/// <summary>
/// 繪製 Layer 圖層
/// </summary>
/// <param name="layer">Layer 圖層</param>
/// <param name="property">Chart 屬性參數</param>
/// <param name="onlyUpdateLastBar">是否僅更新最後一根Bar(Plot可以使用此旗標來判斷是否只繪製最後一根Bar, 也可以忽略此旗標全部的Bar都更新)</param>
/// <returns>返回值:true=繪製 Layer 完成, false=繪製 Layer 未完成</returns>
public override bool DrawLayer(Layer layer, ChartProperty property, bool onlyUpdateLastBar)
{
List <AbstractPlot> cPlots = layer.Plots;
int iCount = cPlots.Count;
if (iCount > 0)
{
AxisY cAxisY = layer.AxisY;
bool bRefresh = cAxisY.Refresh;
if (onlyUpdateLastBar || bRefresh)
{
for (int i = 0; i < iCount; i++)
{
AbstractPlot cPlot = cPlots[i];
if (cPlot.IsSubChart)
{
if (!cPlot.DrawPlot(layer, property, onlyUpdateLastBar))
{
return(false);
}
}
}
if (bRefresh)
{
//繪製 Layer 邊框
Rectangle cRect = layer.LayerRectangleWithoutAxisY;
IntPtr cOldPen = __cGDI.SelectPen(new PowerLanguage.PenStyle(property.ForeColor, 1));
__cGDI.DrawRectangle(0, cRect.Y, cRect.Width, cRect.Height);
__cGDI.RemoveObject(__cGDI.SelectPen(cOldPen));
}
}
}
return(true);
}
internal static AbstractPlot Create(GdiEngine engine, ZChart chart, object source, ChartSetting chartSetting)
{
AbstractPlot cPlot = null;
EChartType cChartType = chartSetting.ChartType;
switch (cChartType)
{
case EChartType.Candlestick:
cPlot = new PlotCandlestick(engine, source, chartSetting);
break;
case EChartType.HLC:
cPlot = new PlotHlc(engine, source, chartSetting);
break;
case EChartType.OHLC:
cPlot = new PlotOhlc(engine, source, chartSetting);
break;
case EChartType.ClosingLine:
cPlot = new PlotClosingLine(engine, source, chartSetting);
break;
case EChartType.TextObject:
cPlot = new PlotTextObject(engine, chart, source, chartSetting);
break;
case EChartType.TradeObject:
cPlot = new PlotTradeObject(engine, source, chartSetting);
break;
}
return(cPlot);
}
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);
}
