implement seeking in playback window and add playback line in graphing view

frameplaybackobject.cpp

@@ -1,4 +1,5 @@
 #include "frameplaybackobject.h"
+#include <algorithm>
 
 FramePlaybackObject::FramePlaybackObject()
 {
@@ -290,6 +291,47 @@ void FramePlaybackObject::pausePlayback()
     emit statusUpdate(currentPosition);
 }
 
+void FramePlaybackObject::seekPlayback(double timestamp)
+{
+    if (currentSeqItem == NULL)
+        return;
+
+    /* make sure we execute in mThread context */
+    if (mThread_p && (mThread_p != QThread::currentThread()))
+    {
+        QMetaObject::invokeMethod(this, "seekPlayback", Qt::BlockingQueuedConnection, timestamp);
+        return;
+    }
+
+    // playbackTimer->stop();
+    // playbackActive = false;
+
+    timestamp *= 1000000; // convert to us
+
+    size_t lowIdx = 0;
+    size_t highIdx = currentSeqItem->data.count() - 1;
+
+    while (lowIdx < highIdx)
+    {
+        int midIdx = lowIdx + (highIdx - lowIdx) / 2;
+
+        CANFrame midFrame = currentSeqItem->data[midIdx];
+        if (midFrame.timeStamp().seconds() * 1000000 + midFrame.timeStamp().microSeconds() < timestamp)
+        {
+            lowIdx = midIdx + 1;
+        }
+        else
+        {
+            highIdx = midIdx - 1;
+        }
+    }
+
+    currentPosition = lowIdx;
+    emit statusUpdate(currentPosition);
+
+    startPlaybackForward();
+}
+
 void FramePlaybackObject::setSequenceObject(SequenceItem *item)
 {
     currentSeqItem = item;

frameplaybackobject.h

@@ -54,6 +54,7 @@ public slots:
     void stepPlaybackBackward();
     void stopPlayback();
     void pausePlayback();
+    void seekPlayback(double timestamp);
 
     void setSequenceObject(SequenceItem *item);
     void setUseOriginalTiming(bool state);

frameplaybackwindow.cpp

@@ -407,10 +407,24 @@ void FramePlaybackWindow::EndOfFrameCache()
     }
 }
 
+void FramePlaybackWindow::gotCenterTimeID(uint32_t ID, double timestamp)
+{
+    Q_UNUSED(ID);
+
+    // isPlaying = false;
+    // wantPlaying = false;
+    // haveIncomingTraffic = false;
+
+    playbackObject.seekPlayback(timestamp);
+}
+
 void FramePlaybackWindow::getStatusUpdate(int frameNum)
 {
     currentPosition = frameNum;
     updateFrameLabel();
+    QCanBusFrame::TimeStamp ts = seqItems[currentSeqNum].data[currentPosition].timeStamp();
+    
+    emit sendCurrentTimestamp((double)(ts.seconds()) + ts.microSeconds() / 1000000.0f);
 }
 
 void FramePlaybackWindow::updateFrameLabel()
@@ -426,15 +440,40 @@ void FramePlaybackWindow::updateFrameLabel()
     {
         ui->lblCurrPlayback->setText("");
         ui->lblPosition->setText("");
+        ui->timePosition->setText("");
         return;
     }
 
     ui->lblCurrPlayback->setText(currentSeqItem->filename);
 
+    // convert current and last timestamp to text according to time format
+    QVariant currentTimestamp = Utility::formatTimestamp(seqItems[row].data[currentPosition].timeStamp().microSeconds());
+    QString currentTimestampText;
+    if (currentTimestamp.typeId() == QMetaType::Double)
+        currentTimestampText = QString::number(currentTimestamp.toDouble(), 'f', 5);
+    else if (currentTimestamp.typeId() == QMetaType::LongLong || currentTimestamp.typeId() == QMetaType::ULongLong)
+        currentTimestampText = QString::number(currentTimestamp.toLongLong());
+    else if (currentTimestamp.typeId() == QMetaType::QDateTime)
+        currentTimestampText = currentTimestamp.toDateTime().toString(Utility::timeFormat);
+    else
+        currentTimestampText = currentTimestamp.toString();
+
+    QVariant lastTimestamp = Utility::formatTimestamp(seqItems[row].data.last().timeStamp().microSeconds());
+    QString lastTimestampText;
+    if (lastTimestamp.typeId() == QMetaType::Double)
+        lastTimestampText = QString::number(lastTimestamp.toDouble(), 'f', 5);
+    else if (lastTimestamp.typeId() == QMetaType::LongLong || lastTimestamp.typeId() == QMetaType::ULongLong)
+        lastTimestampText = QString::number(lastTimestamp.toLongLong());
+    else if (lastTimestamp.typeId() == QMetaType::QDateTime)
+        lastTimestampText = lastTimestamp.toDateTime().toString(Utility::timeFormat);
+    else
+        lastTimestampText = lastTimestamp.toString();
+
     if (wantPlaying && !isPlaying)
         ui->lblPosition->setText(QString::number(currentPosition) + tr(" of ") + QString::number(seqItems[row].data.count()) + "  (WAITING)");
     else
         ui->lblPosition->setText(QString::number(currentPosition) + tr(" of ") + QString::number(seqItems[row].data.count()));
+    ui->timePosition->setText(currentTimestampText + tr(" of ") + lastTimestampText);
 }
 
 void FramePlaybackWindow::seqTableCellClicked(int row, int col)

frameplaybackwindow.h

@@ -42,10 +42,14 @@ private slots:
     void saveFilters();
     void loadFilters();
     void useOrigTimingClicked();
+    void gotCenterTimeID(uint32_t ID, double timestamp);
     void getStatusUpdate(int frameNum);
     void EndOfFrameCache();
     void updatedFrames(int);
 
