| [7] | 1 | UNIT Clocks;
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| 2 |
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| 3 | INTERFACE
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| 4 |
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| 5 | USES Dos,Classes,Forms;
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| 6 |
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| 7 | TYPE TAnalogClock=CLASS(TControl)
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| 8 | PRIVATE
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| 9 | FVertRes,FHorzRes:LONGINT;
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| 10 | FCXPixel,FCYPixel:LONGINT;
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| 11 | FHour,FMinute,FSecond,FSec100:WORD;
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| 12 | FTimer:TTimer;
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| 13 | FHourColor,FMinuteColor,FSecondColor:TColor;
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| 14 | PROCEDURE MakePoints(VAR pts:ARRAY OF TPoint;Count,Angle:LONGINT);
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| 15 | PROCEDURE DrawHand(pts:ARRAY OF TPoint;Value:WORD);
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| 16 | PROPERTY Caption;
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| 17 | PROPERTY Font;
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| 18 | PROTECTED
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| 19 | PROCEDURE SetupComponent;OVERRIDE;
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| 20 | PROCEDURE SetupShow;OVERRIDE;
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| 21 | PROCEDURE Resize;OVERRIDE;
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| 22 | PROCEDURE TimerEvent(Sender:TObject);
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| 23 | PUBLIC
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| 24 | DESTRUCTOR Destroy;OVERRIDE;
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| 25 | PROCEDURE Redraw(CONST rec:TRect);OVERRIDE;
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| 26 | PUBLISHED
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| 27 | PROPERTY Align;
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| 28 | PROPERTY Color;
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| 29 | PROPERTY PenColor;
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| 30 | PROPERTY DragCursor;
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| 31 | PROPERTY DragMode;
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| 32 | PROPERTY ParentColor;
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| 33 | PROPERTY ParentPenColor;
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| 34 | PROPERTY ParentShowHint;
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| 35 | PROPERTY ShowHint;
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| 36 | PROPERTY Visible;
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| 37 | PROPERTY ZOrder;
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| 38 |
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| 39 | PROPERTY OnCanDrag;
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| 40 | PROPERTY OnDragDrop;
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| 41 | PROPERTY OnDragOver;
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| 42 | PROPERTY OnEndDrag;
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| 43 | PROPERTY OnEnter;
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| 44 | PROPERTY OnExit;
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| 45 | PROPERTY OnMouseClick;
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| 46 | PROPERTY OnMouseDblClick;
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| 47 | PROPERTY OnMouseDown;
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| 48 | PROPERTY OnMouseMove;
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| 49 | PROPERTY OnMouseUp;
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| 50 | PROPERTY OnResize;
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| 51 | PROPERTY OnSetupShow;
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| 52 | PROPERTY OnStartDrag;
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| 53 | PROPERTY HourColor:TColor read FHourColor write FHourColor;
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| 54 | PROPERTY MinuteColor:TColor read FMinuteColor write FMinuteColor;
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| 55 | PROPERTY SecondColor:TColor read FSecondColor write FSecondColor;
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| 56 | END;
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| 57 |
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| 58 | IMPLEMENTATION
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| 59 |
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| 60 | {
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| 61 | ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
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| 62 | º º
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| 63 | º Speed-Pascal/2 Version 2.0 º
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| 64 | º º
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| 65 | º Speed-Pascal Component Classes (SPCC) º
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| 66 | º º
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| 67 | º This section: TAnalogClock Class implementation º
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| 68 | º º
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| 69 | º Last modified: September 1995 º
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| 70 | º º
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| 71 | º (C) 1995 SpeedSoft. All rights reserved. Disclosure probibited ! º
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| 72 | º º
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| 73 | ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍŒ
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| 74 | }
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| 75 |
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| 76 | CONST aptlHour:ARRAY[0..4] OF TPoint=((X:0;Y:-15),(x:7;y:0),(x:0;y:60),
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| 77 | (x:-7;y:0),(x:0;y:-15));
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| 78 | aptlMinute:ARRAY[0..4] OF TPoint=((X:0;Y:-20),(X:5;Y:0),(X:0;Y:80),
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| 79 | (X:-5;Y:0),(X:0;Y:-20));
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| 80 | aptlSecond:ARRAY[0..1] OF TPoint=((X:0;Y:0),(X:0;Y:80));
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| 81 |
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| 82 | PROCEDURE TAnalogClock.SetupComponent;
