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Diffstat (limited to 'src/multimediawidgets/qvideowidget.cpp')
| -rw-r--r-- | src/multimediawidgets/qvideowidget.cpp | 1043 |
1 files changed, 0 insertions, 1043 deletions
diff --git a/src/multimediawidgets/qvideowidget.cpp b/src/multimediawidgets/qvideowidget.cpp deleted file mode 100644 index 919ed1f..0000000 --- a/src/multimediawidgets/qvideowidget.cpp +++ /dev/null @@ -1,1043 +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 "qvideowidget_p.h" -#include "qpaintervideosurface_p.h" - -#include <qmediaobject.h> -#include <qmediaservice.h> -#include <qvideowindowcontrol.h> -#include <qvideowidgetcontrol.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 - |