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# Author: Isaac Saito

from python_qt_binding.QtGui import QWidget


class AbstractStatusWidget(QWidget):
    """
    An abstract widget that consists of status display part and timeline part,
    although this class doen't define any concrete design for those display
    parts. Instead this only defines interface methods.
    """

    def __init__(self):
        super(AbstractStatusWidget, self).__init__()

    def new_diagnostic(self, msg, is_forced=False):
        """
        Needs overridden in derived classes.

        :param msg: This can be a function that takes either
                    { DiagnosticArray, DiagnosticsStatus } as an argument.
        :param is_forced: If True then update occurs even when paused.
        """
        pass

    def pause(self, msg):
        pass

    def unpause(self, msg):
        pass

    def get_color_for_value(self, queue_diagnostic, color_index):
        pass

    def on_pause(self, paused, diagnostic_arr):
        pass
