add support for start date offset

mainsettingsdialog.cpp

@@ -80,6 +80,7 @@ MainSettingsDialog::MainSettingsDialog(QWidget *parent) :
     ui->cbValidate->setChecked(settings.value("Main/ValidateComm", true).toBool());
     ui->spinPlaybackSpeed->setValue(settings.value("Playback/DefSpeed", 5).toInt());
     ui->lineClockFormat->setText(settings.value("Main/TimeFormat", "MMM-dd HH:mm:ss.zzz").toString());
+    ui->lineStartDate->setText(settings.value("Main/StartDate", "2025-01-01T00:00:00.000000").toString());
     ui->lineRemoteHost->setText(settings.value("Remote/Host", "api.savvycan.com").toString());
     ui->lineRemotePort->setText(settings.value("Remote/Port", "8883").toString()); //default port for SSL enabled MQTT
     ui->lineRemoteUser->setText(settings.value("Remote/User", "Anonymous").toString());
@@ -127,6 +128,7 @@ MainSettingsDialog::MainSettingsDialog(QWidget *parent) :
         }
     }
 
+    ui->cbUseStartDate->setChecked(settings.value("Main/UseStartDate", false).toBool());
     ui->cbCSVAbsTime->setChecked(settings.value("Main/CSVAbsTime", false).toBool());
     ui->comboSendingBus->setCurrentIndex(settings.value("Playback/SendingBus", 4).toInt());
     ui->cbUseFiltered->setChecked(settings.value("Main/UseFiltered", false).toBool());
@@ -172,10 +174,12 @@ MainSettingsDialog::MainSettingsDialog(QWidget *parent) :
     connect(ui->rbMicros, SIGNAL(toggled(bool)), this, SLOT(updateSettings()));
     connect(ui->rbSysClock, SIGNAL(toggled(bool)), this, SLOT(updateSettings()));
     connect(ui->rbMillis, SIGNAL(toggled(bool)), this, SLOT(updateSettings()));
+    connect(ui->cbUseStartDate, SIGNAL(toggled(bool)), this, SLOT(updateSettings()));
     connect(ui->cbCSVAbsTime, SIGNAL(toggled(bool)), this, SLOT(updateSettings()));
     connect(ui->comboSendingBus, SIGNAL(currentIndexChanged(int)), this, SLOT(updateSettings()));
     connect(ui->cbUseFiltered, SIGNAL(toggled(bool)), this, SLOT(updateSettings()));
     connect(ui->lineClockFormat, SIGNAL(editingFinished()), this, SLOT(updateSettings()));
+    connect(ui->lineStartDate, SIGNAL(editingFinished()), this, SLOT(updateSettings()));
     connect(ui->cbUseOpenGL, SIGNAL(toggled(bool)), this, SLOT(updateSettings()));
     connect(ui->lineRemoteHost, SIGNAL(editingFinished()), this, SLOT(updateSettings()));
     connect(ui->lineRemotePort, SIGNAL(editingFinished()), this, SLOT(updateSettings()));
@@ -244,11 +248,13 @@ void MainSettingsDialog::updateSettings()
     settings.setValue("Main/TimeSeconds", ui->rbSeconds->isChecked());
     settings.setValue("Main/TimeMillis", ui->rbMillis->isChecked());
     settings.setValue("Main/TimeClock", ui->rbSysClock->isChecked());
+    settings.setValue("Main/UseStartDate", ui->cbUseStartDate->isChecked());
     settings.setValue("Main/CSVAbsTime", ui->cbCSVAbsTime->isChecked());
     settings.setValue("Playback/SendingBus", ui->comboSendingBus->currentIndex());
     settings.setValue("Main/UseFiltered", ui->cbUseFiltered->isChecked());
     settings.setValue("Main/UseOpenGL", ui->cbUseOpenGL->isChecked());
     settings.setValue("Main/TimeFormat", ui->lineClockFormat->text());
+    settings.setValue("Main/StartDate", ui->lineStartDate->text());
     settings.setValue("Main/FontSize", ui->spinFontSize->value());
     settings.setValue("Remote/Host", ui->lineRemoteHost->text());
     settings.setValue("Remote/Port", ui->lineRemotePort->text());

