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118 lines
4.3 KiB
Python
118 lines
4.3 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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GdalAlgorithm.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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import os
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import re
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from qgis.PyQt.QtCore import QUrl, QCoreApplication
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from qgis.core import (QgsApplication,
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QgsVectorFileWriter,
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QgsProcessingUtils,
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QgsProcessingAlgorithm,
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QgsProject)
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from processing.core.GeoAlgorithm import GeoAlgorithm
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from processing.algs.gdal.GdalAlgorithmDialog import GdalAlgorithmDialog
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from processing.algs.gdal.GdalUtils import GdalUtils
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from processing.tools import dataobjects
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pluginPath = os.path.normpath(os.path.join(
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os.path.split(os.path.dirname(__file__))[0], os.pardir))
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class GdalAlgorithm(QgsProcessingAlgorithm):
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def __init__(self):
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super().__init__()
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def icon(self):
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return QgsApplication.getThemeIcon("/providerGdal.svg")
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def svgIconPath(self):
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return QgsApplication.iconPath("providerGdal.svg")
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def createInstance(self, config={}):
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return self.__class__()
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def createCustomParametersWidget(self, parent):
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return GdalAlgorithmDialog(self)
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def getConsoleCommands(self, parameters, context, feedback):
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return None
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def processAlgorithm(self, parameters, context, feedback):
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commands = self.getConsoleCommands(parameters, context, feedback)
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layers = QgsProcessingUtils.compatibleVectorLayers(QgsProject.instance())
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supported = QgsVectorFileWriter.supportedFormatExtensions()
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for i, c in enumerate(commands):
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for layer in layers:
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if layer.source() in c:
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exported = dataobjects.exportVectorLayer(layer, supported)
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exportedFileName = os.path.splitext(os.path.split(exported)[1])[0]
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c = c.replace(layer.source(), exported)
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if os.path.isfile(layer.source()):
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fileName = os.path.splitext(os.path.split(layer.source())[1])[0]
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c = re.sub('[\s]{}[\s]'.format(fileName), ' ' + exportedFileName + ' ', c)
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c = re.sub('[\s]{}'.format(fileName), ' ' + exportedFileName, c)
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c = re.sub('["\']{}["\']'.format(fileName), "'" + exportedFileName + "'", c)
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commands[i] = c
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GdalUtils.runGdal(commands, feedback)
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# auto generate outputs
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results = {}
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for o in self.outputDefinitions():
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results[o.name()] = parameters[o.name()]
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return results
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def helpUrl(self):
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helpPath = GdalUtils.gdalHelpPath()
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if helpPath == '':
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return None
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if os.path.exists(helpPath):
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return QUrl.fromLocalFile(os.path.join(helpPath, '{}.html'.format(self.commandName()))).toString()
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else:
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return helpPath + '{}.html'.format(self.commandName())
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def commandName(self):
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parameters = {}
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for output in self.outputs:
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output.setValue("dummy")
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for param in self.parameterDefinitions():
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parameters[param.name()] = "1"
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name = self.getConsoleCommands(parameters)[0]
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if name.endswith(".py"):
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name = name[:-3]
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return name
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def tr(self, string, context=''):
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if context == '':
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context = self.__class__.__name__
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return QCoreApplication.translate(context, string)
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