draw method

void draw(
  1. Canvas canvas,
  2. Paint paint
)

Implementation

void draw(Canvas canvas, Paint paint) {
  canvas.drawLine(
      Offset(controller.offset.dx + start.dx,
          controller.offset.dy + start.dy * controller.zoom),
      Offset(controller.offset.dx + end.dx,
          controller.offset.dy + end.dy * controller.zoom),
      paint);
}