    /* -*- 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 <memory>
    #include <ViewElementListProvider.hxx>
    #include <chartview/DrawModelWrapper.hxx>
    #include <chartview/DataPointSymbolSupplier.hxx>
    #include <DrawViewWrapper.hxx>

    #include <com/sun/star/drawing/Direction3D.hpp>

    #include <svx/xtable.hxx>
    #include <svx/XPropertyTable.hxx>
    #include <svx/unofill.hxx>
    #include <svx/unoapi.hxx>
    #include <svx/xit.hxx>
    #include <svx/xbtmpit.hxx>
    #include <svx/xflftrit.hxx>
    #include <svx/xlndsit.hxx>
    #include <svx/xflhtit.hxx>
    #include <svx/xflgrit.hxx>
    #include <svx/xlnstit.hxx>
    #include <svx/xlnedit.hxx>
    #include <svl/itempool.hxx>
    #include <svtools/ctrltool.hxx>
    #include <vcl/svapp.hxx>
    #include <svx/svdobj.hxx>
    #include <vcl/virdev.hxx>
    #include <svx/svdview.hxx>
    #include <svx/svdpage.hxx>
    #include <sal/log.hxx>

    namespace chart
    {
    using namespace ::com::sun::star;

    ViewElementListProvider::ViewElementListProvider( DrawModelWrapper* pDrawModelWrapper )
                            : m_pDrawModelWrapper( pDrawModelWrapper )
    {
    }

    ViewElementListProvider::ViewElementListProvider( ViewElementListProvider&& rOther )
    {
        m_pDrawModelWrapper = rOther.m_pDrawModelWrapper;
        m_pFontList = std::move(rOther.m_pFontList);
    }

    ViewElementListProvider::~ViewElementListProvider()
    {
    }

    XColorListRef   ViewElementListProvider::GetColorTable() const
    {
        if(m_pDrawModelWrapper)
            return m_pDrawModelWrapper->GetColorList();
        return XColorListRef();
    }

    XDashListRef     ViewElementListProvider::GetDashList() const
    {
        if(m_pDrawModelWrapper)
            return m_pDrawModelWrapper->GetDashList();
        return XDashListRef();
    }

    XLineEndListRef  ViewElementListProvider::GetLineEndList() const
    {
        if(m_pDrawModelWrapper)
            return m_pDrawModelWrapper->GetLineEndList();
        return XLineEndListRef();
    }

    XGradientListRef ViewElementListProvider::GetGradientList() const
    {
        if(m_pDrawModelWrapper)
            return m_pDrawModelWrapper->GetGradientList();
        return XGradientListRef();
    }
    XHatchListRef    ViewElementListProvider::GetHatchList() const
    {
        if(m_pDrawModelWrapper)
            return m_pDrawModelWrapper->GetHatchList();
        return nullptr;
    }

    XBitmapListRef   ViewElementListProvider::GetBitmapList() const
    {
        if(m_pDrawModelWrapper)
            return m_pDrawModelWrapper->GetBitmapList();
        return XBitmapListRef();
    }

    XPatternListRef   ViewElementListProvider::GetPatternList() const
    {
        if(m_pDrawModelWrapper)
            return m_pDrawModelWrapper->GetPatternList();
        return XPatternListRef();
    }

    //create chartspecific symbols for linecharts
    SdrObjList* ViewElementListProvider::GetSymbolList() const
    {
        SdrObjList* pSymbolList = nullptr;
        uno::Reference< drawing::XShapes > xSymbols;//@todo this keeps the first drawinglayer alive ...
        try
        {
            if(!pSymbolList || !pSymbolList->GetObjCount())
            {
                //@todo use mutex

                //get shape factory
                uno::Reference< lang::XMultiServiceFactory > xShapeFactory( m_pDrawModelWrapper->getShapeFactory() );

                //get hidden draw page (target):
                uno::Reference<drawing::XShapes> xTarget( m_pDrawModelWrapper->getHiddenDrawPage(), uno::UNO_QUERY );

                //create symbols via uno and convert to native sdr objects
                drawing::Direction3D aSymbolSize(220,220,0); // should be 250, but 250 -> 280 ??
                xSymbols =  DataPointSymbolSupplier::create2DSymbolList( xShapeFactory, xTarget, aSymbolSize );

                SdrObject* pSdrObject = DrawViewWrapper::getSdrObject( uno::Reference< drawing::XShape >( xSymbols, uno::UNO_QUERY ) );
                if(pSdrObject)
                    pSymbolList = pSdrObject->GetSubList();
            }
        }
        catch( const uno::Exception& e )
        {
            SAL_WARN("chart2", "Exception caught. " << e );
        }
        return pSymbolList;
    }

    Graphic ViewElementListProvider::GetSymbolGraphic( sal_Int32 nStandardSymbol, const SfxItemSet* pSymbolShapeProperties ) const
    {
        SdrObjList* pSymbolList = GetSymbolList();
        if( !pSymbolList->GetObjCount() )
            return Graphic();
        if(nStandardSymbol<0)
            nStandardSymbol*=-1;
        if( static_cast<size_t>(nStandardSymbol) >= pSymbolList->GetObjCount() )
            nStandardSymbol %= pSymbolList->GetObjCount();
        SdrObject* pObj = pSymbolList->GetObj(nStandardSymbol);

        ScopedVclPtrInstance< VirtualDevice > pVDev;
        pVDev->SetMapMode(MapMode(MapUnit::Map100thMM));

        std::unique_ptr<SdrModel> pModel(
            new SdrModel());

        pModel->GetItemPool().FreezeIdRanges();
        SdrPage* pPage = new SdrPage( *pModel, false );
        pPage->SetSize(Size(1000,1000));
        pModel->InsertPage( pPage, 0 );
        std::unique_ptr<SdrView> pView( new SdrView( *pModel.get(), pVDev ) );
        pView->hideMarkHandles();
        SdrPageView* pPageView = pView->ShowSdrPage(pPage);

        // directly clone to target SdrModel
        pObj = pObj->CloneSdrObject(*pModel);

        pPage->NbcInsertObject(pObj);
        pView->MarkObj(pObj,pPageView);
        if( pSymbolShapeProperties )
            pObj->SetMergedItemSet(*pSymbolShapeProperties);

        GDIMetaFile aMeta(pView->GetMarkedObjMetaFile());

        Graphic aGraph(aMeta);
        Size aSize = pObj->GetSnapRect().GetSize();
        aGraph.SetPrefSize(aSize);
        aGraph.SetPrefMapMode(MapMode(MapUnit::Map100thMM));

        pView->UnmarkAll();
        pObj=pPage->RemoveObject(0);
        SdrObject::Free( pObj );

        return aGraph;
    }

    FontList* ViewElementListProvider::getFontList() const
    {
        //was old chart:
        //SvxFontListItem* SfxObjectShell::.GetItem(SID_ATTR_CHAR_FONTLIST)

        if(!m_pFontList)
        {
            OutputDevice* pRefDev    = m_pDrawModelWrapper ? m_pDrawModelWrapper->getReferenceDevice() : nullptr;
            OutputDevice* pDefaultOut = Application::GetDefaultDevice();
            m_pFontList.reset( new FontList( pRefDev ? pRefDev    : pDefaultOut
                                           , pRefDev ? pDefaultOut : nullptr) );
        }
        return m_pFontList.get();
    }
    } //namespace chart

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

↑ V560 A part of conditional expression is always true: !pSymbolList.