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- # ***** BEGIN LICENSE BLOCK *****
- # Version: MPL 1.1/GPL 2.0/LGPL 2.1
- #
- # The contents of this file are subject to the Mozilla Public License Version
- # 1.1 (the "License"); you may not use this file except in compliance with
- # the License. You may obtain a copy of the License at
- # http://www.mozilla.org/MPL/
- #
- # Software distributed under the License is distributed on an "AS IS" basis,
- # WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- # for the specific language governing rights and limitations under the
- # License.
- #
- # The Original Code is the Python Computer Graphics Kit.
- #
- # The Initial Developer of the Original Code is Matthias Baas.
- # Portions created by the Initial Developer are Copyright (C) 2004
- # the Initial Developer. All Rights Reserved.
- #
- # Contributor(s):
- #
- # Alternatively, the contents of this file may be used under the terms of
- # either the GNU General Public License Version 2 or later (the "GPL"), or
- # the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- # in which case the provisions of the GPL or the LGPL are applicable instead
- # of those above. If you wish to allow use of your version of this file only
- # under the terms of either the GPL or the LGPL, and not to allow others to
- # use your version of this file under the terms of the MPL, indicate your
- # decision by deleting the provisions above and replace them with the notice
- # and other provisions required by the GPL or the LGPL. If you do not delete
- # the provisions above, a recipient may use your version of this file under
- # the terms of any one of the MPL, the GPL or the LGPL.
- #
- # ***** END LICENSE BLOCK *****
- # $Id: preferences.py,v 1.1.1.1 2004/12/12 14:31:13 mbaas Exp $
-
- ## \file preferences.py
- ## \brief Contains the Preferences class.
-
- import sys, os, os.path, pickle
-
- # Preferences
- class Preferences(object):
- """This class stores arbitrary values persistently.
-
- This class can be used just like a dictionary.
- """
-
- def __init__(self, filename):
- """Constructor."""
-
- # If filename is no absolute path make it relative to the default
- # config file path
- if not os.path.isabs(filename):
- filename = os.path.join(configPath(), filename)
-
- self._prefs = {}
- self._filename = filename
-
- def __len__(self):
- return len(self._prefs)
-
- def __iter__(self):
- return self._prefs.iteritems()
-
- def __getitem__(self, key):
- if key in self._prefs:
- return self._prefs[key]
- else:
- return None
-
- def __setitem__(self, key, value):
- self._prefs[key]=value
-
- def __delitem__(self, key):
- if key in self._prefs:
- del self._prefs[key]
-
- def __contains__(self, item):
- return item in self._prefs
-
- def get(self, key, default=None):
- return self._prefs.get(key, default)
-
- # load
- def load(self):
- """Load the preferences.
-
- """
-
- f = open(self._filename)
- id = pickle.load(f)
- if id!=1:
- raise Exception, "Unknown config file format"
- self._prefs = pickle.load(f)
- f.close()
-
-
- # save
- def save(self):
- """Save the preferences.
-
- """
-
- self._preparePath(os.path.dirname(self._filename))
-
- f = open(self._filename, "w")
- pickle.dump(1, f)
- pickle.dump(self._prefs, f)
- f.close()
-
-
- ######################################################################
- ## protected:
-
- def _preparePath(self, path):
- """Prepare a path so that every directory on the path exists.
-
- Checks if the path exists and creates it if it does not exist.
- """
- if not os.path.exists(path):
- parent = os.path.dirname(path)
- if parent!="":
- self._preparePath(parent)
- os.mkdir(path)
-
- # "filename" property
-
- def _getFilename(self):
- """Return the filename.
-
- This method is used for retrieving the \a filename property.
-
- \return Filename (\c str).
- """
- return self._filename
-
- filename = property(_getFilename, None, None, "File name")
-
-
- ######################################################################
-
- def configPath(appname="gaia"):
- """Return the full path where config files are located.
-
- \todo Change "gaia" as default application name
- """
-
- # Windows? (XP)
- if sys.platform=="win32":
- if os.environ.has_key("APPDATA"):
- return os.path.abspath(os.path.join(os.environ["APPDATA"], appname.capitalize()))
- else:
- return None
- # Other
- else:
- if os.environ.has_key("HOME"):
- return os.path.abspath(os.environ["HOME"])
- else:
- return None
-
-
- ######################################################################
-
- if __name__=="__main__":
-
- print configPath()
-
-
-
-
-