From 3aace88c0b92ba2a899f7853b84d00f060071439 Mon Sep 17 00:00:00 2001
From: Ollo <Ollo@host>
Date: Sun, 13 Aug 2023 22:38:07 +0200
Subject: [PATCH] Example UDP server project

---
 .../VirtualLedBoard/VirtualLedBoard.pro       |  7 ++--
 simulation/VirtualLedBoard/udpserver.cpp      | 35 +++++++++++++++++++
 simulation/VirtualLedBoard/udpserver.h        | 22 ++++++++++++
 3 files changed, 62 insertions(+), 2 deletions(-)
 create mode 100644 simulation/VirtualLedBoard/udpserver.cpp
 create mode 100644 simulation/VirtualLedBoard/udpserver.h

diff --git a/simulation/VirtualLedBoard/VirtualLedBoard.pro b/simulation/VirtualLedBoard/VirtualLedBoard.pro
index e403327..4ba635f 100644
--- a/simulation/VirtualLedBoard/VirtualLedBoard.pro
+++ b/simulation/VirtualLedBoard/VirtualLedBoard.pro
@@ -1,4 +1,5 @@
 QT       += core gui
+QT       += network
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 
@@ -10,10 +11,12 @@ CONFIG += c++11
 
 SOURCES += \
     main.cpp \
-    mainwindow.cpp
+    mainwindow.cpp \
+    udpserver.cpp
 
 HEADERS += \
-    mainwindow.h
+    mainwindow.h \
+    udpserver.h
 
 FORMS += \
     mainwindow.ui
diff --git a/simulation/VirtualLedBoard/udpserver.cpp b/simulation/VirtualLedBoard/udpserver.cpp
new file mode 100644
index 0000000..b884803
--- /dev/null
+++ b/simulation/VirtualLedBoard/udpserver.cpp
@@ -0,0 +1,35 @@
+#include "udpserver.h"
+#include <QUdpSocket>
+#include <QNetworkDatagram>
+
+#define UDP_IMAGE_PORT  4242
+
+UdpServer::UdpServer(QObject *parent)
+    : QAbstractItemModel(parent)
+{
+    initSocket();
+}
+
+void UdpServer::initSocket()
+{
+    this->mUdpSocket = new QUdpSocket(this);
+    this->mUdpSocket->bind(QHostAddress::LocalHost, UDP_IMAGE_PORT);
+
+    connect(this->mUdpSocket, &QUdpSocket::readyRead,
+            this, &UdpServer::readPendingDatagrams);
+}
+
+
+void UdpServer::readPendingDatagrams()
+{
+    while (this->mUdpSocket->hasPendingDatagrams()) {
+        QNetworkDatagram datagram = this->mUdpSocket->receiveDatagram();
+        processTheDatagram(datagram);
+    }
+}
+
+void UdpServer::processTheDatagram(QNetworkDatagram datagram) {
+    if (datagram.isValid()) {
+        qDebug() << "Received datagram:" << datagram.data().size();
+    }
+}
diff --git a/simulation/VirtualLedBoard/udpserver.h b/simulation/VirtualLedBoard/udpserver.h
new file mode 100644
index 0000000..8c91894
--- /dev/null
+++ b/simulation/VirtualLedBoard/udpserver.h
@@ -0,0 +1,22 @@
+#ifndef UDPSERVER_H
+#define UDPSERVER_H
+
+#include <QAbstractItemModel>
+#include <QUdpSocket>
+
+class UdpServer : public QAbstractItemModel
+{
+    Q_OBJECT
+
+public:
+    explicit UdpServer(QObject *parent = nullptr);
+
+
+private:
+    void initSocket();
+    void readPendingDatagrams();
+    QUdpSocket *mUdpSocket;
+    void processTheDatagram(QNetworkDatagram datagram);
+};
+
+#endif // UDPSERVER_H