cxLayoutVideoSource.cpp

Go to the documentation of this file.

/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.
                 
Copyright (c) SINTEF Department of Medical Technology.
All rights reserved.
                 
CustusX is released under a BSD 3-Clause license.
                 
See Lisence.txt (https://github.com/SINTEFMedtek/CustusX/blob/master/License.txt) for details.
=========================================================================*/
#include "cxLayoutVideoSource.h"
#include "cxViewCollectionImageWriter.h"
#include "cxViewCollectionWidget.h"
#include "vtkImageData.h"
#include "cxLogger.h"
 
namespace cx
{
 
LayoutVideoSource::LayoutVideoSource(ViewCollectionWidget* widget) :
    mWidget(widget),
    mStreaming(false)
{
        CX_ASSERT(widget);
    connect(mWidget.data(), &ViewCollectionWidget::rendered, this, &LayoutVideoSource::onRendered);
}
 
QString LayoutVideoSource::getUid()
{
    return QString("LayoutVideoSource%1").arg(reinterpret_cast<long>(this));
}
 
QString LayoutVideoSource::getName()
{
    return QString("LayoutVideoSource");
}
 
double LayoutVideoSource::getTimestamp()
{
        return mTimestamp.toMSecsSinceEpoch();
}
 
TimeInfo LayoutVideoSource::getAdvancedTimeInfo()
{
        return TimeInfo(mTimestamp.toMSecsSinceEpoch());
}
 
void LayoutVideoSource::start()
{
    if (mStreaming)
        return;
 
    mStreaming = true;
    emit streaming(mStreaming);
}
 
void LayoutVideoSource::stop()
{
    if (!mStreaming)
        return;
 
    mGrabbed = vtkImageDataPtr();
    mStreaming = false;
    emit streaming(mStreaming);
}
 
bool LayoutVideoSource::validData() const
{
    return mStreaming;
}
 
bool LayoutVideoSource::isConnected() const
{
    return true;
}
 
bool LayoutVideoSource::isStreaming() const
{
    return mStreaming;
}
 
void LayoutVideoSource::onRendered()
{
    if (!mStreaming)
        return;
 
    mGrabbed = vtkImageDataPtr();
    mTimestamp = QDateTime::currentDateTime();
    emit newFrame();
}
 
vtkImageDataPtr LayoutVideoSource::getVtkImageData()
{
    if (!mStreaming)
        return vtkImageDataPtr();
 
    if (!mGrabbed)
    {
        ViewCollectionImageWriter grabber(mWidget);
        mGrabbed = grabber.grab();
    }
    return mGrabbed;
}
 
} // namespace cx