MainWindow.cc

/*=====================================================================

QGroundControl Open Source Ground Control Station

(c) 2009 - 2013 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>

This file is part of the QGROUNDCONTROL project

    QGROUNDCONTROL is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    QGROUNDCONTROL is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.

======================================================================*/

/**
 * @file
 *   @brief Implementation of class MainWindow
 *   @author Lorenz Meier <mail@qgroundcontrol.org>
 */

#include <QSettings>
#include <QDockWidget>
#include <QNetworkInterface>
#include <QDebug>
#include <QTimer>
#include <QHostInfo>
#include <QSplashScreen>
#include <QGCHilLink.h>
#include <QGCHilConfiguration.h>
#include <QGCHilFlightGearConfiguration.h>
#include <QQuickView>
#include <QDesktopWidget>

#include "QGC.h"
#include "MAVLinkSimulationLink.h"
#include "SerialLink.h"
#include "UDPLink.h"
#include "MAVLinkProtocol.h"
#include "CommConfigurationWindow.h"
#include "QGCWaypointListMulti.h"
#include "MainWindow.h"
#include "JoystickWidget.h"
#include "GAudioOutput.h"
#include "QGCToolWidget.h"
#include "QGCMAVLinkLogPlayer.h"
#include "SettingsDialog.h"
#include "QGCMapTool.h"
#include "MAVLinkDecoder.h"
#include "QGCMAVLinkMessageSender.h"
#include "QGCRGBDView.h"
#include "UASQuickView.h"
#include "QGCDataPlot2D.h"
#include "Linecharts.h"
#include "QGCTabbedInfoView.h"
#include "UASRawStatusView.h"
#include "PrimaryFlightDisplay.h"
#include "SetupView.h"
#include "SerialSettingsDialog.h"
#include "terminalconsole.h"
#include "menuactionhelper.h"
#include "QGCUASFileViewMulti.h"
#include "QGCApplication.h"
#include "QGCFileDialog.h"
#include "QGCMessageBox.h"

#ifdef QGC_OSG_ENABLED
#include "Q3DWidgetFactory.h"
#endif

#include "LogCompressor.h"

static MainWindow* _instance = NULL;   ///< @brief MainWindow singleton

MainWindow* MainWindow::_create(QSplashScreen* splashScreen, enum MainWindow::CUSTOM_MODE mode)
{
    Q_ASSERT(_instance == NULL);
    
    new MainWindow(splashScreen, mode);
    
    // _instance is set in constructor
    Q_ASSERT(_instance);

    return _instance;
}

MainWindow* MainWindow::instance(void)
{
    return _instance;
}

void MainWindow::deleteInstance(void)
{
    delete this;
}

/// @brief Private constructor for MainWindow. MainWindow singleton is only ever created
///         by MainWindow::_create method. Hence no other code should have access to
///         constructor.
MainWindow::MainWindow(QSplashScreen* splashScreen, enum MainWindow::CUSTOM_MODE mode) :
    currentView(VIEW_FLIGHT),
    centerStackActionGroup(new QActionGroup(this)),
    autoReconnect(false),
    simulationLink(NULL),
    lowPowerMode(false),
    customMode(mode),
    menuActionHelper(new MenuActionHelper()),
    _splashScreen(splashScreen)
{
    Q_ASSERT(_instance == NULL);
    _instance = this;
    
    if (splashScreen) {
        connect(this, &MainWindow::initStatusChanged, splashScreen, &QSplashScreen::showMessage);
    }
    
    connect(menuActionHelper, SIGNAL(needToShowDockWidget(QString,bool)),SLOT(showDockWidget(QString,bool)));
        
    loadSettings();
    
    if (settings.contains("ADVANCED_MODE"))
    {
        menuActionHelper->setAdvancedMode(settings.value("ADVANCED_MODE").toBool());
    }

    // Select the proper view. Default to the flight view or load the last one used if it's supported.
    if (!settings.contains("CURRENT_VIEW"))
    {
        settings.setValue("CURRENT_VIEW", currentView);
    }
    else
    {
        VIEW_SECTIONS currentViewCandidate = (VIEW_SECTIONS) settings.value("CURRENT_VIEW", currentView).toInt();
        switch (currentViewCandidate) {
            case VIEW_ENGINEER:
            case VIEW_MISSION:
            case VIEW_FLIGHT:
            case VIEW_SIMULATION:
            case VIEW_SETUP:
            case VIEW_TERMINAL:

// And only re-load views if they're supported with the current QGC build
#ifdef QGC_OSG_ENABLED
            case VIEW_LOCAL3D:
#endif
#ifdef QGC_GOOGLE_EARTH_ENABLED
            case VIEW_GOOGLEEARTH:
#endif

                currentView = currentViewCandidate;
            default:
                // If an invalid view candidate was found in the settings file, just use the default view and re-save.
                settings.setValue("CURRENT_VIEW", currentView);
                break;
        }
    }

    emit initStatusChanged(tr("Setting up user interface"), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));

    // Setup user interface
    ui.setupUi(this);
    menuActionHelper->setMenu(ui.menuTools);

    // Set dock options
    setDockOptions(AnimatedDocks | AllowTabbedDocks | AllowNestedDocks);

    configureWindowName();

