cxToolRep2D.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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#include "cxToolRep2D.h"

#include <vtkRenderer.h>
#include <vtkActor2D.h>
#include <vtkTextProperty.h>
#include <vtkPolyDataMapper.h>
#include <vtkPolyData.h>
#include <vtkMatrix4x4.h>
#include "cxSliceProxy.h"
#include "cxTool.h"
#include "cxView.h"

#include "cxTypeConversions.h"
#include "cxProbeSector.h"
#include "cxSpaceProvider.h"

namespace cx
{

ToolRep2D::ToolRep2D(SpaceProviderPtr spaceProvider) :
        RepImpl(),
        mSpaceProvider(spaceProvider),
        m_vpMs(Transform3D::Identity()),
        mBB_vp(0, 1, 0, 1, 0, 1),
        mTooltipPointColor(0.96, 0.87, 0.17),
        mOffsetPointColor(0.96, 0.87, 0.17),
        mTooltipLineColor(0.25, 0.87, 0.16),
        mOffsetLineColor(1.0, 0.8, 0.0),
        mStipplePattern(0xffff)
{
        mUseOffset = true;
        mUseCrosshair = false;
        mUseToolLine = true;
        mUseOffsetText = false;
        mMergeOffsetAndToolLine = false;
        mProbeSector.reset(new ProbeSector());
        mProbeSectorPolyDataMapper = vtkPolyDataMapperPtr::New();
        mProbeSectorActor = vtkActorPtr::New();
}

ToolRep2D::~ToolRep2D()
{
}

ToolRep2DPtr ToolRep2D::New(SpaceProviderPtr spaceProvider, const QString& uid)
{
        return wrap_new(new ToolRep2D(spaceProvider), uid);
}

QString ToolRep2D::getType() const
{
        return "vm::ToolRep2D";
}

double ToolRep2D::getOffset()
{
        if (mSlicer->getTool() && showOffset())
                return mSlicer->getTool()->getTooltipOffset();
        return 0.0;
}

void ToolRep2D::setViewportData(const Transform3D& vpMs, const DoubleBoundingBox3D& vp)
{
        m_vpMs = vpMs;
        mBB_vp = vp;

        crossHairResized();
        this->setModified();
}

void ToolRep2D::setSliceProxy(SliceProxyPtr slicer)
{
        if (mSlicer)
        {
                disconnect(mSlicer.get(), SIGNAL(transformChanged(Transform3D)), this, SLOT(sliceTransformChangedSlot(Transform3D)));
                disconnect(mSlicer.get(), SIGNAL(toolTransformAndTimestamp(Transform3D,double)), this, SLOT(toolTransformAndTimestampSlot(Transform3D,double)));
                disconnect(mSlicer.get(), SIGNAL(toolVisible(bool)), this, SLOT(toolVisibleSlot(bool)));
        }

        mSlicer = slicer;

        connect(mSlicer.get(), SIGNAL(transformChanged(Transform3D)), this, SLOT(sliceTransformChangedSlot(Transform3D)));
        connect(mSlicer.get(), SIGNAL(toolTransformAndTimestamp(Transform3D,double)), this, SLOT(toolTransformAndTimestampSlot(Transform3D,double)));
        connect(mSlicer.get(), SIGNAL(toolVisible(bool)), this, SLOT(toolVisibleSlot(bool)));
}

void ToolRep2D::setUseOffset(bool on)
{
        mUseOffset = on;
        setVisibility();
}

void ToolRep2D::setUseCrosshair(bool on)
{
        mUseCrosshair = on;
        setVisibility();
}

void ToolRep2D::setUseToolLine(bool on)
{
        mUseToolLine = on;
        setVisibility();
}

void ToolRep2D::setUseOffsetText(bool on)
{
        mUseOffsetText = on;
        setVisibility();
}

void ToolRep2D::setMergeOffsetAndToolLine(bool on)
{
        mMergeOffsetAndToolLine = on;
        setVisibility();
}

void ToolRep2D::addRepActorsToViewRenderer(ViewPtr view)
{
        createToolLine(view->getRenderer(), Vector3D(0,0,0));
        createCrossHair(view->getRenderer() );
        createOffsetText(view->getRenderer(), Vector3D(0,0,0));
        view->getRenderer()->AddActor(mProbeSectorActor);
        setVisibility();
        this->setModified();
}

