lazarus/components/tachart/demo/line/Main.pas
2010-10-04 12:41:03 +00:00

130 lines
3.0 KiB
ObjectPascal

unit Main;
{$mode objfpc}{$H+}
interface
uses
Classes, ComCtrls, ExtCtrls, StdCtrls, SysUtils, FileUtil, Forms, Controls,
Graphics, Dialogs, TAGraph, TASeries, TASources, TATools;
type
{ TForm1 }
TForm1 = class(TForm)
btnAddSeries: TButton;
btnRefresh: TButton;
ccsAvg: TCalculatedChartSource;
cb3D: TCheckBox;
cbLineType: TComboBox;
cbRotated: TCheckBox;
cbSorted: TCheckBox;
ccsSum: TCalculatedChartSource;
chCalc: TChart;
chCalcLineSeries1: TLineSeries;
chCalcLineSeriesSum: TLineSeries;
chCalcLineSeriesAvg: TLineSeries;
chFast: TChart;
chFastConstantLine1: TConstantLine;
chFastLineSeries1: TLineSeries;
ChartToolset1: TChartToolset;
ChartToolset1DataPointDragTool1: TDataPointDragTool;
ChartToolset1PanDragTool1: TPanDragTool;
ChartToolset1ZoomDragTool1: TZoomDragTool;
edTime: TEdit;
PageControl1: TPageControl;
PageControl2: TPageControl;
Panel1: TPanel;
RandomChartSource1: TRandomChartSource;
tsStats: TTabSheet;
tsFast: TTabSheet;
procedure btnAddSeriesClick(Sender: TObject);
procedure btnRefreshClick(Sender: TObject);
procedure cb3DChange(Sender: TObject);
procedure cbLineTypeChange(Sender: TObject);
procedure cbRotatedChange(Sender: TObject);
procedure cbSortedChange(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.lfm}
uses
LCLIntf;
{ TForm1 }
procedure TForm1.btnAddSeriesClick(Sender: TObject);
var
s: TLineSeries;
i, j: Integer;
begin
for i := 1 to 10 do begin
s := TLineSeries.Create(chFast);
s.SeriesColor := clRed;
for j := 1 to 50000 do
s.AddXY(j, Random * 5 + chFast.SeriesCount * 10);
chFast.AddSeries(s);
end;
end;
procedure TForm1.btnRefreshClick(Sender: TObject);
var
t: TDateTime;
begin
t := Now;
chFast.Refresh;
edTime.Text := FormatDateTime('s.zzz', Now - t) + ' s';
end;
procedure TForm1.cb3DChange(Sender: TObject);
var
i: Integer;
begin
for i := 0 to chFast.SeriesCount - 1 do
if chFast.Series[i] is TLineSeries then
with chFast.Series[i] as TLineSeries do
Depth := 15 - Depth;
end;
procedure TForm1.cbLineTypeChange(Sender: TObject);
var
i: Integer;
begin
for i := 0 to chFast.SeriesCount - 1 do
if chFast.Series[i] is TLineSeries then
with chFast.Series[i] as TLineSeries do
LineType := TLineType(cbLineType.ItemIndex);
end;
procedure TForm1.cbRotatedChange(Sender: TObject);
var
i: Integer;
begin
for i := 0 to chFast.SeriesCount - 1 do
if chFast.Series[i] is TLineSeries then
with chFast.Series[i] as TLineSeries do begin
AxisIndexY := Ord(cbRotated.Checked);
AxisIndexX := 1 - AxisIndexY;
end;
end;
procedure TForm1.cbSortedChange(Sender: TObject);
var
i: Integer;
begin
for i := 0 to chFast.SeriesCount - 1 do
if chFast.Series[i] is TLineSeries then
with chFast.Series[i] as TLineSeries do
if Source is TListChartSource then
ListSource.Sorted := cbSorted.Checked;
end;
end.