WMainWindow.cpp 52.1 KB
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//---------------------------------------------------------------------------
//
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// Project: OpenWalnut ( http://www.openwalnut.org )
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//
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// Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
// For more information see http://www.openwalnut.org/copying
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//
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// This file is part of OpenWalnut.
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//
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// OpenWalnut is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
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// OpenWalnut is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
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// along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
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//
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//---------------------------------------------------------------------------

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#include <iostream>
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#include <map>
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#include <string>
#include <vector>
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#include <boost/thread.hpp>
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#include <boost/regex.hpp>
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#include <boost/filesystem.hpp>
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#include <QtGui/QApplication>
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#include <QtGui/QCloseEvent>
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#include <QtGui/QDockWidget>
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#include <QtGui/QFileDialog>
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#include <QtGui/QIcon>
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#include <QtGui/QMenu>
#include <QtGui/QMenuBar>
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#include <QtGui/QMessageBox>
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#include <QtGui/QTextEdit>
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#include <QtGui/QShortcut>
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#include <QtGui/QSlider>
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#include <QtGui/QVBoxLayout>
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#include <QtGui/QWidget>
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#include <QtCore/QSettings>
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#include <QtCore/QUrl>
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#include <QtGui/QInputDialog>
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#ifndef QT4GUI_NOWEBKIT
    #include <QtWebKit/QWebView>
#endif

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#include "WVersion.h"   // NOTE: this file is auto-generated by CMAKE

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#include "../icons/WIcons.xpm"
#include "controlPanel/WPropertyBoolWidget.h"
#include "controlPanel/WQtControlPanel.h"
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#include "core/common/WColor.h"
#include "core/common/WIOTools.h"
#include "core/common/WPathHelper.h"
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#include "core/common/WProjectFileIO.h"
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#include "core/dataHandler/WDataSetFibers.h"
#include "core/dataHandler/WDataSetSingle.h"
#include "core/dataHandler/WEEG2.h"
#include "core/graphicsEngine/WGEZoomTrackballManipulator.h"
#include "core/graphicsEngine/WROIBox.h"
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#include "core/kernel/WDataModule.h"
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#include "core/kernel/WKernel.h"
#include "core/kernel/WModule.h"
#include "core/kernel/WModuleCombiner.h"
#include "core/kernel/WModuleCombinerTypes.h"
#include "core/kernel/WProjectFile.h"
#include "core/kernel/WROIManager.h"
#include "core/kernel/WSelectionManager.h"
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#include "events/WEventTypes.h"
#include "events/WModuleCrashEvent.h"
#include "events/WModuleReadyEvent.h"
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#include "events/WModuleRemovedEvent.h"
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#include "events/WOpenCustomDockWidgetEvent.h"
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#include "events/WCloseCustomDockWidgetEvent.h"
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#include "events/WLoadFinishedEvent.h"
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#include "guiElements/WQtPropertyBoolAction.h"
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#include "WQt4Gui.h"
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#include "WQtCombinerToolbar.h"
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#include "WQtCustomDockWidget.h"
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#include "WQtGLDockWidget.h"
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#include "WQtNavGLWidget.h"
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#include "WSettingAction.h"
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#include "WSettingMenu.h"
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#include "WQtMessageDialog.h"
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#include "WQtGLScreenCapture.h"
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#include "WMainWindow.h"
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#include "WMainWindow.moc"
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WMainWindow::WMainWindow( QSplashScreen* splash ):
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    QMainWindow(),
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    m_splash( splash ),
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    m_currentCompatiblesToolbar( NULL ),
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    m_iconManager()
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{
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    setAcceptDrops( true ); // enable drag and drop events
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}
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WMainWindow::~WMainWindow()
{
    // cleanup
}

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void WMainWindow::setupGUI()
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{
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    wlog::info( "WMainWindow" ) << "Setting up GUI";

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    /////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    // Setting setup
    /////////////////////////////////////////////////////////////////////////////////////////////////////////////////

    WSettingAction* hideMenuAction = new WSettingAction( this, "qt4gui/showMenu",
                                                               "Show Menubar",
                                                               "Allows you to hide the menu. Can be restored using CTRL-M.",
                                                               true,
                                                               false,
                                                               QKeySequence( Qt::CTRL + Qt::Key_M ) );

