cxVtkHelperClasses.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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#include "cxVtkHelperClasses.h"

#include <vtkSphereSource.h>
#include <vtkLineSource.h>
#include <vtkPolyDataMapper2D.h>
#include <vtkProperty2D.h>
#include <vtkTextMapper.h>
#include <vtkTextProperty.h>
#include <vtkAxesActor.h>
#include <vtkCaptionActor2D.h>
#include <vtkMatrix4x4.h>
#include <vtkRenderer.h>
#include <vtkCursor2D.h>
#include <vtkLeaderActor2D.h>
#include "cxTypeConversions.h"
#include <vtkProperty.h>
#include "cxBoundingBox3D.h"
#include "cxLogger.h"

#include "vtkOverrideInformationCollection.h"
#include "vtkObjectFactory.h"

// --------------------------------------------------------
namespace cx
{

Vector3D getColorAsVector3D(QColor color)
{
        Vector3D retval(color.redF(), color.greenF(), color.blueF());
        return retval;
}


RGBColor::RGBColor() {}

RGBColor::RGBColor(const RGBColor& t)
{
        for (unsigned i=0; i<size(); ++i)
                elems[i] = t.elems[i];
}

RGBColor& RGBColor::operator=(const RGBColor& t)
{
        if (this!=&t)
        {
                for (unsigned i=0; i<size(); ++i)
                        elems[i] = t.elems[i];
        }
        return *this;
}

RGBColor& RGBColor::operator=(const QColor& t)
{
        elems[0] = t.redF();
        elems[1] = t.greenF();
        elems[2] = t.blueF();
        return *this;
}

RGBColor::RGBColor(QColor c)
{
        elems[0] = c.redF();
        elems[1] = c.greenF();
        elems[2] = c.blueF();
}

RGBColor::RGBColor(double r, double g, double b)
{
        elems[0] = r;
        elems[1] = g;
        elems[2] = b;
}

RGBColor::RGBColor(const double* rgb)
{
        elems[0] = rgb[0];
        elems[1] = rgb[1];
        elems[2] = rgb[2];
}


// --------------------------------------------------------
// OFFSEET POINT CLASS
// --------------------------------------------------------


OffsetPoint::OffsetPoint( vtkRendererPtr renderer )
{
        mRenderer = renderer;
        source = vtkSphereSourcePtr::New() ;
        source->SetRadius( 4);

        mapper = vtkPolyDataMapper2DPtr::New() ;
        mapper->SetInputConnection(source->GetOutputPort() );

        actor = vtkActor2DPtr::New();
        actor->SetMapper(mapper);
        mRenderer->AddActor(actor);
}

OffsetPoint::~OffsetPoint()
{
        mRenderer->RemoveActor(actor);
}

void OffsetPoint::setRadius(int radius)
{
        source->SetRadius(radius);
}

void OffsetPoint::setValue(Vector3D point, RGBColor color)
{
        actor->GetProperty()->SetColor(color.begin());
        actor->SetPosition(point.begin());
}

void OffsetPoint::setValue(Vector3D point, Vector3D color)
{
        actor->GetProperty()->SetColor(color.begin());
        actor->SetPosition(point.begin());
}

void OffsetPoint::update( const Vector3D& position )
{
        Vector3D p = position;
        actor->SetPosition ( p.begin() );
}

vtkActor2DPtr OffsetPoint::getActor()
{
        return actor;
}


//---------------------------------------------------------//
// LINESEGMENT CLASS
//---------------------------------------------------------//


LineSegment:: LineSegment(vtkRendererPtr renderer)
{
        mRenderer = renderer;
        source = vtkLineSourcePtr::New();
        mapper2d = vtkPolyDataMapper2DPtr::New();
        actor2d = vtkActor2DPtr::New();
}

LineSegment::~LineSegment()
{
        mRenderer->RemoveActor(actor2d);
}

void LineSegment::setPoints(Vector3D point1, Vector3D point2, RGBColor color, int stipplePattern)
{
        source->SetPoint1(point1.begin());
        source->SetPoint2(point2.begin());
        mapper2d->SetInputConnection(source->GetOutputPort());
        actor2d->SetMapper(mapper2d);
        actor2d->GetProperty()->SetColor(color.begin());
        actor2d->GetProperty()->SetLineStipplePattern(stipplePattern);
        mRenderer->AddActor(actor2d);
}

void LineSegment::setResolution(int res)
{
        source->SetResolution(res);
}

void LineSegment::setWidth(float width)
{
        actor2d->GetProperty()->SetLineWidth(width);
}

void LineSegment::updatePosition(Vector3D point1, Vector3D point2)
{
        source->SetPoint1(point1.begin());
        source->SetPoint2(point2.begin());
}

void LineSegment::setColor(RGBColor color)
{
        actor2d->GetProperty()->SetColor(color.begin());
}

void LineSegment::setPattern(int stipplePattern)
{
        actor2d->GetProperty()->SetLineStipplePattern(stipplePattern);
}

vtkActor2DPtr LineSegment::getActor()
{
        return actor2d;
}

// --------------------------------------------------------
// CROSS HAIR CLASS
// --------------------------------------------------------

