Resize session list on expanding a session directory

qtgui/sessiontreecontroller.py

@@ -172,6 +172,8 @@ class SessionTreeController(object):
         self.treeWidget.currentItemChanged.connect(self._reactSelectionChanged) #click anywhere
         self.treeWidget.itemDoubleClicked.connect(self._reactSignal_itemDoubleClicked)
         self.treeWidget.customContextMenuRequested.connect(self.contextMenu)
+        self.treeWidget.itemExpanded.connect(self._reactSignal_itemExpanded)
+        self.treeWidget.itemCollapsed.connect(self._reactSignal_itemExpanded)
         self.treeWidget.model().layoutAboutToBeChanged.connect(self._reactSignal_rememberSorting)
         #self.treeWidget.model().layoutChanged.connect(self._reactSignal_restoreSorting)
         self.mainWindow.ui.button_new_session.clicked.connect(self._reactSignal_newSession)
@@ -327,6 +329,11 @@ class SessionTreeController(object):
         if not item.isDisabled() and type(item) is SessionItem:
             api.sessionOpen(item.sessionDict["nsmSessionName"])
 
+    def _reactSignal_itemExpanded(self, item:QtWidgets.QTreeWidgetItem):
+        """Also for collapsed!"""
+        for i in range(len(self.headerLabels)):
+            self.treeWidget.resizeColumnToContents(i)
+
     def _reactSignal_openSelected(self):
         item = self.treeWidget.currentItem()
         if item: