--- /dev/null
+package org.simantics.district.network.ui;
+
+import org.simantics.db.Resource;
+import org.simantics.g2d.canvas.ICanvasContext;
+
+public interface DistrictDiagramViewerListener {
+
+ void diagramLoaded(Resource runtimeDiagram, ICanvasContext canvasContext);
+
+ void diagramDisposed(Resource runtimeDiagram, ICanvasContext canvasContext);
+}