Merge pull request #4693 from aturanjanin/ownomogram

Nomogram: data info displayed in the status bar

Author: VesnaT

Orange/widgets/visualize/ownomogram.py

@@ -25,6 +25,7 @@
 from Orange.widgets.settings import Setting, ContextSetting, \
     ClassValuesContextHandler
 from Orange.widgets.utils.widgetpreview import WidgetPreview
+from Orange.widgets.utils.state_summary import format_summary_details
 from Orange.widgets.widget import OWWidget, Msg, Input, Output, AttributeList
 from Orange.widgets import gui
 
@@ -640,6 +641,8 @@ def __init__(self):
         self.old_target_class_index = self.target_class_index
         self.repaint = False
 
+        self.info.set_input_summary(self.info.NoInput)
+
         # GUI
         box = gui.vBox(self.controlArea, "Target class")
         self.class_combo = gui.comboBox(
@@ -784,6 +787,9 @@ def update_controls(self):
     @Inputs.data
     def set_data(self, data):
         self.instances = data
+        summary = len(data) if data else self.info.NoInput
+        details = format_summary_details(data) if data else ""
+        self.info.set_input_summary(summary, details)
         self.feature_marker_values = []
         self.set_feature_marker_values()
         self.update_scene()

Orange/widgets/visualize/tests/test_ownomogram.py

@@ -13,6 +13,7 @@
 )
 from Orange.tests import test_filename
 from Orange.widgets.tests.base import WidgetTest
+from Orange.widgets.utils.state_summary import format_summary_details
 from Orange.widgets.visualize.ownomogram import (
     OWNomogram, DiscreteFeatureItem, ContinuousFeatureItem, ProbabilitiesDotItem,
     MovableToolTip
@@ -278,6 +279,20 @@ def mocked_width():
         # most left text at 3. iteration is the same -> stop
         self.assertEqual(mocked_item.call_args_list[15][0][0], "foo3")
 
+    def test_summary(self):
+        """Check if status bar is updated when data is received"""
+        data = self.data
+        info = self.widget.info
+        no_input = "No data on input"
+
+        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.send_signal(self.widget.Inputs.data, None)
+        self.assertEqual(info._StateInfo__input_summary.brief, "")
+        self.assertEqual(info._StateInfo__input_summary.details, no_input)
+
 
 if __name__ == "__main__":
     unittest.main()