cxMainWindow.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.
                 
Copyright (c) SINTEF Department of Medical Technology.
All rights reserved.
                 
CustusX is released under a BSD 3-Clause license.
                 
See Lisence.txt (https://github.com/SINTEFMedtek/CustusX/blob/master/License.txt) for details.
=========================================================================*/

#include "cxMainWindow.h"

#include <QtWidgets>
#include "boost/bind.hpp"

#include "cxConfig.h"
#include "cxDataLocations.h"
#include "cxLogicManager.h"
#include "cxSettings.h"
#include "cxPatientModelService.h"
#include "cxViewService.h"
#include "cxSessionStorageService.h"
#include "cxAudioImpl.h"
#include "cxLayoutInteractor.h"
#include "cxCameraControl.h"

#include "cxDynamicMainWindowWidgets.h"
#include "cxStatusBar.h"
#include "cxSecondaryMainWindow.h"
#include "cxSecondaryViewLayoutWindow.h"
#include "cxSamplerWidget.h"
#include "cxHelperWidgets.h"
#include "cxMainWindowActions.h"

#include "cxStreamPropertiesWidget.h"
#include "cxVideoConnectionWidget.h"
#include "cxToolManagerWidget.h"
#include "cxFrameTreeWidget.h"
#include "cxNavigationWidget.h"
#include "cxVolumePropertiesWidget.h"
#include "cxToolPropertiesWidget.h"
#include "cxPreferencesDialog.h"
#include "cxSlicePropertiesWidget.h"
#include "cxMeshInfoWidget.h"
#include "cxTrackPadWidget.h"
#include "cxConsoleWidget.h"
#include "cxMetricWidget.h"
#include "cxPlaybackWidget.h"
#include "cxEraserWidget.h"
#include "cxFiltersWidget.h"
#include "cxPluginFrameworkWidget.h"
#include "cxManageClippersWidget.h"
#include "cxBrowserWidget.h"
#include "cxActiveToolProxy.h"

namespace cx
{

MainWindow::MainWindow() :
        mFullScreenAction(NULL),
        mStandard3DViewActions(new QActionGroup(this)),
        mControlPanel(NULL),
        mDockWidgets(new DynamicMainWindowWidgets(this)),
        mActions(NULL)
{
        this->setObjectName("main_window");

        mServices = VisServices::create(logicManager()->getPluginContext());
        mLayoutInteractor.reset(new LayoutInteractor(mServices->view()));

        this->setCentralWidget(mServices->view()->createLayoutWidget(this, 0));

        mActions = new MainWindowActions(mServices, this);

        this->createActions();
        this->createMenus();
        this->createToolBars();
        this->setStatusBar(new StatusBar(mServices->tracking(), mServices->view(), mServices->video()));

        reporter()->setAudioSource(AudioPtr(new AudioImpl()));

        connect(mServices->state().get(), &StateService::applicationStateChanged, this, &MainWindow::onApplicationStateChangedSlot);
        connect(mServices->state().get(), &StateService::workflowStateChanged, this, &MainWindow::onWorkflowStateChangedSlot);
        connect(mServices->state().get(), &StateService::workflowStateAboutToChange, this, &MainWindow::saveDesktopSlot);

        this->updateWindowTitle();

        this->setTabPosition(Qt::AllDockWidgetAreas, QTabWidget::North);

        this->addAsDockWidget(new PlaybackWidget(mServices->tracking(), mServices->video(), mServices->patient(), this), "Browsing");
        this->addAsDockWidget(new VideoConnectionWidget(mServices, this), "Utility");
        this->addAsDockWidget(new EraserWidget(mServices->patient(), mServices->view(), this), "Properties");
        this->addAsDockWidget(new MetricWidget(mServices, this), "Utility");
        this->addAsDockWidget(new SlicePropertiesWidget(mServices->patient(), mServices->view(), this), "Properties");
        this->addAsDockWidget(new VolumePropertiesWidget(mServices, this), "Properties");
        this->addAsDockWidget(new ActiveMeshPropertiesWidget(mServices, this), "Properties");
        this->addAsDockWidget(new StreamPropertiesWidget(mServices->patient(), mServices->view(), this), "Properties");
        this->addAsDockWidget(new TrackPadWidget(mServices->view(), this), "Utility");
        this->addAsDockWidget(new ActiveToolPropertiesWidget(mServices->tracking(), mServices->spaceProvider(), this), "Properties");
        this->addAsDockWidget(new NavigationWidget(mServices->view(), mServices->tracking(), this), "Properties");
        this->addAsDockWidget(new ConsoleWidget(this, "console_widget", "Console"), "Utility");
        this->addAsDockWidget(new ConsoleWidget(this, "console_widget_2", "Extra Console"), "Utility");
//      this->addAsDockWidget(new ConsoleWidgetCollection(this, "ConsoleWidgets", "Consoles"), "Utility");
        this->addAsDockWidget(new FrameTreeWidget(mServices->patient(), this), "Browsing");
        this->addAsDockWidget(new ToolManagerWidget(mServices->tracking(), this), "Debugging");
        this->addAsDockWidget(new PluginFrameworkWidget(this), "Browsing");
    this->addAsDockWidget(new FiltersWidget(VisServices::create(logicManager()->getPluginContext()), this), "Algorithms");
        this->addAsDockWidget(new ClippingPropertiesWidget(mServices, this), "Properties");

