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2628c480c5
Prevent changes to files that weren't changed between releases. This eases review of the changes between releases significantly.
155 lines
5.9 KiB
Python
Executable File
155 lines
5.9 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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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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