git.maemo.org Git - speedfreak/blob - Client/accrealtimedialog.cpp

   1 /*
   2  * Acceleration info in real time dialog
   3  *
   4  * @author      Jukka Kurttila <jukka.kurttila@fudeco.com>
   5  * @author      Toni Jussila    <toni.jussila@fudeco.com>
   6  * @copyright   (c) 2010 Speed Freak team
   7  * @license     http://opensource.org/licenses/gpl-license.php GNU Public License
   8  */
   9
  10 #include "accrealtimedialog.h"
  11 #include "ui_accrealtimedialog.h"
  12 #include <math.h>
  13
  14 AccRealTimeDialog::AccRealTimeDialog(QWidget *parent) :
  15     QDialog(parent),
  16     ui(new Ui::AccRealTimeDialog)
  17 {
  18     ui->setupUi(this);
  19
  20     accelerometer = new Accelerometer();
  21     movingAverageZ = new MovingAverage(10);
  22     calculate = new Calculate();
  23     accelerationStartThreshold = 0.1;
  24
  25     accelerometerTimer = new QTimer(this);
  26     connect(accelerometerTimer, SIGNAL(timeout()), this, SLOT(readAccelerometerData()));
  27     isNewRun = true;
  28     updateScreenCounter = 0;
  29     resetAccelerometerMeasurements();
  30
  31     resultDialog = NULL;
  32 }
  33
  34 AccRealTimeDialog::~AccRealTimeDialog()
  35 {
  36     delete ui;
  37     delete accelerometer;
  38     delete accelerometerTimer;
  39     delete calculate;
  40     delete movingAverageZ;
  41     if(resultDialog)
  42         delete resultDialog;
  43 }
  44
  45 void AccRealTimeDialog::changeEvent(QEvent *e)
  46 {
  47     QDialog::changeEvent(e);
  48     switch (e->type()) {
  49     case QEvent::LanguageChange:
  50         ui->retranslateUi(this);
  51         break;
  52     default:
  53         break;
  54     }
  55 }
  56 /**
  57   *This function is called to read (and process) data from the accelerometer
  58   */
  59 void AccRealTimeDialog::readAccelerometerData()
  60 {
  61     QString s;
  62     double changeInAcceleration = 0;
  63     qreal x, y, z;
  64
  65     accelerometer->getAcceleration(x, y, z);
  66
  67     //  keep the following line as close to the SetKinematicsProperties method as possible
  68     currentTime = elapsedTime.elapsed();
  69
  70     //accelerometer->smoothData(x, y, z);
  71
  72     //Calculate average
  73     movingAverageZ->Enqueue(z);
  74     z = movingAverageZ->Average();
  75
  76     // Apply calibration
  77     x -= accelerometer->getCalibrationX();
  78     y -= accelerometer->getCalibrationY();
  79     z -= accelerometer->getCalibrationZ();
  80
  81 //    QString str = QString("acc x: " + QString::number(x) + "\n" +
  82 //                          "acc y: " + QString::number(y) + "\n" +
  83 //                          "acc z: " + QString::number(z) + "\n");
  84
  85     currentAcceleration = z;//sqrt(x*x + y*y + z*z);
  86     changeInAcceleration = currentAcceleration;
  87
  88     if (((fabs(changeInAcceleration) <= accelerationStartThreshold)
  89                 && !vehicleStartedMoving))
  90     {
  91         return;
  92     }
  93     else if(!vehicleStartedMoving)
  94     {
  95         vehicleStartedMoving = true;
  96         elapsedTime.start();
  97         previousTime = 0;
  98         currentTime = 0;
  99     }
 100
 101     calculate->calculateParameters(changeInAcceleration, (currentTime - previousTime)/1000);
 102     previousTime = currentTime;
 103
 104     //s.sprintf("%.2f", changeInAcceleration);
 105     //currentAccelerationString = s;
 106
 107     speed = 0;
