340 lines
11 KiB
Plaintext
340 lines
11 KiB
Plaintext
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{*******************************************************}
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{ }
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{ Turbo Pascal Version 5.0 }
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{ Graph Interface Unit }
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{ }
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{ Copyright (C) 1987,88 Borland International }
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{ }
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{*******************************************************}
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unit Graph;
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interface
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const
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{ GraphResult error return codes: }
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grOk = 0;
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grNoInitGraph = -1;
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grNotDetected = -2;
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grFileNotFound = -3;
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grInvalidDriver = -4;
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grNoLoadMem = -5;
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grNoScanMem = -6;
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grNoFloodMem = -7;
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grFontNotFound = -8;
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grNoFontMem = -9;
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grInvalidMode = -10;
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grError = -11; { generic error }
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grIOerror = -12;
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grInvalidFont = -13;
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grInvalidFontNum = -14;
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{ define graphics drivers }
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CurrentDriver = -128; { passed to GetModeRange }
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Detect = 0; { requests autodetection }
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CGA = 1;
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MCGA = 2;
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EGA = 3;
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EGA64 = 4;
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EGAMono = 5;
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IBM8514 = 6;
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HercMono = 7;
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ATT400 = 8;
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VGA = 9;
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PC3270 = 10;
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{ graphics modes for each driver }
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CGAC0 = 0; { 320x200 palette 0: LightGreen, LightRed, Yellow; 1 page }
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CGAC1 = 1; { 320x200 palette 1: LightCyan, LightMagenta, White; 1 page }
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CGAC2 = 2; { 320x200 palette 2: Green, Red, Brown; 1 page }
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CGAC3 = 3; { 320x200 palette 3: Cyan, Magenta, LightGray; 1 page }
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CGAHi = 4; { 640x200 1 page }
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MCGAC0 = 0; { 320x200 palette 0: LightGreen, LightRed, Yellow; 1 page }
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MCGAC1 = 1; { 320x200 palette 1: LightCyan, LightMagenta, White; 1 page }
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MCGAC2 = 2; { 320x200 palette 2: Green, Red, Brown; 1 page }
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MCGAC3 = 3; { 320x200 palette 3: Cyan, Magenta, LightGray; 1 page }
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MCGAMed = 4; { 640x200 1 page }
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MCGAHi = 5; { 640x480 1 page }
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EGALo = 0; { 640x200 16 color 4 page }
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EGAHi = 1; { 640x350 16 color 2 page }
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EGA64Lo = 0; { 640x200 16 color 1 page }
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EGA64Hi = 1; { 640x350 4 color 1 page }
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EGAMonoHi = 3; { 640x350 64K on card, 1 page; 256K on card, 2 page }
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HercMonoHi = 0; { 720x348 2 page }
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ATT400C0 = 0; { 320x200 palette 0: LightGreen, LightRed, Yellow; 1 page }
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ATT400C1 = 1; { 320x200 palette 1: LightCyan, LightMagenta, White; 1 page }
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ATT400C2 = 2; { 320x200 palette 2: Green, Red, Brown; 1 page }
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ATT400C3 = 3; { 320x200 palette 3: Cyan, Magenta, LightGray; 1 page }
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ATT400Med = 4; { 640x200 1 page }
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ATT400Hi = 5; { 640x400 1 page }
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VGALo = 0; { 640x200 16 color 4 page }
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VGAMed = 1; { 640x350 16 color 2 page }
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VGAHi = 2; { 640x480 16 color 1 page }
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PC3270Hi = 0; { 720x350 1 page }
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IBM8514LO = 0; { 640x480 256 colors }
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IBM8514HI = 1; { 1024x768 256 colors }
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{ Colors for SetPalette and SetAllPalette: }
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Black = 0;
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Blue = 1;
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Green = 2;
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Cyan = 3;
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Red = 4;
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Magenta = 5;
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Brown = 6;
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LightGray = 7;
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DarkGray = 8;
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LightBlue = 9;
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LightGreen = 10;
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LightCyan = 11;
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LightRed = 12;
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LightMagenta = 13;
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Yellow = 14;
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White = 15;
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{ colors for 8514 to set standard EGA colors w/o knowing their values }
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EGABlack = 0; { dark colors }
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EGABlue = 1;
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EGAGreen = 2;
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EGACyan = 3;
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EGARed = 4;
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EGAMagenta = 5;
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EGABrown = 20;
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EGALightgray = 7;
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EGADarkgray = 56; { light colors }
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EGALightblue = 57;
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EGALightgreen = 58;
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EGALightcyan = 59;
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EGALightred = 60;
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EGALightmagenta = 61;