        this->addAsDockWidget(new BrowserWidget(this, mServices), "Browsing");

        connect(mServices->patient().get(), &PatientModelService::patientChanged, this, &MainWindow::patientChangedSlot);
        connect(qApp, &QApplication::focusChanged, this, &MainWindow::focusChanged);

        this->setupGUIExtenders();

        // window menu must be created after all dock widgets are created
        QMenu* popupMenu = this->createPopupMenu();
        popupMenu->setTitle("Window");
        this->menuBar()->insertMenu(mHelpMenuAction, popupMenu);
        this->menuBar()->setVisible(settings()->value("Gui/showMenuBar").toBool());

        // show after window has been initialized
        QTimer::singleShot(0, this, SLOT(delayedShow()));
}

void MainWindow::delayedShow()
{
        // Restore saved window states
        // Must be done after all DockWidgets are created
        if (restoreGeometry(settings()->value("mainWindow/geometry").toByteArray()))
        {
                this->show();
        }
        else
        {
                this->showMaximized();
        }

        if (settings()->value("gui/fullscreen").toBool())
        {
                this->setWindowState(this->windowState() | Qt::WindowFullScreen);
        }
}

void MainWindow::changeEvent(QEvent * event)
{
        QMainWindow::changeEvent(event);

        if (event->type() == QEvent::WindowStateChange)
        {
                if (mFullScreenAction)
                        mFullScreenAction->setChecked(this->windowState() & Qt::WindowFullScreen);
        }
}

void MainWindow::setupGUIExtenders()
{
        mServiceListener.reset(new ServiceTrackerListener<GUIExtenderService>(
                                                           LogicManager::getInstance()->getPluginContext(),
                                                           boost::bind(&MainWindow::onGUIExtenderServiceAdded, this, _1),
                                                           boost::bind(&MainWindow::onGUIExtenderServiceModified, this, _1),
                                                           boost::bind(&MainWindow::onGUIExtenderServiceRemoved, this, _1)
                                                           ));
        mServiceListener->open();
}

void MainWindow::onGUIExtenderServiceAdded(GUIExtenderService* service)
{
        std::vector<GUIExtenderService::CategorizedWidget> widgets = service->createWidgets();
        for (unsigned j = 0; j < widgets.size(); ++j)
        {
                if(!widgets[j].mPlaceInSeparateWindow)
                        mDockWidgets->addAsDockWidget(widgets[j].mWidget, widgets[j].mCategory, service);
                else
                        this->createActionForWidgetInSeparateWindow(widgets[j].mWidget);
        }

        std::vector<QToolBar*> toolBars = service->createToolBars();
        for(unsigned j = 0; j < toolBars.size(); ++j)
        {
                mDockWidgets->registerToolBar(toolBars[j]);
        }
}

void MainWindow::onGUIExtenderServiceModified(GUIExtenderService* service)
{
}

void MainWindow::onGUIExtenderServiceRemoved(GUIExtenderService* service)
{
        mDockWidgets->owningServiceRemoved(service);
}

void MainWindow::dockWidgetVisibilityChanged(bool val)
{
        if (val)
                this->focusInsideDockWidget(sender());
}

void MainWindow::focusChanged(QWidget * old, QWidget * now)
{
        this->focusInsideDockWidget(now);
}

void MainWindow::focusInsideDockWidget(QObject *dockWidget)
{
        if (!dockWidget)
                return;

