示例#1
0
    def getWidgetFromParameter(self, param, row, col):
        if isinstance(param, (ParameterRaster, ParameterVector, ParameterTable,
                              ParameterMultipleInput)):
            item = BatchInputSelectionPanel(param, row, col, self)
        elif isinstance(param, ParameterBoolean):
            item = QtGui.QComboBox()
            item.addItem('Yes')
            item.addItem('No')
            if param.default:
                item.setCurrentIndex(0)
            else:
                item.setCurrentIndex(1)
        elif isinstance(param, ParameterSelection):
            item = QtGui.QComboBox()
            item.addItems(param.options)
        elif isinstance(param, ParameterFixedTable):
            item = FixedTablePanel(param)
        elif isinstance(param, ParameterExtent):
            item = ExtentSelectionPanel(self, self.alg, param.default)
        elif isinstance(param, ParameterCrs):
            item = CrsSelectionPanel(param.default)
        elif isinstance(param, ParameterFile):
            item = FileSelectionPanel(param.isFolder)
        else:
            item = QtGui.QLineEdit()
            try:
                item.setText(str(param.default))
            except:
                pass

        return item
示例#2
0
    def getWidgetFromParameter(self, param, row, col):
        if isinstance(param, (ParameterRaster, ParameterVector, ParameterTable,
                              ParameterMultipleInput)):
            item = BatchInputSelectionPanel(param, row, col, self)
        elif isinstance(param, ParameterBoolean):
            item = QComboBox()
            item.addItem(self.tr('Yes'))
            item.addItem(self.tr('No'))
            if param.default:
                item.setCurrentIndex(0)
            else:
                item.setCurrentIndex(1)
        elif isinstance(param, ParameterSelection):
            item = QComboBox()
            item.addItems(param.options)
        elif isinstance(param, ParameterFixedTable):
            item = FixedTablePanel(param)
        elif isinstance(param, ParameterExtent):
            item = ExtentSelectionPanel(self.parent, self.alg, param.default)
        elif isinstance(param, ParameterPoint):
            item = PointSelectionPanel(self.parent, param.default)
        elif isinstance(param, ParameterCrs):
            item = CrsSelectionPanel(param.default)
        elif isinstance(param, ParameterFile):
            item = FileSelectionPanel(param.isFolder)
        elif isinstance(param, ParameterGeometryPredicate):
            item = GeometryPredicateSelectionPanel(param.enabledPredicates,
                                                   rows=1)
            width = max(self.tblParameters.columnWidth(col),
                        item.sizeHint().width())
            self.tblParameters.setColumnWidth(col, width)
        else:
            item = QLineEdit()
            if param.default is not None:
                try:
                    item.setText(unicode(param.default))
                except:
                    pass

        return item
示例#3
0
 def createWidget(self):
     return FixedTablePanel(self.param)
 def getWidgetFromParameter(self, param):
     if isinstance(param, ParameterRaster):
         item = QtGui.QComboBox()
         layers = self.getAvailableValuesOfType(ParameterRaster, OutputRaster)
         if param.optional:
             item.addItem(self.NOT_SELECTED, None)
         for layer in layers:
             item.addItem(self.resolveValueDescription(layer), layer)
     elif isinstance(param, ParameterVector):
         item = QtGui.QComboBox()
         layers = self.getAvailableValuesOfType(ParameterVector, OutputVector)
         if param.optional:
             item.addItem(self.NOT_SELECTED, None)
         for layer in layers:
             item.addItem(self.resolveValueDescription(layer), layer)
     elif isinstance(param, ParameterTable):
         item = QtGui.QComboBox()
         item.setEditable(True)
         layers = self.getAvailableValuesOfType(ParameterTable, OutputTable)
         if param.optional:
             item.addItem(self.NOT_SELECTED, None)
         for layer in layers:
