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wrappers.py
executable file
·1739 lines (1501 loc) · 71 KB
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wrappers.py
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# -*- coding: utf-8 -*-
"""
***************************************************************************
wrappers.py - Standard parameters widget wrappers
---------------------
Date : May 2016
Copyright : (C) 2016 by Arnaud Morvan, Victor Olaya
Email : arnaud dot morvan at camptocamp dot com
volayaf at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Arnaud Morvan'
__date__ = 'May 2016'
__copyright__ = '(C) 2016, Arnaud Morvan'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import locale
import os
from functools import cmp_to_key
from inspect import isclass
from copy import deepcopy
from qgis.core import (
QgsApplication,
QgsUnitTypes,
QgsCoordinateReferenceSystem,
QgsExpression,
QgsExpressionContextGenerator,
QgsFieldProxyModel,
QgsMapLayerProxyModel,
QgsWkbTypes,
QgsSettings,
QgsProject,
QgsMapLayer,
QgsProcessing,
QgsProcessingUtils,
QgsProcessingParameterDefinition,
QgsProcessingParameterBoolean,
QgsProcessingParameterCrs,
QgsProcessingParameterExtent,
QgsProcessingParameterPoint,
QgsProcessingParameterFile,
QgsProcessingParameterMultipleLayers,
QgsProcessingParameterNumber,
QgsProcessingParameterDistance,
QgsProcessingParameterRasterLayer,
QgsProcessingParameterEnum,
QgsProcessingParameterString,
QgsProcessingParameterExpression,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterField,
QgsProcessingParameterFeatureSource,
QgsProcessingParameterMapLayer,
QgsProcessingParameterBand,
QgsProcessingParameterMatrix,
QgsProcessingParameterDistance,
QgsProcessingFeatureSourceDefinition,
QgsProcessingOutputRasterLayer,
QgsProcessingOutputVectorLayer,
QgsProcessingOutputMapLayer,
QgsProcessingOutputMultipleLayers,
QgsProcessingOutputFile,
QgsProcessingOutputString,
QgsProcessingOutputNumber,
QgsProcessingModelChildParameterSource,
QgsProcessingModelAlgorithm,
NULL)
from qgis.PyQt.QtWidgets import (
QCheckBox,
QComboBox,
QLabel,
QDialog,
QFileDialog,
QHBoxLayout,
QVBoxLayout,
QLineEdit,
QPlainTextEdit,
QToolButton,
QWidget,
)
from qgis.gui import (
QgsExpressionLineEdit,
QgsExpressionBuilderDialog,
QgsFieldComboBox,
QgsFieldExpressionWidget,
QgsProjectionSelectionDialog,
QgsMapLayerComboBox,
QgsProjectionSelectionWidget,
QgsRasterBandComboBox,
)
from qgis.PyQt.QtCore import pyqtSignal, QObject, QVariant, Qt
from qgis.utils import iface
from processing.core.ProcessingConfig import ProcessingConfig
from processing.modeler.MultilineTextPanel import MultilineTextPanel
from processing.gui.NumberInputPanel import NumberInputPanel, ModelerNumberInputPanel, DistanceInputPanel
from processing.gui.RangePanel import RangePanel
from processing.gui.PointSelectionPanel import PointSelectionPanel
from processing.gui.FileSelectionPanel import FileSelectionPanel
from processing.gui.CheckboxesPanel import CheckboxesPanel
from processing.gui.MultipleInputPanel import MultipleInputPanel
from processing.gui.BatchInputSelectionPanel import BatchInputSelectionPanel
from processing.gui.FixedTablePanel import FixedTablePanel
from processing.gui.ExtentSelectionPanel import ExtentSelectionPanel
from processing.gui.ParameterGuiUtils import getFileFilter
from processing.tools import dataobjects
DIALOG_STANDARD = 'standard'
DIALOG_BATCH = 'batch'
DIALOG_MODELER = 'modeler'
class InvalidParameterValue(Exception):
pass
dialogTypes = {"AlgorithmDialog": DIALOG_STANDARD,
"ModelerParametersDialog": DIALOG_MODELER,
"BatchAlgorithmDialog": DIALOG_BATCH}
def getExtendedLayerName(layer):
authid = layer.crs().authid()
if ProcessingConfig.getSetting(ProcessingConfig.SHOW_CRS_DEF) and authid is not None:
