/// <summary>
/// Paints panel pnlChart
/// </summary>
private void PnlChartPaint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
g.Clear(LayoutColors.ColorChartBack);
if (!Data.IsData || !Data.IsResult)
{
return;
}
var pnl = (Panel)sender;
int width = pnl.ClientSize.Width;
// Caption background
var pntStart = new PointF(0, 0);
SizeF szfCaption = new Size(width, infoRowHeight);
var rectCaption = new RectangleF(pntStart, szfCaption);
Data.GradientPaint(g, rectCaption, LayoutColors.ColorCaptionBack, LayoutColors.DepthCaption);
// Caption Text
var stringFormat = new StringFormat
{
LineAlignment = StringAlignment.Center,
Trimming = StringTrimming.EllipsisCharacter,
FormatFlags = StringFormatFlags.NoWrap,
Alignment = StringAlignment.Center
};
string stringCaptionText = Language.T("Price Route Inside the Bar");
rectCaption = new RectangleF(Border, 0, pnl.ClientSize.Width - 2 * Border, infoRowHeight);
g.DrawString(stringCaptionText, fontInfo, brushCaptionText, rectCaption, stringFormat);
// Paint the panel background
var rectClient = new RectangleF(0, infoRowHeight, pnl.ClientSize.Width, pnl.Height - infoRowHeight);
Data.GradientPaint(g, rectClient, LayoutColors.ColorChartBack, LayoutColors.DepthControl);
// Paint bar info
var rectBarInfo = new RectangleF(Border, infoRowHeight + 1, pnl.ClientSize.Width - 2 * Border, infoRowHeight);
g.DrawString(barInfo, fontInfo, brushGridText, rectBarInfo, stringFormat);
// Searching the min and the max price and volume
width = pnl.ClientSize.Width - 2 * Border;
double maxPrice = Data.High[barCurrent];
double minPrice = Data.Low[barCurrent];
const int space = 8;
int spcRight = szPrice.Width + 4;
const int xLeft = Border + space;
int xRight = width - spcRight;
int yTop = 2 * infoRowHeight + 6;
int yBottom = pnl.ClientSize.Height - 22;
int barPixels = maxWayPoints < 10 ? 28 : maxWayPoints < 15 ? 24 : 20;
const int spcLeft = 3;
int x = barPixels + spcLeft;
int pointLeft = x + barPixels + 30;
int pointRight = xRight - 20;
int points = Backtester.WayPoints(barCurrent);
const int pointRadius = 3;
// Grid
var iCntLabels = (int)Math.Max((yBottom - yTop) / 30d, 1);
double deltaPoint = (Data.InstrProperties.Digits == 5 || Data.InstrProperties.Digits == 3)
? Data.InstrProperties.Point * 100
: Data.InstrProperties.Point * 10;
double delta =
Math.Max(Math.Round((maxPrice - minPrice) / iCntLabels, Data.InstrProperties.Point < 0.001 ? 3 : 1),
deltaPoint);
minPrice = Math.Round(minPrice, Data.InstrProperties.Point < 0.001f ? 3 : 1) - Data.InstrProperties.Point * 10;
minPrice -= delta;
maxPrice += delta;
iCntLabels = (int)Math.Ceiling((maxPrice - minPrice) / delta);
maxPrice = minPrice + iCntLabels * delta;
double scaleY = (yBottom - yTop) / (iCntLabels * delta);
var yOpen = (int)(yBottom - (Data.Open[barCurrent] - minPrice) * scaleY);
var yHigh = (int)(yBottom - (Data.High[barCurrent] - minPrice) * scaleY);
var yLow = (int)(yBottom - (Data.Low[barCurrent] - minPrice) * scaleY);
var yClose = (int)(yBottom - (Data.Close[barCurrent] - minPrice) * scaleY);
