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d899da1ed2
Specifically, this fixes two issues 1. If a user edits a dark green output block in a model and changes the name of the output, that new name was always discarded and the only way to change it was by editing the algorithm it was attached to 2. If an output was renamed through the algorithm properties dialog, then any properties previously associated with that output (like comments, coloring, placement, default value, mandatory flag) would get reset back to their default settings
584 lines
24 KiB
Python
584 lines
24 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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ModelerParametersDialog.py
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---------------------
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Date : August 2012
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Copyright : (C) 2012 by Victor Olaya
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Email : volayaf at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Victor Olaya'
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__date__ = 'August 2012'
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__copyright__ = '(C) 2012, Victor Olaya'
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import webbrowser
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from qgis.PyQt.QtCore import Qt
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from qgis.PyQt.QtWidgets import (QDialog, QDialogButtonBox, QLabel, QLineEdit,
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QFrame, QPushButton, QSizePolicy, QVBoxLayout,
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QHBoxLayout, QWidget, QTabWidget, QTextEdit)
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from qgis.PyQt.QtGui import QColor
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from qgis.core import (Qgis,
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QgsProject,
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QgsProcessingParameterDefinition,
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QgsProcessingModelOutput,
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QgsProcessingModelChildAlgorithm,
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QgsProcessingModelChildParameterSource,
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QgsProcessingOutputDefinition)
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from qgis.gui import (QgsGui,
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QgsMessageBar,
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QgsScrollArea,
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QgsFilterLineEdit,
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QgsHelp,
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QgsProcessingContextGenerator,
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QgsProcessingModelerParameterWidget,
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QgsProcessingParameterWidgetContext,
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QgsPanelWidget,
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QgsPanelWidgetStack,
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QgsColorButton,
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QgsModelChildDependenciesWidget)
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from qgis.utils import iface
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from processing.gui.wrappers import WidgetWrapperFactory
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from processing.gui.wrappers import InvalidParameterValue
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from processing.tools.dataobjects import createContext
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from processing.gui.wrappers import WidgetWrapper
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class ModelerParametersDialog(QDialog):
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def __init__(self, alg, model, algName=None, configuration=None):
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super().__init__()
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self.setObjectName('ModelerParametersDialog')
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self.setModal(True)
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if iface is not None:
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self.setStyleSheet(iface.mainWindow().styleSheet())
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# dammit this is SUCH as mess... stupid stable API
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self._alg = alg # The algorithm to define in this dialog. It is an instance of QgsProcessingAlgorithm
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self.model = model # The model this algorithm is going to be added to. It is an instance of QgsProcessingModelAlgorithm
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self.childId = algName # The name of the algorithm in the model, in case we are editing it and not defining it for the first time
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self.configuration = configuration
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self.context = createContext()
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self.setWindowTitle(self._alg.displayName())
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self.widget = ModelerParametersWidget(alg, model, algName, configuration, context=self.context, dialog=self)
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QgsGui.enableAutoGeometryRestore(self)
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self.buttonBox = QDialogButtonBox()
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self.buttonBox.setOrientation(Qt.Horizontal)
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self.buttonBox.setStandardButtons(QDialogButtonBox.Cancel | QDialogButtonBox.Ok | QDialogButtonBox.Help)
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self.buttonBox.accepted.connect(self.okPressed)
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self.buttonBox.rejected.connect(self.reject)
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self.buttonBox.helpRequested.connect(self.openHelp)
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mainLayout = QVBoxLayout()
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mainLayout.addWidget(self.widget, 1)
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mainLayout.addWidget(self.buttonBox)
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self.setLayout(mainLayout)
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def algorithm(self):
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return self._alg
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def setComments(self, text):
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self.widget.setComments(text)
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def comments(self):
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return self.widget.comments()
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def setCommentColor(self, color):
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self.widget.setCommentColor(color)
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def commentColor(self):
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return self.widget.commentColor()
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def switchToCommentTab(self):
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self.widget.switchToCommentTab()
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def getAvailableValuesOfType(self, paramType, outTypes=[], dataTypes=[]):
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# upgrade paramType to list
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if paramType is None:
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paramType = []
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elif not isinstance(paramType, (tuple, list)):
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paramType = [paramType]
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if outTypes is None:
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outTypes = []
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elif not isinstance(outTypes, (tuple, list)):
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outTypes = [outTypes]
