/// <summary>
/// 設定使用者自訂的動作介面(繪製操作介面)
/// </summary>
/// <param name="name">IAction 介面動作名稱</param>
/// <param name="pen">筆刷樣式</param>
/// <returns>返回值: true=設定成功, false=設定失敗</returns>
public bool SetCustomAction(string name, PowerLanguage.PenStyle pen = null)
{
bool bRet = __cBehavior.SetCustomAction(name, pen);
int iCount = __cLayers.Count;
for (int i = 0; i < iCount; i++)
{
__cLayers[i].Drawable = bRet;
}
this.Refresh();
return(bRet);
}
private bool DrawClosingLine(int offset, int top, int x, int prevX, PowerLanguage.PenStyle erasePen)
{
double dClose = 0;
bool bCheck = CheckBarsValue(offset, out dClose);
if (bCheck)
{
int iPrevClose = top + this.AxisY.ConvertValueToHeight(__dPrevClose);
int iCurrentClose = top + this.AxisY.ConvertValueToHeight(dClose);
if (erasePen != null)
{
int iLastClose = top + this.AxisY.ConvertValueToHeight(__dLastClose);
IntPtr cOldPen = __cGDI.SelectPen(erasePen);
__cGDI.DrawLine(prevX, iPrevClose, x, iLastClose);
__cGDI.SelectPen(cOldPen);
}
__dLastClose = dClose;
__cGDI.DrawLine(prevX, iPrevClose, x, iCurrentClose);
}
return(bCheck);
}
private void SetChartSetting() {
PenStyle[] cPenStyles = new PenStyle[2];
int iChartIndex = listChartType.SelectedIndex;
switch (iChartIndex) {
case 0: //美國線
__cChartSetting.ChartType = EChartType.OHLC;
break;
case 1: //HLC線
__cChartSetting.ChartType = EChartType.HLC;
break;
case 2: //蠟燭線
__cChartSetting.ChartType = EChartType.Candlestick;
cPenStyles = new PenStyle[3];
break;
case 3: //收盤線
__cChartSetting.ChartType = EChartType.CloseLine;
break;
}
cPenStyles[0] = new PenStyle(colorUp.SelectedColor, comboUpWidth.SelectedIndex + 1);
cPenStyles[1] = new PenStyle(colorDown.SelectedColor, comboDownWidth.SelectedIndex + 1);
if (iChartIndex == 2) {
cPenStyles[2] = new PenStyle(colorLine.SelectedColor, comboLineWidth.SelectedIndex + 1);
}
__cChartSetting.PenStyles = cPenStyles;
__cChartSetting.IsSubChart = listSubChart.SelectedIndex == 0;
__cChartSetting.IsShowNewPrice = checkShowNewPrice.Checked;
//座標資訊設定
AxisSetting cAxisSetting = new AxisSetting();
int iAxisIndex = listAxisRange.SelectedIndex;
switch (iAxisIndex) {
case 0: //目前區間
cAxisSetting.AxisScope = EAxisScope.CurrentScope;
break;
case 1: //全部數列
cAxisSetting.AxisScope = EAxisScope.AllScope;
break;
case 2: //變動大小
cAxisSetting.AxisScope = EAxisScope.ChangeScope;
break;
case 3: //價格區間
cAxisSetting.AxisScope = EAxisScope.PriceScaleScope;
break;
}
if (checkMargin.Checked) {
double dValue = 0;
if (double.TryParse(txtTopMargin.Text, out dValue)) {
cAxisSetting.MarginTop = dValue;
}
if (double.TryParse(txtBottomMargin.Text, out dValue)) {
cAxisSetting.MarginBottom = dValue;
}
}
if (checkManualAxis.Checked) {
double dValue = 0;
if (radioScaleGap.Checked) {
if (double.TryParse(txtScaleGap.Text, out dValue)) {
cAxisSetting.ScaleMode = EAxisScaleMode.ScaleGap;
}
} else if (radioScaleCount.Checked) {
if (double.TryParse(txtScaleCount.Text, out dValue)) {
cAxisSetting.ScaleMode = EAxisScaleMode.ScaleCount;
}
} else {
cAxisSetting.ScaleMode = EAxisScaleMode.None;
}
cAxisSetting.ScaleValue = dValue;
} else {
cAxisSetting.ScaleMode = EAxisScaleMode.None;
}
__cChartSetting.Axis = cAxisSetting;
}
/// <summary>
/// 設定使用者自訂畫筆樣式
/// </summary>
/// <param name="pen">筆刷樣式</param>
public void SetCustomPenStyle(PowerLanguage.PenStyle pen)
{
__cBehavior.SetCustomPenStyle(pen);
}
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);
}
