def on_edit_annotation_item_requested(self, item: QGraphicsItem):
# Edit text item
if isinstance(item, TextItem):
def edit_text_item(result):
if result == QDialog.Accepted:
old_text = item.text()
old_font = item.font()
text, font_size = self._dialog.getValues()
font = QFont()
font.setPointSize(font_size)
item.setText(text)
item.setFont(font)
self._undo_stack.push(
EditTextCommand(item, old_text, old_font.pointSize(),
self.scene()))
self._dialog = TextItemInputDialog(self)
self._dialog.setValues(item.text(), item.font().pointSize())
self._dialog.finished.connect(edit_text_item)
self._dialog.open()
