diff options
author | Michael Goddard <michael.goddard@nokia.com> | 2011-10-06 14:31:58 +1000 |
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committer | Qt by Nokia <qt-info@nokia.com> | 2011-10-07 06:16:34 +0200 |
commit | 03f22bcdaf1f80083618856d6e4140d3062f175b (patch) | |
tree | fdfbf0895f4fbd91fb1f4a247cf09e28a1056096 /src/multimediawidgets/qvideowidget.cpp | |
parent | 55bc4f2b46b0099d187db16e049d760cd55626e6 (diff) |
Rename QtMultimediaKit to QtMultimedia.
There are a few legacy bits left in place so it passes CI, and
then qt5.git etc can be updated.
Change-Id: I6b082e50e6958c72fdabc2974992e16d90dafa3a
Reviewed-on: http://codereview.qt-project.org/5368
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>
Diffstat (limited to 'src/multimediawidgets/qvideowidget.cpp')
-rw-r--r-- | src/multimediawidgets/qvideowidget.cpp | 1043 |
1 files changed, 1043 insertions, 0 deletions
diff --git a/src/multimediawidgets/qvideowidget.cpp b/src/multimediawidgets/qvideowidget.cpp new file mode 100644 index 000000000..f31144cb0 --- /dev/null +++ b/src/multimediawidgets/qvideowidget.cpp @@ -0,0 +1,1043 @@ +/**************************************************************************** +** +** 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 "qvideowidget_p.h" + +#include <qmediaobject.h> +#include <qmediaservice.h> +#include <qvideowindowcontrol.h> +#include <qvideowidgetcontrol.h> + +#include <qpaintervideosurface_p.h> +#include <qvideorenderercontrol.h> +#include <qvideosurfaceformat.h> +#include <qpainter.h> + +#include <qapplication.h> +#include <qevent.h> +#include <qdialog.h> +#include <qboxlayout.h> +#include <qnamespace.h> + +using namespace Qt; + +QT_BEGIN_NAMESPACE + +QVideoWidgetControlBackend::QVideoWidgetControlBackend( + QMediaService *service, QVideoWidgetControl *control, QWidget *widget) + : m_service(service) + , m_widgetControl(control) +{ + connect(control, SIGNAL(brightnessChanged(int)), widget, SLOT(_q_brightnessChanged(int))); + connect(control, SIGNAL(contrastChanged(int)), widget, SLOT(_q_contrastChanged(int))); + connect(control, SIGNAL(hueChanged(int)), widget, SLOT(_q_hueChanged(int))); + connect(control, SIGNAL(saturationChanged(int)), widget, SLOT(_q_saturationChanged(int))); + connect(control, SIGNAL(fullScreenChanged(bool)), widget, SLOT(_q_fullScreenChanged(bool))); + + QBoxLayout *layout = new QVBoxLayout; + layout->setMargin(0); + layout->setSpacing(0); + + layout->addWidget(control->videoWidget()); + + widget->setLayout(layout); +} + +void QVideoWidgetControlBackend::releaseControl() +{ + m_service->releaseControl(m_widgetControl); +} + +void QVideoWidgetControlBackend::setBrightness(int brightness) +{ + m_widgetControl->setBrightness(brightness); +} + +void QVideoWidgetControlBackend::setContrast(int contrast) +{ + m_widgetControl->setContrast(contrast); +} + +void QVideoWidgetControlBackend::setHue(int hue) +{ + m_widgetControl->setHue(hue); +} + +void QVideoWidgetControlBackend::setSaturation(int saturation) +{ + m_widgetControl->setSaturation(saturation); +} + +void QVideoWidgetControlBackend::setFullScreen(bool fullScreen) +{ + m_widgetControl->setFullScreen(fullScreen); +} + + +Qt::AspectRatioMode QVideoWidgetControlBackend::aspectRatioMode() const +{ + return m_widgetControl->aspectRatioMode(); +} + +void QVideoWidgetControlBackend::setAspectRatioMode(Qt::AspectRatioMode mode) +{ + m_widgetControl->setAspectRatioMode(mode); +} + +QRendererVideoWidgetBackend::QRendererVideoWidgetBackend( + QMediaService *service, QVideoRendererControl *control, QWidget *widget) + : m_service(service) + , m_rendererControl(control) + , m_widget(widget) + , m_surface(new QPainterVideoSurface) + , m_aspectRatioMode(Qt::KeepAspectRatio) + , m_updatePaintDevice(true) +{ + connect(this, SIGNAL(brightnessChanged(int)), m_widget, SLOT(_q_brightnessChanged(int))); + connect(this, SIGNAL(contrastChanged(int)), m_widget, SLOT(_q_contrastChanged(int))); + connect(this, SIGNAL(hueChanged(int)), m_widget, SLOT(_q_hueChanged(int))); + connect(this, SIGNAL(saturationChanged(int)), m_widget, SLOT(_q_saturationChanged(int))); + connect(m_surface, SIGNAL(frameChanged()), this, SLOT(frameChanged())); + connect(m_surface, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat)), + this, SLOT(formatChanged(QVideoSurfaceFormat))); + + m_rendererControl->setSurface(m_surface); +} + +QRendererVideoWidgetBackend::~QRendererVideoWidgetBackend() +{ + delete m_surface; +} + +void QRendererVideoWidgetBackend::releaseControl() +{ + m_service->releaseControl(m_rendererControl); +} + +void QRendererVideoWidgetBackend::clearSurface() +{ + m_rendererControl->setSurface(0); +} + +void QRendererVideoWidgetBackend::setBrightness(int brightness) +{ + m_surface->setBrightness(brightness); + + emit brightnessChanged(brightness); +} + +void QRendererVideoWidgetBackend::setContrast(int contrast) +{ + m_surface->setContrast(contrast); + + emit contrastChanged(contrast); +} + +void QRendererVideoWidgetBackend::setHue(int hue) +{ + m_surface->setHue(hue); + + emit hueChanged(hue); +} + +void QRendererVideoWidgetBackend::setSaturation(int saturation) +{ + m_surface->setSaturation(saturation); + + emit saturationChanged(saturation); +} + +Qt::AspectRatioMode QRendererVideoWidgetBackend::aspectRatioMode() const +{ + return m_aspectRatioMode; +} + +void QRendererVideoWidgetBackend::setAspectRatioMode(Qt::AspectRatioMode mode) +{ + m_aspectRatioMode = mode; + + m_widget->updateGeometry(); +} + +void QRendererVideoWidgetBackend::setFullScreen(bool) +{ +} + +QSize QRendererVideoWidgetBackend::sizeHint() const +{ + return m_surface->surfaceFormat().sizeHint(); +} + +void QRendererVideoWidgetBackend::showEvent() +{ +} + +void QRendererVideoWidgetBackend::hideEvent(QHideEvent *) +{ +#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1) + m_updatePaintDevice = true; + m_surface->setGLContext(0); +#endif +} + +void QRendererVideoWidgetBackend::resizeEvent(QResizeEvent *) +{ + updateRects(); +} + +void QRendererVideoWidgetBackend::moveEvent(QMoveEvent *) +{ +} + +void QRendererVideoWidgetBackend::paintEvent(QPaintEvent *event) +{ + QPainter painter(m_widget); + + if (m_widget->testAttribute(Qt::WA_OpaquePaintEvent)) { + QRegion borderRegion = event->region(); + borderRegion = borderRegion.subtracted(m_boundingRect); + + QBrush brush = m_widget->palette().window(); + + QVector<QRect> rects = borderRegion.rects(); + for (QVector<QRect>::iterator it = rects.begin(), end = rects.end(); it != end; ++it) { + painter.fillRect(*it, brush); + } + } + + if (m_surface->isActive() && m_boundingRect.intersects(event->rect())) { + m_surface->paint(&painter, m_boundingRect, m_sourceRect); + + m_surface->setReady(true); + } else { + #if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1) + if (m_updatePaintDevice && (painter.paintEngine()->type() == QPaintEngine::OpenGL + || painter.paintEngine()->type() == QPaintEngine::OpenGL2)) { + m_updatePaintDevice = false; + + m_surface->setGLContext(const_cast<QGLContext *>(QGLContext::currentContext())); + if (m_surface->supportedShaderTypes() & QPainterVideoSurface::GlslShader) { + m_surface->setShaderType(QPainterVideoSurface::GlslShader); + } else { + m_surface->setShaderType(QPainterVideoSurface::FragmentProgramShader); + } + } +#endif + } + +} + +void QRendererVideoWidgetBackend::formatChanged(const QVideoSurfaceFormat &format) +{ + m_nativeSize = format.sizeHint(); + + updateRects(); + + m_widget->updateGeometry(); + m_widget->update(); +} + +void QRendererVideoWidgetBackend::frameChanged() +{ + m_widget->update(m_boundingRect); +} + +void QRendererVideoWidgetBackend::updateRects() +{ + QRect rect = m_widget->rect(); + + if (m_nativeSize.isEmpty()) { + m_boundingRect = QRect(); + } else if (m_aspectRatioMode == Qt::IgnoreAspectRatio) { + m_boundingRect = rect; + m_sourceRect = QRectF(0, 0, 1, 1); + } else if (m_aspectRatioMode == Qt::KeepAspectRatio) { + QSize size = m_nativeSize; + size.scale(rect.size(), Qt::KeepAspectRatio); + + m_boundingRect = QRect(0, 0, size.width(), size.height()); + m_boundingRect.moveCenter(rect.center()); + + m_sourceRect = QRectF(0, 0, 1, 1); + } else if (m_aspectRatioMode == Qt::KeepAspectRatioByExpanding) { + m_boundingRect = rect; + + QSizeF size = rect.size(); + size.scale(m_nativeSize, Qt::KeepAspectRatio); + + m_sourceRect = QRectF( + 0, 0, size.width() / m_nativeSize.width(), size.height() / m_nativeSize.height()); + m_sourceRect.moveCenter(QPointF(0.5, 0.5)); + } +} + +QWindowVideoWidgetBackend::QWindowVideoWidgetBackend( + QMediaService *service, QVideoWindowControl *control, QWidget *widget) + : m_service(service) + , m_windowControl(control) + , m_widget(widget) + , m_aspectRatioMode(Qt::KeepAspectRatio) +{ + connect(control, SIGNAL(brightnessChanged(int)), m_widget, SLOT(_q_brightnessChanged(int))); + connect(control, SIGNAL(contrastChanged(int)), m_widget, SLOT(_q_contrastChanged(int))); + connect(control, SIGNAL(hueChanged(int)), m_widget, SLOT(_q_hueChanged(int))); + connect(control, SIGNAL(saturationChanged(int)), m_widget, SLOT(_q_saturationChanged(int))); + connect(control, SIGNAL(fullScreenChanged(bool)), m_widget, SLOT(_q_fullScreenChanged(bool))); + connect(control, SIGNAL(nativeSizeChanged()), m_widget, SLOT(_q_dimensionsChanged())); + + control->setWinId(widget->winId()); +} + +QWindowVideoWidgetBackend::~QWindowVideoWidgetBackend() +{ +} + +void QWindowVideoWidgetBackend::releaseControl() +{ + m_service->releaseControl(m_windowControl); +} + +void QWindowVideoWidgetBackend::setBrightness(int brightness) +{ + m_windowControl->setBrightness(brightness); +} + +void QWindowVideoWidgetBackend::setContrast(int contrast) +{ + m_windowControl->setContrast(contrast); +} + +void QWindowVideoWidgetBackend::setHue(int hue) +{ + m_windowControl->setHue(hue); +} + +void QWindowVideoWidgetBackend::setSaturation(int saturation) +{ + m_windowControl->setSaturation(saturation); +} + +void QWindowVideoWidgetBackend::setFullScreen(bool fullScreen) +{ + m_windowControl->setFullScreen(fullScreen); +} + +Qt::AspectRatioMode QWindowVideoWidgetBackend::aspectRatioMode() const +{ + return m_windowControl->aspectRatioMode(); +} + +void QWindowVideoWidgetBackend::setAspectRatioMode(Qt::AspectRatioMode mode) +{ + m_windowControl->setAspectRatioMode(mode); +} + +QSize QWindowVideoWidgetBackend::sizeHint() const +{ + return m_windowControl->nativeSize(); +} + +void QWindowVideoWidgetBackend::showEvent() +{ + m_windowControl->setWinId(m_widget->winId()); + + m_windowControl->setDisplayRect(m_widget->rect()); + +#if