Clicking on a prefab will make it the current selection for painting

include/ui/graphicsview.h

@@ -4,6 +4,23 @@
 #include <QGraphicsView>
 #include <QMouseEvent>
 
+class ClickableGraphicsView : public QGraphicsView
+{
+    Q_OBJECT
+public:
+    ClickableGraphicsView() : QGraphicsView() {}
+    ClickableGraphicsView(QWidget *parent) : QGraphicsView(parent) {}
+
+public:
+    void mousePressEvent(QMouseEvent *event) {
+        QGraphicsView::mousePressEvent(event);
+        emit this->clicked();
+    }
+
+signals:
+    void clicked();
+};
+
 class Editor;
 
 class GraphicsView : public QGraphicsView

include/ui/metatileselector.h

@@ -46,6 +46,7 @@ public:
     bool selectFromMap(uint16_t metatileId, uint16_t collision, uint16_t elevation);
     void setTilesets(Tileset*, Tileset*);
     MetatileSelection getMetatileSelection();
+    void setDirectSelection(MetatileSelection selection);
     void setExternalSelection(int, int, QList<uint16_t>, QList<QPair<uint16_t, uint16_t>>);
     QPoint getMetatileIdCoordsOnWidget(uint16_t);
     void setMap(Map*);

include/ui/prefab.h

@@ -18,7 +18,7 @@ struct PrefabItem
 class Prefab
 {
 public:
-    void initPrefabUI(QWidget *prefabWidget, QLabel *emptyPrefabLabel, QString primaryTileset, QString secondaryTileset, Map *map);
+    void initPrefabUI(MetatileSelector *selector, QWidget *prefabWidget, QLabel *emptyPrefabLabel, QString primaryTileset, QString secondaryTileset, Map *map);
 
 private:
     QList<PrefabItem> items;