def on_cboPolygonLayers_currentIndexChanged(self, index):
"""Automatic slot executed when the layer is changed to update fields.
:param index: Passed by the signal that triggers this slot.
:type index: int
"""
layer_id = self.cboPolygonLayers.itemData(
index, QtCore.Qt.UserRole)
# noinspection PyArgumentList
layer = QgsMapLayerRegistry.instance().mapLayer(layer_id)
fields = layer.pendingFields()
self.cboFields.clear()
has_fields = False
for field in fields:
LOGGER.info(field.typeName())
# TODO exclude dates too? TS
if field.typeName() != 'String':
has_fields = True
add_ordered_combo_item(
self.cboFields, field.name(), field.name())
# Now disable the run button if no suitable fields were found
# see #2206
ok_button = self.button_box.button(QtGui.QDialogButtonBox.Ok)
if not has_fields:
ok_button.setEnabled(False)
else:
ok_button.setEnabled(True)
def on_cboPolygonLayers_currentIndexChanged(self, index):
"""Automatic slot executed when the layer is changed to update fields.
:param index: Passed by the signal that triggers this slot.
:type index: int
"""
layer_id = self.cboPolygonLayers.itemData(index, QtCore.Qt.UserRole)
# noinspection PyArgumentList
layer = QgsMapLayerRegistry.instance().mapLayer(layer_id)
fields = layer.pendingFields()
self.cboFields.clear()
has_fields = False
for field in fields:
LOGGER.info(field.typeName())
# TODO exclude dates too? TS
if field.typeName() != 'String':
has_fields = True
add_ordered_combo_item(self.cboFields, field.name(),
field.name())
# Now disable the run button if no suitable fields were found
# see #2206
ok_button = self.button_box.button(QtGui.QDialogButtonBox.Ok)
if not has_fields:
ok_button.setEnabled(False)
else:
ok_button.setEnabled(True)
def on_cboPolygonLayers_currentIndexChanged(self, theIndex=None):
"""Automatic slot executed when the layer is changed to update fields.
:param theIndex: Passed by the signal that triggers this slot.
:type theIndex: int
"""
layer_id = self.cboPolygonLayers.itemData(theIndex, QtCore.Qt.UserRole)
# noinspection PyArgumentList
layer = QgsMapLayerRegistry.instance().mapLayer(layer_id)
fields = layer.dataProvider().fieldNameMap().keys()
self.cboFields.clear()
for field in fields:
add_ordered_combo_item(self.cboFields, field, field)
def on_cboPolygonLayers_currentIndexChanged(self, theIndex=None):
"""Automatic slot executed when the layer is changed to update fields.
:param theIndex: Passed by the signal that triggers this slot.
:type theIndex: int
"""
layer_id = self.cboPolygonLayers.itemData(
theIndex, QtCore.Qt.UserRole)
# noinspection PyArgumentList
layer = QgsMapLayerRegistry.instance().mapLayer(layer_id)
fields = layer.dataProvider().fieldNameMap().keys()
self.cboFields.clear()
for field in fields:
add_ordered_combo_item(self.cboFields, field, field)
def polygon_layers_to_combo(self):
"""Populate the combo with all polygon layers loaded in QGIS."""
# noinspection PyArgumentList
registry = QgsMapLayerRegistry.instance()
layers = registry.mapLayers().values()
found_flag = False
for layer in layers:
name = layer.name()
source = layer.id()
# check if layer is a vector polygon layer
if is_polygon_layer(layer) or is_point_layer(layer):
found_flag = True
add_ordered_combo_item(self.cboPolygonLayers, name, source)
if found_flag:
self.cboPolygonLayers.setCurrentIndex(0)
def polygon_layers_to_combo(self):
"""Populate the combo with all polygon layers loaded in QGIS."""
# noinspection PyArgumentList
registry = QgsMapLayerRegistry.instance()
layers = registry.mapLayers().values()
found_flag = False
for layer in layers:
name = layer.name()
source = str(layer.id())
# check if layer is a vector polygon layer
if is_polygon_layer(layer) or is_point_layer(layer):
found_flag = True
add_ordered_combo_item(self.cboPolygonLayers, name, source)
if found_flag:
self.cboPolygonLayers.setCurrentIndex(0)
def polygon_layers_to_combo(self):
"""Populate the combo with all polygon layers loaded in QGIS."""
# noinspection PyArgumentList
registry = QgsMapLayerRegistry.instance()
layers = registry.mapLayers().values()
found_flag = False
for layer in layers:
name = layer.name()
source = layer.id()
# check if layer is a vector polygon layer
if is_polygon_layer(layer) or is_point_layer(layer):
found_flag = True
add_ordered_combo_item(self.cboPolygonLayers, name, source)
# Now disable the run button if no suitable layers were found
# see #2206
ok_button = self.button_box.button(QtGui.QDialogButtonBox.Ok)
if found_flag:
self.cboPolygonLayers.setCurrentIndex(0)
ok_button.setEnabled(True)
else:
ok_button.setEnabled(False)
def polygon_layers_to_combo(self):
"""Populate the combo with all polygon layers loaded in QGIS."""
# noinspection PyArgumentList
registry = QgsMapLayerRegistry.instance()
layers = registry.mapLayers().values()
found_flag = False
for layer in layers:
name = layer.name()
source = layer.id()
# check if layer is a vector polygon layer
if is_polygon_layer(layer) or is_point_layer(layer):
found_flag = True
add_ordered_combo_item(self.cboPolygonLayers, name, source)
# Now disable the run button if no suitable layers were found
# see #2206
ok_button = self.button_box.button(QtGui.QDialogButtonBox.Ok)
if found_flag:
self.cboPolygonLayers.setCurrentIndex(0)
ok_button.setEnabled(True)
else:
ok_button.setEnabled(False)
def get_project_layers(self):
"""Get impact layers and aggregation layer currently loaded in QGIS."""