    // Setup corners
    setCorner(Qt::BottomRightCorner, Qt::BottomDockWidgetArea);

    // Qt 4 on Ubuntu does place the native menubar correctly so on Linux we revert back to in-window menu bar.
    // TODO: Check that this is still necessary on Qt5 on Ubuntu
#ifdef Q_OS_LINUX
    menuBar()->setNativeMenuBar(false);
#endif

    // Setup UI state machines
    centerStackActionGroup->setExclusive(true);

    centerStack = new QStackedWidget(this);
    setCentralWidget(centerStack);


    // Load Toolbar
    toolBar = new QGCToolBar(this);
    this->addToolBar(toolBar);

    // Add the perspectives to the toolbar
    QList<QAction*> actions;
    actions << ui.actionSetup;
    actions << ui.actionMissionView;
    actions << ui.actionFlightView;
    actions << ui.actionEngineersView;
    toolBar->setPerspectiveChangeActions(actions);

    // Add actions for advanced users (displayed in dropdown under "advanced")
    QList<QAction*> advancedActions;
    advancedActions << ui.actionGoogleEarthView;
    advancedActions << ui.actionLocal3DView;
    advancedActions << ui.actionTerminalView;
    advancedActions << ui.actionSimulationView;
    toolBar->setPerspectiveChangeAdvancedActions(advancedActions);

    setStatusBar(new QStatusBar(this));
    statusBar()->setSizeGripEnabled(true);

    emit initStatusChanged(tr("Building common widgets."), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));

    buildCommonWidgets();
    connectCommonWidgets();

    emit initStatusChanged(tr("Building common actions"), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));

    // Create actions
    connectCommonActions();

    // Populate link menu
    emit initStatusChanged(tr("Populating link menu"), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));
    QList<LinkInterface*> links = LinkManager::instance()->getLinks();
    foreach(LinkInterface* link, links)
    {
        _addLinkMenu(link);
    }

    connect(LinkManager::instance(), &LinkManager::newLink, this, &MainWindow::_addLinkMenu);
    
    // Connect user interface devices
    emit initStatusChanged(tr("Initializing joystick interface"), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));
    joystick = new JoystickInput();

#ifdef QGC_MOUSE_ENABLED_WIN
    emit initStatusChanged(tr("Initializing 3D mouse interface"), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));

    mouseInput = new Mouse3DInput(this);
    mouse = new Mouse6dofInput(mouseInput);
#endif //QGC_MOUSE_ENABLED_WIN

#if QGC_MOUSE_ENABLED_LINUX
    emit initStatusChanged(tr("Initializing 3D mouse interface"), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));

    mouse = new Mouse6dofInput(this);
    connect(this, SIGNAL(x11EventOccured(XEvent*)), mouse, SLOT(handleX11Event(XEvent*)));
#endif //QGC_MOUSE_ENABLED_LINUX

    // Connect link
    if (autoReconnect)
    {
        LinkManager* linkMgr = LinkManager::instance();
        Q_ASSERT(linkMgr);
        
        SerialLink* link = new SerialLink();
        
        // Add to registry
        linkMgr->addLink(link);
        linkMgr->connectLink(link);
    }

    // Set low power mode
    enableLowPowerMode(lowPowerMode);

    // Initialize window state
    windowStateVal = windowState();

    emit initStatusChanged(tr("Restoring last view state"), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));

    // Restore the window setup
    loadViewState();

    emit initStatusChanged(tr("Restoring last window size"), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));
    // Restore the window position and size
    if (settings.contains(getWindowGeometryKey()))
    {
        // Restore the window geometry
        restoreGeometry(settings.value(getWindowGeometryKey()).toByteArray());
    }
    else
    {
        // Adjust the size
        const int screenWidth = QApplication::desktop()->width();
        const int screenHeight = QApplication::desktop()->height();

        if (screenWidth < 1500)
        {
            resize(screenWidth, screenHeight - 80);
        }
        else
        {
            resize(screenWidth*0.67f, qMin(screenHeight, (int)(screenWidth*0.67f*0.67f)));
        }

    }

    // Make sure the proper fullscreen/normal menu item is checked properly.
    if (isFullScreen())
    {
        ui.actionFullscreen->setChecked(true);
        ui.actionNormal->setChecked(false);
    }
    else
    {
        ui.actionFullscreen->setChecked(false);
        ui.actionNormal->setChecked(true);
    }

    // And that they will stay checked properly after user input
    QObject::connect(ui.actionFullscreen, SIGNAL(triggered()), this, SLOT(fullScreenActionItemCallback()));
    QObject::connect(ui.actionNormal, SIGNAL(triggered()), this,SLOT(normalActionItemCallback()));


