int BarFromX(int x)
{
int thisBar = CurrentBar - (int)ChartBars.GetBarIdxByX(ChartControl, x);
//Limit to existing right bar #
if (thisBar < rightMaxBarNum)
{
thisBar = 0;
}
return(thisBar);
}
private void UpdateTextLayout(ChartControl chartControl, ChartPanel chartPanel, ChartScale chartScale)
{
if (isTextCreated && textLayout != null && !textLayout.IsDisposed)
{
return;
}
if (textFormat != null && !textFormat.IsDisposed)
{
textFormat.Dispose();
}
if (textLayout != null && !textLayout.IsDisposed)
{
textLayout.Dispose();
}
ChartBars chartBars = GetAttachedToChartBars();
// bars can be null while chart is initializing
if (chartBars == null)
{
return;
}
double yDiffPrice = AttachedTo.Instrument.MasterInstrument.RoundToTickSize(EndAnchor.Price - StartAnchor.Price);
double yDiffTicks = yDiffPrice / AttachedTo.Instrument.MasterInstrument.TickSize;
switch (YValueDisplayUnit)
{
case ValueUnit.Price: yValueString = chartBars.Bars.Instrument.MasterInstrument.FormatPrice(yDiffPrice); break;
case ValueUnit.Currency:
yValueString = AttachedTo.Instrument.MasterInstrument.InstrumentType == InstrumentType.Forex
? Core.Globals.FormatCurrency((int)Math.Abs(yDiffTicks) * Account.All[0].ForexLotSize * (AttachedTo.Instrument.MasterInstrument.TickSize * AttachedTo.Instrument.MasterInstrument.PointValue))
: Core.Globals.FormatCurrency((int)Math.Abs(yDiffTicks) * (AttachedTo.Instrument.MasterInstrument.TickSize * AttachedTo.Instrument.MasterInstrument.PointValue));
break;
case ValueUnit.Percent: yValueString = (yDiffPrice / AttachedTo.Instrument.MasterInstrument.RoundToTickSize(StartAnchor.Price)).ToString("P", Core.Globals.GeneralOptions.CurrentCulture); break;
case ValueUnit.Ticks: yValueString = yDiffTicks.ToString("F0"); break;
case ValueUnit.Pips:
// show tenth pips (if available)
double pips = Math.Abs(yDiffTicks / 10);
char decimalChar = Char.Parse(Core.Globals.GeneralOptions.CurrentCulture.NumberFormat.NumberDecimalSeparator);
yValueString = Int32.Parse(pips.ToString("F1").Split(decimalChar)[1]) > 0 ? pips.ToString("F1").Replace(decimalChar, '\'') : pips.ToString("F0");
break;
}
TimeSpan timeDiff = EndAnchor.Time - StartAnchor.Time;
// trim off millis/ticks, match NT7 time formatting
timeDiff = new TimeSpan(timeDiff.Days, timeDiff.Hours, timeDiff.Minutes, timeDiff.Seconds);
bool isMultiDay = Math.Abs(timeDiff.TotalHours) >= 24;
if (chartBars.Bars.BarsPeriod.BarsPeriodType == BarsPeriodType.Day)
{
int timeDiffDay = Math.Abs(timeDiff.Days);
timeText = timeDiffDay > 1 ? Math.Abs(timeDiff.Days) + " " + Custom.Resource.Days : Math.Abs(timeDiff.Days) + " " + Custom.Resource.Day;
}
else
{
timeText = isMultiDay ? string.Format("{0}\n{1,25}",
string.Format(Custom.Resource.NinjaScriptDrawingToolRulerDaysFormat, Math.Abs(timeDiff.Days)),
timeDiff.Subtract(new TimeSpan(timeDiff.Days, 0, 0, 0)).Duration().ToString()) : timeDiff.Duration().ToString();
}
Point startPoint = StartAnchor.GetPoint(chartControl, chartPanel, chartScale);
Point endPoint = EndAnchor.GetPoint(chartControl, chartPanel, chartScale);
int startIdx = chartBars.GetBarIdxByX(chartControl, (int)startPoint.X);
int endIdx = chartBars.GetBarIdxByX(chartControl, (int)endPoint.X);
int numBars = endIdx - startIdx;
SimpleFont wpfFont = chartControl.Properties.LabelFont ?? new SimpleFont();
textFormat = wpfFont.ToDirectWriteTextFormat();
textFormat.TextAlignment = SharpDX.DirectWrite.TextAlignment.Leading;
textFormat.WordWrapping = SharpDX.DirectWrite.WordWrapping.NoWrap;
// format text to our text rectangle bounds (it will wrap to these constraints), nt7 format
// NOTE: Environment.NewLine doesnt work right here
string text = string.Format("{0}\n{1,-11}{2,-11}\n{3,-11}{4,-11}\n{5,-10}{6,-10}",
AttachedTo.DisplayName,
Custom.Resource.NinjaScriptDrawingToolRulerNumberBarsText, numBars,
Custom.Resource.NinjaScriptDrawingToolRulerTimeText, timeText,
Custom.Resource.NinjaScriptDrawingToolRulerYValueText, yValueString);
// give big values for max width/height, we will trim to actual used
textLayout = new SharpDX.DirectWrite.TextLayout(Core.Globals.DirectWriteFactory, text, textFormat, 600, 600);
// use measured max width/height
textLayout.MaxWidth = textLayout.Metrics.Width;
textLayout.MaxHeight = textLayout.Metrics.Height;
isTextCreated = true;
}
