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   1 #
   2 # Copyright 2009 Free Software Foundation, Inc.
   3 #
   4 # This file is part of GNU Radio
   5 #
   6 # GNU Radio is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3, or (at your option)
   9 # any later version.
  10 #
  11 # GNU Radio is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with GNU Radio; see the file COPYING.  If not, write to
  18 # the Free Software Foundation, Inc., 51 Franklin Street,
  19 # Boston, MA 02110-1301, USA.
  20 #
  21
  22 ##################################################
  23 # Imports
  24 ##################################################
  25 import histo_window
  26 import common
  27 from gnuradio import gr, blks2
  28 from pubsub import pubsub
  29 from constants import *
  30
  31 ##################################################
  32 # histo sink block (wrapper for old wxgui)
  33 ##################################################
  34 class histo_sink_f(gr.hier_block2):
  35         """
  36         A histogram block and a gui window.
  37         """
  38
  39         def __init__(
  40                 self,
  41                 parent,
  42                 size=histo_window.DEFAULT_WIN_SIZE,
  43                 title='',
  44                 num_bins=11,
  45                 frame_size=1000,
  46         ):
  47                 #init
  48                 gr.hier_block2.__init__(
  49                         self,
  50                         "histo_sink",
  51                         gr.io_signature(1, 1, gr.sizeof_float),
  52                         gr.io_signature(0, 0, 0),
  53                 )
  54                 #blocks
  55                 msgq = gr.msg_queue(2)
  56                 histo = gr.histo_sink_f(msgq)
  57                 histo.set_num_bins(num_bins)
  58                 histo.set_frame_size(frame_size)
  59                 #connect
  60                 self.connect(self, histo)
  61                 #controller
  62                 self.controller = pubsub()
  63                 self.controller.subscribe(NUM_BINS_KEY, histo.set_num_bins)
  64                 self.controller.publish(NUM_BINS_KEY, histo.get_num_bins)
  65                 self.controller.subscribe(FRAME_SIZE_KEY, histo.set_frame_size)
  66                 self.controller.publish(FRAME_SIZE_KEY, histo.get_frame_size)
  67                 #start input watcher
  68                 common.input_watcher(msgq, self.controller, MSG_KEY, arg1_key=MINIMUM_KEY, arg2_key=MAXIMUM_KEY)
  69                 #create window
  70                 self.win = histo_window.histo_window(
  71                         parent=parent,
  72                         controller=self.controller,
  73                         size=size,
  74                         title=title,
  75                         maximum_key=MAXIMUM_KEY,
  76                         minimum_key=MINIMUM_KEY,
  77                         num_bins_key=NUM_BINS_KEY,
  78                         frame_size_key=FRAME_SIZE_KEY,
  79                         msg_key=MSG_KEY,
  80                 )
  81                 common.register_access_methods(self, self.win)
  82
  83 # ----------------------------------------------------------------
  84 # Standalone test app
  85 # ----------------------------------------------------------------
  86
  87 import wx
  88 from gnuradio.wxgui import stdgui2
  89
  90 class test_app_block (stdgui2.std_top_block):
  91     def __init__(self, frame, panel, vbox, argv):
  92         stdgui2.std_top_block.__init__ (self, frame, panel, vbox, argv)
  93
  94         # build our flow graph
  95         input_rate = 20.48e3
  96
  97         src2 = gr.sig_source_f (input_rate, gr.GR_SIN_WAVE, 2e3, 1)
  98         #src2 = gr.sig_source_f (input_rate, gr.GR_CONST_WAVE, 5.75e3, 1)
  99         thr2 = gr.throttle(gr.sizeof_float, input_rate)
 100         sink2 = histo_sink_f (panel, title="Data", num_bins=31, frame_size=1000)
 101         vbox.Add (sink2.win, 1, wx.EXPAND)
 102
 103         self.connect(src2, thr2, sink2)
 104
 105 def main ():
 106     app = stdgui2.stdapp (test_app_block, "Histo Sink Test App")
 107     app.MainLoop ()
 108
 109 if __name__ == '__main__':
 110     main ()