1 files changed, 74 insertions, 0 deletions
diff --git a/printerclient.cpp b/printerclient.cpp
new file mode 100644
index 0000000..c5bf189
--- /dev/null
+++ b/printerclient.cpp
@@ -0,0 +1,74 @@
+#include "printerclient.h"
+
+#include <exception>
+
+#include <QDebug>
+#include <QFile>
+#include <QSerialPort>
+
+PrinterClient::PrinterClient(QObject *parent)
+    : QObject { parent }
+    , m_serialPort { new QSerialPort { "/dev/ttyUSB0", this } }
+{
+    if (!m_serialPort->setBaudRate(QSerialPort::Baud115200)) {
+        throw std::runtime_error(
+            "serial port: cannot set baud rate: " +
+            m_serialPort->errorString().toStdString());
+
+        return;
+    }
+
+    if (!m_serialPort->open(QFile::ReadWrite)) {
+        throw std::runtime_error(
+            "cannot open serial port: " +
+            m_serialPort->errorString().toStdString());
+
+        return;
+    }
+
+    qDebug() << "serial port baud rate:" << m_serialPort->baudRate();
+
+    qDebug() << "serial port data bits:" << m_serialPort->dataBits();
+    qDebug() << "serial port parity:" << m_serialPort->parity();
+    qDebug() << "serial port stop bits:" << m_serialPort->stopBits();
+
+    QObject::connect(m_serialPort, &QSerialPort::readyRead,
+                     this, &PrinterClient::onReadyRead);
+
+    QObject::connect(m_serialPort, &QSerialPort::errorOccurred,
+                     this, &PrinterClient::onErrorOccured);
+
+    // m_serialPort->write(QByteArray { "G91\n" });
+    // m_serialPort->flush();
+    // m_serialPort->write(QByteArray { "G1 Z10\n" });
+    // m_serialPort->flush();
+    sendCommand("G91");
+    // sendCommand("G1 Z10");
+    // sendCommand("G1 Z-10");
+
+    onErrorOccured(QSerialPort::SerialPortError::PermissionError);
+}
+
+void PrinterClient::sendCommand(const QString command)
+{
+    const auto written = m_serialPort->write(command.toUtf8() + "\n");
+
+    qDebug() << QString("serialPort: send '%1': (written %2 bytes)")
+                    .arg(command).arg(written);
+
+    m_serialPort->flush();
+}
+
+void PrinterClient::onReadyRead()
+{
+    const auto data = m_serialPort->readAll();
+    qDebug() << "serialPort: " << data;
+
+    emit newData(data);
+}
+
+void PrinterClient::onErrorOccured(QSerialPort::SerialPortError error)
+{
+    qWarning() << "serial port error:" << m_serialPort->errorString()
+               << "-" << error;
+}