    // Set OS dependent keyboard shortcuts for the main window, non OS dependent shortcuts are set in MainWindow.ui
#ifdef Q_OS_MACX
    ui.actionSetup->setShortcut(QApplication::translate("MainWindow", "Meta+1", 0));
    ui.actionMissionView->setShortcut(QApplication::translate("MainWindow", "Meta+2", 0));
    ui.actionFlightView->setShortcut(QApplication::translate("MainWindow", "Meta+3", 0));
    ui.actionEngineersView->setShortcut(QApplication::translate("MainWindow", "Meta+4", 0));
    ui.actionGoogleEarthView->setShortcut(QApplication::translate("MainWindow", "Meta+5", 0));
    ui.actionLocal3DView->setShortcut(QApplication::translate("MainWindow", "Meta+6", 0));
    ui.actionTerminalView->setShortcut(QApplication::translate("MainWindow", "Meta+7", 0));
    ui.actionSimulationView->setShortcut(QApplication::translate("MainWindow", "Meta+8", 0));
    ui.actionFullscreen->setShortcut(QApplication::translate("MainWindow", "Meta+Return", 0));
#else
    ui.actionSetup->setShortcut(QApplication::translate("MainWindow", "Ctrl+1", 0));
    ui.actionMissionView->setShortcut(QApplication::translate("MainWindow", "Ctrl+2", 0));
    ui.actionFlightView->setShortcut(QApplication::translate("MainWindow", "Ctrl+3", 0));
    ui.actionEngineersView->setShortcut(QApplication::translate("MainWindow", "Ctrl+4", 0));
    ui.actionGoogleEarthView->setShortcut(QApplication::translate("MainWindow", "Ctrl+5", 0));
    ui.actionLocal3DView->setShortcut(QApplication::translate("MainWindow", "Ctrl+6", 0));
    ui.actionTerminalView->setShortcut(QApplication::translate("MainWindow", "Ctrl+7", 0));
    ui.actionSimulationView->setShortcut(QApplication::translate("MainWindow", "Ctrl+8", 0));
    ui.actionFullscreen->setShortcut(QApplication::translate("MainWindow", "Ctrl+Return", 0));
#endif

    connect(&windowNameUpdateTimer, SIGNAL(timeout()), this, SLOT(configureWindowName()));
    windowNameUpdateTimer.start(15000);
    emit initStatusChanged(tr("Done"), Qt::AlignLeft | Qt::AlignBottom, QColor(62, 93, 141));

	if (!qgcApp()->runningUnitTests()) {
		show();
	}
}

MainWindow::~MainWindow()
{
    if (simulationLink)
    {
        delete simulationLink;
        simulationLink = NULL;
    }
    if (joystick)
    {
        joystick->shutdown();
        joystick->wait(5000);
        delete joystick;
        joystick = NULL;
    }

    // Get and delete all dockwidgets and contained
    // widgets
    QObjectList childList(this->children());

    QObjectList::iterator i;
    QDockWidget* dockWidget;
    for (i = childList.begin(); i != childList.end(); ++i)
    {
        dockWidget = dynamic_cast<QDockWidget*>(*i);
        if (dockWidget)
        {
            // Remove dock widget from main window
            // removeDockWidget(dockWidget);
            // delete dockWidget->widget();
            delete dockWidget;
            dockWidget = NULL;
        }
        else if (dynamic_cast<QWidget*>(*i))
        {
            delete dynamic_cast<QWidget*>(*i);
            *i = NULL;
        }
    }
    // Delete all UAS objects
    delete menuActionHelper;
    for (int i=0;i<commsWidgetList.size();i++)
    {
        commsWidgetList[i]->deleteLater();
    }
    
    _instance = NULL;
}

void MainWindow::resizeEvent(QResizeEvent * event)
{
    QMainWindow::resizeEvent(event);
}

QString MainWindow::getWindowStateKey()
{
    if (UASManager::instance()->getActiveUAS())
    {
        return QString::number(currentView)+"_windowstate_" + QString::number(getCustomMode()) + "_" + UASManager::instance()->getActiveUAS()->getAutopilotTypeName();
    }
    else
        return QString::number(currentView)+"_windowstate_" + QString::number(getCustomMode());
}

QString MainWindow::getWindowGeometryKey()
{
    return "_geometry";
}

void MainWindow::buildCustomWidget()
{
    // Create custom widgets
    QList<QGCToolWidget*> widgets = QGCToolWidget::createWidgetsFromSettings(this);

    if (widgets.size() > 0)
    {
        ui.menuTools->addSeparator();
    }

    for(int i = 0; i < widgets.size(); ++i)
    {
        // Check if this widget already has a parent, do not create it in this case
        QGCToolWidget* tool = widgets.at(i);
        QDockWidget* dock = dynamic_cast<QDockWidget*>(tool->parentWidget());
        if (!dock)
        {
            QSettings settings;
            settings.beginGroup("QGC_MAINWINDOW");

            // Load dock widget location (default is bottom)
            Qt::DockWidgetArea location = tool->getDockWidgetArea(currentView);

            int view = settings.value(QString("TOOL_PARENT_") + tool->objectName(),-1).toInt();
            settings.endGroup();

