def on_reply_ready(reply, future):
# type: (QNetworkReply, Future) -> None
nonlocal n_redir
# schedule deferred delete to ensure the reply is closed
# otherwise we will leak file/socket descriptors
reply.deleteLater()
future._reply = None
if reply.error() == QNetworkReply.OperationCanceledError:
# The network request was cancelled
reply.close()
future.cancel()
return
if _log.level <= logging.DEBUG:
s = io.StringIO()
print("\n", reply.url(), file=s)
if reply.attribute(QNetworkRequest.SourceIsFromCacheAttribute):
print(" (served from cache)", file=s)
for name, val in reply.rawHeaderPairs():
print(bytes(name).decode("latin-1"), ":",
bytes(val).decode("latin-1"), file=s)
_log.debug(s.getvalue())
if reply.error() != QNetworkReply.NoError:
# XXX Maybe convert the error into standard
# http and urllib exceptions.
future.set_exception(Exception(reply.errorString()))
reply.close()
return
# Handle a possible redirection
location = reply.attribute(
QNetworkRequest.RedirectionTargetAttribute)
if location is not None and n_redir < 1:
n_redir += 1
location = reply.url().resolved(location)
# Retry the original request with a new url.
request = QNetworkRequest(reply.request())
request.setUrl(location)
newreply = self._netmanager.get(request)
future._reply = newreply
newreply.finished.connect(
partial(on_reply_ready, newreply, future))
reply.close()
return
reader = QImageReader(reply)
image = reader.read()
reply.close()
if image.isNull():
future.set_exception(Exception(reader.errorString()))
else:
future.set_result(image)
def on_reply_ready(reply, future):
# type: (QNetworkReply, Future) -> None
nonlocal n_redir
# schedule deferred delete to ensure the reply is closed
# otherwise we will leak file/socket descriptors
reply.deleteLater()
future._reply = None
if reply.error() == QNetworkReply.OperationCanceledError:
# The network request was cancelled
reply.close()
future.cancel()
return
if _log.level <= logging.DEBUG:
s = io.StringIO()
print("\n", reply.url(), file=s)
if reply.attribute(QNetworkRequest.SourceIsFromCacheAttribute):
print(" (served from cache)", file=s)
for name, val in reply.rawHeaderPairs():
print(bytes(name).decode("latin-1"), ":",
bytes(val).decode("latin-1"), file=s)
_log.debug(s.getvalue())
if reply.error() != QNetworkReply.NoError:
# XXX Maybe convert the error into standard
# http and urllib exceptions.
future.set_exception(Exception(reply.errorString()))
reply.close()
return
# Handle a possible redirection
location = reply.attribute(
QNetworkRequest.RedirectionTargetAttribute)
if location is not None and n_redir < 1:
n_redir += 1
location = reply.url().resolved(location)
# Retry the original request with a new url.
request = QNetworkRequest(reply.request())
request.setUrl(location)
newreply = self._netmanager.get(request)
future._reply = newreply
newreply.finished.connect(
partial(on_reply_ready, newreply, future))
reply.close()
return
reader = QImageReader(reply)
image = reader.read()
reply.close()
if image.isNull():
future.set_exception(Exception(reader.errorString()))
else:
future.set_result(image)
def on_reply_ready(reply, future):
nonlocal n_redir
# schedule deferred delete to ensure the reply is closed
# otherwise we will leak file/socket descriptors
reply.deleteLater()
future._reply = None
if reply.error() == QNetworkReply.OperationCanceledError:
# The network request was cancelled
reply.close()
future.cancel()
return
if reply.error() != QNetworkReply.NoError:
# XXX Maybe convert the error into standard
# http and urllib exceptions.
future.set_exception(Exception(reply.errorString()))
reply.close()
return
# Handle a possible redirection
location = reply.attribute(
QNetworkRequest.RedirectionTargetAttribute)
if location is not None and n_redir < 1:
n_redir += 1
location = reply.url().resolved(location)
# Retry the original request with a new url.
request = QNetworkRequest(reply.request())
request.setUrl(location)
newreply = self._netmanager.get(request)
future._reply = newreply
newreply.finished.connect(
partial(on_reply_ready, newreply, future))
reply.close()
return
reader = QImageReader(reply)
image = reader.read()
reply.close()
if image.isNull():
future.set_exception(Exception(reader.errorString()))
else:
future.set_result(image)
def on_reply_ready(reply, future):
nonlocal n_redir
# schedule deferred delete to ensure the reply is closed
# otherwise we will leak file/socket descriptors
reply.deleteLater()
future._reply = None
if reply.error() == QNetworkReply.OperationCanceledError:
# The network request was cancelled
reply.close()
future.cancel()
return
if reply.error() != QNetworkReply.NoError:
