OP-1611 Added context menu to Scope widget

ground/openpilotgcs/src/plugins/scope/plotdata.cpp

@@ -93,6 +93,23 @@ void PlotData::updatePlotData()
     m_plotCurve->setSamples(m_xDataEntries, m_yDataEntries);
 }
 
+void PlotData::clear()
+{
+    m_meanSum = 0.0f;
+    m_correctionSum = 0.0f;
+    m_correctionCount = 0;
+    m_xDataEntries.clear();
+    m_yDataEntries.clear();
+    while (!m_enumMarkerList.isEmpty()) {
+        QwtPlotMarker *marker = m_enumMarkerList.takeFirst();
+        marker->detach();
+        delete marker;
+    }
+    if (wantsInitialData()) {
+        append(m_object);
+    }
+}
+
 bool PlotData::hasData() const
 {
     if (!m_isEnumPlot) {

ground/openpilotgcs/src/plugins/scope/plotdata.h

@@ -93,6 +93,7 @@ public:
     virtual void removeStaleData() = 0;
 
     void updatePlotData();
+    void clear();
 
     bool hasData() const;
     QString lastDataAsString();

ground/openpilotgcs/src/plugins/scope/scopegadget.cpp

@@ -47,6 +47,7 @@ void ScopeGadget::loadConfiguration(IUAVGadgetConfiguration *config)
     ScopeGadgetConfiguration *sgConfig = qobject_cast<ScopeGadgetConfiguration *>(config);
     ScopeGadgetWidget *widget = qobject_cast<ScopeGadgetWidget *>(m_widget);
 
+    widget->setName(config->name());
     widget->setPlotDataSize(sgConfig->dataSize());
     widget->setRefreshInterval(sgConfig->refreshInterval());
 

ground/openpilotgcs/src/plugins/scope/scopegadgetfactory.cpp

@@ -50,7 +50,6 @@ void ScopeGadgetFactory::startPlotting()
     emit onStartPlotting();
 }
 
-
 Core::IUAVGadget *ScopeGadgetFactory::createGadget(QWidget *parent)
 {
     ScopeGadgetWidget *gadgetWidget = new ScopeGadgetWidget(parent);

ground/openpilotgcs/src/plugins/scope/scopegadgetwidget.cpp

@@ -33,6 +33,7 @@
 #include "uavobject.h"
 #include "coreplugin/icore.h"
 #include "coreplugin/connectionmanager.h"
+#include <coreplugin/icore.h>
 
 #include "qwt/src/qwt_plot_curve.h"
 #include "qwt/src/qwt_plot_grid.h"
@@ -48,6 +49,10 @@
 #include <QPushButton>
 #include <QMutexLocker>
 #include <QWheelEvent>
+#include <QMenu>
+#include <QAction>
+#include <QClipboard>
+#include <QApplication>
 
 #include <qwt/src/qwt_legend_label.h>
 #include <qwt/src/qwt_plot_canvas.h>
@@ -88,6 +93,9 @@ ScopeGadgetWidget::ScopeGadgetWidget(QWidget *parent) : QwtPlot(parent),
     // Listen to autopilot connection events
     connect(cm, SIGNAL(deviceAboutToDisconnect()), this, SLOT(csvLoggingDisconnect()));
     connect(cm, SIGNAL(deviceConnected(QIODevice *)), this, SLOT(csvLoggingConnect()));
+
+    setContextMenuPolicy(Qt::CustomContextMenu);
+    connect(this, SIGNAL(customContextMenuRequested(const QPoint &  )), this, SLOT(popUpMenu(const QPoint &)));
 }
 
 ScopeGadgetWidget::~ScopeGadgetWidget()
@@ -624,3 +632,44 @@ void ScopeGadgetWidget::csvLoggingDisconnect()
         csvLoggingStop();
     }
 }
+
+void ScopeGadgetWidget::popUpMenu(const QPoint &mousePosition)
+{
+    Q_UNUSED(mousePosition);
+
+    QMenu menu;
+    QAction * action = menu.addAction(tr("Clear"));
+    connect(action, &QAction::triggered, this, &ScopeGadgetWidget::clearPlot);
+    action = menu.addAction(tr("Copy to Clipboard"));
+    connect(action, &QAction::triggered, this, &ScopeGadgetWidget::copyToClipboardAsImage);
+    menu.addSeparator();
+    action = menu.addAction(tr("Options..."));
+    connect(action, &QAction::triggered, this, &ScopeGadgetWidget::showOptionDialog);
+    menu.exec(QCursor::pos());
+}
+
+void ScopeGadgetWidget::clearPlot()
+{
+    m_mutex.lock();
+    foreach (PlotData * plot, m_curvesData.values()) {
+        plot->clear();
+    }
+    m_mutex.unlock();
+    replot();
+}
+
+void ScopeGadgetWidget::copyToClipboardAsImage()
+{
+    QPixmap pixmap =  QWidget::grab();
+    if(pixmap.isNull()){
+        qDebug("Failed to capture the plot");
+        return;
+    }
+    QClipboard *clipboard = QApplication::clipboard();
+    clipboard->setPixmap(pixmap);
+}
+
+void ScopeGadgetWidget::showOptionDialog()
+{
+    Core::ICore::instance()->showOptionsDialog("ScopeGadget", m_name);
+}

ground/openpilotgcs/src/plugins/scope/scopegadgetwidget.h

@@ -69,6 +69,7 @@ public:
     ScopeGadgetWidget(QWidget *parent = 0);
     ~ScopeGadgetWidget();
 
+    void setName (QString name) { m_name = name; }
     void setupSequentialPlot();
     void setupChronoPlot();
     void setupUAVObjectPlot();
@@ -137,12 +138,17 @@ private slots:
     void stopPlotting();
     void csvLoggingConnect();
     void csvLoggingDisconnect();
+    void popUpMenu(const QPoint &mousePosition);
+    void clearPlot();
+    void copyToClipboardAsImage();
+    void showOptionDialog();
 
 private:
 
     void preparePlot(PlotType plotType);
     void setupExamplePlot();
 
+    QString m_name;
     PlotType m_plotType;
 
     double m_plotDataSize;