            QDockWidget* dock;

            switch (view)
            {
            case VIEW_ENGINEER:
                dock = createDockWidget(engineeringView,tool,tool->getTitle(),tool->objectName(),(VIEW_SECTIONS)view,location);
                break;
            default: // Flight view is the default.
            case VIEW_FLIGHT:
                dock = createDockWidget(pilotView,tool,tool->getTitle(),tool->objectName(),(VIEW_SECTIONS)view,location);
                break;
            case VIEW_SIMULATION:
                dock = createDockWidget(simView,tool,tool->getTitle(),tool->objectName(),(VIEW_SECTIONS)view,location);
                break;
            case VIEW_MISSION:
                dock = createDockWidget(plannerView,tool,tool->getTitle(),tool->objectName(),(VIEW_SECTIONS)view,location);
                break;
            case VIEW_GOOGLEEARTH:
                dock = createDockWidget(googleEarthView,tool,tool->getTitle(),tool->objectName(),(VIEW_SECTIONS)view,location);
                break;
            case VIEW_LOCAL3D:
                dock = createDockWidget(local3DView,tool,tool->getTitle(),tool->objectName(),(VIEW_SECTIONS)view,location);
                break;
            }

            // XXX temporary "fix"
            dock->hide();
        }
    }
}

void MainWindow::buildCommonWidgets()
{
    // Add generic MAVLink decoder
    mavlinkDecoder = new MAVLinkDecoder(MAVLinkProtocol::instance(), this);
    connect(mavlinkDecoder, SIGNAL(valueChanged(int,QString,QString,QVariant,quint64)),
                      this, SIGNAL(valueChanged(int,QString,QString,QVariant,quint64)));

    // Log player
    logPlayer = new QGCMAVLinkLogPlayer(MAVLinkProtocol::instance(), statusBar());
    statusBar()->addPermanentWidget(logPlayer);

    // Initialize all of the views, if they haven't been already, and add their central widgets
    if (!plannerView)
    {
        plannerView = new SubMainWindow(this);
        plannerView->setObjectName("VIEW_MISSION");
        plannerView->setCentralWidget(new QGCMapTool(this));
        addToCentralStackedWidget(plannerView, VIEW_MISSION, "Maps");
    }
    if (!pilotView)
    {
        pilotView = new SubMainWindow(this);
        pilotView->setObjectName("VIEW_FLIGHT");
        pilotView->setCentralWidget(new PrimaryFlightDisplay(this));
        addToCentralStackedWidget(pilotView, VIEW_FLIGHT, "Pilot");
    }
    if (!terminalView)
    {
        terminalView = new SubMainWindow(this);
        terminalView->setObjectName("VIEW_TERMINAL");
        TerminalConsole *terminalConsole = new TerminalConsole(this);
        terminalView->setCentralWidget(terminalConsole);
        addToCentralStackedWidget(terminalView, VIEW_TERMINAL, tr("Terminal View"));
    }
    if (!setupView)
    {
        setupView = new SubMainWindow(this);
        setupView->setObjectName("VIEW_SETUP");
        setupView->setCentralWidget((QWidget*)new SetupView(this));
        addToCentralStackedWidget(setupView, VIEW_SETUP, "Setup");
    }
    if (!engineeringView)
    {
        engineeringView = new SubMainWindow(this);
        engineeringView->setObjectName("VIEW_ENGINEER");
        engineeringView->setCentralWidget(new QGCDataPlot2D(this));
        addToCentralStackedWidget(engineeringView, VIEW_ENGINEER, tr("Logfile Plot"));
    }
#ifdef QGC_GOOGLE_EARTH_ENABLED
    if (!googleEarthView)
    {
        googleEarthView = new SubMainWindow(this);
        googleEarthView->setObjectName("VIEW_GOOGLEEARTH");
        googleEarthView->setCentralWidget(new QGCGoogleEarthView(this));
        addToCentralStackedWidget(googleEarthView, VIEW_GOOGLEEARTH, tr("Google Earth View"));
    }
#endif
#ifdef QGC_OSG_ENABLED
    if (!local3DView)
    {
        q3DWidget = Q3DWidgetFactory::get("PIXHAWK", this);
        q3DWidget->setObjectName("VIEW_3DWIDGET");

        local3DView = new SubMainWindow(this);
        local3DView->setObjectName("VIEW_LOCAL3D");
        local3DView->setCentralWidget(q3DWidget);
        addToCentralStackedWidget(local3DView, VIEW_LOCAL3D, tr("Local 3D View"));
    }
#endif

    if (!simView)
    {
        simView = new SubMainWindow(this);
        simView->setObjectName("VIEW_SIMULATOR");
        simView->setCentralWidget(new QGCMapTool(this));
        addToCentralStackedWidget(simView, VIEW_SIMULATION, tr("Simulation View"));
    }

    // Add dock widgets for the planner view
    createDockWidget(plannerView, new UASListWidget(this), tr("Unmanned Systems"), "UNMANNED_SYSTEM_LIST_DOCKWIDGET", VIEW_MISSION, Qt::LeftDockWidgetArea);
    createDockWidget(plannerView, new QGCWaypointListMulti(this), tr("Mission Plan"), "WAYPOINT_LIST_DOCKWIDGET", VIEW_MISSION, Qt::BottomDockWidgetArea);

    // Add dock widgets for the pilot view
    createDockWidget(pilotView, new DebugConsole(this), tr("Communications Console"), "COMMUNICATION_CONSOLE_DOCKWIDGET", VIEW_FLIGHT, Qt::LeftDockWidgetArea);
    QGCTabbedInfoView *infoview = new QGCTabbedInfoView(this);
    infoview->addSource(mavlinkDecoder);
    createDockWidget(pilotView, infoview, tr("Info View"), "UAS_INFO_INFOVIEW_DOCKWIDGET", VIEW_FLIGHT, Qt::LeftDockWidgetArea);