             item.addItem(self.resolveValueDescription(layer), layer)
     elif isinstance(param, ParameterBoolean):
         item = QtGui.QComboBox()
         item.addItem('Yes')
         item.addItem('No')
         bools = self.getAvailableValuesOfType(ParameterBoolean, None)
         for b in bools:
             item.addItem(self.resolveValueDescription(b), b)
     elif isinstance(param, ParameterSelection):
         item = QtGui.QComboBox()
         item.addItems(param.options)
     elif isinstance(param, ParameterFixedTable):
         item = FixedTablePanel(param)
     elif isinstance(param, ParameterRange):
         item = RangePanel(param)
     elif isinstance(param, ParameterMultipleInput):
         if param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
             options = self.getAvailableValuesOfType(ParameterVector, OutputVector)
         else:
             options = self.getAvailableValuesOfType(ParameterRaster, OutputRaster)
         opts = []
         for opt in options:
             opts.append(self.resolveValueDescription(opt))
         item = MultipleInputPanel(opts)
     elif isinstance(param, ParameterString):
         strings = self.getAvailableValuesOfType(ParameterString, OutputString)
         options = [(self.resolveValueDescription(s), s) for s in strings]
         if param.multiline:
             item = MultilineTextPanel(options)
             item.setText(unicode(param.default))
         else:
             item = QtGui.QComboBox()
             item.setEditable(True)
             for desc, val in options:
                 item.addItem(desc, val)
             item.setEditText(unicode(param.default))
     elif isinstance(param, ParameterTableField):
         item = QtGui.QComboBox()
         item.setEditable(True)
         fields = self.getAvailableValuesOfType(ParameterTableField, None)
         for f in fields:
             item.addItem(self.resolveValueDescription(f), f)
     elif isinstance(param, ParameterNumber):
         item = QtGui.QComboBox()
         item.setEditable(True)
         numbers = self.getAvailableValuesOfType(ParameterNumber, OutputNumber)
         for n in numbers:
             item.addItem(self.resolveValueDescription(n), n)
         item.setEditText(str(param.default))
     elif isinstance(param, ParameterCrs):
         item = CrsSelectionPanel(param.default)
     elif isinstance(param, ParameterExtent):
         item = QtGui.QComboBox()
         item.setEditable(True)
         extents = self.getAvailableValuesOfType(ParameterExtent, OutputExtent)
         if self.canUseAutoExtent():
             item.addItem(self.USE_MIN_COVERING_EXTENT, None)
         for ex in extents:
             item.addItem(self.resolveValueDescription(ex), ex)
         if not self.canUseAutoExtent():
             item.setEditText(str(param.default))
     elif isinstance(param, ParameterFile):
         item = QtGui.QComboBox()
         item.setEditable(True)
         files = self.getAvailableValuesOfType(ParameterFile, OutputFile)
         for f in files:
             item.addItem(self.resolveValueDescription(f), f)
     else:
         item = QtGui.QLineEdit()
         try:
             item.setText(str(param.default))
         except:
             pass
     return item
    def getWidgetFromParameter(self, param):
        if isinstance(param, ParameterRaster):
            item = QtGui.QComboBox()

            layers = self.getRasterLayers()
            if param.optional:
                item.addItem(self.NOT_SELECTED, None)
            for layer in layers:
                item.addItem(layer.name(), layer)
        elif isinstance(param, ParameterVector):
            item = QtGui.QComboBox()

            layers = self.getVectorLayers()
            if param.optional:
                item.addItem(self.NOT_SELECTED, None)
            for layer in layers:
                item.addItem(layer.name(), layer)
        elif isinstance(param, ParameterTable):
            item = QtGui.QComboBox()
            item.setEditable(True)
            layers = self.getTables()
            if param.optional:
                item.addItem(self.NOT_SELECTED, None)
