def postInitialize(self, wrappers): super().postInitialize(wrappers) # find wrapper of mesh layer parameter and register listener for changing its value mesh_layer_param = self.parameterDefinition().layer wrapper = next((w for w in wrappers if w.parameterDefinition().name() == mesh_layer_param), None) # if not wrapper or wrapper.parameterDefinition().type() != 'mesh': if not wrapper: raise InvalidParameterValue('Dataset parameter must be linked to QgsProcessingParameterMeshLayer') wrapper.widgetValueHasChanged.connect(self.on_change) self.on_change(wrapper)
def value(self): if self.dialogType == DIALOG_STANDARD: if self.param.datatype == dataobjects.TYPE_FILE: return self.param.setValue(self.widget.selectedoptions) else: if self.param.datatype == dataobjects.TYPE_RASTER: options = QgsProcessingUtils.compatibleRasterLayers(QgsProject.instance(), False) elif self.param.datatype == dataobjects.TYPE_VECTOR_ANY: options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [], False) else: options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [self.param.datatype], False) return [options[i] for i in self.widget.selectedoptions] elif self.dialogType == DIALOG_BATCH: return self.widget.getText() else: options = self._getOptions() values = [options[i] for i in self.widget.selectedoptions] if len(values) == 0 and not self.param.flags() & QgsProcessingParameterDefinition.FlagOptional: raise InvalidParameterValue() return values
def value(self): if self.dialogType == DIALOG_STANDARD: if self.param.datatype == dataobjects.TYPE_FILE: return self.param.setValue(self.widget.selectedoptions) else: if self.param.datatype == dataobjects.TYPE_RASTER: options = dataobjects.getRasterLayers(sorting=False) elif self.param.datatype == dataobjects.TYPE_VECTOR_ANY: options = dataobjects.getVectorLayers(sorting=False) else: options = dataobjects.getVectorLayers( [self.param.datatype], sorting=False) return [options[i] for i in self.widget.selectedoptions] elif self.dialogType == DIALOG_BATCH: return self.widget.getText() else: options = self._getOptions() values = [options[i] for i in self.widget.selectedoptions] if len(values) == 0 and not self.param.optional: raise InvalidParameterValue() return values