
|
- Wi := 0; { Zero write index }
|
|
|
|
|
- While (Count > 0) AND (Status = stOk) Do Begin { Check status & count }
|
|
|
|
|
- W := Count; { Transfer read size }
|
|
|
|
|
- If (Count > $FFFE) Then W := $FFFE; { Cant read >64K bytes }
|
|
|
|
|
- Success := EMS_MoveMem(Position, Handle,
|
|
|
|
|
- LongInt(@P^[Wi]), 0, W); { Move the memory }
|
|
|
|
|
- If (Success <> 0) Then Begin { Error was detected }
|
|
|
|
|
- W := 0; { Clear bytes moved }
|
|
|
|
|
- Error(stWriteError, Success); { Specific write error }
|
|
|
|
|
- End;
|
|
|
|
|
- Inc(Position, W); { Adjust position }
|
|
|
|
|
- Inc(Wi, W); { Adjust write index }
|
|
|
|
|
- Dec(Count, W); { Adjust count left }
|
|
|
|
|
- If (Position > StreamSize) Then { File expanded }
|
|
|
|
|
- StreamSize := Position; { Adjust stream size }
|
|
|
|
|
- End;
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ TXmsStream OBJECT ANCESTOR }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{--TXmsStream---------------------------------------------------------------}
|
|
|
|
|
-{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Feb97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TXmsStream.Init (MinSize, MaxSize: LongInt);
|
|
|
|
|
-{$IFDEF PROC_Real} { DOS REAL MODE CODE }
|
|
|
|
|
-VAR Success: Integer; MinBlk, MaxBlk: Word;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Inherited Init; { Call ancestor }
|
|
|
|
|
- If (XMS_MemAvail >= MaxSize) Then Begin { Sufficient memory }
|
|
|
|
|
- If (MaxSize = 0) Then MaxBlk := 1 Else { At least one block }
|
|
|
|
|
- MaxBlk := (MaxSize + 1023) DIV 1024; { Max blocks needed }
|
|
|
|
|
- If (MinSize = 0) Then MinBlk := 1 Else { At least one block }
|
|
|
|
|
- MinBlk := (MinSize + 1023) DIV 1024; { Min blocks needed }
|
|
|
|
|
- Handle := XMS_GetMem(MaxBlk); { Allocate XMS blocks }
|
|
|
|
|
- If (Handle <> 0) Then Begin
|
|
|
|
|
- Success := 0; { Preset success }
|
|
|
|
|
- BlocksUsed := MaxBlk; { Blocks used }
|
|
|
|
|
- If (MaxBlk <> MinBlk) Then { Sizes differ }
|
|
|
|
|
- If (XMS_ResizeMem(MaxBlk, MinBlk, Handle)=0) { Resize to minimum }
|
|
|
|
|
- Then BlocksUsed := MinBlk; { Hold block size }
|
|
|
|
|
- { * REMARK * - Do not shorten this, result can be > 64K }
|
|
|
|
|
- MemSize := BlocksUsed;
|
|
|
|
|
- MemSize := MemSize * 1024;
|
|
|
|
|
- { * REMARK END * - Leon de Boer }
|
|
|
|
|
- End Else Success := 303; { Failed to allocate }
|
|
|
|
|
- End Else Success := 300; { Insufficent XMS }
|
|
|
|
|
- If (Handle = 0) OR (Success <> 0) Then { XMS failed }
|
|
|
|
|
- Error(stInitError, Success); { Call stream error }
|
|
|
|
|
-END;
|
|
|
|
|
-{$ELSE} { ALL OTHER OP SYSTEMS }
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Inherited Init(MaxSize, 16384); { For compatability }
|
|
|
|
|
-END;
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
-{$IFDEF PROC_Real} { DOS REAL MODE CODE }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-{ TXMSStream DOS REAL MODE ONLY METHODS }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-
|
|
|
|
|
-{--TXmsStream---------------------------------------------------------------}
|
|
|
|
|
-{ Done -> Platforms DOS REAL MODE - Updated 28Feb97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-DESTRUCTOR TXmsStream.Done;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (Handle <> 0) Then XMS_FreeMem(Handle); { Release XMS blocks }
|
|
|
|
|
- Inherited Done; { Call ancestor }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TXmsStream---------------------------------------------------------------}
|
|
|
|
|
-{ Truncate -> Platforms DOS REAL MODE - Updated 28Feb97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TXmsStream.Truncate;
|
|
|
|
|
-VAR Success: Integer; W: Word;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (Status = stOk) Then Begin { Check status okay }
|
|
|
|
|
- If (Position = 0) Then W := 1 Else { At least 1 block }
|
|
|
|
|
- W := (Position + 1023) DIV 1024; { Blocks to use }
|
|
|
|
|
- Success := 0; { Preset success }
|
|
|
|
|
- If (W <> BlocksUsed) Then { Sizes differ }
|
|
|
|
|