//      CX_LOG_CHANNEL_DEBUG("HELP_DB") << QString("    try mw::focus [%1](%2)")
//                                                                         .arg(dockWidget->objectName())
//                                                                         .arg(dockWidget->metaObject()->className());

        // focusing to docked widgets is required by the help system

        // Assume structure: QDockWidget->QScrollArea->QWidget,
        // as defined in MainWindow::addAsDockWidget()
        QDockWidget* dw = dynamic_cast<QDockWidget*>(dockWidget);
        if (!dw)
                return;
        if (dw->parent()!=this) // avoid events from other mainwindows
                return;
        QScrollArea* sa = dynamic_cast<QScrollArea*>(dw->widget());
        if (!sa)
                return;

        if (!sa->widget())
                return;

//      CX_LOG_CHANNEL_DEBUG("HELP_DB") << QString("    do mw::focus [%1](%2)")
//                                                                         .arg(sa->widget()->objectName())
//                                                                         .arg(sa->widget()->metaObject()->className());

        QTimer::singleShot(0, sa->widget(), SLOT(setFocus())); // avoid loops etc by send async event.
}

MainWindow::~MainWindow()
{
        mServices->view()->deactivateLayout();
        reporter()->setAudioSource(AudioPtr()); // important! QSound::play fires a thread, causes segfault during shutdown
        mServiceListener.reset();
}

QMenu* MainWindow::createPopupMenu()
{
        return mDockWidgets->createPopupMenu();
}

void MainWindow::createActions()
{
        CameraControlPtr cameraControl = mServices->view()->getCameraControl();
        if (cameraControl)
                mStandard3DViewActions = cameraControl->createStandard3DViewActions();

        mShowContextSensitiveHelpAction = new QAction(QIcon(":/icons/open_icon_library/help-contents-5.png"),
                                                                                                  "Context-sensitive help", this);
        connect(mShowContextSensitiveHelpAction, &QAction::triggered, this, &MainWindow::onShowContextSentitiveHelp);

        mShowControlPanelAction = new QAction("Show Control Panel", this);
        connect(mShowControlPanelAction, &QAction::triggered, this, &MainWindow::showControlPanelActionSlot);
        mSecondaryViewLayoutWindowAction = new QAction("Show Secondary View Layout Window", this);
        connect(mSecondaryViewLayoutWindowAction, &QAction::triggered, this, &MainWindow::showSecondaryViewLayoutWindowActionSlot);

        // Application
        mAboutAction = new QAction(tr("About"), this);
        mAboutAction->setStatusTip(tr("Show the application's About box"));
        mPreferencesAction = new QAction(tr("Preferences"), this);
        mPreferencesAction->setShortcut(tr("Ctrl+,"));
        mPreferencesAction->setStatusTip(tr("Show the preferences dialog"));

        mFullScreenAction = new QAction(tr("Fullscreen"), this);
        mFullScreenAction->setShortcut(tr("F11"));
        mFullScreenAction->setStatusTip(tr("Toggle full screen"));
        mFullScreenAction->setCheckable(true);
        mFullScreenAction->setChecked(this->windowState() & Qt::WindowFullScreen);
        connect(mFullScreenAction, &QAction::triggered, this, &MainWindow::toggleFullScreenSlot);

        mQuitAction = new QAction(tr("&Quit"), this);
        mQuitAction->setShortcut(tr("Ctrl+Q"));
        mQuitAction->setStatusTip(tr("Exit the application"));

        connect(mAboutAction, &QAction::triggered, this, &MainWindow::aboutSlot);
        connect(mPreferencesAction, &QAction::triggered, this, &MainWindow::preferencesSlot);
        connect(mQuitAction, &QAction::triggered, qApp, &QApplication::quit);

        mSaveDesktopAction = new QAction(QIcon(":/icons/workflow_state_save.png"), tr("Save desktop"), this);
        mSaveDesktopAction->setToolTip("Save desktop for workflow step");
        connect(mSaveDesktopAction, &QAction::triggered, this, &MainWindow::saveDesktopSlot);
        mResetDesktopAction = new QAction(QIcon(":/icons/workflow_state_revert.png"), tr("Reset desktop"), this);
        mResetDesktopAction->setToolTip("Reset desktop for workflow step");
        connect(mResetDesktopAction, &QAction::triggered, this, &MainWindow::resetDesktopSlot);

        mInteractorStyleActionGroup = mServices->view()->getInteractorStyleActionGroup();

