Merge pull request #4746 from aturanjanin/owconfusionmatrix

ConfusionMatrix: data info displayed in the status bar

Author: VesnaT

Orange/widgets/evaluate/owconfusionmatrix.py

@@ -18,6 +18,7 @@
 from Orange.widgets.utils.annotated_data import (create_annotated_table,
                                                  ANNOTATED_DATA_SIGNAL_NAME)
 from Orange.widgets.utils.widgetpreview import WidgetPreview
+from Orange.widgets.utils.state_summary import format_summary_details
 from Orange.widgets.widget import Msg, Input, Output
 
 
@@ -143,6 +144,8 @@ def __init__(self):
 
         gui.auto_apply(self.outputbox, self, "autocommit", box=False)
 
+        self.info.set_output_summary(self.info.NoOutput)
+
         self.mainArea.layout().setContentsMargins(0, 0, 0, 0)
 
         box = gui.vBox(self.mainArea, box=True)
@@ -412,6 +415,10 @@ def commit(self):
             data = None
             annotated_data = None
 
+        summary = len(data) if data else self.info.NoOutput
+        details = format_summary_details(data) if data else ""
+        self.info.set_output_summary(summary, details)
+
         self.Outputs.selected_data.send(data)
         self.Outputs.annotated_data.send(annotated_data)
 

Orange/widgets/evaluate/tests/test_owconfusionmatrix.py

@@ -1,4 +1,4 @@
-# pylint: disable=missing-docstring
+# pylint: disable=missing-docstring, protected-access
 import numpy as np
 
 from Orange.data import Table
@@ -8,6 +8,7 @@
     ShuffleSplit, Results
 from Orange.widgets.evaluate.owconfusionmatrix import OWConfusionMatrix
 from Orange.widgets.tests.base import WidgetTest, WidgetOutputsTestMixin
+from Orange.widgets.utils.state_summary import format_summary_details
 
 
 class TestOWConfusionMatrix(WidgetTest, WidgetOutputsTestMixin):
@@ -117,3 +118,20 @@ def test_not_append_extra_meta_columns(self):
         """
         self.widget.append_predictions = False
         self.send_signal(self.widget.Inputs.evaluation_results, self.results_1_iris)
+
+    def test_summary(self):
+        """Check if the status bar updates"""
+        info = self.widget.info
+        no_output = "No data on output"
+
+        self.send_signal(self.widget.Inputs.evaluation_results, self.results_1_iris)
+        self.assertEqual(info._StateInfo__output_summary.brief, "")
+        self.assertEqual(info._StateInfo__output_summary.details, no_output)
+        self._select_data()
+        output = self.get_output(self.widget.Outputs.selected_data)
+        summary, details = f"{len(output)}", format_summary_details(output)
+        self.assertEqual(info._StateInfo__output_summary.brief, summary)
+        self.assertEqual(info._StateInfo__output_summary.details, details)
+        self.send_signal(self.widget.Inputs.evaluation_results, None)
+        self.assertEqual(info._StateInfo__output_summary.brief, "")
+        self.assertEqual(info._StateInfo__output_summary.details, no_output)