    // Add dock widgets for the simulation view
    createDockWidget(simView,new UASControlWidget(this),tr("Control"),"UNMANNED_SYSTEM_CONTROL_DOCKWIDGET",VIEW_SIMULATION,Qt::LeftDockWidgetArea);
    createDockWidget(simView,new QGCWaypointListMulti(this),tr("Mission Plan"),"WAYPOINT_LIST_DOCKWIDGET",VIEW_SIMULATION,Qt::BottomDockWidgetArea);
    createDockWidget(simView, new ParameterInterface(this), tr("Onboard Parameters"), "PARAMETER_INTERFACE_DOCKWIDGET", VIEW_SIMULATION, Qt::RightDockWidgetArea);
    createDockWidget(simView, new PrimaryFlightDisplay(this), tr("Primary Flight Display"), "PRIMARY_FLIGHT_DISPLAY_DOCKWIDGET", VIEW_SIMULATION, Qt::RightDockWidgetArea);

    // Add dock widgets for the engineering view
    createDockWidget(engineeringView, new QGCMAVLinkInspector(MAVLinkProtocol::instance(), this), tr("MAVLink Inspector"), "MAVLINK_INSPECTOR_DOCKWIDGET", VIEW_ENGINEER, Qt::RightDockWidgetArea);
    createDockWidget(engineeringView, new ParameterInterface(this), tr("Onboard Parameters"), "PARAMETER_INTERFACE_DOCKWIDGET", VIEW_ENGINEER, Qt::RightDockWidgetArea);
    createDockWidget(engineeringView, new QGCUASFileViewMulti(this), tr("Onboard Files"), "FILE_VIEW_DOCKWIDGET", VIEW_ENGINEER, Qt::RightDockWidgetArea);
    createDockWidget(engineeringView, new HUD(320, 240, this), tr("Video Downlink"), "HEAD_UP_DISPLAY_DOCKWIDGET", VIEW_ENGINEER, Qt::RightDockWidgetArea);

    // Add some extra widgets to the Tool Widgets menu
    menuActionHelper->createToolAction(tr("Map View"), "MAP_VIEW_DOCKWIDGET");
    menuActionHelper->createToolAction(tr("Status Details"), "UAS_STATUS_DETAILS_DOCKWIDGET");
    menuActionHelper->createToolAction(tr("Flight Display"), "HEAD_DOWN_DISPLAY_1_DOCKWIDGET");
    menuActionHelper->createToolAction(tr("Actuator Status"), "HEAD_DOWN_DISPLAY_2_DOCKWIDGET");

    // Add any custom widgets last to all menus and layouts
    buildCustomWidget();
}

void MainWindow::addTool(SubMainWindow *parent,VIEW_SECTIONS view,QDockWidget* widget, const QString& title, Qt::DockWidgetArea area)
{
    menuActionHelper->createToolActionForCustomDockWidget(title, widget->objectName(), widget, view);
    parent->addDockWidget(area,widget);
}

QDockWidget* MainWindow::createDockWidget(QWidget *subMainWindowParent,QWidget *child,const QString& title,const QString& objectName,VIEW_SECTIONS view,Qt::DockWidgetArea area,const QSize& minSize)
{
    SubMainWindow *parent = qobject_cast<SubMainWindow*>(subMainWindowParent);
    Q_ASSERT(parent);
    QDockWidget* dockWidget = menuActionHelper->createDockWidget(title, objectName);
    child->setObjectName(objectName);
    dockWidget->setWidget(child); //Set child objectName before setting dockwidget, since the dock widget might react to object name changes
    connect(child, SIGNAL(destroyed()), dockWidget, SLOT(deleteLater()));  //Our dockwidget only has only child widget, so kill the dock widget if the child is deleted

    if (minSize.height() >= 0)
        dockWidget->setMinimumHeight(minSize.height());
    if (minSize.width() >= 0)
        dockWidget->setMinimumWidth(minSize.width());
    addTool(parent,view,dockWidget,title,area);
    return dockWidget;
}

void MainWindow::showDockWidget(const QString& name, bool show)
{
    QDockWidget *dockWidget = menuActionHelper->getDockWidget(currentView, name);
    if(dockWidget)
        dockWidget->setVisible(show);
    else if (show)
        loadDockWidget(name);
}

void MainWindow::fullScreenActionItemCallback()
{
    ui.actionNormal->setChecked(false);
}

void MainWindow::normalActionItemCallback()
{
    ui.actionFullscreen->setChecked(false);
}

void MainWindow::loadDockWidget(const QString& name)
{
    if(menuActionHelper->containsDockWidget(currentView, name))
        return;