return u'{} [{}]'.format(layer.name(), authid)
else:
return layer.name()
class WidgetWrapper(QObject):
widgetValueHasChanged = pyqtSignal(object)
NOT_SET_OPTION = '~~~~!!!!NOT SET!!!!~~~~~~~'
def __init__(self, param, dialog, row=0, col=0, **kwargs):
QObject.__init__(self)
self.param = param
self.dialog = dialog
self.row = row
self.col = col
self.dialogType = dialogTypes.get(dialog.__class__.__name__, DIALOG_STANDARD)
self.widget = self.createWidget(**kwargs)
self.label = self.createLabel()
if param.defaultValue() is not None:
self.setValue(param.defaultValue())
def comboValue(self, validator=None, combobox=None):
if combobox is None:
combobox = self.widget
idx = combobox.findText(combobox.currentText())
if idx < 0:
v = combobox.currentText().strip()
if validator is not None and not validator(v):
raise InvalidParameterValue()
return v
if combobox.currentData() == self.NOT_SET_OPTION:
return None
elif combobox.currentData() is not None:
return combobox.currentData()
else:
return combobox.currentText()
def createWidget(self, **kwargs):
pass
def createLabel(self):
if self.dialogType == DIALOG_BATCH:
return None
desc = self.param.description()
if isinstance(self.param, QgsProcessingParameterExtent):
desc += self.tr(' (xmin, xmax, ymin, ymax)')
if isinstance(self.param, QgsProcessingParameterPoint):
desc += self.tr(' (x, y)')
if self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
desc += self.tr(' [optional]')
label = QLabel(desc)
label.setToolTip(self.param.name())
return label
def setValue(self, value):
pass
def setComboValue(self, value, combobox=None):
if combobox is None:
combobox = self.widget
if isinstance(value, list):
if value:
value = value[0]
else:
value = None
values = [combobox.itemData(i) for i in range(combobox.count())]
try:
idx = values.index(value)
combobox.setCurrentIndex(idx)
return
except ValueError:
pass
if combobox.isEditable():
if value is not None:
combobox.setEditText(str(value))
else:
combobox.setCurrentIndex(0)
def value(self):
pass
def postInitialize(self, wrappers):
pass
def refresh(self):
pass
def getFileName(self, initial_value=''):
"""Shows a file open dialog"""
settings = QgsSettings()
if os.path.isdir(initial_value):
path = initial_value
elif os.path.isdir(os.path.dirname(initial_value)):
path = os.path.dirname(initial_value)
elif settings.contains('/Processing/LastInputPath'):
path = str(settings.value('/Processing/LastInputPath'))
else:
path = ''
# TODO: should use selectedFilter argument for default file format
filename, selected_filter = QFileDialog.getOpenFileName(self.widget, self.tr('Select File'),
path, getFileFilter(self.param))
if filename:
settings.setValue('/Processing/LastInputPath',
os.path.dirname(str(filename)))
return filename, selected_filter
class BasicWidgetWrapper(WidgetWrapper):
def createWidget(self):
return QLineEdit()
def setValue(self, value):
self.widget.setText(value)
def value(self):
return self.widget.text()
class BooleanWidgetWrapper(WidgetWrapper):
def createLabel(self):
if self.dialogType == DIALOG_STANDARD:
return None
else:
return super().createLabel()
def createWidget(self):
if self.dialogType == DIALOG_STANDARD:
return QCheckBox()
elif self.dialogType == DIALOG_BATCH:
widget = QComboBox()
widget.addItem(self.tr('Yes'), True)
widget.addItem(self.tr('No'), False)
return widget
else:
widget = QComboBox()
widget.addItem(self.tr('Yes'), True)
widget.addItem(self.tr('No'), False)
bools = self.dialog.getAvailableValuesOfType(QgsProcessingParameterBoolean, None)
for b in bools:
widget.addItem(self.dialog.resolveValueDescription(b), b)
return widget
def setValue(self, value):
if value is None or value == NULL:
return
if self.dialogType == DIALOG_STANDARD:
self.widget.setChecked(value)
else:
self.setComboValue(value)
