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GdalTools_utils.py
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GdalTools_utils.py
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# -*- coding: utf-8 -*-
"""
***************************************************************************
GdalTools_utils.py
---------------------
Date : June 2010
Copyright : (C) 2010 by Giuseppe Sucameli
Email : brush dot tyler 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__ = 'Giuseppe Sucameli'
__date__ = 'June 2010'
__copyright__ = '(C) 2010, Giuseppe Sucameli'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
# Utility functions
# -------------------------------------------------
# getLastUsedDir()
# setLastUsedDir( QString *file_or_dir path )
# -------------------------------------------------
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from qgis.core import *
from qgis.gui import *
from osgeo import gdal, ogr
from osgeo.gdalconst import *
import os
# to know the os
import platform
import sys
import string
import re
# Escapes arguments and return them joined in a string
def escapeAndJoin(strList):
joined = ''
for s in strList:
if s.find(" ") is not -1:
escaped = '"' + s.replace('\\', '\\\\').replace('"', '\\"') + '"'
else:
escaped = s
joined += escaped + " "
return joined.strip()
# Retrieves last used dir from persistent settings
def getLastUsedDir():
settings = QSettings()
lastProjectDir = settings.value( "/UI/lastProjectDir", ".", type=str )
return settings.value( "/GdalTools/lastUsedDir", lastProjectDir, type=str )
# Stores last used dir in persistent settings
def setLastUsedDir(filePath):
settings = QSettings()
fileInfo = QFileInfo(filePath)
if fileInfo.isDir():
dirPath = fileInfo.filePath()
else:
dirPath = fileInfo.path()
settings.setValue( "/GdalTools/lastUsedDir", dirPath )
# Retrieves GDAL binaries location
def getGdalBinPath():
settings = QSettings()
return settings.value( "/GdalTools/gdalPath", u"" )
# Stores GDAL binaries location
def setGdalBinPath( path ):
settings = QSettings()
settings.setValue( "/GdalTools/gdalPath", path )
# Retrieves GDAL python modules location
def getGdalPymodPath():
settings = QSettings()
return settings.value( "/GdalTools/gdalPymodPath", u"" )
# Stores GDAL python modules location
def setGdalPymodPath( path ):
settings = QSettings()
settings.setValue( "/GdalTools/gdalPymodPath", path )
# Retrieves GDAL help files location
def getHelpPath():
settings = QSettings()
return settings.value( "/GdalTools/helpPath", u"" )
# Stores GDAL help files location
def setHelpPath( path ):
settings = QSettings()
settings.setValue( "/GdalTools/helpPath", path )
# Retrieves last used encoding from persistent settings
def getLastUsedEncoding():
settings = QSettings()
return settings.value( "/UI/encoding", u"System" )
# Stores last used encoding in persistent settings
def setLastUsedEncoding(encoding):
settings = QSettings()
settings.setValue( "/UI/encoding", encoding)
def getRasterExtensions():
formats = FileFilter.allRastersFilter().split( ";;" )
extensions = []
for f in formats:
if string.find(f, "*.bt" ) is not -1 or string.find(f, "*.mpr" ) is not -1: # Binary Terrain or ILWIS
continue
extensions.extend( FileFilter.getFilterExtensions( f ) )
return extensions
def getVectorExtensions():
formats = FileFilter.allVectorsFilter().split( ";;" )
extensions = []
for f in formats:
extensions.extend( FileFilter.getFilterExtensions( f ) )
return extensions
class LayerRegistry(QObject):
_instance = None
_iface = None
@staticmethod
def instance():
if LayerRegistry._instance == None:
LayerRegistry._instance = LayerRegistry()
return LayerRegistry._instance
@staticmethod
