public override bool DrawPlot(Layer layer, ChartProperty property, bool onlyUpdateLastBar)
{
AxisX cAxisX = layer.AxisX;
Rectangle cRectY = this.AxisY.AxisRectangle;
int iIndex = 0;
int iOldBKColor = __cGDI.SelectBackground(property.BackgroundColor);
PowerLanguage.PenStyle cLinePen = this.ChartSetting.PenStyles[0];
IntPtr cOldPen = __cGDI.SelectPen(cLinePen);
if (onlyUpdateLastBar)
{
iIndex = cAxisX.BarNumber + cAxisX.BarCount - 1;
iIndex = (iIndex > cAxisX.DataCount) ? cAxisX.DataCount : iIndex;
int iOffset = this.ConvertAxisScaleIndexToOffset(iIndex);
int iX = cAxisX.ConvertBarNumberToWidth(iIndex).CenterPoint;
int iPrevX = cAxisX.ConvertBarNumberToWidth(iIndex - 1).CenterPoint;
if (!DrawClosingLine(iOffset, cRectY.Y, iX, iPrevX, new PowerLanguage.PenStyle(property.BackgroundColor, cLinePen.Width, cLinePen.Pattern)))
{
return(false);
}
}
else
{
this.RefreshAxisY(property);
__dPrevClose = double.NaN;
int iCount = cAxisX.BarCount;
int iStartIndex = cAxisX.BarNumber;
for (int i = 0; i < iCount; i++)
{
iIndex = iStartIndex + i;
if (iIndex > cAxisX.DataCount)
{
--iIndex;
break;
}
else
{
if (__dPrevClose != double.NaN)
{
int iOffset = this.ConvertAxisScaleIndexToOffset(iIndex);
int iX = cAxisX.ConvertBarNumberToWidth(iIndex).CenterPoint;
int iPrevX = cAxisX.ConvertBarNumberToWidth(iIndex - 1).CenterPoint;
DrawClosingLine(iOffset, cRectY.Y, iX, iPrevX, null);
}
}
}
if (this.PlotIndex == 0) //Plot 索引值為 0 才印出標題(其他的索引就不需要再印出標題)
{
DrawTitle(cRectY, property);
}
}
__cGDI.RemoveObject(__cGDI.SelectPen(cOldPen));
if (!layer.Drawable)
{
layer.LegendIndex = iIndex;
if (this.ChartSetting.IsShowNewPrice) //是否要顯示新價格線
{
this.AxisY.Value = __cBars.Close[0]; //指定最新收盤價格
this.Painter.DrawAxisValueLabel(this.AxisY, this.ChartSetting.LegendColor, property);
}
}
this.DrawLegend(layer.LegendIndex, property);
__cGDI.SelectBackground(iOldBKColor);
return(true);
}
protected override void CreateAxisY(ChartProperty property, Rectangle axisRectangle)
{
InstrumentSettings cSettings = __cBars.Info as InstrumentSettings;
this.AxisY = AbstractPlot.CreateAxisY(this.Painter, this.ChartSetting.Axis, cSettings.Property.PriceScaleRule as IPriceScale, property, axisRectangle);
}