def value(self):
if self.dialogType == DIALOG_STANDARD:
return self.widget.isChecked()
else:
return self.comboValue()
class CrsWidgetWrapper(WidgetWrapper):
def createWidget(self):
if self.dialogType == DIALOG_MODELER:
self.combo = QComboBox()
widget = QWidget()
layout = QHBoxLayout()
layout.setMargin(0)
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(1)
layout.addWidget(self.combo)
btn = QToolButton()
btn.setIcon(QgsApplication.getThemeIcon("mActionSetProjection.svg"))
btn.setToolTip(self.tr("Select CRS"))
btn.clicked.connect(self.selectProjection)
layout.addWidget(btn)
widget.setLayout(layout)
self.combo.setEditable(True)
crss = self.dialog.getAvailableValuesOfType((QgsProcessingParameterCrs, QgsProcessingParameterString), QgsProcessingOutputString)
for crs in crss:
self.combo.addItem(self.dialog.resolveValueDescription(crs), crs)
layers = self.dialog.getAvailableValuesOfType([QgsProcessingParameterRasterLayer,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterFeatureSource],
[QgsProcessingOutputVectorLayer,
QgsProcessingOutputRasterLayer,
QgsProcessingOutputMapLayer])
for l in layers:
self.combo.addItem("Crs of layer " + self.dialog.resolveValueDescription(l), l)
if self.param.defaultValue():
self.combo.setEditText(self.param.defaultValue())
return widget
else:
widget = QgsProjectionSelectionWidget()
if self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
widget.setOptionVisible(QgsProjectionSelectionWidget.CrsNotSet, True)
if self.param.defaultValue():
if self.param.defaultValue() == 'ProjectCrs':
crs = QgsProject.instance().crs()
else:
crs = QgsCoordinateReferenceSystem(self.param.defaultValue())
widget.setCrs(crs)
else:
widget.setOptionVisible(QgsProjectionSelectionWidget.CrsNotSet, True)
widget.crsChanged.connect(lambda: self.widgetValueHasChanged.emit(self))
return widget
def selectProjection(self):
dialog = QgsProjectionSelectionDialog(self.widget)
current_crs = QgsCoordinateReferenceSystem(self.combo.currentText())
if current_crs.isValid():
dialog.setCrs(current_crs)
if dialog.exec_():
self.setValue(dialog.crs().authid())
def setValue(self, value):
if value is None or value == NULL:
return
if self.dialogType == DIALOG_MODELER:
self.setComboValue(value, self.combo)
elif value == 'ProjectCrs':
self.widget.setCrs(QgsProject.instance().crs())
else:
self.widget.setCrs(QgsCoordinateReferenceSystem(value))
def value(self):
if self.dialogType == DIALOG_MODELER:
return self.comboValue(combobox=self.combo)
else:
crs = self.widget.crs()
if crs.isValid():
return self.widget.crs().authid()
else:
return None
class ExtentWidgetWrapper(WidgetWrapper):
USE_MIN_COVERING_EXTENT = "[Use min covering extent]"
def createWidget(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
return ExtentSelectionPanel(self.dialog, self.param)
else:
widget = QComboBox()
widget.setEditable(True)
extents = self.dialog.getAvailableValuesOfType(QgsProcessingParameterExtent, (QgsProcessingOutputString))
if self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
widget.addItem(self.USE_MIN_COVERING_EXTENT, None)
layers = self.dialog.getAvailableValuesOfType([QgsProcessingParameterFeatureSource,
QgsProcessingParameterRasterLayer,
QgsProcessingParameterVectorLayer],
[QgsProcessingOutputRasterLayer,
QgsProcessingOutputVectorLayer,
QgsProcessingOutputMapLayer])
for ex in extents:
widget.addItem(self.dialog.resolveValueDescription(ex), ex)
for l in layers:
widget.addItem("Extent of " + self.dialog.resolveValueDescription(l), l)
if not self.param.defaultValue():
widget.setEditText(self.param.defaultValue())
return widget
def setValue(self, value):
if value is None or value == NULL:
return
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
self.widget.setExtentFromString(value)
else:
self.setComboValue(value)
