    /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
    /*
     * This file is part of the LibreOffice project.
     *
     * This Source Code Form is subject to the terms of the Mozilla Public
     * License, v. 2.0. If a copy of the MPL was not distributed with this
     * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     */
    #include "Receiver.hxx"
    #include <string.h>
    #include <com/sun/star/presentation/XSlideShowController.hpp>
    #include <com/sun/star/presentation/XPresentationSupplier.hpp>
    #include <com/sun/star/presentation/XPresentation2.hpp>
    #include <com/sun/star/frame/Desktop.hpp>
    #include <com/sun/star/uno/RuntimeException.hpp>

    #include <comphelper/processfactory.hxx>
    #include <comphelper/anytostring.hxx>
    #include <cppuhelper/exc_hlp.hxx>
    #include <osl/file.hxx>
    #include <rtl/ustrbuf.hxx>
    #include <rtl/strbuf.hxx>
    #include <sal/log.hxx>
    #include <com/sun/star/beans/PropertyValue.hpp>

    using namespace sd;
    using namespace ::osl;
    using namespace std;
    using namespace ::com::sun::star;
    using namespace ::com::sun::star::lang;
    using namespace ::com::sun::star::uno;
    using namespace ::com::sun::star::presentation;
    using namespace ::com::sun::star::beans;

    Receiver::Receiver( Transmitter *aTransmitter )
    {
        pTransmitter = aTransmitter;
        SetTimeout( 0 );
    }

    Receiver::~Receiver()
    {
    }

    // Bounce the commands to the main thread to avoid threading woes
    void Receiver::pushCommand( const std::vector<OString> &rCommand )
    {
        SolarMutexGuard aGuard;
        maExecQueue.push_back( rCommand );
        Start();
    }

    void Receiver::Invoke()
    {
        if( maExecQueue.size() )
        {
            std::vector< OString > aCommands( maExecQueue.front() );
            maExecQueue.pop_front();
            if( !aCommands.empty() )
                executeCommand( aCommands );
            Start();
        }
        else
            Stop();
    }

    void Receiver::executeCommand( const std::vector<OString> &aCommand )
    {
        uno::Reference<presentation::XSlideShowController> xSlideShowController;
        uno::Reference<presentation::XPresentation2> xPresentation;
        uno::Reference<presentation::XSlideShow> xSlideShow;
        try {
            uno::Reference< frame::XDesktop2 > xFramesSupplier = frame::Desktop::create( ::comphelper::getProcessComponentContext() );
            uno::Reference< frame::XFrame > xFrame ( xFramesSupplier->getActiveFrame(), uno::UNO_QUERY_THROW );
            uno::Reference<presentation::XPresentationSupplier> xPS ( xFrame->getController()->getModel(), uno::UNO_QUERY_THROW);
            xPresentation.set( xPS->getPresentation(), uno::UNO_QUERY_THROW);
            // Throws an exception if now slideshow running
            xSlideShowController.set( xPresentation->getController(), uno::UNO_QUERY_THROW );
            xSlideShow.set( xSlideShowController->getSlideShow(), uno::UNO_QUERY_THROW );
        }
        catch (uno::RuntimeException &)
        {
        }

