/usr/lib/python2.7/dist-packages/air_modes/gui_model.py is in gr-air-modes 0.0.0.e47992d-5ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 | #!/usr/bin/env python
# Copyright 2012 Nick Foster
#
# This file is part of gr-air-modes
#
# gr-air-modes 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.
#
# gr-air-modes 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 gr-air-modes; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
# This file contains data models, view delegates, and associated classes
# for handling the GUI back end data model.
from PyQt4 import QtCore, QtGui
import air_modes
import threading, math, time
from air_modes.exceptions import *
#fades the ICAOs out as their last report gets older,
#and display ident if available, ICAO otherwise
class ICAOViewDelegate(QtGui.QStyledItemDelegate):
def paint(self, painter, option, index):
#draw selection rectangle
if option.state & QtGui.QStyle.State_Selected:
painter.setBrush(QtGui.QPalette().highlight())
painter.drawRect(option.rect)
#if there's an ident available, use it. otherwise print the ICAO
if index.model().data(index.model().index(index.row(), 9)) != QtCore.QVariant():
paintstr = index.model().data(index.model().index(index.row(), 9)).toString()
else:
paintstr = index.model().data(index.model().index(index.row(), 0)).toString()
last_report = index.model().data(index.model().index(index.row(), 1)).toDouble()[0]
age = (time.time() - last_report)
max_age = 60. #age at which it grays out
#minimum alpha is 0x40 (oldest), max is 0xFF (newest)
age = min(age, max_age)
alpha = int(0xFF - (0xBF / max_age) * age)
painter.setPen(QtGui.QColor(0, 0, 0, alpha))
painter.drawText(option.rect.left()+3, option.rect.top(), option.rect.width(), option.rect.height(), option.displayAlignment, paintstr)
#the data model used to display dashboard data.
class dashboard_data_model(QtCore.QAbstractTableModel):
def __init__(self, parent):
QtCore.QAbstractTableModel.__init__(self, parent)
self._data = []
self.lock = threading.Lock()
self._colnames = ["icao", "seen", "rssi", "latitude", "longitude", "altitude", "speed", "heading", "vertical", "ident", "type", "range", "bearing"]
#custom precision limits for display
self._precisions = [None, None, None, 6, 6, 0, 0, 0, 0, None, None, 2, 0]
for field in self._colnames:
self.setHeaderData(self._colnames.index(field), QtCore.Qt.Horizontal, field)
def rowCount(self, parent=QtCore.QVariant()):
return len(self._data)
def columnCount(self, parent=QtCore.QVariant()):
return len(self._colnames)
def data(self, index, role=QtCore.Qt.DisplayRole):
if not index.isValid():
return QtCore.QVariant()
if index.row() >= self.rowCount():
return QtCore.QVariant()
if index.column() >= self.columnCount():
return QtCore.QVariant()
if (role != QtCore.Qt.DisplayRole) and (role != QtCore.Qt.EditRole):
return QtCore.QVariant()
if self._data[index.row()][index.column()] is None:
return QtCore.QVariant()
else:
#if there's a dedicated precision for that column, print it out with the specified precision.
#this only works well if you DON'T have other views/widgets that depend on numeric data coming out.
#i don't like this, but it works for now. unfortunately it seems like Qt doesn't give you a
#good alternative.
if self._precisions[index.column()] is not None:
return QtCore.QVariant("%.*f" % (self._precisions[index.column()], self._data[index.row()][index.column()]))
else:
if self._colnames[index.column()] == "icao":
return QtCore.QVariant("%06x" % self._data[index.row()][index.column()]) #return as hex string
else:
return QtCore.QVariant(self._data[index.row()][index.column()])
def setData(self, index, value, role=QtCore.Qt.EditRole):
self.lock.acquire()
if not index.isValid():
return False
if index.row() >= self.rowCount():
return False
if index.column >= self.columnCount():
return False
if role != QtCore.Qt.EditRole:
return False
self._data[index.row()][index.column()] = value
self.lock.release()
#addRecord implements an upsert on self._data; that is,
#it updates the row if the ICAO exists, or else it creates a new row.
def addRecord(self, record):
self.lock.acquire()
icaos = [x[0] for x in self._data]
if record["icao"] in icaos:
row = icaos.index(record["icao"])
for column in record:
self._data[row][self._colnames.index(column)] = record[column]
#create index to existing row and tell the model everything's changed in this row
#or inside the for loop, use dataChanged on each changed field (might be better)
self.dataChanged.emit(self.createIndex(row, 0), self.createIndex(row, len(self._colnames)-1))
#only create records for ICAOs with ADS-B reports
elif ("latitude" or "speed" or "ident") in record:
#find new inserted row number
icaos.append(record["icao"])
newrowoffset = sorted(icaos).index(record["icao"])
self.beginInsertRows(QtCore.QModelIndex(), newrowoffset, newrowoffset)
newrecord = [None for x in xrange(len(self._colnames))]
for col in xrange(0, len(self._colnames)):
if self._colnames[col] in record:
newrecord[col] = record[self._colnames[col]]
self._data.append(newrecord)
self._data = sorted(self._data, key = lambda x: x[0]) #sort by icao
self.endInsertRows()
self.lock.release()
self.prune()
#weeds out ICAOs older than 1 minute
def prune(self):
self.lock.acquire()
for (index,row) in enumerate(self._data):
if time.time() - row[1] >= 60:
self.beginRemoveRows(QtCore.QModelIndex(), index, index)
self._data.pop(index)
self.endRemoveRows()
self.lock.release()
class dashboard_output:
def __init__(self, cprdec, model, pub):
self.model = model
self._cpr = cprdec
pub.subscribe("modes_dl", self.output)
def output(self, msg):
try:
msgtype = msg.data["df"]
now = time.time()
newrow = {"rssi": msg.rssi, "seen": now}
if msgtype in [0, 4, 20]:
newrow["altitude"] = air_modes.altitude.decode_alt(msg.data["ac"], True)
newrow["icao"] = msg.ecc
self.model.addRecord(newrow)
elif msgtype == 17:
icao = msg.data["aa"]
newrow["icao"] = icao
subtype = msg.data["ftc"]
if subtype == 4:
(ident, actype) = air_modes.parseBDS08(msg.data)
newrow["ident"] = ident
newrow["type"] = actype
elif 5 <= subtype <= 8:
(ground_track, decoded_lat, decoded_lon, rnge, bearing) = air_modes.parseBDS06(msg.data, self._cpr)
newrow["heading"] = ground_track
newrow["latitude"] = decoded_lat
newrow["longitude"] = decoded_lon
newrow["altitude"] = 0
if rnge is not None:
newrow["range"] = rnge
newrow["bearing"] = bearing
elif 9 <= subtype <= 18:
(altitude, decoded_lat, decoded_lon, rnge, bearing) = air_modes.parseBDS05(msg.data, self._cpr)
newrow["altitude"] = altitude
newrow["latitude"] = decoded_lat
newrow["longitude"] = decoded_lon
if rnge is not None:
newrow["range"] = rnge
newrow["bearing"] = bearing
elif subtype == 19:
subsubtype = msg.data["sub"]
velocity = None
heading = None
vert_spd = None
if subsubtype == 0:
(velocity, heading, vert_spd) = air_modes.parseBDS09_0(msg.data)
elif 1 <= subsubtype <= 2:
(velocity, heading, vert_spd) = air_modes.parseBDS09_1(msg.data)
newrow["speed"] = velocity
newrow["heading"] = heading
newrow["vertical"] = vert_spd
self.model.addRecord(newrow)
except ADSBError:
return
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