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Pascal/Delphi Source File  |  2001-09-10  |  998 b   |  42 lines
  1. unit Chart_PageNavigator;
  2.  
  3. interface
  4.  
  5. uses
  6.   Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  7.   Base, StdCtrls, Chart, TeEngine, Series, ExtCtrls, TeeProcs, TeeNavigator;
  8.  
  9. type
  10.   TPageNavigatorForm = class(TBaseForm)
  11.     Series1: TFastLineSeries;
  12.     ChartPageNavigator1: TChartPageNavigator;
  13.     Label1: TLabel;
  14.     Label2: TLabel;
  15.     procedure FormCreate(Sender: TObject);
  16.     procedure Chart1PageChange(Sender: TObject);
  17.   private
  18.     { Private declarations }
  19.   public
  20.     { Public declarations }
  21.   end;
  22.  
  23. implementation
  24.  
  25. {$R *.DFM}
  26.  
  27. procedure TPageNavigatorForm.FormCreate(Sender: TObject);
  28. begin
  29.   inherited;
  30.   Series1.FillSampleValues(1000);
  31.   Chart1.MaxPointsPerPage:=50;     { number of pages: 1000 / 50 = 20 }
  32. end;
  33.  
  34. procedure TPageNavigatorForm.Chart1PageChange(Sender: TObject);
  35. begin
  36.   Label2.Caption:=IntToStr(Chart1.Page)+' of '+IntToStr(Chart1.NumPages);
  37. end;
  38.  
  39. initialization
  40.   RegisterClass(TPageNavigatorForm);
  41. end.
  42.