def setIface(iface):
LayerRegistry._iface = iface
layers = []
def __init__(self):
QObject.__init__(self)
if LayerRegistry._instance != None:
return
LayerRegistry.layers = self.getAllLayers()
LayerRegistry._instance = self
self.connect(QgsMapLayerRegistry.instance(), SIGNAL("removeAll()"), self.removeAllLayers)
self.connect(QgsMapLayerRegistry.instance(), SIGNAL("layerWasAdded(QgsMapLayer *)"), self.layerAdded)
self.connect(QgsMapLayerRegistry.instance(), SIGNAL("layerWillBeRemoved(QString)"), self.removeLayer)
def getAllLayers(self):
if LayerRegistry._iface and hasattr(LayerRegistry._iface, 'legendInterface'):
return LayerRegistry._iface.legendInterface().layers()
return QgsMapLayerRegistry.instance().mapLayers().values()
def layerAdded(self, layer):
LayerRegistry.layers.append( layer )
self.emit( SIGNAL( "layersChanged" ) )
def removeLayer(self, layerId):
LayerRegistry.layers = filter( lambda x: x.id() != layerId, LayerRegistry.layers)
self.emit( SIGNAL( "layersChanged" ) )
def removeAllLayers(self):
LayerRegistry.layers = []
self.emit( SIGNAL( "layersChanged" ) )
@classmethod
def isRaster(self, layer):
# only gdal raster layers
if layer.type() != layer.RasterLayer:
return False
if layer.providerType() != 'gdal':
return False
return True
def getRasterLayers(self):
return filter( self.isRaster, LayerRegistry.layers )
@classmethod
def isVector(self, layer):
if layer.type() != layer.VectorLayer:
return False
if layer.providerType() != 'ogr':
return False
return True
def getVectorLayers(self):
return filter( self.isVector, LayerRegistry.layers )
def getRasterFiles(path, recursive=False):
rasters = []
if not QFileInfo(path).exists():
return rasters
# TODO remove *.aux.xml
_filter = getRasterExtensions()
workDir = QDir( path )
workDir.setFilter( QDir.Files | QDir.NoSymLinks | QDir.NoDotAndDotDot )
workDir.setNameFilters( _filter )
files = workDir.entryList()
for f in files:
rasters.append( path + "/" + f )
if recursive:
for myRoot, myDirs, myFiles in os.walk( unicode(path) ):
for dir in myDirs:
workDir = QDir( myRoot + "/" + dir )
workDir.setFilter( QDir.Files | QDir.NoSymLinks | QDir.NoDotAndDotDot )
workDir.setNameFilters( _filter )
workFiles = workDir.entryList()
for f in workFiles:
rasters.append( myRoot + "/" + dir + "/" + f )
return rasters
def fillRasterOutputFormat(aFilter = None, filename = None):
shortName = ''
if aFilter != None:
supportedRasters = GdalConfig.getSupportedRasters()
filterName = re.sub('^.*\] ', '', FileFilter.getFilterName( aFilter ))
if supportedRasters.has_key( filterName ):
return supportedRasters[ filterName ][ "SHORTNAME" ]
shortName = GdalConfig.SupportedRasters.long2ShortName(filterName)
if shortName == '' and filename != None:
shortName = GdalConfig.SupportedRasters.filename2ShortName(filename)
if shortName == '':
shortName = "GTiff"
return shortName
def fillVectorOutputFormat(aFilter = None, filename = None):
shortName = ''
if aFilter != None:
supportedVectors = GdalConfig.getSupportedVectors()
filterName = re.sub('^.*\] ', '', FileFilter.getFilterName( aFilter ))
if supportedVectors.has_key( filterName ):
return supportedVectors[ filterName ][ "SHORTNAME" ]
pass #shortName = GdalConfig.SupportedVectors.long2ShortName(filterName)
if shortName == '' and filename != None:
pass #shortName = GdalConfig.SupportedVectors.filename2ShortName(filename)
if shortName == '':
shortName = "ESRI Shapefile"
return shortName
class UnsupportedOGRFormat(Exception):
def __init__(self):
msg = QCoreApplication.translate( "GdalTools", "The selected file is not a supported OGR format" )
Exception.__init__(self, msg)
def getVectorFields(vectorFile):
hds = ogr.Open( unicode(vectorFile).encode('utf8') )
