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"""
Copyright 2007 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 traceback
import sys
## A list of functions that can receive a message.
MESSENGERS_LIST = list()
def register_messenger(messenger):
"""
Append the given messenger to the list of messengers.
Args:
messenger: a method thats takes a string
"""
MESSENGERS_LIST.append(messenger)
def send(message):
"""
Give the message to each of the messengers.
Args:
message: a message string
"""
for messenger in MESSENGERS_LIST: messenger(message)
#register stdout by default
register_messenger(sys.stdout.write)
###########################################################################
# Special functions for specific program functionalities
###########################################################################
def send_init(platform):
send("""<<< Welcome to %s %s >>>\n"""%(platform.get_name(), platform.get_version()))
def send_page_switch(file_path):
send('\nShowing: "%s"\n'%file_path)
################# functions for loading flow graphs ########################################
def send_start_load(file_path):
send('\nLoading: "%s"'%file_path + '\n')
def send_error_load(error):
send('>>> Error: %s\n'%error)
traceback.print_exc()
def send_end_load():
send('>>> Done\n')
def send_fail_load(error):
send('Error: %s\n'%error)
send('>>> Failure\n')
traceback.print_exc()
################# functions for generating flow graphs ########################################
def send_start_gen(file_path):
send('\nGenerating: "%s"'%file_path + '\n')
def send_fail_gen(error):
send('Generate Error: %s\n'%error)
send('>>> Failure\n')
traceback.print_exc()
################# functions for executing flow graphs ########################################
def send_start_exec(file_path):
send('\nExecuting: "%s"'%file_path + '\n')
def send_verbose_exec(verbose):
send(verbose)
def send_end_exec():
send('\n>>> Done\n')
################# functions for saving flow graphs ########################################
def send_fail_save(file_path):
send('>>> Error: Cannot save: %s\n'%file_path)
################# functions for connections ########################################
def send_fail_connection():
send('>>> Error: Cannot create connection.\n')
################# functions for preferences ########################################
def send_fail_load_preferences(prefs_file_path):
send('>>> Error: Cannot load preferences file: "%s"\n'%prefs_file_path)
def send_fail_save_preferences(prefs_file_path):
send('>>> Error: Cannot save preferences file: "%s"\n'%prefs_file_path)
################# functions for warning ########################################
def send_warning(warning):
send('>>> Warning: %s\n'%warning)
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