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return self.model.availableSourcesForChild(self.childId, [p.typeName() for p in paramType if
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issubclass(p, QgsProcessingParameterDefinition)],
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[o.typeName() for o in outTypes if
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issubclass(o, QgsProcessingOutputDefinition)], dataTypes)
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def resolveValueDescription(self, value):
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if isinstance(value, QgsProcessingModelChildParameterSource):
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if value.source() == QgsProcessingModelChildParameterSource.StaticValue:
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return value.staticValue()
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elif value.source() == QgsProcessingModelChildParameterSource.ModelParameter:
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return self.model.parameterDefinition(value.parameterName()).description()
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elif value.source() == QgsProcessingModelChildParameterSource.ChildOutput:
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alg = self.model.childAlgorithm(value.outputChildId())
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output_name = alg.algorithm().outputDefinition(value.outputName()).description()
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# see if this output has been named by the model designer -- if so, we use that friendly name
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for name, output in alg.modelOutputs().items():
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if output.childOutputName() == value.outputName():
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output_name = name
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break
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return self.tr("'{0}' from algorithm '{1}'").format(output_name, alg.description())
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return value
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def setPreviousValues(self):
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self.widget.setPreviousValues()
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def createAlgorithm(self):
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return self.widget.createAlgorithm()
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def okPressed(self):
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if self.createAlgorithm() is not None:
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self.accept()
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def openHelp(self):
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algHelp = self.widget.algorithm().helpUrl()
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if not algHelp:
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algHelp = QgsHelp.helpUrl("processing_algs/{}/{}.html#{}".format(
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self.widget.algorithm().provider().helpId(), self.algorithm().groupId(),
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"{}{}".format(self.algorithm().provider().helpId(), self.algorithm().name()))).toString()
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if algHelp not in [None, ""]:
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webbrowser.open(algHelp)
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class ModelerParametersPanelWidget(QgsPanelWidget):
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def __init__(self, alg, model, algName=None, configuration=None, dialog=None, context=None):
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super().__init__()
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self._alg = alg # The algorithm to define in this dialog. It is an instance of QgsProcessingAlgorithm
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self.model = model # The model this algorithm is going to be added to. It is an instance of QgsProcessingModelAlgorithm
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self.childId = algName # The name of the algorithm in the model, in case we are editing it and not defining it for the first time
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self.configuration = configuration
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self.context = context
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self.dialog = dialog
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self.widget_labels = {}
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self.previous_output_definitions = {}
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class ContextGenerator(QgsProcessingContextGenerator):
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def __init__(self, context):
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super().__init__()
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self.processing_context = context
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def processingContext(self):
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return self.processing_context
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self.context_generator = ContextGenerator(self.context)
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self.setupUi()
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self.params = None
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def algorithm(self):
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return self._alg
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def setupUi(self):
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self.showAdvanced = False
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self.wrappers = {}
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self.algorithmItem = None
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self.mainLayout = QVBoxLayout()
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self.mainLayout.setContentsMargins(0, 0, 0, 0)
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self.verticalLayout = QVBoxLayout()
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self.bar = QgsMessageBar()
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self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
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self.verticalLayout.addWidget(self.bar)
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hLayout = QHBoxLayout()
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hLayout.setContentsMargins(0, 0, 0, 0)
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descriptionLabel = QLabel(self.tr("Description"))
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self.descriptionBox = QLineEdit()
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self.descriptionBox.setText(self._alg.displayName())
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hLayout.addWidget(descriptionLabel)
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hLayout.addWidget(self.descriptionBox)
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self.verticalLayout.addLayout(hLayout)
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line = QFrame()
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line.setFrameShape(QFrame.HLine)
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line.setFrameShadow(QFrame.Sunken)
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self.verticalLayout.addWidget(line)
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widget_context = QgsProcessingParameterWidgetContext()
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widget_context.setProject(QgsProject.instance())
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if iface is not None:
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widget_context.setMapCanvas(iface.mapCanvas())
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widget_context.setActiveLayer(iface.activeLayer())
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widget_context.setModel(self.model)
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widget_context.setModelChildAlgorithmId(self.childId)
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self.algorithmItem = QgsGui.instance().processingGuiRegistry().algorithmConfigurationWidget(self._alg)
