Signals and slots prepared to update content, received from UDP packet

simulation/VirtualLedBoard/udpserver.cpp

@@ -2,6 +2,7 @@
 #include "settings.h"
 #include <QUdpSocket>
 #include <QNetworkDatagram>
+#include "mainwindow.h"
 
 #define UDP_IMAGE_PORT  4242
 
@@ -9,6 +10,15 @@ UdpLedServer ::UdpLedServer (QObject *parent)
     : QObject(parent)
 {
     initSocket();
+    connect(this,
+            &UdpLedServer::changeLEDstate,
+            (MainWindow*) parent,
+            &MainWindow::setLED);
+    connect(this,
+            &UdpLedServer::updatePanelContent,
+            (MainWindow*) parent,
+            &MainWindow::updatePanel);
+
 }
 
 void UdpLedServer ::initSocket()
@@ -31,6 +41,25 @@ void UdpLedServer ::readPendingDatagrams()
 
 void UdpLedServer::processTheDatagram(QNetworkDatagram datagram) {
     if (datagram.isValid() && datagram.data().length() == PACKET_LENGTH) {
-        qDebug() << "Received datagram:" << datagram.data().size();
+        uint8_t brightness = datagram.data().at(PACKET_INDEX_BRIGHTNESS);
+        int currentIndex = PACKET_INDEX_PANEL0;
+
+        uint16_t mask = 1;
+        for(int x=0; x < (PANEL_WIDTH * MAXIMUM_PANELSIZE); x++) {
+            for(int y=0; y < PANEL_HEIGHT; y++) {
+                if (datagram.data().at(currentIndex) & mask) {
+                    this->changeLEDstate(x, y);
+                }
+                mask = (mask << 1);
+                if (mask >= 256) {
+                    mask = 1;
+                    currentIndex++;
+                }
+            }
+        }
+        this->updatePanelContent();
+
+        qDebug() << "Received datagram:" << brightness;
+
     }
 }