    if (name.startsWith("HIL_CONFIG"))
    {
        //It's a HIL widget.
        showHILConfigurationWidget(UASManager::instance()->getActiveUAS());
    }
    else if (name == "UNMANNED_SYSTEM_CONTROL_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new UASControlWidget(this),tr("Control"),"UNMANNED_SYSTEM_CONTROL_DOCKWIDGET",currentView,Qt::LeftDockWidgetArea);
    }
    else if (name == "UNMANNED_SYSTEM_LIST_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new UASListWidget(this),tr("Unmanned Systems"),"UNMANNED_SYSTEM_LIST_DOCKWIDGET",currentView,Qt::RightDockWidgetArea);
    }
    else if (name == "WAYPOINT_LIST_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new QGCWaypointListMulti(this),tr("Mission Plan"),"WAYPOINT_LIST_DOCKWIDGET",currentView,Qt::BottomDockWidgetArea);
    }
    else if (name == "MAVLINK_INSPECTOR_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new QGCMAVLinkInspector(MAVLinkProtocol::instance(),this),tr("MAVLink Inspector"),"MAVLINK_INSPECTOR_DOCKWIDGET",currentView,Qt::RightDockWidgetArea);
    }
    else if (name == "PARAMETER_INTERFACE_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new ParameterInterface(this),tr("Onboard Parameters"),"PARAMETER_INTERFACE_DOCKWIDGET",currentView,Qt::RightDockWidgetArea);
    }
    else if (name == "FILE_VIEW_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new QGCUASFileViewMulti(this),tr("Onboard Files"),"FILE_VIEW_DOCKWIDGET",currentView,Qt::RightDockWidgetArea);
    }
    else if (name == "UAS_STATUS_DETAILS_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new UASInfoWidget(this),tr("Status Details"),"UAS_STATUS_DETAILS_DOCKWIDGET",currentView,Qt::RightDockWidgetArea);
    }
    else if (name == "MAP_VIEW_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new QGCMapTool(this),tr("Map view"),"MAP_VIEW_DOCKWIDGET",currentView,Qt::RightDockWidgetArea);
    }
    else if (name == "COMMUNICATION_DEBUG_CONSOLE_DOCKWIDGET")
    {
        //This is now a permanently detached window.
    }
    else if (name == "HORIZONTAL_SITUATION_INDICATOR_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new HSIDisplay(this),tr("Horizontal Situation"),"HORIZONTAL_SITUATION_INDICATOR_DOCKWIDGET",currentView,Qt::BottomDockWidgetArea);
    }
    else if (name == "HEAD_DOWN_DISPLAY_1_DOCKWIDGET")
    {
        QStringList acceptList;
        acceptList.append("-3.3,ATTITUDE.roll,rad,+3.3,s");
        acceptList.append("-3.3,ATTITUDE.pitch,deg,+3.3,s");
        acceptList.append("-3.3,ATTITUDE.yaw,deg,+3.3,s");
        HDDisplay *hddisplay = new HDDisplay(acceptList,"Flight Display",this);
        hddisplay->addSource(mavlinkDecoder);
        createDockWidget(centerStack->currentWidget(),hddisplay,tr("Flight Display"),"HEAD_DOWN_DISPLAY_1_DOCKWIDGET",currentView,Qt::RightDockWidgetArea);
    }
    else if (name == "HEAD_DOWN_DISPLAY_2_DOCKWIDGET")
    {
        QStringList acceptList;
        acceptList.append("0,RAW_PRESSURE.pres_abs,hPa,65500");
        HDDisplay *hddisplay = new HDDisplay(acceptList,"Actuator Status",this);
        hddisplay->addSource(mavlinkDecoder);
        createDockWidget(centerStack->currentWidget(),hddisplay,tr("Actuator Status"),"HEAD_DOWN_DISPLAY_2_DOCKWIDGET",currentView,Qt::RightDockWidgetArea);
    }
    else if (name == "PRIMARY_FLIGHT_DISPLAY_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new PrimaryFlightDisplay(this),tr("Primary Flight Display"),"PRIMARY_FLIGHT_DISPLAY_DOCKWIDGET",currentView,Qt::RightDockWidgetArea);
    }
    else if (name == "HEAD_UP_DISPLAY_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new HUD(320,240,this),tr("Video Downlink"),"HEAD_UP_DISPLAY_DOCKWIDGET",currentView,Qt::RightDockWidgetArea);
    }
    else if (name == "UAS_INFO_QUICKVIEW_DOCKWIDGET")
    {
        createDockWidget(centerStack->currentWidget(),new UASQuickView(this),tr("Quick View"),"UAS_INFO_QUICKVIEW_DOCKWIDGET",currentView,Qt::LeftDockWidgetArea);
    }
    else
    {
        if (customWidgetNameToFilenameMap.contains(name))
        {
            loadCustomWidget(customWidgetNameToFilenameMap[name],currentView);
        }
        else
        {
            qDebug() << "Error loading window:" << name;
        }
    }
}

void MainWindow::addToCentralStackedWidget(QWidget* widget, VIEW_SECTIONS viewSection, const QString& title)
{
    Q_UNUSED(viewSection);
    Q_UNUSED(title);
    Q_ASSERT(widget->objectName().length() != 0);

