51334d2995
- Fixed \snippet paths - Minor language edits - Removed unnecessary multiple page commands in a single comment block. For example, \fn and \qmlsignal in a single comment block is not allowed. Such instances must be documented in separate comment blocks. Change-Id: I65f4518499e2600c4e1807356d4116c575e48c19 Reviewed-by: Andy Nichols <andy.nichols@digia.com> Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
1021 lines
26 KiB
C++
1021 lines
26 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qvideowidget_p.h"
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#include "qpaintervideosurface_p.h"
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#include <qmediaobject.h>
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#include <qmediaservice.h>
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#include <qvideowindowcontrol.h>
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#include <qvideowidgetcontrol.h>
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#include <qvideorenderercontrol.h>
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#include <qvideosurfaceformat.h>
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#include <qpainter.h>
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#include <qapplication.h>
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#include <qevent.h>
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#include <qdialog.h>
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#include <qboxlayout.h>
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#include <qnamespace.h>
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using namespace Qt;
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QT_BEGIN_NAMESPACE
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QVideoWidgetControlBackend::QVideoWidgetControlBackend(
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QMediaService *service, QVideoWidgetControl *control, QWidget *widget)
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: m_service(service)
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, m_widgetControl(control)
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{
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connect(control, SIGNAL(brightnessChanged(int)), widget, SLOT(_q_brightnessChanged(int)));
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connect(control, SIGNAL(contrastChanged(int)), widget, SLOT(_q_contrastChanged(int)));
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connect(control, SIGNAL(hueChanged(int)), widget, SLOT(_q_hueChanged(int)));
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connect(control, SIGNAL(saturationChanged(int)), widget, SLOT(_q_saturationChanged(int)));
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connect(control, SIGNAL(fullScreenChanged(bool)), widget, SLOT(_q_fullScreenChanged(bool)));
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QBoxLayout *layout = new QVBoxLayout;
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layout->setMargin(0);
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layout->setSpacing(0);
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layout->addWidget(control->videoWidget());
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widget->setLayout(layout);
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}
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void QVideoWidgetControlBackend::releaseControl()
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{
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m_service->releaseControl(m_widgetControl);
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}
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void QVideoWidgetControlBackend::setBrightness(int brightness)
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{
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m_widgetControl->setBrightness(brightness);
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}
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void QVideoWidgetControlBackend::setContrast(int contrast)
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{
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m_widgetControl->setContrast(contrast);
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}
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void QVideoWidgetControlBackend::setHue(int hue)
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{
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m_widgetControl->setHue(hue);
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}
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void QVideoWidgetControlBackend::setSaturation(int saturation)
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{
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m_widgetControl->setSaturation(saturation);
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}
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void QVideoWidgetControlBackend::setFullScreen(bool fullScreen)
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{
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m_widgetControl->setFullScreen(fullScreen);
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}
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Qt::AspectRatioMode QVideoWidgetControlBackend::aspectRatioMode() const
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{
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return m_widgetControl->aspectRatioMode();
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}
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void QVideoWidgetControlBackend::setAspectRatioMode(Qt::AspectRatioMode mode)
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{
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m_widgetControl->setAspectRatioMode(mode);
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}
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QRendererVideoWidgetBackend::QRendererVideoWidgetBackend(
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QMediaService *service, QVideoRendererControl *control, QWidget *widget)
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: m_service(service)
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, m_rendererControl(control)
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, m_widget(widget)
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, m_surface(new QPainterVideoSurface)
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, m_aspectRatioMode(Qt::KeepAspectRatio)
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, m_updatePaintDevice(true)
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{
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connect(this, SIGNAL(brightnessChanged(int)), m_widget, SLOT(_q_brightnessChanged(int)));
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connect(this, SIGNAL(contrastChanged(int)), m_widget, SLOT(_q_contrastChanged(int)));
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connect(this, SIGNAL(hueChanged(int)), m_widget, SLOT(_q_hueChanged(int)));
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connect(this, SIGNAL(saturationChanged(int)), m_widget, SLOT(_q_saturationChanged(int)));
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connect(m_surface, SIGNAL(frameChanged()), this, SLOT(frameChanged()));
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connect(m_surface, SIGNAL(surfaceFormatChanged(QVideoSurfaceFormat)),
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this, SLOT(formatChanged(QVideoSurfaceFormat)));
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m_rendererControl->setSurface(m_surface);
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}
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QRendererVideoWidgetBackend::~QRendererVideoWidgetBackend()
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{
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delete m_surface;
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}
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void QRendererVideoWidgetBackend::releaseControl()
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{
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m_service->releaseControl(m_rendererControl);
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}
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void QRendererVideoWidgetBackend::clearSurface()
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{
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m_rendererControl->setSurface(0);
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}
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void QRendererVideoWidgetBackend::setBrightness(int brightness)
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{