- If (XMS_ResizeMem(BlocksUsed, W, Handle)=0) { Resize to this }
|
|
|
|
|
- Then Begin
|
|
|
|
|
- BlocksUsed := W; { Adjust blocks used }
|
|
|
|
|
- { * REMARK * - Do not shorten this, result can be > 64K }
|
|
|
|
|
- MemSize := BlocksUsed; { Blocks used }
|
|
|
|
|
- MemSize := MemSize * 1024; { Mult by block size }
|
|
|
|
|
- { * REMARK END * - Leon de Boer }
|
|
|
|
|
- End Else Success := 301; { Resize failed }
|
|
|
|
|
- If (Success = 0) Then StreamSize := Position { Adjust size }
|
|
|
|
|
- Else Error(stError, Success); { Identify error }
|
|
|
|
|
- End;
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TXmsStream---------------------------------------------------------------}
|
|
|
|
|
-{ Read -> Platforms DOS REAL MODE - Updated 14Nov00 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TXmsStream.Read (Var Buf; Count: Word);
|
|
|
|
|
-VAR Success: Integer; W, Ri: Word; P: PByteArray;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (Position + Count > StreamSize) Then { Insufficient data }
|
|
|
|
|
- Error(stReadError, 0); { Read beyond end!!! }
|
|
|
|
|
- If (Handle = 0) Then Error(stReadError, 303); { XMS not available }
|
|
|
|
|
- P := @Buf; { Transfer address }
|
|
|
|
|
- Ri := 0; { Zero read index }
|
|
|
|
|
- While (Count > 0) AND (Status = stOk) Do Begin { Check status & count }
|
|
|
|
|
- W := Count; { Transfer read size }
|
|
|
|
|
- If (Count > $FFFE) Then W := $FFFE; { Cant read >64K bytes }
|
|
|
|
|
- Success := XMS_MoveMem(LongInt(@P^[Ri]), 0,
|
|
|
|
|
- Position, Handle, W); { Move the data }
|
|
|
|
|
- If (Success <> 0) Then Begin { Error was detected }
|
|
|
|
|
- W := 0; { Clear bytes moved }
|
|
|
|
|
- Error(stReadError, Success) { Specific read error }
|
|
|
|
|
- End;
|
|
|
|
|
- Inc(Position, W); { Adjust position }
|
|
|
|
|
- Inc(Ri, W); { Adjust read index }
|
|
|
|
|
- Dec(Count, W); { Adjust count left }
|
|
|
|
|
- End;
|
|
|
|
|
- If (Count <> 0) Then FillChar(P^[Ri], Count, #0); { Error clear buffer }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TXmsStream---------------------------------------------------------------}
|
|
|
|
|
-{ Write -> Platforms DOS REAL MODE - Updated 14Nov00 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TXmsStream.Write (Var Buf; Count: Sw_Word);
|
|
|
|
|
-VAR Success: Integer; W, Wi: Word; P: PByteArray;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- { * REMARK * - Because XMS must move even bytes we expand if within }
|
|
|
|
|
- { one byte of allocated size so we can read/write the }
|
|
|
|
|
- { last byte with an even access using a dummy end byte. }
|
|
|
|
|
- { * REMARK * - Leon de Boer }
|
|
|
|
|
- If (Position + Count > (MemSize-1)) Then Begin { Expansion needed }
|
|
|
|
|
- If (Position + Count = 0) Then W := 1 Else Begin { At least one }
|
|
|
|
|
- W := (Position + Count + 1023) DIV 1024; { Blocks needed }
|
|
|
|
|
- If ((Position + Count) MOD 1024 = 0) Then
|
|
|
|
|
- Inc(W); { Fix for even access }
|
|
|
|
|
- End;
|
|
|
|
|
- If (XMS_ResizeMem(BlocksUsed, W, Handle)=0) { Resize memory }
|
|
|
|
|
- Then Begin
|
|
|
|
|
- BlocksUsed := W; { Adjust block count }
|
|
|
|
|
- { * REMARK * - Do not shorten this, result can be > 64K }
|
|
|
|
|
- MemSize := BlocksUsed;
|
|
|
|
|
- MemSize := MemSize * 1024; { New memory size }
|
|
|
|
|
- { * REMARK END * - Leon de Boer }
|
|
|
|
|
- End Else Error(stWriteError, 0); { We have an error }
|
|
|
|
|
- End;
|
|
|
|
|
- If (Handle = 0) Then Error(stWriteError, 303); { XMS not available }
|
|
|
|
|
- P := @Buf; { Transfer address }
|
|
|
|
|
- Wi := 0; { Zero write index }
|
|
|
|
|
- While (Count > 0) AND (Status = stOk) Do Begin { Check status & count }
|
|
|
|
|
- W := Count; { Transfer read size }
|
|
|
|
|
- If (Count > $FFFE) Then W := $FFFE; { Cant read >64K bytes }
|
|
|
|
|
- Success := XMS_MoveMem(Position, Handle,
|
|
|
|
|
- LongInt(@P^[Wi]), 0, W); { Move the memory }
|
|
|
|
|
- If (Success <> 0) Then Begin { Error was detected }
|
|
|
|
|
- W := 0; { Clear bytes moved }
|
|
|
|
|
- Error(stWriteError, Success); { Specific write error }
