ich habe mir eine Klasse geschrieben, die einen Hochladevorgang simuliert. Damit die Gui nicht geblockt wird, habe ich einen QThread subclassed (wie sagt man das auf Deutsch?
) und kommuniziere mit Signalen, um z.B. eine QProgressBar zu aktualisieren. Das klappt auch soweit ganz gut, allerdings mit dem Problem, dass ich in der Gui selber nichts berühren kann. Also die QProgressBar wird aktualisiert, aber ich kann währenddessen nichts anderes anklicken. Code: Alles auswählen
class MockUpload(QtCore.QThread):
"""
A QThread which will sequentially “upload” the files in the list.
Accepts a list of dictionaries with the file data (Generated by the
FileTableModel.file_data).
Signals:
file_upload_status(int, int)
Emitted every time a new “step” is completed. Emits the file index and
the transferred bytes for the current file.
file_upload_completed(int)
Emitted when a single file upload is completed. Emits the file index.
finished()
Emitted when the entire thread is completed.
"""
file_upload_status = QtCore.pyqtSignal(int, int) # File number, transferred bytes
file_upload_completed = QtCore.pyqtSignal(int) # File number
def __init__(self, file_data):
"""
Receives a list of dictionaries with the files to upload.
"""
QtCore.QThread.__init__(self)
self.files_data = file_data
#For mock upload:
self.steps = 10
def run(self):
for file_number, file_data in enumerate(self.files_data):
self.mock_upload(file_number)
def mock_upload(self, file_number):
transferred = 0
print("Starting mock upload of {}, taking {} steps.".format(
self.files_data[file_number]["file_path"],
self.steps))
for i in range(self.steps):
transferred += int(self.files_data[file_number]["file_size"] / self.steps)
print("Transferred {} Bytes".format(transferred))
self.file_upload_status.emit(file_number, transferred)
time.sleep(1)
self.file_upload_completed.emit(file_number)
print("Completed upload of {}.".format(self.files_data[file_number]["file_path"]))
Code: Alles auswählen
def onUpload(self):
"""
Slot for the upload button.
"""
#TODO: Button should be disabled if model has no files.
if self.files_model.has_files:
self.overallProgress.setMaximum(self.files_model.overall_size)
self.upload = MockUpload(self.files_model.file_data)
self.upload.file_upload_status.connect(self._update_progress)
self.upload.file_upload_completed.connect(self._set_completed)
self.upload.run()
