messages.py

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import roslib
roslib.load_manifest('rqt_msg')

from qt_gui.plugin import Plugin
from .messages_widget import MessagesWidget


class Messages(Plugin):
    def __init__(self, context):
        super(Messages, self).__init__(context)
        self.setObjectName('Messages')
        self._widget = MessagesWidget()
        if context.serial_number() > 1:
            self._widget.setWindowTitle(self._widget.windowTitle() + (' (%d)' % context.serial_number()))
        context.add_widget(self._widget)

    def shutdown_plugin(self):
        self._widget.cleanup_browsers_on_close()

    def save_settings(self, plugin_settings, instance_settings):
        # instance_settings.set_value(k, v)
        pass

    def restore_settings(self, plugin_settings, instance_settings):
        # v = instance_settings.value(k)
        pass