        // cross-connect save patient to save session
        connect(mServices->session().get(), &SessionStorageService::isSaving, this, &MainWindow::saveDesktopSlot);
}


void MainWindow::onApplicationStateChangedSlot()
{
        this->updateWindowTitle();
}

void MainWindow::updateWindowTitle()
{
        QString profileName = mServices->state()->getApplicationStateName();
        QString versionName = mServices->state()->getVersionName();

        QString activePatientFolder = mServices->patient()->getActivePatientFolder();
        if (activePatientFolder.endsWith('/'))
                activePatientFolder.chop(1);
        QString patientName;

        if (!activePatientFolder.isEmpty())
        {
                QFileInfo info(activePatientFolder);
                patientName = info.completeBaseName();
        }

        QString format("%1 %2 - %3 - %4  (not approved for medical use)");
        QString title = format
                        .arg(qApp->applicationDisplayName())
                        .arg(versionName)
                        .arg(profileName)
                        .arg(patientName);
        this->setWindowTitle(title);
}

void MainWindow::onWorkflowStateChangedSlot()
{
        Desktop desktop = mServices->state()->getActiveDesktop();

        mDockWidgets->restoreFrom(desktop);
        mServices->view()->setActiveLayout(desktop.mLayoutUid, 0);
        mServices->view()->setActiveLayout(desktop.mSecondaryLayoutUid, 1);
        mServices->patient()->autoSave();

        // moved to help plugin:
//      // set initial focus to mainwindow in order to view it in the documentation
//      // this is most important when starting up.
//      QTimer::singleShot(0, this, SLOT(setFocus())); // avoid loops etc by send async event.

//#ifdef CX_APPLE
//      // HACK
//      // Toolbars are not correctly refreshed on mac 10.8,
//      // Cause is related to QVTKWidget (removing it removes the problem)
//      // The following "force refresh by resize" solves repaint, but
//      // inactive toolbars are still partly clickable.
//      QSize size = this->size();
//      this->resize(size.width()-1, size.height());
//      this->resize(size);
//#endif
}

void MainWindow::saveDesktopSlot()
{
        Desktop desktop;
        desktop.mMainWindowState = this->saveState();
        desktop.mLayoutUid = mServices->view()->getActiveLayout(0);
        desktop.mSecondaryLayoutUid = mServices->view()->getActiveLayout(1);
        mServices->state()->saveDesktop(desktop);

        // save to settings file in addition
        settings()->setValue("mainWindow/geometry", saveGeometry());
        settings()->setValue("mainWindow/windowState", saveState());
        settings()->sync();
}

void MainWindow::resetDesktopSlot()
{
        mServices->state()->resetDesktop();
        this->onWorkflowStateChangedSlot();
}

void MainWindow::onShowContextSentitiveHelp()
{
        mDockWidgets->showWidget("Help");
}

void MainWindow::toggleFullScreenSlot()
{
        this->setWindowState(this->windowState() ^ Qt::WindowFullScreen);

        settings()->setValue("gui/fullscreen", (this->windowState() & Qt::WindowFullScreen)!=0);
}

void MainWindow::createActionForWidgetInSeparateWindow(QWidget* widget)
{
        QString uid = widget->objectName();
        if(mSecondaryMainWindows.find(uid) == mSecondaryMainWindows.end())
        {
                SecondaryMainWindow* secondaryMainWindow = new SecondaryMainWindow(this, widget);
                QAction* action = new QAction(widget->windowTitle(), this);

                mSecondaryMainWindows[uid] = secondaryMainWindow;
                mSecondaryMainWindowsActions[uid] = action;

                connect(action, &QAction::triggered, secondaryMainWindow, &QWidget::show);

                mFileMenu->addAction(action);
        }
}

void MainWindow::showControlPanelActionSlot()
{
        if (!mControlPanel)
        {
                TrackPadWidget* trackPadWidget = new TrackPadWidget(mServices->view(), this);
                mControlPanel = new SecondaryMainWindow(this, trackPadWidget);
        }
        mControlPanel->show();
}

void MainWindow::showSecondaryViewLayoutWindowActionSlot()
{
        if (!mSecondaryViewLayoutWindow)
                mSecondaryViewLayoutWindow = new SecondaryViewLayoutWindow(this);
        mSecondaryViewLayoutWindow->tryShowOnSecondaryScreen();
}

