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https://gitlab.com/freepascal.org/fpc/source.git
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1813 lines
82 KiB
ObjectPascal
1813 lines
82 KiB
ObjectPascal
{ $Id$ }
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{********[ SOURCE FILE OF GRAPHICAL FREE VISION ]**********}
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{ }
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{ System independent clone of DRIVERS.PAS }
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{ }
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{ Interface Copyright (c) 1992 Borland International }
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{ }
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{ Copyright (c) 1996, 1997, 1998, 1999, 2000 }
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{ by Leon de Boer }
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{ ldeboer@attglobal.net - primary e-mail addr }
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{ ldeboer@projectent.com.au - backup e-mail addr }
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{ }
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{ Original FormatStr kindly donated by Marco Schmidt }
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{ }
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{ Mouse callback hook under FPC with kind assistance of }
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{ Pierre Muller, Gertjan Schouten & Florian Klaempfl. }
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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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{ }
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{ Only Free Pascal Compiler supported }
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{ }
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{**********************************************************}
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UNIT Drivers;
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{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
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INTERFACE
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{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
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{====Include file to sort compiler platform out =====================}
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{$I Platform.inc}
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{====================================================================}
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{==== Compiler directives ===========================================}
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{$X+} { Extended syntax is ok }
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{$R-} { Disable range checking }
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{$IFNDEF OS_UNIX}
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{$S-} { Disable Stack Checking }
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{$ENDIF}
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{$I-} { Disable IO Checking }
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{$Q-} { Disable Overflow Checking }
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{$V-} { Turn off strict VAR strings }
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{====================================================================}
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{$ifdef CPU68K}
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{$DEFINE ENDIAN_BIG}
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{$endif CPU68K}
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USES
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{$IFDEF OS_WINDOWS} { WIN/NT CODE }
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Windows, { Standard unit }
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{$ENDIF}
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{$IFDEF OS_OS2} { OS2 CODE }
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{$IFDEF PPC_Virtual} { VIRTUAL PASCAL UNITS }
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OS2Def, OS2Base, OS2PMAPI, { Standard units }
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{$ENDIF}
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{$IFDEF PPC_Speed} { SPEED PASCAL UNITS }
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BseDos, Os2Def, { Standard units }
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{$ENDIF}
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{$IFDEF PPC_FPC} { FPC UNITS }
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DosCalls, Os2Def, { Standard units }
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{$ENDIF}
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{$ENDIF}
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{$IFDEF OS_UNIX}
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{$ifdef VER1_0}
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linux,
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{$else}
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baseunix,unix,
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{$endif}
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{$ENDIF}
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video,
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{$ifdef HasSysMsgUnit}
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SysMsg,
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{$endif HasSysMsgUnit}
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{$IFDEF GRAPH_API} { GRAPH CODE }
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Graph, { Standard unit }
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{$ENDIF}
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GFVGraph, { GFV graphics unit }
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FVCommon, Objects; { GFV standard units }
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{***************************************************************************}
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{ PUBLIC CONSTANTS }
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{***************************************************************************}
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{---------------------------------------------------------------------------}
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{ EVENT TYPE MASKS }
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{---------------------------------------------------------------------------}
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CONST
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evMouseDown = $0001; { Mouse down event }
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evMouseUp = $0002; { Mouse up event }
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evMouseMove = $0004; { Mouse move event }
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evMouseAuto = $0008; { Mouse auto event }
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evKeyDown = $0010; { Key down event }
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evCommand = $0100; { Command event }
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evBroadcast = $0200; { Broadcast event }
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{---------------------------------------------------------------------------}
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{ EVENT CODE MASKS }
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{---------------------------------------------------------------------------}
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CONST
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evNothing = $0000; { Empty event }
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evMouse = $000F; { Mouse event }
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evKeyboard = $0010; { Keyboard event }
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evMessage = $FF00; { Message event }
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{---------------------------------------------------------------------------}
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{ EXTENDED KEY CODES }
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{---------------------------------------------------------------------------}
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CONST
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kbNoKey = $0000; kbAltEsc = $0100; kbEsc = $011B;
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kbAltSpace = $0200; kbCtrlIns = $0400; kbShiftIns = $0500;
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kbCtrlDel = $0600; kbShiftDel = $0700; kbAltBack = $0800;
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kbAltShiftBack= $0900; kbBack = $0E08; kbCtrlBack = $0E7F;
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kbShiftTab = $0F00; kbTab = $0F09; kbAltQ = $1000;
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kbCtrlQ = $1011; kbAltW = $1100; kbCtrlW = $1117;
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kbAltE = $1200; kbCtrlE = $1205; kbAltR = $1300;
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kbCtrlR = $1312; kbAltT = $1400; kbCtrlT = $1414;
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kbAltY = $1500; kbCtrlY = $1519; kbAltU = $1600;
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kbCtrlU = $1615; kbAltI = $1700; kbCtrlI = $1709;
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kbAltO = $1800; kbCtrlO = $180F; kbAltP = $1900;
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kbCtrlP = $1910; kbAltLftBrack = $1A00; kbAltRgtBrack = $1B00;
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kbCtrlEnter = $1C0A; kbEnter = $1C0D; kbAltA = $1E00;
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kbCtrlA = $1E01; kbAltS = $1F00; kbCtrlS = $1F13;
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kbAltD = $2000; kbCtrlD = $2004; kbAltF = $2100;
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kbCtrlF = $2106; kbAltG = $2200; kbCtrlG = $2207;
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kbAltH = $2300; kbCtrlH = $2308; kbAltJ = $2400;
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kbCtrlJ = $240A; kbAltK = $2500; kbCtrlK = $250B;
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kbAltL = $2600; kbCtrlL = $260C; kbAltSemiCol = $2700;
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kbAltQuote = $2800; kbAltOpQuote = $2900; kbAltBkSlash = $2B00;
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kbAltZ = $2C00; kbCtrlZ = $2C1A; kbAltX = $2D00;
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kbCtrlX = $2D18; kbAltC = $2E00; kbCtrlC = $2E03;
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kbAltV = $2F00; kbCtrlV = $2F16; kbAltB = $3000;
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kbCtrlB = $3002; kbAltN = $3100; kbCtrlN = $310E;
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kbAltM = $3200; kbCtrlM = $320D; kbAltComma = $3300;
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kbAltPeriod = $3400; kbAltSlash = $3500; kbAltGreyAst = $3700;
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kbSpaceBar = $3920; kbF1 = $3B00; kbF2 = $3C00;
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kbF3 = $3D00; kbF4 = $3E00; kbF5 = $3F00;
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kbF6 = $4000; kbF7 = $4100; kbF8 = $4200;
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kbF9 = $4300; kbF10 = $4400; kbHome = $4700;
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kbUp = $4800; kbPgUp = $4900; kbGrayMinus = $4A2D;
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kbLeft = $4B00; kbCenter = $4C00; kbRight = $4D00;
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kbAltGrayPlus = $4E00; kbGrayPlus = $4E2B; kbEnd = $4F00;
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kbDown = $5000; kbPgDn = $5100; kbIns = $5200;
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kbDel = $5300; kbShiftF1 = $5400; kbShiftF2 = $5500;
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kbShiftF3 = $5600; kbShiftF4 = $5700; kbShiftF5 = $5800;
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kbShiftF6 = $5900; kbShiftF7 = $5A00; kbShiftF8 = $5B00;
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kbShiftF9 = $5C00; kbShiftF10 = $5D00; kbCtrlF1 = $5E00;
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kbCtrlF2 = $5F00; kbCtrlF3 = $6000; kbCtrlF4 = $6100;
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kbCtrlF5 = $6200; kbCtrlF6 = $6300; kbCtrlF7 = $6400;
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kbCtrlF8 = $6500; kbCtrlF9 = $6600; kbCtrlF10 = $6700;
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kbAltF1 = $6800; kbAltF2 = $6900; kbAltF3 = $6A00;
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kbAltF4 = $6B00; kbAltF5 = $6C00; kbAltF6 = $6D00;
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kbAltF7 = $6E00; kbAltF8 = $6F00; kbAltF9 = $7000;
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kbAltF10 = $7100; kbCtrlPrtSc = $7200; kbCtrlLeft = $7300;
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kbCtrlRight = $7400; kbCtrlEnd = $7500; kbCtrlPgDn = $7600;
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kbCtrlHome = $7700; kbAlt1 = $7800; kbAlt2 = $7900;
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kbAlt3 = $7A00; kbAlt4 = $7B00; kbAlt5 = $7C00;
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kbAlt6 = $7D00; kbAlt7 = $7E00; kbAlt8 = $7F00;
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kbAlt9 = $8000; kbAlt0 = $8100; kbAltMinus = $8200;
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kbAltEqual = $8300; kbCtrlPgUp = $8400; kbF11 = $8500;
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kbF12 = $8600; kbShiftF11 = $8700; kbShiftF12 = $8800;
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kbCtrlF11 = $8900; kbCtrlF12 = $8A00; kbAltF11 = $8B00;
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kbAltF12 = $8C00; kbCtrlUp = $8D00; kbCtrlMinus = $8E00;
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kbCtrlCenter = $8F00; kbCtrlGreyPlus= $9000; kbCtrlDown = $9100;
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kbCtrlTab = $9400; kbAltHome = $9700; kbAltUp = $9800;
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kbAltPgUp = $9900; kbAltLeft = $9B00; kbAltRight = $9D00;
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kbAltEnd = $9F00; kbAltDown = $A000; kbAltPgDn = $A100;
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kbAltIns = $A200; kbAltDel = $A300; kbAltTab = $A500;
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{ ------------------------------- REMARK ------------------------------ }
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{ New keys not initially defined by Borland in their unit interface. }
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{ ------------------------------ END REMARK --- Leon de Boer, 15May96 - }
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kbFullStop = $342E; kbComma = $332C; kbBackSlash = $352F;
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kbApostrophe = $2827; kbSemiColon = $273B; kbEqual = $0D3D;
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kbGreaterThan = $343E; kbLessThan = $333C; kbQuestion = $353F;
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kbQuote = $2822; kbColon = $273A; kbPlus = $0D2B;
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kbPipe = $2B7C; kbSlash = $2B5C; kbExclaim = $0221;
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kbAt = $0340; kbNumber = $0423; kbPercent = $0625;
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kbCaret = $075E; kbAmpersand = $0826; kbAsterix = $092A;
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kbLeftBracket = $0A28; kbRightBracket= $0B29; kbApprox = $2960;
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kbTilde = $297E; kbDollar = $0524; kbMinus = $0C2D;
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kbUnderline = $0C5F; kbLeftSqBr = $1A5B; kbRightSqBr = $1B5D;
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kbLeftCurlyBr = $1A7B; kbRightCurlyBr= $1B7D;
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{---------------------------------------------------------------------------}
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{ KEYBOARD STATE AND SHIFT MASKS }
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{---------------------------------------------------------------------------}
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CONST
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kbRightShift = $0001; { Right shift key }
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kbLeftShift = $0002; { Left shift key }
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kbCtrlShift = $0004; { Control key down }
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kbAltShift = $0008; { Alt key down }
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kbScrollState = $0010; { Scroll lock on }
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kbNumState = $0020; { Number lock on }
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kbCapsState = $0040; { Caps lock on }
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kbInsState = $0080; { Insert mode on }
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kbBothShifts = kbRightShift + kbLeftShift; { Right & Left shifts }
