class LogModel(QAbstractTableModel):
COLUMNS = ['Log Level', 'Tag', 'PID', 'Log Line']
# TODO(dany): Use named tokens in the RegEx
LINE_REGEX = re.compile(r'([VLEIWD])/(.*)\(\s*(\d+)\): (.*)')
data_changed = Signal()
def __init__(self, start_time):
super(LogModel, self).__init__()
self.start_time = start_time
self.rows = []
self.pending = []
self.last_update = time.time()
self.filename = None
self.reader = None
self.search_params = None
def rowCount(self, parent=QModelIndex()):
return len(self.rows)
def columnCount(self, parent=QModelIndex()):
return len(self.COLUMNS)
def is_matching_row(self, row):
string, is_cs, is_regex = self.search_params
if is_regex:
# TODO(dany): Maybe it would be faster to cache the regex object
# and use it instead of having re compile it every time
return re.match(string, row['Log Line'], re.I if is_cs else 0)
else:
if is_cs:
return string.lower() in row['Log Line'].lower()
else:
return string in row['Log Line']
def data(self, index, role=Qt.DisplayRole):
row = index.row()
col = index.column()
if role == Qt.DisplayRole:
return self.rows[row][self.COLUMNS[col]]
elif role == Qt.BackgroundColorRole:
if self.search_params is None:
return None
if self.is_matching_row(self.rows[row]):
return QColor(255, 255, 0)
else:
return None
def headerData(self, index, orientation, role):
if orientation == Qt.Horizontal and role == Qt.DisplayRole:
return self.COLUMNS[index]
else:
return None
def addItem(self, item):
match = self.LINE_REGEX.match(item)
if match is not None:
log_level, tag, pid, line = match.groups()
# TODO(dany): When the regex has tokens, I can just use groupdict
self.pending.append({
'Tag': tag.strip(),
'Log Level': log_level,
'PID': pid.strip(),
'Log Line': line
})
if (time.time() - self.last_update) > 1:
self.beginInsertRows(QModelIndex(), len(self.rows),
len(self.rows) + len(self.pending) - 1)
self.rows.extend(self.pending)
self.endInsertRows()
self.data_changed.emit()
self.pending = []
self.last_update = time.time()
def set_search_params(self, string, is_cs, is_re):
if string != '':
self.search_params = (string, is_cs, is_re)
else:
self.search_params = None
self.dataChanged.emit(self.index(0, 0),
self.index(self.rowCount(), self.columnCount()))
def start(self):
self.reader = LogcatReader(self, self.start_time)
self.reader.start()
def stop(self):
if self.reader and self.reader.running.is_set():
self.reader.stop()
self.reader.join()
self.reader = None
def start(self):
self.reader = LogcatReader(self, self.start_time)
self.reader.start()
