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70 lines
2.8 KiB
Python
70 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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OutputVector.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 PyQt4.QtCore import *
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from sextante.outputs.Output import Output
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from sextante.core.SextanteVectorWriter import SextanteVectorWriter
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class OutputVector(Output):
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encoding = None
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def getFileFilter(self,alg):
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exts = alg.provider.getSupportedOutputVectorLayerExtensions()
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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.getSupportedOutputVectorLayerExtensions()[0]
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def getVectorWriter(self, fields, geomType, crs, options=None):
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'''Returns a suitable writer to which features 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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Executing this method might modify the object, adding additional
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information to it, so the writer can be later accessed and processed
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within QGIS. It should be called just once, since a new call might
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result in previous data being replaced, thus rendering a previously
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obtained writer useless
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@param fields a dict of int-QgsField
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@param geomType a suitable geometry type, as it would be passed
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to a QgsVectorFileWriter constructor
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@param crs the crs of the layer to create
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@return writer instance of the vector 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("/SextanteQGIS/encoding", "System").toString()
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w = SextanteVectorWriter(self.value, self.encoding, fields, geomType, crs, options)
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self.memoryLayer = w.memLayer
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return w
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