if hds == None:
raise UnsupportedOGRFormat()
fields = []
names = []
layer = hds.GetLayer(0)
defn = layer.GetLayerDefn()
for i in range(defn.GetFieldCount()):
fieldDefn = defn.GetFieldDefn(i)
fieldType = fieldDefn.GetType()
if fieldType == 0 or fieldType == 2:
fields.append(fieldDefn)
names.append(fieldDefn.GetName())
return (fields, names)
# get raster SRS if possible
def getRasterSRS( parent, fileName ):
processSRS = QProcess( parent )
processSRS.start( "gdalinfo", [fileName], QIODevice.ReadOnly )
arr = QByteArray()
if processSRS.waitForFinished():
arr = processSRS.readAllStandardOutput()
processSRS.close()
arr = str(arr)
if arr == '':
return ''
info = string.split( arr, sep="\n" )
if len(info) == 0:
return ''
for elem in info:
m = re.match("^\s*AUTHORITY\[\"([a-z]*[A-Z]*)\",\"(\d*)\"\]", elem)
if m and len(m.groups()) == 2:
return '%s:%s' % (m.group(1), m.group(2))
return ''
def getRasterExtent(parent, fileName):
processSRS = QProcess( parent )
processSRS.start( "gdalinfo", [fileName], QIODevice.ReadOnly )
arr = QByteArray()
if processSRS.waitForFinished():
arr = processSRS.readAllStandardOutput()
processSRS.close()
arr = str(arr)
if arr == '':
return
ulCoord = lrCoord = ''
xUL = yLR = xLR = yUL = 0
info = string.split( arr, sep="\n" )
for elem in info:
m = re.match("^Upper\sLeft.*", elem)
if m:
ulCoord = m.group(0).strip()
ulCoord = ulCoord[string.find(ulCoord,"(") + 1 : string.find(ulCoord,")") - 1].split( "," )
xUL = float(ulCoord[0])
yUL = float(ulCoord[1])
continue
m = re.match("^Lower\sRight.*", elem)
if m:
lrCoord = m.group(0).strip()
lrCoord = lrCoord[string.find(lrCoord,"(") + 1 : string.find(lrCoord,")") - 1].split( "," )
xLR = float(lrCoord[0])
yLR = float(lrCoord[1])
continue
return QgsRectangle( xUL, yLR, xLR, yUL )
# This class is used to replace the QFileDialog class.
# Its static methods are used in place of the respective QFileDialog ones to:
# 1. set the last used directory
# 2. append the selected extension to the file name
# 3. bypass the following bug:
# when you use the 'filter' argument, the dialog is enlarged up to the longest filter length,
# so sometimes the dialog excedes the screen width
class FileDialog:
@classmethod
def getDialog(self, parent = None, caption = '', acceptMode = QFileDialog.AcceptOpen, fileMode = QFileDialog.ExistingFile, filter = '', selectedFilter = None, useEncoding = False):
if useEncoding:
dialog = QgsEncodingFileDialog(parent, caption, getLastUsedDir(), filter, getLastUsedEncoding())
else:
dialog = QFileDialog(parent, caption, getLastUsedDir(), filter)
dialog.setFileMode(fileMode)
dialog.setAcceptMode(acceptMode)
if selectedFilter != None:
dialog.selectNameFilter(selectedFilter)
if not dialog.exec_():
if useEncoding:
return ('', None)
return ''
# change the selected filter value
if selectedFilter != None:
selectedFilter = dialog.selectedNameFilter()
# save the last used dir and return the selected files
files = dialog.selectedFiles()
if files != '':
setLastUsedDir(files[0])
if fileMode != QFileDialog.ExistingFiles:
files = files[0]
# append the extension if not already present
if fileMode == QFileDialog.AnyFile:
firstExt = None
for ext in FileFilter.getFilterExtensions(dialog.selectedNameFilter()):
if FileFilter.filenameMatchesFilterExt(files, ext):
firstExt = None
break
if firstExt == None:
firstExt = ext
if firstExt != None:
if firstExt.startswith('*'):
files += firstExt[1:]
if useEncoding:
encoding = dialog.encoding()
# encoding setted yet by QgsEncodingFileDialog
#setLastUsedEncoding(encoding)
return (files, encoding)
return files
@classmethod
def getOpenFileNames(self, parent = None, caption = '', filter = '', selectedFilter = None, useEncoding = False):
