2 * This file is part of jSpeed.
4 * jSpeed is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * jSpeed is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with jSpeed. If not, see <http://www.gnu.org/licenses/>.
19 #include <QtCore/QTime>
20 #include <QtCore/QDebug>
21 #include <QtCore/QTimer>
27 QString const TOTAL_FIELD = "odometer_total";
28 QString const TOTALTIME_FIELD = "odometer_totaltime";
29 QString const TRIP_FIELD = "odometer_trip";
30 QString const TRIPTIME_FIELD = "odometer_triptime";
31 QString const MAXSPEED_FIELD = "odometer_maxspeed";
32 QString const KM_UNIT = "km";
33 QString const MILE_UNIT = "mi";
34 QString const KM_SPEEDUNIT = "km/h";
35 QString const MILE_SPEEDUNIT = "mph";
36 static const int FIX_TIMEOUT = 4000;
37 double const DEFAULT_SPEED_TRESHOLD = 8.0;
38 double const MIN_SPEED_TRESHOLD = 0.8;
39 double const SPEED_IGNORE_LEVEL = 0.01;
40 double const TRESHOLD_POINT1_EPS = 40.0;
41 double const TRESHOLD_POINT1_TRESHOLD = 10.0;
42 double const TRESHOLD_POINT2_EPS = 1.8;
43 double const TRESHOLD_POINT2_TRESHOLD = MIN_SPEED_TRESHOLD;
44 double const TRESHOLD_X = (TRESHOLD_POINT1_TRESHOLD - TRESHOLD_POINT2_TRESHOLD) / (TRESHOLD_POINT1_EPS - TRESHOLD_POINT2_EPS);
45 double const TRESHOLD_Y = TRESHOLD_POINT1_TRESHOLD - (TRESHOLD_POINT1_EPS * TRESHOLD_X);
48 Odometer::Odometer(): QObject(0), trip_(0), total_(0),
49 maxSpeed_(0), totalTime_(0), tripTime_(0), fixTimer_(0),
50 mainTimer_(0), emitUpdate_(true), location_(0), signalTimer_(0)
52 total_ = Settings::instance().value(TOTAL_FIELD, 0).toDouble();
53 totalTime_ = Settings::instance().value(TOTALTIME_FIELD, 0).toULongLong();
54 maxSpeed_ = Settings::instance().value(MAXSPEED_FIELD, 0).toDouble();
55 trip_ = Settings::instance().value(TRIP_FIELD, 0).toDouble();
56 tripTime_ = Settings::instance().value(TRIPTIME_FIELD, 0).toULongLong();
57 signalTimer_ = new QTimer(this);
58 signalTimer_->setSingleShot(false);
59 signalTimer_->setInterval(1000);
60 connect(signalTimer_, SIGNAL(timeout()), this, SIGNAL(timeUpdated()));
62 timeoutTimer_ = new QTimer(this);
63 timeoutTimer_->setSingleShot(true);
64 connect(timeoutTimer_, SIGNAL(timeout()), this, SLOT(fixTimeout()));
76 Odometer& Odometer::instance()
78 static Odometer instance;
82 void Odometer::start()
84 location_ = new Location;
85 connect(location_, SIGNAL(locationChanged(Location::Fix const&)),
86 this, SLOT(update(Location::Fix const&)));
96 void Odometer::update(Location::Fix const& fix)
100 fixTimer_ = new QTime();
104 int elapsed = fixTimer_->elapsed();
106 fixTimer_->restart();
107 timeoutTimer_->start(FIX_TIMEOUT);
109 if(fix.kmSpeed > SPEED_IGNORE_LEVEL)
111 double treshold = DEFAULT_SPEED_TRESHOLD;
115 treshold = fix.eps * TRESHOLD_X + TRESHOLD_Y;
117 if(treshold < MIN_SPEED_TRESHOLD)
119 treshold = MIN_SPEED_TRESHOLD;
123 if(fix.kmSpeed > treshold && fix.kmSpeed > maxSpeed_)
125 maxSpeed_ = fix.kmSpeed;
128 if(fix.kmSpeed > treshold && elapsed > 200 && elapsed < FIX_TIMEOUT)
130 double km = fix.kmSpeed * (static_cast<double>(elapsed) / (1000 * 3600));
153 void Odometer::fixTimeout()
155 if(latestFix_.kmSpeed > SPEED_IGNORE_LEVEL)
157 latestFix_ = Location::Fix();
164 double Odometer::getTrip() const
166 return trip_ * Location::getUnitMultiplier();
169 double Odometer::getAverageSpeed() const
171 int elapsed = getTripTime();
178 return (static_cast<double>(getTrip())) / (static_cast<double>(getTripTime()) / 3600.0);
181 double Odometer::getTotal() const
183 return total_ * Location::getUnitMultiplier();
186 double Odometer::getMaxSpeed() const
188 return maxSpeed_ * Location::getUnitMultiplier();
191 qulonglong Odometer::getTotalTime() const
193 return totalTime_ + timeAddition();
196 qulonglong Odometer::getTripTime() const
198 return tripTime_ + timeAddition();
201 void Odometer::resetTrip()
215 void Odometer::resetTotal()
228 void Odometer::resetAll()
238 void Odometer::store()
240 Settings::instance().setValue(TOTAL_FIELD, total_);
241 Settings::instance().setValue(TOTALTIME_FIELD, getTotalTime());
242 Settings::instance().setValue(TRIP_FIELD, trip_);
243 Settings::instance().setValue(TRIPTIME_FIELD, getTripTime());
244 Settings::instance().setValue(MAXSPEED_FIELD, maxSpeed_);
245 Settings::instance().sync();
248 Location::Fix const& Odometer::getLatestFix() const
253 double Odometer::getSignalStrength() const
260 return location_->getSignalStrength();
263 QString const& Odometer::getUnit()
265 if(Location::getUnit() == Location::KM)
275 QString const& Odometer::getSpeedUnit()
277 if(Location::getUnit() == Location::KM)
283 return MILE_SPEEDUNIT;
287 double Odometer::getUnitMultiplier()
289 return Location::getUnitMultiplier();
292 void Odometer::updateUnit()
294 QString unit = Settings::instance().value("unit", "km").toString();
298 Location::setUnit(Location::KM);
300 else if(unit == "mile")
302 Location::setUnit(Location::MILE);
312 void Odometer::startTiming()
314 signalTimer_->start();
318 mainTimer_->restart();
322 mainTimer_ = new QTime();
324 signalTimer_->start();
327 void Odometer::endTiming()
329 signalTimer_->stop();
336 int elapsed = mainTimer_->elapsed() / 1000;
337 totalTime_ += elapsed;
338 tripTime_ += elapsed;
343 void Odometer::resetTiming()
354 int Odometer::timeAddition() const
358 return mainTimer_->elapsed() / 1000;