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#
# Copyright 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.
#
##################################################
# Imports
##################################################
import histo_window
import common
from gnuradio import gr, blks2
from pubsub import pubsub
from constants import *
##################################################
# histo sink block (wrapper for old wxgui)
##################################################
class histo_sink_f(gr.hier_block2, common.wxgui_hb):
"""
A histogram block and a gui window.
"""
def __init__(
self,
parent,
size=histo_window.DEFAULT_WIN_SIZE,
title='',
num_bins=11,
frame_size=1000,
):
#init
gr.hier_block2.__init__(
self,
"histo_sink",
gr.io_signature(1, 1, gr.sizeof_float),
gr.io_signature(0, 0, 0),
)
#blocks
msgq = gr.msg_queue(2)
histo = gr.histo_sink_f(msgq)
histo.set_num_bins(num_bins)
histo.set_frame_size(frame_size)
#controller
self.controller = pubsub()
self.controller.subscribe(NUM_BINS_KEY, histo.set_num_bins)
self.controller.publish(NUM_BINS_KEY, histo.get_num_bins)
self.controller.subscribe(FRAME_SIZE_KEY, histo.set_frame_size)
self.controller.publish(FRAME_SIZE_KEY, histo.get_frame_size)
#start input watcher
common.input_watcher(msgq, self.controller, MSG_KEY, arg1_key=MINIMUM_KEY, arg2_key=MAXIMUM_KEY)
#create window
self.win = histo_window.histo_window(
parent=parent,
controller=self.controller,
size=size,
title=title,
maximum_key=MAXIMUM_KEY,
minimum_key=MINIMUM_KEY,
num_bins_key=NUM_BINS_KEY,
frame_size_key=FRAME_SIZE_KEY,
msg_key=MSG_KEY,
)
common.register_access_methods(self, self.win)
#connect
self.wxgui_connect(self, histo)
# ----------------------------------------------------------------
# Standalone test app
# ----------------------------------------------------------------
import wx
from gnuradio.wxgui import stdgui2
class test_app_block (stdgui2.std_top_block):
def __init__(self, frame, panel, vbox, argv):
stdgui2.std_top_block.__init__ (self, frame, panel, vbox, argv)
# build our flow graph
input_rate = 20.48e3
src2 = gr.sig_source_f (input_rate, gr.GR_SIN_WAVE, 2e3, 1)
#src2 = gr.sig_source_f (input_rate, gr.GR_CONST_WAVE, 5.75e3, 1)
thr2 = gr.throttle(gr.sizeof_float, input_rate)
sink2 = histo_sink_f (panel, title="Data", num_bins=31, frame_size=1000)
vbox.Add (sink2.win, 1, wx.EXPAND)
self.connect(src2, thr2, sink2)
def main ():
app = stdgui2.stdapp (test_app_block, "Histo Sink Test App")
app.MainLoop ()
if __name__ == '__main__':
main ()
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