    /* -*- 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 <drawinglayer/primitive3d/baseprimitive3d.hxx>
    #include <drawinglayer/geometry/viewinformation3d.hxx>
    #include <basegfx/utils/canvastools.hxx>
    #include <comphelper/sequence.hxx>

    using namespace com::sun::star;

    namespace drawinglayer
    {
        namespace primitive3d
        {
            BasePrimitive3D::BasePrimitive3D()
            :   BasePrimitive3DImplBase(m_aMutex)
            {
            }

            BasePrimitive3D::~BasePrimitive3D()
            {
            }

            bool BasePrimitive3D::operator==( const BasePrimitive3D& rPrimitive ) const
            {
                return (getPrimitive3DID() == rPrimitive.getPrimitive3DID());
            }

            basegfx::B3DRange BasePrimitive3D::getB3DRange(const geometry::ViewInformation3D& rViewInformation) const
            {
                return get3DDecomposition(rViewInformation).getB3DRange(rViewInformation);
            }

            Primitive3DContainer BasePrimitive3D::get3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const
            {
                return Primitive3DContainer();
            }

            Primitive3DSequence SAL_CALL BasePrimitive3D::getDecomposition( const uno::Sequence< beans::PropertyValue >& rViewParameters )
            {
                const geometry::ViewInformation3D aViewInformation(rViewParameters);
                return comphelper::containerToSequence(get3DDecomposition(aViewInformation));
            }

            css::geometry::RealRectangle3D SAL_CALL BasePrimitive3D::getRange( const uno::Sequence< beans::PropertyValue >& rViewParameters )
            {
                const geometry::ViewInformation3D aViewInformation(rViewParameters);
                return basegfx::unotools::rectangle3DFromB3DRectangle(getB3DRange(aViewInformation));
            }
        } // end of namespace primitive3d
    } // end of namespace drawinglayer

    namespace drawinglayer
    {
        namespace primitive3d
        {
            Primitive3DContainer BufferedDecompositionPrimitive3D::create3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const
            {
                return Primitive3DContainer();
            }

            BufferedDecompositionPrimitive3D::BufferedDecompositionPrimitive3D()
            :   BasePrimitive3D(),
                maBuffered3DDecomposition()
            {
            }

            Primitive3DContainer BufferedDecompositionPrimitive3D::get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const
            {
                ::osl::MutexGuard aGuard( m_aMutex );

                if(getBuffered3DDecomposition().empty())
                {
                    const Primitive3DContainer aNewSequence(create3DDecomposition(rViewInformation));
                    const_cast< BufferedDecompositionPrimitive3D* >(this)->setBuffered3DDecomposition(aNewSequence);
                }

                return getBuffered3DDecomposition();
            }
        } // end of namespace primitive3d
    } // end of namespace drawinglayer

    // tooling

    namespace drawinglayer
    {
        namespace primitive3d
        {
            // get range3D from a given Primitive3DReference
            basegfx::B3DRange getB3DRangeFromPrimitive3DReference(const Primitive3DReference& rCandidate, const geometry::ViewInformation3D& aViewInformation)
            {
                basegfx::B3DRange aRetval;

                if(rCandidate.is())
                {
                    // try to get C++ implementation base
                    const BasePrimitive3D* pCandidate(dynamic_cast< BasePrimitive3D* >(rCandidate.get()));

                    if(pCandidate)
                    {
                        // use it if possible
                        aRetval.expand(pCandidate->getB3DRange(aViewInformation));
                    }
                    else
                    {
                        // use UNO API call instead
                        const uno::Sequence< beans::PropertyValue >& rViewParameters(aViewInformation.getViewInformationSequence());
                        aRetval.expand(basegfx::unotools::b3DRectangleFromRealRectangle3D(rCandidate->getRange(rViewParameters)));
                    }
                }

                return aRetval;
            }

            // get range3D from a given Primitive3DContainer
            basegfx::B3DRange Primitive3DContainer::getB3DRange(const geometry::ViewInformation3D& aViewInformation) const
            {
                basegfx::B3DRange aRetval;

                if(!empty())
                {
                    const size_t nCount(size());

                    for(size_t a(0); a < nCount; a++)
                    {
                        aRetval.expand(getB3DRangeFromPrimitive3DReference((*this)[a], aViewInformation));
                    }
                }

                return aRetval;
            }

            bool arePrimitive3DReferencesEqual(const Primitive3DReference& rxA, const Primitive3DReference& rxB)
            {
                const bool bAIs(rxA.is());

                if(bAIs != rxB.is())
                {
                    return false;
                }

                if(!bAIs)
                {
                    return true;
                }

                const BasePrimitive3D* pA(dynamic_cast< const BasePrimitive3D* >(rxA.get()));
                const BasePrimitive3D* pB(dynamic_cast< const BasePrimitive3D* >(rxB.get()));
                const bool bAEqualZero(pA == nullptr);

                if(bAEqualZero != (pB == nullptr))
                {
                    return false;
                }

                if(bAEqualZero)
                {
                    return false;
                }

                return pA->operator==(*pB);
            }

            bool Primitive3DContainer::operator==(const Primitive3DContainer& rB) const
            {
                const bool bAHasElements(!empty());

                if(bAHasElements != !rB.empty())
                {
                    return false;
                }

                if(!bAHasElements)
                {
                    return true;
                }

                const size_t nCount(size());

                if(nCount != rB.size())
                {
                    return false;
                }

                for(size_t a(0); a < nCount; a++)
                {
                    if(!arePrimitive3DReferencesEqual((*this)[a], rB[a]))
                    {
                        return false;
                    }
                }

                return true;
            }

            void Primitive3DContainer::append(const Primitive3DContainer& rSource)
            {
                insert(end(), rSource.begin(), rSource.end());
            }

        } // end of namespace primitive3d
    } // end of namespace drawinglayer

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

↑ V522 There might be dereferencing of a potential null pointer 'pB'.

↑ V522 There might be dereferencing of a potential null pointer 'pA'.