    /* -*- 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/.
     *
     * This file incorporates work covered by the following license notice:
     *
     *   Licensed to the Apache Software Foundation (ASF) under one or more
     *   contributor license agreements. See the NOTICE file distributed
     *   with this work for additional information regarding copyright
     *   ownership. The ASF licenses this file to you under the Apache
     *   License, Version 2.0 (the "License"); you may not use this file
     *   except in compliance with the License. You may obtain a copy of
     *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
     */

    #include <res_LegendPosition.hxx>
    #include <ChartModelHelper.hxx>
    #include <LegendHelper.hxx>
    #include <ChartModel.hxx>

    #include <svtools/controldims.hxx>
    #include <com/sun/star/chart2/LegendPosition.hpp>
    #include <com/sun/star/chart/ChartLegendExpansion.hpp>

    //itemset stuff
    #include <chartview/ChartSfxItemIds.hxx>
    #include <svl/intitem.hxx>
    #include <svl/eitem.hxx>
    #include <tools/diagnose_ex.h>
    #include <vcl/builder.hxx>

    namespace chart
    {

    using namespace ::com::sun::star;
    using namespace ::com::sun::star::chart2;

    LegendPositionResources::LegendPositionResources(VclBuilderContainer& rParent)
        : m_xCC() //unused in this scenario
        , m_pCbxShow( nullptr ) //unused in this scenario, assumed to be visible
    {
        rParent.get(m_pRbtLeft, "left");
        rParent.get(m_pRbtRight, "right");
        rParent.get(m_pRbtTop, "top");
        rParent.get(m_pRbtBottom, "bottom");
        impl_setRadioButtonToggleHdl();
    }

    LegendPositionResources::LegendPositionResources(VclBuilderContainer& rParent,
        const uno::Reference< uno::XComponentContext >& xCC)
        : m_xCC(xCC)
    {
        rParent.get(m_pCbxShow, "show");
        rParent.get(m_pRbtLeft, "left");
        rParent.get(m_pRbtRight, "right");
        rParent.get(m_pRbtTop, "top");
        rParent.get(m_pRbtBottom, "bottom");

        m_pCbxShow->SetToggleHdl( LINK( this, LegendPositionResources, PositionEnableHdl ) );
        impl_setRadioButtonToggleHdl();
    }

    void LegendPositionResources::impl_setRadioButtonToggleHdl()
    {
        m_pRbtLeft->SetToggleHdl( LINK( this, LegendPositionResources, PositionChangeHdl ) );
        m_pRbtTop->SetToggleHdl( LINK( this, LegendPositionResources, PositionChangeHdl ) );
        m_pRbtRight->SetToggleHdl( LINK( this, LegendPositionResources, PositionChangeHdl ) );
        m_pRbtBottom->SetToggleHdl( LINK( this, LegendPositionResources, PositionChangeHdl ) );
    }

    LegendPositionResources::~LegendPositionResources()
    {
    }

    void LegendPositionResources::writeToResources( const uno::Reference< frame::XModel >& xChartModel )
    {
        try
        {
            uno::Reference< XDiagram > xDiagram = ChartModelHelper::findDiagram( xChartModel );
            uno::Reference< beans::XPropertySet > xProp( xDiagram->getLegend(), uno::UNO_QUERY );
            if( xProp.is() )
            {
                //show
                bool bShowLegend = false;
                xProp->getPropertyValue( "Show" ) >>= bShowLegend;
                if (m_pCbxShow)
                    m_pCbxShow->Check( bShowLegend );
                PositionEnableHdl(*m_pCbxShow);

                //position
                chart2::LegendPosition ePos;
                xProp->getPropertyValue( "AnchorPosition" )  >>= ePos;
                switch( ePos )
                {
                    case chart2::LegendPosition_LINE_START:
                        m_pRbtLeft->Check();
                        break;
                    case chart2::LegendPosition_LINE_END:
                        m_pRbtRight->Check();
                        break;
                    case chart2::LegendPosition_PAGE_START:
                        m_pRbtTop->Check();
                        break;
                    case chart2::LegendPosition_PAGE_END:
                        m_pRbtBottom->Check();
                        break;

                    case chart2::LegendPosition_CUSTOM:
                    default:
                        m_pRbtRight->Check();
                        break;
                }
            }
        }
        catch( const uno::Exception & )
        {
            DBG_UNHANDLED_EXCEPTION("chart2");
        }
    }

    void LegendPositionResources::writeToModel( const css::uno::Reference< frame::XModel >& xChartModel ) const
    {
        try
        {
            bool bShowLegend = m_pCbxShow && m_pCbxShow->IsChecked();
            ChartModel& rModel = dynamic_cast<ChartModel&>(*xChartModel.get());
            uno::Reference< beans::XPropertySet > xProp(LegendHelper::getLegend(rModel, m_xCC, bShowLegend), uno::UNO_QUERY);
            if( xProp.is() )
            {
                //show
                xProp->setPropertyValue( "Show" , uno::Any( bShowLegend ));