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{---------------------------------------------------------------------------}
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{ MOUSE BUTTON STATE MASKS }
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{---------------------------------------------------------------------------}
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CONST
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mbLeftButton = $01; { Left mouse button }
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mbRightButton = $02; { Right mouse button }
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mbMiddleButton = $04; { Middle mouse button }
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{---------------------------------------------------------------------------}
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{ SCREEN CRT MODE CONSTANTS }
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{---------------------------------------------------------------------------}
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CONST
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smBW80 = $0002; { Black and white }
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smCO80 = $0003; { Colour mode }
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smMono = $0007; { Monochrome mode }
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smFont8x8 = $0100; { 8x8 font mode }
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{***************************************************************************}
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{ PUBLIC TYPE DEFINITIONS }
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{***************************************************************************}
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{ ******************************* REMARK ****************************** }
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{ The TEvent definition is completely compatable with all existing }
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{ code but adds two new fields ID and Data into the message record }
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{ which helps with WIN/NT and OS2 message processing. }
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{ ****************************** END REMARK *** Leon de Boer, 11Sep97 * }
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{---------------------------------------------------------------------------}
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{ EVENT RECORD DEFINITION }
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{---------------------------------------------------------------------------}
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TYPE
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TEvent = PACKED RECORD
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What: Sw_Word; { Event type }
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Case Sw_Word Of
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evNothing: (); { ** NO EVENT ** }
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evMouse: (
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Buttons: Byte; { Mouse buttons }
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Double: Boolean; { Double click state }
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Where: TPoint); { Mouse position }
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evKeyDown: (
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{ ** KEY EVENT ** }
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Case Sw_Integer Of
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0: (KeyCode: Word); { Full key code }
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1: (
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{$ifdef ENDIAN_BIG}
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ScanCode: Byte;
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CharCode: Char;
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{$else not ENDIAN_BIG}
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CharCode: Char; { Char code }
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ScanCode: Byte; { Scan code }
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{$endif not ENDIAN_BIG}
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KeyShift: byte)); { Shift states }
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evMessage: ( { ** MESSAGE EVENT ** }
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Command: Sw_Word; { Message command }
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Id : Sw_Word; { Message id }
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Data : Real; { Message data }
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Case Sw_Word Of
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0: (InfoPtr: Pointer); { Message pointer }
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1: (InfoLong: Longint); { Message longint }
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2: (InfoWord: Word); { Message Sw_Word }
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3: (InfoInt: Integer); { Message Sw_Integer }
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4: (InfoByte: Byte); { Message byte }
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5: (InfoChar: Char)); { Message character }
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END;
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PEvent = ^TEvent;
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{$ifdef USE_VIDEO_API}
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TVideoMode = Video.TVideoMode; { Screen mode }
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{$else not USE_VIDEO_API}
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TVideoMode = Sw_Word; { Screen mode }
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{$endif USE_VIDEO_API}
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{---------------------------------------------------------------------------}
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{ ERROR HANDLER FUNCTION DEFINITION }
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{---------------------------------------------------------------------------}
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TYPE
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TSysErrorFunc = FUNCTION (ErrorCode: Sw_Integer; Drive: Byte): Sw_Integer;
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{***************************************************************************}
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{ INTERFACE ROUTINES }
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{***************************************************************************}
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{ Get Dos counter ticks }
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Function GetDosTicks:longint; { returns ticks at 18.2 Hz, just like DOS }
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{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
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{ BUFFER MOVE ROUTINES }
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{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
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{-CStrLen------------------------------------------------------------
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Returns the length of string S, where S is a control string using tilde
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characters ('~') to designate shortcut characters. The tildes are
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excluded from the length of the string, as they will not appear on
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the screen. For example, given the string '~B~roccoli' as its
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parameter, CStrLen returns 8.
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25May96 LdB
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---------------------------------------------------------------------}
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FUNCTION CStrLen (Const S: String): Sw_Integer;
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{-MoveStr------------------------------------------------------------
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Moves a string into a buffer for use with a view's WriteBuf or WriteLine.
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Dest must be a TDrawBuffer (or an equivalent array of Sw_Words). The
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characters in Str are moved into the low bytes of corresponding Sw_Words
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in Dest. The high bytes of the Sw_Words are set to Attr, or remain
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unchanged if Attr is zero.
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25May96 LdB
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---------------------------------------------------------------------}
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PROCEDURE MoveStr (Var Dest; Const Str: String; Attr: Byte);
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{-MoveCStr-----------------------------------------------------------
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The characters in Str are moved into the low bytes of corresponding
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Sw_Words in Dest. The high bytes of the Sw_Words are set to Lo(Attr) or
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Hi(Attr). Tilde characters (~) in the string toggle between the two
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attribute bytes passed in the Attr Sw_Word.
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25May96 LdB
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---------------------------------------------------------------------}
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PROCEDURE MoveCStr (Var Dest; Const Str: String; Attrs: Word);
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{-MoveBuf------------------------------------------------------------
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Count bytes are moved from Source into the low bytes of corresponding
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Sw_Words in Dest. The high bytes of the Sw_Words in Dest are set to Attr,
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or remain unchanged if Attr is zero.
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25May96 LdB
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---------------------------------------------------------------------}
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PROCEDURE MoveBuf (Var Dest, Source; Attr: Byte; Count: Sw_Word);
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{-MoveChar------------------------------------------------------------
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Moves characters into a buffer for use with a view's WriteBuf or
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WriteLine. Dest must be a TDrawBuffer (or an equivalent array of Sw_Words).
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The low bytes of the first Count Sw_Words of Dest are set to C, or
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remain unchanged if Ord(C) is zero. The high bytes of the Sw_Words are
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set to Attr, or remain unchanged if Attr is zero.
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25May96 LdB
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---------------------------------------------------------------------}
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PROCEDURE MoveChar (Var Dest; C: Char; Attr: Byte; Count: Sw_Word);
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{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
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{ KEYBOARD SUPPORT ROUTINES }
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{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
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{-GetAltCode---------------------------------------------------------
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Returns the scancode corresponding to Alt+Ch key that is given.
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25May96 LdB
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---------------------------------------------------------------------}
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FUNCTION GetAltCode (Ch: Char): Word;
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{-GetCtrlCode--------------------------------------------------------
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Returns the scancode corresponding to Alt+Ch key that is given.
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25May96 LdB
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---------------------------------------------------------------------}
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FUNCTION GetCtrlCode (Ch: Char): Word;
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{-GetAltChar---------------------------------------------------------
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Returns the ascii character for the Alt+Key scancode that was given.
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25May96 LdB
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---------------------------------------------------------------------}
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FUNCTION GetAltChar (KeyCode: Word): Char;
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{-GetCtrlChar--------------------------------------------------------
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Returns the ascii character for the Ctrl+Key scancode that was given.
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25May96 LdB
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---------------------------------------------------------------------}
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FUNCTION GetCtrlChar (KeyCode: Word): Char;
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{-CtrlToArrow--------------------------------------------------------
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Converts a WordStar-compatible control key code to the corresponding
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cursor key code.
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25May96 LdB
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---------------------------------------------------------------------}
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FUNCTION CtrlToArrow (KeyCode: Word): Word;
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{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
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{ KEYBOARD CONTROL ROUTINES }
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{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
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{-GetShiftState------------------------------------------------------
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Returns a byte containing the current Shift key state. The return
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value contains a combination of the kbXXXX constants for shift states.
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08Jul96 LdB
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---------------------------------------------------------------------}
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FUNCTION GetShiftState: Byte;
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{-GetKeyEvent--------------------------------------------------------
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Checks whether a keyboard event is available. If a key has been pressed,
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Event.What is set to evKeyDown and Event.KeyCode is set to the scan
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code of the key. Otherwise, Event.What is set to evNothing.
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19May98 LdB
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---------------------------------------------------------------------}
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PROCEDURE GetKeyEvent (Var Event: TEvent);
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{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
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{ MOUSE CONTROL ROUTINES }
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{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
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{-ShowMouse----------------------------------------------------------
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Decrements the hide counter and if zero the mouse is shown on screen.
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30Jun98 LdB
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---------------------------------------------------------------------}
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PROCEDURE ShowMouse;
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{-HideMouse----------------------------------------------------------
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If mouse hide counter is zero it removes the cursor from the screen.
