private void button_pauseResume_Click(object sender, EventArgs e)
{
// Pause the print. Can only pause print once all drawing bytes have been sent to the Arduino.
if (currentPrinterState == printerState.printInProgress)
{
currentPrinterState = printerState.printPaused;
textBox_Status.Text = "Print Paused";
button_pauseResume.Text = "Resume Print";
// Send start print command to Arduino
if (serialPort1.IsOpen)
{
dataByte = 0;
serialPort1.Write(new byte[2] {
startByte, pausePrintCommand
}, 0, 2);
}
}
// Resume the print
else if (currentPrinterState == printerState.printPaused)
{
textBox_Status.Text = "Printing";
currentPrinterState = printerState.printInProgress;
button_pauseResume.Text = "Pause Print";
// Send stop print command to Arduino
if (serialPort1.IsOpen)
{
dataByte = 0;
serialPort1.Write(new byte[2] {
startByte, resumePrintCommand
}, 0, 2);
}
}
}
private void button_startStop_Click(object sender, EventArgs e)
{
// Start print
if (currentPrinterState == printerState.idle && !drawQueue.IsEmpty)
{
currentPrinterState = printerState.printInProgress;
button_startStop.Text = "Stop Print";
richTextBox_debug.Clear();
textBox_Status.Text = "Printing";
// Send start print command to Arduino
if (serialPort1.IsOpen)
{
// Determine resolution of print
if (comboBox_Resolution.Text == "Low")
{
dataByte = 0;
}
else if (comboBox_Resolution.Text == "Medium")
{
dataByte = 1;
}
else if (comboBox_Resolution.Text == "High")
{
dataByte = 2;
}
serialPort1.Write(new byte[] { startByte, startPrintCommand, dataByte }, 0, 3);
}
}
// Stop print.
else if (currentPrinterState == printerState.printInProgress || currentPrinterState == printerState.printPaused)
{
currentPrinterState = printerState.idle;
button_startStop.Text = "Start Print";
button_pauseResume.Text = "Pause Print";
textBox_Status.Text = "Print Stopped";
// Send stop print command to Arduino
if (serialPort1.IsOpen)
{
dataByte = 0;
serialPort1.Write(new byte[2] {
startByte, stopPrintCommand
}, 0, 2);
}
}
// Error : user has not uploaded their image
else if (currentPrinterState == printerState.idle && drawQueue.IsEmpty)
{
textBox_Status.Text = "Please upload your image";
}
}
private void timer1_Tick(object sender, EventArgs e)
{
// Dequeue and print incoming messages from Arduino
byte queueData = 0;
while (cqueue.Count > 0)
{
cqueue.TryDequeue(out queueData);
richTextBox_debug.AppendText(queueData + " ");
// Incoming command from Arduino
if (queueData == 255)
{
cqueue.TryDequeue(out queueData);
// Arduino is ready for the next byte
if (queueData == 6 && currentPrinterState == printerState.printInProgress)
{
currentPrinterState = printerState.sendDrawingBytes;
}
}
}
}
private void timerDraw_Tick(object sender, EventArgs e)
{
// Send tile bytes to the Arduino
if (currentPrinterState == printerState.sendDrawingBytes)
{
drawQueue.TryDequeue(out dataByte);
if (serialPort1.IsOpen)
{
serialPort1.Write(new byte[] { startByte, drawCommand, dataByte }, 0, 3);
}
// Wait until Arduino is ready for the next byte
currentPrinterState = printerState.printInProgress;
// Print is complete
if (drawQueue.IsEmpty)
{
// Send print complete command
serialPort1.Write(new byte[] { startByte, stopPrintCommand }, 0, 2);
currentPrinterState = printerState.idle;
textBox_Status.Text = "Print complete!";
}
}
}
