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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections.ObjectModel;
using System.ComponentModel;
namespace FLY.ControlLibrary
{
public class GraphScan2:GraphScan
{
public GraphScan2():base()
{
mRefresh = new Refresh(this);
}
#region 刷新率控制
class Refresh
{
/// <summary>
/// 控制刷新率
/// </summary>
System.Windows.Threading.DispatcherTimer timer;
bool updatedata_flag = false;
/// <summary>
/// 最快0.1s 刷新一次
/// </summary>
TimeSpan REFRESH_RATE = TimeSpan.FromSeconds(0.1);
public Refresh(GraphScan2 graph)
{
timer = new System.Windows.Threading.DispatcherTimer();
timer.Tick += new EventHandler(delegate(object sender, EventArgs e)
{
if (UpdateData)
{
UpdateData = false;
graph.DataBindAll2();
}
timer.Stop();
});
timer.Interval = REFRESH_RATE;
timer.Start();
}
public bool UpdateData
{
get { return updatedata_flag; }
set
{
updatedata_flag = value;
if (value)
{
if (!timer.IsEnabled)
timer.Start();
}
}
}
}
Refresh mRefresh;
#endregion
protected override void Test()
{
base.Test();
ObservableCollection<int> datasource = new ObservableCollection<int>();
// Populate series data
Random random = new Random();
for (int i = 0; i < 40; i++)
{
datasource.Add(random.Next(3000) - 1500 + Target);
}
DataSource2 = datasource;
}
protected override void InitializeComponent2()
{
base.InitializeComponent2();
System.Windows.Forms.DataVisualization.Charting.Series series1 = new System.Windows.Forms.DataVisualization.Charting.Series();
series1.BorderColor = System.Drawing.Color.DarkBlue;
series1.BorderWidth = 2;
series1.ChartArea = "Default";
//TODO
series1.ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
//series1.ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Column;
series1.Color = System.Drawing.Color.Blue;
series1.Legend = "Default";
series1.Name = "Series 2";
series1.ShadowColor = System.Drawing.Color.Black;
series1.ShadowOffset = 2;
series1.XValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.Int32;
series1.YValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.Double;
this.chart1.Series.Add(series1);
}
/// <summary>
/// 数据源
/// </summary>
private ObservableCollection<int> _datasource;
public virtual ObservableCollection<int> DataSource2
{
get
{
return _datasource;
}
set
{
_datasource = value;
_datasource.CollectionChanged += dataSource_CollectionChanged;
mRefresh.UpdateData = true;
}
}
/// <summary>
/// DataSource 里面的数据都是 EmptyValue 组成, 当修改数据时，应该clear ,再添加
/// </summary>
private bool DataSourceIsEmpty = false;
/// <summary>
/// 当一个数据都没有时，需要添加空数据
/// </summary>
public void CheckDataSourceEmpty2()
{
if ((DataSource2 == null) || (DataSource2.Count() == 0))
{
chart1.Series["Series 2"].Points.Clear();
chart1.Series["Series 2"].Points.AddXY(FirstBoltNo, EmptyValue);
chart1.Series["Series 2"].Points[0].IsEmpty = true;
DataSourceIsEmpty = true;
}
else
{
DataSourceIsEmpty = false;
}
}
void dataSource_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
mRefresh.UpdateData = true;
}
public void DataBindAll2()
{
double multi = Multi;
int emptyvalue = EmptyValue;
chart1.Series["Series 2"].Points.Clear();
if (DataSource2 != null)
{
for (int i = 0; i < DataSource2.Count(); i++)
{
UpdateOnePoint2(i);
}
}
CheckDataSourceEmpty2();
}
public virtual void UpdateOnePoint2(int index)
{
double multi = Multi;
int emptyvalue = EmptyValue;
System.Windows.Forms.DataVisualization.Charting.DataPoint point;
int x = FirstBoltNo + index;
double y = (double)DataSource2.ElementAt(index);
y = y / multi;
if (index >= chart1.Series["Series 2"].Points.Count)
{
chart1.Series["Series 2"].Points.AddXY(x, y);
point = chart1.Series["Series 2"].Points[index];
}
else
{
point = chart1.Series["Series 2"].Points[index];
point.XValue = x;
point.YValues[0] = y;
}
//设定空数据
if (DataSource2[index] == emptyvalue)
{
point.IsEmpty = true;
}
else
{
point.IsEmpty = false;
}
}
void GraphScan2_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "AutoTarget")
{
if (IsAutoTarget)
{
mRefresh.UpdateData = true;
}
}
if ((e.PropertyName == "Target") || (e.PropertyName == "Alarm") || (e.PropertyName == "YRange") || (e.PropertyName == "YRangePercent") || (e.PropertyName == "IsAutoTarget") || (e.PropertyName == "IsPercent") || (e.PropertyName == "AutoTarget"))
{
mRefresh.UpdateData = true;
}
}
}
}