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if self.algorithmItem:
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self.algorithmItem.setWidgetContext(widget_context)
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self.algorithmItem.registerProcessingContextGenerator(self.context_generator)
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if self.configuration:
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self.algorithmItem.setConfiguration(self.configuration)
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self.verticalLayout.addWidget(self.algorithmItem)
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for param in self._alg.parameterDefinitions():
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if param.flags() & QgsProcessingParameterDefinition.FlagAdvanced:
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self.advancedButton = QPushButton()
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self.advancedButton.setText(self.tr('Show advanced parameters'))
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self.advancedButton.clicked.connect(
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self.showAdvancedParametersClicked)
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advancedButtonHLayout = QHBoxLayout()
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advancedButtonHLayout.addWidget(self.advancedButton)
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advancedButtonHLayout.addStretch()
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self.verticalLayout.addLayout(advancedButtonHLayout)
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break
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for param in self._alg.parameterDefinitions():
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if param.isDestination() or param.flags() & QgsProcessingParameterDefinition.FlagHidden:
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continue
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wrapper = WidgetWrapperFactory.create_wrapper(param, self.dialog)
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self.wrappers[param.name()] = wrapper
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wrapper.setWidgetContext(widget_context)
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wrapper.registerProcessingContextGenerator(self.context_generator)
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if issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget):
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widget = wrapper
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else:
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widget = wrapper.widget
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if widget is not None:
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if issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget):
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label = wrapper.createLabel()
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else:
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tooltip = param.description()
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widget.setToolTip(tooltip)
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label = wrapper.label
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self.widget_labels[param.name()] = label
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if param.flags() & QgsProcessingParameterDefinition.FlagAdvanced:
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label.setVisible(self.showAdvanced)
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widget.setVisible(self.showAdvanced)
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self.verticalLayout.addWidget(label)
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self.verticalLayout.addWidget(widget)
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for output in self._alg.destinationParameterDefinitions():
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if output.flags() & QgsProcessingParameterDefinition.FlagHidden:
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continue
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widget = QgsGui.processingGuiRegistry().createModelerParameterWidget(self.model,
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self.childId,
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output,
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self.context)
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widget.setDialog(self.dialog)
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widget.setWidgetContext(widget_context)
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widget.registerProcessingContextGenerator(self.context_generator)
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self.wrappers[output.name()] = widget
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item = QgsFilterLineEdit()
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if hasattr(item, 'setPlaceholderText'):
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item.setPlaceholderText(self.tr('[Enter name if this is a final result]'))
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label = widget.createLabel()
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if label is not None:
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self.verticalLayout.addWidget(label)
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self.verticalLayout.addWidget(widget)
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label = QLabel(' ')
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self.verticalLayout.addWidget(label)
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label = QLabel(self.tr('Dependencies'))
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self.dependencies_panel = QgsModelChildDependenciesWidget(self, self.model, self.childId)
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self.verticalLayout.addWidget(label)
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self.verticalLayout.addWidget(self.dependencies_panel)
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self.verticalLayout.addStretch(1000)
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self.setPreviousValues()
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self.verticalLayout2 = QVBoxLayout()
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self.verticalLayout2.setSpacing(2)
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self.verticalLayout2.setMargin(0)
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self.paramPanel = QWidget()
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self.paramPanel.setLayout(self.verticalLayout)
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self.scrollArea = QgsScrollArea()
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self.scrollArea.setWidget(self.paramPanel)
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self.scrollArea.setWidgetResizable(True)
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self.scrollArea.setFrameStyle(QFrame.NoFrame)
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self.verticalLayout2.addWidget(self.scrollArea)
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w = QWidget()
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w.setLayout(self.verticalLayout2)
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self.mainLayout.addWidget(w)
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self.setLayout(self.mainLayout)
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def showAdvancedParametersClicked(self):
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self.showAdvanced = not self.showAdvanced
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if self.showAdvanced:
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self.advancedButton.setText(self.tr('Hide advanced parameters'))
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else:
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self.advancedButton.setText(self.tr('Show advanced parameters'))
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for param in self._alg.parameterDefinitions():
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if param.flags() & QgsProcessingParameterDefinition.FlagAdvanced:
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wrapper = self.wrappers[param.name()]
