public override bool Paint()
{
if (_series.OHLCType == SeriesTypeOHLC.Volume)
{
return(false);
}
//Find Series
Series open = _series._chartPanel.GetSeriesOHLCV(_series, SeriesTypeOHLC.Open);
if (open == null || open.RecordCount == 0 || open.Painted)
{
return(false);
}
Series high = _series._chartPanel.GetSeriesOHLCV(_series, SeriesTypeOHLC.High);
if (high == null || high.RecordCount == 0 || high.Painted)
{
return(false);
}
Series low = _series._chartPanel.GetSeriesOHLCV(_series, SeriesTypeOHLC.Low);
if (low == null || low.RecordCount == 0 || low.Painted)
{
return(false);
}
Series close = _series._chartPanel.GetSeriesOHLCV(_series, SeriesTypeOHLC.Close);
if (close == null || close.RecordCount == 0 || close.Painted)
{
return(false);
}
_series = close;
open.Painted = high.Painted = low.Painted = close.Painted = true;
CalculateCandleSpacing();
if (ChartX._barSpacing < 0)
{
return(false);
}
_upColor = _series._upColor.HasValue ? _series._upColor.Value : ChartX.UpColor;
_downColor = _series._downColor.HasValue ? _series._downColor.Value : ChartX.DownColor;
if (_oldOptimizePainting.HasValue && _oldOptimizePainting.Value != ChartX.OptimizePainting)
{
if (!ChartX.OptimizePainting)
{
Canvas c = _series._chartPanel._rootCanvas;
c.Children.Remove(_pathCandlesDown);
c.Children.Remove(_pathCandlesUp);
c.Children.Remove(_pathWicksUp);
c.Children.Remove(_pathWicksDown);
_pathCandlesDown = null;
_pathCandlesUp = null;
_pathWicksUp = null;
_pathWicksDown = null;
}
else
{
_candles.RemoveAll();
}
}
_oldOptimizePainting = ChartX.OptimizePainting;
if (ChartX.OptimizePainting)
{
return(PaintOptimized(new[] { open, high, low, close }, _series));
}
if (!_subscribedToCustomBrush)
{
_subscribedToCustomBrush = true;
ChartX.OnCandleCustomBrush += ChartX_OnCandleCustomBrush;
}
//bool setBrushes = false;
if (!_old3DStyle.HasValue || _old3DStyle.Value != ChartX.ThreeDStyle ||
!_oldUpColor.HasValue || _oldUpColor.Value != _upColor ||
!_oldDownColor.HasValue || _oldDownColor.Value != _downColor ||
(ChartX._candleDownOutlineColor.HasValue && ChartX._candleDownOutlineColor.Value != _oldCandleDownOutline) ||
ChartX._candleUpOutlineColor.HasValue && ChartX._candleUpOutlineColor.Value != _oldCandleUpOutline)
{
//setBrushes = true;
_old3DStyle = ChartX.ThreeDStyle;
_oldUpColor = _upColor;
_oldDownColor = _downColor;
_upBrush = !ChartX.ThreeDStyle
? (Brush) new SolidColorBrush(_upColor)
: new LinearGradientBrush
{
StartPoint = new Point(0, 0.5),
EndPoint = new Point(1, 0.5),
GradientStops =
{
new GradientStop
{
Color = _upColor,
Offset = 0
},
new GradientStop
{
Color = Constants.FadeColor,
Offset = 1.25
}
}
};
#if WPF
_upBrush.Freeze();
#endif
_downBrush = !ChartX.ThreeDStyle
? (Brush) new SolidColorBrush(_downColor)
: new LinearGradientBrush
{
StartPoint = new Point(0, 0.5),
EndPoint = new Point(1, 0.5),
GradientStops =
{
new GradientStop
{
Color = _downColor,
Offset = 0
},
new GradientStop
{
Color = Constants.FadeColor,
Offset = 1.25
}
}
};
#if WPF
_downBrush.Freeze();
#endif
if (ChartX._candleDownOutlineColor.HasValue)
{
_oldCandleDownOutline = ChartX._candleDownOutlineColor.Value;
_candleDownOutlineBrush = new SolidColorBrush(ChartX._candleDownOutlineColor.Value);
#if WPF
_candleDownOutlineBrush.Freeze();
#endif
}
if (ChartX._candleUpOutlineColor.HasValue)
{
_oldCandleUpOutline = ChartX._candleUpOutlineColor.Value;
_candleUpOutlineBrush = new SolidColorBrush(ChartX._candleUpOutlineColor.Value);
#if WPF
_candleUpOutlineBrush.Freeze();
#endif
}
}
int n;
_candles.C = _series._chartPanel._rootCanvas;
_candles.Start();
for (n = ChartX._startIndex; n < ChartX._endIndex; n++)
{
if (!open[n].Value.HasValue || !high[n].Value.HasValue || !low[n].Value.HasValue || !close[n].Value.HasValue)
{
continue;
}
Candle candle = _candles.GetPaintObject(_upBrush, _downBrush);
candle.Init(_series);
//if (setBrushes) //because if we have a small number of bars, then enlarge the new brushes won't be propagated to new candles.
candle.SetBrushes(_upBrush, _downBrush, _candleUpOutlineBrush, _candleDownOutlineBrush);
candle.SetValues(open[n].Value.Value, high[n].Value.Value, low[n].Value.Value, close[n].Value.Value, ChartX._barSpacing,
_halfwick, n - ChartX._startIndex);
}
_candles.Stop();
_candles.Do(c => c.ZIndex = ZIndexConstants.PriceStyles1);
return(true);
}