qvideowidget.cpp

Go to the documentation of this file.

// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include <private/qtmultimediaglobal_p.h>
#include "qvideowidget_p.h"
 
#include <QtCore/qobject.h>
#include <QtMultimedia/qtmultimediaglobal.h>
#include <qvideosink.h>
#include <private/qvideowindow_p.h>
 
#include <qobject.h>
#include <qvideoframeformat.h>
#include <qpainter.h>
 
#include <qapplication.h>
#include <qevent.h>
#include <qboxlayout.h>
#include <qnamespace.h>
 
#include <qwindow.h>
#include <private/qhighdpiscaling_p.h>
 
#ifdef Q_OS_WIN
#include <QtCore/qt_windows.h>
#endif
 
using namespace Qt;
 
QT_BEGIN_NAMESPACE
 
QVideoWidget::QVideoWidget(QWidget *parent)
    : QWidget(parent, {})
    , d_ptr(new QVideoWidgetPrivate)
{
    d_ptr->q_ptr = this;
    d_ptr->videoWindow = new QVideoWindow;
    d_ptr->videoWindow->setFlag(Qt::WindowTransparentForInput, true);
    d_ptr->windowContainer = QWidget::createWindowContainer(d_ptr->videoWindow, this, Qt::WindowTransparentForInput);
    d_ptr->windowContainer->move(0, 0);
    d_ptr->windowContainer->resize(size());
 
    connect(d_ptr->videoWindow, &QVideoWindow::aspectRatioModeChanged, this, &QVideoWidget::aspectRatioModeChanged);
}
 
QVideoWidget::~QVideoWidget()
{
    delete d_ptr->videoWindow;
    delete d_ptr;
}
 
QVideoSink *QVideoWidget::videoSink() const
{
    return d_ptr->videoWindow->videoSink();
}
 
Qt::AspectRatioMode QVideoWidget::aspectRatioMode() const
{
    return d_ptr->videoWindow->aspectRatioMode();
}
 
void QVideoWidget::setAspectRatioMode(Qt::AspectRatioMode mode)
{
    d_ptr->videoWindow->setAspectRatioMode(mode);
}
 
void QVideoWidget::setFullScreen(bool fullScreen)
{
    Q_D(QVideoWidget);
    if (isFullScreen() == fullScreen)
        return;
 
    Qt::WindowFlags flags = windowFlags();
 
    if (fullScreen) {
        // get the position of the widget in global coordinates
        QPoint position = mapToGlobal(QPoint(0,0));
        d->nonFullScreenFlags = flags & (Qt::Window | Qt::SubWindow);
        d_ptr->nonFullscreenPos = pos();
        flags |= Qt::Window;
        flags &= ~Qt::SubWindow;
        setWindowFlags(flags);
        // move the widget to the position it had on screen, so that showFullScreen() will
        // place it on the correct screen
        move(position);
 
        showFullScreen();
    } else {
        flags &= ~(Qt::Window | Qt::SubWindow); //clear the flags...
        flags |= d->nonFullScreenFlags; //then we reset the flags (window and subwindow)
        setWindowFlags(flags);
 
        showNormal();
        move(d_ptr->nonFullscreenPos);
        d_ptr->nonFullscreenPos = {};
    }
}
 
QSize QVideoWidget::sizeHint() const
{
    auto size = videoSink()->videoSize();
    if (size.isValid())
        return size;
 
    return QWidget::sizeHint();
}
 
bool QVideoWidget::event(QEvent *event)
{
    Q_D(QVideoWidget);
 
    if (event->type() == QEvent::WindowStateChange) {
        bool fullScreen = bool(windowState() & Qt::WindowFullScreen);
        if (fullScreen != d->wasFullScreen) {
            emit fullScreenChanged(fullScreen);
            d->wasFullScreen = fullScreen;
        }
    }
 
    return QWidget::event(event);
}
 
void QVideoWidget::showEvent(QShowEvent *event)
{
    QWidget::showEvent(event);
}
 
void QVideoWidget::hideEvent(QHideEvent *event)
{
    QWidget::hideEvent(event);
}
 
void QVideoWidget::resizeEvent(QResizeEvent *event)
{
    d_ptr->windowContainer->resize(event->size());
    QWidget::resizeEvent(event);
}
 
void QVideoWidget::moveEvent(QMoveEvent * /*event*/)
{
}
 
QT_END_NAMESPACE
 
#include "moc_qvideowidget.cpp"