mainwindow.cpp

@@ -430,11 +430,19 @@ void MainWindow::readUpdateableSettings()
     tempBool = settings.value("Main/TimeSeconds", false).toBool();
     if (tempBool) ts = TS_SECONDS;
     tempBool = settings.value("Main/TimeClock", false).toBool();
-    if (tempBool) ts = TS_CLOCK;
+    if (tempBool) {
+        if (settings.value("Main/UseStartDate", false).toBool()) {
+            ts = TS_START_DATE;
+        } else {
+            ts = TS_CLOCK;
+        }
+    }
     tempBool = settings.value("Main/TimeMillis", false).toBool();
     if (tempBool) ts = TS_MILLIS;
     model->setTimeStyle(ts);
 
+    Utility::startDate = QDateTime::fromString(settings.value("Main/StartDate", "2025-01-01T00:00:00.000000").toString(), Qt::ISODateWithMs);
+
     useFiltered = settings.value("Main/UseFiltered", false).toBool();
     model->setTimeFormat(settings.value("Main/TimeFormat", "MMM-dd HH:mm:ss.zzz").toString());
     ignoreDBCColors = settings.value("Main/IgnoreDBCColors", false).toBool();

re/graphingwindow.cpp

@@ -40,7 +40,7 @@ GraphingWindow::GraphingWindow(const QVector<CANFrame> *frames, QWidget *parent)
     if (Utility::timeStyle == TS_SECONDS) ui->graphingView->xAxis->setNumberPrecision(6);
         else ui->graphingView->xAxis->setNumberPrecision(0);
 
-    if (Utility::timeStyle == TS_CLOCK)
+    if (Utility::timeStyle == TS_CLOCK || Utility::timeStyle == TS_START_DATE)
     {
         QSharedPointer timeTicker = QSharedPointer<QCPAxisTickerTime>::create();
         timeTicker->setTimeFormat("%h:%m:%s.%z");
@@ -291,7 +291,7 @@ void GraphingWindow::plottableDoubleClick(QCPAbstractPlottable* plottable, int d
         coord /= 1000000;
     else if (Utility::timeStyle == TS_MILLIS)
         coord /= 1000;
-    else if (Utility::timeStyle == TS_CLOCK) // coord is given in seconds but with an offset of one hour
+    else if (Utility::timeStyle == TS_CLOCK || Utility::timeStyle == TS_START_DATE) // coord is given in seconds but with an offset of one hour
         coord -= 3600;
 
     id = plottable->property("id").toInt();
@@ -330,7 +330,7 @@ void GraphingWindow::gotCenterTimeID(uint32_t ID, double timestamp)
         timestamp *= 1000000;
     else if (Utility::timeStyle == TS_MILLIS)
         timestamp *= 1000;
-    else if (Utility::timeStyle == TS_CLOCK)
+    else if (Utility::timeStyle == TS_CLOCK || Utility::timeStyle == TS_START_DATE)
         timestamp += 3600;  // offset of one hour needed
     ui->graphingView->xAxis->setRange(timestamp - offset, timestamp + offset);
     ui->graphingView->replot();
@@ -349,7 +349,7 @@ void GraphingWindow::gotPlaybackTimestamp(double timestamp)
         timestamp *= 1000000;
     else if (Utility::timeStyle == TS_MILLIS)
         timestamp *= 1000;
-    else if (Utility::timeStyle == TS_CLOCK)
+    else if (Utility::timeStyle == TS_CLOCK || Utility::timeStyle == TS_START_DATE)
         timestamp += 3600; // offset of one hour needed
 