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The hide counter is then incremented by one count.
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30Jun98 LdB
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---------------------------------------------------------------------}
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PROCEDURE HideMouse;
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{-GetMouseEvent------------------------------------------------------
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Checks whether a mouse event is available. If a mouse event has occurred,
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Event.What is set to evMouseDown, evMouseUp, evMouseMove, or evMouseAuto
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and the button and double click variables are set appropriately.
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|
06Jan97 LdB
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---------------------------------------------------------------------}
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PROCEDURE GetMouseEvent (Var Event: TEvent);
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{$ifdef HasSysMsgUnit}
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|
{-GetSystemEvent------------------------------------------------------
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Checks whether a system event is available. If a system event has occurred,
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Event.What is set to evCommand appropriately
|
|
10Oct2000 PM
|
|
---------------------------------------------------------------------}
|
|
procedure GetSystemEvent (Var Event: TEvent);
|
|
{$endif HasSysMsgUnit}
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ EVENT HANDLER CONTROL ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{-InitEvents---------------------------------------------------------
|
|
Initializes the event manager, enabling the mouse handler routine and
|
|
under DOS/DPMI shows the mouse on screen. It is called automatically
|
|
by TApplication.Init.
|
|
02May98 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE InitEvents;
|
|
|
|
{-DoneEvents---------------------------------------------------------
|
|
Terminates event manager and disables the mouse and under DOS hides
|
|
the mouse. It is called automatically by TApplication.Done.
|
|
02May98 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE DoneEvents;
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ VIDEO CONTROL ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{-InitVideo---------------------------------------------------------
|
|
Initializes the video manager, Saves the current screen mode in
|
|
StartupMode, and switches to the mode indicated by ScreenMode.
|
|
19May98 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE InitVideo;
|
|
|
|
{-DoneVideo---------------------------------------------------------
|
|
Terminates the video manager by restoring the initial screen mode
|
|
(given by StartupMode), clearing the screen, and restoring the cursor.
|
|
Called automatically by TApplication.Done.
|
|
03Jan97 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE DoneVideo;
|
|
|
|
{-ClearScreen--------------------------------------------------------
|
|
Does nothing provided for compatability purposes only.
|
|
04Jan97 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE ClearScreen;
|
|
|
|
{-SetVideoMode-------------------------------------------------------
|
|
Does nothing provided for compatability purposes only.
|
|
04Jan97 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE SetVideoMode (Mode: Sw_Word);
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ ERROR CONTROL ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{-InitSysError-------------------------------------------------------
|
|
Error handling is not yet implemented so this simply sets
|
|
SysErrActive=True (ie it lies) and exits.
|
|
20May98 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE InitSysError;
|
|
|
|
{-DoneSysError-------------------------------------------------------
|
|
Error handling is not yet implemented so this simply sets
|
|
SysErrActive=False and exits.
|
|
20May98 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE DoneSysError;
|
|
|
|
{-SystemError---------------------------------------------------------
|
|
Error handling is not yet implemented so this simply drops through.
|
|
20May98 LdB
|
|
---------------------------------------------------------------------}
|
|
FUNCTION SystemError (ErrorCode: Sw_Integer; Drive: Byte): Sw_Integer;
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ STRING FORMAT ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{-PrintStr-----------------------------------------------------------
|
|
Does nothing provided for compatability purposes only.
|
|
30Jun98 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE PrintStr (CONST S: String);
|
|
|
|
{-FormatStr----------------------------------------------------------
|
|
A string formatting routine that given a string that includes format
|
|
specifiers and a list of parameters in Params, FormatStr produces a
|
|
formatted output string in Result.
|
|
18Feb99 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE FormatStr (Var Result: String; CONST Format: String; Var Params);
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ >> NEW QUEUED EVENT HANDLER ROUTINES << }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{-PutEventInQueue-----------------------------------------------------
|
|
If there is room in the queue the event is placed in the next vacant
|
|
position in the queue manager.
|
|
17Mar98 LdB
|
|
---------------------------------------------------------------------}
|
|
FUNCTION PutEventInQueue (Var Event: TEvent): Boolean;
|
|
|
|
{-NextQueuedEvent----------------------------------------------------
|
|
If there are queued events the next event is loaded into event else
|
|
evNothing is returned.
|
|
17Mar98 LdB
|
|
---------------------------------------------------------------------}
|
|
PROCEDURE NextQueuedEvent(Var Event: TEvent);
|
|
|
|
{***************************************************************************}
|
|
{ INITIALIZED PUBLIC VARIABLES }
|
|
{***************************************************************************}
|
|
|
|
PROCEDURE HideMouseCursor;
|
|
PROCEDURE ShowMouseCursor;
|
|
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ INITIALIZED DOS/DPMI/WIN/NT/OS2 VARIABLES }
|
|
{---------------------------------------------------------------------------}
|
|
CONST
|
|
CheckSnow : Boolean = False; { Compatability only }
|
|
MouseEvents : Boolean = False; { Mouse event state }
|
|
MouseReverse : Boolean = False; { Mouse reversed }
|
|
HiResScreen : Boolean = False; { Compatability only }
|
|
CtrlBreakHit : Boolean = False; { Compatability only }
|
|
SaveCtrlBreak: Boolean = False; { Compatability only }
|
|
SysErrActive : Boolean = False; { Compatability only }
|
|
FailSysErrors: Boolean = False; { Compatability only }
|
|
ButtonCount : Byte = 0; { Mouse button count }
|
|
DoubleDelay : Sw_Word = 8; { Double click delay }
|
|
RepeatDelay : Sw_Word = 8; { Auto mouse delay }
|
|
SysColorAttr : Sw_Word = $4E4F; { System colour attr }
|
|
SysMonoAttr : Sw_Word = $7070; { System mono attr }
|
|
StartupMode : Sw_Word = $FFFF; { Compatability only }
|
|
CursorLines : Sw_Word = $FFFF; { Compatability only }
|
|
ScreenBuffer : Pointer = Nil; { Compatability only }
|
|
SaveInt09 : Pointer = Nil; { Compatability only }
|
|
SysErrorFunc : TSysErrorFunc = {$ifdef FPC}@{$endif}SystemError; { System error ptr }
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ >>> NEW INITIALIZED DOS/DPMI/WIN/NT/OS2 VARIABLES <<< }
|
|
{---------------------------------------------------------------------------}
|
|
CONST
|
|
TextModeGFV : Boolean = False; { DOS/DPMI textmode op }
|
|
UseFixedFont : Boolean = True;
|
|
DefLineNum : Sw_Integer = 25; { Default line number }
|
|
DefFontHeight : Sw_Integer = 0; { Default font height }
|
|
SysFontWidth : Sw_Integer = 8; { System font width }
|
|
SysFontHeight : Sw_Integer = 16; { System font height }
|
|
|
|
{***************************************************************************}
|
|
{ UNINITIALIZED PUBLIC VARIABLES }
|
|
{***************************************************************************}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ UNINITIALIZED DOS/DPMI/WIN/NT/OS2 VARIABLES }
|
|
{---------------------------------------------------------------------------}
|
|
VAR
|
|
MouseIntFlag: Byte; { Mouse in int flag }
|
|
MouseButtons: Byte; { Mouse button state }
|
|
ScreenWidth : Byte; { Screen text width }
|
|
ScreenHeight: Byte; { Screen text height }
|
|
{$IFNDEF Use_Video_API}
|
|
ScreenMode : Sw_Word; { Screen mode }
|
|
{$Else Use_Video_API}
|
|
ScreenMode : TVideoMode; { Screen mode }
|
|
{$Endif Use_Video_API}
|
|
MouseWhere : TPoint; { Mouse position }
|
|
|
|
{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
|
|
IMPLEMENTATION
|
|
{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
|
|
{ API Units }
|
|
USES
|
|
FVConsts,
|
|
{$IFDEF GRAPH_API} { GRAPH CODE }
|
|
{$ifdef win32}
|
|
win32gr,
|
|
{$endif}
|
|
{$ENDIF GRAPH_API} { GRAPH CODE }
|
|
Keyboard,Mouse;
|
|
|
|
