import sys
import logging
from PyQt5 import QtCore, QtGui, QtQuick
class Model(QtCore.QAbstractListModel):
def __init__(self, parent=None):
super(Model, self).__init__(parent)
self.items = []
self.roles = {
257: "threadName",
258: "name",
259: "thread",
260: "created",
261: "process",
262: "processName",
263: "args",
264: "module",
265: "filename",
266: "levelno",
267: "exc_text",
268: "pathname",
269: "lineno",
270: "msg",
271: "exc_info",
272: "funcName",
273: "relativeCreated",
274: "levelname",
275: "msecs",
}
def addItem(self, item):
self.beginInsertRows(QtCore.QModelIndex(),
self.rowCount(),
self.rowCount())
self.items.append(item.__dict__)
self.endInsertRows()
def rowCount(self, parent=QtCore.QModelIndex()):
return len(self.items)
def data(self, index, role=QtCore.Qt.DisplayRole):
try:
item = self.items[index.row()]
except IndexError:
return QtCore.QVariant()
if role in self.roles:
return item.get(self.roles[role], QtCore.QVariant())
return QtCore.QVariant()
def roleNames(self):
return self.roles
class MessageHandler(logging.Handler):
def __init__(self, model, *args, **kwargs):
logging.Handler.__init__(self, *args, **kwargs)
self.model = model
def emit(self, record):
self.model.addItem(record)
app = QtGui.QGuiApplication(sys.argv)
view = QtQuick.QQuickView()
model = Model()
proxy = QtCore.QSortFilterProxyModel()
proxy.setSourceModel(model)
proxy.setFilterRole(model.roles.keys()[0])
proxy.setFilterCaseSensitivity(QtCore.Qt.CaseInsensitive)
class Control(QtCore.QObject):
"""Controller
This object is only used to synchronise a list
between Python and QML; it's messy and not ideal.
"""
_levels = "INFO;WARNING"
@QtCore.pyqtProperty(str)
def levels(self):
return self._levels
@QtCore.pyqtSlot(str)
def updateLevels(self, levels):
self._levels = levels
proxy.invalidate()
control = Control()
def filterAcceptsRow(source_row, source_parent):
"""Exclude levels
Overridden in order to exclude any log-record
that isn't part of Control._levels
"""
row = model.items[source_row]
if not row["levelname"] in control._levels.split(";"):
return False
return QtCore.QSortFilterProxyModel.filterAcceptsRow(
proxy, source_row, source_parent)
proxy.filterAcceptsRow = filterAcceptsRow
engine = view.engine()
context = engine.rootContext()
context.setContextProperty("qmodel", proxy)
context.setContextProperty("control", control)
view.setSource(QtCore.QUrl("tst_LogObjectMulti.qml"))
view.setResizeMode(view.SizeRootObjectToView)
view.show()
handler = MessageHandler(model)
log = logging.getLogger()
log.addHandler(handler)
log.setLevel(logging.DEBUG)
# Test data
log.debug("e = mc^2")
log.info("Some information here")
log.info("Some more information")
log.warning("Don't go into the light!")
log.critical("You, sir, are done for.")
log.error("Does not compute")
app.exec_()