    WSettingAction* showNavWidgets = new WSettingAction( this, "qt4gui/showNavigationWidgets",
                                                               "Show Navigation Views",
                                                               "Disables the navigation views completely. This can lead to a speed-up and is "
                                                               "recommended for those who do not need them.",
                                                               true,
                                                               true    // this requires a restart
                                                       );
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    WSettingAction* showNetworkEditor = new WSettingAction( this, "qt4gui/showNetworkEditor",
                                                               "Show Network Editor",
                                                               "Show the network editor allowing you to manipulate the module graph graphically?",
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                                                               true,
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                                                               true    // this requires a restart
                                                       );
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    m_autoDisplaySetting = new WSettingAction( this, "qt4gui/useAutoDisplay",
                                                     "Auto-Display",
                                                     "If enabled, the best matching module is automatically added if some data was loaded.",
                                                     true );

    WSettingAction* mtViews = new WSettingAction( this, "qt4gui/ge/multiThreadedViewer",
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                                                        "Multi-Threaded Views",
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                                                        "If enabled, the graphic windows are rendered in different threads. This can speed-up "
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                                                        "rendering on machines with multiple cores. WARNING: can lead to crashes sometimes.",
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                                                        false,
                                                        true // require restart
                                                );
    // NOTE: the multi-threading feature needs to be activated BEFORE the first viewer is created. To ensure this we do it here.
    WGraphicsEngine::getGraphicsEngine()->setMultiThreadedViews( mtViews->get() );

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    // set the log-level setting.
    // NOTE: see WQt4Gui which reads the setting.
    QList< QString > logOptions;
    logOptions.push_back( "Debug" );
    logOptions.push_back( "Info" );
    logOptions.push_back( "Warning" );
    logOptions.push_back( "Error" );
    WSettingMenu* logLevels = new WSettingMenu( this, "qt4gui/logLevel",
                                                      "Log-Level",
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                                                      "Allows one to set the log verbosity.",
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                                                      1,    // info is the default
                                                      logOptions
                                              );
    connect( logLevels, SIGNAL( change( unsigned int ) ), this, SLOT( handleLogLevelUpdate( unsigned int ) ) );

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    /////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    // GUI setup
    /////////////////////////////////////////////////////////////////////////////////////////////////////////////////

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    m_iconManager.addIcon( std::string( "load" ), fileopen_xpm );
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    m_iconManager.addIcon( std::string( "loadProject" ), projOpen_xpm );
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    m_iconManager.addIcon( std::string( "saveProject" ), projSave_xpm );
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    m_iconManager.addIcon( std::string( "logo" ), openwalnut_32x32_xpm );
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    m_iconManager.addIcon( std::string( "help" ), question_xpm );
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    m_iconManager.addIcon( std::string( "quit" ), quit_xpm );
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    m_iconManager.addIcon( std::string( "moduleBusy" ), moduleBusy_xpm );
    m_iconManager.addIcon( std::string( "moduleCrashed" ), moduleCrashed_xpm );
    m_iconManager.addIcon( std::string( "remove" ), remove_xpm );
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    m_iconManager.addIcon( std::string( "config" ), preferences_system_xpm );
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    m_iconManager.addIcon( std::string( "view" ), camera_xpm );
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    m_iconManager.addIcon( std::string( "missingModule" ), QuestionMarks_xpm );
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    m_iconManager.addIcon( std::string( "none" ), empty_xpm );
    m_iconManager.addIcon( std::string( "DefaultModuleIcon" ), moduleDefault_xpm );
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    m_iconManager.addIcon( std::string( "video" ), video_xpm );
    m_iconManager.addIcon( std::string( "image" ), image_xpm );
    m_iconManager.addIcon( std::string( "preferences" ), preferences_xpm );
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    if( objectName().isEmpty() )
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    {
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        setObjectName( QString::fromUtf8( "MainWindow" ) );
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    }
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    // NOTE: this only is an initial size. The state reloaded from QSettings will set it to the value the user had last session.
    resize( 800, 600 );
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    setWindowIcon( m_iconManager.getIcon( "logo" ) );
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    std::string windowHeading =  std::string( "OpenWalnut " ) + std::string( W_VERSION );
    setWindowTitle( QApplication::translate( "MainWindow", windowHeading.c_str(), 0, QApplication::UnicodeUTF8 ) );
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    setDockOptions( QMainWindow::AnimatedDocks |  QMainWindow::AllowNestedDocks | QMainWindow::AllowTabbedDocks );

