def __init__(self, parent=None):
super(ParameterBaloon, self).__init__(parent, Qt.ToolTip)
layout = QGridLayout(self)
layout.setSizeConstraint(QGridLayout.SetFixedSize)
self._title = QLabel(self)
layout.addWidget(self._title, 0, 0)
line = QLabel(self)
line.setFrameStyle(QLabel.Plain | QLabel.HLine)
layout.addWidget(line, 1, 0)
self._message = QLabel(self)
layout.addWidget(self._message, 2, 0)
self.setContentsMargins(5, 5, 5, 20)
