cxSpaceEditWidget.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 "cxSpaceEditWidget.h"
#include <iostream>
#include "cxTypeConversions.h"
#include "cxHelperWidgets.h"
#include "cxLogger.h"
#include "cxDefinitionStrings.h"

namespace cx
{

SpaceEditWidget::SpaceEditWidget(QWidget* parent, SpacePropertyBasePtr dataInterface,
        QGridLayout* gridLayout, int row) :
        BaseWidget(parent, "SpaceEditWidget", "SpaceEditWidget")
{
        this->setToolTip("Edit a space (coordinate system)");
        CX_ASSERT(dataInterface->getAllowOnlyValuesInRange()==true);

        this->setEnabled(dataInterface->getEnabled());

        mData = dataInterface;
        connect(mData.get(), SIGNAL(changed()), this, SLOT(setModified()));

        mLabel = new QLabel(this);
        mLabel->setText(mData->getDisplayName());

        mIdCombo = new QComboBox(this);
        connect(mIdCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(comboIndexChanged()));

        mRefCombo = new QComboBox(this);
        connect(mRefCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(comboIndexChanged()));

        if (gridLayout) // add to input gridlayout
        {
                gridLayout->addLayout(mergeWidgetsIntoHBoxLayout(mLabel, addDummyMargin(this)), row, 0);
                gridLayout->addWidget(mIdCombo, row, 1);
                gridLayout->addWidget(mRefCombo, row, 2);
        }
        else // add directly to this
        {
                mTopLayout = new QHBoxLayout;
                mTopLayout->setMargin(0);
                this->setLayout(mTopLayout);

                mTopLayout->addWidget(mLabel);
                mTopLayout->addWidget(mIdCombo, 1);
                mTopLayout->addWidget(mRefCombo, 2);
        }

        this->setModified();
}

void SpaceEditWidget::attemptSetValue(COORDINATE_SYSTEM id, QString ref)
{
        Space space(id, ref);

        QStringList refs = this->getAvailableSpaceRefs(space.mId);
        if (refs.isEmpty())
                space.mRefObject = "";
        else if (!refs.contains(space.mRefObject))
                space.mRefObject = refs[0];


        std::vector<Space> range = mData->getValueRange();
        if (!count(range.begin(), range.end(), space))
        {
                this->setModified(); // repaint with old data
                return;
        }

        mData->setValue(space);
}

void SpaceEditWidget::comboIndexChanged()
{
        this->attemptSetValue(COORDINATE_SYSTEM(mIdCombo->currentData().toInt()), mRefCombo->currentData().toString());
}

void SpaceEditWidget::showLabel(bool on)
{
        mLabel->setVisible(on);
}


void SpaceEditWidget::rebuildIdCombobox()
{
        mIdCombo->clear();

        Space currentValue = mData->getValue();
        std::vector<COORDINATE_SYSTEM> ids = this->getAvailableSpaceIds();

        int currentIndex = -1;
        for (int i = 0; i < ids.size(); ++i)
        {
                COORDINATE_SYSTEM id = ids[i];
                QString name = enum2string<COORDINATE_SYSTEM>(id);

                mIdCombo->addItem(name);
                mIdCombo->setItemData(i, QVariant::fromValue<int>(id));
                if (id == currentValue.mId)
                        currentIndex = i;
        }
        mIdCombo->setCurrentIndex(currentIndex);
}

std::vector<COORDINATE_SYSTEM> SpaceEditWidget::getAvailableSpaceIds()
{
        std::vector<COORDINATE_SYSTEM> retval;
        std::vector<Space> range = mData->getValueRange();

        for (unsigned i=0; i<range.size(); ++i)
        {
                if (!count(retval.begin(), retval.end(), range[i].mId))
                        retval.push_back(range[i].mId);
        }

        return retval;
}

void SpaceEditWidget::rebuildRefCombobox()
{
        mRefCombo->clear();

        Space currentValue = mData->getValue();
        QStringList refs = this->getAvailableSpaceRefs(currentValue.mId);

        int currentIndex = -1;
        for (int i = 0; i < refs.size(); ++i)
        {
                QString ref = refs[i];
                QString name = mData->convertRefObjectInternal2Display(ref);
                mRefCombo->addItem(name);
                mRefCombo->setItemData(i, ref);
                if (ref == currentValue.mRefObject)
                        currentIndex = i;
        }
        mRefCombo->setCurrentIndex(currentIndex);

        // Cannot set visibility inside a paint event.
        // Instead do it by placing a call in the queue.
        this->setRefComboVisibilityQueued();
}

void SpaceEditWidget::setRefComboVisibilityQueued()
{
        bool show = mRefCombo->count();

        if (mRefCombo->isVisible()==show)
                return;

        if (show)
                QMetaObject::invokeMethod(mRefCombo, "show", Qt::QueuedConnection);
        else
                QMetaObject::invokeMethod(mRefCombo, "hide", Qt::QueuedConnection);
}

QStringList SpaceEditWidget::getAvailableSpaceRefs(COORDINATE_SYSTEM id)
{
        QStringList retval;
        std::vector<Space> range = mData->getValueRange();

        for (unsigned i=0; i<range.size(); ++i)
        {
                if (range[i].mId == id)
                        retval.push_back(range[i].mRefObject);
        }
        retval.removeDuplicates();
        retval.removeAll("");

        return retval;
}

void SpaceEditWidget::prePaintEvent()
{
        mRefCombo->blockSignals(true);
        mIdCombo->blockSignals(true);
        mIdCombo->clear();
        mRefCombo->clear();

        this->setEnabled(mData->getEnabled());
        mLabel->setEnabled(mData->getEnabled());
        mIdCombo->setEnabled(mData->getEnabled());
        mRefCombo->setEnabled(mData->getEnabled());

        this->rebuildIdCombobox();
        this->rebuildRefCombobox();

        mIdCombo->setToolTip(QString("%1\nSet space type").arg(mData->getHelp()));
        mRefCombo->setToolTip(QString("%1\nSet space identifier").arg(mData->getHelp()));
        mLabel->setToolTip(mData->getHelp());

        mRefCombo->blockSignals(false);
        mIdCombo->blockSignals(false);
}

} // namespace cx