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

QGroundControl Open Source Ground Control Station

(c) 2009, 2010 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 Definition of class MainWindow
 *   @author Lorenz Meier <mavteam@student.ethz.ch>
 *
 */

#ifndef _MAINWINDOW_H_
#define _MAINWINDOW_H_
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#include <QMainWindow>
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#include <QStatusBar>
#include <QStackedWidget>
#include <QSettings>
#include <qlist.h>

#include "ui_MainWindow.h"
#include "LinkManager.h"
#include "LinkInterface.h"
#include "UASInterface.h"
#include "CameraView.h"
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#if (defined QGC_MOUSE_ENABLED_WIN) | (defined QGC_MOUSE_ENABLED_LINUX)
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#include "Mouse6dofInput.h"
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#endif // QGC_MOUSE_ENABLED_WIN
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#include "MainToolBar.h"
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#include "LogCompressor.h"

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#include "FlightDisplayView.h"
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#include "QGCMAVLinkInspector.h"
#include "QGCMAVLinkLogPlayer.h"
#include "MAVLinkDecoder.h"
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#include "QGCUASFileViewMulti.h"
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#include "Vehicle.h"
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class QGCFirmwareUpdate;
class QSplashScreen;
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class QGCStatusBar;
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class Linecharts;
class QGCDataPlot2D;
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class QGCUASFileViewMulti;
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/**
 * @brief Main Application Window
 *
 **/
class MainWindow : public QMainWindow
{
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    friend class MainToolBar;
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    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);
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    /// @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(QSplashScreen* splashScreen);
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    /// @brief Called to indicate that splash screen is no longer being displayed.
    void splashScreenFinished(void) { _splashScreen = NULL; }
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    ~MainWindow();

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    /** @brief Get auto link reconnect setting */
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    bool autoReconnectEnabled() const
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    {
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        return _autoReconnect;
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    }

    /** @brief Get low power mode setting */
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    bool lowPowerModeEnabled() const
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    {
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        return _lowPowerMode;
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    }

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    void hideSplashScreen(void);
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    /// @brief Saves the last used connection
    void saveLastUsedConnection(const QString connection);

    /// @brief Restore (and connects) the last used connection (if any)
    void restoreLastUsedConnection();
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    /// @brief Gets a pointer to the Main Tool Bar
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    MainToolBar* getMainToolBar(void) { return _mainToolBar; }
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    /// @brief Gets a pointer to the Main Flight Display
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    FlightDisplayView* getFlightDisplay() { return dynamic_cast<FlightDisplayView*>(_flightView.data()); }
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    QWidget* getCurrentViewWidget(void) { return _currentViewWidget; }
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public slots:
    /** @brief Show the application settings */
    void showSettings();

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    void loadSetupView();
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    void loadFlightView();
    void loadAnalyzeView();
    void loadPlanView();
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    void manageLinks();
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    /** @brief Show the online help for users */
    void showHelp();
    /** @brief Show the authors / credits */
    void showCredits();
    /** @brief Show the project roadmap */
    void showRoadMap();

    /** @brief Automatically reconnect last link */
    void enableAutoReconnect(bool enabled);
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    /** @brief Save power by reducing update rates */
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    void enableLowPowerMode(bool enabled) { _lowPowerMode = enabled; }
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    void closeEvent(QCloseEvent* event);

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

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    void commsWidgetDestroyed(QObject *obj);
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protected slots:
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    /**
     * @brief Unchecks the normalActionItem.
     * Used as a triggered() callback by the fullScreenAction to make sure only one of it or the
     * normalAction are checked at a time, as they're mutually exclusive.
     */
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    void fullScreenActionItemCallback(bool);
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    /**
     * @brief Unchecks the fullScreenActionItem.
     * Used as a triggered() callback by the normalAction to make sure only one of it or the
     * fullScreenAction are checked at a time, as they're mutually exclusive.
     */
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    void normalActionItemCallback(bool);
    /**
     * @brief Enable/Disable Status Bar
     */
    void showStatusBarCallback(bool checked);
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signals:
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    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);
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    /** Emitted when any the Canvas elements within QML wudgets need updating */
    void repaintCanvas();
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#ifdef QGC_MOUSE_ENABLED_LINUX
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    /** @brief Forward X11Event to catch 3DMouse inputs */
    void x11EventOccured(XEvent *event);
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#endif //QGC_MOUSE_ENABLED_LINUX
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public:
    QGCMAVLinkLogPlayer* getLogPlayer()
    {
        return logPlayer;
    }

protected:

    typedef enum _VIEW_SECTIONS
    {
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        VIEW_ANALYZE,           // Engineering/Analyze view mode. Used for analyzing data and modifying onboard parameters
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        VIEW_UNUSED3,           // Unused (don't remove, or it will screw up saved settigns indices)
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        VIEW_FLIGHT,            // Flight/Fly/Operate view mode. Used for 1st-person observation of the vehicle.
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        VIEW_UNUSED4,           // Unused (don't remove, or it will screw up saved settigns indices)
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        VIEW_SETUP,             // Setup view. Used for initializing the system for operation.
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        VIEW_UNUSED1,           // Unused (don't remove, or it will screw up saved settigns indices)
        VIEW_UNUSED2,           // Unused (don't remove, or it will screw up saved settigns indices)
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        VIEW_MISSIONEDITOR,     // New mission editor
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    } VIEW_SECTIONS;