def value(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
return self.widget.getValue()
else:
idx = self.widget.findText(self.widget.currentText())
if idx < 0:
s = str(self.widget.currentText()).strip()
if s:
try:
tokens = s.split(',')
if len(tokens) != 4:
raise InvalidParameterValue()
for token in tokens:
float(token)
except:
raise InvalidParameterValue()
elif self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
s = None
else:
raise InvalidParameterValue()
return s
else:
return self.widget.currentData()
class PointWidgetWrapper(WidgetWrapper):
def createWidget(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
return PointSelectionPanel(self.dialog, self.param.defaultValue())
else:
item = QComboBox()
item.setEditable(True)
points = self.dialog.getAvailableValuesOfType((QgsProcessingParameterPoint, QgsProcessingParameterString), (QgsProcessingOutputString))
for p in points:
item.addItem(self.dialog.resolveValueDescription(p), p)
item.setEditText(str(self.param.defaultValue()))
return item
def setValue(self, value):
if value is None or value == NULL:
return
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
self.widget.setPointFromString(value)
else:
self.setComboValue(value)
def value(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
return self.widget.getValue()
else:
idx = self.widget.findText(self.widget.currentText())
if idx < 0:
s = str(self.widget.currentText()).strip()
if s:
try:
tokens = s.split(',')
if len(tokens) != 2:
raise InvalidParameterValue()
for token in tokens:
float(token)
except:
raise InvalidParameterValue()
elif self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
s = None
else:
raise InvalidParameterValue()
return s
else:
return self.widget.currentData()
class FileWidgetWrapper(WidgetWrapper):
def createWidget(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
return FileSelectionPanel(self.param.behavior() == QgsProcessingParameterFile.Folder,
self.param.extension())
else:
self.combo = QComboBox()
self.combo.setEditable(True)
files = self.dialog.getAvailableValuesOfType(QgsProcessingParameterFile, (QgsProcessingOutputRasterLayer, QgsProcessingOutputVectorLayer, QgsProcessingOutputMapLayer, QgsProcessingOutputFile, QgsProcessingOutputString))
for f in files:
self.combo.addItem(self.dialog.resolveValueDescription(f), f)
if self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
self.combo.setEditText("")
widget = QWidget()
layout = QHBoxLayout()
layout.setMargin(0)
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(6)
layout.addWidget(self.combo)
btn = QToolButton()
btn.setText('…')
btn.setToolTip(self.tr("Select file"))
btn.clicked.connect(self.selectFile)
layout.addWidget(btn)
widget.setLayout(layout)
return widget
def selectFile(self):
settings = QgsSettings()
if os.path.isdir(os.path.dirname(self.combo.currentText())):
path = os.path.dirname(self.combo.currentText())
if settings.contains('/Processing/LastInputPath'):
path = settings.value('/Processing/LastInputPath')
else:
path = ''
if self.param.extension():
filter = self.tr('{} files').format(
self.param.extension().upper()) + ' (*.' + self.param.extension() + self.tr(
');;All files (*.*)')
else:
filter = self.tr('All files (*.*)')
filename, selected_filter = QFileDialog.getOpenFileName(self.widget,
self.tr('Select File'), path,
filter)
if filename:
self.combo.setEditText(filename)
def setValue(self, value):
if value is None or value == NULL:
return
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
self.widget.setText(value)
else:
self.setComboValue(value, combobox=self.combo)
def value(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
return self.widget.getValue()
else:
return self.comboValue(combobox=self.combo)
class FixedTableWidgetWrapper(WidgetWrapper):