|
|
|
|
|
- End;
|
|
|
|
|
- Inc(Position, W); { Adjust position }
|
|
|
|
|
- Inc(Wi, W); { Adjust write index }
|
|
|
|
|
- Dec(Count, W); { Adjust count left }
|
|
|
|
|
- If (Position > StreamSize) Then { File expanded }
|
|
|
|
|
- StreamSize := Position; { Adjust stream size }
|
|
|
|
|
- End;
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ TCollection OBJECT METHODS }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TCollection.Init (ALimit, ADelta: Integer);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Inherited Init; { Call ancestor }
|
|
|
|
|
- Delta := ADelta; { Set increment }
|
|
|
|
|
- SetLimit(ALimit); { Set limit }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TCollection.Load (Var S: TStream);
|
|
|
|
|
-VAR C, I: Integer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- S.Read(Count, 2); { Read count }
|
|
|
|
|
- S.Read(Limit, 2); { Read limit }
|
|
|
|
|
- S.Read(Delta, 2); { 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-DESTRUCTOR TCollection.Done;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- FreeAll; { Free all items }
|
|
|
|
|
- SetLimit(0); { Release all memory }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ At -> Platforms DOS/DPMI/WIN/NT/OS2 -Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TCollection.At (Index: 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TCollection.IndexOf (Item: Pointer): Integer;
|
|
|
|
|
-VAR I: 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TCollection.GetItem (Var S: TStream): Pointer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- GetItem := S.Get; { Item off stream }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ LastThat -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 08Jul99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TCollection.LastThat (Test: Pointer): Pointer;
|
|
|
|
|
-VAR I: Integer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- For I := Count DownTo 1 Do Begin { Down from last item }
|
|
|
|
|
- {$IFDEF PPC_VIRTUAL} { VIRTUAL COMPILER }
|
|
|
|
|
- If CallTestLocal(Test, Items^[I-1]) { Test each item }
|
|
|
|
|
- {$ELSE} { OTHER COMPILERS }
|
|
|
|
|
- If CallTestLocal(Test, PrevFramePtr, Items^[I-1]){ Test each item }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- Then Begin { Test each item }
|
|
|
|
|
- LastThat := Items^[I-1]; { Return successful }
|
|
|
|
|
- Exit; { Now exit }
|
|
|
|
|
- End;
|
|
|
|
|
- End;
|
|
|
|
|
- LastThat := Nil; { None passed test }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ FirstThat -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 08Jul99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TCollection.FirstThat (Test: Pointer): Pointer;
|
|
|
|
|
-VAR I: Integer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- For I := 1 To Count Do Begin { Up from first item }
|
|
|
|
|
- {$IFDEF PPC_VIRTUAL} { VIRTUAL COMPILER }
|
|
|
|
|
- If CallTestLocal(Test, Items^[I-1]) { Test each item }
|
|
|
|
|
- {$ELSE} { OTHER COMPILERS }
|
|
|
|
|
- If CallTestLocal(Test, PrevFramePtr, Items^[I-1]){ Test each item }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- Then Begin { Test each item }
|
|
|
|
|
- FirstThat := Items^[I-1]; { Return successful }
|
|
|
|
|
- Exit; { Now exit }
|
|
|
|
|
- End;
|
|
|
|
|
- End;
|
|
|
|
|
- FirstThat := Nil; { None passed test }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ Pack -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.Pack;
|
|
|
|
|
-VAR I, J: 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/NT/OS2 - Updated!22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.FreeAll;
|
|
|
|
|
