QGIS/python/plugins/processing/algs/saga/SagaAlgorithmProvider.py
volaya e9228b67c9 [processing] some SAGA fixes
-fixed raster export
-fixed version numbering when no saga installation is found
2015-01-20 11:41:27 +01:00

122 lines
4.9 KiB
Python

# -*- coding: utf-8 -*-
"""
***************************************************************************
SagaAlgorithmProvider.py
---------------------
Date : August 2012
Copyright : (C) 2012 by Victor Olaya
Email : volayaf at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from processing.core.AlgorithmProvider import AlgorithmProvider
from processing.core.ProcessingConfig import ProcessingConfig, Setting
from processing.core.ProcessingLog import ProcessingLog
from SagaAlgorithm212 import SagaAlgorithm212
from SagaAlgorithm213 import SagaAlgorithm213
from SplitRGBBands import SplitRGBBands
import SagaUtils
from processing.tools.system import *
class SagaAlgorithmProvider(AlgorithmProvider):
supportedVersions = {"2.1.2": ("2.1.2", SagaAlgorithm212),
"2.1.3": ("2.1.3", SagaAlgorithm213),
"2.1.4": ("2.1.3", SagaAlgorithm213)}
def __init__(self):
AlgorithmProvider.__init__(self)
self.activate = True
def initializeSettings(self):
AlgorithmProvider.initializeSettings(self)
if isWindows() or isMac():
ProcessingConfig.addSetting(Setting("SAGA",
SagaUtils.SAGA_FOLDER, self.tr('SAGA folder'), ''))
ProcessingConfig.addSetting(Setting("SAGA",
SagaUtils.SAGA_IMPORT_EXPORT_OPTIMIZATION,
self.tr('Enable SAGA Import/Export optimizations'), False))
ProcessingConfig.addSetting(Setting("SAGA",
SagaUtils.SAGA_LOG_COMMANDS,
self.tr('Log execution commands'), True))
ProcessingConfig.addSetting(Setting("SAGA",
SagaUtils.SAGA_LOG_CONSOLE,
self.tr('Log console output'), True))
def unload(self):
AlgorithmProvider.unload(self)
if isWindows() or isMac():
ProcessingConfig.removeSetting(SagaUtils.SAGA_FOLDER)
ProcessingConfig.removeSetting(SagaUtils.SAGA_LOG_CONSOLE)
ProcessingConfig.removeSetting(SagaUtils.SAGA_LOG_COMMANDS)
def _loadAlgorithms(self):
self.algs = []
version = SagaUtils.getSagaInstalledVersion(True)
if version is None:
ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
self.tr('Problem with SAGA installation: SAGA was not found or is not correctly installed'))
return
if version not in self.supportedVersions:
ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
self.tr('Problem with SAGA installation: installed SAGA version (%s) is not supported' % version))
return
folder = SagaUtils.sagaDescriptionPath()
folder = os.path.join(folder, self.supportedVersions[SagaUtils.getSagaInstalledVersion()][0])
for descriptionFile in os.listdir(folder):
if descriptionFile.endswith('txt'):
f = os.path.join(folder, descriptionFile)
self._loadAlgorithm(f)
self.algs.append(SplitRGBBands())
def _loadAlgorithm(self, descriptionFile):
try:
alg = self.supportedVersions[SagaUtils.getSagaInstalledVersion()][1](descriptionFile)
if alg.name.strip() != '':
self.algs.append(alg)
else:
ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
self.tr('Could not open SAGA algorithm: %s' % descriptionFile))
except Exception, e:
ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
self.tr('Could not open SAGA algorithm: %s\n%s' % (descriptionFile, str(e))))
def getDescription(self):
version = SagaUtils.getSagaInstalledVersion()
return 'SAGA (%s)' % version if version is not None else 'SAGA'
def getName(self):
return 'saga'
def getSupportedOutputVectorLayerExtensions(self):
return ['shp']
def getSupportedOutputRasterLayerExtensions(self):
return ['tif']
def getSupportedOutputTableLayerExtensions(self):
return ['dbf']
def getIcon(self):
return QIcon(os.path.dirname(__file__) + '/../../images/saga.png')