replace combined stateUpdated signal with individual events

src/ui/SelectedBuildingPanel.cpp

@@ -13,6 +13,7 @@
 #include <QVBoxLayout>
 
 #include "BeltSystem.h"
+#include "TickAdvancedEvent.h"
 #include "Building.h"
 #include "BuildingSystem.h"
 #include "BuildingType.h"
@@ -136,6 +137,13 @@ SelectedBuildingPanel::SelectedBuildingPanel(Simulation* sim,
             this, &SelectedBuildingPanel::onSplitterFilterChanged);
 
     buildEmpty();
+
+    registerForEvent();
+}
+
+SelectedBuildingPanel::~SelectedBuildingPanel()
+{
+    unregisterForEvent();
 }
 
 void SelectedBuildingPanel::onSelectionChanged(const std::vector<BuildingId>& ids)
@@ -488,7 +496,7 @@ const ShipDef* SelectedBuildingPanel::findShipDef(const std::string& id) const
     return nullptr;
 }
 
-void SelectedBuildingPanel::onStateUpdated(Tick /*tick*/, int /*blocks*/, double /*speed*/)
+void SelectedBuildingPanel::handleEvent(std::shared_ptr<const TickAdvancedEvent> /*event*/)
 {
     if (m_singleBuildingId == kInvalidBuildingId) { return; }
     const Building* b = m_sim->buildings().findBuilding(m_singleBuildingId);