def createWidget(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
return FixedTablePanel(self.param)
else:
self.combobox = QComboBox()
values = self.dialog.getAvailableValuesOfType(QgsProcessingParameterMatrix)
for v in values:
self.combobox.addItem(self.dialog.resolveValueDescription(v), v)
return self.combobox
def setValue(self, value):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
self.widget.setValue(value)
else:
self.setComboValue(value, combobox=self.combobox)
def value(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
return self.widget.table
else:
return self.comboValue(combobox=self.combobox)
class MultipleLayerWidgetWrapper(WidgetWrapper):
def _getOptions(self):
if self.param.layerType() == QgsProcessing.TypeVectorAnyGeometry:
options = self.dialog.getAvailableValuesOfType((QgsProcessingParameterFeatureSource,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterMultipleLayers),
[QgsProcessingOutputVectorLayer,
QgsProcessingOutputMapLayer,
QgsProcessingOutputMultipleLayers])
elif self.param.layerType() == QgsProcessing.TypeVector:
options = self.dialog.getAvailableValuesOfType((QgsProcessingParameterFeatureSource,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterMultipleLayers),
[QgsProcessingOutputVectorLayer,
QgsProcessingOutputMapLayer,
QgsProcessingOutputMultipleLayers],
[QgsProcessing.TypeVector])
elif self.param.layerType() == QgsProcessing.TypeVectorPoint:
options = self.dialog.getAvailableValuesOfType((QgsProcessingParameterFeatureSource,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterMultipleLayers),
[QgsProcessingOutputVectorLayer,
QgsProcessingOutputMapLayer,
QgsProcessingOutputMultipleLayers],
[QgsProcessing.TypeVectorPoint,
QgsProcessing.TypeVectorAnyGeometry])
elif self.param.layerType() == QgsProcessing.TypeVectorLine:
options = self.dialog.getAvailableValuesOfType((QgsProcessingParameterFeatureSource,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterMultipleLayers),
[QgsProcessingOutputVectorLayer,
QgsProcessingOutputMapLayer,
QgsProcessingOutputMultipleLayers],
[QgsProcessing.TypeVectorLine,
QgsProcessing.TypeVectorAnyGeometry])
elif self.param.layerType() == QgsProcessing.TypeVectorPolygon:
options = self.dialog.getAvailableValuesOfType((QgsProcessingParameterFeatureSource,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterMultipleLayers),
[QgsProcessingOutputVectorLayer,
QgsProcessingOutputMapLayer,
QgsProcessingOutputMultipleLayers],
[QgsProcessing.TypeVectorPolygon,
QgsProcessing.TypeVectorAnyGeometry])
elif self.param.layerType() == QgsProcessing.TypeRaster:
options = self.dialog.getAvailableValuesOfType(
(QgsProcessingParameterRasterLayer, QgsProcessingParameterMultipleLayers),
[QgsProcessingOutputRasterLayer,
QgsProcessingOutputMapLayer,
QgsProcessingOutputMultipleLayers])
elif self.param.layerType() == QgsProcessing.TypeVector:
options = self.dialog.getAvailableValuesOfType((QgsProcessingParameterFeatureSource,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterMultipleLayers),
[QgsProcessingOutputVectorLayer,
QgsProcessingOutputMultipleLayers])
else:
options = self.dialog.getAvailableValuesOfType(QgsProcessingParameterFile, QgsProcessingOutputFile)
options = sorted(options, key=lambda opt: self.dialog.resolveValueDescription(opt))
return options
def createWidget(self):
if self.dialogType == DIALOG_STANDARD:
if self.param.layerType() == QgsProcessing.TypeFile:
return MultipleInputPanel(datatype=QgsProcessing.TypeFile)
else:
if self.param.layerType() == QgsProcessing.TypeRaster:
options = QgsProcessingUtils.compatibleRasterLayers(QgsProject.instance(), False)
elif self.param.layerType() in (QgsProcessing.TypeVectorAnyGeometry, QgsProcessing.TypeVector):
options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [], False)