void MainWindow::patientChangedSlot()
{
        this->updateWindowTitle();
}

void MainWindow::createMenus()
{
#ifdef CX_LINUX
    // shortcuts defined on actions in the global menubar is not reachable on Qt5+Ubuntu14.04,
    // solve by reverting to old style.
    // This will create a double menubar: remove by autohiding menubar or using
    //   sudo apt-get autoremove appmenu-gtk appmenu-gtk3 appmenu-qt
    // and reboot
    this->menuBar()->setNativeMenuBar(false);
#endif
        mFileMenu = new QMenu(tr("File"), this);
        mWorkflowMenu = new QMenu(tr("Workflow"), this);
        mToolMenu = new QMenu(tr("Tracking"), this);
        mLayoutMenu = new QMenu(tr("Layouts"), this);
        mNavigationMenu = new QMenu(tr("Navigation"), this);
        mHelpMenu = new QMenu(tr("Help"), this);

        // File
        mFileMenu->addAction(mPreferencesAction);
        this->menuBar()->addMenu(mFileMenu);
        mFileMenu->addAction(mActions->getAction("NewPatient"));
        mFileMenu->addAction(mActions->getAction("SaveFile"));
        mFileMenu->addAction(mActions->getAction("LoadFile"));
        mFileMenu->addAction(mActions->getAction("LoadFileCopy"));
        mFileMenu->addAction(mActions->getAction("ClearPatient"));
        mFileMenu->addSeparator();
        mFileMenu->addAction(mActions->getAction("ExportPatient"));
        mFileMenu->addAction(mActions->getAction("ImportData"));
        mFileMenu->addSeparator();
        mFileMenu->addAction(mFullScreenAction);
        mFileMenu->addAction(mActions->getAction("StartLogConsole"));
        mFileMenu->addAction(mActions->getAction("ShootScreen"));
        mFileMenu->addAction(mActions->getAction("ShootWindow"));
        mFileMenu->addAction(mActions->getAction("RecordFullscreen"));
        mFileMenu->addSeparator();
        mFileMenu->addAction(mShowControlPanelAction);
        mFileMenu->addAction(mSecondaryViewLayoutWindowAction);

        mFileMenu->addAction(mQuitAction);

        //workflow
        this->menuBar()->addMenu(mWorkflowMenu);
        QList<QAction*> actions = mServices->state()->getWorkflowActions()->actions();
        for (int i=0; i<actions.size(); ++i)
        {
                mWorkflowMenu->addAction(actions[i]);
        }

        mWorkflowMenu->addSeparator();
        mWorkflowMenu->addAction(mSaveDesktopAction);
        mWorkflowMenu->addAction(mResetDesktopAction);

        //tool
        this->menuBar()->addMenu(mToolMenu);
        mToolMenu->addAction(mActions->getAction("ConfigureTools"));
        mToolMenu->addAction(mActions->getAction("InitializeTools"));
        mToolMenu->addAction(mActions->getAction("TrackingTools"));
        mToolMenu->addSeparator();
        mToolMenu->addAction(mActions->getAction("StartStreaming"));
        mToolMenu->addSeparator();

        //layout
        this->menuBar()->addMenu(mLayoutMenu);
        mLayoutInteractor->connectToMenu(mLayoutMenu);

        this->menuBar()->addMenu(mNavigationMenu);
        mNavigationMenu->addAction(mActions->getAction("CenterToImageCenter"));
        mNavigationMenu->addAction(mActions->getAction("CenterToTooltip"));
        mNavigationMenu->addAction(mActions->getAction("ShowPointPicker"));
        mNavigationMenu->addSeparator();
        mNavigationMenu->addActions(mInteractorStyleActionGroup->actions());

        mHelpMenuAction = this->menuBar()->addMenu(mHelpMenu);
        mHelpMenu->addAction(mAboutAction);
        mHelpMenu->addAction(mActions->getAction("GotoDocumentation"));
        mHelpMenu->addAction(mShowContextSensitiveHelpAction);
}

void MainWindow::createToolBars()
{
        mWorkflowToolBar = this->registerToolBar("Workflow");
        QList<QAction*> actions = mServices->state()->getWorkflowActions()->actions();
        for (int i=0; i<actions.size(); ++i)
                mWorkflowToolBar->addAction(actions[i]);

