diff options
Diffstat (limited to 'src/plugins/directshow/camera/dsvideowidgetcontrol.cpp')
| -rw-r--r-- | src/plugins/directshow/camera/dsvideowidgetcontrol.cpp | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/src/plugins/directshow/camera/dsvideowidgetcontrol.cpp b/src/plugins/directshow/camera/dsvideowidgetcontrol.cpp new file mode 100644 index 000000000..8298c0275 --- /dev/null +++ b/src/plugins/directshow/camera/dsvideowidgetcontrol.cpp @@ -0,0 +1,250 @@ +/**************************************************************************** +** +** 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 <QtCore/qcoreevent.h> +#include <QtCore/qtimer.h> + +#include "DSVideoWidgetControl.h" +#include "dscamerasession.h" + +QT_BEGIN_NAMESPACE + +DSVideoWidgetSurface::DSVideoWidgetSurface(QLabel *pWidget, QObject *parent) +{ + widget = pWidget; + myPixmap = 0; +} + +QList<QVideoFrame::PixelFormat> DSVideoWidgetSurface::supportedPixelFormats( + QAbstractVideoBuffer::HandleType handleType) const +{ + if (handleType == QAbstractVideoBuffer::NoHandle) { + return QList<QVideoFrame::PixelFormat>() + << QVideoFrame::Format_RGB32 + << QVideoFrame::Format_RGB24; + } else { + return QList<QVideoFrame::PixelFormat>(); + } +} + + +bool DSVideoWidgetSurface::present(const QVideoFrame &frame) +{ + QVideoFrame myFrame = frame; + myFrame.map(QAbstractVideoBuffer::ReadOnly); + QImage image( + frame.bits(), + frame.width(), + frame.height(), + frame.bytesPerLine(), + imageFormat); + if (image.isNull()) + { + // Try to adapt + QImage image2( + frame.bits(), + frame.width(), + frame.height(), + frame.bytesPerLine(), + QImage::Format_RGB888); + image = image2; + } + myFrame.unmap(); + delete myPixmap; + myPixmap = new QPixmap(QPixmap::fromImage(image).scaled(widget->size())); + widget->setPixmap(*myPixmap); + widget->repaint(); + return true; +} + +void DSVideoWidgetSurface::setImageFormat(QImage::Format fmt) +{ + imageFormat = fmt; +} + +void DSVideoWidgetSurface::updateVideoRect() +{ +} + +void DSVideoWidgetSurface::paint(QPainter *painter) +{ +} + + +DSVideoWidgetControl::DSVideoWidgetControl(DSCameraSession* session, QObject *parent) : + m_session(session), QVideoWidgetControl(parent), + m_widget(new QLabel()), + m_fullScreen(false) +{ + m_widget->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding); + m_widget->setAlignment(Qt::AlignCenter); + m_widget->setAttribute(Qt::WA_NoSystemBackground, true); + + surface = new DSVideoWidgetSurface(m_widget); + + QPalette palette; + palette.setColor(QPalette::Background, Qt::black); + m_widget->setPalette(palette); + m_widget->setAutoFillBackground( true ); + + // Request QEvents + m_widget->installEventFilter(this); + m_windowId = m_widget->effectiveWinId(); + + surface->setImageFormat(QImage::Format_RGB888); + session->setSurface(surface); +} + +DSVideoWidgetControl::~DSVideoWidgetControl() +{ + delete m_widget; +} + +bool DSVideoWidgetControl::eventFilter(QObject *object, QEvent *e) +{ + if (object == m_widget) { + switch (e->type()) { + case QEvent::ParentChange: + case QEvent::WinIdChange: + case QEvent::Show: + m_windowId = m_widget->effectiveWinId(); + emit widgetUpdated(); + break; + case QEvent::Resize: + emit widgetResized(m_widget->size()); + break; + case QEvent::PolishRequest: + m_widget->ensurePolished(); + break; + + default: + // Do nothing + break; + } + } + return false; +} + +QWidget *DSVideoWidgetControl::videoWidget() +{ + return m_widget; +} + +Qt::AspectRatioMode DSVideoWidgetControl::aspectRatioMode() const +{ + return m_aspectRatioMode; +} + +void DSVideoWidgetControl::setAspectRatioMode(Qt::AspectRatioMode ratio) +{ + if (m_aspectRatioMode==ratio) { + return; + } + m_aspectRatioMode = ratio; + + if (m_aspectRatioMode == Qt::KeepAspectRatio) + m_widget->setScaledContents(false); + else { + m_widget->setScaledContents(true); + } +} + +bool DSVideoWidgetControl::isFullScreen() const +{ + return m_fullScreen; +} + +void DSVideoWidgetControl::setFullScreen(bool fullScreen) +{ + if (m_widget && !fullScreen && m_fullScreen) { + m_widget->showNormal(); + m_fullScreen = false; + } else if (m_widget && fullScreen) { + m_widget->showFullScreen(); + m_fullScreen = true; + } + + emit fullScreenChanged(fullScreen); +} + +int DSVideoWidgetControl::brightness() const +{ + return 0; +} + +void DSVideoWidgetControl::setBrightness(int brightness) +{ + Q_UNUSED(brightness); +} + +int DSVideoWidgetControl::contrast() const +{ + return 0; +} + +void DSVideoWidgetControl::setContrast(int contrast) +{ + Q_UNUSED(contrast); +} + +int DSVideoWidgetControl::hue() const +{ + return 0; +} + +void DSVideoWidgetControl::setHue(int hue) +{ + Q_UNUSED(hue); +} + +int DSVideoWidgetControl::saturation() const +{ + return 0; +} + +void DSVideoWidgetControl::setSaturation(int saturation) +{ + Q_UNUSED(saturation); +} + +QT_END_NAMESPACE + +// End of file |