elif self.param.layerType() == QgsProcessing.TypeMapLayer:
options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [], False)
options.extend(QgsProcessingUtils.compatibleRasterLayers(QgsProject.instance(), False))
else:
options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [self.param.layerType()],
False)
opts = [getExtendedLayerName(opt) for opt in options]
return MultipleInputPanel(opts, datatype=self.param.layerType())
elif self.dialogType == DIALOG_BATCH:
widget = BatchInputSelectionPanel(self.param, self.row, self.col, self.dialog)
widget.valueChanged.connect(lambda: self.widgetValueHasChanged.emit(self))
return widget
else:
options = [self.dialog.resolveValueDescription(opt) for opt in self._getOptions()]
return MultipleInputPanel(options, datatype=self.param.layerType())
def refresh(self):
if self.param.layerType() != QgsProcessing.TypeFile:
if self.param.layerType() == QgsProcessing.TypeRaster:
options = QgsProcessingUtils.compatibleRasterLayers(QgsProject.instance(), False)
elif self.param.layerType() in (QgsProcessing.TypeVectorAnyGeometry, QgsProcessing.TypeVector):
options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [], False)
elif self.param.layerType() == QgsProcessing.TypeMapLayer:
options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [], False)
options.extend(QgsProcessingUtils.compatibleRasterLayers(QgsProject.instance(), False))
else:
options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [self.param.layerType()],
False)
opts = [getExtendedLayerName(opt) for opt in options]
self.widget.updateForOptions(opts)
def setValue(self, value):
if value is None or value == NULL:
return
if self.dialogType == DIALOG_STANDARD:
pass # TODO
elif self.dialogType == DIALOG_BATCH:
return self.widget.setText(value)
else:
options = self._getOptions()
if not isinstance(value, (tuple, list)):
value = [value]
selected_options = []
for sel in value:
if sel in options:
selected_options.append(options.index(sel))
elif isinstance(sel, QgsProcessingModelChildParameterSource):
selected_options.append(sel.staticValue())
else:
selected_options.append(sel)
self.widget.setSelectedItems(selected_options)
def value(self):
if self.dialogType == DIALOG_STANDARD:
if self.param.layerType() == QgsProcessing.TypeFile:
return self.param.setValue(self.widget.selectedoptions)
else:
if self.param.layerType() == QgsProcessing.TypeRaster:
options = QgsProcessingUtils.compatibleRasterLayers(QgsProject.instance(), False)
elif self.param.layerType() in (QgsProcessing.TypeVectorAnyGeometry, QgsProcessing.TypeVector):
options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [], False)
elif self.param.layerType() == QgsProcessing.TypeMapLayer:
options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [], False)
options.extend(QgsProcessingUtils.compatibleRasterLayers(QgsProject.instance(), False))
else:
options = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance(), [self.param.layerType()],
False)
return [options[i] if isinstance(i, int) else i for i in self.widget.selectedoptions]
elif self.dialogType == DIALOG_BATCH:
return self.widget.getText()
else:
options = self._getOptions()
values = [options[i] if isinstance(i, int) else QgsProcessingModelChildParameterSource.fromStaticValue(i)
for i in self.widget.selectedoptions]
if len(values) == 0 and not self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
raise InvalidParameterValue()
return values
class NumberWidgetWrapper(WidgetWrapper):
def createWidget(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
widget = NumberInputPanel(self.param)
widget.hasChanged.connect(lambda: self.widgetValueHasChanged.emit(self))
return widget
else:
return ModelerNumberInputPanel(self.param, self.dialog)
def setValue(self, value):
