From 068315bff393c5aaa2742d9c15fdce295e8f508b Mon Sep 17 00:00:00 2001
From: Vesna Tanko <tankovesna@hotmail.com>
Date: Mon, 17 Oct 2022 13:50:19 +0200
Subject: [PATCH] Annotator: Invalidate clusters on setting change

---
 orangecontrib/text/widgets/owannotator.py     |  2 ++
 .../text/widgets/tests/test_owannotator.py    | 19 +++++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/orangecontrib/text/widgets/owannotator.py b/orangecontrib/text/widgets/owannotator.py
index 540919fa8..311820ae7 100644
--- a/orangecontrib/text/widgets/owannotator.py
+++ b/orangecontrib/text/widgets/owannotator.py
@@ -324,6 +324,7 @@ def __on_axis_attr_changed(self):
 
     def __on_clustering_type_changed(self):
         self._enable_clustering_controls()
+        self._invalidate_clusters()
         self._run()
 
     def __on_epsilon_check_changed(self):
@@ -343,6 +344,7 @@ def __on_n_components_changed(self):
         self._run()
 
     def __on_cluster_var_changed(self):
+        self._invalidate_clusters()
         self._run()
 
     def __on_fdr_threshold_changed(self):
diff --git a/orangecontrib/text/widgets/tests/test_owannotator.py b/orangecontrib/text/widgets/tests/test_owannotator.py
index 5491e9318..1d263fa2c 100644
--- a/orangecontrib/text/widgets/tests/test_owannotator.py
+++ b/orangecontrib/text/widgets/tests/test_owannotator.py
@@ -254,6 +254,25 @@ def test_no_disc_var_context(self):
         self.widget.controls.clustering_type.buttons[2].click()
         self.assertIsNotNone(self.widget.cluster_var)
 
+    def test_invalidate(self):
+        self.send_signal(self.widget.Inputs.corpus, self.corpus)
+
+        self.wait_until_finished()
+        self.assertEqual(len(self.widget.clusters.groups), 1)
+
+        self.widget.controls.clustering_type.buttons[1].click()
+        self.wait_until_finished()
+        self.assertEqual(len(self.widget.clusters.groups), 3)
+
+        self.widget.controls.use_n_components.setChecked(True)
+        self.widget.controls.n_components.setValue(4)
+        self.wait_until_finished()
+        self.assertEqual(len(self.widget.clusters.groups), 4)
+
+        self.widget.controls.clustering_type.buttons[2].click()
+        self.wait_until_finished()
+        self.assertEqual(len(self.widget.clusters.groups), 2)
+
 
 if __name__ == "__main__":
     unittest.main()