def accept(self):
"""Event handler for when OK is pressed."""
LOGGER.debug('run the tools')
self.get_user_options()
if self.site_layer is None:
self.show_site_layer_information_message()
return
if self.parcel_layer is None:
self.show_parcel_layer_information_message()
return
# check if no feature is selected
if (not self.layer_has_selection(self.site_layer) and
self.selected_sites_only.isChecked()):
self.show_no_selection_warning()
return
if self.output_directory is '' or not os.path.exists(
self.output_directory):
self.show_output_directory_information_message()
return
message_bar = self.iface.messageBar().createMessage(
self.tr('Download SG Diagram'),
self.tr('Please stand by while download process is in progress.'),
self.iface.mainWindow())
progress_bar = QProgressBar()
progress_bar.setMaximumWidth(150)
progress_bar.setAlignment(Qt.AlignLeft | Qt.AlignVCenter)
message_bar.layout().addWidget(progress_bar)
self.iface.messageBar().pushWidget(
message_bar, self.iface.messageBar().INFO)
self.message_bar = message_bar
self.save_state()
self.close()
def progress_callback(current, maximum, message=None):
"""GUI based callback implementation for showing progress.
:param current: Current progress.
:type current: int
:param maximum: Maximum range (point at which task is complete.
:type maximum: int
:param message: Optional message to display in the progress bar
:type message: str, QString
"""
if message is not None:
message_bar.setText(message)
if progress_bar is not None:
progress_bar.setMaximum(maximum)
progress_bar.setValue(current)
report = download_sg_diagrams(
self.database_manager,
self.site_layer,
self.parcel_layer,
self.sg_code_field,
self.output_directory,
self.all_features,
callback=progress_callback)
# Get rid of the message bar again.
self.iface.messageBar().popWidget(message_bar)
#QgsMapLayerRegistry.instance().addMapLayers([layer])
self.iface.messageBar().pushMessage(
self.tr('Download completed.'),
self.tr('Your files are available in %s.' % self.output_directory),
level=QgsMessageBar.INFO,
duration=10)
write_log(report, self.log_file)
self.show_log(report, self.log_file)
def canvasReleaseEvent(self, event):
"""Slot called when the mouse button is released on the canvas.
:param event: Canvas event containing position of click, which button
was clicked etc.
"""
if not event.button() == Qt.LeftButton:
return
def progress_callback(current, maximum, message=None):
"""GUI based callback implementation for showing progress.
:param current: Current progress.
:type current: int
:param maximum: Maximum range (point at which task is complete.
:type maximum: int
:param message: Optional message to display in the progress bar
:type message: str, QString
"""
if message is not None:
self.message_bar.setText(message)
if self.progress_bar is not None:
self.progress_bar.setMaximum(maximum)
self.progress_bar.setValue(current)
self.iface.messageBar().pushMessage(
self.tr('SG Downloader.'),
self.tr('Preparing for download'),
level=QgsMessageBar.INFO,
duration=10)
# No need to check that it is a valid, polygon layer
# as the QAction for this map tool already does that
layer = self.canvas.currentLayer()
place = self.toMapCoordinates(event.pos())
rectangle = point_to_rectangle(place)
request = QgsFeatureRequest(QgsFeatureRequest.FilterRect)
# Ensure only those features really intersecting the rect are returned
request.setFlags(QgsFeatureRequest.ExactIntersect)
request.setFilterRect(rectangle)
polygons = layer.getFeatures(request)
feature = QgsFeature()
fetch_list = []
all_fields = layer.pendingFields()
text_fields = []
# Ignore any columns that don't contain text data
for field in all_fields:
if field.typeName() == 'String' or field.typeName() == 'Text':
text_fields.append(field)
self.setup_message_bar()
sg_field = None
while polygons.nextFeature(feature):
# geom = feature.geometry()
# attributes = feature.attributes()
# matched = False
# sg_code = None
if sg_field is None:
for field in text_fields:
value = str(feature[field.name()])
if not is_valid_sg_code(value):
continue
sg_field = field.name()
fetch_list.append(value)
else:
# We already know which column has SG codes
value = str(feature[sg_field])
fetch_list.append(value)
if len(fetch_list) == 0:
self.iface.messageBar().pushMessage(
self.tr('SG Downloader.'),
self.tr('No parcels found with a valid 21 Digit code'),
level=QgsMessageBar.WARNING,
duration=10)
return
province = province_for_point(self.db_manager, place)
report = ''
sg_diagrams_database = os.path.join(DATA_DIR, 'sg_diagrams.sqlite')
data_manager = DatabaseManager(sg_diagrams_database)
i = 0
for sg_code in fetch_list:
i += 1
message = 'Downloading SG Code %s from %s' % (sg_code, province)
progress_callback(i, len(fetch_list), message)
report += download_sg_diagram(
data_manager,
sg_code,
province,
self.output_directory,
callback=progress_callback)
data_manager.close()
try:
write_log(report, self.log_file)
except IOError as e:
print e
self.show_log(report, self.log_file)
def canvasReleaseEvent(self, event):
"""Slot called when the mouse button is released on the canvas.