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EGAYellow = 62;
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EGAWhite = 63;
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{ Line styles and widths for Get/SetLineStyle: }
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SolidLn = 0;
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DottedLn = 1;
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CenterLn = 2;
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DashedLn = 3;
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UserBitLn = 4; { User-defined line style }
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NormWidth = 1;
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ThickWidth = 3;
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{ Set/GetTextStyle constants: }
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DefaultFont = 0; { 8x8 bit mapped font }
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TriplexFont = 1; { "Stroked" fonts }
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SmallFont = 2;
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SansSerifFont = 3;
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GothicFont = 4;
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HorizDir = 0; { left to right }
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VertDir = 1; { bottom to top }
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UserCharSize = 0; { user-defined char size }
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{ Clipping constants: }
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ClipOn = true;
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ClipOff = false;
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{ Bar3D constants: }
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TopOn = true;
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TopOff = false;
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{ Fill patterns for Get/SetFillStyle: }
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EmptyFill = 0; { fills area in background color }
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SolidFill = 1; { fills area in solid fill color }
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LineFill = 2; { --- fill }
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LtSlashFill = 3; { /// fill }
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SlashFill = 4; { /// fill with thick lines }
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BkSlashFill = 5; { \\\ fill with thick lines }
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LtBkSlashFill = 6; { \\\ fill }
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HatchFill = 7; { light hatch fill }
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XHatchFill = 8; { heavy cross hatch fill }
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InterleaveFill = 9; { interleaving line fill }
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WideDotFill = 10; { Widely spaced dot fill }
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CloseDotFill = 11; { Closely spaced dot fill }
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UserFill = 12; { user defined fill }
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{ BitBlt operators for PutImage: }
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NormalPut = 0; { MOV } { left for 1.0 compatibility }
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CopyPut = 0; { MOV }
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XORPut = 1; { XOR }
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OrPut = 2; { OR }
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AndPut = 3; { AND }
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NotPut = 4; { NOT }
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{ Horizontal and vertical justification for SetTextJustify: }
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LeftText = 0;
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CenterText = 1;
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RightText = 2;
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BottomText = 0;
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{ CenterText = 1; already defined above }
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TopText = 2;
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const
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MaxColors = 15;
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type
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PaletteType = record
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Size : byte;
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Colors : array[0..MaxColors] of shortint;
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end;
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LineSettingsType = record
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LineStyle : word;
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Pattern : word;
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Thickness : word;
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end;
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TextSettingsType = record
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Font : word;
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Direction : word;
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CharSize : word;
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Horiz : word;
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Vert : word;
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end;
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FillSettingsType = record { Pre-defined fill style }
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Pattern : word;
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Color : word;
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end;
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FillPatternType = array[1..8] of byte; { User defined fill style }
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PointType = record
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X, Y : integer;
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end;
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ViewPortType = record
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x1, y1, x2, y2 : integer;
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Clip : boolean;
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end;
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ArcCoordsType = record
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X, Y : integer;
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Xstart, Ystart : integer;
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Xend, Yend : integer;
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end;
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var
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GraphGetMemPtr : Pointer; { allows user to steal heap allocation }
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GraphFreeMemPtr : Pointer; { allows user to steal heap de-allocation }
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{ *** high-level error handling *** }
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function GraphErrorMsg(ErrorCode : integer) : String;
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function GraphResult : integer;
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{ *** detection, initialization and crt mode routines *** }
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procedure DetectGraph(var GraphDriver, GraphMode : integer);
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function GetDriverName : string;
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procedure InitGraph(var GraphDriver : integer;
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var GraphMode : integer;
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PathToDriver : String);
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function RegisterBGIfont(Font : pointer) : integer;
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function RegisterBGIdriver(Driver : pointer) : integer;
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function InstallUserDriver(DriverFileName : string;
