public void DrawIt(FireflySerialMessage m)
{
Graphics graphics = CreateGraphics();
var leftValid = new Rectangle(20, 20, 50, 50);
var leftInvalid = new Rectangle(80, 20, 50, 50);
var rightInvalid = new Rectangle(180, 20, 50, 50);
var rightValid = new Rectangle(240, 20, 50, 50);
var leftGround = new Rectangle(20, 100, 10, 10);
var rightGround = new Rectangle(280, 100, 10, 10);
graphics.FillRectangle(Brushes.Gray, leftValid);
if (m.LeftValid)
{
graphics.FillRectangle(Brushes.Red, leftValid);
}
graphics.DrawRectangle(Pens.Black, leftValid);
graphics.FillRectangle(Brushes.Gray, leftInvalid);
if (m.LeftInvalid)
{
graphics.FillRectangle(Brushes.White, leftInvalid);
}
graphics.DrawRectangle(Pens.Black, leftInvalid);
graphics.FillRectangle(Brushes.Gray, rightValid);
if (m.RightValid)
{
graphics.FillRectangle(Brushes.Green, rightValid);
}
graphics.DrawRectangle(Pens.Black, rightValid);
graphics.FillRectangle(Brushes.Gray, rightInvalid);
if (m.RightInvalid)
{
graphics.FillRectangle(Brushes.White, rightInvalid);
}
graphics.DrawRectangle(Pens.Black, rightInvalid);
graphics.FillEllipse(Brushes.Gray, leftGround);
if (m.LeftGround)
{
graphics.FillEllipse(Brushes.Yellow, leftGround);
}
graphics.DrawEllipse(Pens.Black, leftGround);
graphics.FillEllipse(Brushes.Gray, rightGround);
if (m.RightGround)
{
graphics.FillEllipse(Brushes.Yellow, rightGround);
}
graphics.DrawEllipse(Pens.Black, rightGround);
}
private void SerialReader_DoWork(object sender, DoWorkEventArgs e)
{
while (true)
{
var b = _serialPort.ReadByte();
var msg = new FireflySerialMessage();
if ((b & 0x80) > 0)
{
// basic message
msg.Buzzer = (b & 0x40) > 0;
msg.RightGround = (b & 0x20) > 0;
msg.LeftGround = (b & 0x10) > 0;
msg.RightInvalid = (b & 0x08) > 0;
msg.LeftInvalid = (b & 0x04) > 0;
msg.RightValid = (b & 0x02) > 0;
msg.LeftValid = (b & 0x01) > 0;
DrawIt(msg);
}
else
{
// extended message
}
}
}