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Diffstat (limited to 'src/multimedia/mediaservices/base/qgraphicsvideoitem.cpp')
| -rw-r--r-- | src/multimedia/mediaservices/base/qgraphicsvideoitem.cpp | 442 |
1 files changed, 0 insertions, 442 deletions
diff --git a/src/multimedia/mediaservices/base/qgraphicsvideoitem.cpp b/src/multimedia/mediaservices/base/qgraphicsvideoitem.cpp deleted file mode 100644 index d80dec5..0000000 --- a/src/multimedia/mediaservices/base/qgraphicsvideoitem.cpp +++ /dev/null @@ -1,442 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtMediaservies module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, 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. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtMediaServices/qgraphicsvideoitem.h> - -#include <QtMediaServices/qmediaobject.h> -#include <QtMediaServices/qmediaservice.h> -#include <QtMediaServices/private/qpaintervideosurface_p.h> -#include <QtMediaServices/qvideooutputcontrol.h> -#include <QtMediaServices/qvideorenderercontrol.h> -#include <QtMultimedia/qvideosurfaceformat.h> - -#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1) -#include <QtOpenGL/qgl.h> -#endif - -#ifndef QT_NO_GRAPHICSVIEW - -QT_BEGIN_NAMESPACE - - -class QGraphicsVideoItemPrivate -{ -public: - QGraphicsVideoItemPrivate() - : q_ptr(0) - , surface(0) - , mediaObject(0) - , service(0) - , outputControl(0) - , rendererControl(0) - , aspectRatioMode(Qt::KeepAspectRatio) - , updatePaintDevice(true) - , rect(0.0, 0.0, 320, 240) - { - } - - QGraphicsVideoItem *q_ptr; - - QPainterVideoSurface *surface; - QMediaObject *mediaObject; - QMediaService *service; - QVideoOutputControl *outputControl; - 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_serviceDestroyed(); - void _q_mediaObjectDestroyed(); -}; - -void QGraphicsVideoItemPrivate::clearService() -{ - if (outputControl) { - outputControl->setOutput(QVideoOutputControl::NoOutput); - outputControl = 0; - } - if (rendererControl) { - surface->stop(); - rendererControl->setSurface(0); - 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()) { - boundingRect = QRectF(); - } 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_formatChanged(const QVideoSurfaceFormat &format) -{ - nativeSize = format.sizeHint(); - - updateRects(); - - emit q_ptr->nativeSizeChanged(nativeSize); -} - -void QGraphicsVideoItemPrivate::_q_serviceDestroyed() -{ - rendererControl = 0; - outputControl = 0; - service = 0; - - surface->stop(); -} - -void QGraphicsVideoItemPrivate::_q_mediaObjectDestroyed() -{ - mediaObject = 0; - - clearService(); -} - -/*! - \class QGraphicsVideoItem - \brief The QGraphicsVideoItem class provides a graphics item which display video produced by a QMediaObject. - - \since 4.7 - - \ingroup multimedia - - 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. - - \code - player = new QMediaPlayer(this); - - QGraphicsVideoItem *item = new QGraphicsVideoItem; - item->setMediaObject(player); - graphicsView->scence()->addItem(item); - graphicsView->show(); - - player->setMedia(video); - player->play(); - \endcode - - \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; - - connect(d_ptr->surface, SIGNAL(frameChanged()), this, SLOT(_q_present())); - connect(d_ptr->surface, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat)), - this, SLOT(_q_formatChanged(QVideoSurfaceFormat))); -} - -/*! - Destroys a video graphics item. -*/ -QGraphicsVideoItem::~QGraphicsVideoItem() -{ - if (d_ptr->outputControl) - d_ptr->outputControl->setOutput(QVideoOutputControl::NoOutput); - - if (d_ptr->rendererControl) - d_ptr->rendererControl->setSurface(0); - - delete d_ptr->surface; - delete d_ptr; -} - -/*! - \property QGraphicsVideoItem::mediaObject - \brief the media object which provides the video displayed by a graphics - item. -*/ - -QMediaObject *QGraphicsVideoItem::mediaObject() const -{ - return d_func()->mediaObject; -} - -void QGraphicsVideoItem::setMediaObject(QMediaObject *object) -{ - Q_D(QGraphicsVideoItem); - - if (object == d->mediaObject) - return; - - d->clearService(); - - if (d->mediaObject) { - disconnect(d->mediaObject, SIGNAL(destroyed()), this, SLOT(_q_mediaObjectDestroyed())); - d->mediaObject->unbind(this); - } - - d->mediaObject = object; - - if (d->mediaObject) { - d->mediaObject->bind(this); - - connect(d->mediaObject, SIGNAL(destroyed()), this, SLOT(_q_mediaObjectDestroyed())); - - d->service = d->mediaObject->service(); - - if (d->service) { - connect(d->service, SIGNAL(destroyed()), this, SLOT(_q_serviceDestroyed())); - - d->outputControl = qobject_cast<QVideoOutputControl *>( - d->service->control(QVideoOutputControl_iid)); - d->rendererControl = qobject_cast<QVideoRendererControl *>( - d->service->control(QVideoRendererControl_iid)); - - if (d->outputControl != 0 && d->rendererControl != 0) { - d->rendererControl->setSurface(d->surface); - - if (isVisible()) - d->outputControl->setOutput(QVideoOutputControl::RendererOutput); - } - } - } -} - -/*! - \property QGraphicsVideoItem::aspectRatioMode - \brief how a video is scaled to fit the graphics item's size. -*/ - -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. -*/ - -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. -*/ - -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. -*/ - -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. -*/ - -/*! - \reimp -*/ -QRectF QGraphicsVideoItem::boundingRect() const -{ - return d_func()->boundingRect; -} - -/*! - \reimp -*/ -void QGraphicsVideoItem::paint( - QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) -{ - Q_D(QGraphicsVideoItem); - - Q_UNUSED(option); - Q_UNUSED(widget); - - if (d->surface && d->surface->isActive()) { - d->surface->paint(painter, d->boundingRect, d->sourceRect); - d->surface->setReady(true); -#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1) - } else if (d->updatePaintDevice && (painter->paintEngine()->type() == QPaintEngine::OpenGL - || painter->paintEngine()->type() == QPaintEngine::OpenGL2)) { - d->updatePaintDevice = false; - - 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 - } -} - -/*! - \reimp - - \internal -*/ -QVariant QGraphicsVideoItem::itemChange(GraphicsItemChange change, const QVariant &value) -{ - return QGraphicsObject::itemChange(change, value); -} - -/*! - \reimp - - \internal -*/ -bool QGraphicsVideoItem::event(QEvent *event) -{ - return QGraphicsObject::event(event); -} - -/*! - \reimp - - \internal -*/ -bool QGraphicsVideoItem::sceneEvent(QEvent *event) -{ - return QGraphicsObject::sceneEvent(event); -} - -QT_END_NAMESPACE - -#endif // QT_NO_GRAPHICSVIEW - -#include "moc_qgraphicsvideoitem.cpp" |