// Find the price distance
double priceDistance = 0;
for (int point = 1; point < points; point++)
{
priceDistance +=
Math.Abs(Backtester.WayPoint(barCurrent, point).Price -
Backtester.WayPoint(barCurrent, point - 1).Price);
}
double dPriceForAPixel = (pointRight - pointLeft) / priceDistance;
// Points X
var aiPointX = new int[points];
aiPointX[0] = pointLeft;
for (int point = 1; point < points - 1; point++)
{
var iDistance =
(int)
(Math.Abs(Backtester.WayPoint(barCurrent, point).Price -
Backtester.WayPoint(barCurrent, point - 1).Price) * dPriceForAPixel);
aiPointX[point] = aiPointX[point - 1] + iDistance;
}
aiPointX[points - 1] = pointRight;
for (int point = 1; point < points - 1; point++)
{
if (aiPointX[point] - aiPointX[point - 1] < barPixels + 1)
{
aiPointX[point] = aiPointX[point - 1] + barPixels + 1;
}
}
for (int point = points - 2; point > 0; point--)
{
if (aiPointX[point + 1] - aiPointX[point] < barPixels + 1)
{
aiPointX[point] = aiPointX[point + 1] - barPixels - 1;
}
}
// Find coordinates of the Way Points
var pntWay = new Point[points];
for (int point = 0; point < points; point++)
{
var pointY = (int)(yBottom - (Backtester.WayPoint(barCurrent, point).Price - minPrice) * scaleY);
pntWay[point] = new Point(aiPointX[point], pointY);
}
// Horizontal grid and Price labels
for (double label = minPrice; label <= maxPrice + Data.InstrProperties.Point; label += delta)
{
var labelY = (int)(yBottom - (label - minPrice) * scaleY);
g.DrawString(label.ToString(Data.Ff), Font, brushGridText, xRight, labelY - Font.Height / 2 - 1);
g.DrawLine(penGrid, Border + space, labelY, xRight, labelY);
}
// Vertical Grid
g.DrawLine(penGrid, x + barPixels / 2 - 1, yTop, x + barPixels / 2 - 1, yBottom + 2);
for (int point = 0; point < points; point++)
{
var pt1 = new Point(pntWay[point].X, yTop);
var pt2 = new Point(pntWay[point].X, yBottom + 2);
var pt3 = new Point(pntWay[point].X - 5, yBottom + 4);
g.DrawLine(penGrid, pt1, pt2);
g.DrawString((point + 1).ToString(CultureInfo.InvariantCulture), Font, brushGridText, pt3);
}
// Bar Number
string barNumber = (barCurrent + 1).ToString(CultureInfo.InvariantCulture);
int stringX = x + barPixels / 2 - 1 - g.MeasureString(barNumber, Font).ToSize().Width / 2;
Brush barBrush = Backtester.BackTestEval(barCurrent) == BacktestEval.Ambiguous ? brushRed : brushGridText;
g.DrawString(barNumber, Font, barBrush, stringX, yBottom + 4);
// Draw the bar
g.DrawLine(penBarBorder, x + barPixels / 2 - 1, yLow, x + barPixels / 2 - 1, yHigh);
if (yClose < yOpen) // White bar
{
var rect = new Rectangle(x, yClose, barPixels - 2, yOpen - yClose);
var lgBrush = new LinearGradientBrush(rect, colorBarWight1, colorBarWight2, 5f);
g.FillRectangle(lgBrush, rect);
g.DrawRectangle(penBarBorder, x, yClose, barPixels - 2, yOpen - yClose);
}
else if (yClose > yOpen) // Black bar
{
var rect = new Rectangle(x, yOpen, barPixels - 2, yClose - yOpen);
var lgBrush = new LinearGradientBrush(rect, colorBarBlack1, colorBarBlack2, 5f);
g.FillRectangle(lgBrush, rect);