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| 83 | BEGIN
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| 84 | Inherited SetupComponent;
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| 85 |
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| 86 | Name := 'AnalogClock';
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| 87 | FTimer.Create(SELF);
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| 88 | Include(FTimer.ComponentState,csDetail);
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| 89 | FTimer.Interval:=1000;
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| 90 | Color:=clBlack;
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| 91 | FHourColor:=clBlack;
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| 92 | FMinuteColor:=clBlack;
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| 93 | FSecondColor:=clBlack;
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| 94 | ParentColor:=TRUE;
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| 95 | Width:=150;
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| 96 | Height:=150;
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| 97 | END;
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| 98 |
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| 99 | DESTRUCTOR TAnalogClock.Destroy;
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| 100 | BEGIN
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| 101 | FTimer.Destroy;
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| 102 | FTimer:=NIL;
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| 103 | Inherited Destroy;
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| 104 | END;
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| 105 |
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| 106 | PROCEDURE TAnalogClock.TimerEvent(Sender:TObject);
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| 107 | VAR Hour,Minute,Second,Sec100:WORD;
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| 108 | BEGIN
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| 109 | IF Handle=0 THEN exit;
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| 110 |
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| 111 | IF TTimer(Sender)=FTimer THEN
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| 112 | BEGIN
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| 113 | GetTime(Hour,Minute,Second,Sec100);
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| 114 | Hour:=((Hour*5) MOD 60) + Minute DIV 12;
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| 115 |
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| 116 | Canvas.ClipRect:=ClientRect;
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| 117 |
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| 118 | Canvas.Pen.Color:=HourColor;
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| 119 | DrawHand(aptlHour,Hour);
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| 120 | Canvas.Pen.Color:=MinuteColor;
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| 121 | DrawHand(aptlMinute,Minute);
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| 122 | Canvas.Pen.Color:=SecondColor;
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| 123 | DrawHand(aptlSecond,Second);
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| 124 |
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| 125 | Canvas.Pen.Color:=Color;
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| 126 |
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| 127 | DrawHand(aptlSecond,FSecond);
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| 128 | IF ((Hour<>FHour)OR(Minute<>FMinute)) THEN
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| 129 | BEGIN
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| 130 | DrawHand(aptlHour,FHour);
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| 131 | DrawHand(aptlMinute,FMinute);
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| 132 | END;
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| 133 |
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| 134 | Canvas.DeleteClipRegion;
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| 135 |
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| 136 | FHour:=Hour;
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| 137 | FMinute:=Minute;
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| 138 | FSecond:=Second;
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| 139 | FSec100:=Sec100;
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| 140 | END;
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| 141 | END;
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| 142 |
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| 143 | PROCEDURE TAnalogClock.SetupShow;
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| 144 | BEGIN
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| 145 | Inherited SetupShow;
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| 146 |
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| 147 | FVertRes:=Canvas.VerticalResolution;
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| 148 | FHorzRes:=Canvas.HorizontalResolution;
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| 149 | Resize;
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| 150 | GetTime(FHour,FMinute,FSecond,FSec100);
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| 151 | FHour:=(FHour*5) MOD 60 + FMinute DIV 12;
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| 152 | FTimer.OnTimer:=TimerEvent;
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| 153 | FTimer.Start;
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| 154 | END;
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| 155 |
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| 156 | PROCEDURE TAnalogClock.Resize;
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| 157 | VAR Temp:LONGINT;
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| 158 | CX,CY:LONGINT;
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| 159 | BEGIN
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| 160 | Inherited Resize;
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| 161 |
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| 162 | CX:=Width*1000 DIV FHorzRes;
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| 163 | CY:=Height*1000 DIV FVertRes;
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| 164 | IF CX<CY THEN Temp:=CX
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| 165 | ELSE Temp:=CY;
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| 166 |
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| 167 | FCXPixel:=FHorzRes*Temp DIV 1000;
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| 168 | FCYPixel:=FVertRes*Temp DIV 1000;
