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Pascal/Delphi Source File  |  2001-09-10  |  1.1 KB  |  50 lines
  1. unit Canvas_PyramidTrunc;
  2.  
  3. interface
  4.  
  5. uses
  6.   Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  7.   Base, TeeComma, ExtCtrls, TeeProcs, TeEngine, Chart, StdCtrls, TeCanvas;
  8.  
  9. type
  10.   TTruncPyramidForm = class(TBaseForm)
  11.     TeeCommander1: TTeeCommander;
  12.     ScrollBar1: TScrollBar;
  13.     ScrollBar2: TScrollBar;
  14.     Label1: TLabel;
  15.     Label2: TLabel;
  16.     procedure Chart1AfterDraw(Sender: TObject);
  17.     procedure ScrollBar1Change(Sender: TObject);
  18.   private
  19.     { Private declarations }
  20.   public
  21.     { Public declarations }
  22.   end;
  23.  
  24. implementation
  25.  
  26. {$R *.DFM}
  27.  
  28. procedure TTruncPyramidForm.Chart1AfterDraw(Sender: TObject);
  29. var R : TRect;
  30. begin
  31.   R.Left:=Chart1.ChartXCenter;
  32.   R.Top:=Chart1.ChartYCenter;
  33.   R.Right:=R.Left+60;
  34.   R.Bottom:=R.Top+70;
  35.   With Chart1.Canvas do
  36.   begin
  37.     Brush.Color:=clMoneyGreen;
  38.     PyramidTrunc(R,0,50,ScrollBar1.Position,ScrollBar2.Position);
  39.   end;
  40. end;
  41.  
  42. procedure TTruncPyramidForm.ScrollBar1Change(Sender: TObject);
  43. begin
  44.   Chart1.Invalidate;
  45. end;
  46.  
  47. initialization
  48.   RegisterClass(TTruncPyramidForm);
  49. end.
  50.