# XXX Maybe convert the error into standard
# http and urllib exceptions.
future.set_exception(Exception(reply.errorString()))
reply.close()
return
# Handle a possible redirection
location = reply.attribute(
QNetworkRequest.RedirectionTargetAttribute)
if location is not None and n_redir < 1:
n_redir += 1
location = reply.url().resolved(location)
# Retry the original request with a new url.
request = QNetworkRequest(reply.request())
request.setUrl(location)
newreply = self._netmanager.get(request)
future._reply = newreply
newreply.finished.connect(
partial(on_reply_ready, newreply, future))
reply.close()
return
reader = QImageReader(reply)
image = reader.read()
reply.close()
if image.isNull():
future.set_exception(Exception(reader.errorString()))
else:
future.set_result(image)
def setupScene(self):
self.error()
if self.data:
attr = self.stringAttrs[self.imageAttr]
titleAttr = self.allAttrs[self.titleAttr]
instances = [inst for inst in self.data
if numpy.isfinite(inst[attr])]
assert self.thumbnailView.count() == 0
size = QSizeF(self.imageSize, self.imageSize)
for i, inst in enumerate(instances):
url = self.urlFromValue(inst[attr])
title = str(inst[titleAttr])
thumbnail = GraphicsThumbnailWidget(QPixmap(), title=title)
thumbnail.setThumbnailSize(size)
thumbnail.setToolTip(url.toString())
thumbnail.instance = inst
self.thumbnailView.addThumbnail(thumbnail)
if url.isValid() and url.isLocalFile():
reader = QImageReader(url.toLocalFile())
image = reader.read()
if image.isNull():
error = reader.errorString()
thumbnail.setToolTip(
thumbnail.toolTip() + "\n" + error)
self._errcount += 1
else:
pixmap = QPixmap.fromImage(image)
thumbnail.setPixmap(pixmap)
self._successcount += 1
future = Future()
future.set_result(image)
future._reply = None
elif url.isValid():
future = self.loader.get(url)
@future.add_done_callback
def set_pixmap(future, thumb=thumbnail):
if future.cancelled():
return
assert future.done()
if future.exception():
# Should be some generic error image.
pixmap = QPixmap()
thumb.setToolTip(thumb.toolTip() + "\n" +
str(future.exception()))
else:
pixmap = QPixmap.fromImage(future.result())
thumb.setPixmap(pixmap)
self._noteCompleted(future)
else:
future = None
self.items.append(_ImageItem(i, thumbnail, url, future))
if any(it.future is not None and not it.future.done()
for it in self.items):
self.info.setText("Retrieving...\n")
else:
self._updateStatus()
def setupScene(self):
self.error()
if self.data:
attr = self.stringAttrs[self.imageAttr]
titleAttr = self.allAttrs[self.titleAttr]
assert self.thumbnailView.count() == 0
size = QSizeF(self.imageSize, self.imageSize)
for i, inst in enumerate(self.data):
if not numpy.isfinite(inst[attr]): # skip missing
continue
url = self.urlFromValue(inst[attr])
title = str(inst[titleAttr])
thumbnail = GraphicsThumbnailWidget(QPixmap(), title=title)
thumbnail.setThumbnailSize(size)
thumbnail.setToolTip(url.toString())
thumbnail.instance = inst
self.thumbnailView.addThumbnail(thumbnail)
if url.isValid() and url.isLocalFile():
reader = QImageReader(url.toLocalFile())
image = reader.read()
if image.isNull():
error = reader.errorString()
thumbnail.setToolTip(thumbnail.toolTip() + "\n" +
error)
self._errcount += 1
else:
pixmap = QPixmap.fromImage(image)
thumbnail.setPixmap(pixmap)
self._successcount += 1
future = Future()
future.set_result(image)
future._reply = None
elif url.isValid():
future = self.loader.get(url)
@future.add_done_callback
def set_pixmap(future, thumb=thumbnail):
if future.cancelled():
return
assert future.done()
if future.exception():
