def __init__(self, color, parent=None):
QHBoxLayout.__init__(self)
assert isinstance(color, QColor)
self.lineedit = QLineEdit(color.name(), parent)
self.lineedit.textChanged.connect(self.update_color)
self.addWidget(self.lineedit)
self.colorbtn = ColorButton(parent)
self.colorbtn.color = color
self.colorbtn.colorChanged.connect(self.update_text)
self.addWidget(self.colorbtn)
