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202 lines
9.1 KiB
202 lines
9.1 KiB
#!/usr/bin/env python
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# Copyright 2012 Nick Foster
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#
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# This file is part of gr-air-modes
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#
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# gr-air-modes is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# gr-air-modes is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with gr-air-modes; see the file COPYING. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street,
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# Boston, MA 02110-1301, USA.
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#
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# This file contains data models, view delegates, and associated classes
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# for handling the GUI back end data model.
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from PyQt4 import QtCore, QtGui
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import air_modes
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import threading, math, time
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from air_modes.exceptions import *
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#fades the ICAOs out as their last report gets older,
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#and display ident if available, ICAO otherwise
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class ICAOViewDelegate(QtGui.QStyledItemDelegate):
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def paint(self, painter, option, index):
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#draw selection rectangle
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if option.state & QtGui.QStyle.State_Selected:
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painter.setBrush(QtGui.QPalette().highlight())
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painter.drawRect(option.rect)
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#if there's an ident available, use it. otherwise print the ICAO
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if index.model().data(index.model().index(index.row(), 9)) != QtCore.QVariant():
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paintstr = index.model().data(index.model().index(index.row(), 9)).toString()
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else:
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paintstr = index.model().data(index.model().index(index.row(), 0)).toString()
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last_report = index.model().data(index.model().index(index.row(), 1)).toDouble()[0]
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age = (time.time() - last_report)
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max_age = 60. #age at which it grays out
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#minimum alpha is 0x40 (oldest), max is 0xFF (newest)
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age = min(age, max_age)
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alpha = int(0xFF - (0xBF / max_age) * age)
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painter.setPen(QtGui.QColor(0, 0, 0, alpha))
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painter.drawText(option.rect.left()+3, option.rect.top(), option.rect.width(), option.rect.height(), option.displayAlignment, paintstr)
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#the data model used to display dashboard data.
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class dashboard_data_model(QtCore.QAbstractTableModel):
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def __init__(self, parent):
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QtCore.QAbstractTableModel.__init__(self, parent)
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self._data = []
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self.lock = threading.Lock()
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self._colnames = ["icao", "seen", "rssi", "latitude", "longitude", "altitude", "speed", "heading", "vertical", "ident", "type", "range", "bearing"]
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#custom precision limits for display
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self._precisions = [None, None, None, 6, 6, 0, 0, 0, 0, None, None, 2, 0]
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for field in self._colnames:
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self.setHeaderData(self._colnames.index(field), QtCore.Qt.Horizontal, field)
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def rowCount(self, parent=QtCore.QVariant()):
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return len(self._data)
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def columnCount(self, parent=QtCore.QVariant()):
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return len(self._colnames)
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def data(self, index, role=QtCore.Qt.DisplayRole):
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if not index.isValid():
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return QtCore.QVariant()
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if index.row() >= self.rowCount():
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return QtCore.QVariant()
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if index.column() >= self.columnCount():
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return QtCore.QVariant()
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if (role != QtCore.Qt.DisplayRole) and (role != QtCore.Qt.EditRole):
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return QtCore.QVariant()
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if self._data[index.row()][index.column()] is None:
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return QtCore.QVariant()
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else:
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#if there's a dedicated precision for that column, print it out with the specified precision.
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#this only works well if you DON'T have other views/widgets that depend on numeric data coming out.
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#i don't like this, but it works for now. unfortunately it seems like Qt doesn't give you a
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#good alternative.
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if self._precisions[index.column()] is not None:
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return QtCore.QVariant("%.*f" % (self._precisions[index.column()], self._data[index.row()][index.column()]))
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else:
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if self._colnames[index.column()] == "icao":
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return QtCore.QVariant("%06x" % self._data[index.row()][index.column()]) #return as hex string
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else:
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return QtCore.QVariant(self._data[index.row()][index.column()])
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def setData(self, index, value, role=QtCore.Qt.EditRole):
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self.lock.acquire()
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if not index.isValid():
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return False
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if index.row() >= self.rowCount():
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return False
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if index.column >= self.columnCount():
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return False
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if role != QtCore.Qt.EditRole:
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return False
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self._data[index.row()][index.column()] = value
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self.lock.release()
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#addRecord implements an upsert on self._data; that is,
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#it updates the row if the ICAO exists, or else it creates a new row.