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if issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget):
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wrapper.setVisible(self.showAdvanced)
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else:
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wrapper.widget.setVisible(self.showAdvanced)
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self.widget_labels[param.name()].setVisible(self.showAdvanced)
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def setPreviousValues(self):
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if self.childId is not None:
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alg = self.model.childAlgorithm(self.childId)
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self.descriptionBox.setText(alg.description())
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for param in alg.algorithm().parameterDefinitions():
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if param.isDestination() or param.flags() & QgsProcessingParameterDefinition.FlagHidden:
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continue
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value = None
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if param.name() in alg.parameterSources():
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value = alg.parameterSources()[param.name()]
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if isinstance(value, list) and len(value) == 1:
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value = value[0]
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elif isinstance(value, list) and len(value) == 0:
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value = None
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wrapper = self.wrappers[param.name()]
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if issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget):
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if value is None:
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value = QgsProcessingModelChildParameterSource.fromStaticValue(param.defaultValue())
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wrapper.setWidgetValue(value)
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else:
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if value is None:
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value = param.defaultValue()
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if isinstance(value,
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QgsProcessingModelChildParameterSource) and value.source() == QgsProcessingModelChildParameterSource.StaticValue:
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value = value.staticValue()
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wrapper.setValue(value)
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for output in self.algorithm().destinationParameterDefinitions():
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if output.flags() & QgsProcessingParameterDefinition.FlagHidden:
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continue
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model_output_name = None
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for name, out in alg.modelOutputs().items():
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if out.childId() == self.childId and out.childOutputName() == output.name():
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# this destination parameter is linked to a model output
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model_output_name = out.name()
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self.previous_output_definitions[output.name()] = out
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break
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value = None
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if model_output_name is None and output.name() in alg.parameterSources():
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value = alg.parameterSources()[output.name()]
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if isinstance(value, list) and len(value) == 1:
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value = value[0]
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elif isinstance(value, list) and len(value) == 0:
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value = None
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wrapper = self.wrappers[output.name()]
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if model_output_name is not None:
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wrapper.setToModelOutput(model_output_name)
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elif value is not None or output.defaultValue() is not None:
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if value is None:
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value = QgsProcessingModelChildParameterSource.fromStaticValue(output.defaultValue())
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wrapper.setWidgetValue(value)
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self.dependencies_panel.setValue(alg.dependencies())
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def createAlgorithm(self):
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alg = QgsProcessingModelChildAlgorithm(self._alg.id())
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if not self.childId:
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alg.generateChildId(self.model)
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else:
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alg.setChildId(self.childId)
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alg.setDescription(self.descriptionBox.text())
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if self.algorithmItem:
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alg.setConfiguration(self.algorithmItem.configuration())
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self._alg = alg.algorithm().create(self.algorithmItem.configuration())
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for param in self._alg.parameterDefinitions():
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if param.isDestination() or param.flags() & QgsProcessingParameterDefinition.FlagHidden:
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continue
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try:
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wrapper = self.wrappers[param.name()]
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if issubclass(wrapper.__class__, WidgetWrapper):
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val = wrapper.value()
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elif issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget):
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val = wrapper.value()
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else:
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val = wrapper.parameterValue()
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except InvalidParameterValue:
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val = None
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if isinstance(val, QgsProcessingModelChildParameterSource):
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val = [val]
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elif not (isinstance(val, list) and all(
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[isinstance(subval, QgsProcessingModelChildParameterSource) for subval in val])):
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val = [QgsProcessingModelChildParameterSource.fromStaticValue(val)]
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valid = True
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for subval in val:
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if (isinstance(subval, QgsProcessingModelChildParameterSource)
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and subval.source() == QgsProcessingModelChildParameterSource.StaticValue
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and not param.checkValueIsAcceptable(subval.staticValue())) \
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or (subval is None and not param.flags() & QgsProcessingParameterDefinition.FlagOptional):
