WQt4Gui.cpp 6.19 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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#include <iostream>
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#include <fstream>
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#include <string>
#include <vector>
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#include <boost/program_options.hpp>
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#include <boost/shared_ptr.hpp>
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#include <QtGui/QApplication>
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#include <QtGui/QFileDialog>

#include "WMainWindow.h"
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#include "../../kernel/WKernel.h"
#include "../../graphicsEngine/WGraphicsEngine.h"
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#include "../../modules/data/WMData.h"
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#include "WQt4Gui.h"
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WQt4Gui::WQt4Gui( int argc, char** argv ):
    WGUI( argc, argv )
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{
}

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WQt4Gui::~WQt4Gui()
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{
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}

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bool WQt4Gui::parseOptions( int argc, char** argv )
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{
    // since the namespace is far to big we use a shortcut here
    namespace po = boost::program_options;

    po::options_description desc( "Allowed options" );
    desc.add_options()
        ( "help,h", "Prints this help message" )
        ( "input,i", po::value< std::vector< std::string > >(), "Input data files that should be loaded automatically" );

    po::positional_options_description p;
    p.add( "input", -1 );

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    try
    {
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        po::store( po::command_line_parser( argc, argv ).options( desc ).positional( p ).run(), m_optionsMap );
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    }
    catch( boost::program_options::unknown_option e )
    {
        std::cout << e.what() << std::endl;
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        return false;
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    }
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    catch( boost::program_options::invalid_command_line_syntax e )
    {
        std::cout << e.what() << std::endl;
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        return false;
    }

    po::notify( m_optionsMap );

    //=====================
    // CONFIGURATION FILE
    po::options_description guiConfigurationDescription( "GUI configuration" );
    guiConfigurationDescription.add_options()
        ( "ge.bgColor.r", po::value< float >() )
        ( "ge.bgColor.g", po::value< float >() )
        ( "ge.bgColor.b", po::value< float >() );

    std::ifstream ifs;
    ifs.open( "walnut.cfg", std::ifstream::in );

    po::variables_map guiConfiguration;

    try
    {
        po::store( po::parse_config_file( ifs, guiConfigurationDescription ), m_guiConfiguration );
    }
    catch( boost::program_options::unknown_option e )
    {
        std::cout << "Syntax error in configuration file \"walnut.cfg\"." << std::endl;
        return false;
    }

    po::notify( m_guiConfiguration );

    // print usage information if command line asks for help.
    if( m_optionsMap.count( "help" ) )
    {
        std::cout << desc << std::endl;
    }
    return true;
}

int WQt4Gui::run()
{
    bool parsingSuccessful = false;
    parsingSuccessful = parseOptions( argc, argv );

    if( !parsingSuccessful )
    {
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        return 1;
    }
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    // exit as fast as possible if command line asked for help. The ,essage has been printed by parseOptions().
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    if( m_optionsMap.count( "help" ) )
    {
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        return 1;
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    }

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    WLogger::getLogger()->run();
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    WLogger::getLogger()->addLogMessage( "Bringing up GUI", "GUI", LL_INFO );
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    QApplication appl( argc, argv, true );
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    // startup graphics engine
    m_ge = boost::shared_ptr< WGraphicsEngine >( new WGraphicsEngine() );
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    // and startup kernel
    m_kernel = boost::shared_ptr< WKernel >( new WKernel( m_ge, shared_from_this() ) );
    m_kernel->run();
    // create the window
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    m_gui = new WMainWindow( m_guiConfiguration );
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    m_gui->show();
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    // connect out loader signal with krnel
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    getLoadButtonSignal()->connect( boost::bind( &WKernel::loadDataSets, m_kernel, _1 ) );
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    m_gui->getModuleButtonSignal()->connect( boost::bind( &WKernel::applyModule, m_kernel, _1, _2 ) );
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    // bind the GUI's slot with the ready signal
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    t_ModuleGenericSignalHandlerType f = boost::bind( &WQt4Gui::slotAddDatasetOrModuleToBrowser, this, _1 );
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    m_kernel->getRootContainer()->addDefaultNotifier( READY, f );

    // now we are initialized
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    m_isInitialized( true );
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    // check if we want to load data due to command line and call the respective function
    if( m_optionsMap.count("input") )
    {
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        m_kernel->loadDataSets( m_optionsMap["input"].as< std::vector< std::string > >() );
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    }

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    // run
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    int qtRetCode = appl.exec();

    // signal everybody to shut down properly.
    WKernel::getRunningKernel()->wait( true );
    WKernel::getRunningKernel()->getGraphicsEngine()->wait( true );

    return qtRetCode;
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}

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void WQt4Gui::slotAddDatasetOrModuleToBrowser( boost::shared_ptr< WModule > module )
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{
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    // get properties from the module and register them
    m_gui->getPropertyManager()->connectProperties( module->getProperties() );
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    // TODO(schurade): is this differentiation between data and "normal" modules really needed?
    if ( boost::shared_dynamic_cast< WMData >( module ).get() )
    {
        m_gui->getDatasetBrowser()->addDataset( module, 0 );
    }
    else
    {
        m_gui->getDatasetBrowser()->addModule( module );
    }
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}

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std::vector< boost::shared_ptr< WDataSet > > WQt4Gui::getDataSetList( int subjectId, bool onlyTextures )
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{
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    return m_gui->getDatasetBrowser()->getDataSetList( subjectId, onlyTextures );
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}
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boost::shared_ptr< WModule > WQt4Gui::getSelectedModule()
{
    return m_gui->getDatasetBrowser()->getSelectedModule();
}

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boost::signals2::signal1< void, std::vector< std::string > >* WQt4Gui::getLoadButtonSignal()
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{
    return m_gui->getLoaderSignal();
}

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boost::signals2::signal1< void, std::string >* WQt4Gui::getPickSignal()
{
    return m_gui->getPickSignal();
}