Packets are shown on screen

simulation/VirtualLedBoard/mainwindow.cpp

@@ -11,15 +11,8 @@ MainWindow::MainWindow(QWidget *parent)
     , ui(new Ui::MainWindow)
 {
     ui->setupUi(this);
-    this->server = new UdpLedServer ();
-
     this->mOffscreenPanel = new QImage(DEFAULT_WIDTH + LED_DISTANCE, DEFAULT_HEIGHT + LED_DISTANCE, QImage::Format_RGB32);
-    for(int x=0; x < (PANEL_WIDTH * MAXIMUM_PANELSIZE); x++) {
-        for(int y=0; y < PANEL_HEIGHT; y++) {
-            setLED(x, y);
-        }
-    }
-    updatePanel();
+    this->server = new UdpLedServer (NULL, this);
 }
 
 MainWindow::~MainWindow()

simulation/VirtualLedBoard/mainwindow.h

@@ -14,6 +14,9 @@ QT_BEGIN_NAMESPACE
 namespace Ui { class MainWindow; }
 QT_END_NAMESPACE
 
+/* dummy */
+class UdpLedServer;
+
 class MainWindow : public QMainWindow
 {
     Q_OBJECT

simulation/VirtualLedBoard/udpserver.cpp

@@ -6,19 +6,27 @@
 
 #define UDP_IMAGE_PORT  4242
 
-UdpLedServer ::UdpLedServer (QObject *parent)
+UdpLedServer::UdpLedServer (QObject *parent, MainWindow *window)
     : QObject(parent)
 {
     initSocket();
     connect(this,
             &UdpLedServer::changeLEDstate,
-            (MainWindow*) parent,
+            window,
             &MainWindow::setLED);
     connect(this,
             &UdpLedServer::updatePanelContent,
-            (MainWindow*) parent,
+            window,
             &MainWindow::updatePanel);
 
+
+    for(int x=0; x < (PANEL_WIDTH * MAXIMUM_PANELSIZE); x++) {
+        for(int y=0; y < PANEL_HEIGHT; y++) {
+            changeLEDstate(x, y);
+        }
+    }
+    updatePanelContent();
+
 }
 
 void UdpLedServer ::initSocket()
@@ -49,6 +57,7 @@ void UdpLedServer::processTheDatagram(QNetworkDatagram datagram) {
             for(int y=0; y < PANEL_HEIGHT; y++) {
                 if (datagram.data().at(currentIndex) & mask) {
                     this->changeLEDstate(x, y);
+                    qDebug() << x << "x" << y << " set";
                 }
                 mask = (mask << 1);
                 if (mask >= 256) {

simulation/VirtualLedBoard/udpserver.h

@@ -3,13 +3,17 @@
 
 #include <QAbstractItemModel>
 #include <QUdpSocket>
+#include "mainwindow.h"
+
+class MainWindow;
 
 class UdpLedServer : public QObject
 {
     Q_OBJECT
 
 public:
-    explicit UdpLedServer (QObject *parent = nullptr);
+    /*UdpLedServer (QObject *parent = nullptr); */
+    UdpLedServer (QObject *parent = nullptr, MainWindow *window = nullptr);
 
 private:
     void initSocket();