Merging r11186:11273 from grc branch.

Fixes, features, and reorganization for grc.
Minor fixes and features for wxgui forms.



git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@11274 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 104 insertions, 0 deletions

diff --git a/grc/gui/Messages.py b/grc/gui/Messages.py
new file mode 100644
index 000000000..80057e0ba
--- /dev/null
+++ b/grc/gui/Messages.py
@@ -0,0 +1,104 @@
+"""
+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.
+	@param messenger a method thats takes a string
+	"""
+	MESSENGERS_LIST.append(messenger)
+
+def send(message):
+	"""
+	Give the message to each of the messengers.
+	@param 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('>>> Failue\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('>>> Failue\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)