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68 lines
2.3 KiB
Python
68 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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ParameterExtent.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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# 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 processing.parameters.Parameter import Parameter
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class ParameterExtent(Parameter):
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USE_MIN_COVERING_EXTENT = 'USE_MIN_COVERING_EXTENT'
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def __init__(self, name='', description='', default='0,1,0,1'):
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Parameter.__init__(self, name, description)
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self.default = default
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# The value is a string in the form "xmin, xmax, ymin, ymax"
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self.value = None
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def setValue(self, text):
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if text is None:
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self.value = self.default
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return True
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tokens = text.split(',')
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if len(tokens) != 4:
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return False
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try:
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n1 = float(tokens[0])
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n2 = float(tokens[1])
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n3 = float(tokens[2])
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n4 = float(tokens[3])
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self.value = text
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return True
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except:
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return False
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def getValueAsCommandLineParameter(self):
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return '"' + str(self.value) + '"'
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def serialize(self):
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return self.__module__.split('.')[-1] + '|' + self.name + '|' \
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+ self.description + '|' + str(self.default)
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def deserialize(self, s):
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tokens = s.split('|')
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return ParameterExtent(tokens[1], tokens[2], tokens[3])
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