--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/multimedia/qvideowidget.cpp Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,978 @@
+/****************************************************************************
+**
+** 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 Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 "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()));
+}
+
+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());
+}
+
+void QWindowVideoWidgetBackend::hideEvent(QHideEvent *)
+{
+}
+
+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();
+}
+
+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
+ \preliminary
+
+ \brief The QVideoWidget class provides a widget which presents video
+ produced by a media object.
+ \ingroup multimedia
+
+ 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.
+
+ \code
+ player = new QMediaPlayer;
+
+ widget = new QVideoWidget;
+ widget->show();
+
+ player->setVideoOutput(widget);
+ player->setMedia(QUrl("http://example.com/movie.mp4"));
+ player->play();
+ \endcode
+
+ \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;
+}
+
+/*!
+ 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.
+*/
+
+QMediaObject *QVideoWidget::mediaObject() const
+{
+ return d_func()->mediaObject;
+}
+
+/*!
+ \internal
+*/
+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.
+*/
+
+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.
+*/
+
+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.
+
+ \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.
+*/
+
+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.
+
+ \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.
+
+*/
+
+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.
+
+ \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.
+*/
+
+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.
+
+ \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.
+*/
+
+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.
+
+ \sa saturation
+*/
+
+/*!
+ Returns the size hint for the current back end,
+ if there is one, or else the size hint from QWidget.
+ */
+QSize QVideoWidget::sizeHint() const
+{
+ Q_D(const QVideoWidget);
+
+ if (d->currentBackend)
+ return d->currentBackend->sizeHint();
+ else
+ return QWidget::sizeHint();
+
+
+}
+
+/*!
+ \reimp
+ \internal
+ */
+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.
+ */
+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.
+*/
+void QVideoWidget::hideEvent(QHideEvent *event)
+{
+ Q_D(QVideoWidget);
+
+ if (d->currentBackend)
+ d->currentBackend->hideEvent(event);
+
+ QWidget::hideEvent(event);
+}
+
+/*!
+ Handles the resize \a event.
+ */
+void QVideoWidget::resizeEvent(QResizeEvent *event)
+{
+ Q_D(QVideoWidget);
+
+ QWidget::resizeEvent(event);
+
+ if (d->currentBackend)
+ d->currentBackend->resizeEvent(event);
+}
+
+/*!
+ Handles the move \a event.
+ */
+void QVideoWidget::moveEvent(QMoveEvent *event)
+{
+ Q_D(QVideoWidget);
+
+ if (d->currentBackend)
+ d->currentBackend->moveEvent(event);
+}
+
+/*!
+ Handles the paint \a event.
+ */
+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());
+ }
+}
+
+#include "moc_qvideowidget.cpp"
+#include "moc_qvideowidget_p.cpp"
+QT_END_NAMESPACE
+