1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
#
# Copyright 2008 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 common
import numpy
import wx
import pubsub
from constants import *
from gnuradio import gr #for gr.prefs
##################################################
# Constants
##################################################
NEG_INF = float('-inf')
SLIDER_STEPS = 100
AVG_ALPHA_MIN_EXP, AVG_ALPHA_MAX_EXP = -3, 0
DEFAULT_NUMBER_RATE = gr.prefs().get_long('wxgui', 'number_rate', 5)
DEFAULT_WIN_SIZE = (300, 300)
DEFAULT_GAUGE_RANGE = 1000
##################################################
# Number window control panel
##################################################
class control_panel(wx.Panel):
"""
A control panel with wx widgits to control the averaging.
"""
def __init__(self, parent):
"""
Create a new control panel.
@param parent the wx parent window
"""
self.parent = parent
wx.Panel.__init__(self, parent, -1, style=wx.SUNKEN_BORDER)
control_box = wx.BoxSizer(wx.VERTICAL)
#checkboxes for average and peak hold
control_box.AddStretchSpacer()
control_box.Add(common.LabelText(self, 'Options'), 0, wx.ALIGN_CENTER)
self.average_check_box = common.CheckBoxController(self, 'Average', parent.ext_controller, parent.average_key)
control_box.Add(self.average_check_box, 0, wx.EXPAND)
self.peak_hold_check_box = common.CheckBoxController(self, 'Peak Hold', parent, PEAK_HOLD_KEY)
control_box.Add(self.peak_hold_check_box, 0, wx.EXPAND)
control_box.AddSpacer(2)
self.avg_alpha_slider = common.LogSliderController(
self, 'Avg Alpha',
AVG_ALPHA_MIN_EXP, AVG_ALPHA_MAX_EXP, SLIDER_STEPS,
parent.ext_controller, parent.avg_alpha_key,
formatter=lambda x: ': %.4f'%x,
)
parent.ext_controller.subscribe(parent.average_key, self.avg_alpha_slider.Enable)
control_box.Add(self.avg_alpha_slider, 0, wx.EXPAND)
#run/stop
control_box.AddStretchSpacer()
self.run_button = common.ToggleButtonController(self, parent, RUNNING_KEY, 'Stop', 'Run')
control_box.Add(self.run_button, 0, wx.EXPAND)
#set sizer
self.SetSizerAndFit(control_box)
##################################################
# Numbersink window with label and gauges
##################################################
class number_window(wx.Panel, pubsub.pubsub, common.prop_setter):
def __init__(
self,
parent,
controller,
size,
title,
units,
show_gauge,
real,
minval,
maxval,
decimal_places,
average_key,
avg_alpha_key,
peak_hold,
msg_key,
):
pubsub.pubsub.__init__(self)
wx.Panel.__init__(self, parent, -1, style=wx.SUNKEN_BORDER)
#setup
self.peak_val_real = NEG_INF
self.peak_val_imag = NEG_INF
self.ext_controller = controller
self.real = real
self.units = units
self.minval = minval
self.maxval = maxval
self.decimal_places = decimal_places
self.average_key = average_key
self.avg_alpha_key = avg_alpha_key
#setup the box with display and controls
self.control_panel = control_panel(self)
main_box = wx.BoxSizer(wx.HORIZONTAL)
sizer = wx.BoxSizer(wx.VERTICAL)
main_box.Add(sizer, 1, wx.EXPAND)
main_box.Add(self.control_panel, 0, wx.EXPAND)
sizer.Add(common.LabelText(self, title), 1, wx.ALIGN_CENTER)
self.text = wx.StaticText(self, size=(size[0], -1))
sizer.Add(self.text, 1, wx.EXPAND)
self.gauge_real = wx.Gauge(self, range=DEFAULT_GAUGE_RANGE, style=wx.GA_HORIZONTAL)
self.gauge_imag = wx.Gauge(self, range=DEFAULT_GAUGE_RANGE, style=wx.GA_HORIZONTAL)
#hide/show gauges
self.show_gauges(show_gauge)
sizer.Add(self.gauge_real, 1, wx.EXPAND)
sizer.Add(self.gauge_imag, 1, wx.EXPAND)
self.SetSizerAndFit(main_box)
#initial setup
self.ext_controller[self.average_key] = self.ext_controller[self.average_key]
self.ext_controller[self.avg_alpha_key] = self.ext_controller[self.avg_alpha_key]
self._register_set_prop(self, PEAK_HOLD_KEY, peak_hold)
self._register_set_prop(self, RUNNING_KEY, True)
#register events
self.ext_controller.subscribe(msg_key, self.handle_msg)
self.Bind(common.EVT_DATA, self.update)
def show_gauges(self, show_gauge):
"""
Show or hide the gauges.
If this is real, never show the imaginary gauge.
@param show_gauge true to show
"""
if show_gauge: self.gauge_real.Show()
else: self.gauge_real.Hide()
if show_gauge and not self.real: self.gauge_imag.Show()
else: self.gauge_imag.Hide()
def handle_msg(self, msg):
"""
Post this message into a data event.
Allow wx to handle the event to avoid threading issues.
@param msg the incoming numbersink data
"""
wx.PostEvent(self, common.DataEvent(msg))
def update(self, event):
"""
Handle a message from the message queue.
Convert the string based message into a float or complex.
If more than one number was read, only take the last number.
Perform peak hold operations, set the gauges and display.
@param event event.data is the number sample as a character array
"""
if not self[RUNNING_KEY]: return
#set gauge
def set_gauge_value(gauge, value):
gauge_val = DEFAULT_GAUGE_RANGE*(value-self.minval)/(self.maxval-self.minval)
gauge_val = max(0, gauge_val) #clip
gauge_val = min(DEFAULT_GAUGE_RANGE, gauge_val) #clip
gauge.SetValue(gauge_val)
format_string = "%%.%df"%self.decimal_places
if self.real:
sample = numpy.fromstring(event.data, numpy.float32)[-1]
if self[PEAK_HOLD_KEY]: sample = self.peak_val_real = max(self.peak_val_real, sample)
label_text = "%s %s"%(format_string%sample, self.units)
set_gauge_value(self.gauge_real, sample)
else:
sample = numpy.fromstring(event.data, numpy.complex64)[-1]
if self[PEAK_HOLD_KEY]:
self.peak_val_real = max(self.peak_val_real, sample.real)
self.peak_val_imag = max(self.peak_val_imag, sample.imag)
sample = self.peak_val_real + self.peak_val_imag*1j
label_text = "%s + %sj %s"%(format_string%sample.real, format_string%sample.imag, self.units)
set_gauge_value(self.gauge_real, sample.real)
set_gauge_value(self.gauge_imag, sample.imag)
#set label text
self.text.SetLabel(label_text)
#clear peak hold
if not self[PEAK_HOLD_KEY]:
self.peak_val_real = NEG_INF
self.peak_val_imag = NEG_INF
|
