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 QString const METER_UNIT = "m";
37 QString const FEET_UNIT = "ft";
38 static const int FIX_TIMEOUT = 4000;
39 double const DEFAULT_SPEED_TRESHOLD = 8.0;
40 double const MIN_SPEED_TRESHOLD = 0.8;
41 double const SPEED_IGNORE_LEVEL = 0.01;
42 double const TRESHOLD_POINT1_EPS = 40.0;
43 double const TRESHOLD_POINT1_TRESHOLD = 10.0;
44 double const TRESHOLD_POINT2_EPS = 1.8;
45 double const TRESHOLD_POINT2_TRESHOLD = MIN_SPEED_TRESHOLD;
46 double const TRESHOLD_X = (TRESHOLD_POINT1_TRESHOLD - TRESHOLD_POINT2_TRESHOLD) / (TRESHOLD_POINT1_EPS - TRESHOLD_POINT2_EPS);
47 double const TRESHOLD_Y = TRESHOLD_POINT1_TRESHOLD - (TRESHOLD_POINT1_EPS * TRESHOLD_X);
50 Odometer::Odometer(): QObject(0), trip_(0), total_(0),
51 maxSpeed_(0), totalTime_(0), tripTime_(0), fixTimer_(0),
52 mainTimer_(0), emitUpdate_(true), location_(0), signalTimer_(0)
54 total_ = Settings::instance().value(TOTAL_FIELD, 0).toDouble();
55 totalTime_ = Settings::instance().value(TOTALTIME_FIELD, 0).toULongLong();
56 maxSpeed_ = Settings::instance().value(MAXSPEED_FIELD, 0).toDouble();
57 trip_ = Settings::instance().value(TRIP_FIELD, 0).toDouble();
58 tripTime_ = Settings::instance().value(TRIPTIME_FIELD, 0).toULongLong();
59 signalTimer_ = new QTimer(this);
60 signalTimer_->setSingleShot(false);
61 signalTimer_->setInterval(1000);
62 connect(signalTimer_, SIGNAL(timeout()), this, SIGNAL(timeUpdated()));
64 timeoutTimer_ = new QTimer(this);
65 timeoutTimer_->setSingleShot(true);
66 connect(timeoutTimer_, SIGNAL(timeout()), this, SLOT(fixTimeout()));
78 Odometer& Odometer::instance()
80 static Odometer instance;
84 void Odometer::start()
86 location_ = new Location;
87 connect(location_, SIGNAL(locationChanged(Location::Fix const&)),
88 this, SLOT(update(Location::Fix const&)));
98 void Odometer::update(Location::Fix const& fix)
102 fixTimer_ = new QTime();
106 int elapsed = fixTimer_->elapsed();
108 fixTimer_->restart();
109 timeoutTimer_->start(FIX_TIMEOUT);
111 if(fix.kmSpeed > SPEED_IGNORE_LEVEL)
113 double treshold = DEFAULT_SPEED_TRESHOLD;
117 treshold = fix.eps * TRESHOLD_X + TRESHOLD_Y;
119 if(treshold < MIN_SPEED_TRESHOLD)
121 treshold = MIN_SPEED_TRESHOLD;
125 if(fix.kmSpeed > treshold && fix.kmSpeed > maxSpeed_)
127 maxSpeed_ = fix.kmSpeed;
130 if(fix.kmSpeed > treshold && elapsed > 200 && elapsed < FIX_TIMEOUT)
132 double km = fix.kmSpeed * (static_cast<double>(elapsed) / (1000 * 3600));
155 void Odometer::fixTimeout()
157 if(latestFix_.kmSpeed > SPEED_IGNORE_LEVEL)
159 latestFix_ = Location::Fix();
166 double Odometer::getTrip() const
168 return trip_ * Location::getUnitMultiplier();
171 double Odometer::getAverageSpeed() const
173 int elapsed = getTripTime();
180 return (static_cast<double>(getTrip())) / (static_cast<double>(getTripTime()) / 3600.0);
183 double Odometer::getTotal() const
185 return total_ * Location::getUnitMultiplier();
188 double Odometer::getMaxSpeed() const
190 return maxSpeed_ * Location::getUnitMultiplier();
193 qulonglong Odometer::getTotalTime() const
195 return totalTime_ + timeAddition();
198 qulonglong Odometer::getTripTime() const
200 return tripTime_ + timeAddition();
203 void Odometer::resetTrip()
217 void Odometer::resetTotal()
230 void Odometer::resetAll()
240 void Odometer::store()
242 Settings::instance().setValue(TOTAL_FIELD, total_);
243 Settings::instance().setValue(TOTALTIME_FIELD, getTotalTime());
244 Settings::instance().setValue(TRIP_FIELD, trip_);
245 Settings::instance().setValue(TRIPTIME_FIELD, getTripTime());
246 Settings::instance().setValue(MAXSPEED_FIELD, maxSpeed_);
247 Settings::instance().sync();
250 Location::Fix const& Odometer::getLatestFix() const
255 double Odometer::getSignalStrength() const
262 return location_->getSignalStrength();
265 QString const& Odometer::getUnit()
267 if(Location::getUnit() == Location::KM)
277 QString const& Odometer::getSpeedUnit()
279 if(Location::getUnit() == Location::KM)
285 return MILE_SPEEDUNIT;
289 double Odometer::getUnitMultiplier()
291 return Location::getUnitMultiplier();
294 double Odometer::getMeterMultiplier()
296 return Location::getMeterMultiplier();
299 QString Odometer::getMeterUnit()
301 if(Location::getUnit() == Location::KM)
311 void Odometer::updateUnit()
313 QString unit = Settings::instance().value("unit", "km").toString();
317 Location::setUnit(Location::KM);
319 else if(unit == "mile")
321 Location::setUnit(Location::MILE);
331 void Odometer::startTiming()
333 signalTimer_->start();
337 mainTimer_->restart();
341 mainTimer_ = new QTime();
343 signalTimer_->start();
346 void Odometer::endTiming()
348 signalTimer_->stop();
355 int elapsed = mainTimer_->elapsed() / 1000;
356 totalTime_ += elapsed;
357 tripTime_ += elapsed;
362 void Odometer::resetTiming()
373 int Odometer::timeAddition() const
377 return mainTimer_->elapsed() / 1000;