public virtual void CopyTo(PriceLevel other)
{
other.IsVisible = IsVisible;
other.IsValueVisible = IsValueVisible;
other.Name = Name;
if (Stroke != null)
{
other.Stroke = new Stroke();
Stroke.CopyTo(other.Stroke);
}
else
{
other.Stroke = null;
}
other.Tag = Tag;
other.Value = Value;
other.ValueFormatFunc = ValueFormatFunc;
}
protected void DrawPriceLevelText(double minX, double maxX, Point endPoint, PriceLevel priceLevel, ChartPanel panel)
{
Gui.Tools.SimpleFont wpfFont = panel.ChartControl.Properties.LabelFont ?? new Gui.Tools.SimpleFont();
SharpDX.DirectWrite.TextFormat dxTextFormat = wpfFont.ToDirectWriteTextFormat();
string str = string.Format("{0}", (priceLevel.Value / 100).ToString("P"));
SharpDX.DirectWrite.TextLayout textLayout = new SharpDX.DirectWrite.TextLayout(Core.Globals.DirectWriteFactory, str, dxTextFormat, panel.H, dxTextFormat.FontSize);
float usedFontHeight = textLayout.Metrics.Height;
float usedFontWidth = textLayout.Metrics.Width;
Point textEndPoint = endPoint;
double maxWidth = panel.X + panel.W;
double maxHeight = panel.Y + panel.H;
double minWidth = panel.X;
double minHeight = panel.Y;
if (textEndPoint.Y + usedFontHeight >= maxHeight)
{
textEndPoint.Y = maxHeight - usedFontHeight; // Set to bottom
}
if (textEndPoint.Y < minHeight) // Set to top
{
textEndPoint.Y = minHeight;
}
if (textEndPoint.X + usedFontWidth >= maxWidth)
{
textEndPoint.X = maxWidth - usedFontWidth; //Set to right side;
}
if (textEndPoint.X < minWidth)
{
textEndPoint.X = minWidth; // Set to left side;
}
RenderTarget.DrawTextLayout(new SharpDX.Vector2((float)(textEndPoint.X), (float)(textEndPoint.Y)), textLayout,
priceLevel.Stroke.BrushDX, SharpDX.Direct2D1.DrawTextOptions.NoSnap);
dxTextFormat.Dispose();
textLayout.Dispose();
}
public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object component, Attribute[] attrs)
{
PriceLevel priceLevel = component as PriceLevel;
PropertyDescriptorCollection propertyDescriptorCollection = base.GetPropertiesSupported(context) ?
base.GetProperties(context, component, attrs) : TypeDescriptor.GetProperties(component, attrs);
if (priceLevel == null || propertyDescriptorCollection == null)
{
return(null);
}
PropertyDescriptorCollection filtered = new PropertyDescriptorCollection(null);
foreach (PropertyDescriptor property in propertyDescriptorCollection)
{
if ((property.Name != "Value" || priceLevel.IsValueVisible) && property.IsBrowsable)
{
filtered.Add(property);
}
}
return(filtered);
}
public override bool IsAlertConditionTrue(AlertConditionItem conditionItem, Condition condition, ChartAlertValue[] values,
ChartControl chartControl, ChartScale chartScale)
{
PriceLevel priceLevel = conditionItem.Tag as PriceLevel;
if (priceLevel == null)
{
return(false);
}
ChartPanel chartPanel = chartControl.ChartPanels[PanelIndex];
Point anchorStartPoint = StartAnchor.GetPoint(chartControl, chartPanel, chartScale);
Point anchorEndPoint = EndAnchor.GetPoint(chartControl, chartPanel, chartScale);
Point anchorExtensionPoint = ExtensionAnchor.GetPoint(chartControl, chartPanel, chartScale);
Point midPointExtension = new Point((anchorExtensionPoint.X + anchorEndPoint.X) / 2, (anchorExtensionPoint.Y + anchorEndPoint.Y) / 2);
if (CalculationMethod == AndrewsPitchforkCalculationMethod.Schiff)
{
anchorStartPoint = new Point(anchorStartPoint.X, (anchorStartPoint.Y + anchorEndPoint.Y) / 2);
}
else if (CalculationMethod == AndrewsPitchforkCalculationMethod.ModifiedSchiff)
{
anchorStartPoint = new Point((anchorEndPoint.X + anchorStartPoint.X) / 2, (anchorEndPoint.Y + anchorStartPoint.Y) / 2);
}
double totalPriceRange = EndAnchor.Price - ExtensionAnchor.Price;
double startPrice = ExtensionAnchor.Price;
double levelPrice = (startPrice + ((priceLevel.Value / 100) * totalPriceRange));
float pixelY = chartScale.GetYByValue(levelPrice);
float pixelX = anchorExtensionPoint.X > anchorEndPoint.X ?
