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Diffstat (limited to 'src/multimediawidgets/qgraphicsvideoitem.cpp')
| -rw-r--r-- | src/multimediawidgets/qgraphicsvideoitem.cpp | 431 |
1 files changed, 0 insertions, 431 deletions
diff --git a/src/multimediawidgets/qgraphicsvideoitem.cpp b/src/multimediawidgets/qgraphicsvideoitem.cpp deleted file mode 100644 index c92fb1e..0000000 --- a/src/multimediawidgets/qgraphicsvideoitem.cpp +++ /dev/null @@ -1,431 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 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 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qgraphicsvideoitem.h" -#include "qpaintervideosurface_p.h" - -#include <qmediaobject.h> -#include <qmediaservice.h> -#include <qvideorenderercontrol.h> -#include <qvideosurfaceformat.h> - -#include <QtCore/qcoreevent.h> -#include <QtCore/qpointer.h> - -#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1) -#include <QtOpenGL/qgl.h> -#endif - -Q_DECLARE_METATYPE(QVideoSurfaceFormat) - -QT_BEGIN_NAMESPACE - -class QGraphicsVideoItemPrivate -{ -public: - QGraphicsVideoItemPrivate() - : q_ptr(0) - , surface(0) - , mediaObject(0) - , service(0) - , rendererControl(0) - , aspectRatioMode(Qt::KeepAspectRatio) - , updatePaintDevice(true) - , rect(0.0, 0.0, 320, 240) - { - } - - QGraphicsVideoItem *q_ptr; - - QPainterVideoSurface *surface; - QPointer<QMediaObject> mediaObject; - QMediaService *service; - QVideoRendererControl *rendererControl; - Qt::AspectRatioMode aspectRatioMode; - bool updatePaintDevice; - QRectF rect; - QRectF boundingRect; - QRectF sourceRect; - QSizeF nativeSize; - - void clearService(); - void updateRects(); - - void _q_present(); - void _q_formatChanged(const QVideoSurfaceFormat &format); - void _q_updateNativeSize(); - void _q_serviceDestroyed(); -}; - -void QGraphicsVideoItemPrivate::clearService() -{ - if (rendererControl) { - surface->stop(); - rendererControl->setSurface(0); - service->releaseControl(rendererControl); - rendererControl = 0; - } - if (service) { - QObject::disconnect(service, SIGNAL(destroyed()), q_ptr, SLOT(_q_serviceDestroyed())); - service = 0; - } -} - -void QGraphicsVideoItemPrivate::updateRects() -{ - q_ptr->prepareGeometryChange(); - - if (nativeSize.isEmpty()) { - //this is necessary for item to receive the - //first paint event and configure video surface. - boundingRect = rect; - } else if (aspectRatioMode == Qt::IgnoreAspectRatio) { - boundingRect = rect; - sourceRect = QRectF(0, 0, 1, 1); - } else if (aspectRatioMode == Qt::KeepAspectRatio) { - QSizeF size = nativeSize; - size.scale(rect.size(), Qt::KeepAspectRatio); - - boundingRect = QRectF(0, 0, size.width(), size.height()); - boundingRect.moveCenter(rect.center()); - - sourceRect = QRectF(0, 0, 1, 1); - } else if (aspectRatioMode == Qt::KeepAspectRatioByExpanding) { - boundingRect = rect; - - QSizeF size = rect.size(); - size.scale(nativeSize, Qt::KeepAspectRatio); - - sourceRect = QRectF( - 0, 0, size.width() / nativeSize.width(), size.height() / nativeSize.height()); - sourceRect.moveCenter(QPointF(0.5, 0.5)); - } -} - -void QGraphicsVideoItemPrivate::_q_present() -{ - if (q_ptr->isObscured()) { - q_ptr->update(boundingRect); - surface->setReady(true); - } else { - q_ptr->update(boundingRect); - } -} - -void QGraphicsVideoItemPrivate::_q_updateNativeSize() -{ - const QSize &size = surface->surfaceFormat().sizeHint(); - if (nativeSize != size) { - nativeSize = size; - - updateRects(); - emit q_ptr->nativeSizeChanged(nativeSize); - } -} - -void QGraphicsVideoItemPrivate::_q_serviceDestroyed() -{ - rendererControl = 0; - service = 0; - - surface->stop(); -} - - -/*! - \class QGraphicsVideoItem - - \brief The QGraphicsVideoItem class provides a graphics item which display video produced by a QMediaObject. - - \inmodule QtMultimedia - \ingroup multimedia - \since 1.0 - - 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. - - \snippet doc/src/snippets/multimedia-snippets/video.cpp Video graphics item - - \bold {Note}: Only a single display output can be attached to a media - object at one time. - - \sa QMediaObject, QMediaPlayer, QVideoWidget -*/ - -/*! - Constructs a graphics item that displays video. - - The \a parent is passed to QGraphicsItem. -*/ -QGraphicsVideoItem::QGraphicsVideoItem(QGraphicsItem *parent) - : QGraphicsObject(parent) - , d_ptr(new QGraphicsVideoItemPrivate) -{ - d_ptr->q_ptr = this; - d_ptr->surface = new QPainterVideoSurface; - - qRegisterMetaType<QVideoSurfaceFormat>(); - - connect(d_ptr->surface, SIGNAL(frameChanged()), this, SLOT(_q_present())); - connect(d_ptr->surface, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat)), - this, SLOT(_q_updateNativeSize()), Qt::QueuedConnection); -} - -/*! - Destroys