The QGraphicsVideoItem class provides a graphics item which display video produced by a QMediaObject. More...
| Header: | #include <QGraphicsVideoItem> |
| qmake: | QT += multimediawidgets |
| Inherits: | QGraphicsObject and QMediaBindableInterface |
|
| QGraphicsVideoItem(QGraphicsItem *parent = nullptr) | |
| virtual | ~QGraphicsVideoItem() |
| Qt::AspectRatioMode | aspectRatioMode() const |
| QSizeF | nativeSize() const |
| QPointF | offset() const |
| void | setAspectRatioMode(Qt::AspectRatioMode mode) |
| void | setOffset(const QPointF &offset) |
| void | setSize(const QSizeF &size) |
| QSizeF | size() const |
| virtual QRectF | boundingRect() const override |
| virtual QMediaObject * | mediaObject() const override |
| virtual void | paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override |
| void | nativeSizeChanged(const QSizeF &size) |
The QGraphicsVideoItem class provides a graphics item which display video produced by a QMediaObject.
Attaching a QGraphicsVideoItem to a QMediaObject allows it to display the video or image output of that media object. A QGraphicsVideoItem is attached to a media object by passing a pointer to the QMediaObject to the setMediaObject() function.
player = new QMediaPlayer(this); QGraphicsVideoItem *item = new QGraphicsVideoItem; player->setVideoOutput(item); graphicsView->scene()->addItem(item); graphicsView->show(); player->setMedia(QUrl("http://example.com/myclip4.ogv")); player->play();
Note: Only a single display output can be attached to a media object at one time.
See also QMediaObject, QMediaPlayer, and QVideoWidget.
how a video is scaled to fit the graphics item's size.
Access functions:
| Qt::AspectRatioMode | aspectRatioMode() const |
| void | setAspectRatioMode(Qt::AspectRatioMode mode) |
This property holds the media object which provides the video displayed by a graphics item.
Access functions:
| virtual QMediaObject * | mediaObject() const override |
This property holds the native size of the video.
Access functions:
| QSizeF | nativeSize() const |
Notifier signal:
| void | nativeSizeChanged(const QSizeF &size) |
This property holds the video item's offset.
QGraphicsVideoItem will draw video using the offset for its top left corner.
Access functions:
| QPointF | offset() const |
| void | setOffset(const QPointF &offset) |
This property holds the video item's size.
QGraphicsVideoItem will draw video scaled to fit size according to its fillMode.
Access functions:
| QSizeF | size() const |
| void | setSize(const QSizeF &size) |
Constructs a graphics item that displays video.
The parent is passed to QGraphicsItem.
[virtual] QGraphicsVideoItem::~QGraphicsVideoItem()Destroys a video graphics item.
[override virtual] QRectF QGraphicsVideoItem::boundingRect() constReimplemented from QGraphicsItem::boundingRect().
[signal] void QGraphicsVideoItem::nativeSizeChanged(const
QSizeF &size)Signals that the native size of the video has changed.
Note: Notifier signal for property nativeSize.
[override virtual] void QGraphicsVideoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr)Reimplemented from QGraphicsItem::paint().