g.DrawRectangle(penBarBorder, x, yOpen, barPixels - 2, yClose - yOpen);
}
else // Cross
{
g.DrawLine(penBarBorder, x, yClose, x + barPixels - 2, yClose);
}
// Draw cancelled orders
for (int orderIndex = 0; orderIndex < Backtester.Orders(barCurrent); orderIndex++)
{
int ordNumber = Backtester.OrdNumb(barCurrent, orderIndex);
Order order = Backtester.OrdFromNumb(ordNumber);
if (order.OrdStatus != OrderStatus.Cancelled)
{
continue;
}
if (order.OrdPrice > Data.High[barCurrent] || order.OrdPrice < Data.Low[barCurrent])
{
continue;
}
int d = barPixels / 2 - 1;
int x1 = x + d;
int x2 = x + barPixels - 2;
var yDeal = (int)(yBottom - (order.OrdPrice - minPrice) * scaleY);
var pen = new Pen(LayoutColors.ColorChartGrid, 2);
if (order.OrdDir == OrderDirection.Buy)
{
g.DrawLine(pen, x, yDeal, x1, yDeal);
g.DrawLine(pen, x1, yDeal, x2, yDeal - d);
g.DrawLine(pen, x2 + 1, yDeal - d + 1, x1 + d / 2 + 1, yDeal - d + 1);
g.DrawLine(pen, x2, yDeal - d, x2, yDeal - d / 2);
}
else if (order.OrdDir == OrderDirection.Sell)
{
g.DrawLine(pen, x, yDeal + 1, x1 + 1, yDeal + 1);
g.DrawLine(pen, x1, yDeal, x2, yDeal + d);
g.DrawLine(pen, x1 + d / 2 + 1, yDeal + d, x2, yDeal + d);
g.DrawLine(pen, x2, yDeal + d, x2, yDeal + d / 2 + 1);
}
}
// Draw the deals on the bar
for (int pos = 0; pos < Backtester.Positions(barCurrent); pos++)
{
if (Backtester.PosTransaction(barCurrent, pos) == Transaction.Transfer)
{
continue;
}
var yDeal = (int)(yBottom - (Backtester.PosOrdPrice(barCurrent, pos) - minPrice) * scaleY);
if (Backtester.PosDir(barCurrent, pos) == PosDirection.Long ||
Backtester.PosDir(barCurrent, pos) == PosDirection.Short)
{
int d = barPixels / 2 - 1;
int x1 = x + d;
int x2 = x + barPixels - 2;
if (Backtester.OrdFromNumb(Backtester.PosOrdNumb(barCurrent, pos)).OrdDir == OrderDirection.Buy)
{
// Buy
var pen = new Pen(LayoutColors.ColorTradeLong, 2);
g.DrawLine(pen, x, yDeal, x1, yDeal);
g.DrawLine(pen, x1, yDeal, x2, yDeal - d);
g.DrawLine(pen, x2 + 1, yDeal - d + 1, x1 + d / 2 + 1, yDeal - d + 1);
g.DrawLine(pen, x2, yDeal - d, x2, yDeal - d / 2);
}
else
{
// Sell
var pen = new Pen(LayoutColors.ColorTradeShort, 2);
g.DrawLine(pen, x, yDeal + 1, x1 + 1, yDeal + 1);
g.DrawLine(pen, x1, yDeal, x2, yDeal + d);
g.DrawLine(pen, x1 + d / 2 + 1, yDeal + d, x2, yDeal + d);
g.DrawLine(pen, x2, yDeal + d, x2, yDeal + d / 2 + 1);
}
}
else if (Backtester.PosDir(barCurrent, pos) == PosDirection.Closed)
{
// Close position
int d = barPixels / 2 - 1;
int x1 = x + d;
int x2 = x + barPixels - 3;
var pen = new Pen(LayoutColors.ColorTradeClose, 2);
g.DrawLine(pen, x, yDeal, x1, yDeal);
g.DrawLine(pen, x1, yDeal + d / 2, x2, yDeal - d / 2);
g.DrawLine(pen, x1, yDeal - d / 2, x2, yDeal + d / 2);
}
}
// Draw position lots
for (int point = 0; point < points; point++)
{
int posNumber = Backtester.WayPoint(barCurrent, point).PosNumb;
if (posNumber == -1)
{
continue;
}
Position position = Backtester.PosFromNumb(posNumber);
double posLots = position.PosLots;
PosDirection posDirection = position.PosDir;