return self.getDialog(parent, caption, QFileDialog.AcceptOpen, QFileDialog.ExistingFiles, filter, selectedFilter, useEncoding)
@classmethod
def getOpenFileName(self, parent = None, caption = '', filter = '', selectedFilter = None, useEncoding = False):
return self.getDialog(parent, caption, QFileDialog.AcceptOpen, QFileDialog.ExistingFile, filter, selectedFilter, useEncoding)
@classmethod
def getSaveFileName(self, parent = None, caption = '', filter = '', selectedFilter = None, useEncoding = False):
return self.getDialog(parent, caption, QFileDialog.AcceptSave, QFileDialog.AnyFile, filter, selectedFilter, useEncoding)
@classmethod
def getExistingDirectory(self, parent = None, caption = '', useEncoding = False):
return self.getDialog(parent, caption, QFileDialog.AcceptOpen, QFileDialog.DirectoryOnly, '', None, useEncoding)
class FileFilter:
@classmethod
def getFilter(self, typeName):
settings = QSettings()
return settings.value( "/GdalTools/" + typeName + "FileFilter", u"" )
@classmethod
def setFilter(self, typeName, aFilter):
settings = QSettings()
settings.setValue( "/GdalTools/" + typeName + "FileFilter", aFilter )
# stores the supported raster file filter
rastersFilter = ''
# Retrieves the filter for supported raster files
@classmethod
def allRastersFilter(self):
if self.rastersFilter == '':
self.rastersFilter = QgsProviderRegistry.instance().fileRasterFilters()
# workaround for QGis < 1.5 (see #2376)
# removed as this is a core plugin QGis >= 1.9
return self.rastersFilter
@classmethod
def lastUsedRasterFilter(self):
return self.getFilter("lastRaster")
@classmethod
def setLastUsedRasterFilter(self, aFilter):
self.setFilter("lastRaster", aFilter)
# stores the supported vectors file filter
vectorsFilter = ''
# Retrieves the filter for supported vector files
@classmethod
def allVectorsFilter(self):
if self.vectorsFilter == '':
self.vectorsFilter = QgsProviderRegistry.instance().fileVectorFilters()
return self.vectorsFilter
@classmethod
def lastUsedVectorFilter(self):
return self.getFilter("lastVector")
@classmethod
def setLastUsedVectorFilter(self, aFilter):
self.setFilter("lastVector", aFilter)
# Retrieves the extensions list from a filter string
@classmethod
def getFilterExtensions(self, aFilter):
extList = []
# foreach format in filter string
for f in aFilter.split( ";;" ):
# gets the list of extensions from the filter
exts = re.sub('\).*$', '', re.sub('^.*\(', '', f))
# if there is no extensions or the filter matches all, then return an empty list
# otherwise return the list of estensions
if exts != '' and exts != "*" and exts != "*.*":
extList.extend(exts.split(" "))
return extList
@classmethod
def getFilterName(self, aFilter):
return string.strip(re.sub('\ \(.*$', '', aFilter))
@classmethod
def filenameMatchesFilterExt(self, fileName, ext):
return re.match( '.'+str(ext), fileName ) is not None
# Retrieves gdal information
class GdalConfig:
# retrieves and return the installed gdal version
@classmethod
def version(self):
return Version(gdal.VersionInfo("RELEASE_NAME"))
@classmethod
def versionNum(self):
return int(gdal.VersionInfo("VERSION_NUM"))
# store the supported rasters info
supportedRasters = None
# retrieve the supported rasters info
@classmethod
def getSupportedRasters(self):
if self.supportedRasters != None:
return self.supportedRasters
# first get the GDAL driver manager
if gdal.GetDriverCount() == 0:
gdal.AllRegister()
self.supportedRasters = dict()
jp2Driver = None
# for each loaded GDAL driver
for i in range(gdal.GetDriverCount()):
driver = gdal.GetDriver(i)
if driver == None:
QgsLogger.warning("unable to get driver " + str(i))
continue