    /** @brief Catch window resize events */
    void resizeEvent(QResizeEvent * event);

    void connectCommonActions();

    void loadSettings();
    void storeSettings();


    QSettings settings;

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    // Center widgets
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    QPointer<Linecharts> linechartWidget;
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    QPointer<MainToolBar> _mainToolBar;
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    QPointer<MAVLinkDecoder> mavlinkDecoder;
    QGCMAVLinkLogPlayer* logPlayer;

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#ifdef QGC_MOUSE_ENABLED_WIN
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    /** @brief 3d Mouse support (WIN only) */
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    Mouse3DInput* mouseInput;               ///< 3dConnexion 3dMouse SDK
    Mouse6dofInput* mouse;                  ///< Implementation for 3dMouse input
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#endif // QGC_MOUSE_ENABLED_WIN
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#ifdef QGC_MOUSE_ENABLED_LINUX
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    /** @brief Reimplementation of X11Event to handle 3dMouse Events (magellan) */
    bool x11Event(XEvent *event);
    Mouse6dofInput* mouse;                  ///< Implementation for 3dMouse input
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#endif // QGC_MOUSE_ENABLED_LINUX
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    /** 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:
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    void _linkStateChange(LinkInterface*);
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	void _closeWindow(void) { close(); }
    void _vehicleAdded(Vehicle* vehicle);
    
#ifndef __mobile__
    void _showDockWidgetAction(bool show);
#endif
    
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#ifdef UNITTEST_BUILD
    void _showQmlTestWidget(void);
#endif
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private:
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    /// Constructor is private since all creation should be through MainWindow::_create
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    MainWindow(QSplashScreen* splashScreen);
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    void _openUrl(const QString& url, const QString& errorMessage);
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    // Center widgets
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    QPointer<QWidget> _planView;
    QPointer<QWidget> _flightView;
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    QPointer<QWidget> _setupView;
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    QPointer<QWidget> _analyzeView;
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    QPointer<QWidget> _missionEditorView;
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#ifndef __mobile__
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    // Dock widget names
    static const char* _mavlinkDockWidgetName;
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    static const char* _customCommandWidgetName;
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    static const char* _filesDockWidgetName;
    static const char* _uasStatusDetailsDockWidgetName;
    static const char* _mapViewDockWidgetName;
    static const char* _pfdDockWidgetName;
    static const char* _uasInfoViewDockWidgetName;
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    static const char* _hilDockWidgetName;
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    QMap<QString, QDockWidget*>     _mapName2DockWidget;
    QMap<QDockWidget*, QAction*>    _mapDockWidget2Action;
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#endif
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    void _buildPlanView(void);
    void _buildFlightView(void);
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    void _buildSetupView(void);
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    void _buildAnalyzeView(void);
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    void _buildTerminalView(void);
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    void _buildMissionEditorView(void);
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    void _storeCurrentViewState(void);
    void _loadCurrentViewState(void);
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#ifndef __mobile__
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    void _createDockWidget(const QString& title, const QString& name, Qt::DockWidgetArea area, QWidget* innerWidget);
    void _createInnerDockWidget(const QString& widgetName);
    void _buildCommonWidgets(void);
    void _hideAllDockWidgets(void);
    void _showDockWidget(const QString &name, bool show);
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#endif
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    bool                    _autoReconnect;
    bool                    _lowPowerMode;           ///< If enabled, QGC reduces the update rates of all widgets
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    bool                    _showStatusBar;
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    QActionGroup*           _centerStackActionGroup;
    QVBoxLayout*            _centralLayout;
    QList<QObject*>         _commsWidgetList;
    QWidget*                _currentViewWidget;     ///< Currently displayed view widget
    QSplashScreen*          _splashScreen;          ///< Splash screen, NULL is splash screen not currently being shown
    VIEW_SECTIONS           _currentView;           ///< Currently displayed view
    Ui::MainWindow          _ui;
    QString                 _screenFileName;
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    QString _getWindowStateKey();
    QString _getWindowGeometryKey();
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};

#endif /* _MAINWINDOW_H_ */