            for layer in layers:
                item.addItem(layer.name(), layer)
        elif isinstance(param, ParameterBoolean):
            item = QtGui.QComboBox()
            item.addItem('Yes')
            item.addItem('No')
            bools = self.getBooleans()
            for b in bools:
                item.addItem(b.name(), b)
        elif isinstance(param, ParameterSelection):
            item = QtGui.QComboBox()
            item.addItems(param.options)
        elif isinstance(param, ParameterFixedTable):
            item = FixedTablePanel(param)
        elif isinstance(param, ParameterRange):
            item = RangePanel(param)
        elif isinstance(param, ParameterMultipleInput):
            if param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
                options = self.getVectorLayers()
            else:
                options = self.getRasterLayers()
            opts = []
            for opt in options:
                opts.append(opt.name())
            item = MultipleInputPanel(opts)
        elif isinstance(param, ParameterString):
            strings = self.getStrings()
            if param.multiline:
                item = MultilineTextPanel(strings, self.model)
                item.setText(str(param.default))
            else:
                item = QtGui.QComboBox()
                item.setEditable(True)
                for s in strings:
                    item.addItem(s.name(), s)
                item.setEditText(str(param.default))
        elif isinstance(param, ParameterTableField):
            item = QtGui.QComboBox()
            item.setEditable(True)
            fields = self.getTableFields()
            for f in fields:
                item.addItem(f.name(), f)
        elif isinstance(param, ParameterNumber):
            item = QtGui.QComboBox()
            item.setEditable(True)
            numbers = self.getNumbers()
            for n in numbers:
                item.addItem(n.name(), n)
            item.setEditText(str(param.default))
        elif isinstance(param, ParameterCrs):
            item = CrsSelectionPanel(param.default)
        elif isinstance(param, ParameterExtent):
            item = QtGui.QComboBox()
            item.setEditable(True)
            extents = self.getExtents()
            if self.canUseAutoExtent():
                item.addItem(self.USE_MIN_COVERING_EXTENT, None)
            for ex in extents:
                item.addItem(ex.name(), ex)
            if not self.canUseAutoExtent():
                item.setEditText(str(param.default))
        elif isinstance(param, ParameterFile):
            item = QtGui.QComboBox()
            item.setEditable(True)
            files = self.getFiles()
            for f in files:
                item.addItem(f.name(), f)
        else:
            item = QtGui.QLineEdit()
            try:
                item.setText(str(param.default))
            except:
                pass
        return item
 def getWidgetFromParameter(self, param):
     if isinstance(param, ParameterRaster):
         item = QComboBox()
         layers = self.getAvailableValuesOfType(ParameterRaster,
                                                OutputRaster)
         if param.optional:
             item.addItem(self.NOT_SELECTED, None)
         for layer in layers:
             item.addItem(self.resolveValueDescription(layer), layer)
     elif isinstance(param, ParameterVector):
         item = QComboBox()
         layers = self.getAvailableValuesOfType(ParameterVector,
                                                OutputVector)
         if param.optional:
             item.addItem(self.NOT_SELECTED, None)
         for layer in layers:
             item.addItem(self.resolveValueDescription(layer), layer)
     elif isinstance(param, ParameterTable):
         item = QComboBox()
         tables = self.getAvailableValuesOfType(ParameterTable, OutputTable)
         layers = self.getAvailableValuesOfType(ParameterVector,
                                                OutputVector)
         if param.optional:
             item.addItem(self.NOT_SELECTED, None)
         for table in tables:
             item.addItem(self.resolveValueDescription(table), table)
         for layer in layers:
             item.addItem(self.resolveValueDescription(layer), layer)
     elif isinstance(param, ParameterBoolean):
         item = QComboBox()
         item.addItem('Yes')
         item.addItem('No')
         bools = self.getAvailableValuesOfType(ParameterBoolean, None)
         for b in bools:
             item.addItem(self.resolveValueDescription(b), b)
         if param.default:
             item.setCurrentIndex(0)
         else:
             item.setCurrentIndex(1)
     elif isinstance(param, ParameterSelection):
         item = QComboBox()
         item.addItems(param.options)
         item.setCurrentIndex(param.default or 1)
     elif isinstance(param, ParameterFixedTable):
         item = FixedTablePanel(param)
     elif isinstance(param, ParameterRange):
         item = RangePanel(param)
     elif isinstance(param, ParameterMultipleInput):
         if param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
             options = self.getAvailableValuesOfType(
                 ParameterVector, OutputVector)
         else:
             options = self.getAvailableValuesOfType(
                 ParameterRaster, OutputRaster)
         opts = []
         for opt in options:
             opts.append(self.resolveValueDescription(opt))
         item = MultipleInputPanel(opts)
     elif isinstance(param, ParameterString):
         strings = self.getAvailableValuesOfType(ParameterString,
                                                 OutputString)
         options = [(self.resolveValueDescription(s), s) for s in strings]
         if param.multiline:
             item = MultilineTextPanel(options)
             item.setText(unicode(param.default or ""))
         else:
             item = QComboBox()
             item.setEditable(True)
             for desc, val in options:
                 item.addItem(desc, val)
             item.setEditText(unicode(param.default or ""))
     elif isinstance(param, ParameterTableField):
         item = QComboBox()
         item.setEditable(True)
         fields = self.getAvailableValuesOfType(ParameterTableField, None)
         for f in fields:
             item.addItem(self.resolveValueDescription(f), f)
     elif isinstance(param, ParameterNumber):
         item = QComboBox()
         item.setEditable(True)
         numbers = self.getAvailableValuesOfType(ParameterNumber,
                                                 OutputNumber)
         for n in numbers:
             item.addItem(self.resolveValueDescription(n), n)
         item.setEditText(unicode(param.default))
     elif isinstance(param, ParameterCrs):
         item = CrsSelectionPanel(param.default)
     elif isinstance(param, ParameterExtent):
         item = QComboBox()
         item.setEditable(True)
         extents = self.getAvailableValuesOfType(ParameterExtent,
                                                 OutputExtent)
         if self.canUseAutoExtent():
             item.addItem(self.USE_MIN_COVERING_EXTENT, None)
         for ex in extents:
             item.addItem(self.resolveValueDescription(ex), ex)
         if not self.canUseAutoExtent():
             item.setEditText(unicode(param.default))
     elif isinstance(param, ParameterPoint):
         item = QComboBox()
         item.setEditable(True)
         points = self.getAvailableValuesOfType(ParameterPoint)
         for p in points:
             item.addItem(self.resolveValueDescription(p), p)
         item.setEditText(unicode(param.default))
     elif isinstance(param, ParameterFile):
         item = QComboBox()
         item.setEditable(True)
         files = self.getAvailableValuesOfType(ParameterFile, OutputFile)
         for f in files:
             item.addItem(self.resolveValueDescription(f), f)
     elif isinstance(param, ParameterGeometryPredicate):
         item = GeometryPredicateSelectionPanel(param.enabledPredicates)
     else:
         item = QLineEdit()
         try:
             item.setText(unicode(param.default))
         except:
             pass
     return item
示例#7
0
    def getWidgetFromParameter(self, param):
        # TODO Create Parameter widget class that holds the logic
        # for creating a widget that belongs to the parameter.
        if isinstance(param, ParameterRaster):
            layers = dataobjects.getRasterLayers()
            items = []
            if param.optional:
                items.append((self.NOT_SELECTED, None))
            for layer in layers:
                items.append((self.getExtendedLayerName(layer), layer))
            item = InputLayerSelectorPanel(items, param)
        elif isinstance(param, ParameterVector):
            if self.somethingDependsOnThisParameter(
                    param) or self.alg.allowOnlyOpenedLayers:
                item = QComboBox()
                layers = dataobjects.getVectorLayers(param.shapetype)
                if param.optional:
                    item.addItem(self.NOT_SELECTED, None)
                for layer in layers:
                    item.addItem(self.getExtendedLayerName(layer), layer)
                item.currentIndexChanged.connect(self.updateDependentFields)
                item.name = param.name
            else:
                layers = dataobjects.getVectorLayers(param.shapetype)
                items = []
                if param.optional:
                    items.append((self.NOT_SELECTED, None))
                for layer in layers:
                    items.append((self.getExtendedLayerName(layer), layer))
                # if already set, put first in list
                for i, (name, layer) in enumerate(items):
                    if layer and layer.source() == param.value:
                        items.insert(0, items.pop(i))
                item = InputLayerSelectorPanel(items, param)
        elif isinstance(param, ParameterTable):
            if self.somethingDependsOnThisParameter(param):
                item = QComboBox()
                layers = dataobjects.getTables()
                if param.optional:
                    item.addItem(self.NOT_SELECTED, None)
                for layer in layers:
                    item.addItem(layer.name(), layer)
                item.currentIndexChanged.connect(self.updateDependentFields)
                item.name = param.name
            else:
                layers = dataobjects.getTables()
                items = []
                if param.optional:
                    items.append((self.NOT_SELECTED, None))
                for layer in layers:
                    items.append((layer.name(), layer))
                # if already set, put first in list
                for i, (name, layer) in enumerate(items):
                    if layer and layer.source() == param.value:
                        items.insert(0, items.pop(i))
                item = InputLayerSelectorPanel(items, param)
        elif isinstance(param, ParameterBoolean):
            item = QCheckBox()
            if param.default:
                item.setChecked(True)
            else:
                item.setChecked(False)
        elif isinstance(param, ParameterTableField):
            item = QComboBox()
            if param.parent in self.dependentItems:
                items = self.dependentItems[param.parent]
            else:
                items = []
                self.dependentItems[param.parent] = items
            items.append(param.name)
            parent = self.alg.getParameterFromName(param.parent)
            if isinstance(parent, ParameterVector):
                layers = dataobjects.getVectorLayers(parent.shapetype)
            else:
                layers = dataobjects.getTables()
            if len(layers) > 0:
                if param.optional:
                    item.addItem(self.tr("[not set]"))
                item.addItems(self.getFields(layers[0], param.datatype))
        elif isinstance(param, ParameterSelection):
            item = QComboBox()
            item.addItems(param.options)
            item.setCurrentIndex(param.default)
        elif isinstance(param, ParameterFixedTable):
            item = FixedTablePanel(param)
        elif isinstance(param, ParameterRange):
            item = RangePanel(param)
        elif isinstance(param, ParameterFile):
            item = FileSelectionPanel(param.isFolder, param.ext)
        elif isinstance(param, ParameterMultipleInput):
            if param.datatype == ParameterMultipleInput.TYPE_FILE:
                item = MultipleFileInputPanel()
            else:
                if param.datatype == ParameterMultipleInput.TYPE_RASTER:
                    options = dataobjects.getRasterLayers(sorting=False)
                elif param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
                    options = dataobjects.getVectorLayers(sorting=False)
                else:
                    options = dataobjects.getVectorLayers([param.datatype],
                                                          sorting=False)
                opts = []
                for opt in options:
                    opts.append(self.getExtendedLayerName(opt))
                item = MultipleInputPanel(opts)
        elif isinstance(param, ParameterNumber):
            item = NumberInputPanel(param.default, param.min, param.max,
                                    param.isInteger)
        elif isinstance(param, ParameterExtent):
            item = ExtentSelectionPanel(self.parent, self.alg, param.default)
        elif isinstance(param, ParameterCrs):
            item = CrsSelectionPanel(param.default)
        elif isinstance(param, ParameterString):
            if param.multiline:
                verticalLayout = QVBoxLayout()
                verticalLayout.setSizeConstraint(QLayout.SetDefaultConstraint)
                textEdit = QPlainTextEdit()
                textEdit.setPlainText(param.default)
                verticalLayout.addWidget(textEdit)
                item = textEdit
            else:
                item = QLineEdit()
                item.setText(str(param.default))
        else:
            item = QLineEdit()
            item.setText(str(param.default))

        return item
示例#8
0
 def getWidgetFromParameter(self, param):
     if isinstance(param, ParameterRaster):
         item = QtGui.QComboBox()
         #item.setEditable(True)
         layers = self.getRasterLayers()
         if (param.optional):
             item.addItem(self.NOT_SELECTED, None)
         for layer in layers:
             item.addItem(layer.name(), layer)
     elif isinstance(param, ParameterVector):
         item = QtGui.QComboBox()
         #item.setEditable(True)
         layers = self.getVectorLayers()
         if (param.optional):
             item.addItem(self.NOT_SELECTED, None)
         for layer in layers:
             item.addItem(layer.name(), layer)
     elif isinstance(param, ParameterTable):
         item = QtGui.QComboBox()
         item.setEditable(True)
         layers = self.getTables()
         if (param.optional):
             item.addItem(self.NOT_SELECTED, None)
         for layer in layers:
             item.addItem(layer.name(), layer)
     elif isinstance(param, ParameterBoolean):
         item = QtGui.QComboBox()
         item.addItem("Yes")
         item.addItem("No")
         bools = self.getBooleans()
         for b in bools:
             item.addItem(b.name(), b)
     elif isinstance(param, ParameterSelection):
         item = QtGui.QComboBox()
         item.addItems(param.options)
     elif isinstance(param, ParameterFixedTable):
         item = FixedTablePanel(param)
     elif isinstance(param, ParameterRange):
         item = RangePanel(param)
     elif isinstance(param, ParameterMultipleInput):
         if param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
             options = self.getVectorLayers()
         else:
             options = self.getRasterLayers()
         opts = []
         for opt in options:
             opts.append(opt.name())
         item = MultipleInputPanel(opts)
     elif isinstance(param, ParameterString):
         strings = self.getStrings()
         if param.multiline:
             item = MultilineTextPanel(strings,self.model)
             item.setText(str(param.default))
         else:
             item = QtGui.QComboBox()
             item.setEditable(True)
             for s in strings:
                 item.addItem(s.name(), s)
             item.setEditText(str(param.default))
     elif isinstance(param, ParameterTableField):
         item = QtGui.QComboBox()
         item.setEditable(True)
         fields = self.getTableFields()
         for f in fields:
             item.addItem(f.name(), f)
     elif isinstance(param, ParameterNumber):
         item = QtGui.QComboBox()
         item.setEditable(True)
         numbers = self.getNumbers()
         for n in numbers:
             item.addItem(n.name(), n)
         item.setEditText(str(param.default))
     elif isinstance(param, ParameterCrs):
         item = CrsSelectionPanel(param.default)
     elif isinstance(param, ParameterExtent):
         item = QtGui.QComboBox()
         item.setEditable(True)
         extents = self.getExtents()
         if self.canUseAutoExtent():
             item.addItem(self.USE_MIN_COVERING_EXTENT, None)
         for ex in extents:
             item.addItem(ex.name(), ex)
         if not self.canUseAutoExtent():
             item.setEditText(str(param.default))
     elif isinstance(param, ParameterFile):
         item = QtGui.QComboBox()
         item.setEditable(True)
         files = self.getFiles()
         for f in files:
             item.addItem(f.name(), f)
     else:
         item = QtGui.QLineEdit()
         try:
             item.setText(str(param.default))
         except:
             pass
     return item
示例#9
0
    def getWidgetFromParameter(self, param):
        if isinstance(param, ParameterRaster):
            layers = dataobjects.getRasterLayers()
            items = []
            if param.optional:
                items.append((self.NOT_SELECTED, None))
            for layer in layers:
                items.append((self.getExtendedLayerName(layer), layer))
            item = InputLayerSelectorPanel(items)
        elif isinstance(param, ParameterVector):
            if self.somethingDependsOnThisParameter(param) \
                or self.alg.allowOnlyOpenedLayers:
                item = QtGui.QComboBox()
                layers = dataobjects.getVectorLayers(param.shapetype)
                if param.optional:
                    item.addItem(self.NOT_SELECTED, None)
                for layer in layers:
                    item.addItem(self.getExtendedLayerName(layer), layer)
                item.currentIndexChanged.connect(self.updateDependentFields)
                item.name = param.name
            else:
                layers = dataobjects.getVectorLayers(param.shapetype)
                items = []
                if param.optional:
                    items.append((self.NOT_SELECTED, None))
                for layer in layers:
                    items.append((self.getExtendedLayerName(layer), layer))
                item = InputLayerSelectorPanel(items)
        elif isinstance(param, ParameterTable):
            if self.somethingDependsOnThisParameter(param):
                item = QtGui.QComboBox()
                layers = dataobjects.getTables()
                if param.optional:
                    item.addItem(self.NOT_SELECTED, None)
                for layer in layers:
                    item.addItem(layer.name(), layer)
                item.currentIndexChanged.connect(self.updateDependentFields)
                item.name = param.name
            else:
                layers = dataobjects.getTables()
                items = []
                if param.optional:
                    items.append((self.NOT_SELECTED, None))
                for layer in layers:
                    items.append((layer.name(), layer))
                item = InputLayerSelectorPanel(items)
        elif isinstance(param, ParameterBoolean):
            item = QtGui.QComboBox()
            item.addItem('Yes')
            item.addItem('No')
            if param.default:
                item.setCurrentIndex(0)
            else:
                item.setCurrentIndex(1)
        elif isinstance(param, ParameterTableField):
            item = QtGui.QComboBox()
            if param.parent in self.dependentItems:
                items = self.dependentItems[param.parent]
            else:
                items = []
                self.dependentItems[param.parent] = items
            items.append(param.name)
            parent = self.alg.getParameterFromName(param.parent)
            if isinstance(parent, ParameterVector):
                layers = dataobjects.getVectorLayers(parent.shapetype)
            else:
                layers = dataobjects.getTables()
            if len(layers) > 0:
                item.addItems(self.getFields(layers[0], param.datatype))
        elif isinstance(param, ParameterSelection):
            item = QtGui.QComboBox()
            item.addItems(param.options)
            item.setCurrentIndex(param.default)
        elif isinstance(param, ParameterFixedTable):
            item = FixedTablePanel(param)
        elif isinstance(param, ParameterRange):
            item = RangePanel(param)
        elif isinstance(param, ParameterFile):
            item = FileSelectionPanel(param.isFolder)
        elif isinstance(param, ParameterMultipleInput):
            if param.datatype == ParameterMultipleInput.TYPE_RASTER:
                options = dataobjects.getRasterLayers()
            elif param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
                options = dataobjects.getVectorLayers()
            else:
                options = dataobjects.getVectorLayers([param.datatype])
            opts = []
            for opt in options:
                opts.append(self.getExtendedLayerName(opt))
            item = MultipleInputPanel(opts)
        elif isinstance(param, ParameterNumber):
            item = NumberInputPanel(param.default, param.min, param.max,
                                    param.isInteger)
        elif isinstance(param, ParameterExtent):
            item = ExtentSelectionPanel(self.parent, self.alg, param.default)
        elif isinstance(param, ParameterCrs):
            item = CrsSelectionPanel(param.default)
        elif isinstance(param, ParameterString):
            if param.multiline:
                verticalLayout = QtGui.QVBoxLayout()
                verticalLayout.setSizeConstraint(
                    QtGui.QLayout.SetDefaultConstraint)
                textEdit = QtGui.QPlainTextEdit()
                textEdit.setPlainText(param.default)
                verticalLayout.addWidget(textEdit)
                item = textEdit
            else:
                item = QtGui.QLineEdit()
                item.setText(str(param.default))
        else:
            item = QtGui.QLineEdit()
            item.setText(str(param.default))

        return item