# noinspection PyArgumentList,PyUnresolvedReferences
registry = QgsMapLayerRegistry.instance()
# MapLayers returns a QMap<QString id, QgsMapLayer layer>
layers = registry.mapLayers().values()
if len(layers) == 0:
return
# Clear the combo box first
self.first_layer.clear()
self.second_layer.clear()
self.aggregation_layer.clear()
# empty list
self.available_aggregation[:] = []
for layer in layers:
try:
self.keyword_io.read_keywords(layer, 'impact_summary')
except (NoKeywordsFoundError, KeywordNotFoundError):
# Check if it has aggregation keyword
try:
self.keyword_io.read_keywords(
layer, 'aggregation attribute')
except (NoKeywordsFoundError, KeywordNotFoundError):
# Skip if there are no keywords at all
continue
self.available_aggregation.append(layer)
add_ordered_combo_item(
self.aggregation_layer,
layer.name(),
layer)
continue
except (UnsupportedProviderError, InvalidParameterError):
# UnsupportedProviderError:
# Encounter unsupported provider layer, e.g Open Layer
# InvalidParameterError:
# Encounter invalid layer source,
# see https://github.com/AIFDR/inasafe/issues/754
continue
add_ordered_combo_item(self.first_layer, layer.name(), layer)
add_ordered_combo_item(self.second_layer, layer.name(), layer)
# Add Entire Area Option to Aggregated Layer:
self.aggregation_layer.insertItem(
0,
self.tr('Entire Area'),
None
)
self.aggregation_layer.setCurrentIndex(0)
def get_project_layers(self):
"""Get impact layers and aggregation layer currently loaded in QGIS."""
# noinspection PyArgumentList,PyUnresolvedReferences
registry = QgsMapLayerRegistry.instance()
# MapLayers returns a QMap<QString id, QgsMapLayer layer>
layers = registry.mapLayers().values()
if len(layers) == 0:
return
# Clear the combo box first
self.first_layer.clear()
self.second_layer.clear()
self.aggregation_layer.clear()
# empty list
self.available_aggregation[:] = []
for layer in layers:
try:
self.keyword_io.read_keywords(layer, 'impact_summary')
except (NoKeywordsFoundError, KeywordNotFoundError):
# Check if it has aggregation keyword
try:
self.keyword_io.read_keywords(layer,
'aggregation attribute')
except (NoKeywordsFoundError, KeywordNotFoundError):
# Skip if there are no keywords at all
continue
self.available_aggregation.append(layer)
add_ordered_combo_item(self.aggregation_layer, layer.name(),
layer)
continue
except (UnsupportedProviderError, InvalidParameterError):
# UnsupportedProviderError:
# Encounter unsupported provider layer, e.g Open Layer
# InvalidParameterError:
# Encounter invalid layer source,
# see https://github.com/AIFDR/inasafe/issues/754
continue
add_ordered_combo_item(self.first_layer, layer.name(), layer)
add_ordered_combo_item(self.second_layer, layer.name(), layer)
# Add Entire Area Option to Aggregated Layer:
self.aggregation_layer.insertItem(0, self.tr('Entire Area'), None)
self.aggregation_layer.setCurrentIndex(0)
def __init__(self, parent=None, iface=None):
"""Constructor for Raster Reclassification to Vector Polygon.
.. versionadded: 3.4
: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('Raster Reclassification'))
self.iface = iface
self.if_registry = Registry()
self.keyword_io = KeywordIO()
# populate raster input
self.cbo_raster_input.clear()
registry = QgsMapLayerRegistry.instance()
# MapLayers returns a QMap<QString id, QgsMapLayer layer>
layers = registry.mapLayers().values()
for layer in layers:
try:
name = layer.name()
source = layer.id()
layer_purpose = self.keyword_io.read_keywords(
layer, 'layer_purpose')
if (isinstance(layer, QgsRasterLayer) and
layer_purpose == 'hazard'):
add_ordered_combo_item(
self.cbo_raster_input, self.tr(name), source)
except Exception as e:
raise e
# self.input_list_parameter = InputListParameter()
# self.input_list_parameter.name = 'Thresholds'
# self.input_list_parameter.description = (
# 'List of thresholds of values used in reclassification.')
# self.input_list_parameter.help_text = 'list of thresholds used'
# self.input_list_parameter.maximum_item_count = 100
# self.input_list_parameter.minimum_item_count = 1
# self.input_list_parameter.element_type = float
# self.input_list_parameter.value = [0.0, 1.0]
# self.input_list_parameter.ordering = \
# InputListParameter.AscendingOrder
# self.thresholds_widget = InputListParameterWidget(
# self.input_list_parameter)
# self.threshold_editor.layout().addWidget(self.thresholds_widget)
# Set up context help
self.help_button = self.button_box.button(QtGui.QDialogButtonBox.Help)
self.ok_button = self.button_box.button(QtGui.QDialogButtonBox.Ok)
# self.cancel_button = self.button_box.button(
# QtGui.QDialogButtonBox.Cancel)
self.button_box.accepted.connect(self.accept)
self.button_box.rejected.connect(self.reject)
# Allow toggling the help button
self.help_button.setCheckable(True)
self.help_button.toggled.connect(self.help_toggled)
self.main_stacked_widget.setCurrentIndex(1)
# adapt layer changed
self.cbo_raster_input.currentIndexChanged.connect(self.raster_changed)
self.raster_changed(self.cbo_raster_input.currentIndex())