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    //network Editor
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    m_networkEditor = NULL;
    if( showNetworkEditor->get() )
    {
        m_networkEditor = new WQtNetworkEditor( this );
        m_networkEditor->setFeatures( QDockWidget::AllDockWidgetFeatures );
    }
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    // the control panel instance is needed for the menu
    m_controlPanel = new WQtControlPanel( this );
    m_controlPanel->setFeatures( QDockWidget::AllDockWidgetFeatures );
    m_controlPanel->addSubject( "Default Subject" );
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    // add all docks
    addDockWidget( Qt::RightDockWidgetArea, m_controlPanel->getModuleDock() );
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    if( m_networkEditor )
    {
        addDockWidget( Qt::RightDockWidgetArea, m_networkEditor );
    }
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    addDockWidget( Qt::RightDockWidgetArea, m_controlPanel->getColormapperDock() );
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    addDockWidget( Qt::RightDockWidgetArea, m_controlPanel->getRoiDock() );
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    // tabify those panels by default
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    if( m_networkEditor )
    {
        tabifyDockWidget( m_networkEditor, m_controlPanel->getModuleDock() );
    }
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    tabifyDockWidget( m_controlPanel->getModuleDock(), m_controlPanel->getColormapperDock() );
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    tabifyDockWidget( m_controlPanel->getColormapperDock(), m_controlPanel->getRoiDock() );
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    m_glDock = new QMainWindow();
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    m_glDock->setObjectName( "GLDock" );
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    m_glDock->setDockOptions( QMainWindow::AnimatedDocks |  QMainWindow::AllowNestedDocks | QMainWindow::AllowTabbedDocks );
    m_glDock->setDocumentMode( true );
    setCentralWidget( m_glDock );
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    WQtGLDockWidget* mainGLDock = new WQtGLDockWidget( "Main View", "3D View", m_glDock );
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    mainGLDock->getGLWidget()->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding );
    m_mainGLWidget = mainGLDock->getGLWidget();
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    m_mainGLWidgetScreenCapture = m_mainGLWidget->getScreenCapture( this );
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    m_glDock->addDockWidget( Qt::RightDockWidgetArea, mainGLDock );
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    addDockWidget( Qt::RightDockWidgetArea, m_mainGLWidgetScreenCapture );
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    tabifyDockWidget( m_controlPanel->getRoiDock(), m_mainGLWidgetScreenCapture );
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    connect( m_mainGLWidget.get(), SIGNAL( renderedFirstFrame() ), this, SLOT( handleGLVendor() ) );
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    addDockWidget( Qt::RightDockWidgetArea, m_controlPanel );

    // by default, the module editor should be in front
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    if( m_networkEditor )
    {
        m_networkEditor->raise();
    }
    else
    {
        m_controlPanel->getModuleDock()->raise();
    }
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    // NOTE: we abuse the gl widgets first frame event to handle startup news.
    connect( m_mainGLWidget.get(), SIGNAL( renderedFirstFrame() ), this, SLOT( handleStartMessages() ) );
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    connect( m_mainGLWidget.get(), SIGNAL( renderedFirstFrame() ), this, SLOT( closeSplash() ) );
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    m_permanentToolBar = new WQtToolBar( "Standard Toolbar", this );
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    addToolBar( Qt::TopToolBarArea, m_permanentToolBar );
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    m_iconManager.addIcon( std::string( "ROI icon" ), box_xpm );
    m_iconManager.addIcon( std::string( "Reset icon" ), o_xpm );
    m_iconManager.addIcon( std::string( "axial icon" ), axial_xpm );
    m_iconManager.addIcon( std::string( "coronal icon" ), cor_xpm );
    m_iconManager.addIcon( std::string( "sagittal icon" ), sag_xpm );