{***************************************************************************}
|
|
{ PRIVATE INTERNAL CONSTANTS }
|
|
{***************************************************************************}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ DOS/DPMI MOUSE INTERRUPT EVENT QUEUE SIZE }
|
|
{---------------------------------------------------------------------------}
|
|
CONST EventQSize = 16; { Default int bufsize }
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ DOS/DPMI/WIN/NT/OS2 NEW EVENT QUEUE MAX SIZE }
|
|
{---------------------------------------------------------------------------}
|
|
CONST QueueMax = 64; { Max new queue size }
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ MAX WIEW WIDTH to avoid TDrawBuffer overrun in views unit }
|
|
{---------------------------------------------------------------------------}
|
|
CONST MaxViewWidth = 132; { Max view width }
|
|
|
|
{***************************************************************************}
|
|
{ PRIVATE INTERNAL TYPES }
|
|
{***************************************************************************}
|
|
|
|
{***************************************************************************}
|
|
{ PRIVATE INTERNAL INITIALIZED VARIABLES }
|
|
{***************************************************************************}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ DOS/DPMI/WIN/NT/OS2 ALT KEY SCANCODES FROM KEYS (0-127) }
|
|
{---------------------------------------------------------------------------}
|
|
CONST AltCodes: Array [0..127] Of Byte = (
|
|
$00, $00, $00, $00, $00, $00, $00, $00, { $00 - $07 }
|
|
$00, $00, $00, $00, $00, $00, $00, $00, { $08 - $0F }
|
|
$00, $00, $00, $00, $00, $00, $00, $00, { $10 - $17 }
|
|
$00, $00, $00, $00, $00, $00, $00, $00, { $18 - $1F }
|
|
$00, $00, $00, $00, $00, $00, $00, $00, { $20 - $27 }
|
|
$00, $00, $00, $00, $00, $82, $00, $00, { $28 - $2F }
|
|
$81, $78, $79, $7A, $7B, $7C, $7D, $7E, { $30 - $37 }
|
|
$7F, $80, $00, $00, $00, $83, $00, $00, { $38 - $3F }
|
|
$00, $1E, $30, $2E, $20, $12, $21, $22, { $40 - $47 }
|
|
$23, $17, $24, $25, $26, $32, $31, $18, { $48 - $4F }
|
|
$19, $10, $13, $1F, $14, $16, $2F, $11, { $50 - $57 }
|
|
$2D, $15, $2C, $00, $00, $00, $00, $00, { $58 - $5F }
|
|
$00, $00, $00, $00, $00, $00, $00, $00, { $60 - $67 }
|
|
$00, $00, $00, $00, $00, $00, $00, $00, { $68 - $6F }
|
|
$00, $00, $00, $00, $00, $00, $00, $00, { $70 - $77 }
|
|
$00, $00, $00, $00, $00, $00, $00, $00); { $78 - $7F }
|
|
|
|
{***************************************************************************}
|
|
{ PRIVATE INTERNAL INITIALIZED VARIABLES }
|
|
{***************************************************************************}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ NEW CONTROL VARIABLES }
|
|
{---------------------------------------------------------------------------}
|
|
CONST
|
|
HideCount : Sw_Integer = 0; { Cursor hide count }
|
|
QueueCount: Sw_Word = 0; { Queued message count }
|
|
QueueHead : Sw_Word = 0; { Queue head pointer }
|
|
QueueTail : Sw_Word = 0; { Queue tail pointer }
|
|
|
|
{***************************************************************************}
|
|
{ PRIVATE INTERNAL UNINITIALIZED VARIABLES }
|
|
{***************************************************************************}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ UNINITIALIZED DOS/DPMI/API VARIABLES }
|
|
{---------------------------------------------------------------------------}
|
|
VAR
|
|
LastDouble : Boolean; { Last double buttons }
|
|
LastButtons: Byte; { Last button state }
|
|
DownButtons: Byte; { Last down buttons }
|
|
EventCount : Sw_Word; { Events in queue }
|
|
AutoDelay : Sw_Word; { Delay time count }
|
|
DownTicks : Sw_Word; { Down key tick count }
|
|
AutoTicks : Sw_Word; { Held key tick count }
|
|
LastWhereX : Sw_Word; { Last x position }
|
|
LastWhereY : Sw_Word; { Last y position }
|
|
DownWhereX : Sw_Word; { Last x position }
|
|
DownWhereY : Sw_Word; { Last y position }
|
|
LastWhere : TPoint; { Last mouse position }
|
|
DownWhere : TPoint; { Last down position }
|
|
EventQHead : Pointer; { Head of queue }
|
|
EventQTail : Pointer; { Tail of queue }
|
|
EventQueue : Array [0..EventQSize - 1] Of TEvent; { Event queue }
|
|
EventQLast : RECORD END; { Simple end marker }
|
|
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ GetDosTicks (18.2 Hz) }
|
|
{---------------------------------------------------------------------------}
|
|
|
|
Function GetDosTicks:longint; { returns ticks at 18.2 Hz, just like DOS }
|
|
{$IFDEF OS_OS2}
|
|
const
|
|
QSV_MS_COUNT = 14;
|
|
var
|
|
L: longint;
|
|
begin
|
|
DosQuerySysInfo (QSV_MS_COUNT, QSV_MS_COUNT, L, 4);
|
|
GetDosTicks := L div 55;
|
|
end;
|
|
{$ENDIF}
|
|
{$IFDEF OS_UNIX}
|
|
var
|
|
tv : TimeVal;
|
|
{ tz : TimeZone;}
|
|
begin
|
|
{$ifdef ver1_0}
|
|
GetTimeOfDay(tv{,tz});
|
|
GetDosTicks:=((tv.Sec mod 86400) div 60)*1092+((tv.Sec mod 60)*1000000+tv.USec) div 54945;
|
|
{$else}
|
|
FPGetTimeOfDay(@tv,nil{,tz});
|
|
GetDosTicks:=((tv.tv_Sec mod 86400) div 60)*1092+((tv.tv_Sec mod 60)*1000000+tv.tv_USec) div 54945;
|
|
|
|
{$endif}
|
|
end;
|
|
{$ENDIF OS_UNIX}
|
|
{$IFDEF OS_WINDOWS}
|
|
begin
|
|
GetDosTicks:=GetTickCount div 55;
|
|
end;
|
|
{$ENDIF OS_WINDOWS}
|
|
{$IFDEF OS_DOS}
|
|
begin
|
|
GetDosTicks:=MemL[$40:$6c];
|
|
end;
|
|
{$ENDIF OS_DOS}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ UNINITIALIZED DOS/DPMI/WIN/NT/OS2 VARIABLES }
|
|
{---------------------------------------------------------------------------}
|
|
VAR
|
|
SaveExit: Pointer; { Saved exit pointer }
|
|
Queue : Array [0..QueueMax-1] Of TEvent; { New message queue }
|
|
|
|
{***************************************************************************}
|
|
{ PRIVATE INTERNAL ROUTINES }
|
|
{***************************************************************************}
|
|
|
|
PROCEDURE ShowMouseCursor;
|
|
BEGIN
|
|
ShowMouse;
|
|
END;
|
|
|
|
PROCEDURE HideMouseCursor;
|
|
BEGIN
|
|
HideMouse;
|
|
END;
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ DOS/DPMI/WIN/NT/OS2 PRIVATE INTERNAL ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ ExitDrivers -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 08Jun98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE ExitDrivers; {$IFNDEF PPC_FPC}{$IFNDEF OS_UNIX} FAR; {$ENDIF}{$ENDIF}
|
|
BEGIN
|
|
DoneSysError; { Relase error trap }
|
|
DoneEvents; { Close event driver }
|
|
DoneKeyboard;
|
|
DoneVideo;
|
|
ExitProc := SaveExit; { Restore old exit }
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ DetectVideo -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 19May98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
{$IFDEF Use_Video_API}
|
|
|
|
procedure DetectVideo;
|
|
VAR
|
|
CurrMode : TVideoMode;
|
|
begin
|
|
{ Video.InitVideo; Incompatible with BP
|
|
and forces a screen clear which is often a bad thing PM }
|
|
GetVideoMode(CurrMode);
|
|
ScreenMode:=CurrMode;
|
|
end;
|
|
{$else not Use_Video_API}
|
|
PROCEDURE DetectVideo;
|
|
{$IFDEF OS_DOS} { DOS/DPMI CODE }
|
|
ASSEMBLER;
|
|
{$IFDEF ASM_BP} { BP COMPATABLE ASM }
|
|
ASM
|
|
MOV AH, $0F; { Set function id }
|
|
PUSH BP; { Safety!! save reg }
|
|
INT $10; { Get current crt mode }
|
|
POP BP; { Restore register }
|
|
PUSH AX; { Hold result }
|
|
MOV AX, $1130; { Set function id }
|
|
MOV BH, 0; { Zero register }
|
|
MOV DL, 0; { Zero register }
|
|
PUSH BP; { Safety!! save reg }
|
|
INT $10; { Get ext-video mode }
|
|
POP BP; { Restore register }
|
|
POP AX; { Recover held value }
|
|
MOV DH, AH; { Transfer high mode }
|
|
CMP DL, 25; { Check screen ht }
|
|
SBB AH, AH; { Subtract borrow }
|
|
INC AH; { Make #1 if in high }
|
|
MOV CL, 1; { Preset value of 1 }
|
|
OR DL, DL; { Test for zero }
|
|
JNZ @@1; { Branch if not zero }
|
|
MOV CL, 0 { Set value to zero }
|
|
MOV DL, 24; { Zero = 24 lines }
|
|
@@1:
|
|
INC DL; { Add one line }
|
|
MOV ScreenWidth, DH; { Hold screen width }
|
|
MOV ScreenHeight, DL; { Hold screen height }
|
|
MOV HiResScreen, CL; { Set hires mask }
|
|
CMP AL, smMono; { Is screen mono }
|
|
JZ @@Exit1; { Exit of mono }
|
|
CMP AL, smBW80; { Is screen B&W }
|
|
JZ @@Exit1; { Exit if B&W }
|
|
MOV AX, smCO80; { Else set to colour }
|
|
@@Exit1:
|
|
MOV ScreenMode, AX; { Hold screen mode }
|
|
END;
|
|
{$ENDIF}
|
|
{$IFDEF ASM_FPC} { FPC COMPATABLE ASM }
|
|
ASM
|
|
MOVB $0x0F, %AH; { Set function id }
|
|
PUSHL %EBP; { Save register }
|
|
INT $0x10; { Get current crt mode }
|
|
POPL %EBP; { Restore register }
|
|
PUSHL %EAX; { Hold result }
|
|
MOVW $0x1130, %AX; { Set function id }
|
|
MOVB $0, %BH; { Zero register }
|
|
MOVB $0, %DL; { Zero register }
|
|
PUSHL %EBP; { Safety!! save reg }
|
|
INT $0x10; { Get ext-video mode }
|
|
POPL %EBP; { Restore register }
|
|
POPL %EAX; { Recover held value }
|
|
MOVB %AH, %DH; { Transfer high mode }
|
|
CMPB $25, %DL; { Check screen ht }
|
|
SBB %AH, %AH; { Subtract borrow }
|
|
INCB %AH; { Make #1 if in high }
|
|
MOVB $1, %CL; { Preset value of 1 }
|
|
ORB %DL, %DL; { Test for zero }
|
|
JNZ .L_JMP1; { Branch if not zero }
|
|
MOVB $0, %CL; { Set value to zero }
|
|
MOVB $24, %DL; { Zero = 24 lines }
|
|
.L_JMP1:
|
|
INCB %DL; { Add one line }
|
|
MOVB %DH, SCREENWIDTH; { Hold screen width }
|
|
MOVB %DL, SCREENHEIGHT; { Hold screen height }
|
|
MOVB %CL, HIRESSCREEN; { Set hires mask }
|
|
