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;
  TextSpan? span2;
  TextSpan? span3;
  TextSpan? span4;
  if (state == MainState.MA) {
    span = TextSpan(
      children: _createMATextSpan(data),
    );
  } else if (state == MainState.BOLL) {
    span = TextSpan(
      children: [
        if (data.up != 0)
          TextSpan(
              text: "BOLL:${format(data.mb)}    ",
              style: getTextStyle(this.chartColors.ma5Color)),
        if (data.mb != 0)
          TextSpan(
              text: "UB:${format(data.up)}    ",
              style: getTextStyle(this.chartColors.ma10Color)),
        if (data.dn != 0)
          TextSpan(
              text: "LB:${format(data.dn)}    ",
              style: getTextStyle(this.chartColors.ma30Color)),
      ],
    );
    span2 = TextSpan(children: []);
    span3 = TextSpan(children: []);
  } else if (state == MainState.MAC) {
    span = TextSpan(children: [
      if (data.top_box != 0)
        TextSpan(
            text: "TBox(5) (${format(data.top_box)})  ",
            style: getTextStyle2(this.chartColors.TBoxColor)),
      if (data.bottom_box != 0)
        TextSpan(
            text: "BBox(5) (${format(data.bottom_box)})  ",
            style: getTextStyle2(this.chartColors.BBoxColor)),
      if (data.moving_average != 0)
        TextSpan(
            text: "Pohon (${format(data.moving_average)})  ",
            style: getTextStyle2(this.chartColors.ma20Color)),
      if (data.mac_high != 0)
        TextSpan(
            text: "Orange (${format(data.mac_high)})  ",
            style: getTextStyle2(this.chartColors.maHighColor)),
    ]);
    span2 = TextSpan(
      children: [],
    );
    span3 = TextSpan(
      children: [],
    );
  }
  if (span == null) return;
  TextPainter tp = TextPainter(text: span, textDirection: TextDirection.ltr);
  tp.layout();
  tp.paint(canvas, Offset(x, chartRect.top - topPadding));

  TextPainter tp2 =
      TextPainter(text: span2, textDirection: TextDirection.ltr);
  tp2.layout();
  tp2.paint(canvas, Offset(x, chartRect.top - topPadding + 15));

  TextPainter tp3 =
      TextPainter(text: span3, textDirection: TextDirection.ltr);
  tp3.layout();
  tp3.paint(canvas, Offset(x, chartRect.top - topPadding + 30));
}