protected void DrawIcon(GraphicsWrapper g, Pen pen, Brush fill, Rectangle rectangle)
{
if (Visible == false)
{
return;
}
if (fill != null)
{
g.FillRectangle(fill, rectangle);
}
if (pen != null)
{
g.DrawRectangle(pen, rectangle);
}
}
void DrawHistogramBar(GraphicsWrapper g, ref PointF drawingPoint, float[] values, Pen pen, Brush fill,
int index, int previousItemIndex, float itemWidth, float itemMargin)
{
float y = drawingPoint.Y;
double heightSum = 0;
int actualSumCount = 0;
int unificationCount = index - previousItemIndex;
for (int i = previousItemIndex; i <= index; i++)
{
if (float.IsNaN(values[i]) ||
float.IsInfinity(values[i]))
{
continue;
}
heightSum += values[i];
actualSumCount++;
}
if (actualSumCount == 0)
{
return;
}
float height = (float)(heightSum / actualSumCount);
if (height < 0)
{
y += height;
height = -height;
}
if (fill != null)
{
g.FillRectangle(fill, drawingPoint.X, y, (itemWidth) * unificationCount, height);
}
if (pen != null)
{
g.DrawRectangle(pen, drawingPoint.X, y, itemWidth, height);
}
}
/// <summary>
/// Enter locked.
/// </summary>
void DrawCandleStick(GraphicsWrapper g, ref PointF startingPoint, BarData barData, float itemWidth, float itemMargin, int itemUnitification)
{
if (barData.BarIsRising || (barData.IsHigherPrev && barData.BarBodyLength == 0))
{
if (_risingBarFill != null)
{
g.FillRectangle(_risingBarFill, startingPoint.X, startingPoint.Y + (float)barData.Open, itemWidth, (float)barData.BarBodyLength);
}
if (_risingBarPen != null)
{
if (itemWidth > 4)
{
g.DrawRectangle(_risingBarPen, startingPoint.X, startingPoint.Y + (float)barData.Open, itemWidth, (float)barData.BarBodyLength);
// Harry -- Draw a line for open = = close
if ((float)barData.BarBodyLength <= 0)
{
g.DrawLine(_risingBarPen,
startingPoint.X,
startingPoint.Y + (float)barData.Close,
startingPoint.X + itemWidth,
startingPoint.Y + (float)barData.Close);
}
}
else
{
g.FillRectangle(Brushes.Green, startingPoint.X, startingPoint.Y + (float)barData.Open, itemWidth, (float)barData.BarBodyLength);
}
// Lower shadow
g.DrawLine(_risingBarPen,
startingPoint.X + itemWidth / 2,
startingPoint.Y + (float)barData.Low,
startingPoint.X + itemWidth / 2,
startingPoint.Y + (float)barData.Open);
// Upper shadow
g.DrawLine(_risingBarPen,
startingPoint.X + itemWidth / 2,
(float)(startingPoint.Y + barData.High),
startingPoint.X + itemWidth / 2,
(float)(startingPoint.Y + barData.Close));
//Console.WriteLine(" startingPoint.X " + startingPoint.X + " startingPoint.Y " + startingPoint.Y + " (float)barData.Low " + (float)barData.Low + " (float)barData.Close " + (float)barData.Close + " (float)barData.High " + (float)barData.High + " (float)barData.Open " + (float)barData.Open);
}
}
else
{
if (_fallingBarFill != null)
{
g.FillRectangle(_fallingBarFill, startingPoint.X, startingPoint.Y + (float)barData.Close, itemWidth, (float)barData.BarBodyLength);
// Harry -- Draw a line for open = = close
if ((float)barData.BarBodyLength <= 0)
{
g.DrawLine(_fallingBarPen,
startingPoint.X,
startingPoint.Y + (float)barData.Close,
startingPoint.X + itemWidth,
startingPoint.Y + (float)barData.Close);
}
}
if (_fallingBarPen != null)
{
if (itemWidth >= 4)
{// Only if an item is clearly visible, show the border, otherwise, hide to improver overal visibility.
