////  MainWindow.h//  interface////  Created by Mohammed Nafees on 04/06/2014.//  Copyright (c) 2014 High Fidelity, Inc. All rights reserved.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #ifndef __hifi__MainWindow__#define __hifi__MainWindow__ #include <QMainWindow> #include <SettingHandle.h> class DockWidget;class MainWindow : public QMainWindow {    Q_OBJECTpublic:    explicit MainWindow(QWidget* parent = NULL);    ~MainWindow();     static QWindow* findMainWindow();     // This offset is used for positioning children window relative to the main window.    void setDockedWidgetRelativePositionOffset(const QSize& newOffset) { _dockedWidgetRelativePositionOffset.setWidth(newOffset.width()); _dockedWidgetRelativePositionOffset.setHeight(newOffset.height()); }    QSize getDockedWidgetRelativePositionOffset() { return _dockedWidgetRelativePositionOffset; }public slots:    void restoreGeometry();    void saveGeometry(); signals:    void windowGeometryChanged(QRect geometry);    void windowShown(bool shown);    void windowMinimizedChanged(bool minimized); protected:    virtual void closeEvent(QCloseEvent* event) override;    virtual void moveEvent(QMoveEvent* event) override;    virtual void resizeEvent(QResizeEvent* event) override;    virtual void showEvent(QShowEvent* event) override;    virtual void hideEvent(QHideEvent* event) override;    virtual void changeEvent(QEvent* event) override;    virtual void dragEnterEvent(QDragEnterEvent *e) override;    virtual void dropEvent(QDropEvent *e) override; private:    Setting::Handle<QRect> _windowGeometry;    Setting::Handle<int> _windowState;    QSize _dockedWidgetRelativePositionOffset{ 0, 0 };}; #endif /* defined(__hifi__MainWindow__) */