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    m_loadButton = new QAction( m_iconManager.getIcon( "load" ), "Load Dataset", m_permanentToolBar );
    m_loadButton->setShortcut( QKeySequence(  QKeySequence::Open ) );
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    QAction* roiButton = new QAction( m_iconManager.getIcon( "ROI icon" ), "ROI", m_permanentToolBar );
    QAction* resetButton = new QAction( m_iconManager.getIcon( "view" ), "Reset", m_permanentToolBar );
    resetButton->setShortcut( QKeySequence( Qt::Key_Escape ) );
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    QAction* projectSaveButton = new QAction( m_iconManager.getIcon( "saveProject" ), "Save Project", m_permanentToolBar );
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    connect( m_loadButton, SIGNAL(  triggered( bool ) ), this, SLOT( openLoadDialog() ) );
    connect( resetButton, SIGNAL(  triggered( bool ) ), m_mainGLWidget.get(), SLOT( reset() ) );
    connect( roiButton, SIGNAL(  triggered( bool ) ), this, SLOT( newRoi() ) );
    connect( projectSaveButton, SIGNAL( triggered( bool ) ), this, SLOT( projectSaveAll() ) );

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    m_loadButton->setToolTip( "Load a dataset from file" );
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    resetButton->setToolTip( "Reset main view" );
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    roiButton->setToolTip( "Create new ROI" );
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    projectSaveButton->setToolTip( "Save current project to file" );
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    // we want the upper most tree item to be selected. This helps to make the always compatible modules
    // show up in the tool bar from the beginning. And ... it doesn't hurt.
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    m_controlPanel->selectUpperMostEntry();
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    // NOTE: Please be aware that not every menu needs a shortcut key. If you add a shortcut, you should use one of the
    // QKeySequence::StandardKey defaults and avoid ambiguities like Ctrl-C for the configure dialog is not the best choice as Ctrl-C, for the
    // most users is the Copy shortcut.

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    m_menuBar = new QMenuBar( this );
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    // hide menu?
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    m_menuBar->setVisible( hideMenuAction->get() );
    connect( hideMenuAction, SIGNAL( change( bool ) ), m_menuBar, SLOT( setVisible( bool ) ) );
    addAction( hideMenuAction );
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    QMenu* fileMenu = m_menuBar->addMenu( "File" );
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    fileMenu->addAction( m_loadButton );
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    QMenu* saveMenu = fileMenu->addMenu( m_iconManager.getIcon( "saveProject" ), "Save Project" );
    saveMenu->addAction( "Save Project", this, SLOT( projectSaveAll() ), QKeySequence::Save );
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    saveMenu->addAction( "Save Modules Only", this, SLOT( projectSaveModuleOnly() ) );
    saveMenu->addAction( "Save Camera Only", this, SLOT( projectSaveCameraOnly() ) );
    saveMenu->addAction( "Save ROIs Only", this, SLOT( projectSaveROIOnly() ) );
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    projectSaveButton->setMenu( saveMenu );

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    fileMenu->addSeparator();
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    // TODO(all): If all distributions provide a newer QT version we should use QKeySequence::Quit here
    //fileMenu->addAction( m_iconManager.getIcon( "quit" ), "Quit", this, SLOT( close() ), QKeySequence( QKeySequence::Quit ) );
    fileMenu->addAction( m_iconManager.getIcon( "quit" ), "Quit", this, SLOT( close() ),  QKeySequence( Qt::CTRL + Qt::Key_Q ) );
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    // This QAction stuff is quite ugly and complicated some times ... There is no nice constructor which takes name, slot keysequence and so on
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    // directly -> set shortcuts, and some further properties using QAction's interface
    QMenu* viewMenu = m_menuBar->addMenu( "View" );
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    viewMenu->addAction( hideMenuAction );
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    viewMenu->addSeparator();
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    viewMenu->addAction( showNavWidgets );
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    viewMenu->addAction( showNetworkEditor );
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    viewMenu->addSeparator();
    viewMenu->addMenu( m_permanentToolBar->getStyleMenu() );

    // Camera menu
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    QMenu* bgColorMenu = new QMenu( "Background Colors" );
    bgColorMenu->addAction( mainGLDock->getGLWidget()->getBackgroundColorAction() );

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    QMenu* cameraMenu = m_menuBar->addMenu( "Camera" );
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    cameraMenu->addAction( mainGLDock->getGLWidget()->getThrowingSetting() );
    cameraMenu->addMenu( bgColorMenu );
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    cameraMenu->addSeparator();