    // Check if this widget already has been added
    if (centerStack->indexOf(widget) == -1)
    {
        centerStack->addWidget(widget);
    }
}


void MainWindow::showCentralWidget()
{
    QAction* act = qobject_cast<QAction *>(sender());
    QWidget* widget = act->data().value<QWidget *>();
    centerStack->setCurrentWidget(widget);
}

void MainWindow::showHILConfigurationWidget(UASInterface* uas)
{
    // Add simulation configuration widget
    UAS* mav = dynamic_cast<UAS*>(uas);

    if (mav && !hilDocks.contains(mav->getUASID()))
    {
        QGCHilConfiguration* hconf = new QGCHilConfiguration(mav, this);
        QString hilDockName = tr("HIL Config %1").arg(uas->getUASName());
        QString hilDockObjectName = QString("HIL_CONFIG_%1").arg(uas->getUASName().toUpper().replace(' ','_'));
        QDockWidget* hilDock = createDockWidget(simView, hconf,hilDockName, hilDockObjectName,VIEW_SIMULATION,Qt::LeftDockWidgetArea);
        hilDocks.insert(mav->getUASID(), hilDock);
    }
}

void MainWindow::closeEvent(QCloseEvent *event)
{
    // Disallow window close if there are active connections
    
    bool foundConnections = false;
    foreach(LinkInterface* link, LinkManager::instance()->getLinks()) {
        if (link->isConnected()) {
            foundConnections = true;
            break;
        }
    }
    
    if (foundConnections) {
        QGCMessageBox::StandardButton button = QGCMessageBox::warning(tr("QGroundControl close"),
                                                                      tr("There are still active connections to vehicles. Do you want to disconnect these before closing?"),
                                                                      QMessageBox::Yes | QMessageBox::Cancel,
                                                                      QMessageBox::Cancel);
        if (button == QMessageBox::Yes) {
            foreach(LinkInterface* link, LinkManager::instance()->getLinks()) {
                LinkManager::instance()->disconnectLink(link);
            }
        } else {
            event->ignore();
            return;
        }
    }

    // This will process any remaining flight log save dialogs
    qgcApp()->processEvents(QEventLoop::ExcludeUserInputEvents);

    // Should not be any active connections
    foreach(LinkInterface* link, LinkManager::instance()->getLinks()) {
        Q_UNUSED(link);
        Q_ASSERT(!link->isConnected());
    }

    storeViewState();
    storeSettings();
    UASManager::instance()->storeSettings();
    event->accept();
}

/**
 * Connect the signals and slots of the common window widgets
 */
void MainWindow::connectCommonWidgets()
{
    if (infoDockWidget && infoDockWidget->widget())
    {
        connect(MAVLinkProtocol::instance(), SIGNAL(receiveLossChanged(int, float)),
                infoDockWidget->widget(), SLOT(updateSendLoss(int, float)));
    }
}

void MainWindow::createCustomWidget()
{
    if (QGCToolWidget::instances()->isEmpty())
    {
        // This is the first widget
        ui.menuTools->addSeparator();
    }
    QString objectName;
    int customToolIndex = 0;
    //Find the next unique object name that we can use
    do {
        ++customToolIndex;
        objectName = QString("CUSTOM_TOOL_%1").arg(customToolIndex) + "DOCK";
    } while(QGCToolWidget::instances()->contains(objectName));

    QString title = tr("Custom Tool %1").arg(customToolIndex );

    QGCToolWidget* tool = new QGCToolWidget(objectName, title);
    createDockWidget(centerStack->currentWidget(),tool,title,objectName,currentView,Qt::BottomDockWidgetArea);

    QSettings settings;
    settings.beginGroup("QGC_MAINWINDOW");
    settings.setValue(QString("TOOL_PARENT_") + tool->objectName(),currentView);
    settings.endGroup();
}

void MainWindow::loadCustomWidget()
{
    QString widgetFileExtension(".qgw");
    QString fileName = QGCFileDialog::getOpenFileName(this, tr("Specify Widget File Name"), QStandardPaths::writableLocation(QStandardPaths::DesktopLocation), tr("QGroundControl Widget (*%1);;").arg(widgetFileExtension));
    if (fileName != "") loadCustomWidget(fileName);
}
void MainWindow::loadCustomWidget(const QString& fileName, int view)
{
    QGCToolWidget* tool = new QGCToolWidget("", "", this);
    if (tool->loadSettings(fileName, true))
    {
        qDebug() << "Loading custom tool:" << tool->getTitle() << tool->objectName();
        switch ((VIEW_SECTIONS)view)
        {
        case VIEW_ENGINEER:
            createDockWidget(engineeringView,tool,tool->getTitle(),tool->objectName()+"DOCK",(VIEW_SECTIONS)view,Qt::LeftDockWidgetArea);
            break;
        default: // Flight view is the default.
        case VIEW_FLIGHT:
            createDockWidget(pilotView,tool,tool->getTitle(),tool->objectName()+"DOCK",(VIEW_SECTIONS)view,Qt::LeftDockWidgetArea);
            break;
        case VIEW_SIMULATION:
            createDockWidget(simView,tool,tool->getTitle(),tool->objectName()+"DOCK",(VIEW_SECTIONS)view,Qt::LeftDockWidgetArea);
            break;
        case VIEW_MISSION:
            createDockWidget(plannerView,tool,tool->getTitle(),tool->objectName()+"DOCK",(VIEW_SECTIONS)view,Qt::LeftDockWidgetArea);
            break;
        }
    }
    else
    {
        return;
    }
}