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valid = False
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break
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if valid:
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alg.addParameterSources(param.name(), val)
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outputs = {}
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for output in self._alg.destinationParameterDefinitions():
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if not output.flags() & QgsProcessingParameterDefinition.FlagHidden:
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wrapper = self.wrappers[output.name()]
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if wrapper.isModelOutput():
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name = wrapper.modelOutputName()
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if name:
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# if there was a previous output definition already for this output, we start with it,
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# otherwise we'll lose any existing output comments, coloring, position, etc
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model_output = self.previous_output_definitions.get(output.name(), QgsProcessingModelOutput(name, name))
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model_output.setDescription(name)
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model_output.setChildId(alg.childId())
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model_output.setChildOutputName(output.name())
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outputs[name] = model_output
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else:
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val = wrapper.value()
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if isinstance(val, QgsProcessingModelChildParameterSource):
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val = [val]
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alg.addParameterSources(output.name(), val)
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if output.flags() & QgsProcessingParameterDefinition.FlagIsModelOutput:
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if output.name() not in outputs:
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model_output = QgsProcessingModelOutput(output.name(), output.name())
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model_output.setChildId(alg.childId())
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model_output.setChildOutputName(output.name())
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outputs[output.name()] = model_output
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alg.setModelOutputs(outputs)
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alg.setDependencies(self.dependencies_panel.value())
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return alg
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class ModelerParametersWidget(QWidget):
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def __init__(self, alg, model, algName=None, configuration=None, dialog=None, context=None):
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super().__init__()
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self._alg = alg # The algorithm to define in this dialog. It is an instance of QgsProcessingAlgorithm
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self.model = model # The model this algorithm is going to be added to. It is an instance of QgsProcessingModelAlgorithm
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self.childId = algName # The name of the algorithm in the model, in case we are editing it and not defining it for the first time
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self.configuration = configuration
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self.context = context
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self.dialog = dialog
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self.widget = ModelerParametersPanelWidget(alg, model, algName, configuration, dialog, context)
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class ContextGenerator(QgsProcessingContextGenerator):
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def __init__(self, context):
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super().__init__()
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self.processing_context = context
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|
|
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def processingContext(self):
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return self.processing_context
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|
|
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self.context_generator = ContextGenerator(self.context)
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|
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self.setupUi()
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self.params = None
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|
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def algorithm(self):
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return self._alg
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|
|
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def switchToCommentTab(self):
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self.tab.setCurrentIndex(1)
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self.commentEdit.setFocus()
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self.commentEdit.selectAll()
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|
|
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def setupUi(self):
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self.mainLayout = QVBoxLayout()
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self.mainLayout.setContentsMargins(0, 0, 0, 0)
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self.tab = QTabWidget()
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self.mainLayout.addWidget(self.tab)
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|
|
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self.param_widget = QgsPanelWidgetStack()
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self.widget.setDockMode(True)
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|
self.param_widget.setMainPanel(self.widget)
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|
|
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self.tab.addTab(self.param_widget, self.tr('Properties'))
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|
|
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self.commentLayout = QVBoxLayout()
|
|
self.commentEdit = QTextEdit()
|
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self.commentEdit.setAcceptRichText(False)
|
|
self.commentLayout.addWidget(self.commentEdit, 1)
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|
|
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hl = QHBoxLayout()
|
|
hl.setContentsMargins(0, 0, 0, 0)
|
|
hl.addWidget(QLabel(self.tr('Color')))
|
|
self.comment_color_button = QgsColorButton()
|
|
self.comment_color_button.setAllowOpacity(True)
|
|
self.comment_color_button.setWindowTitle(self.tr('Comment Color'))
|
|
self.comment_color_button.setShowNull(True, self.tr('Default'))
|
|
hl.addWidget(self.comment_color_button)
|
|
self.commentLayout.addLayout(hl)
|
|
|
|
w2 = QWidget()
|
|
w2.setLayout(self.commentLayout)
|
|
self.tab.addTab(w2, self.tr('Comments'))
|
|
|
|
self.setLayout(self.mainLayout)
|
|
|
|
def setComments(self, text):
|
|
self.commentEdit.setPlainText(text)
|
|
|
|
def comments(self):
|
|
return self.commentEdit.toPlainText()
|
|
|
|
def setCommentColor(self, color):
|
|
if color.isValid():
|
|
self.comment_color_button.setColor(color)
|
|
else:
|
|
self.comment_color_button.setToNull()
|
|
|
|
def commentColor(self):
|
|
return self.comment_color_button.color() if not self.comment_color_button.isNull() else QColor()
|
|
|
|
def setPreviousValues(self):
|
|
self.widget.setPreviousValues()
|
|
|
|
def createAlgorithm(self):
|
|
alg = self.widget.createAlgorithm()
|
|
if alg:
|
|
alg.comment().setDescription(self.comments())
|
|
alg.comment().setColor(self.commentColor())
|
|
return alg
|