drawText method

@override void drawText(Canvas canvas, CandleEntity data, double x)

Implementation

@override
void drawText(Canvas canvas, CandleEntity data, double x) {
  if (isLine == true) return;
  TextSpan? span;
  if (state == MainState.mA) {
    // span = TextSpan(
    //   children: _createMATextSpan(data),
    // );
    String value = format((data.maValueList ?? [0])[0]);
    span = TextSpan(
      children: [
        TextSpan(
          children: _createMATextSpan(data),
        ),
        if (chartStyle.isShowEma && value.length <= 13)
          //EMA
          TextSpan(text: '\n'),
        if (chartStyle.isShowEma)
          TextSpan(
            children: _createEMATextSpan(data),
          ),
      ],
    );
  } else if (state == MainState.bOLL) {
    span = TextSpan(
      children: [
        if (data.up != 0)
          TextSpan(
              text: "BOLL:${format(data.mb)}    ",
              style: getTextStyle(chartColors.ma5Color)),
        if (data.mb != 0)
          TextSpan(
              text: "UB:${format(data.up)}    ",
              style: getTextStyle(chartColors.ma10Color)),
        if (data.dn != 0)
          TextSpan(
              text: "LB:${format(data.dn)}    ",
              style: getTextStyle(chartColors.ma30Color)),
      ],
    );
  }
  if (span == null) {
    return;
  }
  TextPainter tp = TextPainter(text: span, textDirection: TextDirection.ltr);
  tp.layout();
  if (chartStyle.isShowStrategyTypeTop) {
    tp.paint(canvas, Offset(x, chartRect.top - topPadding));
  }
}