CrossHair2D::CrossHair2D( vtkRendererPtr renderer )
{
        mRenderer = renderer;
        mCursor2D = vtkCursor2DPtr::New();
        mapper = vtkPolyDataMapper2DPtr::New();
        mapper->SetInputConnection ( mCursor2D->GetOutputPort() );

        actor = vtkActor2DPtr::New();
        actor->SetMapper ( mapper );
        mRenderer->AddActor ( actor );
}

CrossHair2D::~CrossHair2D( )
{
        mRenderer->RemoveActor(actor);
}

void CrossHair2D::setValue(const Vector3D& focalPoint, int width, int height, double bordarOffset, const RGBColor& color )
{
        RGBColor c = color;
        Vector3D p = focalPoint;
        bordarOffset = 0.0;
        mCursor2D->SetModelBounds ( bordarOffset, width - bordarOffset, bordarOffset, height - bordarOffset, 0.0, 0.0 );
        mCursor2D->SetFocalPoint ( p[0]/2, p[1]/2, 0.0 );
        mCursor2D->SetRadius ( 5 );
        mCursor2D->AllOff();
        mCursor2D->AxesOn();
        mCursor2D->PointOn();
        mCursor2D->OutlineOff();
        actor->GetProperty()-> SetColor ( c.begin() );
}

void CrossHair2D::updateRegCross( const Vector3D& crossPos )
{
        Vector3D cp = crossPos;
        if ( mCursor2D )
        {
                mCursor2D->SetModelBounds( cp[0]-50, cp[0]+50, cp[1]-50, cp[1]+50, 0.0, 0.0 );
                mCursor2D->SetFocalPoint ( cp.begin() );
                mCursor2D->Update();
        }
}
void CrossHair2D::update( const Vector3D& crossPos, const DoubleBoundingBox3D& vp)
{
        Vector3D cp = crossPos;
        cp[2] = 0.0; // make it fit inside the z bounds.

        DoubleBoundingBox3D bb = vp;
        if (!bb.contains(cp))
        {
                mCursor2D->AllOff();
        }
        else
        {
                mCursor2D->AllOff();
                mCursor2D->AxesOn();
                mCursor2D->PointOn();
                mCursor2D->OutlineOff();
        }

        if ( mCursor2D )
        {
                mCursor2D->SetFocalPoint ( cp.begin() );
                mCursor2D->Update();
        }
        if (mapper)
        {
                //mapper->Update();
        }
}

vtkActor2DPtr  CrossHair2D::getActor()
{
        return actor;
}

// --------------------------------------------------------
// TEXT DISPLAY CLASS
// --------------------------------------------------------
TextDisplay::TextDisplay( const QString& text, const QColor &color, int fontsize )
{
        this->text = text;
//      Vector3D c = color;
//      this->forceUseVtkTextMapper();
        mapper = vtkTextMapperPtr::New();
        mapper->SetInput( cstring_cast(text) );
        this->setColor(color);
        mapper->GetTextProperty()->SetFontSize( fontsize );

        actor= vtkActor2DPtr::New();
        actor->SetMapper( mapper );
        maxWidth = 0;
}

void TextDisplay::forceUseVtkTextMapper()
{
        //Force the use of vtkTextMapper instead of vtkOpenGLFreeTypeTextMapper
        //Copied from TestFreeTypeTextMapper.cxx

        // Remove any override to the class to ensure that the actual vtkTextMapper
        // class is being tested:
        vtkNew<vtkOverrideInformationCollection> overrides;
        vtkObjectFactory::GetOverrideInformation("vtkTextMapper",
                                                                                         overrides.GetPointer());
        overrides->InitTraversal();
        while (vtkOverrideInformation *override = overrides->GetNextItem())
        {
                if (vtkObjectFactory *factory = override->GetObjectFactory())
                {
                        vtkObjectFactory::UnRegisterFactory(factory);
                }
        }
        verifyVtkTextMapper();
}

void TextDisplay::verifyVtkTextMapper()
{
        vtkNew<vtkTextMapper> nameChecker;
        if (vtkStdString(nameChecker->GetClassName()) != "vtkTextMapper")
        {
                reportError("Needed a vtkTextMapper instance, got " + QString(nameChecker->GetClassName()));
        }
}

void TextDisplay::setColor(QColor color)
{
        mapper->GetTextProperty()->SetColor(getColorAsVector3D(color).begin() );
}

void TextDisplay::setRenderer( vtkRendererPtr renderer )
{
        if (mRenderer)
                mRenderer->RemoveActor(actor);
        mRenderer = renderer;
        if (mRenderer)
                mRenderer->AddActor(actor);
}

