couple of fixes in mainwindow.cpp

groundStation/gui/MicroCART/mainwindow.cpp

@@ -51,7 +51,7 @@ MainWindow::MainWindow(QWidget *parent) :
             this, SLOT (updateTracker(float, float, float, float, float, float)));
 
     connect(trackerWorker, SIGNAL (finished(float, float, float, float, float, float)),
-            this, SLOT (quad->updateQuad(float, float, float, float, float, float)));
+            quad, SLOT (quad->updateQuad(float, float, float, float, float, float)));
 
     /* Create another worker for the control graph */
     QThread * cwThread = new QThread(this);
@@ -144,7 +144,7 @@ void MainWindow::updateTracker(float x, float y, float z, float p, float r, floa
 void MainWindow::on_pbStart_clicked()
 {
     QProcessEnvironment::systemEnvironment().insert("UCART_SOCKET", ui->socketPath->text());
-    this->backendPid = startBackend(ui->backendPath->text().toStdString().c_str(), &backendPipe);
+    this->backendPid = startBackend(ui->backendPath_2->text().toStdString().c_str(), &backendPipe);
     ui->pbStart->setEnabled(false);
     ui->pbStop->setEnabled(true);
     backendState = 1;
@@ -178,7 +178,7 @@ void MainWindow::on_chooseBackend_clicked()
 {
     QString backendPath = QFileDialog::getOpenFileName(this,
          tr("Path to Backend Executable"));
-    ui->backendPath->setText(backendPath);
+    ui->backendPath_2->setText(backendPath);
 }
 
 

groundStation/gui/MicroCART/quaditem.h

@@ -9,8 +9,9 @@
 #include <QtGui>
 #include <QTransform>
 
-class QuadItem : public QGraphicsItem
+class QuadItem : public QObject, public QGraphicsItem
 {
+    Q_OBJECT
 public:
    QuadItem();
    QRectF boundingRect() const;