switch to using own event system

src/ui/SelectedBuildingPanel.h

@@ -15,6 +15,7 @@
 #include "EventHandler.h"
 #include "GameConfig.h"
 #include "RecipesConfig.h"
+#include "SelectionChangedEvent.h"
 #include "ShipLayout.h"
 #include "ShipsConfig.h"
 #include "Tick.h"
@@ -30,7 +31,9 @@ class QPushButton;
 class QVBoxLayout;
 
 class SelectedBuildingPanel : public QWidget,
-                               public CombinedEventHandler<TickAdvancedEvent, EntitySelectedEvent>
+                               public CombinedEventHandler<TickAdvancedEvent,
+                                                           EntitySelectedEvent,
+                                                           SelectionChangedEvent>
 {
     Q_OBJECT
 
@@ -39,15 +42,10 @@ public:
                           QWidget* parent = nullptr);
     ~SelectedBuildingPanel() override;
 
-signals:
-    void layoutDialogRequested(BuildingId shipyardId);
-
-public slots:
-    void onSelectionChanged(const std::vector<BuildingId>& ids);
-
 private:
     void handleEvent(std::shared_ptr<const TickAdvancedEvent> event) override;
     void handleEvent(std::shared_ptr<const EntitySelectedEvent> event) override;
+    void handleEvent(std::shared_ptr<const SelectionChangedEvent> event) override;
 
 private slots:
     void onRecipeChanged(int comboIndex);
@@ -55,6 +53,7 @@ private slots:
     void onSplitterFilterChanged();
 
 private:
+    void onSelectionChanged(const std::vector<BuildingId>& ids);
     void rebuild();
     void clearContent();
     void buildEmpty();