rm unused

GUI/View/Projection/ProjectionsPlot.cpp

@@ -24,12 +24,9 @@
 #include "GUI/Support/Util/QCP_Util.h"
 #include "GUI/Support/Util/Style.h"
 #include "GUI/View/PlotScale/RangeUtil.h"
-#include <boost/polymorphic_cast.hpp>
 #include <qcustomplot.h>
 #include <utility>
 
-using boost::polymorphic_downcast;
-
 ProjectionsPlot::ProjectionsPlot(GUI::ID::ProjectionType projectionType, QWidget* parent)
     : QWidget(parent)
     , m_projectionType(projectionType)
@@ -187,11 +184,14 @@ void ProjectionsPlot::updateProjectionsData()
 
 void ProjectionsPlot::updateProjections()
 {
-    auto projn_items = data2DItem()->projectionContainerItem()->projectionsOfType(m_projectionType);
-    for (auto* projItem : projn_items) {
+    ASSERT(data2DItem());
+    auto container_item = data2DItem()->projectionContainerItem();
+    if (!container_item)
+	return;
+    auto projn_items = container_item->projectionsOfType(m_projectionType);
+    for (auto* projItem : projn_items)
         if (isCorrectProjectionType(projItem))
             setGraphFromItem(graphForItem(projItem), projItem);
-    }
     replot();
 }
 
@@ -199,10 +199,9 @@ void ProjectionsPlot::onProjectionPropertyChanged(MaskRoot* item)
 {
     auto* projection = dynamic_cast<MaskItem*>(item);
     ASSERT(projection);
-    if (isCorrectProjectionType(projection)) {
+    if (isCorrectProjectionType(projection))
         if (auto* graph = graphForItem(projection))
             setGraphFromItem(graph, projection);
-    }
     replot();
 }