1 files changed, 127 insertions, 0 deletions
diff --git a/gnuradio-runtime/python/gnuradio/gr/prefs.py b/gnuradio-runtime/python/gnuradio/gr/prefs.py
new file mode 100644
index 0000000000..25fa8cd6ae
--- /dev/null
+++ b/gnuradio-runtime/python/gnuradio/gr/prefs.py
@@ -0,0 +1,127 @@
+#
+# Copyright 2006,2009 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio 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 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+import gnuradio_core as gsp
+_prefs_base = gsp.gr_prefs
+
+
+import ConfigParser
+import os
+import os.path
+import sys
+import glob
+
+
+def _user_prefs_filename():
+    return os.path.expanduser('~/.gnuradio/config.conf')
+
+def _sys_prefs_dirname():
+    return gsp.prefsdir()
+
+def _bool(x):
+    """
+    Try to coerce obj to a True or False
+    """
+    if isinstance(x, bool):
+        return x
+    if isinstance(x, (float, int)):
+        return bool(x)
+    raise TypeError, x
+
+
+class _prefs(_prefs_base):
+    """
+    Derive our 'real class' from the stubbed out base class that has support
+    for SWIG directors.  This allows C++ code to magically and transparently
+    invoke the methods in this python class.
+    """
+    def __init__(self):
+        _prefs_base.__init__(self)
+        self.cp = ConfigParser.RawConfigParser()
+        self.__getattr__ = lambda self, name: getattr(self.cp, name)
+
+    def _sys_prefs_filenames(self):
+        dir = _sys_prefs_dirname()
+        try:
+            fnames = glob.glob(os.path.join(dir, '*.conf'))
+        except (IOError, OSError):
+            return []
+        fnames.sort()
+        return fnames
+
+    def _read_files(self):
+        filenames = self._sys_prefs_filenames()
+        filenames.append(_user_prefs_filename())
+        #print "filenames: ", filenames
+        self.cp.read(filenames)
+
+    # ----------------------------------------------------------------
+    # These methods override the C++ virtual methods of the same name
+    # ----------------------------------------------------------------
+    def has_section(self, section):
+        return self.cp.has_section(section)
+
+    def has_option(self, section, option):
+        return self.cp.has_option(section, option)
+
+    def get_string(self, section, option, default_val):
+        try:
+            return self.cp.get(section, option)
+        except:
+            return default_val
+
+    def get_bool(self, section, option, default_val):
+        try:
+            return self.cp.getboolean(section, option)
+        except:
+            return default_val
+
+    def get_long(self, section, option, default_val):
+        try:
+            return self.cp.getint(section, option)
+        except:
+            return default_val
+
+    def get_double(self, section, option, default_val):
+        try:
+            return self.cp.getfloat(section, option)
+        except:
+            return default_val
+    # ----------------------------------------------------------------
+    #              End override of C++ virtual methods
+    # ----------------------------------------------------------------
+
+
+_prefs_db = _prefs()
+
+# if GR_DONT_LOAD_PREFS is set, don't load them.
+# (make check uses this to avoid interactions.)
+if os.getenv("GR_DONT_LOAD_PREFS", None) is None:
+    _prefs_db._read_files()
+
+
+_prefs_base.set_singleton(_prefs_db)    # tell C++ what instance to use
+
+def prefs():
+    """
+    Return the global preference data base
+    """
+    return _prefs_db