cxViewWrapperVideo.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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   this list of conditions and the following disclaimer.

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   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

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#include "cxViewWrapperVideo.h"
//#include <vector>
#include <vtkCamera.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>

#include <QAction>
#include <QMenu>

#include "cxView.h"
#include "cxVideoRep.h"
#include "cxDisplayTextRep.h"

#include "cxTypeConversions.h"

#include "cxSettings.h"
#include "cxTrackingService.h"
#include "cxVideoService.h"
#include "cxVisServices.h"
#include "vtkRenderWindowInteractor.h"
#include "cxTool.h"
#include "cxVideoSource.h"

namespace cx
{

ViewWrapperVideo::ViewWrapperVideo(ViewPtr view, VisServicesPtr services) :
        ViewWrapper(services)
{
        mView = view;
        this->connectContextMenu(mView);

        // disable vtk interactor: this wrapper IS an interactor
        mView->getRenderWindow()->GetInteractor()->Disable();
        mView->getRenderer()->GetActiveCamera()->SetParallelProjection(true);
        double clipDepth = 1.0; // 1mm depth, i.e. all 3D props rendered outside this range is not shown.
        mView->getRenderer()->GetActiveCamera()->SetClippingRange(-clipDepth / 2.0, clipDepth / 2.0);

        connect(mServices->tracking().get(), &TrackingService::stateChanged, this, &ViewWrapperVideo::connectStream);
        connect(mServices->video().get(), SIGNAL(activeVideoSourceChanged()), this, SLOT(connectStream()));
        connect(mServices->tracking().get(), SIGNAL(activeToolChanged(QString)), this, SLOT(connectStream()));

        this->addReps();

        this->connectStream();

        this->updateView();
}

ViewWrapperVideo::~ViewWrapperVideo()
{
        if (mView)
                mView->removeReps();
}

ViewPtr ViewWrapperVideo::getView()
{
        return mView;
}

void ViewWrapperVideo::setViewGroup(ViewGroupDataPtr group)
{
        ViewWrapper::setViewGroup(group);
        this->connectStream();
}

void ViewWrapperVideo::appendToContextMenu(QMenu& contextMenu)
{
        QAction* showSectorAction = new QAction("Show Sector", &contextMenu);
        showSectorAction->setCheckable(true);
        if (mStreamRep)
                showSectorAction->setChecked(mStreamRep->getShowSector());
        connect(showSectorAction, SIGNAL(triggered(bool)), this, SLOT(showSectorActionSlot(bool)));

        contextMenu.addSeparator();

        QMenu* sourceMenu = new QMenu("Video Source", &contextMenu);
        std::vector<VideoSourcePtr> sources = mServices->video()->getVideoSources();
        this->addStreamAction("active", sourceMenu);
        for (unsigned i=0; i<sources.size(); ++i)
                this->addStreamAction(sources[i]->getUid(), sourceMenu);
        contextMenu.addMenu(sourceMenu);

        contextMenu.addAction(showSectorAction);
}

void ViewWrapperVideo::showSectorActionSlot(bool checked)
{
        mStreamRep->setShowSector(checked);
        settings()->setValue("showSectorInRTView", checked);
}

void ViewWrapperVideo::addStreamAction(QString uid, QMenu* contextMenu)
{
        QAction* action = new QAction(uid, contextMenu);

        VideoSourcePtr selected = this->getSourceFromService(mGroupData->getVideoSource());
        VideoSourcePtr current = this->getSourceFromService(uid);

        action->setData(QVariant(uid));
        action->setCheckable(true);
        if (uid=="active")
                action->setChecked(mGroupData->getVideoSource()=="active");
        else
                action->setChecked(selected && (selected==current));

        connect(action, SIGNAL(triggered()), this, SLOT(streamActionSlot()));
        contextMenu->addAction(action);
}

void ViewWrapperVideo::streamActionSlot()
{
        QAction* theAction = static_cast<QAction*>(sender());
        if(!theAction)
                return;
        if (!theAction->isChecked())
                return;

        QString uid = theAction->data().toString();
        mGroupData->setVideoSource(uid);
}

void ViewWrapperVideo::videoSourceChangedSlot(QString uid)
{
        this->connectStream();
}

void ViewWrapperVideo::connectStream()
{
        if (!mGroupData)
                return;
        VideoSourcePtr source = this->getSourceFromService(mGroupData->getVideoSource());

        QString uid;
        if (source)
                uid = source->getUid();

        ToolPtr newTool;
        ToolPtr tool = mServices->tracking()->getFirstProbe();
        if (tool && tool->getProbe())
        {
                if (tool->getProbe()->getAvailableVideoSources().count(uid))
                {
                        newTool = tool;
                        source = tool->getProbe()->getRTSource(uid);
                }
        }

        this->setupRep(source, newTool);
}

VideoSourcePtr ViewWrapperVideo::getSourceFromService(QString uid)
{
        if (uid=="active")
                return mServices->video()->getActiveVideoSource();

        std::vector<VideoSourcePtr> source = mServices->video()->getVideoSources();

        for (unsigned i=0; i< source.size(); ++i)
        {
                if (source[i]->getUid()==uid)
                        return source[i];
        }
        return VideoSourcePtr();
}

void ViewWrapperVideo::setupRep(VideoSourcePtr source, ToolPtr tool)
{
//      std::cout << "ViewWrapperVideo::setupRep() " << source.get() << "  " << source->getUid() << std::endl;

        //Don't do anything if source is the same
        if (( mSource == source )&&( tool==mTool ))
                return;
        if (mSource)
        {
                disconnect(mSource.get(), &VideoSource::newFrame, this, &ViewWrapperVideo::updateSlot);
        }
        mSource = source;
        if (mSource)
        {
                connect(mSource.get(), &VideoSource::newFrame, this, &ViewWrapperVideo::updateSlot);
        }

        if (!mSource)
                return;

        if (!mStreamRep)
        {
                mStreamRep.reset(new VideoFixedPlaneRep("rtrep", "rtrep"));
                mView->addRep(mStreamRep);
        }

        mStreamRep->setRealtimeStream(mSource);
        mStreamRep->setTool(tool);
        mStreamRep->setShowSector(settings()->value("showSectorInRTView").toBool());

//      report(
//                                      "Setup video rep with source="
//                                      + source->getName() + " and tool="
//                                      + (tool ? tool->getName() : "none"));
}

void ViewWrapperVideo::updateSlot()
{
        this->updateView();
}

QString ViewWrapperVideo::getDataDescription()
{
        if (mSource)
                return mSource->getName();
        return "not initialized";
}

QString ViewWrapperVideo::getViewDescription()
{
        return "RT";
}

//------------------------------------------------------------------------------
}