drawXAxisValue static method

void drawXAxisValue(Canvas c, String text, double? x, double y, TextPainter paint, MPPointF anchor, double angleDegrees, XAxisPosition position,)

Implementation

static void drawXAxisValue(
    Canvas c,
    String text,
    double? x,
    double y,
    TextPainter paint,
    MPPointF anchor,
    double angleDegrees,
    XAxisPosition position) {
  double drawOffsetX = 0;
  double drawOffsetY = 0;

  var originalTextAlign = paint.textAlign;
  paint.textAlign = TextAlign.left;

  if (angleDegrees != 0) {
    double translateX = x!;
    double translateY = y;

    c.save();
    c.translate(translateX, translateY);
    c.rotate(angleDegrees);

    paint.text = TextSpan(text: text, style: paint.text!.style);
    paint.layout();
    switch (position) {
      case XAxisPosition.bottom:
        paint.paint(c, Offset(drawOffsetX, drawOffsetY));
        break;
      case XAxisPosition.bottomInside:
        paint.paint(c, Offset(drawOffsetX, drawOffsetY));
        break;
      case XAxisPosition.top:
        paint.paint(c, Offset(drawOffsetX, drawOffsetY));
        break;
      case XAxisPosition.topInside:
        paint.paint(c, Offset(drawOffsetX, drawOffsetY));
        break;
      case XAxisPosition.bothSided:
        break;
    }

    c.restore();
  } else {
    drawOffsetX += x!;
    drawOffsetY += y;

    paint.text = TextSpan(text: text, style: paint.text!.style);
    paint.layout();
    switch (position) {
      case XAxisPosition.bottom:
        paint.paint(c, Offset(drawOffsetX - paint.width / 2, drawOffsetY));
        break;
      case XAxisPosition.bottomInside:
        paint.paint(
            c,
            Offset(
                drawOffsetX - paint.width / 2, drawOffsetY - paint.height));
        break;
      case XAxisPosition.top:
        paint.paint(
            c,
            Offset(
                drawOffsetX - paint.width / 2, drawOffsetY - paint.height));
        break;
      case XAxisPosition.topInside:
        paint.paint(c, Offset(drawOffsetX - paint.width / 2, drawOffsetY));
        break;
      case XAxisPosition.bothSided:
        break;
    }
  }

  paint.textAlign = originalTextAlign;
}