OWSelectByDataIndex: data info displayed in the status bar

Orange/widgets/data/owselectbydataindex.py

@@ -1,10 +1,14 @@
 import numpy as np
 
+from AnyQt.QtCore import Qt
+
 from Orange.data import Table
 from Orange.widgets import widget, gui
 from Orange.widgets.utils import itemmodels
 from Orange.widgets.utils.sql import check_sql_input
 from Orange.widgets.utils.widgetpreview import WidgetPreview
+from Orange.widgets.utils.state_summary import format_summary_details, \
+    format_multiple_summaries
 from Orange.widgets.widget import Input, Output
 from Orange.widgets.utils.annotated_data import (create_annotated_table)
 
@@ -49,6 +53,9 @@ def __init__(self):
         self.infoBoxExtraData = gui.label(
             box, self, self.data_info_text(None), box="Data Subset")
 
+        self.info.set_input_summary(self.info.NoInput)
+        self.info.set_output_summary(self.info.NoOutput)
+
     @Inputs.data
     @check_sql_input
     def set_data(self, data):
@@ -62,6 +69,19 @@ def set_data_subset(self, data):
         self.infoBoxExtraData.setText(self.data_info_text(data))
 
     def handleNewSignals(self):
+        summary, details, kwargs = self.info.NoInput, "", {}
+        if self.data or self.data_subset:
+            n_data = len(self.data) if self.data else 0
+            n_data_subset = len(self.data_subset) if self.data_subset else 0
+            summary = f"{self.info.format_number(n_data)}, " \
+                      f"{self.info.format_number(n_data_subset)}"
+            kwargs = {"format": Qt.RichText}
+            details = format_multiple_summaries([
+                ("Data", self.data),
+                ("Data subset", self.data_subset)
+            ])
+        self.info.set_input_summary(summary, details, **kwargs)
+
         self._invalidate()
 
     @staticmethod
@@ -89,6 +109,10 @@ def commit(self):
             matching_output = self.data[row_sel]
             non_matching_output = self.data[~row_sel]
             annotated_output = create_annotated_table(self.data, row_sel)
+
+        summary = self.info.NoOutput if matching_output is None else len(matching_output)
+        details = "" if matching_output is None else format_summary_details(matching_output)
+        self.info.set_output_summary(summary, details)
         self.Outputs.matching_data.send(matching_output)
         self.Outputs.non_matching_data.send(non_matching_output)
         self.Outputs.annotated_data.send(annotated_output)

Orange/widgets/data/tests/test_owselectbydataindex.py

@@ -1,7 +1,10 @@
+# pylint: disable=protected-access
 from Orange.data import Table, Domain
 from Orange.widgets.data.owselectbydataindex import OWSelectByDataIndex
 from Orange.widgets.tests.base import WidgetTest
 from Orange.widgets.utils.annotated_data import ANNOTATED_DATA_FEATURE_NAME
+from Orange.widgets.utils.state_summary import format_summary_details, \
+    format_multiple_summaries
 
 
 class TestOWSelectSubset(WidgetTest):
@@ -43,3 +46,46 @@ def test_subset_nosubset(self):
         self.assertTrue(self.widget.Warning.instances_not_matching.is_shown())
         self.assertEqual([], list(matching))
         self.assertEqual(list(data), list(non_matching))
+
+    def test_summary(self):
+        """Check if the status bar is updated when data is received"""
+        data = Table("iris")
+        info = self.widget.info
+        NoInput, NoOutput = "No data on input", "No data on output"
+        self.assertEqual(info._StateInfo__input_summary.brief, "")
+        self.assertEqual(info._StateInfo__input_summary.details, NoInput)
+        self.assertEqual(info._StateInfo__output_summary.brief, "")
+        self.assertEqual(info._StateInfo__output_summary.details, NoOutput)
+
+        self.send_signal(self.widget.Inputs.data, data)
+        data_list = [("Data", data), ("Data subset", None)]
+        summary, details = f"{len(data)}, 0", format_multiple_summaries(data_list)
+        self.assertEqual(info._StateInfo__input_summary.brief, summary)
+        self.assertEqual(info._StateInfo__input_summary.details, details)
+        self.assertEqual(info._StateInfo__output_summary.brief, "0")
+
+        self.send_signal(self.widget.Inputs.data_subset, data)
+        data_list = [("Data", data), ("Data subset", data)]
+        summary = f"{len(data)}, {len(data)}"
+        details = format_multiple_summaries(data_list)
+        self.assertEqual(info._StateInfo__input_summary.brief, summary)
+        self.assertEqual(info._StateInfo__input_summary.details, details)
+        output = self.get_output(self.widget.Outputs.matching_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)
+        data_list = [("Data", None), ("Data subset", data)]
+        summary, details = f"0, {len(data)}", format_multiple_summaries(
+            data_list)
+        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, NoOutput)
+
+        self.send_signal(self.widget.Inputs.data_subset, None)
+        self.assertEqual(info._StateInfo__input_summary.brief, "")
+        self.assertEqual(info._StateInfo__input_summary.details, NoInput)
+        self.assertEqual(info._StateInfo__output_summary.brief, "")
+        self.assertEqual(info._StateInfo__output_summary.details, NoOutput)