cxRegistrationWidget.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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modification, are permitted provided that the following conditions are met:

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   this list of conditions and the following disclaimer.

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   and/or other materials provided with the distribution.

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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 "cxRegistrationWidget.h"
#include <boost/bind.hpp>
#include <boost/function.hpp>
#include <QLabel>
#include <QVBoxLayout>
#include <QGroupBox>
#include <QStackedWidget>
#include <QComboBox>
#include <QStringList>

#include "cxTypeConversions.h"
#include "cxLogger.h"
#include "cxRegistrationProperties.h"
#include "cxLabeledComboBoxWidget.h"
#include "cxRegistrationService.h"
#include "cxPatientModelService.h"
#include "cxStringProperty.h"
#include "cxProfile.h"

namespace cx
{

RegistrationWidget::RegistrationWidget(ctkPluginContext *pluginContext, QWidget* parent) :
        mPluginContext(pluginContext),
        QTabWidget(parent),
        mVerticalLayout(new QVBoxLayout(this)),
        mOptions(profile()->getXmlSettings().descend("RegistrationWidget"))
{
        this->setObjectName("RegistrationWidget");
        this->setWindowTitle("Registration");
        this->setWhatsThis(this->defaultWhatsThis());

        connect(this, &QTabWidget::currentChanged, this, &RegistrationWidget::onCurrentChanged);
        this->initRegistrationTypesWidgets();
        this->initServiceListener();
}

RegistrationWidget::~RegistrationWidget()
{
}

void RegistrationWidget::initRegistrationTypesWidgets()
{
        mRegistrationTypes << "ImageToPatient" << "ImageToImage" << "ImageTransform";

        mTypeSelector = StringProperty::initialize("RegistrationTypes",
                                                                                                         "Registration Types",
                                                                                                         "Select registration type",
                                                                                                         "",
                                                                                                         mRegistrationTypes,
                                                                                                         mOptions.getElement());
        this->blockSignals(true); // we dont want the onCurrentChanged() to be called while constructing

        for(int i = 0; i < mRegistrationTypes.count(); ++i)
        {
                QWidget *widget = new QWidget(this);
                QStackedWidget *registrationTypeWidget = new QStackedWidget(widget);
                mRegistrationTypeMap[mRegistrationTypes[i]] = registrationTypeWidget;

                QVBoxLayout *layoutV = new QVBoxLayout(widget);
//              layoutV->setMargin(0);

                StringPropertyPtr methodSelector = StringProperty::initialize(mRegistrationTypes[i],
                                                                                                                                                                  "Method",
                                                                                                                                                                  "Select registration method",
                                                                                                                                                                  "",
                                                                                                                                                                  QStringList(),
                                                                                                                                                                  mOptions.getElement());
                mMethodsSelectorMap[mRegistrationTypes[i]] = methodSelector;
                boost::function<void()> f = boost::bind(&RegistrationWidget::indexChanged, this, mRegistrationTypes[i]);
                connect(methodSelector.get(), &StringProperty::valueWasSet, f);

                layoutV->addWidget(new LabeledComboBoxWidget(this, methodSelector));
                layoutV->addWidget(registrationTypeWidget);

                mVerticalLayout->addWidget(widget);
                this->addTab(widget, mRegistrationTypes[i]);

                if (mTypeSelector->getValue() == mRegistrationTypes[i])
                        this->setCurrentIndex(i);
        }

        this->blockSignals(false);
}

void RegistrationWidget::onCurrentChanged(int index)
{
        if (index<0)
                return;
        mTypeSelector->setValue(mRegistrationTypes[index]);
}

void RegistrationWidget::indexChanged(QString registrationType)
{
        StringPropertyPtr methodSelector = mMethodsSelectorMap[registrationType];
        QStackedWidget *stackedWidget = mRegistrationTypeMap[registrationType];
        this->selectStackWidget(methodSelector, stackedWidget);
}

void RegistrationWidget::selectStackWidget(StringPropertyPtr methodSelector, QStackedWidget *stackedWidget)
{
        QString method = methodSelector->getValue();
        int pos = methodSelector->getValueRange().indexOf(method);
        stackedWidget->setCurrentIndex(pos);
}

void RegistrationWidget::initServiceListener()
{
        mServiceListener.reset(new ServiceTrackerListener<RegistrationMethodService>(
                                                           mPluginContext,
                                                           boost::bind(&RegistrationWidget::onServiceAdded, this, _1),
                                                           boost::function<void (RegistrationMethodService*)>(),
                                                           boost::bind(&RegistrationWidget::onServiceRemoved, this, _1)
                                                           ));
        mServiceListener->open();
}

void RegistrationWidget::onServiceAdded(RegistrationMethodService* service)
{
        if(!this->knownType(service->getRegistrationType()))
                return;

        StringPropertyPtr methodSelector = mMethodsSelectorMap[service->getRegistrationType()];
        QStackedWidget *stackedWidget = mRegistrationTypeMap[service->getRegistrationType()];

        stackedWidget->addWidget(service->createWidget());
        QStringList values = methodSelector->getValueRange();
        values << service->getRegistrationMethod();
        methodSelector->setValueRange(values);

        // initialize if not set
        if (methodSelector->getValue().isEmpty())
        {
                methodSelector->setValue(service->getRegistrationMethod());
        }

        if (methodSelector->getValue() == service->getRegistrationMethod())
                this->selectStackWidget(methodSelector, stackedWidget);
}

bool RegistrationWidget::knownType(QString registrationType)
{
        if(!mRegistrationTypes.contains(registrationType))
        {
                reportError("Unknown registrationType : " + registrationType);
                return false;
        }
        return true;
}

void RegistrationWidget::onServiceRemoved(RegistrationMethodService *service)
{
        QStackedWidget *stackedWidget = mRegistrationTypeMap[service->getRegistrationType()];
        this->removeWidgetFromStackedWidget(service->getWidgetName(), stackedWidget);

        StringPropertyPtr comboBox = mMethodsSelectorMap[service->getRegistrationType()];
        QStringList values = comboBox->getValueRange();
        if (!values.removeOne(service->getRegistrationMethod()))
                reportWarning("RegistrationWidget::onServiceRemoved: Cannot find and remove service from combobox: "+ service->getRegistrationMethod());
        comboBox->setValueRange(values);
}

void RegistrationWidget::removeWidgetFromStackedWidget(QString widgetName, QStackedWidget *stackedWidget)
{
        for(int i = 0; i < stackedWidget->count(); ++i)
        {
                QWidget* widget = stackedWidget->widget(i);
                if(widget->objectName() == widgetName)
                {
                        stackedWidget->removeWidget(widget);
                        delete widget;
                }
        }
}

QString RegistrationWidget::defaultWhatsThis() const
{
  return "<html>"
      "<h3>Example plugin.</h3>"
          "<p>Collection of all registration methods</p>"
      "</html>";
}

} /* namespace cx */