# now we need to see if the driver is for something currently
# supported; if not, we give it a miss for the next driver
longName = string.strip(re.sub('\(.*$', '', driver.LongName))
shortName = string.strip(re.sub('\(.*$', '', driver.ShortName))
extensions = ''
description = driver.GetDescription()
glob = []
metadata = driver.GetMetadata()
if metadata.has_key(gdal.DMD_EXTENSION):
extensions = str(metadata[gdal.DMD_EXTENSION])
if longName != '':
if extensions != '':
# XXX add check for SDTS; in that case we want (*CATD.DDF)
#TODO fix and test
#glob.append( QString("*." + extensions.replace("/", " *.")).split(" "))
glob.append(string.split("*." + string.replace(extensions,"/", " *."), sep=(" ")))
# Add only the first JP2 driver found to the filter list (it's the one GDAL uses)
if description == "JPEG2000" or description.startswith("JP2"): # JP2ECW, JP2KAK, JP2MrSID
if jp2Driver != None:
continue # skip if already found a JP2 driver
jp2Driver = driver # first JP2 driver found
glob.append("*.j2k") # add alternate extension
elif description == "GTiff":
glob.append("*.tiff")
elif description == "JPEG":
glob.append("*.jpeg")
else:
# USGS DEMs use "*.dem"
if description.startswith( "USGSDEM" ):
glob.append("*.dem")
elif description.startswith( "DTED" ):
# DTED use "*.dt0"
glob.append("*.dt0")
elif description.startswith( "MrSID" ):
# MrSID use "*.sid"
glob.append("*.sid")
else:
continue
self.supportedRasters[longName] = {'EXTENSIONS': glob, 'LONGNAME': longName, 'SHORTNAME': shortName, 'DESCRIPTION': description}
return self.supportedRasters
# store the supported vectors info
supportedVectors = None
# retrieve the supported vectors info
@classmethod
def getSupportedVectors(self):
if self.supportedVectors != None:
return self.supportedVectors
# first get the OGR driver manager
QgsApplication.registerOgrDrivers()
self.supportedVectors = dict()
# for each loaded OGR driver
for i in range(ogr.GetDriverCount()):
driver = ogr.GetDriver(i)
if driver == None:
QgsLogger.warning("unable to get driver " + str(i))
continue
driverName = driver.GetName()
longName = ''
glob = []
if driverName.startswith( "AVCBin" ):
pass #myDirectoryDrivers += "Arc/Info Binary Coverage,AVCBin"
elif driverName.startswith( "AVCE00" ):
longName = "Arc/Info ASCII Coverage"
glob.append("*.e00")
elif driverName.startswith( "BNA" ):
longName = "Atlas BNA"
glob.append("*.bna")
elif driverName.startswith( "CSV" ):
longName = "Comma Separated Value"
glob.append("*.csv")
elif driverName.startswith( "DODS" ):
pass #myProtocolDrivers += "DODS/OPeNDAP,DODS"
elif driverName.startswith( "PGeo" ):
pass #myDatabaseDrivers += "ESRI Personal GeoDatabase,PGeo"
# on Windows add a pair to the dict for this driver
if platform.system() == "Windows":
longName = "ESRI Personal GeoDatabase"
glob.append("*.mdb")
elif driverName.startswith( "SDE" ):
pass #myDatabaseDrivers += "ESRI ArcSDE,SDE"
elif driverName.startswith( "ESRI" ):
longName = "ESRI Shapefiles"
glob.append("*.shp")
elif driverName.startswith( "FMEObjects Gateway" ):
longName = "FMEObjects Gateway"
glob.append("*.fdd")
elif driverName.startswith( "GeoJSON" ):
pass #myProtocolDrivers += "GeoJSON,GeoJSON"
longName = "GeoJSON"
glob.append("*.geojson")
elif driverName.startswith( "GeoRSS" ):
longName = "GeoRSS"
glob.append("*.xml")
elif driverName.startswith( "GML" ):
longName = "Geography Markup Language"
glob.append("*.gml")
elif driverName.startswith( "GMT" ):
longName = "GMT"
glob.append("*.gmt")
elif driverName.startswith( "GPX" ):
longName = "GPX"
glob.append("*.gpx")
elif driverName.startswith( "GRASS" ):
pass #myDirectoryDrivers += "Grass Vector,GRASS"
elif driverName.startswith( "IDB" ):
pass #myDatabaseDrivers += "Informix DataBlade,IDB"