void MainWindow::loadCustomWidget(const QString& fileName, bool singleinstance)
{
    QGCToolWidget* tool = new QGCToolWidget("", "", this);
    if (tool->loadSettings(fileName, true) || !singleinstance)
    {
        qDebug() << "Loading custom tool:" << tool->getTitle() << tool->objectName();
        QSettings settings;
        settings.beginGroup("QGC_MAINWINDOW");

        int view = settings.value(QString("TOOL_PARENT_") + tool->objectName(),-1).toInt();
        switch (view)
        {
        case VIEW_ENGINEER:
            createDockWidget(engineeringView,tool,tool->getTitle(),tool->objectName()+"DOCK",(VIEW_SECTIONS)view,Qt::LeftDockWidgetArea);
            break;
        default: // Flight view is the default.
        case VIEW_FLIGHT:
            createDockWidget(pilotView,tool,tool->getTitle(),tool->objectName()+"DOCK",(VIEW_SECTIONS)view,Qt::LeftDockWidgetArea);
            break;
        case VIEW_SIMULATION:
            createDockWidget(simView,tool,tool->getTitle(),tool->objectName()+"DOCK",(VIEW_SECTIONS)view,Qt::LeftDockWidgetArea);
            break;
        case VIEW_MISSION:
            createDockWidget(plannerView,tool,tool->getTitle(),tool->objectName()+"DOCK",(VIEW_SECTIONS)view,Qt::LeftDockWidgetArea);
            break;
        }


        settings.endGroup();
    }
    else
    {
        return;
    }
}

void MainWindow::loadCustomWidgetsFromDefaults(const QString& systemType, const QString& autopilotType)
{
    QString defaultsDir = qApp->applicationDirPath() + "/files/" + autopilotType.toLower() + "/widgets/";
    QString platformDir = qApp->applicationDirPath() + "/files/" + autopilotType.toLower() + "/" + systemType.toLower() + "/widgets/";

    QDir widgets(defaultsDir);
    QStringList files = widgets.entryList();
    QDir platformWidgets(platformDir);
    files.append(platformWidgets.entryList());

    if (files.count() == 0)
    {
        qDebug() << "No default custom widgets for system " << systemType << "autopilot" << autopilotType << " found";
        qDebug() << "Tried with path: " << defaultsDir;
    }

    // Load all custom widgets found in the AP folder
    for(int i = 0; i < files.count(); ++i)
    {
        QString file = files[i];
        if (file.endsWith(".qgw"))
        {
            // Will only be loaded if not already a custom widget with
            // the same name is present
            loadCustomWidget(defaultsDir+"/"+file, true);
        }
    }
}

void MainWindow::loadSettings()
{
    QSettings settings;

    customMode = static_cast<enum MainWindow::CUSTOM_MODE>(settings.value("QGC_CUSTOM_MODE", (unsigned int)MainWindow::CUSTOM_MODE_NONE).toInt());

    settings.beginGroup("QGC_MAINWINDOW");
    autoReconnect = settings.value("AUTO_RECONNECT", autoReconnect).toBool();
    lowPowerMode = settings.value("LOW_POWER_MODE", lowPowerMode).toBool();
    bool dockWidgetTitleBarEnabled = settings.value("DOCK_WIDGET_TITLEBARS",menuActionHelper->dockWidgetTitleBarsEnabled()).toBool();
    settings.endGroup();

    enableDockWidgetTitleBars(dockWidgetTitleBarEnabled);
}

void MainWindow::storeSettings()
{
    QSettings settings;

    settings.setValue("QGC_CUSTOM_MODE", (int)customMode);

    settings.beginGroup("QGC_MAINWINDOW");
    settings.setValue("AUTO_RECONNECT", autoReconnect);
    settings.setValue("LOW_POWER_MODE", lowPowerMode);
    settings.endGroup();

    settings.setValue(getWindowGeometryKey(), saveGeometry());

    // Save the last current view in any case
    settings.setValue("CURRENT_VIEW", currentView);

    // Save the current window state, but only if a system is connected (else no real number of widgets would be present))
    if (UASManager::instance()->getUASList().length() > 0) settings.setValue(getWindowStateKey(), saveState());

    // Save the current UAS view if a UAS is connected
    if (UASManager::instance()->getUASList().length() > 0) settings.setValue("CURRENT_VIEW_WITH_UAS_CONNECTED", currentView);

    // And save any custom weidgets
    QGCToolWidget::storeWidgetsToSettings(settings);
}

void MainWindow::configureWindowName()
{
    QList<QHostAddress> hostAddresses = QNetworkInterface::allAddresses();
    QString windowname = qApp->applicationName() + " " + qApp->applicationVersion();
    bool prevAddr = false;

    windowname.append(" (" + QHostInfo::localHostName() + ": ");

    for (int i = 0; i < hostAddresses.size(); i++)
    {
        // Exclude loopback IPv4 and all IPv6 addresses
        if (hostAddresses.at(i) != QHostAddress("127.0.0.1") && !hostAddresses.at(i).toString().contains(":"))
        {
            if(prevAddr) windowname.append("/");
            windowname.append(hostAddresses.at(i).toString());
            prevAddr = true;
        }
    }

    windowname.append(")");

    setWindowTitle(windowname);
}