mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-27 00:33:48 -05:00
68 lines
2.3 KiB
Python
68 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
ParameterExtent.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__ = '$Format:%H$'
|
|
|
|
from processing.parameters.Parameter import Parameter
|
|
|
|
|
|
class ParameterExtent(Parameter):
|
|
|
|
USE_MIN_COVERING_EXTENT = 'USE_MIN_COVERING_EXTENT'
|
|
|
|
def __init__(self, name='', description='', default='0,1,0,1'):
|
|
Parameter.__init__(self, name, description)
|
|
self.default = default
|
|
# The value is a string in the form "xmin, xmax, ymin, ymax"
|
|
self.value = None
|
|
|
|
def setValue(self, text):
|
|
if text is None:
|
|
self.value = self.default
|
|
return True
|
|
tokens = text.split(',')
|
|
if len(tokens) != 4:
|
|
return False
|
|
try:
|
|
n1 = float(tokens[0])
|
|
n2 = float(tokens[1])
|
|
n3 = float(tokens[2])
|
|
n4 = float(tokens[3])
|
|
self.value = text
|
|
return True
|
|
except:
|
|
return False
|
|
|
|
def getValueAsCommandLineParameter(self):
|
|
return '"' + str(self.value) + '"'
|
|
|
|
def serialize(self):
|
|
return self.__module__.split('.')[-1] + '|' + self.name + '|' \
|
|
+ self.description + '|' + str(self.default)
|
|
|
|
def deserialize(self, s):
|
|
tokens = s.split('|')
|
|
return ParameterExtent(tokens[1], tokens[2], tokens[3])
|