Add menu even to networks

birdvisu/graphics_items.py

@@ -151,6 +151,21 @@ class NetworkGraphicsItem(QGraphicsItem):
 			self.window.graphicsitems[edge].update_line()
 		super().mouseMoveEvent(evt)
 
+	def contextMenuEvent(self, evt):
+		menu = QMenu(self.window)
+		tree_act = QAction('Show routing tree', self.window)
+		menu.addAction(tree_act)
+		path_act = object()
+		if self.window.mode == self.window.Mode.ShortestPathDAG:
+			path_act = QAction('Show path to here', self.window)
+			menu.addAction(path_act)
+
+		action = menu.exec(evt.screenPos())
+		if action == tree_act:
+			self.window.dagMode(self.vertex_id)
+		if action == path_act:
+			self.window.shortestPathMode(self.vertex_id)
+
 	# Admit we are basically only a wrapper of the icon.
 	def boundingRect(self):
 		return self.icon.boundingRect()