Data info displayed in the status bar

Author: aturanjanin

Orange/widgets/data/owpivot.py

@@ -25,6 +25,7 @@
 from Orange.widgets.utils.sql import check_sql_input
 from Orange.widgets.utils.itemmodels import DomainModel
 from Orange.widgets.utils.widgetpreview import WidgetPreview
+from Orange.widgets.utils.state_summary import format_summary_details
 from Orange.widgets.widget import OWWidget, Input, Output, Msg
 
 
@@ -711,6 +712,9 @@ def _add_control_area_controls(self):
         gui.rubber(self.controlArea)
         gui.auto_apply(self.controlArea, self, "auto_commit")
 
+        self.info.set_input_summary(self.info.NoInput)
+        self.info.set_output_summary(self.info.NoOutput)
+
     def __add_aggregation_controls(self):
         box = gui.vBox(self.controlArea, "Aggregations")
         for agg in self.AGGREGATIONS:
@@ -790,6 +794,10 @@ def check_data(self):
         self.clear_messages()
         if not self.data:
             self.table_view.clear()
+            self.info.set_input_summary(self.info.NoInput)
+        else:
+            self.info.set_input_summary(len(self.data),
+                                        format_summary_details(self.data))
 
     def init_attr_values(self):
         domain = self.data.domain if self.data and len(self.data) else None
@@ -821,6 +829,11 @@ def commit(self):
         self.Outputs.pivot_table.send(self.pivot.pivot_table)
         self.Outputs.filtered_data.send(self.get_filtered_data())
 
+        output = self.get_filtered_data()
+        summary = len(output) if output else self.info.NoOutput
+        details = format_summary_details(output) if output else ""
+        self.info.set_output_summary(summary, details)
+
     def _update_graph(self):
         self.table_view.clear()
         if self.pivot.pivot_table:

Orange/widgets/data/tests/test_owpivot.py

@@ -1,7 +1,7 @@
 # Test methods with long descriptive names can omit docstrings
-# pylint: disable=missing-docstring
+# pylint: disable=missing-docstring,unsubscriptable-object
 import unittest
-from unittest.mock import patch
+from unittest.mock import patch, Mock
 from pickle import loads, dumps
 
 import numpy as np
@@ -16,7 +16,7 @@
                                          AggregationFunctionsEnum)
 from Orange.widgets.tests.base import WidgetTest
 from Orange.widgets.tests.utils import simulate
-
+from Orange.widgets.utils.state_summary import format_summary_details
 
 class TestOWPivot(WidgetTest):
     def setUp(self):
@@ -232,6 +232,33 @@ def test_send_report(self):
         self.send_signal(self.widget.Inputs.data, None)
         self.widget.report_button.click()
 
+    def test_summary(self):
+        """Check if the status bar is updated when data is received"""
+        data = self.iris
+        input_sum = self.widget.info.set_input_summary = Mock()
+        output_sum = self.widget.info.set_output_summary = Mock()
+
+        self.send_signal(self.widget.Inputs.data, data)
+        input_sum.assert_called_with(len(data), format_summary_details(data))
+        output = self.get_output(self.widget.Outputs.filtered_data)
+        self.assertIsNone(output)
+        simulate.combobox_activate_item(self.widget.controls.row_feature,
+                                        self.iris.domain.attributes[0].name)
+        simulate.combobox_activate_item(self.widget.controls.col_feature,
+                                        self.iris.domain.class_var.name)
+        self.widget.table_view.set_selection(set([(11, 0), (11, 1), (12, 0)]))
+        self.widget.table_view.selection_changed.emit()
+        output = self.get_output(self.widget.Outputs.filtered_data)
+        output_sum.assert_called_with(len(output),
+                                      format_summary_details(output))
+        input_sum.reset_mock()
+        output_sum.reset_mock()
+        self.send_signal(self.widget.Inputs.data, None)
+        input_sum.assert_called_once()
+        self.assertEqual(input_sum.call_args[0][0].brief, "")
+        output_sum.assert_called_once()
+        self.assertEqual(output_sum.call_args[0][0].brief, "")
+
 
 class TestAggregationFunctionsEnum(unittest.TestCase):
     def test_pickle(self):