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Pascal/Delphi Source File  |  2001-09-10  |  1.8 KB  |  80 lines
  1. unit Function_ExpMovAve;
  2.  
  3. interface
  4.  
  5. uses
  6.   Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  7.   Base, ComCtrls, StdCtrls, TeEngine, StatChar, Series, OHLChart, CandleCh,
  8.   ExtCtrls, TeeProcs, Chart;
  9.  
  10. type
  11.   TExpMovAveForm = class(TBaseForm)
  12.     Series1: TCandleSeries;
  13.     Series2: TLineSeries;
  14.     TeeFunction1: TExpMovAveFunction;
  15.     Label1: TLabel;
  16.     Edit1: TEdit;
  17.     UpDown1: TUpDown;
  18.     Label2: TLabel;
  19.     ComboBox1: TComboBox;
  20.     CheckBox1: TCheckBox;
  21.     Timer1: TTimer;
  22.     procedure Edit1Change(Sender: TObject);
  23.     procedure FormCreate(Sender: TObject);
  24.     procedure ComboBox1Change(Sender: TObject);
  25.     procedure CheckBox1Click(Sender: TObject);
  26.     procedure Timer1Timer(Sender: TObject);
  27.     procedure FormShow(Sender: TObject);
  28.   private
  29.     { Private declarations }
  30.     Delta : Integer;
  31.   public
  32.     { Public declarations }
  33.   end;
  34.  
  35. implementation
  36.  
  37. {$R *.DFM}
  38.  
  39. procedure TExpMovAveForm.Edit1Change(Sender: TObject);
  40. begin
  41.   TeeFunction1.Period:=UpDown1.Position;
  42. end;
  43.  
  44. procedure TExpMovAveForm.FormCreate(Sender: TObject);
  45. begin
  46.   inherited;
  47.   Delta:=1;
  48.   Series2.YValues.ValueSource:='Close';
  49.   Series1.FillSampleValues(20);
  50. end;
  51.  
  52. procedure TExpMovAveForm.ComboBox1Change(Sender: TObject);
  53. begin
  54.   Series2.YValues.ValueSource:=ComboBox1.Items[ComboBox1.ItemIndex];
  55. end;
  56.  
  57. procedure TExpMovAveForm.CheckBox1Click(Sender: TObject);
  58. begin
  59.   Timer1.Enabled:=CheckBox1.Checked;
  60. end;
  61.  
  62. procedure TExpMovAveForm.Timer1Timer(Sender: TObject);
  63. begin
  64.   With UpDown1 do
  65.   begin
  66.     Position:=Position+Delta;
  67.     if (Position>19) or (Position<2) then Delta:=-Delta;
  68.   end;
  69. end;
  70.  
  71. procedure TExpMovAveForm.FormShow(Sender: TObject);
  72. begin
  73.   inherited;
  74.   ComboBox1.ItemIndex:=3;
  75. end;
  76.  
  77. initialization
  78.   RegisterClass(TExpMovAveForm);
  79. end.
  80.