elif driverName.startswith( "Interlis 1" ):
longName = "INTERLIS 1"
glob.append("*.itf")
glob.append("*.xml")
glob.append("*.ili")
elif driverName.startswith( "Interlis 2" ):
longName = "INTERLIS 2"
glob.append("*.itf")
glob.append("*.xml")
glob.append("*.ili")
elif driverName.startswith( "INGRES" ):
pass #myDatabaseDrivers += "INGRES,INGRES"
elif driverName.startswith( "KML" ):
longName = "KML"
glob.append("*.kml")
elif driverName.startswith( "MapInfo File" ):
longName = "Mapinfo File"
glob.append("*.mif")
glob.append("*.tab")
elif driverName.startswith( "DGN" ):
longName = "Microstation DGN"
glob.append("*.dgn")
elif driverName.startswith( "MySQL" ):
pass #myDatabaseDrivers += "MySQL,MySQL"
elif driverName.startswith( "OCI" ):
pass #myDatabaseDrivers += "Oracle Spatial,OCI"
elif driverName.startswith( "ODBC" ):
pass #myDatabaseDrivers += "ODBC,ODBC"
elif driverName.startswith( "OGDI" ):
pass #myDatabaseDrivers += "OGDI Vectors,OGDI"
elif driverName.startswith( "PostgreSQL" ):
pass #myDatabaseDrivers += "PostgreSQL,PostgreSQL"
elif driverName.startswith( "S57" ):
longName = "S-57 Base file"
glob.append("*.000")
elif driverName.startswith( "SDTS" ):
longName = "Spatial Data Transfer Standard"
glob.append("*catd.ddf")
elif driverName.startswith( "SQLite" ):
longName = "SQLite"
glob.append("*.sqlite")
elif driverName.startswith( "UK .NTF" ):
pass #myDirectoryDrivers += "UK. NTF,UK. NTF"
elif driverName.startswith( "TIGER" ):
pass #myDirectoryDrivers += "U.S. Census TIGER/Line,TIGER"
elif driverName.startswith( "VRT" ):
longName = "VRT - Virtual Datasource "
glob.append("*.vrt")
elif driverName.startswith( "XPlane" ):
longName = "X-Plane/Flighgear"
glob.append("apt.dat")
glob.append("nav.dat")
glob.append("fix.dat")
glob.append("awy.dat")
longName = string.strip(longName)
if longName =='':
continue
self.supportedVectors[longName] = {'EXTENSIONS': glob, 'LONGNAME': longName, 'SHORTNAME': driverName}
return self.supportedVectors
class SupportedRasters:
dict_long2shortName = dict()
# retrieve the raster format short name by long format name
@classmethod
def long2ShortName(self, longName):
if longName == '':
return ''
if self.dict_long2shortName.has_key(longName):
return self.dict_long2shortName[longName]
# first get the GDAL driver manager
if gdal.GetDriverCount() == 0:
gdal.AllRegister()
shortName = ''
# for each loaded GDAL driver
for i in range(gdal.GetDriverCount()):
driver = gdal.GetDriver(i)
if driver == None:
continue
# if this is the driver we searched for then return its short name
if FileFilter.getFilterName(driver.LongName) == longName:
shortName = FileFilter.getFilterName(driver.ShortName)
self.dict_long2shortName[longName] = shortName
break
return shortName
# retrieve the raster format short name by using the file name extension
@classmethod
def filename2ShortName(self, fileName):
if fileName == '':
return ''
shortName = ''
# for each raster format search for the file extension
formats = FileFilter.allRastersFilter().split( ";;" )
for f in formats:
for ext in FileFilter.getFilterExtensions(f):
if FileFilter.filenameMatchesFilterExt(fileName, ext):
longName = FileFilter.getFilterName(f)
shortName = self.long2ShortName(longName)
break
if not shortName == '':
break
return shortName
# class which allows to create version objects and compare them
class Version:
def __init__(self, ver):
self.vers = ('0', '0', '0')
if isinstance(ver, Version):
self.vers = ver.vers
elif isinstance(ver, tuple) or isinstance(ver, list):
self.vers = map(str, ver)
elif isinstance(ver, str):
self.vers = self.string2vers(ver)
@staticmethod
def string2vers(string):
vers = ['0', '0', '0']
nums = str(string).split(".")
