public override void Plot(Graphics graphics, Rectangle bounds, double min, double max)
{
if (Bars == null || ChartControl == null)
{
return;
}
int barPaintWidth = Math.Max(3, 1 + 2 * ((int)Bars.BarsData.ChartStyle.BarWidth - 1) + 2 * shadowWidth);
for (int idx = FirstBarIndexPainted; idx <= LastBarIndexPainted; idx++)
{
if (idx - Displacement < 0 || idx - Displacement >= BarsArray[0].Count || (!ChartControl.ShowBarsRequired && idx - Displacement < BarsRequired))
{
continue;
}
double valH = HAHigh.Get(idx);
double valL = HALow.Get(idx);
double valC = HAClose.Get(idx);
double valO = HAOpen.Get(idx);
int x = ChartControl.GetXByBarIdx(BarsArray[0], idx);
int y1 = ChartControl.GetYByValue(this, valO);
int y2 = ChartControl.GetYByValue(this, valH);
int y3 = ChartControl.GetYByValue(this, valL);
int y4 = ChartControl.GetYByValue(this, valC);
graphics.DrawLine(shadowPen, x, y2, x, y3);
if (y4 == y1)
{
graphics.DrawLine(shadowPen, x - barPaintWidth / 2, y1, x + barPaintWidth / 2, y1);
}
else
{
if (y4 > y1)
{
graphics.FillRectangle(brushDown, x - barPaintWidth / 2, y1, barPaintWidth, y4 - y1);
}
else
{
graphics.FillRectangle(brushUp, x - barPaintWidth / 2, y4, barPaintWidth, y1 - y4);
}
graphics.DrawRectangle(shadowPen, (x - barPaintWidth / 2) + (shadowPen.Width / 2), Math.Min(y4, y1), barPaintWidth - shadowPen.Width, Math.Abs(y4 - y1));
}
}
}
protected override void OnTermination()
{
if (HAClose != null)
{
HAClose.Dispose();
}
if (HAOpen != null)
{
HAOpen.Dispose();
}
if (HAHigh != null)
{
HAHigh.Dispose();
}
if (HALow != null)
{
HALow.Dispose();
}
}
/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{
if (Displacement + (CalculateOnBarClose ? 1 : 0) > 0 && CurrentBar > 0 && BarColorSeries[1] != Color.Transparent)
{
InitColorSeries();
}
BarColorSeries.Set(Math.Max(0, CurrentBar + Math.Max(0, Displacement) + (CalculateOnBarClose ? 1 : 0)), Color.Transparent);
CandleOutlineColorSeries.Set(Math.Max(0, CurrentBar + Math.Max(0, Displacement) + (CalculateOnBarClose ? 1 : 0)), Color.Transparent);
if (CurrentBar == 0)
{
HAOpen.Set(Open[0]);
HAHigh.Set(High[0]);
HALow.Set(Low[0]);
HAClose.Set(Close[0]);
return;
}
HAClose.Set((Open[0] + High[0] + Low[0] + Close[0]) * 0.25); // Calculate the close
HAOpen.Set((HAOpen[1] + HAClose[1]) * 0.5); // Calculate the open
HAHigh.Set(Math.Max(High[0], HAOpen[0])); // Calculate the high
HALow.Set(Math.Min(Low[0], HAOpen[0])); // Calculate the low
}
/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{
if (!initialized)
{
if (ChartControl != null && saveDownColor == Color.Empty && ChartControl.ChartStyle.DownColor != Color.Transparent)
{
saveDownColor = ChartControl.ChartStyle.DownColor;
saveUpColor = ChartControl.ChartStyle.UpColor;
// savePen = ChartControl.ChartStyle.Pen;
// Use the defined chart colors
barColorDown = ChartControl.ChartStyle.DownColor;
barColorUp = ChartControl.ChartStyle.UpColor;
// make normal bars invisible
ChartControl.ChartStyle.DownColor = Color.Transparent;
ChartControl.ChartStyle.UpColor = Color.Transparent;
ChartControl.ChartStyle.Pen.Color = Color.Transparent;
//ChartControl.ChartStyle.Pen = new Pen(Color.Transparent);
}
initialized = true;
}
if (CurrentBar == 0)
{
HAOpen.Set(0);
HAHigh.Set(0);
HALow.Set(0);
HAClose.Set(0);
return;
}
// Draw HeikenAshi bars as specified by user
int lastBar = Math.Min(ChartControl.LastBarPainted, Bars.Count - 1);
int firstBar = (lastBar - ChartControl.BarsPainted) + 1;
switch (PaintStyle)
{
case PaintingStyle.PaintVisibleOnly:
if (CurrentBar <= firstBar + 2)
{
return;
}
if (CurrentBar >= lastBar + 1)
{
return;
}
break;
case PaintingStyle.PaintToLast:
if (CurrentBar <= firstBar + 2)
{
return;
}
break;
case PaintingStyle.PaintAll:
//
// break;
//
default:
break;
}
HAClose.Set((HMA(Open, smoothingPeriod)[0] + HMA(High, smoothingPeriod)[0] + HMA(Low, smoothingPeriod)[0] + HMA(Close, smoothingPeriod)[0]) / 4); // Calculate the close
HAOpen.Set((HMA(HAOpen, smoothingPeriod)[1] + HMA(HAClose, smoothingPeriod)[1]) / 2); // Calculate the open
HAHigh.Set(Math.Max(HMA(High, smoothingPeriod)[0], HMA(HAOpen, smoothingPeriod)[0])); // Calculate the high
HALow.Set(Math.Min(HMA(Low, smoothingPeriod)[0], HMA(HAOpen, smoothingPeriod)[0])); // Calculate the low
Color barColor = (HAClose[0] > HAOpen[0] ? BarColorUp : BarColorDown);
Color ShadowColor = (Close[0] > Open[0] ? BarColorUp : BarColorDown);
int BodyWidth = Math.Max(ChartControl.BarWidth + 2, ChartControl.BarSpace - 3);
DrawLine(CurrentBar.ToString(), false, 0, HAHigh[0], 0, HALow[0], ShadowColor, DashStyle.Solid, ShadowWidth);
DrawLine(CurrentBar.ToString() + "OC", false, 0, HAOpen[0], 0, HAClose[0], barColor, DashStyle.Solid, BodyWidth);
}
protected override void OnRender(ChartControl chartControl, ChartScale chartScale)
{
base.OnRender(chartControl, chartScale);
BodyWidth = (int)ChartControl.BarWidth + Math.Min(ShadowWidth * 2, 4);
if (ChartBars != null)
{
// loop through all of the viewable range of the chart
for (int barIndex = ChartBars.FromIndex; barIndex <= ChartBars.ToIndex; barIndex++)
{
if (ShadowColor == Brushes.Transparent)
{
if (Close.GetValueAt(barIndex) > Open.GetValueAt(barIndex))
{
DrawLineNT("BarBrushUp",
barIndex,
HAHigh.GetValueAt(barIndex),
barIndex,
Math.Max(HAClose.GetValueAt(barIndex), HAOpen.GetValueAt(barIndex)),
ShadowWidth,
chartScale);
DrawLineNT("BarBrushUp",
barIndex,
HALow.GetValueAt(barIndex),
barIndex,
Math.Min(HAClose.GetValueAt(barIndex), HAOpen.GetValueAt(barIndex)),
ShadowWidth,
chartScale);
}
else
{
DrawLineNT("BarBrushDown",
barIndex,
HAHigh.GetValueAt(barIndex),
barIndex,
Math.Max(HAClose.GetValueAt(barIndex), HAOpen.GetValueAt(barIndex)),
ShadowWidth,
chartScale);
DrawLineNT("BarBrushDown",
barIndex,
HALow.GetValueAt(barIndex),
barIndex,
Math.Min(HAClose.GetValueAt(barIndex), HAOpen.GetValueAt(barIndex)),
ShadowWidth,
chartScale);
}
}
else
{
DrawLineNT("ShadowBrush",
barIndex,
HAHigh.GetValueAt(barIndex),
barIndex,
Math.Max(HAClose.GetValueAt(barIndex), HAOpen.GetValueAt(ShadowWidth)),
ShadowWidth,
chartScale);
DrawLineNT("ShadowBrush",
barIndex,
HALow.GetValueAt(barIndex),
barIndex,
Math.Min(HAClose.GetValueAt(barIndex), HAOpen.GetValueAt(ShadowWidth)),
ShadowWidth,
chartScale);
}
if (HAClose.GetValueAt(barIndex) > HAOpen.GetValueAt(barIndex))
{
DrawLineNT("BarBrushUp",
barIndex,
HAOpen.GetValueAt(barIndex),
barIndex,
HAClose.GetValueAt(barIndex),
BodyWidth,
chartScale);
}
else
{
DrawLineNT("BarBrushDown",
barIndex,
HAOpen.GetValueAt(barIndex),
barIndex,
HAClose.GetValueAt(barIndex),
BodyWidth,
chartScale);
}
}
// Draw price line if wanted
if (ShowPriceLine)
{
DrawLineNT("PriceLineBrush",
Math.Max(PriceLineLength, CurrentBar - 15),
Close.GetValueAt(CurrentBar),
CurrentBar,
Close.GetValueAt(CurrentBar),
PriceLineWidth,
PriceLineStyle,
chartScale);
DrawStringNT(" -- " + Close.GetValueAt(CurrentBar).ToString() + " = Last Price",
Font,
"PriceTextBrush",
CurrentBar,
Close.GetValueAt(CurrentBar),
"PriceAreaBrush",
chartScale);
}
}
}