void ToolRep2D::removeRepActorsFromViewRenderer(ViewPtr view)
{
        cursor.reset();
        center2Tool.reset();
        tool2Back.reset();
        centerPoint.reset();
        toolPoint.reset();
        distanceText.reset();
        view->getRenderer()->RemoveActor(mProbeSectorActor);
}

void ToolRep2D::sliceTransformChangedSlot(Transform3D sMr)
{
        this->setModified();
}

void ToolRep2D::toolTransformAndTimestampSlot(Transform3D prMt, double timestamp)
{
        this->setModified();
}

void ToolRep2D::toolVisibleSlot(bool visible)
{
        setVisibility();
        this->setModified();
}

void ToolRep2D::onModifiedStartRender()
{
        this->update();
}

void ToolRep2D::update()
{
        if (!mSlicer->getTool())
                return;

        Transform3D prMt = Transform3D::Identity();
        if (mSlicer->getTool())
        {
                prMt = mSlicer->getTool()->get_prMt();
        }
        Transform3D rMpr = mSpaceProvider->get_rMpr();
        Transform3D sMr = mSlicer->get_sMr();
        Transform3D sMt = sMr*rMpr*prMt;
        Transform3D vpMt = m_vpMs*sMt;

        // only show probe if aligned with the slice plane:
        double dotted = dot(Vector3D(0,0,1),sMt.vector(Vector3D(1,0,0)));
        bool aligned = similar(fabs(dotted), 1.0, 0.1);
        if (this->showProbe() && aligned)
        {
                Transform3D T = createTransformTranslate(Vector3D(0, 0, 0.1));

                mProbeSector->setData(mSlicer->getTool()->getProbe()->getProbeDefinition());
                Transform3D tMu = mProbeSector->get_tMu();
                mProbeSectorPolyDataMapper->SetInputData(mProbeSector->getSectorLinesOnly());
                if (mProbeSectorPolyDataMapper->GetInput())
                {
                        mProbeSectorActor->SetMapper(mProbeSectorPolyDataMapper);
                }
                mProbeSectorActor->SetUserMatrix((T*sMt*tMu).getVtkMatrix());
                mProbeSectorActor->SetVisibility(mSlicer->getTool()->getVisible());
        }
        else
        {
                mProbeSectorActor->SetVisibility(false);
        }

        Vector3D cross = vpMt.coord(getOffset() * Vector3D(0,0,1)); // zero position plus offset along z
        Vector3D tooltip = vpMt.coord(Vector3D(0,0,0)); // the zero position
        Vector3D toolback = vpMt.coord(Vector3D(0,0,-1000)); // a point 1m backwards in z

        if (cursor)
        {
                cursor->update(cross, mBB_vp); 
        }
        updateOffsetText();
        updateToolLine(cross, tooltip, toolback);
}

bool ToolRep2D::showProbe()
{
        return mSlicer->getTool() && mSlicer->getTool()->hasType(Tool::TOOL_US_PROBE);
}
bool ToolRep2D::showOffset()
{
        return mSlicer->getTool() && mUseOffset;
}

void ToolRep2D::setVisibility()
{
//      Logger::log("vm.log", "ToolRep2D::setVisibility(), offset=" + string_cast(showOffset()));
        bool hasTool = mSlicer->getTool() ? true : false;

        if (cursor)
                cursor->getActor()->SetVisibility(mUseCrosshair && hasTool);
        if (center2Tool)
                center2Tool->getActor()->SetVisibility(showOffset());
        if (tool2Back)
                tool2Back->getActor()->SetVisibility(mUseToolLine && hasTool);
        if (centerPoint)
                centerPoint->getActor()->SetVisibility(mUseToolLine && hasTool);
        if (centerPoint)
                centerPoint->getActor()->SetVisibility(showOffset() && !mMergeOffsetAndToolLine);
        if (distanceText)
                distanceText->getActor()->SetVisibility(mUseOffsetText && showOffset() && !mMergeOffsetAndToolLine);
}

void ToolRep2D::createCrossHair(vtkRendererPtr renderer)
{
        //Logger::log("vm.log", "<"+string_cast(__FUNCTION__)+">"+" new " );
        cursor.reset( new CrossHair2D(renderer) ) ;
        crossHairResized();
}

