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Pascal/Delphi Source File  |  2001-09-10  |  1.2 KB  |  57 lines
  1. unit Zoom_MinPix;
  2.  
  3. interface
  4.  
  5. uses
  6.   Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  7.   Base, ComCtrls, StdCtrls, TeEngine, Series, ExtCtrls, TeeProcs, Chart, TeePenDlg;
  8.  
  9. type
  10.   TZoomMinPixel = class(TBaseForm)
  11.     Series1: THorizLineSeries;
  12.     Label1: TLabel;
  13.     Label2: TLabel;
  14.     Edit1: TEdit;
  15.     UpDown1: TUpDown;
  16.     Label3: TLabel;
  17.     ComboBox1: TComboBox;
  18.     procedure Edit1Change(Sender: TObject);
  19.     procedure ComboBox1Change(Sender: TObject);
  20.     procedure FormCreate(Sender: TObject);
  21.     procedure FormShow(Sender: TObject);
  22.   private
  23.     { Private declarations }
  24.   public
  25.     { Public declarations }
  26.   end;
  27.  
  28. implementation
  29.  
  30. {$R *.DFM}
  31.  
  32. procedure TZoomMinPixel.Edit1Change(Sender: TObject);
  33. begin
  34.   Chart1.Zoom.MinimumPixels:=UpDown1.Position
  35. end;
  36.  
  37. procedure TZoomMinPixel.ComboBox1Change(Sender: TObject);
  38. begin
  39.   Chart1.Zoom.MouseButton:=TMouseButton(ComboBox1.ItemIndex);
  40. end;
  41.  
  42. procedure TZoomMinPixel.FormCreate(Sender: TObject);
  43. begin
  44.   inherited;
  45.   Series1.FillSampleValues(80);
  46. end;
  47.  
  48. procedure TZoomMinPixel.FormShow(Sender: TObject);
  49. begin
  50.   inherited;
  51.   ComboBox1.ItemIndex:=0;
  52. end;
  53.  
  54. initialization
  55.   RegisterClass(TZoomMinPixel);
  56. end.
  57.