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| 169 | END;
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| 170 |
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| 171 | PROCEDURE TAnalogClock.MakePoints(VAR pts:ARRAY OF TPoint;Count,Angle:LONGINT);
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| 172 | CONST SinTable:ARRAY[0..59] OF LONGINT=
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| 173 | (
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| 174 | 0,105,208,309,407,500,588,669,743,809,
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| 175 | 866,914,951,978,995,1000,995,978,951,914,
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| 176 | 866,809,743,669,588,500,407,309,208,105,
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| 177 | 0,-104,-207,-308,-406,-499,-587,-668,-742,-808,
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| 178 | -865,-913,-950,-977,-994,-999,-994,-977,-950,-913,
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| 179 | -865,-808,-742,-668,-587,-499,-406,-308,-207,-104
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| 180 | );
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| 181 | VAR t:LONGINT;
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| 182 | Cos1,Sin1:LONGINT;
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| 183 | pt:TPoint;
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| 184 | CONST
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| 185 | Factor: Single = 6 * PI / 180;
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| 186 | BEGIN
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| 187 | Cos1:=SinTable[(Angle+15) MOD 60];
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| 188 | Sin1:=SinTable[Angle];
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| 189 | FOR t:=0 TO Count-1 DO
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| 190 | BEGIN
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| 191 | pt:=pts[t];
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| 192 | pt:=Point((pt.X*Cos1+pt.Y*Sin1) DIV 1000,(pt.Y*Cos1-pt.X*Sin1) DIV 1000);
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| 193 | pt.X:=((pt.X*FCXPixel) DIV 200);
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| 194 | inc(pt.x,Width DIV 2);
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| 195 | pt.Y:=((pt.Y*FCYPixel) DIV 200);
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| 196 | inc(pt.y,Height DIV 2);
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| 197 | pts[t]:=pt;
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| 198 | END;
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| 199 | END;
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| 200 |
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| 201 | PROCEDURE TAnalogClock.DrawHand(pts:ARRAY OF TPoint;Value:WORD);
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| 202 | VAR t:LONGINT;
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| 203 | BEGIN
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| 204 | MakePoints(pts,High(pts)+1,Value);
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| 205 |
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| 206 | Canvas.BeginPath;
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| 207 | Canvas.PenPos:=pts[0];
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| 208 | FOR t:=1 TO High(pts) DO Canvas.LineTo(pts[t].X,pts[t].Y);
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| 209 | Canvas.EndPath;
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| 210 | Canvas.FillPath;
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| 211 |
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| 212 | Canvas.BeginPath;
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| 213 | Canvas.PenPos:=pts[0];
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| 214 | FOR t:=1 TO High(pts) DO Canvas.LineTo(pts[t].X,pts[t].Y);
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| 215 | Canvas.EndPath;
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| 216 | Canvas.PathToClipRegion(paDiff);
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| 217 | END;
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| 218 |
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| 219 | PROCEDURE TAnalogClock.Redraw(CONST rec:TRect);
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| 220 | VAR Angle:LONGINT;
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| 221 | pt:ARRAY[0..0] OF TPoint;
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| 222 | Radius:LONGINT;
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| 223 | BEGIN
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| 224 | Canvas.Pen.Color:=HourColor;
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| 225 | DrawHand(aptlHour,FHour);
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| 226 | Canvas.Pen.Color:=MinuteColor;
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| 227 | DrawHand(aptlMinute,FMinute);
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| 228 | Canvas.Pen.Color:=SecondColor;
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| 229 | DrawHand(aptlSecond,FSecond);
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| 230 |
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| 231 | Inherited Redraw(rec);
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| 232 |
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| 233 | Canvas.Pen.Color:=PenColor;
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| 234 |
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| 235 | FOR Angle:=0 TO 59 DO
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| 236 | BEGIN
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| 237 | IF Angle MOD 5<>0 THEN Radius:=1
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| 238 | ELSE Radius:=4;
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| 239 |
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| 240 | pt[0]:=Point(0,90);
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| 241 | MakePoints(pt,1,Angle);
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| 242 |
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| 243 | Canvas.FilledCircle(pt[0].X,pt[0].Y,Radius*FCXPixel DIV 200);
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| 244 | END;
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| 245 | END;
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| 246 |
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| 247 | BEGIN
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| 248 | RegisterClasses([TAnalogClock]);
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| 249 | END.
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