-VAR I: 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.DeleteAll;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Count := 0; { Clear item count }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ Free -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.Insert (Item: Pointer);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- AtInsert(Count, Item); { Insert item }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ Delete -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.Delete (Item: Pointer);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- AtDelete(IndexOf(Item)); { Delete from list }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ AtFree -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.AtFree (Index: 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/NT/OS2 - Updated 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.AtDelete (Index: 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/NT/OS2 - Updated 08Jul99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.ForEach (Action: Pointer);
|
|
|
|
|
-VAR I: Integer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- For I := 1 To Count Do { Up from first item }
|
|
|
|
|
- {$IFDEF PPC_VIRTUAL} { VIRTUAL COMPILER }
|
|
|
|
|
- CallTestLocal(Action, Items^[I-1]); { Call with each item }
|
|
|
|
|
- {$ELSE} { OTHER COMPILERS }
|
|
|
|
|
- CallTestLocal(Action, PrevFramePtr, Items^[I-1]); { Call with each item }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ SetLimit -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.SetLimit (ALimit: Integer);
|
|
|
|
|
-VAR AItems: PItemList;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (ALimit < Count) Then ALimit := Count; { Stop underflow }
|
|
|
|
|
- If (ALimit > MaxCollectionSize) Then
|
|
|
|
|
- ALimit := MaxCollectionSize; { Stop overflow }
|
|
|
|
|
- {$IFNDEF PPC_SPEED} { NON SPEED COMPILERS }
|
|
|
|
|
- If (MaxAvail < (ALimit*SizeOf(Pointer))) Then { Check enough memory }
|
|
|
|
|
- ALimit := Limit; { Insufficient memory }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.Error (Code, Info: Integer);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- RunError(212 - Code); { Run error }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ AtPut -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.AtPut (Index: 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/NT/OS2 - Updated 28May99 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.AtInsert (Index: Integer; Item: Pointer);
|
|
|
|
|
-VAR I: 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-1 DownTo Index Do { Start from back }
|
|
|
|
|
- Items^[I+1] := Items^[I]; { 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TCollection.Store (Var S: TStream);
|
|
|
|
|
-
|
|
|
|
|
- PROCEDURE DoPutItem (P: Pointer); {$IFNDEF FPC} FAR;{$ENDIF}
|
|
|
|
|
- BEGIN
|
|
|
|
|
- PutItem(S, P); { Put item on stream }
|
|
|
|
|
- END;
|
|
|
|
|
-
|
|
|
|
|
-BEGIN
|
|
|
|
|
- S.Write(Count, 2); { Write count }
|
|
|
|
|
- S.Write(Limit, 2); { Write limit }
|
|
|
|
|
- S.Write(Delta, 2); { Write delta }
|
|
|
|
|
- ForEach(@DoPutItem); { Each item to stream }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TCollection--------------------------------------------------------------}
|
|
|
|
|
-{ PutItem -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TSortedCollection.Init (ALimit, ADelta: Integer);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Inherited Init(ALimit, ADelta); { Call ancestor }
|
|
|
|
|
- Duplicates := False; { Clear flag }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TSortedCollection--------------------------------------------------------}
|
|
|
|
|
-{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TSortedCollection.Load (Var S: TStream);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Inherited Load(S); { Call ancestor }
|
|
|
|
|
- S.Read(Duplicates, 1); { Read duplicate flag }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TSortedCollection--------------------------------------------------------}
|
|
|
|
|
-{ KeyOf -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TSortedCollection.KeyOf (Item: Pointer): Pointer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- KeyOf := Item; { Return item as key }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TSortedCollection--------------------------------------------------------}
|
|
|
|
|
-{ IndexOf -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TSortedCollection.IndexOf (Item: Pointer): Integer;
