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Pascal/Delphi Source File  |  2001-09-10  |  1.2 KB  |  58 lines
  1. unit Legend_Multi;
  2.  
  3. interface
  4.  
  5. uses
  6.   Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  7.   Base, StdCtrls, TeEngine, Series, ExtCtrls, TeeProcs, Chart;
  8.  
  9. type
  10.   TMultiLegendForm = class(TBaseForm)
  11.     Series1: TBarSeries;
  12.     Series2: TBarSeries;
  13.     CheckBox1: TCheckBox;
  14.     procedure Chart1AfterDraw(Sender: TObject);
  15.     procedure FormCreate(Sender: TObject);
  16.     procedure CheckBox1Click(Sender: TObject);
  17.   private
  18.     { Private declarations }
  19.   public
  20.     { Public declarations }
  21.   end;
  22.  
  23. implementation
  24.  
  25. {$R *.DFM}
  26.  
  27. procedure TMultiLegendForm.Chart1AfterDraw(Sender: TObject);
  28. begin
  29.   if CheckBox1.Checked then
  30.   With Chart1.Legend do
  31.   begin
  32.     Top:=125;
  33.     Series:=Series2;
  34.     DrawLegend;
  35.     CustomPosition:=False;
  36.     Series:=Series1;
  37.   end;
  38. end;
  39.  
  40. procedure TMultiLegendForm.FormCreate(Sender: TObject);
  41. begin
  42.   inherited;
  43.   Series1.FillSampleValues(4);
  44.   Series2.FillSampleValues(4);
  45.  
  46.   Chart1.Legend.LegendStyle:=lsValues;
  47.   Chart1.Legend.Series:=Series1;
  48. end;
  49.  
  50. procedure TMultiLegendForm.CheckBox1Click(Sender: TObject);
  51. begin
  52.   Chart1.Repaint;
  53. end;
  54.  
  55. initialization
  56.   RegisterClass(TMultiLegendForm);
  57. end.
  58.