Restoring old behavior of the outpoint copy to clipboard feature (#5879)

* Restoring old behavior of the outpoint copy to clipboard feature

* Small code style adjustments

electrum/gui/qt/util.py

@@ -480,6 +480,7 @@ class ElectrumItemDelegate(QStyledItemDelegate):
         return super().createEditor(parent, option, idx)
 
 class MyTreeView(QTreeView):
+    ROLE_CLIPBOARD_DATA = Qt.UserRole + 100
 
     def __init__(self, parent: 'ElectrumWindow', create_menu, *,
                  stretch_column=None, editable_columns=None):
@@ -653,9 +654,11 @@ class MyTreeView(QTreeView):
         for column in self.Columns:
             column_title = self.model().horizontalHeaderItem(column).text()
             item_col = self.model().itemFromIndex(idx.sibling(idx.row(), column))
-            column_data = item_col.text().strip()
+            clipboard_data = item_col.data(self.ROLE_CLIPBOARD_DATA)
+            if clipboard_data is None:
+                clipboard_data = item_col.text().strip()
             cc.addAction(column_title,
-                         lambda text=column_data, title=column_title:
+                         lambda text=clipboard_data, title=column_title:
                          self.place_text_on_clipboard(text, title=title))
 
     def place_text_on_clipboard(self, text: str, *, title: str = None) -> None:

electrum/gui/qt/utxo_list.py

@@ -97,6 +97,7 @@ class UTXOList(MyTreeView):
         labels = [name_short, address, label, amount, '%d'%height]
         utxo_item = [QStandardItem(x) for x in labels]
         self.set_editability(utxo_item)
+        utxo_item[self.Columns.OUTPOINT].setData(name, self.ROLE_CLIPBOARD_DATA)
         utxo_item[self.Columns.ADDRESS].setFont(QFont(MONOSPACE_FONT))
         utxo_item[self.Columns.AMOUNT].setFont(QFont(MONOSPACE_FONT))
         utxo_item[self.Columns.OUTPOINT].setFont(QFont(MONOSPACE_FONT))