|
|
|
|
|
-VAR I, J: 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TSortedCollection.Compare (Key1, Key2: Pointer): Integer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Abstract; { Abstract method }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TSortedCollection--------------------------------------------------------}
|
|
|
|
|
-{ Search -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TSortedCollection.Search (Key: Pointer; Var Index: Integer): Boolean;
|
|
|
|
|
-VAR L, H, I, C: 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TSortedCollection.Insert (Item: Pointer);
|
|
|
|
|
-VAR I: 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TSortedCollection.Store (Var S: TStream);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- TCollection.Store(S); { Call ancestor }
|
|
|
|
|
- S.Write(Duplicates, 1); { Write duplicate flag }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ TStringCollection OBJECT METHODS }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{--TStringCollection--------------------------------------------------------}
|
|
|
|
|
-{ GetItem -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TStringCollection.GetItem (Var S: TStream): Pointer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- GetItem := S.ReadStr; { Get new item }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStringCollection--------------------------------------------------------}
|
|
|
|
|
-{ Compare -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 21Aug97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TStringCollection.Compare (Key1, Key2: Pointer): 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/NT/OS2 - Updated 22May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStringCollection.FreeItem (Item: Pointer);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- DisposeStr(Item); { Dispose item }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStringCollection--------------------------------------------------------}
|
|
|
|
|
-{ PutItem -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 23May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TStrCollection.Compare (Key1, Key2: Pointer): Integer;
|
|
|
|
|
-VAR I, J: 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/NT/OS2 - Updated 23May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TStrCollection.GetItem (Var S: TStream): Pointer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- GetItem := S.StrRead; { Get string item }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStrCollection-----------------------------------------------------------}
|
|
|
|
|
-{ FreeItem -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 23May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStrCollection.FreeItem (Item: Pointer);
|
|
|
|
|
-VAR I: 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/NT/OS2 - Updated 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/NT/OS2 - Updated 23May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TUnSortedStrCollection.Insert (Item: Pointer);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- AtInsert(Count, Item); { Insert - NO sorting }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ TResourceItem RECORD }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-TYPE
|
|
|
|
|
- TResourceItem = PACKED 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/NT/OS2 - Updated 24May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TResourceCollection.KeyOf (Item: Pointer): Pointer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- KeyOf := @PResourceItem(Item)^.Key; { Pointer to key }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TResourceCollection------------------------------------------------------}
|
|
|
|
|
-{ GetItem -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 24May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TResourceCollection.GetItem (Var S: TStream): Pointer;
|
|
|
|
|
-VAR B: Byte; Pos, Size: LongInt; P: PResourceItem; Ts: String;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- S.Read(Pos, 4); { Read position }