WayPointType wpType = Backtester.WayPoint(barCurrent, point).WpType;
var height = (int)(Math.Max(posLots * 2, 2));
int length = barPixels;
int posX = pntWay[point].X - (barPixels - 1) / 2;
int posY = yBottom - height;
if (point < points - 1)
{
length = pntWay[point + 1].X - pntWay[point].X + 1;
}
if (posDirection == PosDirection.Long)
{
// Long
var rect = new Rectangle(posX - 1, posY - 1, length, height + 2);
var lgBrush = new LinearGradientBrush(rect, colorLongTrade1, colorLongTrade2,
LinearGradientMode.Vertical);
rect = new Rectangle(posX - 1, posY, length, height);
g.FillRectangle(lgBrush, rect);
}
else if (posDirection == PosDirection.Short)
{
// Short
var rect = new Rectangle(posX - 1, posY - 1, length, height + 2);
var lgBrush = new LinearGradientBrush(rect, colorShortTrade1, colorShortTrade2,
LinearGradientMode.Vertical);
rect = new Rectangle(posX - 1, posY, length, height);
g.FillRectangle(lgBrush, rect);
}
else if (posDirection == PosDirection.Closed && wpType == WayPointType.Exit)
{
// Closed
var rect = new Rectangle(posX - 1, yBottom - 2, barPixels + 1, 2);
var lgBrush = new LinearGradientBrush(rect, colorClosedTrade1, colorClosedTrade2,
LinearGradientMode.Vertical);
rect = new Rectangle(posX, yBottom - 2, barPixels - 1, 2);
g.FillRectangle(lgBrush, rect);
}
}
// Draw the Beziers
for (int point = 1; point < points; point++)
{
Point ptKnot1 = pntWay[point - 1];
Point ptKnot2 = pntWay[point];
int ctrlX1 = (ptKnot1.X + ptKnot2.X) / 2;
int ctrlX2 = (ptKnot1.X + ptKnot2.X) / 2;
int ctrlY1 = ptKnot1.Y;
int ctrlY2 = ptKnot2.Y;
if (point > 1)
{
if (pntWay[point - 2].Y > pntWay[point - 1].Y && pntWay[point - 1].Y > pntWay[point].Y ||
pntWay[point - 2].Y < pntWay[point - 1].Y && pntWay[point - 1].Y < pntWay[point].Y)
{
ctrlY1 = (pntWay[point - 1].Y + pntWay[point].Y) / 2;
}
}
if (point < points - 1)
{
if (pntWay[point - 1].Y > pntWay[point].Y && pntWay[point].Y > pntWay[point + 1].Y ||
pntWay[point - 1].Y < pntWay[point].Y && pntWay[point].Y < pntWay[point + 1].Y)
{
ctrlY2 = (pntWay[point - 1].Y + pntWay[point].Y) / 2;
}
}
if (point == 1)
{
ctrlX1 = ptKnot1.X;
ctrlY1 = ptKnot1.Y;
}
if (point == points - 1)
{
ctrlX2 = ptKnot2.X;
ctrlY2 = ptKnot2.Y;
}
var ptControl1 = new Point(ctrlX1, ctrlY1);
var ptControl2 = new Point(ctrlX2, ctrlY2);
g.DrawBezier(penCross, ptKnot1, ptControl1, ptControl2, ptKnot2);
}
// Draw the WayPoints
Brush brushWeyPnt = new SolidBrush(LayoutColors.ColorChartBack);
for (int point = 0; point < points; point++)
{
g.FillEllipse(brushWeyPnt, pntWay[point].X - pointRadius, pntWay[point].Y - pointRadius, 2 * pointRadius,
2 * pointRadius);
g.DrawEllipse(penCross, pntWay[point].X - pointRadius, pntWay[point].Y - pointRadius, 2 * pointRadius,
2 * pointRadius);
}
// Draw O, H, L, C labels
for (int point = 0; point < points; point++)
{
WayPointType wpType = Backtester.WayPoint(barCurrent, point).WpType;
if (wpType != WayPointType.Open && wpType != WayPointType.High &&
wpType != WayPointType.Low && wpType != WayPointType.Close)
{
continue;
}
string label = "?";
switch (wpType)
{
