/****************************************************************************
**
** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
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** information use the contact form at http://www.qt.io/contact-us.
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
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** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QT3DQUICKWINDOW_H
#define QT3DQUICKWINDOW_H

#include <QQuickWindow>
#include <QtCore/qpointer.h>
#include <QUrl>

QT_BEGIN_NAMESPACE

namespace Qt3DCore {
class QAbstractAspect;
namespace Quick {
class QQmlAspectEngine;
}
}

namespace Qt3DRender {
class QRenderAspect;
class QCamera;
}

namespace Qt3DInput {
class QInputAspect;
}

namespace Qt3DLogic {
class QLogicAspect;
}

class Qt3DQuickWindow : public QQuickWindow
{
    Q_OBJECT
    Q_PROPERTY(CameraAspectRatioMode cameraAspectRatioMode READ cameraAspectRatioMode WRITE setCameraAspectRatioMode NOTIFY cameraAspectRatioModeChanged)

public:
    Qt3DQuickWindow(QWindow *parent = Q_NULLPTR);
    ~Qt3DQuickWindow();

    void registerAspect(Qt3DCore::QAbstractAspect *aspect);
    void registerAspect(const QString &name);

    void setSource(const QUrl &source);
    Qt3DCore::Quick::QQmlAspectEngine *engine() const;

    enum CameraAspectRatioMode {
        AutomaticAspectRatio,
        UserAspectRatio
    };
    Q_ENUM(CameraAspectRatioMode);

    void setCameraAspectRatioMode(CameraAspectRatioMode mode);
    CameraAspectRatioMode cameraAspectRatioMode() const;

Q_SIGNALS:
    void cameraAspectRatioModeChanged(CameraAspectRatioMode mode);

protected:
    void showEvent(QShowEvent *e) Q_DECL_OVERRIDE;

private:
    void onSceneCreated(QObject *rootObject);
    void setWindowSurface(QObject *rootObject);
    void setCameraAspectModeHelper();
    void updateCameraAspectRatio();

    QScopedPointer<Qt3DCore::Quick::QQmlAspectEngine> m_engine;

    // Aspects
    Qt3DRender::QRenderAspect *m_renderAspect;
    Qt3DInput::QInputAspect *m_inputAspect;
    Qt3DLogic::QLogicAspect *m_logicAspect;

    QUrl m_source;
    bool m_initialized;
    QPointer<Qt3DRender::QCamera> m_camera;
    CameraAspectRatioMode m_cameraAspectRatioMode;
};

QT_END_NAMESPACE

#endif // QT3DQUICKWINDOW_H