defined(Q_WS_WIN) + m_widget->setUpdatesEnabled(false); +#endif +} + +void QWindowVideoWidgetBackend::hideEvent(QHideEvent *) +{ +#if defined(Q_WS_WIN) + m_widget->setUpdatesEnabled(true); +#endif +} + +void QWindowVideoWidgetBackend::moveEvent(QMoveEvent *) +{ + m_windowControl->setDisplayRect(m_widget->rect()); +} + +void QWindowVideoWidgetBackend::resizeEvent(QResizeEvent *) +{ + m_windowControl->setDisplayRect(m_widget->rect()); +} + +void QWindowVideoWidgetBackend::paintEvent(QPaintEvent *event) +{ + if (m_widget->testAttribute(Qt::WA_OpaquePaintEvent)) { + QPainter painter(m_widget); + + painter.fillRect(event->rect(), m_widget->palette().window()); + } + + m_windowControl->repaint(); + + event->accept(); +} + +#if defined(Q_WS_WIN) +bool QWindowVideoWidgetBackend::winEvent(MSG *message, long *) +{ + if (message->message == WM_PAINT) + m_windowControl->repaint(); + + return false; +} +#endif + +void QVideoWidgetPrivate::setCurrentControl(QVideoWidgetControlInterface *control) +{ + if (currentControl != control) { + currentControl = control; + + currentControl->setBrightness(brightness); + currentControl->setContrast(contrast); + currentControl->setHue(hue); + currentControl->setSaturation(saturation); + currentControl->setAspectRatioMode(aspectRatioMode); + } +} + +void QVideoWidgetPrivate::clearService() +{ + if (service) { + QObject::disconnect(service, SIGNAL(destroyed()), q_func(), SLOT(_q_serviceDestroyed())); + + if (widgetBackend) { + QLayout *layout = q_func()->layout(); + + for (QLayoutItem *item = layout->takeAt(0); item; item = layout->takeAt(0)) { + item->widget()->setParent(0); + delete item; + } + delete layout; + + widgetBackend->releaseControl(); + + delete widgetBackend; + widgetBackend = 0; + } else if (rendererBackend) { + rendererBackend->clearSurface(); + rendererBackend->releaseControl(); + + delete rendererBackend; + rendererBackend = 0; + } else { + windowBackend->releaseControl(); + + delete windowBackend; + windowBackend = 0; + } + + currentBackend = 0; + currentControl = 0; + service = 0; + } +} + +bool QVideoWidgetPrivate::createWidgetBackend() +{ + if (QMediaControl *control = service->requestControl(QVideoWidgetControl_iid)) { + if (QVideoWidgetControl *widgetControl = qobject_cast<QVideoWidgetControl *>(control)) { + widgetBackend = new QVideoWidgetControlBackend(service, widgetControl, q_func()); + + setCurrentControl(widgetBackend); + + return true; + } + service->releaseControl(control); + } + return false; +} + +bool QVideoWidgetPrivate::createWindowBackend() +{ + if (QMediaControl *control = service->requestControl(QVideoWindowControl_iid)) { + if (QVideoWindowControl *windowControl = qobject_cast<QVideoWindowControl *>(control)) { + windowBackend = new QWindowVideoWidgetBackend(service, windowControl, q_func()); + currentBackend = windowBackend; + + setCurrentControl(windowBackend); + + return true; + } + service->releaseControl(control); + } + return false; +} + +bool QVideoWidgetPrivate::createRendererBackend() +{ + if (QMediaControl *control = service->requestControl(QVideoRendererControl_iid)) { + if (QVideoRendererControl *rendererControl = qobject_cast<QVideoRendererControl *>(control)) { + rendererBackend = new QRendererVideoWidgetBackend(service, rendererControl, q_func()); + currentBackend = rendererBackend; + + setCurrentControl(rendererBackend); + + return true; + } + service->releaseControl(control); + } + return false; +} + +void QVideoWidgetPrivate::_q_serviceDestroyed() +{ + if (widgetBackend) + delete q_func()->layout(); + + delete widgetBackend; + delete windowBackend; + delete rendererBackend; + + widgetBackend = 0; + windowBackend = 0; + rendererBackend = 0; + currentControl = 0; + currentBackend = 0; + service = 0; +} + +void QVideoWidgetPrivate::_q_brightnessChanged(int b) +{ + if (b != brightness) + emit q_func()->brightnessChanged(brightness = b); +} + +void QVideoWidgetPrivate::_q_contrastChanged(int c) +{ + if (c != contrast) + emit q_func()->contrastChanged(contrast = c); +} + +void QVideoWidgetPrivate::_q_hueChanged(int h) +{ + if (h != hue) + emit q_func()->hueChanged(hue = h); +} + +void QVideoWidgetPrivate::_q_saturationChanged(int s) +{ + if (s != saturation) + emit q_func()->saturationChanged(saturation = s); +} + + +void QVideoWidgetPrivate::_q_fullScreenChanged(bool fullScreen) +{ + if (!fullScreen && q_func()->isFullScreen()) + q_func()->showNormal(); +} + +void QVideoWidgetPrivate::_q_dimensionsChanged() +{ + q_func()->updateGeometry(); + q_func()->update(); +} + +/*! + \class QVideoWidget + + + \brief The QVideoWidget class provides a widget which presents video + produced by a media object. + \ingroup multimedia + \inmodule QtMultimedia + \since 1.0 + + \inmodule QtMultimedia + + Attaching a QVideoWidget to a QMediaObject allows it to display the + video or image output of that media object. A QVideoWidget is attached + to media object by passing a pointer to the QMediaObject in its + constructor, and detached by destroying the QVideoWidget. + + \snippet doc/src/snippets/multimedia-snippets/video.cpp Video widget + + \bold {Note}: Only a single display output can be attached to a media + object at one time. + + \sa QMediaObject, QMediaPlayer, QGraphicsVideoItem +*/ + +/*! + Constructs a new video widget. + + The \a parent is passed to QWidget. +*/ +QVideoWidget::QVideoWidget(QWidget *parent) + : QWidget(parent, 0) + , d_ptr(new QVideoWidgetPrivate) +{ + d_ptr->q_ptr = this; +} + +/*! + \internal +*/ +QVideoWidget::QVideoWidget(QVideoWidgetPrivate &dd, QWidget *parent) + : QWidget(parent, 0) + , d_ptr(&dd) +{ + d_ptr->q_ptr = this; + + QPalette palette = QWidget::palette(); + palette.setColor(QPalette::Background, Qt::black); + setPalette(palette); +} + +/*! + Destroys a video widget. +*/ +QVideoWidget::~QVideoWidget() +{ + d_ptr->clearService(); + + delete d_ptr; +} + +/*! + \property QVideoWidget::mediaObject + \brief the media object which provides the video displayed by a widget. + \since 1.0 +*/ + +QMediaObject *QVideoWidget::mediaObject() const +{ + return d_func()->mediaObject; +} + +/*! + \internal + \since 1.0 +*/ +bool QVideoWidget::setMediaObject(QMediaObject *object) +{ + Q_D(QVideoWidget); + + if (object == d->mediaObject) + return true; + + d->clearService(); + + d->mediaObject = object; + + if (d->mediaObject) + d->service = d->mediaObject->service(); + + if (d->service) { + if (d->createWidgetBackend()) { + // Nothing to do here. + } else if ((!window() || !window()->testAttribute(Qt::WA_DontShowOnScreen)) + && d->createWindowBackend()) { + if (isVisible()) + d->windowBackend->showEvent(); + } else if (d->createRendererBackend()) { + if (isVisible()) + d->rendererBackend->showEvent(); + } else { + d->service = 0; + d->mediaObject = 0; + + return false; + } + + connect(d->service, SIGNAL(destroyed()), SLOT(_q_serviceDestroyed())); + } else { + d->mediaObject = 0; + + return false; + } + + return true; +} + +/*! + \property QVideoWidget::aspectRatioMode + \brief how video is scaled