+signals:
+    void sendCurrentTimestamp(double timestamp);
+
 private:
     Ui::FramePlaybackWindow *ui;
     QList<int> foundID;

mainwindow.cpp

@@ -1684,6 +1684,11 @@ void MainWindow::showGraphingWindow()
         connect(lastGraphingWindow, SIGNAL(sendCenterTimeID(uint32_t,double)), flowViewWindow, SLOT(gotCenterTimeID(uint32_t,double)));
         connect(flowViewWindow, SIGNAL(sendCenterTimeID(uint32_t,double)), lastGraphingWindow, SLOT(gotCenterTimeID(uint32_t,double)));
     }
+    if (playbackWindow)
+    {
+        connect(lastGraphingWindow, SIGNAL(sendCenterTimeID(uint32_t,double)), playbackWindow, SLOT(gotCenterTimeID(uint32_t,double)));
+        connect(playbackWindow, SIGNAL(sendCurrentTimestamp(double)), lastGraphingWindow, SLOT(gotPlaybackTimestamp(double)));
+    }
 
     lastGraphingWindow->show();
 }
@@ -1786,6 +1791,13 @@ void MainWindow::showPlaybackWindow()
             playbackWindow = new FramePlaybackWindow(model->getListReference());
         else
             playbackWindow = new FramePlaybackWindow(model->getFilteredListReference());
+
+        connect(this, SIGNAL(sendCenterTimeID(uint32_t, double)), playbackWindow, SLOT(gotCenterTimeID(uint32_t, double)));
+        for (auto &&graphWindow : graphWindows)
+        {
+            connect(graphWindow, SIGNAL(sendCenterTimeID(uint32_t, double)), playbackWindow, SLOT(gotCenterTimeID(uint32_t, double)));
+            connect(playbackWindow, SIGNAL(sendCurrentTimestamp(double)), graphWindow, SLOT(gotPlaybackTimestamp(double)));
+        }
     }
     playbackWindow->show();
 }

re/graphingwindow.cpp

@@ -69,6 +69,13 @@ GraphingWindow::GraphingWindow(const QVector<CANFrame> *frames, QWidget *parent)
     itemTracer->setStyle(QCPItemTracer::tsCircle);
     itemTracer->setSize(20);
 
+    playbackPen.setWidth(1);
+    playbackPen.setColor(Qt::red);
+    playbackLine = new QCPItemStraightLine(ui->graphingView);
+    playbackLine->setSelectable(false);
+    playbackLine->setPen(playbackPen);
+    playbackLine->setVisible(false);
+
     // connect slot that ties some axis selections together (especially opposite axes):
     connect(ui->graphingView, SIGNAL(selectionChangedByUser()), this, SLOT(selectionChanged()));
     //connect up the mouse controls
@@ -329,6 +336,28 @@ void GraphingWindow::gotCenterTimeID(uint32_t ID, double timestamp)
     ui->graphingView->replot();
 }
 
+void GraphingWindow::gotPlaybackTimestamp(double timestamp)
+{
+    if (timestamp == INFINITY) {
+        playbackLine->setVisible(false);
+        return;
+    }
+    playbackLine->setVisible(true);
+    
+    // timestamp is always givin in seconds
+    if (Utility::timeStyle == TS_MICROS)
+        timestamp *= 1000000;
+    else if (Utility::timeStyle == TS_MILLIS)
+        timestamp *= 1000;
+    else if (Utility::timeStyle == TS_CLOCK)
+        timestamp += 3600; // offset of one hour needed
+
+    playbackLine->point1->setCoords(timestamp, 0);
+    playbackLine->point2->setCoords(timestamp, 1);
+
+    ui->graphingView->replot();
+}
+
 void GraphingWindow::titleDoubleClick(QMouseEvent* event, QCPTextElement* title)
 {
   Q_UNUSED(event)

re/graphingwindow.h

@@ -84,6 +84,7 @@ private slots:
     void editSelectedGraph();
     void updatedFrames(int);
     void gotCenterTimeID(uint32_t ID, double timestamp);
+    void gotPlaybackTimestamp(double timestamp);
     void resetView();
     void zoomIn();
     void zoomOut();
@@ -105,6 +106,8 @@ private:
     QCPSelectionDecorator *selDecorator;
     QCPItemText *locationText;
     QCPItemTracer *itemTracer;
+    QPen playbackPen;
+    QCPItemStraightLine *playbackLine;
     bool needScaleSetup; //do we need to set x,y graphing extents?
     bool useOpenGL;
     bool followGraphEnd;

ui/frameplaybackwindow.ui

@@ -227,6 +227,13 @@
          </property>
         </widget>
        </item>
+       <item alignment="Qt::AlignHCenter">
+        <widget class="QLabel" name="timePosition">
+         <property name="text">
+          <string>x of y</string>
+         </property>
+        </widget>
+       </item>
       </layout>
      </item>
     </layout>