def setupUi(self): self.showAdvanced = False self.wrappers = {} self.algorithmItem = None self.mainLayout = QVBoxLayout() self.mainLayout.setContentsMargins(0, 0, 0, 0) self.verticalLayout = QVBoxLayout() self.bar = QgsMessageBar() self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed) self.verticalLayout.addWidget(self.bar) hLayout = QHBoxLayout() hLayout.setContentsMargins(0, 0, 0, 0) descriptionLabel = QLabel(self.tr("Description")) self.descriptionBox = QLineEdit() self.descriptionBox.setText(self._alg.displayName()) hLayout.addWidget(descriptionLabel) hLayout.addWidget(self.descriptionBox) self.verticalLayout.addLayout(hLayout) line = QFrame() line.setFrameShape(QFrame.HLine) line.setFrameShadow(QFrame.Sunken) self.verticalLayout.addWidget(line) widget_context = QgsProcessingParameterWidgetContext() widget_context.setProject(QgsProject.instance()) if iface is not None: widget_context.setMapCanvas(iface.mapCanvas()) widget_context.setActiveLayer(iface.activeLayer()) widget_context.setModel(self.model) widget_context.setModelChildAlgorithmId(self.childId) self.algorithmItem = QgsGui.instance().processingGuiRegistry().algorithmConfigurationWidget(self._alg) if self.algorithmItem: self.algorithmItem.setWidgetContext(widget_context) self.algorithmItem.registerProcessingContextGenerator(self.context_generator) if self.configuration: self.algorithmItem.setConfiguration(self.configuration) self.verticalLayout.addWidget(self.algorithmItem) for param in self._alg.parameterDefinitions(): if param.flags() & QgsProcessingParameterDefinition.FlagAdvanced: self.advancedButton = QPushButton() self.advancedButton.setText(self.tr('Show advanced parameters')) self.advancedButton.clicked.connect( self.showAdvancedParametersClicked) advancedButtonHLayout = QHBoxLayout() advancedButtonHLayout.addWidget(self.advancedButton) advancedButtonHLayout.addStretch() self.verticalLayout.addLayout(advancedButtonHLayout) break for param in self._alg.parameterDefinitions(): if param.isDestination() or param.flags() & QgsProcessingParameterDefinition.FlagHidden: continue wrapper = WidgetWrapperFactory.create_wrapper(param, self.dialog) self.wrappers[param.name()] = wrapper wrapper.setWidgetContext(widget_context) wrapper.registerProcessingContextGenerator(self.context_generator) if issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget): widget = wrapper else: widget = wrapper.widget if widget is not None: if issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget): label = wrapper.createLabel() else: tooltip = param.description() widget.setToolTip(tooltip) label = wrapper.label self.widget_labels[param.name()] = label if param.flags() & QgsProcessingParameterDefinition.FlagAdvanced: label.setVisible(self.showAdvanced) widget.setVisible(self.showAdvanced) self.verticalLayout.addWidget(label) self.verticalLayout.addWidget(widget) for output in self._alg.destinationParameterDefinitions(): if output.flags() & QgsProcessingParameterDefinition.FlagHidden: continue widget = QgsGui.processingGuiRegistry().createModelerParameterWidget(self.model, self.childId, output, self.context) widget.setDialog(self.dialog) widget.setWidgetContext(widget_context) widget.registerProcessingContextGenerator(self.context_generator) self.wrappers[output.name()] = widget item = QgsFilterLineEdit() if hasattr(item, 'setPlaceholderText'): item.setPlaceholderText(self.tr('[Enter name if this is a final result]')) label = widget.createLabel() if label is not None: self.verticalLayout.addWidget(label) self.verticalLayout.addWidget(widget) label = QLabel(' ') self.verticalLayout.addWidget(label) label = QLabel(self.tr('Parent algorithms')) self.dependenciesPanel = self.getDependenciesPanel() self.verticalLayout.addWidget(label) self.verticalLayout.addWidget(self.dependenciesPanel) self.verticalLayout.addStretch(1000) self.setPreviousValues() self.verticalLayout2 = QVBoxLayout() self.verticalLayout2.setSpacing(2) self.verticalLayout2.setMargin(0) self.paramPanel = QWidget() self.paramPanel.setLayout(self.verticalLayout) self.scrollArea = QgsScrollArea() self.scrollArea.setWidget(self.paramPanel) self.scrollArea.setWidgetResizable(True) self.scrollArea.setFrameStyle(QFrame.NoFrame) self.verticalLayout2.addWidget(self.scrollArea) w = QWidget() w.setLayout(self.verticalLayout2) self.mainLayout.addWidget(w) self.setLayout(self.mainLayout)
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()))