void ToolRep2D::crossHairResized()
{
        if (cursor)
        {
                double bordarOffset = 30.0;
                RGBColor color(1.0, 0.8, 0.0);
                Vector3D focalPoint(0.0,0.0,0.0);
                //Logger::log("tool.log", "("+string_cast(__FUNCTION__)+")"+" mCross"+string_cast(cross));
                //cursor->setValue( focalPoint, mBB_vp.range()[0], mBB_vp.range()[1], bordarOffset, color  );
                cursor->setValue( focalPoint, int(mBB_vp.range()[0]), int(mBB_vp.range()[1]), bordarOffset, color  );
        }
}

void ToolRep2D::createToolLine(vtkRendererPtr renderer, const Vector3D& centerPos )
{
        // line from tooltip to offset point
        center2Tool.reset(new LineSegment(renderer));
        center2Tool->setPoints(centerPos, Vector3D(0.0, 0.0, 0.0), mOffsetLineColor, mStipplePattern);
        center2Tool->setWidth(2);

        // line from back infinity to tooltip
        tool2Back.reset(new LineSegment(renderer));
        tool2Back->setPoints(Vector3D(0.0, 0.0, 0.0), Vector3D(0.0, 0.0, 0.0), mTooltipLineColor);
        tool2Back->setWidth(2);

        // Add dot at offset point
        centerPoint.reset(new OffsetPoint(renderer));
        centerPoint->setValue(centerPos, mOffsetPointColor);
        centerPoint->setRadius(4);
        centerPoint->getActor()->VisibilityOff();

        // Add dot at tooltip point
        toolPoint.reset(new OffsetPoint(renderer));
        toolPoint->setValue(Vector3D(0.0, 0.0, 0.0), mTooltipPointColor);
        toolPoint->setRadius(3);
}

void ToolRep2D::createOffsetText(vtkRendererPtr renderer, const Vector3D& pos )
{
        QColor color = QColor::fromRgbF(0.7372, 0.815, 0.6039);
        distanceText.reset( new TextDisplay( "---", color, 18) );
        distanceText->getActor()->GetPositionCoordinate()->SetCoordinateSystemToNormalizedViewport();
        distanceText->textProperty()->SetJustificationToRight();
        distanceText->setPosition(Vector3D(0.95, 0.95, 0.0));
        renderer->AddActor( distanceText->getActor() );
        updateOffsetText();
}

void ToolRep2D::updateToolLine(const Vector3D& crossPos, const Vector3D& toolTipPos, const Vector3D toolTipBackPos)
{
        if (!center2Tool || !tool2Back || !centerPoint || !toolPoint)
                return;

        if (mMergeOffsetAndToolLine)    // for ACS only
        {
                // Make entire line look like an offset line, since tooltip point will become projected
                // into the planes set by the offset position, which may be seen as navigation error.
                center2Tool->getActor()->SetVisibility(false);
                tool2Back->updatePosition(crossPos, toolTipBackPos);
                if (getOffset() > 0.01)
                {
                        toolPoint->getActor()->SetVisibility(false);
                        centerPoint->getActor()->SetVisibility(true);
                        tool2Back->setColor(mOffsetLineColor);
                        tool2Back->setPattern(mStipplePattern);
                }
                else
                {
                        toolPoint->getActor()->SetVisibility(true);
                        centerPoint->getActor()->SetVisibility(false);
                        tool2Back->setColor(mTooltipLineColor);
                        tool2Back->setPattern(0xffff);
                }
        }
        else
        {
                center2Tool->updatePosition(crossPos, toolTipPos);
                tool2Back->updatePosition(toolTipPos, toolTipBackPos);
                if (getOffset() > 0.01)
                {
                        centerPoint->getActor()->SetVisibility(true);
                }
                else
                {
                        centerPoint->getActor()->SetVisibility(false);
                }
        }
        centerPoint->update(crossPos);
        toolPoint->update(toolTipPos);
}

void ToolRep2D::updateOffsetText()
{
        if (!distanceText)
        {
                return;
        }
        if (getOffset() > 2.0 && mUseOffsetText && showOffset())
        {
                distanceText->updateText("Offset: " + QString::number(getOffset(), 'g', 3) + " mm");
                distanceText->getActor()->VisibilityOn();
        }
        else
        {
                distanceText->getActor()->VisibilityOff(); // doesnt work...
                distanceText->updateText( "" ); // does work...
        }
}

} // namespace vm