    QMenu* settingsMenu = m_menuBar->addMenu( "Settings" );
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    settingsMenu->addAction( m_autoDisplaySetting );
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    settingsMenu->addAction( m_controlPanel->getModuleConfig().getConfigureAction() );
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    settingsMenu->addSeparator();
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    settingsMenu->addAction( mtViews );
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    settingsMenu->addSeparator();
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    settingsMenu->addMenu( logLevels );
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    // a separate menu for some presets
    QMenu* cameraPresetMenu = cameraMenu->addMenu( "Presets" );
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    QAction* controlPanelTrigger = m_controlPanel->toggleViewAction();
    QList< QKeySequence > controlPanelShortcut;
    controlPanelShortcut.append( QKeySequence( Qt::Key_F9 ) );
    controlPanelTrigger->setShortcuts( controlPanelShortcut );
    this->addAction( controlPanelTrigger );  // this enables the action even if the menu bar is invisible
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    // NOTE: the shortcuts for these view presets should be chosen carefully. Most keysequences have another meaning in the most applications
    // so the user may get confused. It is also not a good idea to take letters as they might be used by OpenSceneGraph widget ( like "S" for
    // statistics ).
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    // By additionally adding the action to the main window, we ensure the action can be triggered even if the menu bar is hidden.
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    QAction* tmpAction = cameraPresetMenu->addAction( m_iconManager.getIcon( "sagittal icon" ), "Left", this, SLOT( setPresetViewLeft() ),
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                                             QKeySequence( Qt::CTRL + Qt::SHIFT + Qt::Key_L ) );
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    tmpAction->setIconVisibleInMenu( true );
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    this->addAction( tmpAction );

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    tmpAction = cameraPresetMenu->addAction( m_iconManager.getIcon( "sagittal icon" ), "Right", this, SLOT( setPresetViewRight() ),
                                       QKeySequence( Qt::CTRL + Qt::SHIFT + Qt::Key_R ) );
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    tmpAction->setIconVisibleInMenu( true );
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    this->addAction( tmpAction );

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    tmpAction = cameraPresetMenu->addAction( m_iconManager.getIcon( "axial icon" ), "Superior", this, SLOT( setPresetViewSuperior() ),
                                       QKeySequence( Qt::CTRL + Qt::SHIFT + Qt::Key_S ) );
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    tmpAction->setIconVisibleInMenu( true );
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    this->addAction( tmpAction );

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    tmpAction = cameraPresetMenu->addAction( m_iconManager.getIcon( "axial icon" ), "Inferior", this, SLOT( setPresetViewInferior() ),
                                       QKeySequence( Qt::CTRL + Qt::SHIFT + Qt::Key_I ) );
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    tmpAction->setIconVisibleInMenu( true );
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    this->addAction( tmpAction );

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    tmpAction = cameraPresetMenu->addAction( m_iconManager.getIcon( "coronal icon" ), "Anterior", this, SLOT( setPresetViewAnterior() ),
                                       QKeySequence( Qt::CTRL + Qt::SHIFT + Qt::Key_A ) );
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    tmpAction->setIconVisibleInMenu( true );
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    this->addAction( tmpAction );

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    tmpAction = cameraPresetMenu->addAction( m_iconManager.getIcon( "coronal icon" ), "Posterior", this, SLOT( setPresetViewPosterior() ),
                                       QKeySequence( Qt::CTRL + Qt::SHIFT + Qt::Key_P ) );
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    tmpAction->setIconVisibleInMenu( true );
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    this->addAction( tmpAction );

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    resetButton->setMenu( cameraPresetMenu );
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    QMenu* helpMenu = m_menuBar->addMenu( "Help" );
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    helpMenu->addAction( m_iconManager.getIcon( "help" ), "OpenWalnut Help", this, SLOT( openOpenWalnutHelpDialog() ),
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                         QKeySequence( QKeySequence::HelpContents ) );
    helpMenu->addSeparator();
    helpMenu->addAction( m_iconManager.getIcon( "logo" ), "About OpenWalnut", this, SLOT( openAboutDialog() ) );
    helpMenu->addAction( "About Qt", this, SLOT( openAboutQtDialog() ) );
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    setMenuBar( m_menuBar );