a video graphics item. -*/ -QGraphicsVideoItem::~QGraphicsVideoItem() -{ - if (d_ptr->rendererControl) { - d_ptr->rendererControl->setSurface(0); - d_ptr->service->releaseControl(d_ptr->rendererControl); - } - - delete d_ptr->surface; - delete d_ptr; -} - -/*! - \property QGraphicsVideoItem::mediaObject - \brief the media object which provides the video displayed by a graphics - item. - \since 1.0 -*/ - -QMediaObject *QGraphicsVideoItem::mediaObject() const -{ - return d_func()->mediaObject; -} - -/*! - \internal - \since 1.0 -*/ -bool QGraphicsVideoItem::setMediaObject(QMediaObject *object) -{ - Q_D(QGraphicsVideoItem); - - if (object == d->mediaObject) - return true; - - d->clearService(); - - d->mediaObject = object; - - if (d->mediaObject) { - d->service = d->mediaObject->service(); - - if (d->service) { - QMediaControl *control = d->service->requestControl(QVideoRendererControl_iid); - if (control) { - d->rendererControl = qobject_cast<QVideoRendererControl *>(control); - - if (d->rendererControl) { - //don't set the surface untill the item is painted - //at least once and the surface is configured - if (!d->updatePaintDevice) - d->rendererControl->setSurface(d->surface); - else - update(boundingRect()); - - connect(d->service, SIGNAL(destroyed()), this, SLOT(_q_serviceDestroyed())); - - return true; - } - if (control) - d->service->releaseControl(control); - } - } - } - - d->mediaObject = 0; - return false; -} - -/*! - \property QGraphicsVideoItem::aspectRatioMode - \brief how a video is scaled to fit the graphics item's size. - \since 1.0 -*/ - -Qt::AspectRatioMode QGraphicsVideoItem::aspectRatioMode() const -{ - return d_func()->aspectRatioMode; -} - -void QGraphicsVideoItem::setAspectRatioMode(Qt::AspectRatioMode mode) -{ - Q_D(QGraphicsVideoItem); - - d->aspectRatioMode = mode; - d->updateRects(); -} - -/*! - \property QGraphicsVideoItem::offset - \brief the video item's offset. - - QGraphicsVideoItem will draw video using the offset for its top left - corner. - \since 1.0 -*/ - -QPointF QGraphicsVideoItem::offset() const -{ - return d_func()->rect.topLeft(); -} - -void QGraphicsVideoItem::setOffset(const QPointF &offset) -{ - Q_D(QGraphicsVideoItem); - - d->rect.moveTo(offset); - d->updateRects(); -} - -/*! - \property QGraphicsVideoItem::size - \brief the video item's size. - - QGraphicsVideoItem will draw video scaled to fit size according to its - fillMode. - \since 1.0 -*/ - -QSizeF QGraphicsVideoItem::size() const -{ - return d_func()->rect.size(); -} - -void QGraphicsVideoItem::setSize(const QSizeF &size) -{ - Q_D(QGraphicsVideoItem); - - d->rect.setSize(size.isValid() ? size : QSizeF(0, 0)); - d->updateRects(); -} - -/*! - \property QGraphicsVideoItem::nativeSize - \brief the native size of the video. - \since 1.0 -*/ - -QSizeF QGraphicsVideoItem::nativeSize() const -{ - return d_func()->nativeSize; -} - -/*! - \fn QGraphicsVideoItem::nativeSizeChanged(const QSizeF &size) - - Signals that the native \a size of the video has changed. - \since 1.0 -*/ - -/*! - \reimp - \since 1.0 -*/ -QRectF QGraphicsVideoItem::boundingRect() const -{ - return d_func()->boundingRect; -} - -/*! - \reimp - \since 1.0 -*/ -void QGraphicsVideoItem::paint( - QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) -{ - Q_D(QGraphicsVideoItem); - - Q_UNUSED(option); - Q_UNUSED(widget); - - if (d->surface && d->updatePaintDevice) { - d->updatePaintDevice = false; -#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1) - if (widget) - connect(widget, SIGNAL(destroyed()), d->surface, SLOT(viewportDestroyed())); - - d->surface->setGLContext(const_cast<QGLContext *>(QGLContext::currentContext())); - if (d->surface->supportedShaderTypes() & QPainterVideoSurface::GlslShader) { - d->surface->setShaderType(QPainterVideoSurface::GlslShader); - } else { - d->surface->setShaderType(QPainterVideoSurface::FragmentProgramShader); - } -#endif - if (d->rendererControl && d->rendererControl->surface() != d->surface) - d->rendererControl->setSurface(d->surface); - } - - if (d->surface && d->surface->isActive()) { - d->surface->paint(painter, d->boundingRect, d->sourceRect); - d->surface->setReady(true); - } -} - -/*! - \reimp - - \internal - \since 1.0 -*/ -QVariant QGraphicsVideoItem::itemChange(GraphicsItemChange change, const QVariant &value) -{ - return QGraphicsItem::itemChange(change, value); -} - -/*! - \internal - \since 1.0 -*/ -void QGraphicsVideoItem::timerEvent(QTimerEvent *event) -{ - QGraphicsObject::timerEvent(event); -} - -#include "moc_qgraphicsvideoitem.cpp" -QT_END_NAMESPACE |