[ENH] BoxPlot: data info displayed in the status bar

Orange/widgets/visualize/owboxplot.py

@@ -24,6 +24,7 @@
 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 Input, Output
 
 
@@ -277,6 +278,9 @@ def __init__(self):
         self.stat_test = ""
         self.mainArea.setMinimumWidth(300)
 
+        self.info.set_input_summary(self.info.NoInput)
+        self.info.set_output_summary(self.info.NoOutput)
+
         self.stats = self.dist = self.conts = []
         self.is_continuous = False
 
@@ -313,6 +317,7 @@ def reset_groups(self):
     # noinspection PyTypeChecker
     @Inputs.data
     def set_data(self, dataset):
+        self._set_input_summary(dataset)
         if dataset is not None and (
                 not bool(dataset) or not len(dataset.domain) and not
                 any(var.is_primitive() for var in dataset.domain.metas)):
@@ -333,6 +338,11 @@ def set_data(self, dataset):
             self.reset_all_data()
         self.commit()
 
+    def _set_input_summary(self, dataset):
+        summary = len(dataset) if dataset else self.info.NoInput
+        details = format_summary_details(dataset) if dataset else ""
+        self.info.set_input_summary(summary, details)
+
     def select_default_variables(self):
         # visualize first non-class variable, group by class (if present)
         domain = self.dataset.domain
@@ -1109,6 +1119,10 @@ def commit(self):
             selected = Values(self.conditions, conjunction=False)(self.dataset)
             selection = np.in1d(
                 self.dataset.ids, selected.ids, assume_unique=True).nonzero()[0]
+
+        summary = len(selected) if selected else self.info.NoOutput
+        details = format_summary_details(selected) if selected else ""
+        self.info.set_output_summary(summary, details)
         self.Outputs.selected_data.send(selected)
         self.Outputs.annotated_data.send(
             create_annotated_table(self.dataset, selection))

Orange/widgets/visualize/tests/test_owboxplot.py

@@ -1,5 +1,5 @@
 # Test methods with long descriptive names can omit docstrings
-# pylint: disable=missing-docstring
+# pylint: disable=missing-docstring, protected-access
 import unittest
 from unittest.mock import patch
 
@@ -12,6 +12,7 @@
     OWBoxPlot, FilterGraphicsRectItem, _quantiles
 )
 from Orange.widgets.tests.base import WidgetTest, WidgetOutputsTestMixin
+from Orange.widgets.utils.state_summary import format_summary_details
 from Orange.tests import test_filename
 
 
@@ -334,6 +335,30 @@ def test_value_all_missing_for_group(self):
         self.__select_group("a")
         self.assertTupleEqual(self.widget.conts.shape, (3, 2))
 
+    def test_summary(self):
+        """Check if status bar is updated when data is received"""
+        data, info = self.titanic, self.widget.info
+        no_input, no_output = "No data on input", "No data on output"
+
+        self.send_signal(self.widget.Inputs.data, data)
+        summary, details = f"{len(data)}", format_summary_details(data)
+        self.assertEqual(info._StateInfo__input_summary.brief, summary)
+        self.assertEqual(info._StateInfo__input_summary.details, details)
+        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.data, None)
+        self.assertEqual(info._StateInfo__input_summary.brief, "")
+        self.assertEqual(info._StateInfo__input_summary.details, no_input)
+        self.assertEqual(info._StateInfo__output_summary.brief, "")
+        self.assertEqual(info._StateInfo__output_summary.details, no_output)
+
 
 class TestUtils(unittest.TestCase):
     def test(self):