     playbackLine->point1->setCoords(timestamp, 0);
@@ -1375,6 +1375,11 @@ void GraphingWindow::appendToGraph(GraphParams &params, CANFrame &frame, QVector
             QDateTime dt = QDateTime::fromMSecsSinceEpoch((frame.timeStamp().microSeconds() / 1000) - params.xbias);
             xVal = (dt.time().msec()/1000.0 + dt.time().second() + dt.time().minute() * 60 + dt.time().hour() * 3600);
         }
+        else if (Utility::timeStyle == TS_START_DATE)
+        {
+            QDateTime dt = Utility::startDate.addMSecs(frame.timeStamp().microSeconds() / 1000 - params.xbias);
+            xVal = (dt.time().second() + dt.time().minute() * 60 + dt.time().hour() * 3600);
+        }
         else
         {
             xVal = (frame.timeStamp().microSeconds() - params.xbias);
@@ -1531,6 +1536,11 @@ void GraphingWindow::createGraph(GraphParams &params, bool createGraphParam, boo
             QDateTime dt = QDateTime::fromMSecsSinceEpoch((frameCache[k].timeStamp().microSeconds() / 1000) - params.xbias);
             x = (dt.time().msecsSinceStartOfDay() / 1000.0);
         }
+        else if (Utility::timeStyle == TS_START_DATE)
+        {
+            QDateTime dt = Utility::startDate.addMSecs(frameCache[k].timeStamp().microSeconds() / 1000 - params.xbias);
+            x = (dt.time().msecsSinceStartOfDay() / 1000.0);
+        }
         else
         {
             x = frameCache[k].timeStamp().microSeconds();

ui/mainsettingsdialog.ui

@@ -230,6 +230,27 @@
              </item>
             </layout>
            </item>
+           <item>
+            <layout class="QHBoxLayout" name="horizontalLayout_8">
+             <item>
+              <widget class="QLabel" name="label_13">
+               <property name="text">
+                <string>Start Date:</string>
+               </property>
+              </widget>
+             </item>
+             <item>
+              <widget class="QLineEdit" name="lineStartDate"/>
+             </item>
+            </layout>
+           </item>
+           <item>
+            <widget class="QCheckBox" name="cbUseStartDate">
+             <property name="text">
+              <string>Use start date</string>
+             </property>
+            </widget>
+           </item>
            <item>
             <widget class="QCheckBox" name="cbCSVAbsTime">
              <property name="text">
@@ -515,6 +536,7 @@
   <tabstop>rbMicros</tabstop>
   <tabstop>rbSysClock</tabstop>
   <tabstop>lineClockFormat</tabstop>
+  <tabstop>lineStartDate</tabstop>
   <tabstop>spinFontSize</tabstop>
   <tabstop>cbFlowUseTimestamp</tabstop>
   <tabstop>cbFlowAutoRef</tabstop>

utility.cpp

@@ -2,5 +2,7 @@
 
 bool Utility::decimalMode = false;
 QString Utility::timeFormat = "MMM-dd HH:mm:ss.zzz";
+QDateTime Utility::startDate = QDateTime::fromString("2025-01-01T00:00:00.000000", Qt::ISODateWithMs);
+bool Utility::useStartDate = false;
 TimeStyle Utility::timeStyle = TS_MICROS;
 QString Utility::fullyQualifiedNameSeperator = "::";

utility.h

@@ -20,7 +20,8 @@ enum TimeStyle
     TS_SECONDS,
     TS_MICROS,
     TS_MILLIS,
-    TS_CLOCK
+    TS_CLOCK,
+    TS_START_DATE,
 };
 
 
@@ -68,6 +69,8 @@ public:
     static bool decimalMode;
     static TimeStyle timeStyle;
     static QString timeFormat;
+    static QDateTime startDate;
+    static bool useStartDate;
 
     static QString fullyQualifiedNameSeperator;
 
@@ -221,6 +224,9 @@ public:
         case TS_CLOCK:
             return QDateTime::fromMSecsSinceEpoch(timestamp / 1000);
             break;
+        case TS_START_DATE:
+            return startDate.addMSecs(timestamp / 1000);
+            break;
         case TS_MILLIS:
             return (double)timestamp / 1000.0;
             break;