drawText method

  1. @override
void drawText(
  1. Canvas canvas,
  2. MACDEntity data,
  3. double x
)
override

Implementation

@override
void drawText(Canvas canvas, MACDEntity data, double x) {
  List<TextSpan>? children;
  switch (state) {
    case SecondaryState.MACD:
      children = [
        TextSpan(text: "MACD(12,26,9)    ", style: getTextStyle(style.colors.defaultText)),
        if (data.macd != 0) TextSpan(text: "MACD:${format(data.macd)}    ", style: getTextStyle(style.colors.macd)),
        if (data.dif != 0) TextSpan(text: "DIF:${format(data.dif)}    ", style: getTextStyle(style.colors.dif)),
        if (data.dea != 0) TextSpan(text: "DEA:${format(data.dea)}    ", style: getTextStyle(style.colors.dea))
      ];
      break;
    case SecondaryState.KDJ:
      children = [
        TextSpan(text: "KDJ(9,1,3)    ", style: getTextStyle(style.colors.defaultText)),
        if (data.macd != 0) TextSpan(text: "K:${format(data.k)}    ", style: getTextStyle(style.colors.k)),
        if (data.dif != 0) TextSpan(text: "D:${format(data.d)}    ", style: getTextStyle(style.colors.d)),
        if (data.dea != 0) TextSpan(text: "J:${format(data.j)}    ", style: getTextStyle(style.colors.j))
      ];
      break;
    case SecondaryState.RSI:
      children = [
        TextSpan(text: "RSI(14):${format(data.rsi)}    ", style: getTextStyle(style.colors.rsi))
      ];
      break;
    case SecondaryState.WR:
      children = [
        TextSpan(text: "WR(14):${format(data.r)}    ", style: getTextStyle(style.colors.rsi))
      ];
      break;
    case SecondaryState.CCI:
      children = [
        TextSpan(text: "CCI(14):${format(data.cci)}    ", style: getTextStyle(style.colors.rsi))
      ];
      break;
    default:
      break;
  }
  TextPainter tp = TextPainter(text: TextSpan(children: children ?? []), textDirection: TextDirection.ltr);
  tp.layout();
  tp.paint(canvas, Offset(x, chartRect.top - style.padding.top));
}