(float)(anchorExtensionPoint.X - (Math.Abs((anchorEndPoint.X - anchorExtensionPoint.X) * (priceLevel.Value / 100)))) :
(float)(anchorExtensionPoint.X + ((anchorEndPoint.X - anchorExtensionPoint.X) * (priceLevel.Value / 100)));
Point alertStartPoint = new Point(pixelX, pixelY);
Point endPoint = new Point(alertStartPoint.X + (midPointExtension.X - anchorStartPoint.X), alertStartPoint.Y + (midPointExtension.Y - anchorStartPoint.Y));
Point alertEndPoint = GetExtendedPoint(alertStartPoint, endPoint);
double firstBarX = values[0].ValueType == ChartAlertValueType.StaticValue ? pixelX : chartControl.GetXByTime(values[0].Time);
double firstBarY = chartScale.GetYByValue(values[0].Value);
Point barPoint = new Point(firstBarX, firstBarY);
// Check bars are not yet to our drawing tool
if (firstBarX < alertStartPoint.X || firstBarX > alertEndPoint.X)
{
return(false);
}
// NOTE: 'left / right' is relative to if line was vertical. It can end up backwards too
MathHelper.PointLineLocation pointLocation = MathHelper.GetPointLineLocation(alertStartPoint, alertEndPoint, barPoint);
// For vertical things, think of a vertical line rotated 90 degrees to lay flat, where it's normal vector is 'up'
switch (condition)
{
case Condition.Greater: return(pointLocation == MathHelper.PointLineLocation.LeftOrAbove);
case Condition.GreaterEqual: return(pointLocation == MathHelper.PointLineLocation.LeftOrAbove || pointLocation == MathHelper.PointLineLocation.DirectlyOnLine);
case Condition.Less: return(pointLocation == MathHelper.PointLineLocation.RightOrBelow);
case Condition.LessEqual: return(pointLocation == MathHelper.PointLineLocation.RightOrBelow || pointLocation == MathHelper.PointLineLocation.DirectlyOnLine);
case Condition.Equals: return(pointLocation == MathHelper.PointLineLocation.DirectlyOnLine);
case Condition.NotEqual: return(pointLocation != MathHelper.PointLineLocation.DirectlyOnLine);
case Condition.CrossAbove:
case Condition.CrossBelow:
Predicate <ChartAlertValue> predicate = v =>
{
double barX = chartControl.GetXByTime(v.Time);
double barY = chartScale.GetYByValue(v.Value);
Point stepBarPoint = new Point(barX, barY);
// NOTE: 'left / right' is relative to if line was vertical. It can end up backwards too
MathHelper.PointLineLocation ptLocation = MathHelper.GetPointLineLocation(alertStartPoint, alertEndPoint, stepBarPoint);
if (condition == Condition.CrossAbove)
{
return(ptLocation == MathHelper.PointLineLocation.LeftOrAbove);
}
return(ptLocation == MathHelper.PointLineLocation.RightOrBelow);
};
return(MathHelper.DidPredicateCross(values, predicate));
}
return(false);
}
