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106 lines
4.7 KiB
Python
106 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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from sextante.grass.nviz import nviz
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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 PyQt4.QtCore import *
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from PyQt4.QtGui import *
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from sextante.core.SextanteConfig import SextanteConfig, Setting
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from sextante.core.AlgorithmProvider import AlgorithmProvider
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from sextante.core.SextanteLog import SextanteLog
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from sextante.grass.GrassUtils import GrassUtils
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from sextante.grass.GrassAlgorithm import GrassAlgorithm
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from sextante.core.SextanteUtils import SextanteUtils
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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.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 SextanteUtils.isWindows() or SextanteUtils.isMac():
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SextanteConfig.addSetting(Setting(self.getDescription(), GrassUtils.GRASS_FOLDER, "GRASS folder", GrassUtils.grassPath()))
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SextanteConfig.addSetting(Setting(self.getDescription(), GrassUtils.GRASS_WIN_SHELL, "Msys folder", GrassUtils.grassWinShell()))
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SextanteConfig.addSetting(Setting(self.getDescription(), GrassUtils.GRASS_LOG_COMMANDS, "Log execution commands", False))
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SextanteConfig.addSetting(Setting(self.getDescription(), GrassUtils.GRASS_LOG_CONSOLE, "Log console output", False))
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def unload(self):
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AlgorithmProvider.unload(self)
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if SextanteUtils.isWindows() or SextanteUtils.isMac():
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SextanteConfig.removeSetting(GrassUtils.GRASS_FOLDER)
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SextanteConfig.removeSetting(GrassUtils.GRASS_WIN_SHELL)
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SextanteConfig.removeSetting(GrassUtils.GRASS_LOG_COMMANDS)
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SextanteConfig.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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SextanteLog.addToLog(SextanteLog.LOG_ERROR, "Could not open GRASS algorithm: " + descriptionFile)
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except Exception,e:
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SextanteLog.addToLog(SextanteLog.LOG_ERROR, "Could not open GRASS algorithm: " + 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 "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.dirname(__file__) + "/../images/grass.png")
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def getPostProcessingErrorMessage(self, wrongLayers):
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html = AlgorithmProvider.getPostProcessingErrorMessage(self, wrongLayers)
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msg = GrassUtils.checkGrassIsInstalled(True)
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html += ("<p>This algorithm requires GRASS to be run. A test to check if GRASS is correctly installed "
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"and configured in your system has been performed, with the following result:</p><ul><i>")
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if msg is None:
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html += "GRASS seems to be correctly installed and configured</li></ul>"
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else:
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html += msg + "</i></li></ul>"
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html += '<p><a href= "http://docs.qgis.org/html/en/docs/user_manual/sextante/3rdParty.html">Click here</a> to know more about how to install and configure GRASS to be used with SEXTANTE</p>'
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return html
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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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