        mDataToolBar = this->registerToolBar("Data");
        mDataToolBar->addAction(mActions->getAction("NewPatient"));
        mDataToolBar->addAction(mActions->getAction("LoadFile"));
        mDataToolBar->addAction(mActions->getAction("SaveFile"));
        mDataToolBar->addAction(mActions->getAction("ImportData"));

        mToolToolBar = this->registerToolBar("Tools");
        mToolToolBar->addAction(mActions->getAction("TrackingTools"));
        mToolToolBar->addAction(mActions->getAction("StartStreaming"));

        mNavigationToolBar = this->registerToolBar("Navigation");
        mNavigationToolBar->addAction(mActions->getAction("CenterToImageCenter"));
        mNavigationToolBar->addAction(mActions->getAction("CenterToTooltip"));
        mNavigationToolBar->addAction(mActions->getAction("ShowPointPicker"));

        mInteractorStyleToolBar = this->registerToolBar("InteractorStyle");
        mInteractorStyleToolBar->addActions(mInteractorStyleActionGroup->actions());

        mDesktopToolBar = this->registerToolBar("Desktop");
        mDesktopToolBar->addAction(mSaveDesktopAction);
        mDesktopToolBar->addAction(mResetDesktopAction);

        mScreenshotToolBar = this->registerToolBar("Screenshot");
        mScreenshotToolBar->addAction(mActions->getAction("ShootScreen"));
        mScreenshotToolBar->addAction(mActions->getAction("RecordFullscreen"));

        QToolBar* camera3DViewToolBar = this->registerToolBar("Camera 3D Views");
        camera3DViewToolBar->addActions(mStandard3DViewActions->actions());

        QToolBar* samplerWidgetToolBar = this->registerToolBar("Sampler");
        samplerWidgetToolBar->addWidget(new SamplerWidget(mServices->tracking(), mServices->patient(), mServices->spaceProvider(), this));

        QToolBar* toolOffsetToolBar = this->registerToolBar("Tool Offset");
        DoublePropertyBasePtr offset = DoublePropertyActiveToolOffset::create(ActiveToolProxy::New(mServices->tracking()));
        SpinBoxAndSliderGroupWidget* offsetWidget = new SpinBoxAndSliderGroupWidget(this, offset);
        offsetWidget->showLabel(false);
        toolOffsetToolBar->addWidget(offsetWidget);

        QToolBar* helpToolBar = this->registerToolBar("Help");
        helpToolBar->addAction(mShowContextSensitiveHelpAction);
}

QToolBar* MainWindow::registerToolBar(QString name, QString groupname)
{
        QToolBar* toolbar = new QToolBar(name);
        toolbar->setObjectName(QString(name).remove(" ")+"ToolBar");
        mDockWidgets->registerToolBar(toolbar, groupname);
        return toolbar;
}

void MainWindow::aboutSlot()
{
        QString doc_path = DataLocations::getDocPath();
        QString appName = qApp->applicationDisplayName();
        QString url_website = DataLocations::getWebsiteURL();
        QString url_license = QString("file://%1/License.txt").arg(doc_path);
        QString url_config = QString("file://%1/cxConfigDescription.txt").arg(doc_path);

        QString text(""
        "<h2>%1</h2>"
        "<h4>%2</h4>"
        "<p>A Research Platform for Image-Guided Therapy<p>"
        "<p>%1 is NOT approved for medical use.<p>"
        ""
        "<p><a href=%3> website </a><p>"
        "<p><a href=%4> license </a><p>"
        "<p><a href=%5> configuration </a><p>");

        QMessageBox::about(this, tr("About %1").arg(appName), text
                        .arg(appName)
                        .arg(CustusX_VERSION_STRING)
                        .arg(url_website)
                        .arg(url_license)
                        .arg(url_config)
                        );
}

void MainWindow::preferencesSlot()
{
        PreferencesDialog prefDialog(mServices->view(), mServices->patient(), mServices->state(), mServices->tracking(), this);
        prefDialog.exec();
}

void MainWindow::closeEvent(QCloseEvent *event)
{
        QMainWindow::closeEvent(event);
        qApp->quit();
}

QDockWidget* MainWindow::addAsDockWidget(QWidget* widget, QString groupname)
{
        QDockWidget* dw = mDockWidgets->addAsDockWidget(widget, groupname);
        return dw;

}

}//namespace cx