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e91aed6617
their underlying algorithm's provider E.g. for model outputs generated by a saga algorithm, only sdat and shp files are valid outputs. So only give users choices of these instead of all formats. Also fixes temporary file names generated as part of model execution may use formats which are not compatible with the algorithm's provider. Fixes #18908
91 lines
3.8 KiB
Python
91 lines
3.8 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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ParameterGuiUtils.py
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---------------------
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Date : June 2017
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Copyright : (C) 2017 by Nyall Dawson
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Email : nyall dot dawson 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__ = 'Nyall Dawson'
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__date__ = 'June 2017'
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__copyright__ = '(C) 2017, Nyall Dawson'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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from qgis.core import (QgsProcessing,
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QgsProviderRegistry,
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QgsProcessingFeatureSourceDefinition,
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QgsVectorFileWriter,
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QgsRasterFileWriter)
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from qgis.PyQt.QtCore import QCoreApplication
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from processing.tools import dataobjects
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def tr(string, context=''):
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if context == '':
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context = 'Processing'
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return QCoreApplication.translate(context, string)
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def getFileFilter(param):
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"""
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Returns a suitable file filter pattern for the specified parameter definition
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:param param:
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:return:
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"""
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if param.type() == 'layer':
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vectors = QgsProviderRegistry.instance().fileVectorFilters().split(';;')
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vectors.pop(0)
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rasters = QgsProviderRegistry.instance().fileRasterFilters().split(';;')
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rasters.pop(0)
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filters = set(vectors + rasters)
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filters = sorted(filters)
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return tr('All files (*.*)') + ';;' + ";;".join(filters)
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elif param.type() == 'multilayer':
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if param.layerType() == QgsProcessing.TypeRaster:
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exts = QgsRasterFileWriter.supportedFormatExtensions()
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elif param.layerType() == QgsProcessing.TypeFile:
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return tr('All files (*.*)', 'QgsProcessingParameterMultipleLayers')
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else:
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exts = QgsVectorFileWriter.supportedFormatExtensions()
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for i in range(len(exts)):
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exts[i] = tr('{0} files (*.{1})', 'QgsProcessingParameterMultipleLayers').format(exts[i].upper(), exts[i].lower())
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return tr('All files (*.*)') + ';;' + ';;'.join(exts)
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elif param.type() == 'raster':
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return QgsProviderRegistry.instance().fileRasterFilters()
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elif param.type() == 'rasterDestination':
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exts = param.supportedOutputRasterLayerExtensions()
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for i in range(len(exts)):
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exts[i] = tr('{0} files (*.{1})', 'ParameterRaster').format(exts[i].upper(), exts[i].lower())
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return ';;'.join(exts) + ';;' + tr('All files (*.*)')
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elif param.type() in ('sink', 'vectorDestination'):
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exts = param.supportedOutputVectorLayerExtensions()
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for i in range(len(exts)):
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exts[i] = tr('{0} files (*.{1})', 'ParameterVector').format(exts[i].upper(), exts[i].lower())
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return ';;'.join(exts) + ';;' + tr('All files (*.*)')
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elif param.type() == 'source':
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return QgsProviderRegistry.instance().fileVectorFilters()
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elif param.type() == 'vector':
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return QgsProviderRegistry.instance().fileVectorFilters()
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elif param.type() == 'fileDestination':
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return param.fileFilter() + ';;' + tr('All files (*.*)')
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if param.defaultFileExtension():
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return tr('Default extension') + ' (*.' + param.defaultFileExtension() + ')'
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else:
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return ''
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