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Pascal/Delphi Source File  |  2001-09-10  |  1.7 KB  |  69 lines
  1. unit Canvas_DotPen;
  2.  
  3. interface
  4.  
  5. uses
  6.   Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  7.   Base, ComCtrls, StdCtrls, TeEngine, Series, ExtCtrls, TeeProcs, Chart;
  8.  
  9. type
  10.   TCanvasDotPen = class(TBaseForm)
  11.     Series1: TFastLineSeries;
  12.     Series2: TFastLineSeries;
  13.     Series3: TFastLineSeries;
  14.     Series4: TFastLineSeries;
  15.     CheckBox1: TCheckBox;
  16.     Label1: TLabel;
  17.     Edit1: TEdit;
  18.     UpDown1: TUpDown;
  19.     procedure Edit1Change(Sender: TObject);
  20.     procedure CheckBox1Click(Sender: TObject);
  21.     procedure FormCreate(Sender: TObject);
  22.   private
  23.     { Private declarations }
  24.   public
  25.     { Public declarations }
  26.   end;
  27.  
  28. implementation
  29.  
  30. {$R *.DFM}
  31.  
  32. procedure TCanvasDotPen.Edit1Change(Sender: TObject);
  33. begin
  34.   Series1.Pen.Width:=UpDown1.Position;
  35.   Series2.Pen.Width:=UpDown1.Position;
  36.   Series3.Pen.Width:=UpDown1.Position;
  37.   Series4.Pen.Width:=UpDown1.Position;
  38. end;
  39.  
  40. procedure TCanvasDotPen.CheckBox1Click(Sender: TObject);
  41. var tmp : TPenStyle;
  42. begin
  43.   if CheckBox1.Checked then tmp:=psDot
  44.                        else tmp:=psSolid;
  45.   Series1.Pen.Style:=tmp;
  46.   Series2.Pen.Style:=tmp;
  47.   Series3.Pen.Style:=tmp;
  48.   Series4.Pen.Style:=tmp;
  49. end;
  50.  
  51. procedure TCanvasDotPen.FormCreate(Sender: TObject);
  52. begin
  53.   inherited;
  54.   Series1.FillSampleValues(20);
  55.   Series2.FillSampleValues(30);
  56.   Series3.FillSampleValues(40);
  57.   Series4.FillSampleValues(10);
  58.  
  59.   { set big dotted pen }
  60.   Series1.Pen.Width:=3; Series1.Pen.Style:=psDot;
  61.   Series2.Pen.Width:=3; Series2.Pen.Style:=psDot;
  62.   Series3.Pen.Width:=3; Series3.Pen.Style:=psDot;
  63.   Series4.Pen.Width:=3; Series4.Pen.Style:=psDot;
  64. end;
  65.  
  66. initialization
  67.   RegisterClass(TCanvasDotPen);
  68. end.
  69.