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72 lines
2.9 KiB
Python
72 lines
2.9 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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OutputTable.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.core.TableWriter import TableWriter
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from processing.core.ProcessingUtils import ProcessingUtils
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from processing.outputs.Output import Output
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from PyQt4.QtCore import *
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class OutputTable(Output):
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encoding = None
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compatible = None
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def getFileFilter(self,alg):
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exts = ['csv']
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for i in range(len(exts)):
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exts[i] = exts[i].upper() + " files(*." + exts[i].lower() + ")"
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return ";;".join(exts)
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def getDefaultFileExtension(self, alg):
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return alg.provider.getSupportedOutputTableExtensions()[0]
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def getCompatibleFileName(self, alg):
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'''Returns a filename that is compatible with the algorithm that is going to generate this output.
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If the algorithm supports the file format of the current output value, it returns that value. If not,
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it returns a temporary file with a supported file format, to be used to generate the output result.'''
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ext = self.value[self.value.rfind(".") + 1:]
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if ext in alg.provider.getSupportedOutputTableExtensions():
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return self.value
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else:
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if self.compatible is None:
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self.compatible = ProcessingUtils.getTempFilename(self.getDefaultFileExtension(alg))
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return self.compatible;
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def getTableWriter(self, fields):
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'''Returns a suitable writer to which records can be added as a
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result of the algorithm. Use this to transparently handle output
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values instead of creating your own method.
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@param fields a list of QgsField
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@return writer instance of the table writer class
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'''
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if self.encoding is None:
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settings = QSettings()
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self.encoding = settings.value("/ProcessingQGIS/encoding", "System")
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return TableWriter(self.value, self.encoding, fields) |