Minor compile fixes and cleanups

src/libs/opmapcontrol/src/mapwidget/trailitem.cpp

@@ -38,6 +38,8 @@ namespace mapcontrol
 
     void TrailItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
     {
+        Q_UNUSED(option);
+        Q_UNUSED(widget);
       //  painter->drawRect(QRectF(-3,-3,6,6));
         painter->setBrush(m_brush);
         painter->drawEllipse(-2,-2,4,4);

src/ui/HUD.cc

@@ -75,7 +75,6 @@ inline bool isinf(T value)
  */
 HUD::HUD(int width, int height, QWidget* parent)
     : QGLWidget(QGLFormat(QGL::SampleBuffers), parent),
-      u(NULL),
       uas(NULL),
       yawInt(0.0f),
       mode(tr("UNKNOWN MODE")),
@@ -309,7 +308,6 @@ void HUD::setActiveUAS(UASInterface* uas)
 
         // Set new UAS
         this->uas = uas;
-        this->u = dynamic_cast<UAS*>(this->uas);
     }
 }
 
@@ -1631,5 +1629,9 @@ void HUD::setPixels(int imgid, const unsigned char* imageData, int length, int s
 void HUD::copyImage()
 {
     qDebug() << "HUD::copyImage()";
-    this->glImage = QGLWidget::convertToGLFormat(this->u->getImage());
+    UAS* u = dynamic_cast<UAS*>(this->uas);
+    if (u)
+    {
+        this->glImage = QGLWidget::convertToGLFormat(u->getImage());
+    }
 }

src/ui/HUD.h

@@ -219,7 +219,6 @@ protected:
     QAction* selectVideoChannelAction;
     void paintEvent(QPaintEvent *event);
     bool imageRequested;
-    UAS* u;
 
 };