////  HMDToolsDialog.h//  interface/src/ui////  Created by Brad Hefta-Gaub on 7/19/13.//  Copyright 2013 High Fidelity, Inc.////  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_HMDToolsDialog_h#define hifi_HMDToolsDialog_h #include <QDialog> class HMDWindowWatcher;class QLabel; class HMDToolsDialog : public QDialog {    Q_OBJECTpublic:    // Sets up the UI    HMDToolsDialog(QWidget* parent);    ~HMDToolsDialog();     QString getDebugDetails() const;    QScreen* getHMDScreen() const { return _hmdScreen; }    QScreen* getLastApplicationScreen() const { return _previousScreen; }    bool hasHMDScreen() const { return _hmdScreenNumber >= -1; }    void watchWindow(QWindow* window); signals:    void closed(); public slots:    void reject() override;    void screenCountChanged(); protected:    virtual void closeEvent(QCloseEvent*) override; // Emits a 'closed' signal when this dialog is closed.    virtual void showEvent(QShowEvent* event) override;    virtual void hideEvent(QHideEvent* event) override; private:    void centerCursorOnWidget(QWidget* widget);    void enterHMDMode();    void leaveHMDMode();    void toggleHMDMode();    void updateUi();     QScreen* _previousScreen{ nullptr };    QScreen* _hmdScreen{ nullptr };    int _hmdScreenNumber{ -1 };    QPushButton* _switchModeButton{ nullptr };    QLabel* _debugDetails{ nullptr };     QRect _previousDialogRect;    QScreen* _previousDialogScreen{ nullptr };    QString _hmdPluginName;    QString _defaultPluginName;     QHash<QWindow*, HMDWindowWatcher*> _windowWatchers;    friend class HMDWindowWatcher;};  class HMDWindowWatcher : public QObject {    Q_OBJECTpublic:    // Sets up the UI    HMDWindowWatcher(QWindow* window, HMDToolsDialog* hmdTools);    ~HMDWindowWatcher(); public slots:    void windowScreenChanged(QScreen* screen);    void windowGeometryChanged(int arg); private:    QWindow* _window;    HMDToolsDialog* _hmdTools;    QRect _previousRect;    QScreen* _previousScreen;}; #endif // hifi_HMDToolsDialog_h