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def addRecord(self, record):
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self.lock.acquire()
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icaos = [x[0] for x in self._data]
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if record["icao"] in icaos:
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row = icaos.index(record["icao"])
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for column in record:
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self._data[row][self._colnames.index(column)] = record[column]
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#create index to existing row and tell the model everything's changed in this row
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#or inside the for loop, use dataChanged on each changed field (might be better)
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self.dataChanged.emit(self.createIndex(row, 0), self.createIndex(row, len(self._colnames)-1))
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#only create records for ICAOs with ADS-B reports
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elif ("latitude" or "speed" or "ident") in record:
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#find new inserted row number
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icaos.append(record["icao"])
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newrowoffset = sorted(icaos).index(record["icao"])
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self.beginInsertRows(QtCore.QModelIndex(), newrowoffset, newrowoffset)
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newrecord = [None for x in xrange(len(self._colnames))]
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for col in xrange(0, len(self._colnames)):
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if self._colnames[col] in record:
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newrecord[col] = record[self._colnames[col]]
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self._data.append(newrecord)
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self._data = sorted(self._data, key = lambda x: x[0]) #sort by icao
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self.endInsertRows()
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self.lock.release()
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self.prune()
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#weeds out ICAOs older than 1 minute
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def prune(self):
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self.lock.acquire()
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for (index,row) in enumerate(self._data):
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if time.time() - row[1] >= 60:
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self.beginRemoveRows(QtCore.QModelIndex(), index, index)
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self._data.pop(index)
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self.endRemoveRows()
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self.lock.release()
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class dashboard_output:
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def __init__(self, cprdec, model, pub):
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self.model = model
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self._cpr = cprdec
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pub.subscribe("modes_dl", self.output)
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def output(self, msg):
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try:
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msgtype = msg.data["df"]
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now = time.time()
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newrow = {"rssi": msg.rssi, "seen": now}
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if msgtype in [0, 4, 20]:
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newrow["altitude"] = air_modes.altitude.decode_alt(msg.data["ac"], True)
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newrow["icao"] = msg.ecc
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self.model.addRecord(newrow)
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elif msgtype == 17:
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icao = msg.data["aa"]
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newrow["icao"] = icao
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subtype = msg.data["ftc"]
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if subtype == 4:
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(ident, actype) = air_modes.parseBDS08(msg.data)
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newrow["ident"] = ident
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newrow["type"] = actype
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elif 5 <= subtype <= 8:
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(ground_track, decoded_lat, decoded_lon, rnge, bearing) = air_modes.parseBDS06(msg.data, self._cpr)
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newrow["heading"] = ground_track
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newrow["latitude"] = decoded_lat
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newrow["longitude"] = decoded_lon
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newrow["altitude"] = 0
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if rnge is not None:
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newrow["range"] = rnge
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newrow["bearing"] = bearing
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elif 9 <= subtype <= 18:
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(altitude, decoded_lat, decoded_lon, rnge, bearing) = air_modes.parseBDS05(msg.data, self._cpr)
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newrow["altitude"] = altitude
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newrow["latitude"] = decoded_lat
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newrow["longitude"] = decoded_lon
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if rnge is not None:
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newrow["range"] = rnge
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newrow["bearing"] = bearing
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elif subtype == 19:
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subsubtype = msg.data["sub"]
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velocity = None
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heading = None
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vert_spd = None
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if subsubtype == 0:
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(velocity, heading, vert_spd) = air_modes.parseBDS09_0(msg.data)
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elif 1 <= subsubtype <= 2:
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(velocity, heading, vert_spd) = air_modes.parseBDS09_1(msg.data)
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newrow["speed"] = velocity
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newrow["heading"] = heading
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newrow["vertical"] = vert_spd
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self.model.addRecord(newrow)
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except ADSBError:
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return
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