def initWidgets(self):
super().initWidgets()
widget_context = QgsProcessingParameterWidgetContext()
widget_context.setProject(QgsProject.instance())
if iface is not None:
widget_context.setMapCanvas(iface.mapCanvas())
widget_context.setBrowserModel(iface.browserModel())
widget_context.setActiveLayer(iface.activeLayer())
widget_context.setMessageBar(self.parent().messageBar())
if isinstance(self.algorithm(), QgsProcessingModelAlgorithm):
widget_context.setModel(self.algorithm())
in_place_input_parameter_name = 'INPUT'
if hasattr(self.algorithm(), 'inputParameterName'):
in_place_input_parameter_name = self.algorithm(
).inputParameterName()
# Create widgets and put them in layouts
for param in self.algorithm().parameterDefinitions():
if param.flags() & QgsProcessingParameterDefinition.FlagHidden:
continue
if param.isDestination():
continue
else:
if self.in_place and param.name() in (
in_place_input_parameter_name, 'OUTPUT'):
# don't show the input/output parameter widgets in in-place mode
# we still need to CREATE them, because other wrappers may need to interact
# with them (e.g. those parameters which need the input layer for field
# selections/crs properties/etc)
self.wrappers[
param.name()] = QgsProcessingHiddenWidgetWrapper(
param, QgsProcessingGui.Standard, self)
self.wrappers[param.name()].setLinkedVectorLayer(
self.active_layer)
continue
wrapper = WidgetWrapperFactory.create_wrapper(
param, self.parent())
wrapper.setWidgetContext(widget_context)
wrapper.registerProcessingContextGenerator(
self.context_generator)
wrapper.registerProcessingParametersGenerator(self)
self.wrappers[param.name()] = wrapper
# For compatibility with 3.x API, we need to check whether the wrapper is
# the deprecated WidgetWrapper class. If not, it's the newer
# QgsAbstractProcessingParameterWidgetWrapper class
# TODO QGIS 4.0 - remove
is_python_wrapper = issubclass(wrapper.__class__,
WidgetWrapper)
stretch = 0
if not is_python_wrapper:
widget = wrapper.createWrappedWidget(
self.processing_context)
stretch = wrapper.stretch()
else:
widget = wrapper.widget
if widget is not None:
if is_python_wrapper:
widget.setToolTip(param.toolTip())
label = None
if not is_python_wrapper:
label = wrapper.createWrappedLabel()
else:
label = wrapper.label
if label is not None:
self.addParameterLabel(param, label)
elif is_python_wrapper:
desc = param.description()
if isinstance(param, QgsProcessingParameterExtent):
desc += self.tr(' (xmin, xmax, ymin, ymax)')
if param.flags(
) & QgsProcessingParameterDefinition.FlagOptional:
desc += self.tr(' [optional]')
widget.setText(desc)
self.addParameterWidget(param, widget, stretch)
for output in self.algorithm().destinationParameterDefinitions():
if output.flags() & QgsProcessingParameterDefinition.FlagHidden:
continue
if self.in_place and output.name() in (
in_place_input_parameter_name, 'OUTPUT'):
continue
wrapper = QgsGui.processingGuiRegistry(
).createParameterWidgetWrapper(output, QgsProcessingGui.Standard)
wrapper.setWidgetContext(widget_context)
wrapper.registerProcessingContextGenerator(self.context_generator)
wrapper.registerProcessingParametersGenerator(self)
self.wrappers[output.name()] = wrapper
label = wrapper.createWrappedLabel()
if label is not None:
self.addOutputLabel(label)
widget = wrapper.createWrappedWidget(self.processing_context)
self.addOutputWidget(widget, wrapper.stretch())
