paint method

@override void paint(Canvas canvas, Size size)

paint chart

Implementation

@override
void paint(Canvas canvas, Size size) {
  canvas.clipRect(Rect.fromLTRB(0, 0, size.width, size.height));
  mDisplayHeight = size.height - mTopPadding - mBottomPadding;
  mWidth = size.width;
  initRect(size);
  calculateValue();
  initChartRenderer();

  canvas.save();
  canvas.scale(1, 1);
  drawBg(canvas, size);
  drawGrid(canvas);
  if (datas != null && datas!.isNotEmpty) {
    drawChart(canvas, size);
    drawVerticalText(canvas);
    drawDate(canvas, size);

    drawText(canvas, datas!.last, 5);
    drawMaxAndMin(canvas);
    drawNowPrice(canvas);

    if (isLongPress == true || (isTapShowInfoDialog && isOnTap)) {
      drawCrossLineText(canvas, size);
    }
  }
  canvas.restore();
}