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progress bar in file transfers

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This commit is contained in:
Андрей Владимирович 2016-03-21 20:19:13 +03:00
parent 61d4a28d6b
commit 2131fa3868
3 changed files with 46 additions and 45 deletions
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76
src/file_transfers.py
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@ -15,13 +15,13 @@ TOX_FILE_TRANSFER_STATE = {
}
class Signal(QtCore.QObject):
signal = QtCore.Signal(str)
class StateSignal(QtCore.QObject):
signal = QtCore.Signal(int, float)
class FileTransfer(QtCore.QObject):
def __init__(self, path, tox, friend_number, file_number=None):
def __init__(self, path, tox, friend_number, size, file_number=None):
QtCore.QObject.__init__(self)
self._path = path
self._tox = tox
@ -29,13 +29,15 @@ class FileTransfer(QtCore.QObject):
self.state = TOX_FILE_TRANSFER_STATE['RUNNING']
self._file_number = file_number
self._creation_time = time()
self._signal = Signal()
self._size = size
self._done = 0
self._state_changed = StateSignal()
def set_tox(self, tox):
self._tox = tox
def set_event_handler(self, handler):
self._signal.signal.connect(handler)
def set_state_changed_handler(self, handler):
self._state_changed.signal.connect(handler)
def get_file_number(self):
return self._file_number
@ -46,95 +48,95 @@ class FileTransfer(QtCore.QObject):
def cancel(self):
self.send_control(TOX_FILE_CONTROL['CANCEL'])
self._file.close()
print id(self._signal)
self._signal.signal.emit('{} {}'.format(self.state, 0))
self._state_changed.signal.emit(self.state, self._done / self._size)
def send_control(self, control):
if self._tox.file_control(self._friend_number, self._file_number, control):
self.state = control
self._state_changed.signal.emit(self.state, self._done / self._size)
def get_file_id(self):
return self._tox.file_get_file_id(self._friend_number, self._file_number)
def file_seek(self):
# TODO implement
# TODO implement or not implement
pass
class SendTransfer(FileTransfer):
def __init__(self, path, tox, friend_number, kind=TOX_FILE_KIND['DATA'], file_id=None):
super(SendTransfer, self).__init__(path, tox, friend_number)
self._file_number = tox.file_send(friend_number,
kind,
getsize(path) if path else 0,
file_id,
basename(path).encode('utf-8') if path else '')
if path is not None:
self._file = open(path, 'rb')
size = getsize(path)
else:
size = 0
super(SendTransfer, self).__init__(path, tox, friend_number, size)
self._file_number = tox.file_send(friend_number, kind, size, file_id,
basename(path).encode('utf-8') if path else '')
def send_chunk(self, position, size):
if size:
self._file.seek(position)
data = self._file.read(size)
# TODO: fix bug with wrong data for file_send_chunk
self._tox.file_send_chunk(self._friend_number, self._file_number, position, data)
self._signal.signal.emit('{} {}'.format(self.state, 0))
#print self._friend_number, self._file_number, position, data
self._done += size
self._state_changed.signal.emit(self.state, self._done / self._size)
else:
self._file.close()
self.state = TOX_FILE_TRANSFER_STATE['FINISHED']
self._signal.signal.emit('{} {}'.format(self.state, 100))
self._state_changed.signal.emit(self.state, self._done / self._size)
class SendAvatar(SendTransfer):
def __init__(self, path, tox, friend_number):
if path is None:
super(SendAvatar, self).__init__(path, tox, friend_number, TOX_FILE_KIND['AVATAR'])
hash = None
else:
with open(path, 'rb') as fl:
hash = Tox.hash(fl.read())
super(self.__class__, self).__init__(path, tox, friend_number, TOX_FILE_KIND['AVATAR'], hash)
super(SendAvatar, self).__init__(path, tox, friend_number, TOX_FILE_KIND['AVATAR'], hash)
class ReceiveTransfer(FileTransfer):
def __init__(self, path, tox, friend_number, file_number):
super(ReceiveTransfer, self).__init__(path, tox, friend_number, file_number)
def __init__(self, path, tox, friend_number, size, file_number):
super(ReceiveTransfer, self).__init__(path, tox, friend_number, size, file_number)
self._file = open(self._path, 'wb')
self._file.truncate(0)
self._size = 0
self._file_size = 0
def cancel(self):
super(ReceiveTransfer, self).cancel()
remove(self._path)
def write_chunk(self, position, data):
if data is not None:
if data is None:
self._file.close()
self.state = TOX_FILE_TRANSFER_STATE['FINISHED']
self._state_changed.signal.emit(self.state, self._done / self._size)
else:
data = ''.join(chr(x) for x in data)
if self._size < position:
if self._file_size < position:
self._file.seek(0, 2)
self._file.write('\0' * (position - self._size))
self._file.write('\0' * (position - self._file_size))
self._file.seek(position)
self._file.write(data)
self._file.flush()
if position + len(data) > self._size:
self._size = position + len(data)
self._signal.signal.emit('{} {}'.format(self.state, 0))
else:
self._file.close()
self.state = TOX_FILE_TRANSFER_STATE['FINISHED']
self._signal.signal.emit('{} {}'.format(self.state, 100))
if position + len(data) > self._file_size:
self._file_size = position + len(data)
self._done += len(data)
self._state_changed.signal.emit(self.state, self._done / self._size)
class ReceiveAvatar(ReceiveTransfer):
def __init__(self, tox, friend_number, file_number, has_size=True):
def __init__(self, tox, friend_number, size, file_number):
path = profile.ProfileHelper.get_path() + '/avatars/{}.png'.format(tox.friend_get_public_key(friend_number))
super(ReceiveAvatar, self).__init__(path, tox, friend_number, file_number)
super(ReceiveAvatar, self).__init__(path, tox, friend_number, size, file_number)
if exists(path):
if not has_size:
if not size:
remove(path)
self.send_control(TOX_FILE_CONTROL['CANCEL'])
self.state = TOX_FILE_TRANSFER_STATE['CANCELED']