TextDisplay::~TextDisplay()
{
        this->setRenderer(vtkRendererPtr());
}

void TextDisplay::setMaxWidth( int width, vtkViewport *vp)
{
        maxWidth = width;
        QStringList components = text.split("\n");
        for (QStringList::iterator it = components.begin(); it != components.end(); ++it)
        {
                this->verifyVtkTextMapper();
                vtkTextMapperPtr line = vtkTextMapperPtr::New();
                bool changed = false;
                line->SetInput( it->toLatin1().constData() );
                line->SetTextProperty(mapper->GetTextProperty());
                while((*it).length() > 0 && line->GetWidth(vp) > maxWidth)
                {
                        (*it).chop(1);
                        line->SetInput( QString("%1...").arg(*it).toLatin1().constData() );
                        changed = true;
                }
                if (changed)
                {
                        (*it).append("...");
                }
        }
        QString newString = components.join("\n");
        mapper->SetInput( newString.toLatin1().constData() );
}

int TextDisplay::getMaxWidth()
{
        return maxWidth;
}

int TextDisplay::getWidth( vtkViewport *vp)
{
        return mapper->GetWidth( vp );
}

void TextDisplay::setPosition( const Vector3D& pos )
{
        actor->SetPosition( pos[0], pos[1] );
}

void TextDisplay::setPosition( float x, float y  )
{
        actor->SetPosition( x, y );
}

void TextDisplay::updateText( const QString& text)
{
        QString input = text;
        //VTK has a bug which leaves a white square where the text was, if the text is replaced with no text.
        //E.g. the volume name when removing the last visible voulume. So we add a space instead of an empty text.
        if(input.isEmpty())
                input = " ";

        if (input == QString(mapper->GetInput()))
                return;

        mapper->SetInput( cstring_cast(input) );
        actor->Modified();
}

vtkTextProperty* TextDisplay::textProperty()
{
        return mapper->GetTextProperty();
}

vtkActor2DPtr TextDisplay::getActor()
{
        return actor;
}

void TextDisplay::setCentered()
{
        mapper->GetTextProperty()->SetJustificationToCentered() ;
        mapper->GetTextProperty()->SetVerticalJustificationToCentered() ;
}

// --------------------------------------------------------
// Axes3D CLASS
// --------------------------------------------------------

Axes3D::Axes3D(vtkRendererPtr renderer) : mRenderer(renderer)
{
        mAxes = vtkSmartPointer<vtkAxesActor>::New();

        setCaption(mAxes->GetXAxisCaptionActor2D(), "x", RGBColor(1,0,0));
        setCaption(mAxes->GetYAxisCaptionActor2D(), "y", RGBColor(0,1,0));
        setCaption(mAxes->GetZAxisCaptionActor2D(), "z", RGBColor(0,0,1));

        //SW_LOG("total len %s", string_cast(Vector3D(axes->GetTotalLength())).c_str());
        //SW_LOG("scale %s", string_cast(Vector3D(mAxes->GetScale())).c_str());

        setPosition(Transform3D::Identity());

        Vector3D len(mAxes->GetNormalizedShaftLength());
        //SW_LOG("len %s", string_cast(len).c_str());
        //len = Vector3D(0.1,0.1,0.1);
        mAxes->SetNormalizedShaftLength(len.begin());

        if (mRenderer)
                mRenderer->AddActor(mAxes);
}

void Axes3D::setPosition(const Transform3D& pos)
{
        double scale = 20;
        //axes->SetScale(Vector3D(scale,scale,scale).begin());
        Transform3D S = createTransformScale(Vector3D(scale,scale,scale));

        mAxes->SetUserMatrix((S*pos).getVtkMatrix());
}

Axes3D::~Axes3D()
{
        if (mRenderer)
                mRenderer->RemoveActor(mAxes);
}

vtkProp3DPtr Axes3D::getProp()
{
        return mAxes;
}

void Axes3D::setCaption(vtkCaptionActor2D* captionActor, const QString& caption, RGBColor color)
{
        captionActor->SetCaption(cstring_cast(caption));
        captionActor->GetCaptionTextProperty()->SetColor(color.begin());

        double fontsize = 0.02;
        captionActor->SetWidth(fontsize);
        captionActor->SetHeight(fontsize);
}

}//     namespace vm
// --------------------------------------------------------