 108     speed = calculate->getCurrentSpeed();
 109     //Convert to km/h
 110     speed = speed*3.6;
 111     s.sprintf("%.1f", speed);
 112     currentSpeed = s;
 113
 114     //s.sprintf("%.2f", calculate->getDistanceTraveled());
 115     //distanceTraveled = s;
 116
 117     // TODO
 118     //distanceTraveled;
 119     //horsepower;
 120
 121     time = calculate->getTotalTime();
 122
 123     s.sprintf("%.2f", time);
 124     totalTime = s;
 125
 126     //str.append("ca: " + currentAccelerationString + " G\n" );
 127     //str.append("cspeed: " + currentSpeed + " km/h \n" );
 128     //str.append("dist: " + distanceTraveled + " m \n" );
 129     //str.append("time: " + totalTime + " s \n" );
 130
 131     if( updateScreenCounter == 5 )
 132     {
 133         ui->realSpeedLabel->setText( currentSpeed );
 134         ui->timeLabel->setText( totalTime );
 135         updateScreenCounter = 0;
 136     }
 137     updateScreenCounter++;
 138
 139     //Open result dialog if target speed reached
 140     if( (stopMeasureSpeed > 0) && (speed > stopMeasureSpeed) )
 141     {
 142         this->accelerometerTimer->stop();
 143         if(!resultDialog)
 144         {
 145             resultDialog = new ResultDialog(this);
 146             connect(resultDialog, SIGNAL(rejected()), this, SLOT(killResultDialog()));
 147             connect(resultDialog, SIGNAL(sendresult(double)), this, SLOT(sendResult(double)));
 148         }
 149         if(resultDialog)
 150         {
 151             resultDialog->setEnd(stopMeasureSpeed);
 152             //Put all times from all speeds
 153             QMap<int,double> tempMap = calculate->getValuesMap();
 154
 155             for( int i = 1 ; i <= tempMap.count() ; i++ )
 156             {
 157                 resultDialog->setValue(i*10,tempMap[i*10]);
 158             }
 159             resultDialog->show();
 160             this->hide();
 161         }
 162     }
 163 }
 164
 165 /**
 166   * Resets Accelerometer measurement variables
 167   */
 168 void AccRealTimeDialog::resetAccelerometerMeasurements()
 169 {
 170     speed = 0;
 171     currentAcceleration = 0;
 172     currentSpeed = "";
 173     currentTime = 0;
 174     isNewRun = true;
 175     previousTime = 0;
 176     elapsedTime.start();
 177     totalTime = "";
 178     calculate->reset();
 179     vehicleStartedMoving = false;
 180     stopMeasureSpeed = 0;
 181 }
 182
 183 void AccRealTimeDialog::Calibrate()
 184 {
 185     accelerometer->calibrate();
 186 }
 187
 188 void AccRealTimeDialog::on_buttonAbort_clicked()
 189 {
 190     accelerometerTimer->stop();
 191     resetAccelerometerMeasurements();
 192     this->close();
 193 }
 194
 195 void AccRealTimeDialog::startAccelerationMeasure()
 196 {
 197     double temp = stopMeasureSpeed;
 198     resetAccelerometerMeasurements();
 199     stopMeasureSpeed = temp;
 200     accelerometerTimer->start(40);
 201 }
 202
 203 void AccRealTimeDialog::SetStopMeasureSpeed(double speed)
 204 {
 205     stopMeasureSpeed = speed;
 206 }
 207
 208 /**
 209   *This slot function emit accelerationstart sendresult.
 210   *
 211   **/
 212 void AccRealTimeDialog::sendResult(double result)
 213 {
 214     emit sendresult(result);
 215 }
 216
 217 /**
 218   *This slot function kills resultDialog.
 219   *
 220   **/
 221 void AccRealTimeDialog::killResultDialog()
 222 {
 223     if(resultDialog)
 224     {
 225         delete resultDialog;
 226         resultDialog = NULL;
 227     }
 228 }