with respect to its aspect ratio. + \since 1.0 +*/ + +Qt::AspectRatioMode QVideoWidget::aspectRatioMode() const +{ + return d_func()->aspectRatioMode; +} + +void QVideoWidget::setAspectRatioMode(Qt::AspectRatioMode mode) +{ + Q_D(QVideoWidget); + + if (d->currentControl) { + d->currentControl->setAspectRatioMode(mode); + d->aspectRatioMode = d->currentControl->aspectRatioMode(); + } else { + d->aspectRatioMode = mode; + } +} + +/*! + \property QVideoWidget::fullScreen + \brief whether video display is confined to a window or is fullScreen. + \since 1.0 +*/ + +void QVideoWidget::setFullScreen(bool fullScreen) +{ + Q_D(QVideoWidget); + + if (fullScreen) { + Qt::WindowFlags flags = windowFlags(); + + d->nonFullScreenFlags = flags & (Qt::Window | Qt::SubWindow); + flags |= Qt::Window; + flags &= ~Qt::SubWindow; + setWindowFlags(flags); + + showFullScreen(); + } else { + showNormal(); + } +} + +/*! + \fn QVideoWidget::fullScreenChanged(bool fullScreen) + + Signals that the \a fullScreen mode of a video widget has changed. + + \since 1.0 + \sa fullScreen +*/ + +/*! + \property QVideoWidget::brightness + \brief an adjustment to the brightness of displayed video. + + Valid brightness values range between -100 and 100, the default is 0. + \since 1.0 +*/ + +int QVideoWidget::brightness() const +{ + return d_func()->brightness; +} + +void QVideoWidget::setBrightness(int brightness) +{ + Q_D(QVideoWidget); + + int boundedBrightness = qBound(-100, brightness, 100); + + if (d->currentControl) + d->currentControl->setBrightness(boundedBrightness); + else if (d->brightness != boundedBrightness) + emit brightnessChanged(d->brightness = boundedBrightness); +} + +/*! + \fn QVideoWidget::brightnessChanged(int brightness) + + Signals that a video widgets's \a brightness adjustment has changed. + + \since 1.0 + \sa brightness +*/ + +/*! + \property QVideoWidget::contrast + \brief an adjustment to the contrast of displayed video. + + Valid contrast values range between -100 and 100, the default is 0. + + \since 1.0 +*/ + +int QVideoWidget::contrast() const +{ + return d_func()->contrast; +} + +void QVideoWidget::setContrast(int contrast) +{ + Q_D(QVideoWidget); + + int boundedContrast = qBound(-100, contrast, 100); + + if (d->currentControl) + d->currentControl->setContrast(boundedContrast); + else if (d->contrast != boundedContrast) + emit contrastChanged(d->contrast = boundedContrast); +} + +/*! + \fn QVideoWidget::contrastChanged(int contrast) + + Signals that a video widgets's \a contrast adjustment has changed. + + \since 1.0 + \sa contrast +*/ + +/*! + \property QVideoWidget::hue + \brief an adjustment to the hue of displayed video. + + Valid hue values range between -100 and 100, the default is 0. + \since 1.0 +*/ + +int QVideoWidget::hue() const +{ + return d_func()->hue; +} + +void QVideoWidget::setHue(int hue) +{ + Q_D(QVideoWidget); + + int boundedHue = qBound(-100, hue, 100); + + if (d->currentControl) + d->currentControl->setHue(boundedHue); + else if (d->hue != boundedHue) + emit hueChanged(d->hue = boundedHue); +} + +/*! + \fn QVideoWidget::hueChanged(int hue) + + Signals that a video widgets's \a hue has changed. + + \since 1.0 + \sa hue +*/ + +/*! + \property QVideoWidget::saturation + \brief an adjustment to the saturation of displayed video. + + Valid saturation values range between -100 and 100, the default is 0. + \since 1.0 +*/ + +int QVideoWidget::saturation() const +{ + return d_func()->saturation; +} + +void QVideoWidget::setSaturation(int