                //position
                chart2::LegendPosition eNewPos;
                css::chart::ChartLegendExpansion eExp = css::chart::ChartLegendExpansion_HIGH;

                if( m_pRbtLeft->IsChecked() )
                    eNewPos = chart2::LegendPosition_LINE_START;
                else if( m_pRbtRight->IsChecked() )
                {
                    eNewPos = chart2::LegendPosition_LINE_END;
                }
                else if( m_pRbtTop->IsChecked() )
                {
                    eNewPos = chart2::LegendPosition_PAGE_START;
                    eExp = css::chart::ChartLegendExpansion_WIDE;
                }
                else if( m_pRbtBottom->IsChecked() )
                {
                    eNewPos = chart2::LegendPosition_PAGE_END;
                    eExp = css::chart::ChartLegendExpansion_WIDE;
                }

                xProp->setPropertyValue( "AnchorPosition" , uno::Any( eNewPos ));
                xProp->setPropertyValue( "Expansion" , uno::Any( eExp ));
                xProp->setPropertyValue( "RelativePosition" , uno::Any());
            }
        }
        catch( const uno::Exception & )
        {
            DBG_UNHANDLED_EXCEPTION("chart2" );
        }
    }

    IMPL_LINK_NOARG(LegendPositionResources, PositionEnableHdl, CheckBox&, void)
    {
        bool bEnable = m_pCbxShow == nullptr || m_pCbxShow->IsChecked();

        m_pRbtLeft->Enable( bEnable );
        m_pRbtTop->Enable( bEnable );
        m_pRbtRight->Enable( bEnable );
        m_pRbtBottom->Enable( bEnable );

        m_aChangeLink.Call(nullptr);
    }

    void LegendPositionResources::initFromItemSet( const SfxItemSet& rInAttrs )
    {
        const SfxPoolItem* pPoolItem = nullptr;
        if( rInAttrs.GetItemState( SCHATTR_LEGEND_POS, true, &pPoolItem ) == SfxItemState::SET )
        {
            chart2::LegendPosition nLegendPosition = static_cast<chart2::LegendPosition>(static_cast<const SfxInt32Item*>(pPoolItem)->GetValue());
            switch( nLegendPosition )
            {
                case chart2::LegendPosition_LINE_START:
                    m_pRbtLeft->Check();
                    break;
                case chart2::LegendPosition_PAGE_START:
                    m_pRbtTop->Check();
                    break;
                case chart2::LegendPosition_LINE_END:
                    m_pRbtRight->Check();
                    break;
                case chart2::LegendPosition_PAGE_END:
                    m_pRbtBottom->Check();
                    break;
                default:
                    break;
            }
        }

        if( m_pCbxShow && rInAttrs.GetItemState( SCHATTR_LEGEND_SHOW, true, &pPoolItem ) == SfxItemState::SET )
        {
            bool bShow = static_cast< const SfxBoolItem * >( pPoolItem )->GetValue();
            m_pCbxShow->Check(bShow);
        }
    }

    void LegendPositionResources::writeToItemSet( SfxItemSet& rOutAttrs ) const
    {
        chart2::LegendPosition nLegendPosition = chart2::LegendPosition_CUSTOM;
        if( m_pRbtLeft->IsChecked() )
            nLegendPosition = chart2::LegendPosition_LINE_START;
        else if( m_pRbtTop->IsChecked() )
            nLegendPosition = chart2::LegendPosition_PAGE_START;
        else if( m_pRbtRight->IsChecked() )
            nLegendPosition = chart2::LegendPosition_LINE_END;
        else if( m_pRbtBottom->IsChecked() )
            nLegendPosition = chart2::LegendPosition_PAGE_END;
        rOutAttrs.Put( SfxInt32Item(SCHATTR_LEGEND_POS, static_cast<sal_Int32>(nLegendPosition) ) );

        rOutAttrs.Put( SfxBoolItem(SCHATTR_LEGEND_SHOW, m_pCbxShow == nullptr || m_pCbxShow->IsChecked()) );
    }

    IMPL_LINK( LegendPositionResources, PositionChangeHdl, RadioButton&, rRadio, void )
    {
        //for each radio click there are coming two change events
        //first uncheck of previous button -> ignore that call
        //the second call gives the check of the new button
        if( rRadio.IsChecked() )
            m_aChangeLink.Call(nullptr);
    }

    void LegendPositionResources::SetChangeHdl( const Link<LinkParamNone*,void>& rLink )
    {
        m_aChangeLink = rLink;
    }

    } //namespace chart

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

↑ V614 Potentially uninitialized variable 'eNewPos' used. Consider checking the first actual argument of the 'Any' function.