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m_surface->setBrightness(brightness);
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emit brightnessChanged(brightness);
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}
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void QRendererVideoWidgetBackend::setContrast(int contrast)
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{
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m_surface->setContrast(contrast);
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emit contrastChanged(contrast);
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}
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void QRendererVideoWidgetBackend::setHue(int hue)
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{
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m_surface->setHue(hue);
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emit hueChanged(hue);
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}
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void QRendererVideoWidgetBackend::setSaturation(int saturation)
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{
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m_surface->setSaturation(saturation);
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emit saturationChanged(saturation);
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}
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Qt::AspectRatioMode QRendererVideoWidgetBackend::aspectRatioMode() const
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{
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return m_aspectRatioMode;
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}
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void QRendererVideoWidgetBackend::setAspectRatioMode(Qt::AspectRatioMode mode)
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{
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m_aspectRatioMode = mode;
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m_widget->updateGeometry();
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}
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void QRendererVideoWidgetBackend::setFullScreen(bool)
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{
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}
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QSize QRendererVideoWidgetBackend::sizeHint() const
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{
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return m_surface->surfaceFormat().sizeHint();
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}
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void QRendererVideoWidgetBackend::showEvent()
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{
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}
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void QRendererVideoWidgetBackend::hideEvent(QHideEvent *)
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{
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#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1)
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m_updatePaintDevice = true;
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m_surface->setGLContext(0);
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#endif
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}
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void QRendererVideoWidgetBackend::resizeEvent(QResizeEvent *)
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{
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updateRects();
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}
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void QRendererVideoWidgetBackend::moveEvent(QMoveEvent *)
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{
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}
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void QRendererVideoWidgetBackend::paintEvent(QPaintEvent *event)
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{
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QPainter painter(m_widget);
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if (m_widget->testAttribute(Qt::WA_OpaquePaintEvent)) {
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QRegion borderRegion = event->region();
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borderRegion = borderRegion.subtracted(m_boundingRect);
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QBrush brush = m_widget->palette().window();
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QVector<QRect> rects = borderRegion.rects();
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for (QVector<QRect>::iterator it = rects.begin(), end = rects.end(); it != end; ++it) {
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painter.fillRect(*it, brush);
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}
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}
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if (m_surface->isActive() && m_boundingRect.intersects(event->rect())) {
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m_surface->paint(&painter, m_boundingRect, m_sourceRect);
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m_surface->setReady(true);
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} else {
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#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1)
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if (m_updatePaintDevice && (painter.paintEngine()->type() == QPaintEngine::OpenGL
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|| painter.paintEngine()->type() == QPaintEngine::OpenGL2)) {
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m_updatePaintDevice = false;
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m_surface->setGLContext(const_cast<QGLContext *>(QGLContext::currentContext()));
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if (m_surface->supportedShaderTypes() & QPainterVideoSurface::GlslShader) {
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m_surface->setShaderType(QPainterVideoSurface::GlslShader);
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} else {
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m_surface->setShaderType(QPainterVideoSurface::FragmentProgramShader);
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}
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}
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#endif
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}
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}
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void QRendererVideoWidgetBackend::formatChanged(const QVideoSurfaceFormat &format)
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{
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m_nativeSize = format.sizeHint();
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updateRects();
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m_widget->updateGeometry();
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m_widget->update();
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}
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void QRendererVideoWidgetBackend::frameChanged()
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{
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m_widget->update(m_boundingRect);
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}
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void QRendererVideoWidgetBackend::updateRects()
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{
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QRect rect = m_widget->rect();
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if (m_nativeSize.isEmpty()) {
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m_boundingRect = QRect();
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} else if (m_aspectRatioMode == Qt::IgnoreAspectRatio) {
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m_boundingRect = rect;
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m_sourceRect = QRectF(0, 0, 1, 1);
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} else if (m_aspectRatioMode == Qt::KeepAspectRatio) {
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QSize size = m_nativeSize;
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size.scale(rect.size(), Qt::KeepAspectRatio);
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m_boundingRect = QRect(0, 0, size.width(), size.height());
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m_boundingRect.moveCenter(rect.center());
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m_sourceRect = QRectF(0, 0, 1, 1);
