cxVideoRep.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
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/*
 * sscRT2DRep.cpp
 *
 *  Created on: Oct 31, 2010
 *      Author: christiana
 */
#include "cxVideoRep.h"

#include "boost/bind.hpp"

#include <vtkRenderer.h>
#include <vtkActor2D.h>
#include <vtkActor.h>
#include <vtkCamera.h>

#include "cxView.h"
#include "cxTool.h"
#include "cxVideoSourceGraphics.h"
#include "cxVideoSource.h"
#include "cxViewportListener.h"

namespace cx
{

VideoFixedPlaneRep::VideoFixedPlaneRep(const QString& uid, const QString& name) :
        RepImpl(uid, name)
{
        SpaceProviderPtr nullProvider;

        mRTGraphics.reset(new VideoSourceGraphics(nullProvider));
        connect(mRTGraphics.get(), &VideoSourceGraphics::newData, this, &VideoFixedPlaneRep::newDataSlot);
        mRTGraphics->setShowInToolSpace(false);
        mRTGraphics->setClipToSector(false);

        mInfoText.reset(new TextDisplay("", QColor::fromRgbF(1.0, 0.8, 0.0), 16));
        mInfoText->getActor()->GetPositionCoordinate()->SetCoordinateSystemToNormalizedViewport();
        mInfoText->setCentered();
        mInfoText->setPosition(0.5, 0.05);

        mStatusText.reset(new TextDisplay("", QColor::fromRgbF(1.0, 0.8, 0.0), 20));
        mStatusText->getActor()->GetPositionCoordinate()->SetCoordinateSystemToNormalizedViewport();
        mStatusText->setCentered();
        mStatusText->setPosition(0.5, 0.5);
        mStatusText->updateText("Not Connected");

        mOrientationVText.reset(new TextDisplay("V", QColor::fromRgbF(1.0, 0.9, 0.0), 30));
        mOrientationVText->getActor()->GetPositionCoordinate()->SetCoordinateSystemToNormalizedViewport();
        mOrientationVText->setCentered();
        mOrientationVText->setPosition(0.05, 0.95);

        mProbeOrigin.reset(new GraphicalPolyData3D());
        mProbeOrigin->setColor(Vector3D(1, 165.0/255.0, 0)); // orange
        mProbeSector.reset(new GraphicalPolyData3D());
        mProbeSector->setColor(Vector3D(1, 165.0/255.0, 0)); // orange
        mProbeClipRect.reset(new GraphicalPolyData3D());
        mProbeClipRect->setColor(Vector3D(1, 0.9, 0)); // yellow

        mViewportListener.reset(new ViewportListener());
        mViewportListener->setCallback(boost::bind(&VideoFixedPlaneRep::setCamera, this));
}

VideoFixedPlaneRep::~VideoFixedPlaneRep()
{
}

void VideoFixedPlaneRep::setShowSector(bool on)
{
        mShowSector = on;
        this->updateSector();
}

bool VideoFixedPlaneRep::getShowSector() const
{
        return mShowSector;
}

void VideoFixedPlaneRep::updateSector()
{
        bool show = mTool && this->getShowSector() && mTool->getProbe()->getProbeDefinition().getType()!=ProbeDefinition::tNONE;

        mProbeOrigin->getActor()->SetVisibility(show);
        mProbeSector->getActor()->SetVisibility(show);
        mProbeClipRect->getActor()->SetVisibility(show);
        if (!show)
                return;

        mProbeDefinition.setData(mTool->getProbe()->getProbeDefinition());

        mProbeOrigin->setData(mProbeDefinition.getOriginPolyData());
        mProbeSector->setData(mProbeDefinition.getSectorSectorOnlyLinesOnly());
        mProbeClipRect->setData(mProbeDefinition.getClipRectLinesOnly());
}

void VideoFixedPlaneRep::setTool(ToolPtr tool)
{
        mRTGraphics->setTool(tool);
        mTool = tool;
}

void VideoFixedPlaneRep::setRealtimeStream(VideoSourcePtr data)
{
        mData = data;
        mRTGraphics->setRealtimeStream(data);
}

void VideoFixedPlaneRep::newDataSlot()
{
        if (!mData)
                return;

        mInfoText->updateText(mData->getInfoString());
        mStatusText->updateText(mData->getStatusString());
        mStatusText->getActor()->SetVisibility(!mData->validData());
        mOrientationVText->getActor()->SetVisibility(mData->validData());
        this->setCamera();
        this->updateSector();
}

void VideoFixedPlaneRep::setCamera()
{
        if (!mRenderer)
                return;
        mViewportListener->stopListen();
        vtkCamera* camera = mRenderer->GetActiveCamera();
        camera->ParallelProjectionOn();
        mRenderer->ResetCamera();

        DoubleBoundingBox3D bounds(mRTGraphics->getActor()->GetBounds());
        if (similar(bounds.range()[0], 0.0) || similar(bounds.range()[1], 0.0))
                return;

        double* vpRange = mRenderer->GetAspect();

        double vw = vpRange[0];
        double vh = vpRange[1];

        double w = bounds.range()[0];
        double h = bounds.range()[1];

        double scale = 1;
        double w_vp = vh * (w/h); // width of image in viewport space
        if (w_vp > vw) // if image too wide: reduce scale
                scale = w_vp/vw;

    //Set camera position and focus so that it looks at the video stream center
    double position[3];
    camera->GetPosition(position);
    position[0] = bounds.center()[0];
    position[1] = bounds.center()[1];
    camera->SetPosition(position);

    camera->GetFocalPoint(position);
    position[0] = bounds.center()[0];
    position[1] = bounds.center()[1];
    camera->SetFocalPoint(position);

        camera->SetParallelScale(h/2*scale*1.01); // exactly fill the viewport height
        mViewportListener->startListen(mRenderer);
}


void VideoFixedPlaneRep::addRepActorsToViewRenderer(ViewPtr view)
{
        mRenderer = view->getRenderer();
        mViewportListener->startListen(mRenderer);

        view->getRenderer()->AddActor(mRTGraphics->getActor());
        view->getRenderer()->AddActor(mInfoText->getActor());
        view->getRenderer()->AddActor(mStatusText->getActor());
        view->getRenderer()->AddActor(mOrientationVText->getActor());

        mProbeClipRect->setRenderer(view->getRenderer());
        mProbeOrigin->setRenderer(view->getRenderer());
        mProbeSector->setRenderer(view->getRenderer());
}

void VideoFixedPlaneRep::removeRepActorsFromViewRenderer(ViewPtr view)
{
        mRenderer = vtkRendererPtr();
        view->getRenderer()->RemoveActor(mRTGraphics->getActor());
        view->getRenderer()->RemoveActor(mInfoText->getActor());
        view->getRenderer()->RemoveActor(mStatusText->getActor());
        view->getRenderer()->RemoveActor(mOrientationVText->getActor());
        mProbeOrigin->setRenderer(NULL);
        mProbeSector->setRenderer(NULL);
        mProbeClipRect->setRenderer(NULL);

        mViewportListener->stopListen();
}

} // namespace cx