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    // initially 3 navigation views
    {
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        if( showNavWidgets->get() )
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        {
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            m_navAxial = boost::shared_ptr< WQtNavGLWidget >( new WQtNavGLWidget( "Axial View", "Axial View", this, "Axial Slice",
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                                                                                  m_mainGLWidget.get() ) );
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            m_navAxial->setFeatures( QDockWidget::AllDockWidgetFeatures );
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            m_navAxial->setSliderProperty( WKernel::getRunningKernel()->getSelectionManager()->getPropAxialPos() );
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            m_navAxial->getGLWidget()->setCameraManipulator( WQtGLWidget::NO_OP );
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            m_glDock->addDockWidget( Qt::LeftDockWidgetArea, m_navAxial.get() );
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            m_navCoronal = boost::shared_ptr< WQtNavGLWidget >( new WQtNavGLWidget( "Coronal View", "Coronal View", this, "Coronal Slice",
                                                                                    m_mainGLWidget.get() ) );
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            m_navCoronal->setFeatures( QDockWidget::AllDockWidgetFeatures );
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            m_navCoronal->setSliderProperty( WKernel::getRunningKernel()->getSelectionManager()->getPropCoronalPos() );
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            m_navCoronal->getGLWidget()->setCameraManipulator( WQtGLWidget::NO_OP );
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            m_glDock->addDockWidget( Qt::LeftDockWidgetArea, m_navCoronal.get() );
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            m_navSagittal =
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                boost::shared_ptr< WQtNavGLWidget >( new WQtNavGLWidget( "Sagittal View", "Sagittal View", this, "Sagittal Slice",
                                                                         m_mainGLWidget.get() ) );
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            m_navSagittal->setFeatures( QDockWidget::AllDockWidgetFeatures );
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            m_navSagittal->setSliderProperty( WKernel::getRunningKernel()->getSelectionManager()->getPropSagittalPos() );
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            m_navSagittal->getGLWidget()->setCameraManipulator( WQtGLWidget::NO_OP );
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            m_glDock->addDockWidget( Qt::LeftDockWidgetArea, m_navSagittal.get() );
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            bgColorMenu->addAction( m_navAxial->getGLWidget()->getBackgroundColorAction() );
            bgColorMenu->addAction( m_navCoronal->getGLWidget()->getBackgroundColorAction() );
            bgColorMenu->addAction( m_navSagittal->getGLWidget()->getBackgroundColorAction() );
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        }
    }

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    // create the show/hide actions using the selection manager's props
    WQtPropertyBoolAction* showAxial = new WQtPropertyBoolAction( WKernel::getRunningKernel()->getSelectionManager()->getPropAxialShow(),
                                                                  m_permanentToolBar );
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    showAxial->setToolTip( "Toggle axial slice" );
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    showAxial->setText( "Toggle Axial Slice" );
    showAxial->setIcon( m_iconManager.getIcon( "axial icon" ) );

    WQtPropertyBoolAction* showCoronal = new WQtPropertyBoolAction( WKernel::getRunningKernel()->getSelectionManager()->getPropCoronalShow(),
                                                                    m_permanentToolBar );
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    showCoronal->setToolTip( "Toggle coronal slice" );
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    showCoronal->setText( "Toggle Coronal Slice" );
    showCoronal->setIcon( m_iconManager.getIcon( "coronal icon" ) );

    WQtPropertyBoolAction* showSagittal = new WQtPropertyBoolAction( WKernel::getRunningKernel()->getSelectionManager()->getPropSagittalShow(),
                                                                     m_permanentToolBar );
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    showSagittal->setToolTip( "Toggle sagittal slice" );
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    showSagittal->setText( "Toggle Sagittal Slice" );
    showSagittal->setIcon( m_iconManager.getIcon( "sagittal icon" ) );

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    // setup permanent toolbar
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    m_permanentToolBar->addAction( m_loadButton );
    m_permanentToolBar->addAction( projectSaveButton );
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    m_permanentToolBar->addSeparator();
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    m_permanentToolBar->addAction( m_mainGLWidgetScreenCapture->getScreenshotTrigger() );
    m_permanentToolBar->addSeparator();
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    m_permanentToolBar->addAction( resetButton );
    m_permanentToolBar->addAction( roiButton );
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    m_permanentToolBar->addSeparator();
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    m_permanentToolBar->addAction( showAxial );
    m_permanentToolBar->addAction( showCoronal );
    m_permanentToolBar->addAction( showSagittal );
    m_permanentToolBar->addSeparator();
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    // after creating the GUI, restore its saved state
    restoreSavedState();
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}
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void WMainWindow::autoAdd( boost::shared_ptr< WModule > module, std::string proto, bool onlyOnce )
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{
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    // if only one module should be added, and there already is one --- skip.
    if( onlyOnce && !WKernel::getRunningKernel()->getRootContainer()->getModules( proto ).empty() )
    {
        return;
    }

