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112 lines
4.7 KiB
Python
112 lines
4.7 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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GrassAlgorithmProvider.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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from qgis.PyQt.QtGui import QIcon
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from processing.core.ProcessingConfig import ProcessingConfig, Setting
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from processing.core.AlgorithmProvider import AlgorithmProvider
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from processing.core.ProcessingLog import ProcessingLog
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from .GrassUtils import GrassUtils
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from .GrassAlgorithm import GrassAlgorithm
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from .nviz import nviz
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from processing.tools.system import isMac, isWindows
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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 GrassAlgorithmProvider(AlgorithmProvider):
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def __init__(self):
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AlgorithmProvider.__init__(self)
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self.activate = False
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self.createAlgsList() # Preloading algorithms to speed up
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def initializeSettings(self):
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AlgorithmProvider.initializeSettings(self)
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if isWindows() or isMac():
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ProcessingConfig.addSetting(Setting(self.getDescription(),
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GrassUtils.GRASS_FOLDER, self.tr('GRASS folder'),
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GrassUtils.grassPath(), valuetype=Setting.FOLDER))
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if isWindows():
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ProcessingConfig.addSetting(Setting(self.getDescription(),
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GrassUtils.GRASS_WIN_SHELL, self.tr('Msys folder'),
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GrassUtils.grassWinShell(), valuetype=Setting.FOLDER))
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ProcessingConfig.addSetting(Setting(self.getDescription(),
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GrassUtils.GRASS_LOG_COMMANDS,
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self.tr('Log execution commands'), False))
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ProcessingConfig.addSetting(Setting(self.getDescription(),
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GrassUtils.GRASS_LOG_CONSOLE,
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self.tr('Log console output'), False))
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def unload(self):
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AlgorithmProvider.unload(self)
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if isWindows() or isMac():
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ProcessingConfig.removeSetting(GrassUtils.GRASS_FOLDER)
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ProcessingConfig.removeSetting(GrassUtils.GRASS_WIN_SHELL)
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ProcessingConfig.removeSetting(GrassUtils.GRASS_LOG_COMMANDS)
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ProcessingConfig.removeSetting(GrassUtils.GRASS_LOG_CONSOLE)
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def createAlgsList(self):
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self.preloadedAlgs = []
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folder = GrassUtils.grassDescriptionPath()
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for descriptionFile in os.listdir(folder):
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if descriptionFile.endswith('txt'):
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try:
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alg = GrassAlgorithm(os.path.join(folder, descriptionFile))
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if alg.name.strip() != '':
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self.preloadedAlgs.append(alg)
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else:
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ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
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self.tr('Could not open GRASS algorithm: %s' % descriptionFile))
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except Exception:
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ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
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self.tr('Could not open GRASS algorithm: %s' % descriptionFile))
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self.preloadedAlgs.append(nviz())
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def _loadAlgorithms(self):
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self.algs = self.preloadedAlgs
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def getDescription(self):
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return self.tr('GRASS commands')
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def getName(self):
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return 'grass'
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def getIcon(self):
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return QIcon(os.path.join(pluginPath, 'images', 'grass.svg'))
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def getSupportedOutputVectorLayerExtensions(self):
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return ['shp']
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def getSupportedOutputRasterLayerExtensions(self):
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return ['tif']
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def canBeActivated(self):
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return not bool(GrassUtils.checkGrassIsInstalled())
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