public ChartDataProviderYahoo(string chartName, ezBarInterval barInterval, ezSessionTimeRange session)
{
this.chartName = chartName;
// If null has been passed as barInterval or session, then we will use default values for those.
if (barInterval == null)
{
barInterval = new ezBarInterval(zChartInterval.Day, 1);
}
if (session == null)
{
session = new ezSessionTimeRange();
}
this.BarInterval = barInterval;
this.Session = session;
// Create the EZChartDataSeries - this will be available via the ChartData property (but the caller
// should subscribe to the events to know when the data has finished loading or updates occur).
this.chartData = new EZChartDataSeries(chartName, barInterval, session);
//var chartThread = new ChartDataThread(this, chartData, startDate, endDate);
//var thread = new Thread(new ThreadStart(chartThread.Run));
//thread.Name = chartName + ":" + barInterval;
//thread.Start();
}
public ChartDataProviderCTS(string chartName, ezBarInterval barInterval, ezSessionTimeRange session)
{
this.chartName = chartName;
// If null has been passed as barInterval or session, then we will use default values for those.
if (barInterval == null)
{
barInterval = new ezBarInterval(zChartInterval.Day, 1);
}
if (session == null)
{
session = new ezSessionTimeRange();
}
this.BarInterval = barInterval;
this.Session = session;
// Create the EZChartDataSeries - this will be available via the ChartData property (but the caller
// should subscribe to the events to know when the data has finished loading or updates occur).
this.chartData = new EZChartDataSeries(chartName, barInterval, session);
this.chartData.DataLoadComplete += chartData_DataLoadComplete;
this.chartData.DataSeriesUpdated += chartData_DataSeriesUpdated;
}
public ChartDescriptor(object chartIdentifier, ezBarInterval interval, DateTime startDate, DateTime endDate, IndicatorMap indicators)
{
this.chartIdentifier = chartIdentifier;
this.interval = interval;
this.startDate = startDate;
this.endDate = endDate;
this.indicators = indicators;
this.UniqueID = DateTime.Now.Ticks.ToString();
}
public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
ezBarInterval ezb = obj as ezBarInterval;
if ((System.Object)ezb == null)
{
return(false);
}
return(Equals(ezb));
}
private void RequestChartData(EZInstrument instrument, zChartInterval interval, int period)
{
// Set EndDate to the current trading date.
//DateTime dtEndDate = selectedContract.GetTradeDate(DateTime.Now);
DateTime dtEndDate = DateTime.Now;
DateTime dtStartDate;
zChartInterval enBarInterval = zChartInterval.Hour;
if (interval == zChartInterval.Day)
{
enBarInterval = zChartInterval.Day;
// User select Day bars, load a few months of them.
dtStartDate = dtEndDate.AddMonths(-3);
}
else
{
enBarInterval = interval;
// User selected non-Day bars (Hour, Minute, etc.), load a couple of days of them.
dtStartDate = dtEndDate;
dtStartDate = dtStartDate.AddDays(-3);
/*// This little loop here will ensure that we load the previous trade date as well as today and will account for weekends
* // and holidays.
* while ((selectedContract.GetTradeDate(dtStartDate) == dtEndDate))
* {
* dtStartDate = dtStartDate.AddDays(-1);
* }*/
}
// Create a BarInterval object to tell the API what bar interval we want.
// So for example, if we wanted a 15 minute bar, we would do: New ezBarInterval(zChartDataType.Minute, 15)
ezBarInterval oBarIntvl = new ezBarInterval(enBarInterval, period);
string chartName = instrument.Name + " : " + oBarIntvl;
IChartDataProvider provider = new ChartDataProviderCTS(chartName, oBarIntvl, ezSessionTimeRange.Empty);
if (LoadingNewChart != null)
{
LoadingNewChart(provider);
}
this.SetChartDataProvider(provider);
WinForms.SetWaitCursor(true);
provider.LoadHistoricalChartData(APIMain.MarketFromInstrument(instrument), dtStartDate, dtEndDate);
}
public bool Equals(ezBarInterval ezb)
{
bool result = true;
if ((object)ezb == null)
{
return(false);
}
if (interval != ezb.interval)
{
result = false;
}
else if (period != ezb.period)
{
result = false;
}
return(result);
}
public void ZoomIn()
{
try
{
double xMin = chart1.ChartAreas["ChartAreaMain"].AxisX.ScaleView.ViewMinimum;
double xMax = chart1.ChartAreas["ChartAreaMain"].AxisX.ScaleView.ViewMaximum;
Point zoomPoint = new Point();
zoomPoint.X = chart1.Location.X + (chart1.ClientRectangle.Width / 2);
double posXStart = chart1.ChartAreas["ChartAreaMain"].AxisX.PixelPositionToValue(zoomPoint.X) - (xMax - xMin) / 3;
double posXFinish = chart1.ChartAreas["ChartAreaMain"].AxisX.PixelPositionToValue(zoomPoint.X) + (xMax - xMin) / 3;
chart1.ChartAreas["ChartAreaMain"].AxisX.ScaleView.Zoom(posXStart, posXFinish);
ezBarInterval barInterval = chartDataProvider.BarInterval;
string sInterval = barInterval.Interval.ToString() + "s"; // DateTimeIntervalType enum values are plural
DateTimeIntervalType intervalType = (DateTimeIntervalType)Enum.Parse(typeof(DateTimeIntervalType), sInterval, true);
chart1.ChartAreas["ChartAreaMain"].AxisX.ScaleView.SmallScrollSize = 1;
chart1.ChartAreas["ChartAreaMain"].AxisX.ScaleView.SmallScrollSizeType = DateTimeIntervalType.Auto;
}
catch (Exception ex) { ExceptionHandler.TraceException(ex); }
}
