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#!/usr/bin/env python
"""
Copyright 2016 Free Software Foundation, Inc.
This file is part of GNU Radio
GNU Radio Companion 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.
GNU Radio Companion 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
"""
import os
import sys
import warnings
GR_IMPORT_ERROR_MESSAGE = """\
Cannot import gnuradio.
Is the model path environment variable set correctly?
All OS: PYTHONPATH
Is the library path environment variable set correctly?
Linux: LD_LIBRARY_PATH
Windows: PATH
MacOSX: DYLD_LIBRARY_PATH
"""
def die(error, message):
msg = "{0}\n\n({1})".format(message, error)
try:
import gtk
d = gtk.MessageDialog(
type=gtk.MESSAGE_ERROR,
buttons=gtk.BUTTONS_CLOSE,
message_format=msg,
)
d.set_title(type(error).__name__)
d.run()
exit(1)
except ImportError:
exit(type(error).__name__ + '\n\n' + msg)
def check_gtk():
try:
warnings.filterwarnings("error")
import pygtk
pygtk.require('2.0')
import gtk
gtk.init_check()
warnings.filterwarnings("always")
except Exception as err:
die(err, "Failed to initialize GTK. If you are running over ssh, "
"did you enable X forwarding and start ssh with -X?")
def check_gnuradio_import():
try:
from gnuradio import gr
except ImportError as err:
die(err, GR_IMPORT_ERROR_MESSAGE)
def check_blocks_path():
if 'GR_DONT_LOAD_PREFS' in os.environ and not os.environ.get('GRC_BLOCKS_PATH', ''):
die(EnvironmentError("No block definitions available"),
"Can't find block definitions. Use config.conf or GRC_BLOCKS_PATH.")
def run_main():
script_path = os.path.dirname(os.path.abspath(__file__))
source_tree_subpath = "/grc/scripts"
if not script_path.endswith(source_tree_subpath):
# run the installed version
from gnuradio.grc.main import main
else:
print("Running from source tree")
sys.path.insert(1, script_path[:-len(source_tree_subpath)])
from grc.main import main
exit(main())
if __name__ == '__main__':
check_gnuradio_import()
check_gtk()
check_blocks_path()
run_main()
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