        if ( aCommand[0] ==  "transition_next" )
        {
            if ( xSlideShowController.is() )
                xSlideShowController->gotoNextEffect();
        }
        else if ( aCommand[0] == "transition_previous" )
        {
            if ( xSlideShowController.is() )
                xSlideShowController->gotoPreviousEffect();
        }
        else if ( aCommand[0] == "goto_slide" )
        {
            // FIXME: if 0 returned, then not a valid number
            sal_Int32 aSlide = aCommand[1].toInt32();
            if ( xSlideShowController.is() &&
                xSlideShowController->getCurrentSlideIndex() != aSlide )
            {
                xSlideShowController->gotoSlideIndex( aSlide );
            }
        }
        else if ( aCommand[0] == "presentation_start" )
        {
            if ( xPresentation.is() )
                xPresentation->start();
        }
        else if ( aCommand[0] == "presentation_stop" )
        {
            if ( xPresentation.is() )
                xPresentation->end();
        }
        else if ( aCommand[0] == "presentation_blank_screen" )
        {
            if ( aCommand.size() > 1 )
            {
    //             aColour = FIXME: get the colour in some format from this string
    //              Determine the formatting first.
            }
            if ( xSlideShowController.is() )
            {
                xSlideShowController->blankScreen( 0 ); // Default is black
            }
        }
        else if (aCommand[0] == "pointer_started" )
        {
            // std::cerr << "pointer_started" << std::endl;
            float x = aCommand[1].toFloat();
            float y = aCommand[2].toFloat();
            SolarMutexGuard aSolarGuard;

            const css::geometry::RealPoint2D pos(x,y);
            // std::cerr << "Pointer at ("<<pos.X<<","<<pos.Y<<")" << std::endl;

            if (xSlideShow.is()) try
            {
                // std::cerr << "pointer_coordination in the is" << std::endl;
                xSlideShow->setProperty(
                            beans::PropertyValue( "PointerPosition" ,
                                -1,
                                makeAny( pos ),
                                beans::PropertyState_DIRECT_VALUE ) );
            }
            catch ( Exception& )
            {
                SAL_WARN( "sdremote", "sd::SlideShowImpl::setPointerPosition(), "
                    "exception caught: " << comphelper::anyToString( cppu::getCaughtException() ));
            }

            if (xSlideShow.is()) try
            {
                xSlideShow->setProperty(
                            beans::PropertyValue( "PointerVisible" ,
                                -1,
                                makeAny( true ),
                                beans::PropertyState_DIRECT_VALUE ) );
            }
            catch ( Exception& )
            {
                SAL_WARN( "sdremote", "sd::SlideShowImpl::setPointerMode(), "
                    "exception caught: " << comphelper::anyToString( cppu::getCaughtException() ));
            }

            SAL_INFO( "sdremote", "Pointer started, we display the pointer on screen" );
        }
        else if (aCommand[0] == "pointer_dismissed" )
        {
            SolarMutexGuard aSolarGuard;
            if (xSlideShow.is()) try
            {
                xSlideShow->setProperty(
                            beans::PropertyValue( "PointerVisible" ,
                                -1,
                                makeAny( false ),
                                beans::PropertyState_DIRECT_VALUE ) );
            }
            catch ( Exception& )
            {
                SAL_WARN( "sdremote", "sd::SlideShowImpl::setPointerMode(), "
                    "exception caught: " << comphelper::anyToString( cppu::getCaughtException() ));
            }

            SAL_INFO( "sdremote", "Pointer dismissed, we hide the pointer on screen" );
        }
        else if (aCommand[0] == "pointer_coordination" )
        {
            float x = aCommand[1].toFloat();
            float y = aCommand[2].toFloat();

            SAL_INFO( "sdremote", "Pointer at ("<<x<<","<<y<<")" );
            const css::geometry::RealPoint2D pos(x,y);

            SolarMutexGuard aSolarGuard;
            if (xSlideShow.is()) try
            {
                xSlideShow->setProperty(
                            beans::PropertyValue( "PointerPosition" ,
                                -1,
                                makeAny( pos ),
                                beans::PropertyState_DIRECT_VALUE ) );
            }
            catch ( Exception& )
            {
                SAL_WARN( "sdremote", "sd::SlideShowImpl::setPointerPosition(), "
                    "exception caught: " << comphelper::anyToString( cppu::getCaughtException() ));
            }
        }
        else if ( aCommand[0] == "presentation_resume" )
        {
            if ( xSlideShowController.is() )
            {
                xSlideShowController->resume();
            }
        }
    }

    /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

↑ V581 The conditional expressions of the 'if' statements situated alongside each other are identical. Check lines: 137, 152.