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Pascal/Delphi Source File  |  2001-09-10  |  1.0 KB  |  43 lines
  1. unit PrintPreview_Navigate;
  2.  
  3. interface
  4.  
  5. uses
  6.   Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  7.   Print_Preview, TeEngine, Series, StatChar, TeeNavigator, TeePreviewPanel,
  8.   StdCtrls, ExtCtrls, TeeProcs, Chart;
  9.  
  10. type
  11.   TPrintPreviewNavigate = class(TPrintPreviewForm)
  12.     ChartPageNavigator1: TChartPageNavigator;
  13.     Series1: THistogramSeries;
  14.     procedure Chart1PageChange(Sender: TObject);
  15.     procedure FormShow(Sender: TObject);
  16.   private
  17.     { Private declarations }
  18.   public
  19.     { Public declarations }
  20.   end;
  21.  
  22. implementation
  23.  
  24. {$R *.DFM}
  25.  
  26. procedure TPrintPreviewNavigate.Chart1PageChange(Sender: TObject);
  27. begin
  28.   { after changing the current page, refresh the Print Preview }
  29.   TeePreviewPanel1.Repaint;
  30. end;
  31.  
  32. procedure TPrintPreviewNavigate.FormShow(Sender: TObject);
  33. begin
  34.   inherited;
  35.   { after adding points to Series1 refresh the navigator buttons }
  36.   Series1.FillSampleValues(20);
  37.   ChartPageNavigator1.EnableButtons;
  38. end;
  39.  
  40. initialization
  41.   RegisterClass(TPrintPreviewNavigate);
  42. end.
  43.