|
|
|
|
|
- S.Read(Size, 4); { Read size }
|
|
|
|
|
- S.Read(B, 1); { Read key length }
|
|
|
|
|
- If (MaxAvail > (SizeOf(TResourceItem)-SizeOf(Ts)))
|
|
|
|
|
- Then Begin
|
|
|
|
|
- GetMem(P, B + (SizeOf(TResourceItem) -
|
|
|
|
|
- SizeOf(Ts) + 1)); { Allocate min memory }
|
|
|
|
|
- P^.Posn := Pos; { Xfer position }
|
|
|
|
|
- P^.Size := Size; { Xfer size }
|
|
|
|
|
- {$IFDEF PPC_DELPHI3} { DELPHI 3+ COMPILER }
|
|
|
|
|
- SetLength(P^.Key, B); { Xfer string length }
|
|
|
|
|
- {$ELSE} { OTHER COMPILERS }
|
|
|
|
|
- P^.Key[0] := Chr(B); { Xfer string length }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- S.Read(P^.Key[1], B); { Xfer string data }
|
|
|
|
|
- End Else P := Nil; { Insufficient memory }
|
|
|
|
|
- GetItem := P; { Return pointer }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TResourceCollection------------------------------------------------------}
|
|
|
|
|
-{ FreeItem -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 24May96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TResourceCollection.FreeItem (Item: Pointer);
|
|
|
|
|
-VAR S: String;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (Item <> Nil) Then FreeMem(Item,
|
|
|
|
|
- SizeOf(TResourceItem) - SizeOf(S) +
|
|
|
|
|
- Length(PResourceItem(Item)^.Key) + 1); { Release memory }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TResourceCollection------------------------------------------------------}
|
|
|
|
|
-{ PutItem -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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 = PACKED 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;
|
|
|
|
|
-{$ENDIF}
|
|
|
|
|
-
|
|
|
|
|
- THeader = PACKED RECORD
|
|
|
|
|
- Signature: Word;
|
|
|
|
|
- Case Integer Of
|
|
|
|
|
- 0: (
|
|
|
|
|
- LastCount: Word;
|
|
|
|
|
- PageCount: Word;
|
|
|
|
|
- ReloCount: Word);
|
|
|
|
|
- 1: (
|
|
|
|
|
- InfoType: Word;
|
|
|
|
|
- InfoSize: Longint);
|
|
|
|
|
- End;
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ TResourceFile OBJECT METHODS }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{--TResourceFile------------------------------------------------------------}
|
|
|
|
|
-{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 18Jun96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TResourceFile.Init(AStream: PStream);
|
|
|
|
|
-VAR Found, Stop: Boolean; Header: THeader;
|
|
|
|
|
- {$IFDEF NewExeFormat} ExeHeader: TExeHeader; {$ENDIF}
|
|
|
|
|
-BEGIN
|
|
|
|
|
- TObject.Init; { Initialize object }
|
|
|
|
|
- Found := False; { Preset false }
|
|
|
|
|
- If (AStream <> Nil) Then Begin
|
|
|
|
|
- Stream := AStream; { Hold stream }
|
|
|
|
|
- BasePos := Stream^.GetPos; { Get position }
|
|
|
|
|
- Repeat
|
|
|
|
|
- Stop := True; { Preset stop }
|
|
|
|
|
- If (BasePos <= Stream^.GetSize-SizeOf(THeader))
|
|
|
|
|
- Then Begin { Valid file header }
|
|
|
|
|
- Stream^.Seek(BasePos); { Seek to position }
|
|
|
|
|
- Stream^.Read(Header, SizeOf(THeader)); { Read header }
|
|
|
|
|
- Case Header.Signature Of
|
|
|
|
|
- {$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} { Old EXE format }
|
|
|
|
|
- $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/NT/OS2 - Updated 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/NT/OS2 - Updated 18Jun96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TResourceFile.Count: Integer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Count := Index.Count; { Return index count }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TResourceFile------------------------------------------------------------}
|
|
|
|
|
-{ KeyAt -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 18Jun96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TResourceFile.KeyAt (I: Integer): String;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- KeyAt := PResourceItem(Index.At(I))^.Key; { Return key }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TResourceFile------------------------------------------------------------}
|
|
|
|
|