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AutoDetectPtr : pointer) : integer;
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function InstallUserFont(FontFileName : string) : integer;
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procedure SetGraphBufSize(BufSize : word);
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function GetMaxMode : integer;
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procedure GetModeRange(GraphDriver : integer; var LoMode, HiMode : integer);
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function GetModeName(GraphMode : integer) : string;
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procedure SetGraphMode(Mode : integer);
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function GetGraphMode : integer;
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procedure GraphDefaults;
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procedure RestoreCrtMode;
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procedure CloseGraph;
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function GetX : integer;
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function GetY : integer;
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function GetMaxX : integer;
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function GetMaxY : integer;
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{ *** Screen, viewport, page routines *** }
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procedure ClearDevice;
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procedure SetViewPort(x1, y1, x2, y2 : integer; Clip : boolean);
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procedure GetViewSettings(var ViewPort : ViewPortType);
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procedure ClearViewPort;
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procedure SetVisualPage(Page : word);
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procedure SetActivePage(Page : word);
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{ *** point-oriented routines *** }
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procedure PutPixel(X, Y : integer; Pixel : word);
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function GetPixel(X, Y : integer) : word;
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{ *** line-oriented routines *** }
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procedure SetWriteMode(WriteMode : integer);
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procedure LineTo(X, Y : integer);
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procedure LineRel(Dx, Dy : integer);
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procedure MoveTo(X, Y : integer);
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procedure MoveRel(Dx, Dy : integer);
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procedure Line(x1, y1, x2, y2 : integer);
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procedure GetLineSettings(var LineInfo : LineSettingsType);
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procedure SetLineStyle(LineStyle : word;
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Pattern : word;
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Thickness : word);
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{ *** polygon, fills and figures *** }
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procedure Rectangle(x1, y1, x2, y2 : integer);
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procedure Bar(x1, y1, x2, y2 : integer);
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procedure Bar3D(x1, y1, x2, y2 : integer; Depth : word; Top : boolean);
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procedure DrawPoly(NumPoints : word; var PolyPoints);
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procedure FillPoly(NumPoints : word; var PolyPoints);
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procedure GetFillSettings(var FillInfo : FillSettingsType);
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procedure GetFillPattern(var FillPattern : FillPatternType);
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procedure SetFillStyle(Pattern : word; Color : word);
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procedure SetFillPattern(Pattern : FillPatternType; Color : word);
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procedure FloodFill(X, Y : integer; Border : word);
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{ *** arc, circle, and other curves *** }
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procedure Arc(X, Y : integer; StAngle, EndAngle, Radius : word);
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procedure GetArcCoords(var ArcCoords : ArcCoordsType);
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procedure Circle(X, Y : integer; Radius : word);
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procedure Ellipse(X, Y : integer;
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StAngle, EndAngle : word;
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XRadius, YRadius : word);
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procedure FillEllipse(X, Y : integer;
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XRadius, YRadius : word);
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procedure GetAspectRatio(var Xasp, Yasp : word);
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procedure SetAspectRatio(Xasp, Yasp : word);
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procedure PieSlice(X, Y : integer; StAngle, EndAngle, Radius : word);
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procedure Sector(X, Y : Integer;
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StAngle, EndAngle,
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XRadius, YRadius : word);
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{ *** color and palette routines *** }
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procedure SetBkColor(ColorNum : word);
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procedure SetColor(Color : word);
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function GetBkColor : word;
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function GetColor : word;
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procedure SetAllPalette(var Palette);
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procedure SetPalette(ColorNum : word; Color : shortint);
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procedure GetPalette(var Palette : PaletteType);
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function GetPaletteSize : integer;
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procedure GetDefaultPalette(var Palette : PaletteType);
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function GetMaxColor : word;
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procedure SetRGBPalette(ColorNum, RedValue, GreenValue, BlueValue : integer);
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{ *** bit-image routines *** }
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function ImageSize(x1, y1, x2, y2 : integer) : word;
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procedure GetImage(x1, y1, x2, y2 : integer; var BitMap);
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procedure PutImage(X, Y : integer; var BitMap; BitBlt : word);
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{ *** text routines *** }
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procedure GetTextSettings(var TextInfo : TextSettingsType);
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procedure OutText(TextString : string);
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procedure OutTextXY(X, Y : integer; TextString : string);
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procedure SetTextJustify(Horiz, Vert : word);
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procedure SetTextStyle(Font, Direction : word; CharSize : word);
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procedure SetUserCharSize(MultX, DivX, MultY, DivY : word);
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function TextHeight(TextString : string) : word;
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function TextWidth(TextString : string) : word;
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