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} else if (m_aspectRatioMode == Qt::KeepAspectRatioByExpanding) {
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m_boundingRect = rect;
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QSizeF size = rect.size();
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size.scale(m_nativeSize, Qt::KeepAspectRatio);
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m_sourceRect = QRectF(
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0, 0, size.width() / m_nativeSize.width(), size.height() / m_nativeSize.height());
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m_sourceRect.moveCenter(QPointF(0.5, 0.5));
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}
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}
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QWindowVideoWidgetBackend::QWindowVideoWidgetBackend(
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QMediaService *service, QVideoWindowControl *control, QWidget *widget)
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: m_service(service)
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, m_windowControl(control)
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, m_widget(widget)
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, m_aspectRatioMode(Qt::KeepAspectRatio)
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{
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connect(control, SIGNAL(brightnessChanged(int)), m_widget, SLOT(_q_brightnessChanged(int)));
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connect(control, SIGNAL(contrastChanged(int)), m_widget, SLOT(_q_contrastChanged(int)));
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connect(control, SIGNAL(hueChanged(int)), m_widget, SLOT(_q_hueChanged(int)));
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connect(control, SIGNAL(saturationChanged(int)), m_widget, SLOT(_q_saturationChanged(int)));
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connect(control, SIGNAL(fullScreenChanged(bool)), m_widget, SLOT(_q_fullScreenChanged(bool)));
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connect(control, SIGNAL(nativeSizeChanged()), m_widget, SLOT(_q_dimensionsChanged()));
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control->setWinId(widget->winId());
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}
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QWindowVideoWidgetBackend::~QWindowVideoWidgetBackend()
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{
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}
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void QWindowVideoWidgetBackend::releaseControl()
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{
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m_service->releaseControl(m_windowControl);
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}
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void QWindowVideoWidgetBackend::setBrightness(int brightness)
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{
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m_windowControl->setBrightness(brightness);
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}
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void QWindowVideoWidgetBackend::setContrast(int contrast)
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{
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m_windowControl->setContrast(contrast);
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}
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void QWindowVideoWidgetBackend::setHue(int hue)
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{
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m_windowControl->setHue(hue);
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}
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void QWindowVideoWidgetBackend::setSaturation(int saturation)
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{
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m_windowControl->setSaturation(saturation);
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}
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void QWindowVideoWidgetBackend::setFullScreen(bool fullScreen)
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{
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m_windowControl->setFullScreen(fullScreen);
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}
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Qt::AspectRatioMode QWindowVideoWidgetBackend::aspectRatioMode() const
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{
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return m_windowControl->aspectRatioMode();
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}
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void QWindowVideoWidgetBackend::setAspectRatioMode(Qt::AspectRatioMode mode)
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{
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m_windowControl->setAspectRatioMode(mode);
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}
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QSize QWindowVideoWidgetBackend::sizeHint() const
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{
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return m_windowControl->nativeSize();
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}
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void QWindowVideoWidgetBackend::showEvent()
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{
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m_windowControl->setWinId(m_widget->winId());
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m_windowControl->setDisplayRect(m_widget->rect());
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#if defined(Q_WS_WIN)
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m_widget->setUpdatesEnabled(false);
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#endif
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}
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void QWindowVideoWidgetBackend::hideEvent(QHideEvent *)
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{
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#if defined(Q_WS_WIN)
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m_widget->setUpdatesEnabled(true);
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#endif
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}
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void QWindowVideoWidgetBackend::moveEvent(QMoveEvent *)
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{
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m_windowControl->setDisplayRect(m_widget->rect());
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}
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void QWindowVideoWidgetBackend::resizeEvent(QResizeEvent *)
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{
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m_windowControl->setDisplayRect(m_widget->rect());
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}
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void QWindowVideoWidgetBackend::paintEvent(QPaintEvent *event)
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{
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if (m_widget->testAttribute(Qt::WA_OpaquePaintEvent)) {
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QPainter painter(m_widget);
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painter.fillRect(event->rect(), m_widget->palette().window());
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}
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m_windowControl->repaint();
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event->accept();
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}
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#if defined(Q_WS_WIN)
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bool QWindowVideoWidgetBackend::winEvent(MSG *message, long *)
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{
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if (message->message == WM_PAINT)
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m_windowControl->repaint();
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return false;
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}
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#endif
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void QVideoWidgetPrivate::setCurrentControl(QVideoWidgetControlInterface *control)
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{
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if (currentControl != control) {
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currentControl = control;
