def fetch_zip(url, output_path, feature_type, progress_dialog=None):
"""Download zip containing shp file and write to output_path.
.. versionadded:: 3.2
:param url: URL of the zip bundle.
:type url: str
:param output_path: Path of output file,
:type output_path: str
:param feature_type: What kind of features should be downloaded.
Currently 'buildings', 'building-points' or 'roads' are supported.
:type feature_type: str
:param progress_dialog: A progress dialog.
:type progress_dialog: QProgressDialog
:raises: ImportDialogError - when network error occurred
"""
LOGGER.debug('Downloading file from URL: %s' % url)
LOGGER.debug('Downloading to: %s' % output_path)
if progress_dialog:
progress_dialog.show()
# Infinite progress bar when the server is fetching data.
# The progress bar will be updated with the file size later.
progress_dialog.setMaximum(0)
progress_dialog.setMinimum(0)
progress_dialog.setValue(0)
# Get a pretty label from feature_type, but not translatable
label_feature_type = feature_type.replace('-', ' ')
label_text = tr('Fetching %s' % label_feature_type)
progress_dialog.setLabelText(label_text)
# Set Proxy in web page
proxy = get_proxy()
network_manager = QNetworkAccessManager()
if proxy is not None:
network_manager.setProxy(proxy)
# Download Process
downloader = FileDownloader(network_manager, url, output_path,
progress_dialog)
try:
result = downloader.download()
except IOError as ex:
raise IOError(ex)
if result[0] is not True:
_, error_message = result
if result[0] == QNetworkReply.OperationCanceledError:
raise CanceledImportDialogError(error_message)
else:
raise DownloadError(error_message)
def fetch_zip(url, output_path, feature_type, progress_dialog=None):
"""Download zip containing shp file and write to output_path.
.. versionadded:: 3.2
:param url: URL of the zip bundle.
:type url: str
:param output_path: Path of output file,
:type output_path: str
:param feature_type: What kind of features should be downloaded.
Currently 'buildings', 'building-points' or 'roads' are supported.
:type feature_type: str
:param progress_dialog: A progress dialog.
:type progress_dialog: QProgressDialog
:raises: ImportDialogError - when network error occurred
"""
LOGGER.debug('Downloading file from URL: %s' % url)
LOGGER.debug('Downloading to: %s' % output_path)
if progress_dialog:
progress_dialog.show()
# Infinite progress bar when the server is fetching data.
# The progress bar will be updated with the file size later.
progress_dialog.setMaximum(0)
progress_dialog.setMinimum(0)
progress_dialog.setValue(0)
# Get a pretty label from feature_type, but not translatable
label_feature_type = feature_type.replace('-', ' ')
label_text = tr('Fetching %s' % label_feature_type)
progress_dialog.setLabelText(label_text)
# Set Proxy in web page
proxy = get_proxy()
network_manager = QNetworkAccessManager()
if proxy is not None:
network_manager.setProxy(proxy)
# Download Process
downloader = FileDownloader(
network_manager, url, output_path, progress_dialog)
try:
result = downloader.download()
except IOError as ex:
raise IOError(ex)
if result[0] is not True:
_, error_message = result
if result[0] == QNetworkReply.OperationCanceledError:
raise CanceledImportDialogError(error_message)
else:
raise DownloadError(error_message)
def __init__(self, parent=None, iface=None):
"""Constructor for import dialog.
:param parent: Optional widget to use as parent
:type parent: QWidget
:param iface: An instance of QGisInterface
:type iface: QGisInterface
"""
QDialog.__init__(self, parent)
self.parent = parent
self.setupUi(self)
self.setWindowTitle(self.tr('InaSAFE OpenStreetMap Downloader'))
self.iface = iface
self.buildings_url = 'http://osm.linfiniti.com/buildings-shp'
self.building_points_url = \
'http://osm.linfiniti.com/building-points-shp'
self.roads_url = 'http://osm.linfiniti.com/roads-shp'
self.help_context = 'openstreetmap_downloader'
# creating progress dialog for download
self.progress_dialog = QProgressDialog(self)
self.progress_dialog.setAutoClose(False)
title = self.tr('InaSAFE OpenStreetMap Downloader')
self.progress_dialog.setWindowTitle(title)
# Set up context help
help_button = self.button_box.button(QtGui.QDialogButtonBox.Help)
help_button.clicked.connect(self.show_help)
self.show_info()
# set up the validator for the file name prefix
expression = QRegExp('^[A-Za-z0-9-_]*$')
validator = QRegExpValidator(expression, self.filename_prefix)
self.filename_prefix.setValidator(validator)
# Set Proxy in webpage
proxy = get_proxy()
self.network_manager = QNetworkAccessManager(self)
if proxy is not None:
self.network_manager.setProxy(proxy)
self.restore_state()
# Setup the rectangle map tool
self.canvas = iface.mapCanvas()
self.rectangle_map_tool = \
RectangleMapTool(self.canvas)
self.rectangle_map_tool.rectangle_created.connect(
self.update_extent_from_rectangle)
self.button_extent_rectangle.clicked.connect(
self.drag_rectangle_on_map_canvas)
# Setup pan tool
self.pan_tool = QgsMapToolPan(self.canvas)
self.canvas.setMapTool(self.pan_tool)
self.update_extent_from_map_canvas()
def __init__(self, parent=None, iface=None):
"""Constructor for import dialog.
:param parent: Optional widget to use as parent
:type parent: QWidget
:param iface: An instance of QGisInterface
:type iface: QGisInterface
"""
QDialog.__init__(self, parent)
self.parent = parent
self.setupUi(self)
self.setWindowTitle(self.tr('InaSAFE OpenStreetMap Downloader'))
self.iface = iface
self.buildings_url = 'http://osm.linfiniti.com/buildings-shp'
self.building_points_url = \
'http://osm.linfiniti.com/building-points-shp'
self.roads_url = 'http://osm.linfiniti.com/roads-shp'
self.help_context = 'openstreetmap_downloader'
# creating progress dialog for download
self.progress_dialog = QProgressDialog(self)
self.progress_dialog.setAutoClose(False)
title = self.tr('InaSAFE OpenStreetMap Downloader')
self.progress_dialog.setWindowTitle(title)
# Set up context help
help_button = self.button_box.button(QtGui.QDialogButtonBox.Help)
help_button.clicked.connect(self.show_help)
self.show_info()
# set up the validator for the file name prefix
expression = QRegExp('^[A-Za-z0-9-_]*$')
validator = QRegExpValidator(expression, self.filename_prefix)
self.filename_prefix.setValidator(validator)
# Set Proxy in webpage
proxy = get_proxy()
self.network_manager = QNetworkAccessManager(self)
if proxy is not None:
self.network_manager.setProxy(proxy)
self.restore_state()
# Setup the rectangle map tool
self.canvas = iface.mapCanvas()
self.rectangle_map_tool = \
RectangleMapTool(self.canvas)
self.rectangle_map_tool.rectangle_created.connect(
self.update_extent_from_rectangle)
self.button_extent_rectangle.clicked.connect(
self.drag_rectangle_on_map_canvas)
# Setup pan tool
self.pan_tool = QgsMapToolPan(self.canvas)
self.canvas.setMapTool(self.pan_tool)
self.update_extent_from_map_canvas()