case WayPointType.Open:
label = "O";
break;
case WayPointType.High:
label = "H";
break;
case WayPointType.Low:
label = "L";
break;
case WayPointType.Close:
label = "C";
break;
}
int xPoint = pntWay[point].X;
int yPoint = pntWay[point].Y - Font.Height - 3;
var stringFormatLabel = new StringFormat {
Alignment = StringAlignment.Center
};
g.DrawString(label, Font, brushGridText, xPoint, yPoint, stringFormatLabel);
}
// Draw the deals on the route
for (int point = 0; point < points; point++)
{
int posNumber = Backtester.WayPoint(barCurrent, point).PosNumb;
int ordNumber = Backtester.WayPoint(barCurrent, point).OrdNumb;
if (posNumber < 0 || ordNumber < 0)
{
continue;
}
PosDirection posDirection = Backtester.PosFromNumb(posNumber).PosDir;
OrderDirection ordDirection = Backtester.OrdFromNumb(ordNumber).OrdDir;
WayPointType wpType = Backtester.WayPoint(barCurrent, point).WpType;
if (wpType == WayPointType.None || wpType == WayPointType.Open || wpType == WayPointType.High ||
wpType == WayPointType.Low || wpType == WayPointType.Close)
{
continue;
}
int yDeal = pntWay[point].Y;
if (posDirection == PosDirection.Long || posDirection == PosDirection.Short ||
wpType == WayPointType.Cancel)
{
int d = barPixels / 2 - 1;
x = pntWay[point].X - d;
int x1 = pntWay[point].X;
int x2 = x + barPixels - 2;
if (ordDirection == OrderDirection.Buy)
{
// Buy
var pen = new Pen(LayoutColors.ColorTradeLong, 2);
if (wpType == WayPointType.Cancel)
{
pen = new Pen(LayoutColors.ColorChartGrid, 2);
}
g.DrawLine(pen, x, yDeal, x1, yDeal);
g.DrawLine(pen, x1, yDeal, x2, yDeal - d);
g.DrawLine(pen, x2 + 1, yDeal - d + 1, x1 + d / 2 + 1, yDeal - d + 1);
g.DrawLine(pen, x2, yDeal - d, x2, yDeal - d / 2);
}
else
{
// Sell
var pen = new Pen(LayoutColors.ColorTradeShort, 2);
if (wpType == WayPointType.Cancel)
{
pen = new Pen(LayoutColors.ColorChartGrid, 2);
}
g.DrawLine(pen, x, yDeal + 1, x1 + 1, yDeal + 1);
g.DrawLine(pen, x1, yDeal, x2, yDeal + d);
g.DrawLine(pen, x1 + d / 2 + 1, yDeal + d, x2, yDeal + d);
g.DrawLine(pen, x2, yDeal + d, x2, yDeal + d / 2 + 1);
}
}
if (posDirection == PosDirection.Closed)
{
// Close position
int d = barPixels / 2 - 1;
x = pntWay[point].X - d;
int x1 = pntWay[point].X;
int x2 = x + barPixels - 3;
var pen = new Pen(LayoutColors.ColorTradeClose, 2);
g.DrawLine(pen, x, yDeal, x1, yDeal);
g.DrawLine(pen, x1, yDeal + d / 2, x2, yDeal - d / 2);
g.DrawLine(pen, x1, yDeal - d / 2, x2, yDeal + d / 2);
}
}
// Coordinate axes
g.DrawLine(penAxes, xLeft, yTop - 4, xLeft, yBottom); // Vertical left line
g.DrawLine(penAxes, xLeft, yBottom, xRight, yBottom);
// Border
var penBorder = new Pen(Data.GetGradientColor(LayoutColors.ColorCaptionBack, -LayoutColors.DepthCaption),
Border);
g.DrawLine(penBorder, 1, infoRowHeight, 1, pnl.ClientSize.Height);
g.DrawLine(penBorder, pnl.ClientSize.Width - Border + 1, infoRowHeight, pnl.ClientSize.Width - Border + 1,
pnl.ClientSize.Height);
g.DrawLine(penBorder, 0, pnl.ClientSize.Height - Border + 1, pnl.ClientSize.Width,
pnl.ClientSize.Height - Border + 1);
}