CMPB $07, %AL; { Is screen mono }
|
|
JZ .L_Exit1; { Exit of mono }
|
|
CMPB $02, %AL; { Is screen B&W }
|
|
JZ .L_Exit1; { Exit if B&W }
|
|
MOVW $03, %AX; { Else set to colour }
|
|
.L_Exit1:
|
|
MOVW %AX, SCREENMODE; { Hold screen mode }
|
|
END;
|
|
{$ENDIF}
|
|
{$ENDIF}
|
|
{$IFDEF OS_WINDOWS} { WIN/NT CODE }
|
|
VAR Dc: HDC;
|
|
BEGIN
|
|
Dc := GetDc(0); { Get screen context }
|
|
If ((GetDeviceCaps(Dc, BitsPixel) > 1) OR { Colour capacity }
|
|
(GetDeviceCaps(Dc, Planes) > 1)) Then { Colour capacity }
|
|
ScreenMode := smCO80 Else ScreenMode := smMono; { Screen mode }
|
|
ReleaseDc(0, Dc); { Release context }
|
|
END;
|
|
{$ENDIF}
|
|
{$IFDEF OS_OS2} { OS2 CODE }
|
|
VAR Ps: Hps; Dc: Hdc; Colours: LongInt;
|
|
BEGIN
|
|
Ps := WinGetPS(HWND_Desktop); { Get desktop PS }
|
|
Dc := GpiQueryDevice(Ps); { Get gpi context }
|
|
DevQueryCaps(Dc, Caps_Phys_Colors, 1, Colours); { Colour capacity }
|
|
If (Colours> 2) Then ScreenMode := smCO80 { Colour screen }
|
|
Else ScreenMode := smMono; { Mono screen }
|
|
WinReleasePS(Ps); { Release desktop PS }
|
|
END;
|
|
{$ENDIF}
|
|
{$endif not Use_Video_API}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ DetectMouse -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 19May98 LdB }
|
|
FUNCTION DetectMouse: Byte;
|
|
begin
|
|
DetectMouse:=Mouse.DetectMouse;
|
|
end;
|
|
|
|
{***************************************************************************}
|
|
{ INTERFACE ROUTINES }
|
|
{***************************************************************************}
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ BUFFER MOVE ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ CStrLen -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25May96 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
FUNCTION CStrLen (Const S: String): Sw_Integer;
|
|
VAR I, J: Sw_Integer;
|
|
BEGIN
|
|
J := 0; { Set result to zero }
|
|
For I := 1 To Length(S) Do
|
|
If (S[I] <> '~') Then Inc(J); { Inc count if not ~ }
|
|
CStrLen := J; { Return length }
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ MoveStr -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10Jul99 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE MoveStr (Var Dest; Const Str: String; Attr: Byte);
|
|
VAR I: Word; P: PWord;
|
|
BEGIN
|
|
For I := 1 To Length(Str) Do Begin { For each character }
|
|
P := @TWordArray(Dest)[I-1]; { Pointer to Sw_Word }
|
|
If (Attr <> 0) Then WordRec(P^).Hi := Attr; { Copy attribute }
|
|
WordRec(P^).Lo := Byte(Str[I]); { Copy string char }
|
|
End;
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ MoveCStr -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10Jul99 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE MoveCStr (Var Dest; Const Str: String; Attrs: Word);
|
|
VAR B: Byte; I, J: Sw_Word; P: PWord;
|
|
BEGIN
|
|
J := 0; { Start position }
|
|
For I := 1 To Length(Str) Do Begin { For each character }
|
|
If (Str[I] <> '~') Then Begin { Not tilde character }
|
|
P := @TWordArray(Dest)[J]; { Pointer to Sw_Word }
|
|
If (Lo(Attrs) <> 0) Then
|
|
WordRec(P^).Hi := Lo(Attrs); { Copy attribute }
|
|
WordRec(P^).Lo := Byte(Str[I]); { Copy string char }
|
|
Inc(J); { Next position }
|
|
End Else Begin
|
|
B := Hi(Attrs); { Hold attribute }
|
|
WordRec(Attrs).Hi := Lo(Attrs); { Copy low to high }
|
|
WordRec(Attrs).Lo := B; { Complete exchange }
|
|
End;
|
|
End;
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ MoveBuf -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10Jul99 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE MoveBuf (Var Dest, Source; Attr: Byte; Count: Sw_Word);
|
|
VAR I: Word; P: PWord;
|
|
BEGIN
|
|
For I := 1 To Count Do Begin
|
|
P := @TWordArray(Dest)[I-1]; { Pointer to Sw_Word }
|
|
If (Attr <> 0) Then WordRec(P^).Hi := Attr; { Copy attribute }
|
|
WordRec(P^).Lo := TByteArray(Source)[I-1]; { Copy source data }
|
|
End;
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ MoveChar -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10Jul99 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE MoveChar (Var Dest; C: Char; Attr: Byte; Count: Sw_Word);
|
|
VAR I: Word; P: PWord;
|
|
BEGIN
|
|
For I := 1 To Count Do Begin
|
|
P := @TWordArray(Dest)[I-1]; { Pointer to Sw_Word }
|
|
If (Attr <> 0) Then WordRec(P^).Hi := Attr; { Copy attribute }
|
|
If (Ord(C) <> 0) Then WordRec(P^).Lo := Byte(C); { Copy character }
|
|
End;
|
|
END;
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ KEYBOARD SUPPORT ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ GetAltCode -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25May96 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
FUNCTION GetAltCode (Ch: Char): Word;
|
|
BEGIN
|
|
GetAltCode := 0; { Preset zero return }
|
|
Ch := UpCase(Ch); { Convert upper case }
|
|
If (Ch < #128) Then
|
|
GetAltCode := AltCodes[Ord(Ch)] SHL 8 { Return code }
|
|
Else If (Ch = #240) Then GetAltCode := $0200 { Return code }
|
|
Else GetAltCode := 0; { Return zero }
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ GetCtrlCode -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25May96 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
FUNCTION GetCtrlCode (Ch: Char): Word;
|
|
BEGIN
|
|
GetCtrlCode := GetAltCode(Ch) OR (Ord(Ch) - $40); { Ctrl+key code }
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ GetAltChar -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25May96 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
FUNCTION GetAltChar (KeyCode: Word): Char;
|
|
VAR I: Sw_Integer;
|
|
BEGIN
|
|
GetAltChar := #0; { Preset fail return }
|
|
If (Lo(KeyCode) = 0) Then Begin { Extended key }
|
|
If (Hi(KeyCode) <= $83) Then Begin { Highest value in list }
|
|
I := 0; { Start at first }
|
|
While (I < 128) AND (Hi(KeyCode) <> AltCodes[I])
|
|
Do Inc(I); { Search for match }
|
|
If (I < 128) Then GetAltChar := Chr(I); { Return character }
|
|
End Else
|
|
If (Hi(KeyCode)=$02) Then GetAltChar := #240; { Return char }
|
|
End;
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ GetCtrlChar -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25May96 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
FUNCTION GetCtrlChar (KeyCode: Word): Char;
|
|
VAR C: Char;
|
|
BEGIN
|
|
C := #0; { Preset #0 return }
|
|
If (Lo(KeyCode) > 0) AND (Lo(KeyCode) <= 26) Then { Between 1-26 }
|
|
C := Chr(Lo(KeyCode) + $40); { Return char A-Z }
|
|
GetCtrlChar := C; { Return result }
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ CtrlToArrow -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25May96 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
FUNCTION CtrlToArrow (KeyCode: Word): Word;
|
|
CONST NumCodes = 11;
|
|
CtrlCodes : Array [0..NumCodes-1] Of Char =
|
|
(#19, #4, #5, #24, #1, #6, #7, #22, #18, #3, #8);
|
|
ArrowCodes: Array [0..NumCodes-1] Of Sw_Word =
|
|
(kbLeft, kbRight, kbUp, kbDown, kbHome, kbEnd, kbDel, kbIns,
|
|
kbPgUp, kbPgDn, kbBack);
|
|
VAR I: Sw_Integer;
|
|
BEGIN
|
|
CtrlToArrow := KeyCode; { Preset key return }
|
|
For I := 0 To NumCodes - 1 Do
|
|
If WordRec(KeyCode).Lo = Byte(CtrlCodes[I]) { Matches a code }
|
|
Then Begin
|
|
CtrlToArrow := ArrowCodes[I]; { Return key stroke }
|
|
Exit; { Now exit }
|
|
End;
|
|
END;
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ KEYBOARD CONTROL ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ GetShiftState -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 08Jul96 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
FUNCTION GetShiftState: Byte;
|
|
begin
|
|
GetShiftState:=Keyboard.GetKeyEventShiftState(Keyboard.PollShiftStateEvent);
|
|
end;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ GetKeyEvent -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 19May98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
procedure GetKeyEvent (Var Event: TEvent);
|
|
var
|
|
key : TKeyEvent;
|
|
keycode : Word;
|
|
keyshift : byte;
|
|
begin
|
|
if Keyboard.PollKeyEvent<>0 then
|
|
begin
|
|
key:=Keyboard.GetKeyEvent;
|
|
keycode:=Keyboard.GetKeyEventCode(key);
|
|
keyshift:=KeyBoard.GetKeyEventShiftState(key);
|
|
{ fixup shift-keys }
|
|
if keyshift and kbShift<>0 then
|
|
begin
|
|
case keycode of
|
|
$5200 : keycode:=kbShiftIns;
|
|
$5300 : keycode:=kbShiftDel;
|
|
$8500 : keycode:=kbShiftF1;
|
|
$8600 : keycode:=kbShiftF2;
|
|
end;
|
|
end
|
|
{ fixup ctrl-keys }
|
|
else if keyshift and kbCtrl<>0 then
|
|
begin
|
|
case keycode of
|
|
$5200,
|
|
$9200 : keycode:=kbCtrlIns;
|
|
$5300,
|
|
$9300 : keycode:=kbCtrlDel;
|
|
end;
|
|
end
|
|
{ fixup alt-keys }
|
|
else if keyshift and kbAlt<>0 then
|
|
begin
|
|
case keycode of
|
|
$0e08,
|
|
$0e00 : keycode:=kbAltBack;
|
|
end;
|
|
end
|
|
{ fixup normal keys }
|
|
else
|
|
begin
|
|
case keycode of
|
|
$e00d : keycode:=kbEnter;
|
|
end;
|
|
end;
|
|
Event.What:=evKeyDown;
|
|
Event.KeyCode:=keycode;
|
|
{$ifdef ENDIAN_LITTLE}
|
|
Event.CharCode:=chr(keycode and $ff);
|
|
Event.ScanCode:=keycode shr 8;
|
|
{$endif ENDIAN_LITTLE}
|
|
Event.KeyShift:=keyshift;
|
|
end
|
|
else
|
|
Event.What:=evNothing;
|
|
end;
|
|
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ MOUSE CONTROL ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ HideMouse -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Jun98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
procedure HideMouse;
|
|
begin
|
|
{ Is mouse hidden yet?