# def skipOutputChanged(widget, checkbox, skipped):
# TODO
# enabled = not skipped
#
# # Do not try to open formats that are write-only.
# value = widget.value()
# if value and isinstance(value, QgsProcessingOutputLayerDefinition) and isinstance(output, (
# QgsProcessingParameterFeatureSink, QgsProcessingParameterVectorDestination)):
# filename = value.sink.staticValue()
# if filename not in ('memory:', ''):
# path, ext = os.path.splitext(filename)
# format = QgsVectorFileWriter.driverForExtension(ext)
# drv = gdal.GetDriverByName(format)
# if drv:
# if drv.GetMetadataItem(gdal.DCAP_OPEN) is None:
# enabled = False
#
# checkbox.setEnabled(enabled)
# checkbox.setChecked(enabled)
for wrapper in list(self.wrappers.values()):
wrapper.postInitialize(list(self.wrappers.values()))
def initWidgets(self):
# If there are advanced parameters — show corresponding groupbox
for param in self.alg.parameterDefinitions():
if param.flags() & QgsProcessingParameterDefinition.FlagAdvanced:
self.grpAdvanced.show()
break
widget_context = QgsProcessingParameterWidgetContext()
widget_context.setProject(QgsProject.instance())
if iface is not None:
widget_context.setMapCanvas(iface.mapCanvas())
widget_context.setBrowserModel(iface.browserModel())
widget_context.setMessageBar(self.parent.messageBar())
if isinstance(self.alg, QgsProcessingModelAlgorithm):
widget_context.setModel(self.alg)
# Create widgets and put them in layouts
for param in self.alg.parameterDefinitions():
if param.flags() & QgsProcessingParameterDefinition.FlagHidden:
continue
if param.isDestination():
continue
else:
wrapper = WidgetWrapperFactory.create_wrapper(param, self.parent)
wrapper.setWidgetContext(widget_context)
wrapper.registerProcessingContextGenerator(self.context_generator)
self.wrappers[param.name()] = wrapper
# For compatibility with 3.x API, we need to check whether the wrapper is
# the deprecated WidgetWrapper class. If not, it's the newer
# QgsAbstractProcessingParameterWidgetWrapper class
# TODO QGIS 4.0 - remove
is_python_wrapper = issubclass(wrapper.__class__, WidgetWrapper)
if not is_python_wrapper:
widget = wrapper.createWrappedWidget(self.processing_context)
else:
widget = wrapper.widget
if self.in_place and param.name() in ('INPUT', 'OUTPUT'):
# don't show the input/output parameter widgets in in-place mode
# we still need to CREATE them, because other wrappers may need to interact
# with them (e.g. those parameters which need the input layer for field
# selections/crs properties/etc)
continue
if widget is not None:
if is_python_wrapper:
widget.setToolTip(param.toolTip())
if isinstance(param, QgsProcessingParameterFeatureSource):
layout = QHBoxLayout()
layout.setSpacing(6)
layout.setMargin(0)
layout.addWidget(widget)
button = QToolButton()
icon = QIcon(os.path.join(pluginPath, 'images', 'iterate.png'))
button.setIcon(icon)
button.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Expanding)
button.setToolTip(self.tr('Iterate over this layer, creating a separate output for every feature in the layer'))
button.setCheckable(True)
layout.addWidget(button)
layout.setAlignment(button, Qt.AlignTop)
self.iterateButtons[param.name()] = button
button.toggled.connect(self.buttonToggled)
widget = QWidget()
widget.setLayout(layout)
label = None
if not is_python_wrapper:
label = wrapper.createWrappedLabel()
else:
label = wrapper.label
if label is not None:
if param.flags() & QgsProcessingParameterDefinition.FlagAdvanced:
self.layoutAdvanced.addWidget(label)
else:
self.layoutMain.insertWidget(
self.layoutMain.count() - 2, label)
elif is_python_wrapper:
desc = param.description()
if isinstance(param, QgsProcessingParameterExtent):
desc += self.tr(' (xmin, xmax, ymin, ymax)')
if isinstance(param, QgsProcessingParameterPoint):
desc += self.tr(' (x, y)')
if param.flags() & QgsProcessingParameterDefinition.FlagOptional:
desc += self.tr(' [optional]')
widget.setText(desc)
if param.flags() & QgsProcessingParameterDefinition.FlagAdvanced:
self.layoutAdvanced.addWidget(widget)
else:
self.layoutMain.insertWidget(
self.layoutMain.count() - 2, widget)
for output in self.alg.destinationParameterDefinitions():
if output.flags() & QgsProcessingParameterDefinition.FlagHidden:
continue
if self.in_place and param.name() in ('INPUT', 'OUTPUT'):
continue
label = QLabel(output.description())
widget = QgsProcessingLayerOutputDestinationWidget(output, False)
widget.setWidgetContext(widget_context)
self.layoutMain.insertWidget(self.layoutMain.count() - 1, label)
self.layoutMain.insertWidget(self.layoutMain.count() - 1, widget)
if isinstance(output, (QgsProcessingParameterRasterDestination, QgsProcessingParameterFeatureSink, QgsProcessingParameterVectorDestination)):
check = QCheckBox()
check.setText(QCoreApplication.translate('ParametersPanel', 'Open output file after running algorithm'))
def skipOutputChanged(widget, checkbox, skipped):