:param event: Canvas event containing position of click, which button
was clicked etc.
"""
if not event.button() == Qt.LeftButton:
return
def progress_callback(current, maximum, message=None):
"""GUI based callback implementation for showing progress.
:param current: Current progress.
:type current: int
:param maximum: Maximum range (point at which task is complete.
:type maximum: int
:param message: Optional message to display in the progress bar
:type message: str, QString
"""
if message is not None:
self.message_bar.setText(message)
if self.progress_bar is not None:
self.progress_bar.setMaximum(maximum)
self.progress_bar.setValue(current)
self.iface.messageBar().pushMessage(self.tr('SG Downloader.'),
self.tr('Preparing for download'),
level=QgsMessageBar.INFO,
duration=10)
# No need to check that it is a valid, polygon layer
# as the QAction for this map tool already does that
layer = self.canvas.currentLayer()
place = self.toMapCoordinates(event.pos())
rectangle = point_to_rectangle(place)
request = QgsFeatureRequest(QgsFeatureRequest.FilterRect)
# Ensure only those features really intersecting the rect are returned
request.setFlags(QgsFeatureRequest.ExactIntersect)
request.setFilterRect(rectangle)
polygons = layer.getFeatures(request)
feature = QgsFeature()
fetch_list = []
all_fields = layer.pendingFields()
text_fields = []
# Ignore any columns that don't contain text data
for field in all_fields:
if field.typeName() == 'String' or field.typeName() == 'Text':
text_fields.append(field)
self.setup_message_bar()
sg_field = None
while polygons.nextFeature(feature):
# geom = feature.geometry()
# attributes = feature.attributes()
# matched = False
# sg_code = None
if sg_field is None:
for field in text_fields:
value = str(feature[field.name()])
if not is_valid_sg_code(value):
continue
sg_field = field.name()
fetch_list.append(value)
else:
# We already know which column has SG codes
value = str(feature[sg_field])
fetch_list.append(value)
if len(fetch_list) == 0:
self.iface.messageBar().pushMessage(
self.tr('SG Downloader.'),
self.tr('No parcels found with a valid 21 Digit code'),
level=QgsMessageBar.WARNING,
duration=10)
return
province = province_for_point(self.db_manager, place)
report = ''
sg_diagrams_database = os.path.join(DATA_DIR, 'sg_diagrams.sqlite')
data_manager = DatabaseManager(sg_diagrams_database)
i = 0
for sg_code in fetch_list:
i += 1
message = 'Downloading SG Code %s from %s' % (sg_code, province)
progress_callback(i, len(fetch_list), message)
report += download_sg_diagram(data_manager,
sg_code,
province,
self.output_directory,
callback=progress_callback)
data_manager.close()
try:
write_log(report, self.log_file)
except IOError as e:
print e
self.show_log(report, self.log_file)
def accept(self):
"""Event handler for when OK is pressed."""
LOGGER.debug('run the tools')
self.get_user_options()
if self.site_layer is None:
self.show_site_layer_information_message()
return
if self.parcel_layer is None:
self.show_parcel_layer_information_message()
return
# check if no feature is selected
if (not self.layer_has_selection(self.site_layer)
and self.selected_sites_only.isChecked()):
self.show_no_selection_warning()
return
if self.output_directory is '' or not os.path.exists(
self.output_directory):
self.show_output_directory_information_message()
return
message_bar = self.iface.messageBar().createMessage(
self.tr('Download SG Diagram'),
self.tr('Please stand by while download process is in progress.'),
self.iface.mainWindow())
progress_bar = QProgressBar()
progress_bar.setMaximumWidth(150)
progress_bar.setAlignment(Qt.AlignLeft | Qt.AlignVCenter)
message_bar.layout().addWidget(progress_bar)
self.iface.messageBar().pushWidget(message_bar,
self.iface.messageBar().INFO)
self.message_bar = message_bar
self.save_state()
self.close()
def progress_callback(current, maximum, message=None):
"""GUI based callback implementation for showing progress.
:param current: Current progress.
:type current: int
:param maximum: Maximum range (point at which task is complete.
:type maximum: int
:param message: Optional message to display in the progress bar
:type message: str, QString
"""
if message is not None:
message_bar.setText(message)
if progress_bar is not None:
progress_bar.setMaximum(maximum)
progress_bar.setValue(current)
report = download_sg_diagrams(self.database_manager,
self.site_layer,
self.parcel_layer,
self.sg_code_field,
self.output_directory,
self.all_features,
callback=progress_callback)
# Get rid of the message bar again.
self.iface.messageBar().popWidget(message_bar)
#QgsMapLayerRegistry.instance().addMapLayers([layer])
self.iface.messageBar().pushMessage(
self.tr('Download completed.'),
self.tr('Your files are available in %s.' % self.output_directory),
level=QgsMessageBar.INFO,
duration=10)
write_log(report, self.log_file)
self.show_log(report, self.log_file)