saturation) +{ + Q_D(QVideoWidget); + + int boundedSaturation = qBound(-100, saturation, 100); + + if (d->currentControl) + d->currentControl->setSaturation(boundedSaturation); + else if (d->saturation != boundedSaturation) + emit saturationChanged(d->saturation = boundedSaturation); + +} + +/*! + \fn QVideoWidget::saturationChanged(int saturation) + + Signals that a video widgets's \a saturation has changed. + + \since 1.0 + \sa saturation +*/ + +/*! + Returns the size hint for the current back end, + if there is one, or else the size hint from QWidget. + \since 1.0 + */ +QSize QVideoWidget::sizeHint() const +{ + Q_D(const QVideoWidget); + + if (d->currentBackend) + return d->currentBackend->sizeHint(); + else + return QWidget::sizeHint(); + + +} + +/*! + Current event \a event. + Returns the value of the baseclass QWidget::event(QEvent *event) function. + \since 1.0 +*/ +bool QVideoWidget::event(QEvent *event) +{ + Q_D(QVideoWidget); + + if (event->type() == QEvent::WindowStateChange) { + Qt::WindowFlags flags = windowFlags(); + + if (windowState() & Qt::WindowFullScreen) { + if (d->currentControl) + d->currentControl->setFullScreen(true); + + if (!d->wasFullScreen) + emit fullScreenChanged(d->wasFullScreen = true); + } else { + if (d->currentControl) + d->currentControl->setFullScreen(false); + + if (d->wasFullScreen) { + flags &= ~(Qt::Window | Qt::SubWindow); //clear the flags... + flags |= d->nonFullScreenFlags; //then we reset the flags (window and subwindow) + setWindowFlags(flags); + + emit fullScreenChanged(d->wasFullScreen = false); + } + } + } + return QWidget::event(event); +} + +/*! + Handles the show \a event. + \since 1.0 + */ +void QVideoWidget::showEvent(QShowEvent *event) +{ + Q_D(QVideoWidget); + + QWidget::showEvent(event); + + // The window backend won't work for re-directed windows so use the renderer backend instead. + if (d->windowBackend && window()->testAttribute(Qt::WA_DontShowOnScreen)) { + d->windowBackend->releaseControl(); + + delete d->windowBackend; + d->windowBackend = 0; + + d->createRendererBackend(); + } + + if (d->currentBackend) + d->currentBackend->showEvent(); +} + +/*! + + Handles the hide \a event. + \since 1.0 +*/ +void QVideoWidget::hideEvent(QHideEvent *event) +{ + Q_D(QVideoWidget); + + if (d->currentBackend) + d->currentBackend->hideEvent(event); + + QWidget::hideEvent(event); +} + +/*! + Handles the resize \a event. + \since 1.0 + */ +void QVideoWidget::resizeEvent(QResizeEvent *event) +{ + Q_D(QVideoWidget); + + QWidget::resizeEvent(event); + + if (d->currentBackend) + d->currentBackend->resizeEvent(event); +} + +/*! + Handles the move \a event. + \since 1.0 + */ +void QVideoWidget::moveEvent(QMoveEvent *event) +{ + Q_D(QVideoWidget); + + if (d->currentBackend) + d->currentBackend->moveEvent(event); +} + +/*! + Handles the paint \a event. + \since 1.0 + */ +void QVideoWidget::paintEvent(QPaintEvent *event) +{ + Q_D(QVideoWidget); + + if (d->currentBackend) { + d->currentBackend->paintEvent(event); + } else if (testAttribute(Qt::WA_OpaquePaintEvent)) { + QPainter painter(this); + + painter.fillRect(event->rect(), palette().window()); + } +} + + +#if defined(Q_WS_WIN) +/*! + \reimp + \internal + \since 1.1 +*/ +bool QVideoWidget::winEvent(MSG *message, long *result) +{ + return d_func()->windowBackend && d_func()->windowBackend->winEvent(message, result) + ? true + : QWidget::winEvent(message, result); +} +#endif + + +#include "moc_qvideowidget.cpp" +#include "moc_qvideowidget_p.cpp" +QT_END_NAMESPACE + |