|
|
If (HideCount = 0) Then}
|
|
Mouse.HideMouse;
|
|
{ Inc(HideCount);}
|
|
end;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ ShowMouse -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Jun98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
procedure ShowMouse;
|
|
begin
|
|
{ if HideCount>0 then
|
|
dec(HideCount);
|
|
if (HideCount=0) then}
|
|
Mouse.ShowMouse;
|
|
end;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ GetMouseEvent -> Platforms DOS/DPMI/WINDOWS/OS2 - Updated 30Jun98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
procedure GetMouseEvent (Var Event: TEvent);
|
|
var
|
|
e : Mouse.TMouseEvent;
|
|
begin
|
|
if Mouse.PollMouseEvent(e) then
|
|
begin
|
|
Mouse.GetMouseEvent(e);
|
|
MouseWhere.X:=e.x * SysFontWidth;
|
|
MouseWhere.Y:=e.y * SysFontHeight;
|
|
Event.Double:=false;
|
|
case e.Action of
|
|
MouseActionMove :
|
|
Event.What:=evMouseMove;
|
|
MouseActionDown :
|
|
begin
|
|
Event.What:=evMouseDown;
|
|
if (DownButtons=e.Buttons) and (LastWhere.X=MouseWhere.X) and (LastWhere.Y=MouseWhere.Y) and
|
|
(GetDosTicks-DownTicks<=DoubleDelay) then
|
|
Event.Double:=true;
|
|
DownButtons:=e.Buttons;
|
|
DownWhere.X:=MouseWhere.x;
|
|
DownWhere.Y:=MouseWhere.y;
|
|
DownTicks:=GetDosTicks;
|
|
AutoTicks:=GetDosTicks;
|
|
if AutoTicks=0 then
|
|
AutoTicks:=1;
|
|
AutoDelay:=RepeatDelay;
|
|
end;
|
|
MouseActionUp :
|
|
begin
|
|
AutoTicks:=0;
|
|
Event.What:=evMouseUp;
|
|
AutoTicks:=0;
|
|
end;
|
|
end;
|
|
Event.Buttons:=e.Buttons;
|
|
Event.Where.X:=MouseWhere.x;
|
|
Event.Where.Y:=MouseWhere.y;
|
|
LastButtons:=Event.Buttons;
|
|
LastWhere.x:=Event.Where.x;
|
|
LastWhere.y:=Event.Where.y;
|
|
end
|
|
else if (AutoTicks <> 0) and (GetDosTicks >= AutoTicks + AutoDelay) then
|
|
begin
|
|
Event.What:=evMouseAuto;
|
|
Event.Buttons:=LastButtons;
|
|
Event.Where.X:=LastWhere.x;
|
|
Event.Where.Y:=LastWhere.y;
|
|
AutoTicks:=GetDosTicks;
|
|
AutoDelay:=1;
|
|
end
|
|
else
|
|
FillChar(Event,sizeof(TEvent),0);
|
|
end;
|
|
|
|
{$ifdef HasSysMsgUnit}
|
|
{---------------------------------------------------------------------------}
|
|
{ GetSystemEvent }
|
|
{---------------------------------------------------------------------------}
|
|
procedure GetSystemEvent (Var Event: TEvent);
|
|
var
|
|
SysEvent : TsystemEvent;
|
|
begin
|
|
if PollSystemEvent(SysEvent) then
|
|
begin
|
|
SysMsg.GetSystemEvent(SysEvent);
|
|
case SysEvent.typ of
|
|
SysNothing :
|
|
Event.What:=evNothing;
|
|
SysSetFocus :
|
|
begin
|
|
Event.What:=evBroadcast;
|
|
Event.Command:=cmReceivedFocus;
|
|
end;
|
|
SysReleaseFocus :
|
|
begin
|
|
Event.What:=evBroadcast;
|
|
Event.Command:=cmReleasedFocus;
|
|
end;
|
|
SysClose :
|
|
begin
|
|
Event.What:=evCommand;
|
|
Event.Command:=cmQuitApp;
|
|
end;
|
|
SysResize :
|
|
begin
|
|
Event.What:=evCommand;
|
|
Event.Command:=cmResizeApp;
|
|
Event.Id:=SysEvent.x;
|
|
Event.InfoWord:=SysEvent.y;
|
|
end;
|
|
else
|
|
Event.What:=evNothing;
|
|
end;
|
|
end
|
|
else
|
|
Event.What:=evNothing;
|
|
end;
|
|
{$endif HasSysMsgUnit}
|
|
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ EVENT HANDLER CONTROL ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ InitEvents -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 07Sep99 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE InitEvents;
|
|
BEGIN
|
|
If (ButtonCount <> 0) Then
|
|
begin { Mouse is available }
|
|
Mouse.InitMouse; { Hook the mouse }
|
|
{ this is required by the use of HideCount variable }
|
|
Mouse.ShowMouse; { visible by default }
|
|
{ HideCount:=0; }
|
|
LastButtons := 0; { Clear last buttons }
|
|
DownButtons := 0; { Clear down buttons }
|
|
MouseWhere.X:=Mouse.GetMouseX;
|
|
MouseWhere.Y:=Mouse.GetMouseY; { Get mouse position }
|
|
LastWhere.x:=MouseWhere.x;
|
|
LastWhereX:=MouseWhere.x;
|
|
LastWhere.y:=MouseWhere.y;
|
|
LastWhereY:=MouseWhere.y;
|
|
MouseEvents := True; { Set initialized flag }
|
|
end;
|
|
{$ifdef HasSysMsgUnit}
|
|
InitSystemMsg;
|
|
{$endif HasSysMsgUnit}
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ DoneEvents -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Jul99 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE DoneEvents;
|
|
BEGIN
|
|
{$ifdef HasSysMsgUnit}
|
|
DoneSystemMsg;
|
|
{$endif HasSysMsgUnit}
|
|
Mouse.DoneMouse;
|
|
MouseEvents:=false;
|
|
END;
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ VIDEO CONTROL ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
const
|
|
VideoInitialized : boolean = false;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ InitVideo -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Nov99 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE InitVideo;
|
|
VAR
|
|
{$ifdef GRAPH_API}
|
|
I, J: Integer;
|
|
Ts : TextSettingsType;
|
|
{$else not GRAPH_API}
|
|
I, J: Integer;
|
|
{$IFDEF OS_WINDOWS}
|
|
Dc, Mem: HDc; TempFont: TLogFont; Tm: TTextmetric;
|
|
{$ENDIF}
|
|
{$IFDEF OS_OS2}
|
|
Ts, Fs: Sw_Integer; Ps: HPs; Tm: FontMetrics;
|
|
{$ENDIF}
|
|
{$ENDIF}
|
|
{$ifdef USE_VIDEO_API}
|
|
StoreScreenMode : TVideoMode;
|
|
|
|
{$endif USE_VIDEO_API}
|
|
BEGIN
|
|
if VideoInitialized then
|
|
begin
|
|
{$ifdef USE_VIDEO_API}
|
|
StoreScreenMode:=ScreenMode;
|
|
{$endif USE_VIDEO_API}
|
|
DoneVideo;
|
|
{$ifdef USE_VIDEO_API}
|
|
end
|
|
else
|
|
begin
|
|
StoreScreenMode.Col:=0;
|
|
{$endif USE_VIDEO_API}
|
|
end;
|
|
{$ifdef GRAPH_API}
|
|
if Not TextmodeGFV then
|
|
begin
|
|
{$ifdef go32v2}
|
|
I := VGA;
|
|
J := VGAHi;
|
|
{$else not go32v2}
|
|
{$ifdef win32}
|
|
I := VESA;
|
|
J := mLargestWindow16;
|
|
DefFontHeight:=8;
|
|
{$else not win32}
|
|
I := Detect; { Detect video card }
|
|
J := 0; { Zero select mode }
|
|
{$endif win32}
|
|
{$endif go32v2}
|
|
InitGraph(I, J, ''); { Initialize graphics }
|
|
I := Graph.GetMaxX; { Fetch max x size }
|
|
J := Graph.GetMaxY; { Fetch max y size }
|
|
If (DefFontHeight = 0) Then { Font height not set }
|
|
J := (Graph.GetMaxY+1) DIV DefLineNum { Approx font height }
|
|
Else J := DefFontHeight; { Use set font height }
|
|
I := J DIV (TextHeight('H')+4); { Approx magnification }
|
|
If (I < 1) Then I := 1; { Must be 1 or above }
|
|
GetTextSettings(Ts); { Get text style }
|
|
SetTextStyle(Ts.Font, Ts.Direction, I); { Set new font settings }
|
|
SysFontWidth := TextWidth('H'); { Transfer font width }
|
|
SysFontHeight := TextHeight('H')+4; { Transfer font height }
|
|
ScreenWidth := (Graph.GetMaxX+1) DIV
|
|
SysFontWidth; { Calc screen width }
|
|
if ScreenWidth > MaxViewWidth then
|
|
ScreenWidth := MaxViewWidth;
|
|
ScreenHeight := (Graph.GetMaxY+1) DIV
|
|
SysFontHeight; { Calc screen height }
|
|
UseFixedFont:=true;
|
|
{$ifdef USE_VIDEO_API}
|
|
if assigned(Video.VideoBuf) then
|
|
FreeMem(Video.VideoBuf);
|
|
GetMem(Video.VideoBuf,sizeof(word)*ScreenWidth*ScreenHeight);
|
|
if assigned(Video.OldVideoBuf) then
|
|
FreeMem(Video.OldVideoBuf);
|
|
GetMem(Video.OldVideoBuf,sizeof(word)*ScreenWidth*ScreenHeight);
|
|
GetMem(GFVGraph.SpVideoBuf,sizeof(pextrainfo)*(ScreenWidth+1)*(ScreenHeight+1));
|
|
FillChar(Video.VideoBuf^,sizeof(word)*ScreenWidth*ScreenHeight,#0);
|
|
FillChar(Video.OldVideoBuf^,sizeof(word)*ScreenWidth*ScreenHeight,#0);
|
|