-{ Get -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 18Jun96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TResourceFile.Get (Key: String): PObject;
|
|
|
|
|
-VAR I: 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/NT/OS2 - Updated 18Jun96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TResourceFile.SwitchTo (AStream: PStream; Pack: Boolean): PStream;
|
|
|
|
|
-VAR NewBasePos: LongInt;
|
|
|
|
|
-
|
|
|
|
|
- PROCEDURE DoCopyResource (Item: PResourceItem); {$IFNDEF FPC} FAR; {$ENDIF}
|
|
|
|
|
- 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/NT/OS2 - Updated 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/NT/OS2 - Updated 18Jun96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TResourceFile.Delete (Key: String);
|
|
|
|
|
-VAR I: 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/NT/OS2 - Updated 18Jun96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TResourceFile.Put (Item: PObject; Key: String);
|
|
|
|
|
-VAR I: Integer; 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
|
|
|
|
|
- If (MaxAvail > SizeOf(TResourceItem)-SizeOf(Key)){ Check free memory }
|
|
|
|
|
- Then Begin
|
|
|
|
|
- GetMem(P, Length(Key) + (SizeOf(TResourceItem)
|
|
|
|
|
- - SizeOf(Key) + 1)); { Allocate memory }
|
|
|
|
|
- P^.Key := Key; { Store key }
|
|
|
|
|
- Index.AtInsert(I, P); { Insert item }
|
|
|
|
|
- End Else P := Nil; { Insufficient memory }
|
|
|
|
|
- End;
|
|
|
|
|
- If (P <> Nil) Then Begin { Allocate worked }
|
|
|
|
|
- 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/NT/OS2 - Updated 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 }
|
|
|
|
|
- If (MaxAvail >= IndexSize * SizeOf(TStrIndexRec)) { Check free memory }
|
|
|
|
|
- Then Begin
|
|
|
|
|
- GetMem(Index, IndexSize * SizeOf(TStrIndexRec)); { Allocate memory }
|
|
|
|
|
- S.Read(Index^, IndexSize * SizeOf(TStrIndexRec));{ Read indexes }
|
|
|
|
|
- End Else IndexSize := 0; { Insufficient memory }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStringList--------------------------------------------------------------}
|
|
|
|
|
-{ Done -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Jun97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-DESTRUCTOR TStringList.Done;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- FreeMem(Index, IndexSize * SizeOf(TStrIndexRec)); { Release memory }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStringList--------------------------------------------------------------}
|
|
|
|
|
-{ Get -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Jun97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION TStringList.Get (Key: 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 }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-
|
|
|
|
|
-{--TStringList--------------------------------------------------------------}
|
|
|
|
|
-{ ReadStr -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Jun97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStringList.ReadStr (Var S: String; Offset, Skip: Word);
|
|
|
|
|
-VAR B: Byte;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Stream^.Seek(BasePos + Offset); { Seek to position }
|
|
|
|
|
- Inc(Skip); { Adjust skip }
|
|
|
|
|
- Repeat
|
|
|
|
|
- Stream^.Read(B, 1); { Read string size }
|
|
|
|
|
- {$IFDEF PPC_DELPHI3} { DELPHI 3+ COMPILER }
|
|
|
|
|
- SetLength(S, B); { Xfer string length }
|
|
|
|
|
- {$ELSE} { OTHER COMPILERS }
|
|
|
|
|
- S[0] := Chr(B); { Xfer string size }
|
|
|
|
|
- {$ENDIF}
|
|
|
|
|
- Stream^.Read(S[1], B); { Read string data }
|
|
|
|
|
- Dec(Skip); { One string read }
|
|
|
|
|
- Until (Skip = 0);
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ TStrListMaker OBJECT METHODS }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{--TStrListMaker------------------------------------------------------------}
|
|
|
|
|
-{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Jun97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-CONSTRUCTOR TStrListMaker.Init (AStrSize, AIndexSize: Word);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- Inherited Init; { Call ancestor }
|
|
