OWDatasets: fix saving selection & row height

Author: kernc

Orange/widgets/data/owdatasets.py

@@ -122,7 +122,7 @@ class Outputs:
         data = Output("Data", Orange.data.Table)
 
     #: Selected data set id
-    selected_id = settings.Setting(None)   # type: Optional[Tuple[str, str]]
+    selected_id = settings.Setting(None)   # type: Optional[str]
 
     auto_commit = settings.Setting(False)  # type: bool
 
@@ -283,6 +283,7 @@ def info(file_path):
             item1 = QStandardItem()
             item1.setData(" " if datainfo.islocal else "", Qt.DisplayRole)
             item1.setData(datainfo, Qt.UserRole)
+            item1.setData(QSize(26, 26), Qt.SizeHintRole)
             item2 = QStandardItem(datainfo.title)
             item3 = QStandardItem()
             item3.setData(datainfo.size, Qt.DisplayRole)
@@ -307,6 +308,7 @@ def info(file_path):
         model_ = self.view.model().sourceModel()
         self.view.model().setSourceModel(model)
         self.view.header().restoreState(hs)
+        self.view.resizeColumnToContents(1)
         model_.deleteLater()
         model_.setParent(None)
         self.view.selectionModel().selectionChanged.connect(
@@ -318,7 +320,7 @@ def info(file_path):
         if current_index != -1:
             selmodel = self.view.selectionModel()
             selmodel.select(
-                model.index(current_index, 0),
+                self.view.model().mapFromSource(model.index(current_index, 0)),
                 QItemSelectionModel.ClearAndSelect | QItemSelectionModel.Rows)
 
     def __update_cached_state(self):
@@ -366,6 +368,7 @@ def __on_selection(self):
         assert 0 <= len(rows) <= 1
         current = rows[0] if rows else None  # type: Optional[QModelIndex]
         if current is not None:
+            current = self.view.model().mapToSource(current)
             di = current.data(Qt.UserRole)
             text = description_html(di)
             self.descriptionlabel.setText(text)