# Should be some generic error image.
pixmap = QPixmap()
thumb.setToolTip(thumb.toolTip() + "\n" +
str(future.exception()))
else:
pixmap = QPixmap.fromImage(future.result())
thumb.setPixmap(pixmap)
self._noteCompleted(future)
else:
future = None
self.items.append(_ImageItem(i, thumbnail, url, future))
if any(it.future is not None and not it.future.done()
for it in self.items):
self.info.setText("Retrieving...\n")
else:
self._updateStatus()
def setup_scene(self, process_grid=True):
self.clear_scene()
self.error()
if self.data:
attr = self.stringAttrs[self.imageAttr]
assert self.thumbnailView.count() == 0
size = QSizeF(self.imageSize, self.imageSize)
if process_grid and self.image_grid:
self.process()
self.columns = self.image_grid.size_x
self.rows = self.image_grid.size_y
self.thumbnailView.setFixedColumnCount(self.columns)
self.thumbnailView.setFixedRowCount(self.rows)
for i, inst in enumerate(self.image_grid.image_list):
label_text = (str(inst[self.label_attr])
if self.label_attr is not None else "")
if label_text == "?":
label_text = ""
thumbnail = GraphicsThumbnailWidget(
QPixmap(),
crop=self.cell_fit == 1,
add_label=self.label_selected
and self.label_attr is not None,
text=label_text)
thumbnail.setThumbnailSize(size)
thumbnail.instance = inst
self.thumbnailView.addThumbnail(thumbnail)
if not np.isfinite(inst[attr]) or inst[attr] == "?":
# skip missing
future, url = None, None
else:
url = self.url_from_value(inst[attr])
thumbnail.setToolTip(url.toString())
self.nonempty.append(i)
if url.isValid() and url.isLocalFile():
reader = QImageReader(url.toLocalFile())
image = reader.read()
if image.isNull():
error = reader.errorString()
thumbnail.setToolTip(thumbnail.toolTip() + "\n" +
error)
self._errcount += 1
else:
pixmap = QPixmap.fromImage(image)
thumbnail.setPixmap(pixmap)
self._successcount += 1
future = Future()
future.set_result(image)
future._reply = None
elif url.isValid():
future = self.loader.get(url)
@future.add_done_callback
def set_pixmap(future, thumb=thumbnail):
if future.cancelled():
return
assert future.done()
if future.exception():
# Should be some generic error image.
pixmap = QPixmap()
thumb.setToolTip(thumb.toolTip() + "\n" +
str(future.exception()))
else:
pixmap = QPixmap.fromImage(future.result())
thumb.setPixmap(pixmap)
self._note_completed(future)
else:
future = None
self.items.append(_ImageItem(i, thumbnail, url, future))
if not any(not it.future.done() if it.future else False
for it in self.items):
self._update_status()
self.apply_subset()
self.update_selection()
def setup_scene(self, process_grid=True):
self.error()
if self.data:
attr = self.stringAttrs[self.imageAttr]
assert self.thumbnailView.count() == 0
size = QSizeF(self.imageSize, self.imageSize)
if process_grid and self.image_grid:
self.process()
self.columns = self.image_grid.size_x
self.rows = self.image_grid.size_y
self.thumbnailView.setFixedColumnCount(self.columns)
self.thumbnailView.setFixedRowCount(self.rows)
for i, inst in enumerate(self.image_grid.image_list):
thumbnail = GraphicsThumbnailWidget(QPixmap(), crop=self.cell_fit == 1)
thumbnail.setThumbnailSize(size)
thumbnail.instance = inst
self.thumbnailView.addThumbnail(thumbnail)
if not np.isfinite(inst[attr]) or inst[attr] == "?": # skip missing
future, url = None, None
else:
url = self.url_from_value(inst[attr])
thumbnail.setToolTip(url.toString())
self.nonempty.append(i)
if url.isValid() and url.isLocalFile():
reader = QImageReader(url.toLocalFile())
image = reader.read()
if image.isNull():
error = reader.errorString()
thumbnail.setToolTip(
thumbnail.toolTip() + "\n" + error)
self._errcount += 1
else:
pixmap = QPixmap.fromImage(image)
thumbnail.setPixmap(pixmap)
self._successcount += 1
future = Future()
future.set_result(image)
future._reply = None
elif url.isValid():
future = self.loader.get(url)
@future.add_done_callback
def set_pixmap(future, thumb=thumbnail):
if future.cancelled():
return
assert future.done()
if future.exception():
# Should be some generic error image.
pixmap = QPixmap()
thumb.setToolTip(thumb.toolTip() + "\n" +
str(future.exception()))
else:
pixmap = QPixmap.fromImage(future.result())
thumb.setPixmap(pixmap)
self._note_completed(future)
else:
future = None
self.items.append(_ImageItem(i, thumbnail, url, future))
if any(not it.future.done() if it.future else False for it in self.items):
self.info.setText("Retrieving...\n")
else:
self._update_status()
self.apply_subset()
self.update_selection()