if len(nums) > 0:
vers[0] = nums[0]
if len(nums) > 1:
vers[1] = nums[1]
if len(nums) > 2:
vers[2] = nums[2]
return (vers[0], vers[1], vers[2])
def __cmp__(self, other):
if not isinstance(other, Version):
other = Version(other)
if self.vers > other.vers:
return 1
if self.vers < other.vers:
return -1
return 0
def __str__(self):
return ".".join(self.vers)
def setProcessEnvironment(process):
envvar_list = {
"PATH" : getGdalBinPath(),
"PYTHONPATH" : getGdalPymodPath(),
"GDAL_FILENAME_IS_UTF8" : "NO"
}
sep = os.pathsep
for name, val in envvar_list.iteritems():
if val == None or val == "":
continue
envval = os.getenv(name)
if envval == None or envval == "":
envval = str(val)
elif not QString( envval ).split( sep ).contains( val, Qt.CaseInsensitive ):
envval += "%s%s" % (sep, str(val))
else:
envval = None
if envval != None:
os.putenv( name, envval )
if False: # not needed because os.putenv() has already updated the environment for new child processes
env = QProcess.systemEnvironment()
if env.contains( QRegExp( "^%s=(.*)" % name, Qt.CaseInsensitive ) ):
env.replaceInStrings( QRegExp( "^%s=(.*)" % name, Qt.CaseInsensitive ), "%s=\\1%s%s" % (name, sep, gdalPath) )
else:
env.append( "%s=%s" % (name, val))
process.setEnvironment( env )
def setMacOSXDefaultEnvironment():
# fix bug #3170: many GDAL Tools don't work in OS X standalone
if platform.system() != "Darwin":
return
# QgsApplication.prefixPath() contains the path to qgis executable (i.e. .../Qgis.app/MacOS)
# get the path to Qgis application folder
qgis_app = u"%s/.." % QgsApplication.prefixPath()
qgis_app = QDir( qgis_app ).absolutePath()
qgis_bin = u"%s/bin" % QgsApplication.prefixPath() # path to QGis bin folder
qgis_python = u"%s/Resources/python" % qgis_app # path to QGis python folder
# path to the GDAL framework within the Qgis application folder (QGis standalone only)
qgis_standalone_gdal_path = u"%s/Frameworks/GDAL.framework" % qgis_app
# path to the GDAL framework when installed as external framework
gdal_versionsplit = str(GdalConfig.version()).split('.')
gdal_base_path = u"/Library/Frameworks/GDAL.framework/Versions/%s.%s" % (gdal_versionsplit[0], gdal_versionsplit[1])
if os.path.exists( qgis_standalone_gdal_path ): # qgis standalone
# GDAL executables are in the QGis bin folder
if getGdalBinPath() == '':
setGdalBinPath( qgis_bin )
# GDAL pymods are in the QGis python folder
if getGdalPymodPath() == '':
setGdalPymodPath( qgis_python )
# GDAL help is in the framework folder
if getHelpPath() == '':
setHelpPath( u"%s/Resources/doc" % qgis_standalone_gdal_path )
elif os.path.exists( gdal_base_path ):
# all GDAL parts are in the GDAL framework folder
if getGdalBinPath() == '':
setGdalBinPath( u"%s/Programs" % gdal_base_path )
if getGdalPymodPath() == '':
setGdalPymodPath( u"%s/Python/%s.%s/site-packages" % (gdal_base_path, sys.version_info[0], sys.version_info[1]) )
if getHelpPath() == '':
setHelpPath( u"%s/Resources/doc" % gdal_base_path )
# setup the MacOSX path to both GDAL executables and python modules
if platform.system() == "Darwin":
setMacOSXDefaultEnvironment()