qgraphicsvideoitem.h

Go to the documentation of this file.

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QGRAPHICSVIDEOITEM_H
#define QGRAPHICSVIDEOITEM_H
 
#include <QtWidgets/qgraphicsitem.h>
 
#include <QtMultimediaWidgets/qvideowidget.h>
 
#if QT_CONFIG(graphicsview)
 
QT_BEGIN_NAMESPACE
 
class QVideoFrameFormat;
class QGraphicsVideoItemPrivate;
class Q_MULTIMEDIAWIDGETS_EXPORT QGraphicsVideoItem : public QGraphicsObject
{
    Q_OBJECT
    Q_PROPERTY(Qt::AspectRatioMode aspectRatioMode READ aspectRatioMode WRITE setAspectRatioMode)
    Q_PROPERTY(QPointF offset READ offset WRITE setOffset)
    Q_PROPERTY(QSizeF size READ size WRITE setSize)
    Q_PROPERTY(QSizeF nativeSize READ nativeSize NOTIFY nativeSizeChanged)
    Q_PROPERTY(QVideoSink* videoSink READ videoSink CONSTANT)
public:
    explicit QGraphicsVideoItem(QGraphicsItem *parent = nullptr);
    ~QGraphicsVideoItem() override;
 
    Q_INVOKABLE QVideoSink *videoSink() const;
 
    Qt::AspectRatioMode aspectRatioMode() const;
    void setAspectRatioMode(Qt::AspectRatioMode mode);
 
    QPointF offset() const;
    void setOffset(const QPointF &offset);
 
    QSizeF size() const;
    void setSize(const QSizeF &size);
 
    QSizeF nativeSize() const;
 
    QRectF boundingRect() const override;
 
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override;
 
    enum { Type = 14 };
    int type() const override
    {
        // Enable the use of qgraphicsitem_cast with this item.
        return Type;
    }
 
Q_SIGNALS:
    void nativeSizeChanged(const QSizeF &size);
 
protected:
    void timerEvent(QTimerEvent *event) override;
    QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
 
    QGraphicsVideoItemPrivate *d_ptr;
 
private:
    Q_DECLARE_PRIVATE(QGraphicsVideoItem)
    Q_PRIVATE_SLOT(d_func(), void _q_present(const QVideoFrame &))
};
 
QT_END_NAMESPACE
 
#endif // QT_CONFIG(graphicsview)
 
#endif // QGRAPHICSVIDEOITEM_H