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currentControl->setBrightness(brightness);
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currentControl->setContrast(contrast);
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currentControl->setHue(hue);
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currentControl->setSaturation(saturation);
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currentControl->setAspectRatioMode(aspectRatioMode);
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}
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}
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void QVideoWidgetPrivate::clearService()
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{
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if (service) {
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QObject::disconnect(service, SIGNAL(destroyed()), q_func(), SLOT(_q_serviceDestroyed()));
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if (widgetBackend) {
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QLayout *layout = q_func()->layout();
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for (QLayoutItem *item = layout->takeAt(0); item; item = layout->takeAt(0)) {
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item->widget()->setParent(0);
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delete item;
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}
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delete layout;
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widgetBackend->releaseControl();
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delete widgetBackend;
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widgetBackend = 0;
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} else if (rendererBackend) {
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rendererBackend->clearSurface();
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rendererBackend->releaseControl();
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delete rendererBackend;
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rendererBackend = 0;
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} else {
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windowBackend->releaseControl();
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delete windowBackend;
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windowBackend = 0;
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}
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currentBackend = 0;
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currentControl = 0;
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service = 0;
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}
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}
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bool QVideoWidgetPrivate::createWidgetBackend()
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{
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if (QMediaControl *control = service->requestControl(QVideoWidgetControl_iid)) {
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if (QVideoWidgetControl *widgetControl = qobject_cast<QVideoWidgetControl *>(control)) {
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widgetBackend = new QVideoWidgetControlBackend(service, widgetControl, q_func());
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setCurrentControl(widgetBackend);
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return true;
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}
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service->releaseControl(control);
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}
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return false;
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}
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bool QVideoWidgetPrivate::createWindowBackend()
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{
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if (QMediaControl *control = service->requestControl(QVideoWindowControl_iid)) {
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if (QVideoWindowControl *windowControl = qobject_cast<QVideoWindowControl *>(control)) {
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windowBackend = new QWindowVideoWidgetBackend(service, windowControl, q_func());
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currentBackend = windowBackend;
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setCurrentControl(windowBackend);
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return true;
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}
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service->releaseControl(control);
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}
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return false;
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}
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bool QVideoWidgetPrivate::createRendererBackend()
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{
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if (QMediaControl *control = service->requestControl(QVideoRendererControl_iid)) {
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if (QVideoRendererControl *rendererControl = qobject_cast<QVideoRendererControl *>(control)) {
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rendererBackend = new QRendererVideoWidgetBackend(service, rendererControl, q_func());
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currentBackend = rendererBackend;
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setCurrentControl(rendererBackend);
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return true;
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}
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service->releaseControl(control);
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}
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return false;
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}
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void QVideoWidgetPrivate::_q_serviceDestroyed()
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{
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if (widgetBackend)
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delete q_func()->layout();
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delete widgetBackend;
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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 QtMultimediaWidgets
|
|
|
|
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 multimedia-snippets/video.cpp Video widget
|
|
|
|
\b {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.
|
|
*/
|
|
|
|
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);
|
|
|
|
Qt::WindowFlags flags = windowFlags();
|
|
|
|
if (fullScreen) {
|
|
d->nonFullScreenFlags = flags & (Qt::Window | Qt::SubWindow);
|
|
flags |= Qt::Window;
|
|
flags &= ~Qt::SubWindow;
|
|
setWindowFlags(flags);
|
|
|
|
showFullScreen();
|
|
} else {
|
|
flags &= ~(Qt::Window | Qt::SubWindow); //clear the flags...
|
|
flags |= d->nonFullScreenFlags; //then we reset the flags (window and subwindow)
|
|
setWindowFlags(flags);
|
|
|
|
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
|
|
Current event \a event.
|
|
Returns the value of the baseclass QWidget::event(QEvent *event) function.
|
|
*/
|
|
bool QVideoWidget::event(QEvent *event)
|
|
{
|
|
Q_D(QVideoWidget);
|
|
|
|
if (event->type() == QEvent::WindowStateChange) {
|
|
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)
|
|
emit fullScreenChanged(d->wasFullScreen = false);
|
|
}
|
|
}
|
|
return QWidget::event(event);
|
|
}
|
|
|
|
/*!
|
|
\reimp
|
|
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();
|
|
}
|
|
|
|
/*!
|
|
\reimp
|
|
Handles the hide \a event.
|
|
*/
|
|
void QVideoWidget::hideEvent(QHideEvent *event)
|
|
{
|
|
Q_D(QVideoWidget);
|
|
|
|
if (d->currentBackend)
|
|
d->currentBackend->hideEvent(event);
|
|
|
|
QWidget::hideEvent(event);
|
|
}
|
|
|
|
/*!
|
|
\reimp
|
|
Handles the resize \a event.
|
|
*/
|
|
void QVideoWidget::resizeEvent(QResizeEvent *event)
|
|
{
|
|
Q_D(QVideoWidget);
|
|
|
|
QWidget::resizeEvent(event);
|
|
|
|
if (d->currentBackend)
|
|
d->currentBackend->resizeEvent(event);
|
|
}
|
|
|
|
/*!
|
|
\reimp
|
|
Handles the move \a event.
|
|
*/
|
|
void QVideoWidget::moveEvent(QMoveEvent *event)
|
|
{
|
|
Q_D(QVideoWidget);
|
|
|
|
if (d->currentBackend)
|
|
d->currentBackend->moveEvent(event);
|
|
}
|
|
|
|
/*!
|
|
\reimp
|
|
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());
|
|
}
|
|
}
|
|
|
|
|
|
#if defined(Q_WS_WIN)
|
|
/*!
|
|
\internal
|
|
*/
|
|
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
|
|
|