cxSamplerWidget.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 "cxSamplerWidget.h"

#include "cxCoordinateSystemHelpers.h"
#include <vtkImageData.h>
#include "cxTrackingService.h"
#include "cxSpaceEditWidget.h"
#include "cxTypeConversions.h"
#include "cxSettings.h"
#include "cxImage.h"
#include "cxLegacySingletons.h"
#include "cxSpaceProvider.h"
#include "cxSpaceListener.h"
#include "cxPatientModelService.h"

namespace cx
{

SamplerWidget::SamplerWidget(QWidget* parent) :
  BaseWidget(parent, "SamplerWidget", "Point Sampler")
{
        mListener = spaceProvider()->createListener();
        mListener->setSpace(Space::reference());
//      mListener.reset(new CoordinateSystemListener(Space(csREF)));
        connect(mListener.get(), SIGNAL(changed()), this, SLOT(setModified()));

        mActiveTool = ActiveToolProxy::New(trackingService());
        connect(mActiveTool.get(), SIGNAL(activeToolChanged(const QString&)), this, SLOT(setModified()));
        connect(mActiveTool.get(), SIGNAL(toolTransformAndTimestamp(Transform3D, double)), SLOT(setModified()));
        connect(spaceProvider().get(), &SpaceProvider::spaceAddedOrRemoved, this, &SamplerWidget::spacesChangedSlot);

        mLayout = new QHBoxLayout(this);
        mLayout->setMargin(4);
        mLayout->setSpacing(4);

        mAdvancedAction = this->createAction(this,
                                             QIcon(":/icons/open_icon_library/system-run-5.png"),
                                             "Details",
                                             "Show Advanced options",
                                             SLOT(toggleAdvancedSlot()),
                                             mLayout,
                                             new CXSmallToolButton());

        mAdvancedWidget = new QWidget(this);
        mAdvancedLayout = new QHBoxLayout(mAdvancedWidget);
        mAdvancedLayout->setMargin(0);
        mLayout->addWidget(mAdvancedWidget);

        mSpaceSelector = SpaceProperty::initialize("selectSpace",
                                                                                          "Space",
                                                                                          "Select coordinate system to store position in.");
        mSpaceSelector->setSpaceProvider(spaceProvider());

        connect(mSpaceSelector.get(), &SpaceProperty::valueWasSet, this, &SamplerWidget::spacesChangedSlot);
        connect(mSpaceSelector.get(), &SpaceProperty::valueWasSet, this, &SamplerWidget::setModified);
        Space space = Space::fromString(settings()->value("sampler/Space", Space(csREF).toString()).toString());
        mSpaceSelector->setValue(space);
        SpaceEditWidget* spaceSelectorWidget = new SpaceEditWidget(this, mSpaceSelector);
        spaceSelectorWidget->showLabel(false);
        mAdvancedLayout->addWidget(spaceSelectorWidget);
        this->spacesChangedSlot();

        mCoordLineEdit = new QLineEdit(this);
        mCoordLineEdit->setStyleSheet("QLineEdit { width : 30ex; }"); // enough for "-xxx.x, -xxx.x, -xxx.x - xxxx" plus some slack
        mCoordLineEdit->setSizePolicy(QSizePolicy::Fixed,
                                  mCoordLineEdit->sizePolicy().verticalPolicy());
        mCoordLineEdit->setReadOnly(true);
    mLayout->addWidget(mCoordLineEdit);

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

SamplerWidget::~SamplerWidget()
{}

QString SamplerWidget::defaultWhatsThis() const
{
  return "<html>"
          "<h3>Utility for sampling the current tool point</h3>"
          "<p>Displays the current tool tip position in a selected coordinate system.</p>"
          "<p><i></i></p>"
          "</html>";
}

void SamplerWidget::toggleAdvancedSlot()
{
        settings()->setValue("sampler/ShowDetails", !settings()->value("sampler/ShowDetails", "true").toBool());
        mAdvancedWidget->setVisible(!mAdvancedWidget->isVisible());
        this->showAdvanced();
}

void SamplerWidget::showAdvanced()
{
        bool on = settings()->value("sampler/ShowDetails").toBool();
        mAdvancedWidget->setVisible(on);
}

void SamplerWidget::spacesChangedSlot()
{
        CoordinateSystem space = mSpaceSelector->getValue();
        settings()->setValue("sampler/Space", space.toString());

//      mSpaceSelector->setValueRange(spaceProvider()->getSpacesToPresentInGUI());
//      mSpaceSelector->setValue(space);
        mListener->setSpace(space);
}

void SamplerWidget::prePaintEvent()
{
        CoordinateSystem space = mSpaceSelector->getValue();
        Vector3D p = spaceProvider()->getActiveToolTipPoint(space, true);
        int w=1;
        QString coord = QString("%1, %2, %3").arg(p[0], w, 'f', 1).arg(p[1], w, 'f', 1).arg(p[2], w, 'f', 1);

        ImagePtr image = patientService()->getActiveImage();
        if (image)
        {
                Vector3D p = spaceProvider()->getActiveToolTipPoint(Space(csDATA_VOXEL,"active"), true);
                IntBoundingBox3D bb(Eigen::Vector3i(0,0,0),
                                         Eigen::Vector3i(image->getBaseVtkImageData()->GetDimensions())-Eigen::Vector3i(1,1,1));
                if (bb.contains(p.cast<int>()))
                {
                        double val = image->getBaseVtkImageData()->GetScalarComponentAsFloat(p[0], p[1], p[2], 0);
                        int intVal = val;
                        coord += QString(" I=%1").arg(intVal);
                }
        }

        mCoordLineEdit->setText(coord);
        mCoordLineEdit->setStatusTip(QString("Position of active tool tip in %1 space\n"
                                             "and the intensity of the active volume in that position").arg(space.toString()));
        mCoordLineEdit->setToolTip(mCoordLineEdit->statusTip());
}


} // namespace cx