FillChar(GFVGraph.SpVideoBuf^,sizeof(pextrainfo)*(ScreenWidth+1)*(ScreenHeight+1),#0);
|
|
ScreenMode.color:=true;
|
|
ScreenMode.col:=ScreenWidth;
|
|
ScreenMode.row:=ScreenHeight;
|
|
GfvGraph.SysFontWidth:=SysFontWidth;
|
|
GfvGraph.SysFontHeight:=SysFontHeight;
|
|
GfvGraph.TextScreenWidth:=ScreenWidth;
|
|
GfvGraph.TextScreenHeight:=ScreenHeight;
|
|
SetupExtraInfo;
|
|
{$endif USE_VIDEO_API}
|
|
{$ifdef win32}
|
|
SetGraphHooks;
|
|
{$endif}
|
|
end
|
|
else
|
|
{$endif GRAPH_API}
|
|
begin
|
|
Video.InitVideo;
|
|
{$ifdef USE_VIDEO_API}
|
|
GetVideoMode(ScreenMode);
|
|
|
|
If (StoreScreenMode.Col<>0) and
|
|
((StoreScreenMode.color<>ScreenMode.color) or
|
|
(StoreScreenMode.row<>ScreenMode.row) or
|
|
(StoreScreenMode.col<>ScreenMode.col)) then
|
|
begin
|
|
Video.SetVideoMode(StoreScreenMode);
|
|
GetVideoMode(ScreenMode);
|
|
end;
|
|
{$endif USE_VIDEO_API}
|
|
if ScreenWidth > MaxViewWidth then
|
|
ScreenWidth := MaxViewWidth;
|
|
ScreenWidth:=Video.ScreenWidth;
|
|
ScreenHeight:=Video.ScreenHeight;
|
|
SetViewPort(0,0,ScreenWidth,ScreenHeight,true,true);
|
|
I := ScreenWidth*8 -1; { Mouse width }
|
|
J := ScreenHeight*8 -1; { Mouse height }
|
|
SysScreenWidth := I + 1;
|
|
SysScreenHeight := J + 1;
|
|
SysFontWidth := 8; { Font width }
|
|
SysFontHeight := 8; { Font height }
|
|
end;
|
|
VideoInitialized:=true;
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ DoneVideo -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 19May98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE DoneVideo;
|
|
BEGIN
|
|
if not VideoInitialized then
|
|
exit;
|
|
{$ifdef GRAPH_API}
|
|
if Not TextmodeGFV then
|
|
begin
|
|
{$ifdef USE_VIDEO_API}
|
|
FreeMem(Video.VideoBuf,sizeof(word)*ScreenWidth*ScreenHeight);
|
|
Video.VideoBuf:=nil;
|
|
FreeMem(Video.OldVideoBuf,sizeof(word)*ScreenWidth*ScreenHeight);
|
|
Video.OldVideoBuf:=nil;
|
|
FreeExtraInfo;
|
|
{$endif USE_VIDEO_API}
|
|
CloseGraph;
|
|
{$ifdef win32}
|
|
UnsetGraphHooks;
|
|
{$endif}
|
|
end
|
|
else
|
|
{$endif GRAPH_API}
|
|
{$ifdef USE_video_api}
|
|
Video.DoneVideo;
|
|
{$else not USE_video_api}
|
|
; { nothing to do }
|
|
{$endif not USE_video_api}
|
|
VideoInitialized:=false;
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ ClearScreen -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Jan97 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE ClearScreen;
|
|
BEGIN
|
|
{$ifdef GRAPH_API}
|
|
if Not TextmodeGFV then
|
|
begin
|
|
Graph.ClearDevice;
|
|
end
|
|
else
|
|
{$endif GRAPH_API}
|
|
{$ifdef USE_video_api}
|
|
Video.ClearScreen;
|
|
{$else not USE_video_api}
|
|
; { nothing to do }
|
|
{$endif not USE_video_api}
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ SetVideoMode -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 10Nov99 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE SetVideoMode (Mode: Sw_Word);
|
|
BEGIN
|
|
If (Mode > $100) Then DefLineNum := 50 { 50 line mode request }
|
|
Else DefLineNum := 24; { Normal 24 line mode }
|
|
END;
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ ERROR CONTROL ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ InitSysError -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 20May98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE InitSysError;
|
|
BEGIN
|
|
SysErrActive := True; { Set active flag }
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ DoneSysError -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 20May98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE DoneSysError;
|
|
BEGIN
|
|
SysErrActive := False; { Clear active flag }
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ SystemError -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 20May98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
FUNCTION SystemError (ErrorCode: Sw_Integer; Drive: Byte): Sw_Integer;
|
|
BEGIN
|
|
If (FailSysErrors = False) Then Begin { Check error ignore }
|
|
|
|
End Else SystemError := 1; { Return 1 for ignored }
|
|
END;
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ STRING FORMAT ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ PrintStr -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 18Feb99 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE PrintStr (CONST S: String);
|
|
BEGIN
|
|
Write(S); { Write to screen }
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ FormatStr -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 13Jul99 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE FormatStr (Var Result: String; CONST Format: String; Var Params);
|
|
TYPE TLongArray = Array[0..0] Of LongInt;
|
|
VAR ResultLength, FormatIndex, Justify, Wth: Byte; Fill: Char; S: String;
|
|
|
|
FUNCTION LongToStr (L: Longint; Radix: Byte): String;
|
|
CONST HexChars: Array[0..15] Of Char =
|
|
('0', '1', '2', '3', '4', '5', '6', '7',
|
|
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F');
|
|
VAR I: LongInt; S: String; Sign: String[1];
|
|
BEGIN
|
|
LongToStr := ''; { Preset empty return }
|
|
If (L < 0) Then Begin { If L is negative }
|
|
Sign := '-'; { Sign is negative }
|
|
L := Abs(L); { Convert to positive }
|
|
End Else Sign := ''; { Sign is empty }
|
|
S := ''; { Preset empty string }
|
|
Repeat
|
|
I := L MOD Radix; { Radix mod of value }
|
|
S := HexChars[I] + S; { Add char to string }
|
|
L := L DIV Radix; { Divid by radix }
|
|
Until (L = 0); { Until no remainder }
|
|
LongToStr := Sign + S; { Return result }
|
|
END;
|
|
|
|
PROCEDURE HandleParameter (I : LongInt);
|
|
BEGIN
|
|
While (FormatIndex <= Length(Format)) Do Begin { While length valid }
|
|
While (Format[FormatIndex] <> '%') AND { Param char not found }
|
|
(FormatIndex <= Length(Format)) Do Begin { Length still valid }
|
|
Result[ResultLength+1] := Format[FormatIndex]; { Transfer character }
|
|
Inc(ResultLength); { One character added }
|
|
Inc(FormatIndex); { Next param char }
|
|
End;
|
|
If (FormatIndex < Length(Format)) AND { Not last char and }
|
|
(Format[FormatIndex] = '%') Then Begin { '%' char found }
|
|
Fill := ' '; { Default fill char }
|
|
Justify := 0; { Default justify }
|
|
Wth := 0; { Default 0=no width }
|
|
Inc(FormatIndex); { Next character }
|
|
If (Format[FormatIndex] = '0') Then
|
|
Fill := '0'; { Fill char to zero }
|
|
If (Format[FormatIndex] = '-') Then Begin { Optional just char }
|
|
Justify := 1; { Right justify }
|
|
Inc(FormatIndex); { Next character }
|
|
End;
|
|
While ((FormatIndex <= Length(Format)) AND { Length still valid }
|
|
(Format[FormatIndex] >= '0') AND
|
|
(Format[FormatIndex] <= '9')) Do Begin { Numeric character }
|
|
Wth := Wth * 10; { Multiply x10 }
|
|
Wth := Wth + Ord(Format[FormatIndex])-$30; { Add numeric value }
|
|
Inc(FormatIndex); { Next character }
|
|
End;
|
|
If ((FormatIndex <= Length(Format)) AND { Length still valid }
|
|
(Format[FormatIndex] = '#')) Then Begin { Parameter marker }
|
|
Inc(FormatIndex); { Next character }
|
|
HandleParameter(Wth); { Width is param idx }
|
|
End;
|
|
If (FormatIndex <= Length(Format)) Then Begin{ Length still valid }
|
|
Case Format[FormatIndex] Of
|
|
'c': S := Char(TLongArray(Params)[I]); { Character parameter }
|
|
'd': S := LongToStr(TLongArray(Params)[I],
|
|
10); { Decimal parameter }
|
|
