Fix bug with Draw and Erase buttons.

spacetelescope · Oct 24, 2018 · c6aa359 · c6aa359
1 parent 7ac95e5
commit c6aa359
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Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/specviz/widgets/line_labels_plotter.py b/specviz/widgets/line_labels_plotter.py
@@ -110,6 +110,9 @@ def plot_linelists(self, table_views, panes, units, caller, **kwargs):
 
             linelists_with_selections.append(new_list)
 
+        if len(linelists_with_selections) == 0:
+            return
+
         # Merge all line lists into a single one.
         merged_linelist = LineList.merge(linelists_with_selections, units)
 

diff --git a/specviz/widgets/linelists_window.py b/specviz/widgets/linelists_window.py
@@ -555,7 +555,6 @@ def displayPlottedLines(self, linelist):
     def erasePlottedLines(self):
         index_last = self.tabWidget.count() - 1
         self.tabWidget.removeTab(index_last)
-        self.tabWidget.addTab(QWidget(), PLOTTED)
 
     # computes total of rows selected in all table views in all panes
     # and displays result in GUI.