# -*- coding: utf-8 -*-
"""
***************************************************************************
Parameters.py
---------------------
Date : August 2012
Copyright : (C) 2012 by Victor Olaya
Email : 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__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import sys
from qgis.core import (QgsRasterLayer,
QgsVectorLayer,
QgsMapLayer,
QgsCoordinateReferenceSystem,
QgsExpression,
QgsProject,
QgsRectangle,
QgsVectorFileWriter,
QgsProcessing,
QgsProcessingUtils,
QgsProcessingParameters,
QgsProcessingParameterDefinition,
QgsProcessingParameterRasterLayer,
QgsProcessingParameterVectorLayer,
QgsProcessingParameterBoolean,
QgsProcessingParameterCrs,
QgsProcessingParameterRange,
QgsProcessingParameterPoint,
QgsProcessingParameterEnum,
QgsProcessingParameterExtent,
QgsProcessingParameterMatrix,
QgsProcessingParameterFile,
QgsProcessingParameterField,
QgsProcessingParameterVectorDestination,
QgsProcessingParameterFileDestination,
QgsProcessingParameterFolderDestination,
QgsProcessingParameterRasterDestination,
QgsProcessingParameterString,
QgsProcessingParameterMultipleLayers,
QgsProcessingParameterFeatureSource,
QgsProcessingParameterNumber)
def getParameterFromString(s):
# Try the parameter definitions used in description files
if '|' in s and (s.startswith("QgsProcessingParameter") or s.startswith("*QgsProcessingParameter") or s.startswith('Parameter') or s.startswith('*Parameter')):
isAdvanced = False
if s.startswith("*"):
s = s[1:]
isAdvanced = True
tokens = s.split("|")
params = [t if str(t) != str(None) else None for t in tokens[1:]]
if True:
clazz = getattr(sys.modules[__name__], tokens[0])
# convert to correct type
if clazz == QgsProcessingParameterRasterLayer:
if len(params) > 3:
params[3] = True if params[3].lower() == 'true' else False
elif clazz == QgsProcessingParameterVectorLayer:
if len(params) > 2:
params[2] = [int(p) for p in params[2].split(';')]
if len(params) > 4:
params[4] = True if params[4].lower() == 'true' else False
elif clazz == QgsProcessingParameterBoolean:
if len(params) > 2:
params[2] = True if params[2].lower() == 'true' else False
if len(params) > 3:
params[3] = True if params[3].lower() == 'true' else False
elif clazz == QgsProcessingParameterPoint:
if len(params) > 3:
params[3] = True if params[3].lower() == 'true' else False
elif clazz == QgsProcessingParameterCrs:
if len(params) > 3:
params[3] = True if params[3].lower() == 'true' else False
elif clazz == QgsProcessingParameterRange:
if len(params) > 2:
params[2] = QgsProcessingParameterNumber.Integer if params[2].lower().endswith('integer') else QgsProcessingParameterNumber.Double
if len(params) > 4:
params[4] = True if params[4].lower() == 'true' else False
elif clazz == QgsProcessingParameterExtent:
if len(params) > 3:
params[3] = True if params[3].lower() == 'true' else False
elif clazz == QgsProcessingParameterEnum:
if len(params) > 2:
params[2] = params[2].split(';')
if len(params) > 3:
params[3] = True if params[3].lower() == 'true' else False
if len(params) > 4:
# For multiple values; default value is a list of int
if params[3] == True:
params[4] = [int(v) for v in params[4].split(',')]
else:
params[4] = int(params[4])
if len(params) > 5:
params[5] = True if params[5].lower() == 'true' else False
elif clazz == QgsProcessingParameterFeatureSource:
if len(params) > 2:
params[2] = [int(p) for p in params[2].split(';')]
if len(params) > 4:
params[4] = True if params[4].lower() == 'true' else False
elif clazz == QgsProcessingParameterMultipleLayers:
if len(params) > 2:
params[2] = int(params[2])
if len(params) > 4:
params[4] = True if params[4].lower() == 'true' else False
elif clazz == QgsProcessingParameterMatrix:
if len(params) > 2:
params[2] = int(params[2])
if len(params) > 3:
params[3] = True if params[3].lower() == 'true' else False
if len(params) > 4:
params[4] = params[4].split(';')
elif clazz == QgsProcessingParameterField:
if len(params) > 4:
params[4] = int(params[4])
if len(params) > 5:
params[5] = True if params[5].lower() == 'true' else False
if len(params) > 6:
params[6] = True if params[6].lower() == 'true' else False
elif clazz == QgsProcessingParameterFile:
if len(params) > 2:
params[2] = QgsProcessingParameterFile.File if params[2].lower() == 'false' else QgsProcessingParameterFile.Folder
if len(params) > 5:
params[5] = True if params[5].lower() == 'true' else False
elif clazz == QgsProcessingParameterNumber:
if len(params) > 2:
params[2] = QgsProcessingParameterNumber.Integer if params[2].lower().endswith('integer') else QgsProcessingParameterNumber.Double
if len(params) > 3:
params[3] = float(params[3].strip()) if params[3] is not None else None
if len(params) > 4:
params[4] = True if params[4].lower() == 'true' else False
if len(params) > 5:
params[5] = float(params[5].strip()) if params[5] is not None else -sys.float_info.max + 1
if len(params) > 6:
params[6] = float(params[6].strip()) if params[6] is not None else sys.float_info.max - 1
elif clazz == QgsProcessingParameterString:
if len(params) > 3:
params[3] = True if params[3].lower() == 'true' else False
if len(params) > 4:
params[4] = True if params[4].lower() == 'true' else False
elif clazz == QgsProcessingParameterFileDestination:
if len(params) > 4:
params[4] = True if params[4].lower() == 'true' else False
elif clazz == QgsProcessingParameterFolderDestination:
if len(params) > 3:
params[3] = True if params[3].lower() == 'true' else False
elif clazz == QgsProcessingParameterRasterDestination:
if len(params) > 3:
params[3] = True if params[3].lower() == 'true' else False
elif clazz == QgsProcessingParameterVectorDestination:
if len(params) > 2:
if params[2].lower().endswith('point'):
params[2] = QgsProcessing.TypeVectorPoint
elif params[2].lower().endswith('line'):
params[2] = QgsProcessing.TypeVectorLine
elif params[2].lower().endswith('polygon'):
params[2] = QgsProcessing.TypeVectorPolygon
elif params[2].lower().endswith('geometry'):
params[2] = QgsProcessing.TypeVectorAnyGeometry
elif params[2].lower().endswith('vector'):
params[2] = QgsProcessing.TypeVector
if len(params) > 4:
params[4] = True if params[4].lower() == 'true' else False
param = clazz(*params)
if isAdvanced:
param.setFlags(param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
return param
else:
return None
else: # try script syntax
# try native method
param = QgsProcessingParameters.parameterFromScriptCode(s)
if param:
return param