if value is None or value == NULL:
return
self.widget.setValue(value)
def value(self):
return self.widget.getValue()
def postInitialize(self, wrappers):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH) and self.param.isDynamic():
for wrapper in wrappers:
if wrapper.param.name() == self.param.dynamicLayerParameterName():
self.widget.setDynamicLayer(wrapper.value())
wrapper.widgetValueHasChanged.connect(self.parentLayerChanged)
break
def parentLayerChanged(self, wrapper):
self.widget.setDynamicLayer(wrapper.value())
class DistanceWidgetWrapper(WidgetWrapper):
def createWidget(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
widget = DistanceInputPanel(self.param)
widget.hasChanged.connect(lambda: self.widgetValueHasChanged.emit(self))
return widget
else:
return ModelerNumberInputPanel(self.param, self.dialog)
def setValue(self, value):
if value is None or value == NULL:
return
self.widget.setValue(value)
def value(self):
return self.widget.getValue()
def postInitialize(self, wrappers):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
for wrapper in wrappers:
if wrapper.param.name() == self.param.dynamicLayerParameterName():
self.widget.setDynamicLayer(wrapper.value())
wrapper.widgetValueHasChanged.connect(self.dynamicLayerChanged)
if wrapper.param.name() == self.param.parentParameterName():
self.widget.setUnitParameterValue(wrapper.value())
wrapper.widgetValueHasChanged.connect(self.parentParameterChanged)
def dynamicLayerChanged(self, wrapper):
self.widget.setDynamicLayer(wrapper.value())
def parentParameterChanged(self, wrapper):
self.widget.setUnitParameterValue(wrapper.value())
class RangeWidgetWrapper(WidgetWrapper):
def createWidget(self):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
widget = RangePanel(self.param)
widget.hasChanged.connect(lambda: self.widgetValueHasChanged.emit(self))
return widget
#else:
# return ModelerNumberInputPanel(self.param, self.dialog)
def setValue(self, value):
if value is None or value == NULL:
return
self.widget.setValue(value)
def value(self):
return self.widget.getValue()
class MapLayerWidgetWrapper(WidgetWrapper):
NOT_SELECTED = '[Not selected]'
def createWidget(self):
if self.dialogType == DIALOG_STANDARD:
widget = QWidget()
layout = QHBoxLayout()
layout.setMargin(0)
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(6)
self.combo = QgsMapLayerComboBox()
layout.addWidget(self.combo)
btn = QToolButton()
btn.setText('…')
btn.setToolTip(self.tr("Select file"))
btn.clicked.connect(self.selectFile)
layout.addWidget(btn)
widget.setLayout(layout)
if ProcessingConfig.getSetting(ProcessingConfig.SHOW_CRS_DEF):
self.combo.setShowCrs(True)
self.setComboBoxFilters(self.combo)
try:
self.combo.setLayer(iface.activeLayer())
except:
pass
if self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
self.combo.setAllowEmptyLayer(True)
self.combo.setLayer(None)
self.combo.currentIndexChanged.connect(lambda: self.widgetValueHasChanged.emit(self))
self.combo.currentTextChanged.connect(lambda: self.widgetValueHasChanged.emit(self))
return widget
elif self.dialogType == DIALOG_BATCH:
widget = BatchInputSelectionPanel(self.param, self.row, self.col, self.dialog)
widget.valueChanged.connect(lambda: self.widgetValueHasChanged.emit(self))
return widget
else:
self.combo = QComboBox()
layers = self.getAvailableLayers()
self.combo.setEditable(True)
for layer in layers:
self.combo.addItem(self.dialog.resolveValueDescription(layer), layer)
if self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
self.combo.setEditText("")
widget = QWidget()
layout = QHBoxLayout()
layout.setMargin(0)
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(6)
layout.addWidget(self.combo)
btn = QToolButton()
btn.setText('…')
btn.setToolTip(self.tr("Select file"))
btn.clicked.connect(self.selectFile)