enabled = not skipped
# Do not try to open formats that are write-only.
value = widget.value()
if value and isinstance(value, QgsProcessingOutputLayerDefinition) and isinstance(output, (
QgsProcessingParameterFeatureSink, QgsProcessingParameterVectorDestination)):
filename = value.sink.staticValue()
if filename not in ('memory:', ''):
path, ext = os.path.splitext(filename)
format = QgsVectorFileWriter.driverForExtension(ext)
drv = gdal.GetDriverByName(format)
if drv:
if drv.GetMetadataItem(gdal.DCAP_OPEN) is None:
enabled = False
checkbox.setEnabled(enabled)
checkbox.setChecked(enabled)
check.setChecked(not widget.outputIsSkipped())
check.setEnabled(not widget.outputIsSkipped())
widget.skipOutputChanged.connect(partial(skipOutputChanged, widget, check))
self.layoutMain.insertWidget(self.layoutMain.count() - 1, check)
self.checkBoxes[output.name()] = check
widget.setToolTip(param.toolTip())
self.outputWidgets[output.name()] = widget
for wrapper in list(self.wrappers.values()):
wrapper.postInitialize(list(self.wrappers.values()))
def initWidgets(self):
super().initWidgets()
widget_context = QgsProcessingParameterWidgetContext()
widget_context.setProject(QgsProject.instance())
if iface is not None:
widget_context.setMapCanvas(iface.mapCanvas())
widget_context.setBrowserModel(iface.browserModel())
widget_context.setMessageBar(self.parent().messageBar())
if isinstance(self.algorithm(), QgsProcessingModelAlgorithm):
widget_context.setModel(self.algorithm())
# Create widgets and put them in layouts
for param in self.algorithm().parameterDefinitions():
if param.flags() & QgsProcessingParameterDefinition.FlagHidden:
continue
if param.isDestination():
continue
else:
wrapper = WidgetWrapperFactory.create_wrapper(
param, self.parent())
wrapper.setWidgetContext(widget_context)
wrapper.registerProcessingContextGenerator(
self.context_generator)
self.wrappers[param.name()] = wrapper
# For compatibility with 3.x API, we need to check whether the wrapper is
# the deprecated WidgetWrapper class. If not, it's the newer
# QgsAbstractProcessingParameterWidgetWrapper class
# TODO QGIS 4.0 - remove
is_python_wrapper = issubclass(wrapper.__class__,
WidgetWrapper)
if not is_python_wrapper:
widget = wrapper.createWrappedWidget(
self.processing_context)
else:
widget = wrapper.widget
if self.in_place and param.name() in ('INPUT', 'OUTPUT'):
# don't show the input/output parameter widgets in in-place mode
# we still need to CREATE them, because other wrappers may need to interact
# with them (e.g. those parameters which need the input layer for field
# selections/crs properties/etc)
continue
if widget is not None:
if is_python_wrapper:
widget.setToolTip(param.toolTip())
label = None
if not is_python_wrapper:
label = wrapper.createWrappedLabel()
else:
label = wrapper.label
if label is not None:
self.addParameterLabel(param, label)
elif is_python_wrapper:
desc = param.description()
if isinstance(param, QgsProcessingParameterExtent):
desc += self.tr(' (xmin, xmax, ymin, ymax)')
if param.flags(
) & QgsProcessingParameterDefinition.FlagOptional:
desc += self.tr(' [optional]')
widget.setText(desc)
self.addParameterWidget(param, widget)
for output in self.algorithm().destinationParameterDefinitions():
if output.flags() & QgsProcessingParameterDefinition.FlagHidden:
continue
if self.in_place and param.name() in ('INPUT', 'OUTPUT'):
continue
label = QLabel(output.description())
widget = QgsProcessingLayerOutputDestinationWidget(output, False)
widget.setWidgetContext(widget_context)
self.addOutputLabel(label)
self.addOutputWidget(widget)
if isinstance(output, (QgsProcessingParameterRasterDestination,
QgsProcessingParameterFeatureSink,
QgsProcessingParameterVectorDestination)):
check = QCheckBox()
check.setText(
QCoreApplication.translate(
'ParametersPanel',
'Open output file after running algorithm'))
def skipOutputChanged(widget, checkbox, skipped):
enabled = not skipped
# Do not try to open formats that are write-only.
value = widget.value()
if value and isinstance(
value,
QgsProcessingOutputLayerDefinition) and isinstance(
output,
(QgsProcessingParameterFeatureSink,
QgsProcessingParameterVectorDestination)):
filename = value.sink.staticValue()
if filename not in ('memory:', ''):
path, ext = os.path.splitext(filename)
format = QgsVectorFileWriter.driverForExtension(
ext)
drv = gdal.GetDriverByName(format)
if drv:
if drv.GetMetadataItem(gdal.DCAP_OPEN) is None:
enabled = False
checkbox.setEnabled(enabled)
checkbox.setChecked(enabled)
check.setChecked(not widget.outputIsSkipped())
check.setEnabled(not widget.outputIsSkipped())
widget.skipOutputChanged.connect(
partial(skipOutputChanged, widget, check))
self.addOutputWidget(check)
self.checkBoxes[output.name()] = check
self.outputWidgets[output.name()] = widget
for wrapper in list(self.wrappers.values()):
wrapper.postInitialize(list(self.wrappers.values()))
