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Pascal/Delphi Source File  |  1998-10-24  |  2.1 KB  |  90 lines
  1. unit udrag;
  2.  
  3. interface
  4.  
  5. uses
  6.   WinTypes,WinProcs, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  7.   Series, TeEngine, CurvFitt, ExtCtrls, TeeProcs, Chart, StdCtrls, TeeComma;
  8.  
  9. type
  10.   TDragBarForm = class(TForm)
  11.     Chart1: TChart;
  12.     Series1: TLineSeries;
  13.     TeeFunction1: TTrendFunction;
  14.     Series2: TBarSeries;
  15.     TeeCommander1: TTeeCommander;
  16.     Panel1: TPanel;
  17.     RadioGroup1: TRadioGroup;
  18.     CheckBox1: TCheckBox;
  19.     Button1: TButton;
  20.     procedure FormCreate(Sender: TObject);
  21.     procedure Chart1MouseMove(Sender: TObject; Shift: TShiftState; X,
  22.       Y: Integer);
  23.     procedure Chart1MouseUp(Sender: TObject; Button: TMouseButton;
  24.       Shift: TShiftState; X, Y: Integer);
  25.     procedure RadioGroup1Click(Sender: TObject);
  26.     procedure CheckBox1Click(Sender: TObject);
  27.     procedure Chart1MouseDown(Sender: TObject; Button: TMouseButton;
  28.       Shift: TShiftState; X, Y: Integer);
  29.     procedure Button1Click(Sender: TObject);
  30.   private
  31.     { Private declarations }
  32.   public
  33.     { Public declarations }
  34.     tmp,Oldy:Longint;
  35.   end;
  36.  
  37. var
  38.   DragBarForm: TDragBarForm;
  39.  
  40. implementation
  41.  
  42. {$R *.DFM}
  43.  
  44. procedure TDragBarForm.FormCreate(Sender: TObject);
  45. begin
  46.   Series2.FillSampleValues(7);
  47.   tmp:=-1;
  48. end;
  49.  
  50. procedure TDragBarForm.Chart1MouseMove(Sender: TObject; Shift: TShiftState; X,
  51.   Y: Integer);
  52. begin
  53.   if tmp<>-1 then
  54.   With Series2 do
  55.   begin
  56.     YValues[tmp]:=YValues[tmp]+(YScreenToValue(y)-YScreenToValue(OldY));
  57.     OldY:=y;
  58.   end;
  59. end;
  60.  
  61. procedure TDragBarForm.Chart1MouseUp(Sender: TObject; Button: TMouseButton;
  62.   Shift: TShiftState; X, Y: Integer);
  63. begin
  64.   tmp:=-1;
  65. end;
  66.  
  67. procedure TDragBarForm.RadioGroup1Click(Sender: TObject);
  68. begin
  69.   Series2.BarStyle:=TBarStyle(RadioGroup1.ItemIndex);
  70. end;
  71.  
  72. procedure TDragBarForm.CheckBox1Click(Sender: TObject);
  73. begin
  74.   Series2.ColorEachPoint:=CheckBox1.Checked;
  75. end;
  76.  
  77. procedure TDragBarForm.Chart1MouseDown(Sender: TObject; Button: TMouseButton;
  78.   Shift: TShiftState; X, Y: Integer);
  79. begin
  80.   tmp:=Series2.Clicked(X,Y);
  81.   OldY:=Y;
  82. end;
  83.  
  84. procedure TDragBarForm.Button1Click(Sender: TObject);
  85. begin
  86.   Close;
  87. end;
  88.  
  89. end.
  90.