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    // get the prototype.
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    if( !WKernel::getRunningKernel()->getRootContainer()->applyModule( module, proto, true ) )
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    {
        WLogger::getLogger()->addLogMessage( "Auto Display active but module " + proto + " could not be added.",
                                             "GUI", LL_ERROR );
    }
}

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void WMainWindow::moduleSpecificCleanup( boost::shared_ptr< WModule > /* module */ )
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{
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    // called for each removed module. Use this to undo modifications done due to added modules (moduleSpecificSetup)
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}

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void WMainWindow::moduleSpecificSetup( boost::shared_ptr< WModule > module )
{
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    // Add all special handlings here. This method is called whenever a module is marked "ready". You can set up the gui for special modules,
    // load certain modules for datasets and so on.

    // The Data Modules also play an special role. To have modules being activated when certain data got loaded, we need to hook it up here.
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    bool useAutoDisplay = m_autoDisplaySetting->get();
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    if( useAutoDisplay && module->getType() == MODULE_DATA )
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    {
        WLogger::getLogger()->addLogMessage( "Auto Display active and Data module added. The proper module will be added.",
                                             "GUI", LL_DEBUG );

        // data modules contain an member denoting the real data type. Currently we only have one data module and a not very modulated data
        // structures.
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        boost::shared_ptr< WDataModule > dataModule = boost::shared_static_cast< WDataModule >( module );
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        // grab data and identify type
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        if( dataModule->getDataSet()->isA< WDataSetSingle >() && dataModule->getDataSet()->isTexture() )
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        {
            // it is a dataset single
            // load a nav slice module if a WDataSetSingle is available!?
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            autoAdd( module, "Navigation Slices", true );
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        }
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        else if( dataModule->getDataSet()->isA< WDataSetFibers >() )
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        {
            // it is a fiber dataset -> add the FiberDisplay module
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            autoAdd( module, "Fiber Display" );
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        }
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        else if( dataModule->getDataSet()->isA< WEEG2 >() )
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        {
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            // it is a eeg dataset -> add the eegView module
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            autoAdd( module, "EEG View" );
        }
    }
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}
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void WMainWindow::setCompatiblesToolbar( WQtCombinerToolbar* toolbar )
{
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    if( m_currentCompatiblesToolbar )
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    {
        delete m_currentCompatiblesToolbar;
    }
    m_currentCompatiblesToolbar = toolbar;

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    if( !toolbar )
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    {
        // ok, reset the toolbar
        // So create a dummy to permanently reserve the space
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        m_currentCompatiblesToolbar = new WQtCombinerToolbar( this );
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    }

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    // we want to keep the tool-button styles in sync
    m_currentCompatiblesToolbar->setToolButtonStyle( m_permanentToolBar->toolButtonStyle() );
    connect( m_permanentToolBar, SIGNAL( toolButtonStyleChanged( Qt::ToolButtonStyle ) ),
             m_currentCompatiblesToolbar, SLOT( setToolButtonStyle( Qt::ToolButtonStyle ) ) );

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    // and the position of the toolbar
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    addToolBar( Qt::TopToolBarArea, m_currentCompatiblesToolbar );
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}
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WQtCombinerToolbar* WMainWindow::getCompatiblesToolbar()
{
    return m_currentCompatiblesToolbar;
}

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WQtControlPanel* WMainWindow::getControlPanel()
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{
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    return m_controlPanel;
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}
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WQtNetworkEditor* WMainWindow::getNetworkEditor()
{
    return m_networkEditor;
}

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bool WMainWindow::projectSave( const std::vector< boost::shared_ptr< WProjectFileIO > >& writer )
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{
    QFileDialog fd;
    fd.setWindowTitle( "Save Project as" );
    fd.setFileMode( QFileDialog::AnyFile );
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    fd.setAcceptMode( QFileDialog::AcceptSave );
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    // My Mac OSX Lion automatically appends .owproj to the file name
    // if no extension is given.
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    QStringList filters;
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    filters << "Project File (*.owproj *.owp)";
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    fd.setNameFilters( filters );
    fd.setViewMode( QFileDialog::Detail );
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    QStringList filenames;
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    if( fd.exec() )
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    {
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        filenames = fd.selectedFiles();
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    }
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    else
    {
        return false; // the user canceled, no files, so nothing saved
    }
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    bool success = true;
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    QStringList::const_iterator constIterator;
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    for( constIterator = filenames.constBegin(); constIterator != filenames.constEnd(); ++constIterator )
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    {
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        std::string filename = ( *constIterator ).toStdString();
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        // append owp if suffix is not present, yet
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        if( filename.rfind( ".owp" ) != filename.size() - 4
         && filename.rfind( ".owproj" ) != filename.size() - 7 )
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        {
            filename += ".owp";
        }

