Re-instate zoom interval in MainWindow/AllPlot

Added a new signal to MainWindow to trigger
a zoom to interval. This signal has been trapped
in AllPlot (Ride Plot), but will also need to
be supported in;

* Ride Editor - highlight/zoom to interval data
* Aerolab     - Same as ride plot
* Maps        - Zoom in to section

src/AllPlotWindow.cpp

@@ -315,7 +315,7 @@ AllPlotWindow::AllPlotWindow(MainWindow *mainWindow) :
     allPlotLayout->setStretch(1,20);
 
     QVBoxLayout *vlayout = new QVBoxLayout(this);
-    vlayout->setContentsMargins(10,10,10,10);
+    vlayout->setContentsMargins(2,2,2,2);
     vlayout->setSpacing(0);
     vlayout->addWidget(allPlotFrame);
     vlayout->addWidget(stackFrame);
@@ -354,6 +354,7 @@ AllPlotWindow::AllPlotWindow(MainWindow *mainWindow) :
     connect(mainWindow, SIGNAL(rideDirty()), this, SLOT(rideSelected()));
     connect(mainWindow, SIGNAL(zonesChanged()), this, SLOT(zonesChanged()));
     connect(mainWindow, SIGNAL(intervalsChanged()), this, SLOT(intervalsChanged()));
+    connect(mainWindow, SIGNAL(intervalZoom(IntervalItem*)), this, SLOT(zoomInterval(IntervalItem*)));
     connect(mainWindow, SIGNAL(intervalSelected()), this, SLOT(intervalSelected()));
     connect(mainWindow, SIGNAL(configChanged()), allPlot, SLOT(configChanged()));
     connect(mainWindow, SIGNAL(configChanged()), this, SLOT(configChanged()));

src/AllPlotWindow.h

@@ -71,9 +71,6 @@ class AllPlotWindow : public GcWindow
         void clearSelection();
         void hideSelection();
 
-        // zoom to interval range (via span-slider)
-        void zoomInterval(IntervalItem *);
-
         // get properties - the setters are below
         bool isStacked() const { return showStack->isChecked(); }
         int isShowGrid() const { return showGrid->checkState(); }
@@ -116,6 +113,7 @@ class AllPlotWindow : public GcWindow
 
         // trap widget signals
         void zoomChanged();
+        void zoomInterval(IntervalItem *);
         void moveLeft();
         void moveRight();
         void showStackChanged(int state);

src/MainWindow.cpp

@@ -691,6 +691,7 @@ MainWindow::showContextMenuPopup(const QPoint &pos)
         connect(actFrontInt, SIGNAL(triggered(void)), this, SLOT(frontInterval(void)));
         connect(actBackInt, SIGNAL(triggered(void)), this, SLOT(backInterval(void)));
 
+        menu.addAction(actZoomInt);
         menu.addAction(actRenameInt);
         menu.addAction(actDeleteInt);
         menu.exec(intervalWidget->mapToGlobal( pos ));
@@ -1451,7 +1452,7 @@ MainWindow::intervalEdited(QTreeWidgetItem *, int) {
 void
 MainWindow::zoomInterval() {
     // zoom into this interval on allPlot
-    //allPlotWindow->zoomInterval(activeInterval);
+    emit intervalZoom(activeInterval);
 }
 
 void

src/MainWindow.h

@@ -158,6 +158,7 @@ class MainWindow : public QMainWindow
     signals:
 
         void intervalSelected();
+        void intervalZoom(IntervalItem*);
         void intervalsChanged();
         void zonesChanged();
         void seasonsChanged();