|
|
|
- StrSize := AStrSize; { Hold size }
|
|
|
|
|
- If (MaxAvail >= AStrSize) Then
|
|
|
|
|
- GetMem(Strings, AStrSize); { Allocate memory }
|
|
|
|
|
- If (MaxAvail >= AIndexSize * SizeOf(TStrIndexRec)) { Check free memory }
|
|
|
|
|
- Then Begin
|
|
|
|
|
- IndexSize := AIndexSize; { Hold index size }
|
|
|
|
|
- GetMem(Index, AIndexSize * SizeOf(TStrIndexRec));{ Allocate memory }
|
|
|
|
|
- End;
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{--TStrListMaker------------------------------------------------------------}
|
|
|
|
|
-{ Done -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/NT/OS2 - Updated 30Jun97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE TStrListMaker.Put (Key: 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/NT/OS2 - Updated 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/NT/OS2 - Updated 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 }
|
|
|
|
|
-{***************************************************************************}
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ STREAM INTERFACE ROUTINES }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ Abstract -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 12Jun96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE Abstract;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- RunError(211); { Abstract error }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ RegisterObjects -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 02Sep97 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE RegisterObjects;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- RegisterType(RCollection); { Register object }
|
|
|
|
|
- RegisterType(RStringCollection); { Register object }
|
|
|
|
|
- RegisterType(RStrCollection); { Register object }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ RegisterType -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 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/WIN/NT/OS2 - Updated 10Feb98 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION LongMul (X, Y: Integer): LongInt;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- LongMul := LongInt(X*Y); { Multiply integers }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ LongDiv -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10Feb98 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION LongDiv (X: LongInt; Y: Integer): Integer;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- LongDiv := Integer(X DIV Y); { Divid longint }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-{ DYNAMIC STRING INTERFACE ROUTINES }
|
|
|
|
|
-{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ NewStr -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 12Jun96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-FUNCTION NewStr (S: String): PString;
|
|
|
|
|
-VAR P: PString;
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (S = '') Then P := Nil Else Begin { Empty returns nil }
|
|
|
|
|
- If (MaxAvail > Length(S)) Then Begin { Check free memory }
|
|
|
|
|
- GetMem(P, Length(S) + 1); { Allocate memory }
|
|
|
|
|
- If (P <> Nil) Then P^ := S; { Transfer string }
|
|
|
|
|
- End Else P := Nil; { Insufficient memory }
|
|
|
|
|
- End;
|
|
|
|
|
- NewStr := P; { Return result }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-{ DisposeStr -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 12Jun96 LdB }
|
|
|
|
|
-{---------------------------------------------------------------------------}
|
|
|
|
|
-PROCEDURE DisposeStr (P: PString);
|
|
|
|
|
-BEGIN
|
|
|
|
|
- If (P <> Nil) Then FreeMem(P, Length(P^) + 1); { Release memory }
|
|
|
|
|
-END;
|
|
|
|
|
-
|
|
|
|
|
-END.
|
|
|
|
|
-
|
|
|
|
|
-{
|
|
|
|
|
- $Log$
|
|
|
|
|
- Revision 1.4 2001-04-10 21:57:55 pierre
|
|
|
|
|
- + first adds for Use_API define
|
|
|
|
|
-
|
|
|
|
|
- Revision 1.3 2001/04/10 21:29:55 pierre
|
|
|
|
|
- * import of Leon de Boer's files
|
|
|
|
|
-
|
|
|
|
|
- Revision 1.2 2000/08/24 12:00:22 marco
|
|
|
|
|
- * CVS log and ID tags
|
|
|
|
|
-
|
|
|
|
|
-
|
|
|
|
|
-}
|
|
|
pierre