Improve ctrl selection, plus show duration above flow graph

sleepyhead/Graphs/gGraph.cpp

@@ -137,6 +137,7 @@ gGraph::gGraph(QString name, gGraphView *graphview, QString title, QString units
     rec_miny = rec_maxy = 0;
     rphysmax_y = rphysmin_y = 0;
     m_zoomY = 0;
+    m_selectedDuration = 0;
 
     if (graphview) {
         graphview->addGraph(this, group);
@@ -697,6 +698,7 @@ void gGraph::mouseMoveEvent(QMouseEvent *event)
 
     if (m_graphview->m_selected_graph == this) {  // Left Mouse button dragging
         if (event->buttons() & Qt::LeftButton) {
+
             //qDebug() << m_title << "Moved" << x << y << left << right << top << bottom << m_width << h;
             int a1 = MIN(x, x2);
             int a2 = MAX(x, x2);
@@ -716,22 +718,22 @@ void gGraph::mouseMoveEvent(QMouseEvent *event)
             }
 
             qint64 a = double(a2 - a1) * xmult;
+            m_selectedDuration = a;
             float d = double(a) / 86400000.0;
             int h = a / 3600000;
             int m = (a / 60000) % 60;
             int s = (a / 1000) % 60;
             int ms(a % 1000);
-            QString str;
 
             if (d > 1) {
-                str.sprintf("%1.0f days", d);
+                m_selDurString.sprintf("%1.0f days", d);
             } else {
 
-                str.sprintf("%02i:%02i:%02i:%03i", h, m, s, ms);
+                m_selDurString.sprintf("%02i:%02i:%02i:%03i", h, m, s, ms);
             }
 
             if (qstatus2) {
-                qstatus2->setText(str);
+                qstatus2->setText(m_selDurString);
             }
 
             doredraw = true;

sleepyhead/Graphs/gGraph.h

@@ -286,6 +286,9 @@ class gGraph : public QObject
 
     static const short maxZoomY = 2;
 
+    inline qint64 selectedDuration() const { return m_selectedDuration; }
+    inline QString selDurString() const { return m_selDurString; }
+
   protected:
     //! \brief Mouse Wheel events
     virtual void wheelEvent(QWheelEvent *event);
@@ -340,6 +343,9 @@ class gGraph : public QObject
     short m_zoomY;
     QRect m_rect;
 
+    qint64 m_selectedDuration;
+    QString m_selDurString;
+
   protected slots:
     //! \brief Deselects any highlights, and schedules a main gGraphView redraw
     void Timeout();

sleepyhead/Graphs/gGraphView.cpp

@@ -1220,6 +1220,7 @@ void gGraphView::mouseMoveEvent(QMouseEvent *event)
             m_lastypos = y;
             //           QPoint p(x,y);
             //           QMouseEvent e(event->type(),p,event->button(),event->buttons(),event->modifiers());
+
             m_graphs[i]->mouseMoveEvent(event);
 
             done = true;
@@ -1558,6 +1559,8 @@ void gGraphView::mouseReleaseEvent(QMouseEvent *event)
     // The graph that got the button press gets the release event
     if (m_button_down) {
         m_button_down = false;
+        m_metaselect = event->modifiers() & Qt::ControlModifier;
+
         if (m_metaselect) {
             m_point_released = event->pos();
         } else {
@@ -1568,12 +1571,12 @@ void gGraphView::mouseReleaseEvent(QMouseEvent *event)
 
 void gGraphView::keyReleaseEvent(QKeyEvent *event)
 {
-    if (m_metaselect) {
+    if (m_metaselect && !(event->modifiers() & Qt::ControlModifier)) {
-        QMouseEvent event(QEvent::MouseButtonRelease, m_point_released, Qt::LeftButton, Qt::LeftButton, event.modifiers());
+        QMouseEvent mevent(QEvent::MouseButtonRelease, m_point_released, Qt::LeftButton, Qt::LeftButton, event->modifiers());
         if (m_graph_index>=0)
-            m_graphs[m_graph_index]->mouseReleaseEvent(&event);
+            m_graphs[m_graph_index]->mouseReleaseEvent(&mevent);
 
-        qDebug() << "Control released";
+        m_metaselect = false;
     }
 #ifdef BROKEN_OPENGL_BUILD
         QWidget::keyReleaseEvent(event);
@@ -1785,6 +1788,9 @@ void gGraphView::wheelEvent(QWheelEvent *event)
 
 void gGraphView::keyPressEvent(QKeyEvent *event)
 {
+    if (m_button_down) {
+        m_metaselect = event->modifiers() & Qt::ControlModifier;
+    }
     if (event->key() == Qt::Key_Tab) {
         event->ignore();
         return;

sleepyhead/Graphs/gGraphView.h

@@ -348,6 +348,9 @@ class gGraphView
     //! \brief Graph drawing routines, returns true if there weren't any graphs to draw
     bool renderGraphs(QPainter &painter);
 
+    //! \brief Used internally by graph mousehandler to set modifier state
+    void setMetaSelect(bool b) { m_metaselect = b; }
+
     // for profiling purposes, a count of lines drawn in a single frame
     int lines_drawn_this_frame;
     int quads_drawn_this_frame;

sleepyhead/Graphs/gLineOverlay.cpp

@@ -285,11 +285,16 @@ void gLineOverlaySummary::paint(QPainter &painter, gGraph &w, const QRegion &reg
 
     if (time > 0) { val = cnt / time; }
 
+    QString a;
 
+    if (w.graphView()->selectionInProgress()) {
 
-    QString a = QObject::tr("Events") + ": " + QString::number(cnt) + ", " +
+        a = QObject::tr("Duration")+": "+w.selDurString();
+    } else {
+
+        a = QObject::tr("Events") + ": " + QString::number(cnt) + ", " +
                 QObject::tr("Duration") + " " + QString().sprintf("%02i:%02i:%02i", h, m, s) + ", " + m_text + ": " + QString::number(val, 'f', 2);
-
+    }
     if (isSpan) {
         float sph;