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159 lines
6.0 KiB
Python
Executable File
159 lines
6.0 KiB
Python
Executable File
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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SagaAlgorithmProvider.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 qgis.PyQt.QtCore import QCoreApplication
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from qgis.core import (Qgis,
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QgsProcessingProvider,
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QgsProcessingUtils,
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QgsApplication,
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QgsMessageLog)
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from processing.core.ProcessingConfig import ProcessingConfig, Setting
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from processing.tools.system import isWindows, isMac
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from .SagaAlgorithm import SagaAlgorithm
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from .SplitRGBBands import SplitRGBBands
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from . import SagaUtils
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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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REQUIRED_VERSION = '2.3.'
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class SagaAlgorithmProvider(QgsProcessingProvider):
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def __init__(self):
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super().__init__()
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self.algs = []
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def load(self):
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ProcessingConfig.settingIcons[self.name()] = self.icon()
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ProcessingConfig.addSetting(Setting("SAGA", 'ACTIVATE_SAGA',
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self.tr('Activate'), True))
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ProcessingConfig.addSetting(Setting("SAGA",
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SagaUtils.SAGA_IMPORT_EXPORT_OPTIMIZATION,
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self.tr('Enable SAGA Import/Export optimizations'), False))
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ProcessingConfig.addSetting(Setting("SAGA",
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SagaUtils.SAGA_LOG_COMMANDS,
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self.tr('Log execution commands'), True))
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ProcessingConfig.addSetting(Setting("SAGA",
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SagaUtils.SAGA_LOG_CONSOLE,
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self.tr('Log console output'), True))
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ProcessingConfig.readSettings()
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self.refreshAlgorithms()
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return True
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def unload(self):
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ProcessingConfig.removeSetting('ACTIVATE_SAGA')
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ProcessingConfig.removeSetting(SagaUtils.SAGA_LOG_CONSOLE)
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ProcessingConfig.removeSetting(SagaUtils.SAGA_LOG_COMMANDS)
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def isActive(self):
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return ProcessingConfig.getSetting('ACTIVATE_SAGA')
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def setActive(self, active):
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ProcessingConfig.setSettingValue('ACTIVATE_SAGA', active)
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def canBeActivated(self):
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version = SagaUtils.getInstalledVersion(True)
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if version is not None and version.startswith(REQUIRED_VERSION):
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return True
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return False
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def loadAlgorithms(self):
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version = SagaUtils.getInstalledVersion(True)
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if version is None:
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QgsMessageLog.logMessage(self.tr('Problem with SAGA installation: SAGA was not found or is not correctly installed'),
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self.tr('Processing'), Qgis.Critical)
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return
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if not version.startswith(REQUIRED_VERSION):
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QgsMessageLog.logMessage(self.tr('Problem with SAGA installation: unsupported SAGA version (found: {}, required: {}).').format(version, REQUIRED_VERSION),
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self.tr('Processing'),
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Qgis.Critical)
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return
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self.algs = []
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folder = SagaUtils.sagaDescriptionPath()
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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 = SagaAlgorithm(os.path.join(folder, descriptionFile))
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if alg.name().strip() != '':
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self.algs.append(alg)
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else:
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QgsMessageLog.logMessage(self.tr('Could not open SAGA algorithm: {}'.format(descriptionFile)),
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self.tr('Processing'), Qgis.Critical)
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except Exception as e:
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QgsMessageLog.logMessage(self.tr('Could not open SAGA algorithm: {}\n{}'.format(descriptionFile, str(e))),
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self.tr('Processing'), Qgis.Critical)
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self.algs.append(SplitRGBBands())
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for a in self.algs:
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self.addAlgorithm(a)
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def name(self):
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return 'SAGA'
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def longName(self):
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version = SagaUtils.getInstalledVersion()
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return 'SAGA ({})'.format(version) if version is not None else 'SAGA'
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def id(self):
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return 'saga'
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def defaultVectorFileExtension(self, hasGeometry=True):
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return 'shp' if hasGeometry else 'dbf'
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def defaultRasterFileExtension(self):
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return 'sdat'
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def supportedOutputRasterLayerExtensions(self):
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return ['sdat']
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def supportedOutputVectorLayerExtensions(self):
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return ['shp', 'dbf']
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def supportedOutputTableExtensions(self):
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return ['dbf']
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def supportsNonFileBasedOutput(self):
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"""
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SAGA Provider doesn't support non file based outputs
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"""
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return False
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def icon(self):
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return QgsApplication.getThemeIcon("/providerSaga.svg")
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def tr(self, string, context=''):
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if context == '':
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context = 'SagaAlgorithmProvider'
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return QCoreApplication.translate(context, string)
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