status_snapshot.py

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# Author: Isaac Saito, Ze'ev Klapow, Austin Hendrix
#
# TODO(ahendrix):
#   better formatting of key-value pairs in a table

from python_qt_binding.QtGui import QTextEdit
from python_qt_binding.QtCore import Signal

from diagnostic_msgs.msg import DiagnosticStatus
from util_robot_monitor import level_to_text

class StatusSnapshot(QTextEdit):
    """Display a single static status message. Helps facilitate copy/paste"""
    write_status = Signal(DiagnosticStatus)

    def __init__(self, status=None, parent=None):
        super(StatusSnapshot, self).__init__()

        self.write_status.connect(self._write_status)
        if status is not None:
            self.write_status.emit(status)

            self.resize(300, 400)
            self.show()

    def _write_status(self, status):
        self.clear()
        self._write("Full Name", status.name)
        self._write("Component", status.name.split('/')[-1])
        self._write("Hardware ID", status.hardware_id)
        self._write("Level", level_to_text(status.level))
        self._write("Message", status.message)
        self.insertPlainText('\n')

        for value in status.values:
            self._write(value.key, value.value)

    def _write(self, k, v):
        # TODO(ahendrix): write these as a table rather than as text
        self.setFontWeight(75)
        self.insertPlainText(str(k))
        # TODO(ahendrix): de-dupe trailing ':' here
        self.insertPlainText(': ')

        self.setFontWeight(50)
        self.insertPlainText(str(v))
        self.insertPlainText('\n')