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        boost::shared_ptr< WProjectFile > proj = boost::shared_ptr< WProjectFile >(
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                new WProjectFile( filename )
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        );

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        try
        {
            // This call is synchronous.
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            if( writer.empty() )
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            {
                proj->save();
            }
            else
            {
                proj->save( writer );
            }
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        }
        catch( const std::exception& e )
        {
            QString title = "Problem while saving project file.";
            QString message = "<b>Problem while saving project file.</b><br/><br/><b>File:  </b>" + ( *constIterator ) +
                              "<br/><b>Message:  </b>" + QString::fromStdString( e.what() );
            QMessageBox::critical( this, title, message );
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            success = false;
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        }
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    }
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    return success;
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}

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bool WMainWindow::projectSaveAll()
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{
    std::vector< boost::shared_ptr< WProjectFileIO > > w;
    // an empty list equals "all"
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    return projectSave( w );
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}

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bool WMainWindow::projectSaveCameraOnly()
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{
    std::vector< boost::shared_ptr< WProjectFileIO > > w;
    w.push_back( WProjectFile::getCameraWriter() );
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    return projectSave( w );
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}

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bool WMainWindow::projectSaveROIOnly()
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{
    std::vector< boost::shared_ptr< WProjectFileIO > > w;
    w.push_back( WProjectFile::getROIWriter() );
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    return projectSave( w );
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}

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bool WMainWindow::projectSaveModuleOnly()
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{
    std::vector< boost::shared_ptr< WProjectFileIO > > w;
    w.push_back( WProjectFile::getModuleWriter() );
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    return projectSave( w );
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}

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void WMainWindow::openLoadDialog()
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{
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    QFileDialog fd;
    fd.setFileMode( QFileDialog::ExistingFiles );
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    QStringList filters;
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    filters << "Known file types (*.cnt *.edf *.asc *.nii *.nii.gz *.fib *.owproj *.owp)"
            << "Simple Project File (*.owproj *.owp)"
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            << "EEG files (*.cnt *.edf *.asc)"
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            << "NIfTI (*.nii *.nii.gz)"
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            << "Fibers (*.fib)"
            << "Any files (*)";
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    fd.setNameFilters( filters );
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    fd.setViewMode( QFileDialog::Detail );
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    QStringList filenames;
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    if( fd.exec() )
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    {
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        filenames = fd.selectedFiles();
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    }

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    std::vector< std::string > loadDataFilenames;
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    QStringList::const_iterator constIterator;
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    for( constIterator = filenames.constBegin(); constIterator != filenames.constEnd(); ++constIterator )
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    {
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        boost::filesystem::path fn( ( *constIterator ).toLocal8Bit().constData() );
        std::string suffix = getSuffix( fn );

        // is this a project file?
        if( ( suffix == ".owp" ) || ( suffix == ".owproj" ) )
        {
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            asyncProjectLoad( fn.string() );
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        }
        else
        {
            // this is not a project. So we assume it is a data file
            loadDataFilenames.push_back( fn.string() );
        }
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    }
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    m_loaderSignal( loadDataFilenames );
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}
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void WMainWindow::asyncProjectLoad( std::string filename )
{
    WProjectFile::SPtr proj( new WProjectFile( filename, boost::bind( &WMainWindow::slotLoadFinished, this, _1, _2 ) ) );
    proj->load();
}

void WMainWindow::slotLoadFinished( boost::filesystem::path file, std::vector< std::string > errors )
{
    // as this function might be called from outside the gui thread, use an event:
    QCoreApplication::postEvent( this, new WLoadFinishedEvent( file, errors ) );

    if( errors.size() )
    {
        wlog::warn( "MainWindow" ) << "Async load error occurred. Informing user.";
    }
}

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void WMainWindow::openAboutQtDialog()
{
    QMessageBox::aboutQt( this, "About Qt" );
}