layout.addWidget(btn)
widget.setLayout(layout)
return widget
def setComboBoxFilters(self, combo):
pass
def getAvailableLayers(self):
return self.dialog.getAvailableValuesOfType(
[QgsProcessingParameterRasterLayer, QgsProcessingParameterVectorLayer, QgsProcessingParameterMapLayer, QgsProcessingParameterString],
[QgsProcessingOutputRasterLayer, QgsProcessingOutputVectorLayer, QgsProcessingOutputMapLayer, QgsProcessingOutputString, QgsProcessingOutputFile])
def selectFile(self):
filename, selected_filter = self.getFileName(self.combo.currentText())
if filename:
if isinstance(self.combo, QgsMapLayerComboBox):
items = self.combo.additionalItems()
items.append(filename)
self.combo.setAdditionalItems(items)
self.combo.setCurrentIndex(self.combo.findText(filename))
else:
self.combo.setEditText(filename)
def setValue(self, value):
if value is None or value == NULL:
return
if self.dialogType == DIALOG_STANDARD:
if self.combo.findText(value) >= 0:
self.combo.setCurrentIndex(self.combo.findText(value))
else:
items = self.combo.additionalItems()
items.append(value)
self.combo.setAdditionalItems(items)
self.combo.setCurrentIndex(self.combo.findText(value))
elif self.dialogType == DIALOG_BATCH:
self.widget.setText(value)
else:
self.setComboValue(value, combobox=self.combo)
def value(self):
if self.dialogType == DIALOG_STANDARD:
try:
layer = self.combo.currentLayer()
if layer is not None:
return layer
else:
return self.combo.currentText() or None
except:
return self.combo.currentText()
elif self.dialogType == DIALOG_BATCH:
return self.widget.value()
else:
def validator(v):
if not bool(v):
return self.param.flags() & QgsProcessingParameterDefinition.FlagOptional
else:
return os.path.exists(v)
return self.comboValue(validator, combobox=self.combo)
class RasterWidgetWrapper(MapLayerWidgetWrapper):
def getAvailableLayers(self):
return self.dialog.getAvailableValuesOfType((QgsProcessingParameterRasterLayer, QgsProcessingParameterString),
(QgsProcessingOutputRasterLayer, QgsProcessingOutputFile, QgsProcessingOutputString))
def setComboBoxFilters(self, combo):
combo.setFilters(QgsMapLayerProxyModel.RasterLayer)
combo.setExcludedProviders(['grass'])
def selectFile(self):
filename, selected_filter = self.getFileName(self.combo.currentText())
if filename:
filename = dataobjects.getRasterSublayer(filename, self.param)
if isinstance(self.combo, QgsMapLayerComboBox):
items = self.combo.additionalItems()
items.append(filename)
self.combo.setAdditionalItems(items)
self.combo.setCurrentIndex(self.combo.findText(filename))
else:
self.combo.setEditText(filename)
class EnumWidgetWrapper(WidgetWrapper):
NOT_SELECTED = '[Not selected]'
def createWidget(self, useCheckBoxes=False, columns=1):
if self.dialogType in (DIALOG_STANDARD, DIALOG_BATCH):
self._useCheckBoxes = useCheckBoxes
if self._useCheckBoxes and not self.dialogType == DIALOG_BATCH:
return CheckboxesPanel(options=self.param.options(),
multiple=self.param.allowMultiple(),
columns=columns)
if self.param.allowMultiple():
return MultipleInputPanel(options=self.param.options())
else:
widget = QComboBox()
for i, option in enumerate(self.param.options()):
widget.addItem(option, i)
if self.param.defaultValue():
widget.setCurrentIndex(widget.findData(self.param.defaultValue()))
return widget
else:
self.combobox = QComboBox()
if self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
self.combobox.addItem(self.NOT_SELECTED, self.NOT_SET_OPTION)
for i, option in enumerate(self.param.options()):
self.combobox.addItem(option, i)
values = self.dialog.getAvailableValuesOfType(QgsProcessingParameterEnum)
for v in values:
self.combobox.addItem(self.dialog.resolveValueDescription(v), v)
return self.combobox
def setValue(self, value):
if value is None or value == NULL:
return