's': S := PString(TLongArray(Params)[I])^;{ String parameter }
|
|
'x': S := LongToStr(TLongArray(Params)[I],
|
|
16); { Hex parameter }
|
|
'%': Begin { Literal % }
|
|
S := '%'; { Set string }
|
|
Inc(FormatIndex); { Next character }
|
|
Move(S[1], Result[ResultLength+1], 1); { '%' char to result }
|
|
Inc(ResultLength, Length(S)); { Inc result length }
|
|
Continue; { Now continue }
|
|
End;
|
|
End;
|
|
Inc(I); { Next parameter }
|
|
Inc(FormatIndex); { Next character }
|
|
If (Wth > 0) Then Begin { Width control active }
|
|
If (Length(S) > Wth) Then Begin { We must shorten S }
|
|
If (Justify=1) Then { Check right justify }
|
|
S := Copy(S, Length(S)-Wth+1, Wth) { Take right side data }
|
|
Else S := Copy(S, 1, Wth); { Take left side data }
|
|
End Else Begin { We must pad out S }
|
|
If (Justify=1) Then { Right justify }
|
|
While (Length(S) < Wth) Do
|
|
S := S+Fill Else { Right justify fill }
|
|
While (Length(S) < Wth) Do
|
|
S := Fill + S; { Left justify fill }
|
|
End;
|
|
End;
|
|
Move(S[1], Result[ResultLength+1],
|
|
Length(S)); { Move data to result }
|
|
ResultLength := ResultLength + Length(S); { Adj result length }
|
|
End;
|
|
End;
|
|
End;
|
|
END;
|
|
|
|
BEGIN
|
|
ResultLength := 0; { Zero result length }
|
|
FormatIndex := 1; { Format index to 1 }
|
|
HandleParameter(0); { Handle parameter }
|
|
SetLength(Result, ResultLength); { Set string length }
|
|
END;
|
|
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
{ NEW QUEUED EVENT HANDLER ROUTINES }
|
|
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ PutEventInQueue -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 17Mar98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
FUNCTION PutEventInQueue (Var Event: TEvent): Boolean;
|
|
BEGIN
|
|
If (QueueCount < QueueMax) Then Begin { Check room in queue }
|
|
Queue[QueueHead] := Event; { Store event }
|
|
Inc(QueueHead); { Inc head position }
|
|
If (QueueHead = QueueMax) Then QueueHead := 0; { Roll to start check }
|
|
Inc(QueueCount); { Inc queue count }
|
|
PutEventInQueue := True; { Return successful }
|
|
End Else PutEventInQueue := False; { Return failure }
|
|
END;
|
|
|
|
{---------------------------------------------------------------------------}
|
|
{ NextQueuedEvent -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 17Mar98 LdB }
|
|
{---------------------------------------------------------------------------}
|
|
PROCEDURE NextQueuedEvent(Var Event: TEvent);
|
|
BEGIN
|
|
If (QueueCount > 0) Then Begin { Check queued event }
|
|
Event := Queue[QueueTail]; { Fetch next event }
|
|
Inc(QueueTail); { Inc tail position }
|
|
If (QueueTail = QueueMax) Then QueueTail := 0; { Roll to start check }
|
|
Dec(QueueCount); { Dec queue count }
|
|
End Else Event.What := evNothing; { Return empty event }
|
|
END;
|
|
|
|
{***************************************************************************}
|
|
{ UNIT INITIALIZATION ROUTINE }
|
|
{***************************************************************************}
|
|
BEGIN
|
|
ButtonCount := DetectMouse; { Detect mouse }
|
|
DetectVideo; { Detect video }
|
|
{ text mode is the default mode }
|
|
TextModeGFV:=True;
|
|
InitKeyboard;
|
|
{$ifdef Graph_API}
|
|
TextModeGFV:=false;
|
|
{$endif Graph_API}
|
|
{$ifdef HasSysMsgUnit}
|
|
InitSystemMsg;
|
|
{$endif HasSysMsgUnit}
|
|
{$ifdef win32}
|
|
SetFileApisToOEM;
|
|
SetConsoleCP(437);
|
|
SetConsoleOutputCP(437);
|
|
{$endif}
|
|
|
|
SaveExit := ExitProc; { Save old exit }
|
|
ExitProc := @ExitDrivers; { Set new exit }
|
|
END.
|
|
{
|
|
$Log$
|
|
Revision 1.38 2003-10-01 16:20:27 marco
|
|
* baseunix fixes for 1.1
|
|
|
|
Revision 1.37 2002/10/17 11:22:46 pierre
|
|
* fix a problem in InitVideo with StoreVideoMode
|
|
|
|
Revision 1.36 2002/10/07 15:44:43 pierre
|
|
* consider endianess for KeyCode/CharCode-ScanCode pairs
|
|
|
|
Revision 1.35 2002/09/22 19:42:22 hajny
|
|
+ FPC/2 support added
|
|
|
|
Revision 1.34 2002/09/13 22:24:30 pierre
|
|
* fix Alt+'9' recognition in GetAltChar function
|
|
|
|
Revision 1.33 2002/09/13 09:21:15 pierre
|
|
* don't call InitVideo in DetectVideo procedure
|
|
|
|
Revision 1.32 2002/09/09 08:04:05 pierre
|
|
* remove all warnings about far
|
|
|
|
Revision 1.31 2002/09/07 15:06:36 peter
|
|
* old logs removed and tabs fixed
|
|
|
|
Revision 1.30 2002/06/10 19:40:14 pierre
|
|
* add DoneMouse in DoneEvents
|
|
|
|
Revision 1.29 2002/06/10 18:16:55 pierre
|
|
* set Event.What to evNothing if no event in GetSystemEvent
|
|
|
|
Revision 1.28 2002/06/07 14:08:28 pierre
|
|
* try to get resizing to work
|
|
|
|
Revision 1.27 2002/06/06 20:33:35 pierre
|
|
* remove system event by calling sysmsg.getsystemevent
|
|
|
|
Revision 1.26 2002/06/06 13:57:50 pierre
|
|
+ activate/desactivate system messages
|
|
|
|
Revision 1.25 2002/06/06 06:43:29 pierre
|
|
* avoid more than 132 columns, to avoid TDrawBuffer overrun
|
|
|
|
Revision 1.24 2002/06/04 11:12:41 marco
|
|
* Renamefest
|
|
|
|
Revision 1.23 2002/05/31 12:38:37 pierre
|
|
* try to enhance graph mode
|
|
|
|
Revision 1.22 2002/05/29 21:21:54 pierre
|
|
* Use VGAHi for go32v2 graph version for now
|
|
|
|
Revision 1.21 2002/05/29 19:36:12 pierre
|
|
* fix graph related problems
|
|
|
|
Revision 1.20 2002/05/28 19:14:35 pierre
|
|
* adapt to new GraphUpdateScreen function
|
|
|
|
Revision 1.19 2002/05/24 10:36:52 pierre
|
|
* Try to enhance win32 special chars support
|
|
|
|
Revision 1.18 2002/05/24 09:36:33 pierre
|
|
+ use win32gr unit to add mouse and keyboard support for win32 graph
|
|
|
|
Revision 1.17 2002/05/23 15:07:31 pierre
|
|
* compute graphic size correctly
|
|
|
|
Revision 1.16 2002/05/23 06:34:06 pierre
|
|
* fix go32v2 build failure
|
|
|
|
Revision 1.15 2002/05/21 12:21:53 pierre
|
|
* fix various graphic problems
|
|
|
|
Revision 1.14 2002/05/16 20:21:50 pierre
|
|
+ fix for bug report 1953 adapted from S Wiktor
|
|
|
|
}
|
|
{******************[ REVISION HISTORY ]********************}
|
|
{ Version Date Fix }
|
|
{ ------- --------- --------------------------------- }
|
|
{ 1.00 26 Jul 96 First DOS/DPMI platform release }
|
|
{ 1.10 18 Nov 97 Windows conversion added. }
|
|
{ 1.20 29 Aug 97 Platform.inc sort added. }
|
|
{ 1.30 10 Jun 98 Virtual pascal 2.0 code added. }
|
|
{ 1.40 13 Jul 98 Added FormatStr by Marco Schmidt. }
|
|
{ 1.50 14 Jul 98 Fixed width = 0 in FormatStr. }
|
|
{ 1.60 13 Aug 98 Complete rewrite of FormatStr. }
|
|
{ 1.70 10 Sep 98 Added mouse int hook for FPC. }
|
|
{ 1.80 10 Sep 98 Checks run & commenting added. }
|
|
{ 1.90 15 Oct 98 Fixed for FPC version 0.998 }
|
|
{ 1.91 18 Feb 99 Added PrintStr functions }
|
|
{ 1.92 18 Feb 99 FormatStr literal '%' fix added }
|
|
{ 1.93 10 Jul 99 Sybil 2.0 code added }
|
|
{ 1.94 15 Jul 99 Fixed for FPC 0.9912 release }
|
|
{ 1.95 26 Jul 99 Windows..Scales to GFV system font }
|
|
{ 1.96 30 Jul 99 Fixed Ctrl+F1..F10 in GetKeyEvent }
|
|
{ 1.97 07 Sep 99 InitEvent, DoneEvent fixed for OS2 }
|
|
{ 1.98 09 Sep 99 GetMouseEvent fixed for OS2. }
|
|
{ 1.99 03 Nov 99 FPC windows support added. }
|
|
{ 2.00 26 Nov 99 Graphics stuff moved to GFVGraph }
|
|
{ 2.01 21 May 00 DOS fixed to use std GRAPH unit }
|
|
{**********************************************************}
|