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/****************************************************************************
 *
 *   (c) 2009-2018 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
 *
 * QGroundControl is licensed according to the terms in the file
 * COPYING.md in the root of the source code directory.
 *
 ****************************************************************************/


/**
 * @file
 *   @brief Definition of class MainWindow
 *   @author Lorenz Meier <mavteam@student.ethz.ch>
 *
 */

#pragma once
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#ifdef __mobile__
#error Should not be include in mobile build
#endif

#include <QStatusBar>
#include <QStackedWidget>
#include <QSettings>
#include <QList>

#include "LinkManager.h"
#include "LinkInterface.h"
#include "UASInterface.h"
#include "LogCompressor.h"
#include "QGCMAVLinkInspector.h"
#include "QGCMAVLinkLogPlayer.h"
#include "MAVLinkDecoder.h"
#include "Vehicle.h"
#include "QGCDockWidget.h"
#include "QGCQmlWidgetHolder.h"

#include "ui_MainWindow.h"

/**
 * @brief Main Application Window
 *
 **/
class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
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    /// @brief Returns the MainWindow singleton. Will not create the MainWindow if it has not already
    ///         been created.
    static MainWindow* instance(void);
    /// @brief Deletes the MainWindow singleton
    void deleteInstance(void);
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    /// @brief Creates the MainWindow singleton. Should only be called once by QGCApplication.
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    static MainWindow* _create();
    /** @brief Get low power mode setting */
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        return _lowPowerMode;
    /// @brief Saves the last used connection
    void saveLastUsedConnection(const QString connection);

    // Called from MainWindow.qml when the user accepts the window close dialog
    void _reallyClose(void);
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    /// @return Root qml object of main window QML
    QObject* rootQmlObject(void);

public slots:
    /** @brief Save power by reducing update rates */
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    void enableLowPowerMode(bool enabled) { _lowPowerMode = enabled; }

    void closeEvent(QCloseEvent* event);

    /** @brief Update the window name */
    void configureWindowName();

protected slots:
    /**
     * @brief Enable/Disable Status Bar
     */
    void showStatusBarCallback(bool checked);
    void initStatusChanged(const QString& message, int alignment, const QColor &color);
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    /** Emitted when any value changes from any source */
    void valueChanged(const int uasId, const QString& name, const QString& unit, const QVariant& value, const quint64 msec);
    void reallyClose(void);
    // Used for unit tests to know when the main window closes
    void mainWindowClosed(void);

public:
    QGCMAVLinkLogPlayer* getLogPlayer()
    {
        return logPlayer;
    }
protected:
    void connectCommonActions();

    void loadSettings();
    void storeSettings();

    QSettings settings;

    QGCMAVLinkLogPlayer* logPlayer;
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#ifdef QGC_MOUSE_ENABLED_WIN
    /** @brief 3d Mouse support (WIN only) */
    Mouse3DInput* mouseInput;               ///< 3dConnexion 3dMouse SDK
    Mouse6dofInput* mouse;                  ///< Implementation for 3dMouse input
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#endif // QGC_MOUSE_ENABLED_WIN

    /** User interface actions **/
    QAction* connectUASAct;
    QAction* disconnectUASAct;
    QAction* startUASAct;
    QAction* returnUASAct;
    QAction* stopUASAct;
    QAction* killUASAct;


    LogCompressor* comp;
    QTimer* videoTimer;
    QTimer windowNameUpdateTimer;
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private slots:
    void _closeWindow(void) { close(); }
    void _vehicleAdded(Vehicle* vehicle);
    void _showDockWidgetAction(bool show);
    void _showAdvancedUIChanged(bool advanced);
#ifdef UNITTEST_BUILD
    void _showQmlTestWidget(void);
#endif
    /// Constructor is private since all creation should be through MainWindow::_create
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    MainWindow();
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    void _openUrl(const QString& url, const QString& errorMessage);
    QMap<QString, QGCDockWidget*>   _mapName2DockWidget;
    QMap<QString, QAction*>         _mapName2Action;
    void _storeCurrentViewState(void);
    void _loadCurrentViewState(void);
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    bool _createInnerDockWidget(const QString& widgetName);
    void _buildCommonWidgets(void);
    void _hideAllDockWidgets(void);
    void _showDockWidget(const QString &name, bool show);
    void _loadVisibleWidgetsSettings(void);
    void _storeVisibleWidgetsSettings(void);
    MAVLinkDecoder* _mavLinkDecoderInstance(void);
    MAVLinkDecoder*         _mavlinkDecoder;
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    bool                    _lowPowerMode;           ///< If enabled, QGC reduces the update rates of all widgets
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    QVBoxLayout*            _centralLayout;
    Ui::MainWindow          _ui;
    QGCQmlWidgetHolder*     _mainQmlWidgetHolder;

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    QString _getWindowGeometryKey();