// Showing this border adds nice detail on close zooming, but not useful otherwise.
g.DrawRectangle(_fallingBarPen, startingPoint.X, startingPoint.Y + (float)barData.Close, itemWidth, (float)barData.BarBodyLength);
}
// Lower shadow
g.DrawLine(_fallingBarPen,
startingPoint.X + itemWidth / 2,
startingPoint.Y + (float)barData.Low,
startingPoint.X + itemWidth / 2,
startingPoint.Y + (float)barData.Close);
// Upper shadow
g.DrawLine(_fallingBarPen,
startingPoint.X + itemWidth / 2,
(float)(startingPoint.Y + barData.High),
startingPoint.X + itemWidth / 2,
(float)(startingPoint.Y + barData.Open));
}
}
}
void DrawHistogramBar(GraphicsWrapper g, ref PointF drawingPoint, float[] values, Pen pen, Brush fill,
int index, int previousItemIndex, float itemWidth, float itemMargin)
{
float y = drawingPoint.Y;
double heightSum = 0;
int actualSumCount = 0;
int unificationCount = index - previousItemIndex;
for (int i = previousItemIndex; i <= index; i++)
{
if (float.IsNaN(values[i])
|| float.IsInfinity(values[i]))
{
continue;
}
heightSum += values[i];
actualSumCount++;
}
if (actualSumCount == 0)
{
return;
}
float height = (float)(heightSum / actualSumCount);
if (height < 0)
{
y += height;
height = -height;
}
if (fill != null)
{
g.FillRectangle(fill, drawingPoint.X, y, (itemWidth) * unificationCount, height);
}
if (pen != null)
{
g.DrawRectangle(pen, drawingPoint.X, y, itemWidth, height);
}
}
protected void DrawIcon(GraphicsWrapper g, Pen pen, Brush fill, Rectangle rectangle)
{
if (Visible == false)
{
return;
}
if (fill != null)
{
g.FillRectangle(fill, rectangle);
}
if (pen != null)
{
g.DrawRectangle(pen, rectangle);
}
}
void DrawSelection(GraphicsWrapper g)
{
if (CurrentSelectionRectangle.HasValue == false)
{
return;
}
RectangleF selectionRectangle = CurrentSelectionRectangle.Value;
if (selectionRectangle.Width > 0 && selectionRectangle.Height > 0 &&
_lastDrawingSpaceMouseRightButtonPosition.HasValue && _currentDrawingSpaceMousePosition.HasValue)
{
if (_selectionPen != null)
{
g.DrawRectangle(_selectionPen, selectionRectangle.X, selectionRectangle.Y, selectionRectangle.Width, selectionRectangle.Height);
}
if (_selectionFill != null)
{
g.FillRectangle(_selectionFill, selectionRectangle);
}
}
}
void DrawGraphicSeriesLabels(GraphicsWrapper g, int initialMarginLeft)
{
_currentLabelsRectangles = new Rectangle[_series.Count];
for (int i = 0; i < _series.Count; i++)
{
if (i == 0)
{
_currentLabelsRectangles[0].X = initialMarginLeft;
}
else
{
_currentLabelsRectangles[i].X = _currentLabelsRectangles[i - 1].Right + (int)_labelsMargin;
}
_currentLabelsRectangles[i].Y = (int)_labelsTopMargin;
SizeF seriesSize = g.MeasureString(_series[i].Name, _labelsFont);
_currentLabelsRectangles[i].Size = new Size((int)seriesSize.Width, (int)seriesSize.Height);
int iconWidth = 18;
// Add space for series icon
_currentLabelsRectangles[i].Width += iconWidth;
if (_labelsFill != null)
{
g.FillRectangle(_labelsFill, _currentLabelsRectangles[i]);
}
if (_labelsFont != null)
{
g.DrawString(_series[i].Name, _labelsFont, _labelsFontBrush, _currentLabelsRectangles[i].X + iconWidth, _currentLabelsRectangles[i].Y);
}
_series[i].DrawSeriesIcon(g, new Rectangle(_currentLabelsRectangles[i].X + 2, _currentLabelsRectangles[i].Y + 2, 14, _currentLabelsRectangles[i].Height - 4));
}
}
