/* -*- 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/attribute/strokeattribute.hxx>

#include <numeric>

namespace drawinglayer::attribute

{

        class ImpStrokeAttribute

        {

        public:

            // data definitions

            std::vector< double >                     maDotDashArray;         // array of double which defines the dot-dash pattern

            double                                      mfFullDotDashLen;       // sum of maDotDashArray (for convenience)

            ImpStrokeAttribute(

                std::vector< double >&& rDotDashArray,

                double fFullDotDashLen)

            :   maDotDashArray(std::move(rDotDashArray)),

                mfFullDotDashLen(fFullDotDashLen)

            {

            }

            ImpStrokeAttribute()

            :   mfFullDotDashLen(0.0)

            {

            }

            // data read access

            const std::vector< double >& getDotDashArray() const { return maDotDashArray; }

            double getFullDotDashLen() const

            {

                if(0.0 == mfFullDotDashLen && !maDotDashArray.empty())

                {

                    // calculate length on demand

                    const double fAccumulated(std::accumulate(maDotDashArray.begin(), maDotDashArray.end(), 0.0));

                    const_cast< ImpStrokeAttribute* >(this)->mfFullDotDashLen = fAccumulated;

                }

                return mfFullDotDashLen;

            }

            bool operator==(const ImpStrokeAttribute& rCandidate) const

            {

                return (getDotDashArray() == rCandidate.getDotDashArray()

                    && getFullDotDashLen() == rCandidate.getFullDotDashLen());

            }

        };

        namespace

        {

            StrokeAttribute::ImplType& theGlobalDefault()

            {

                static StrokeAttribute::ImplType SINGLETON;

                return SINGLETON;

            }

        }

        StrokeAttribute::StrokeAttribute(

            std::vector< double >&& rDotDashArray,

            double fFullDotDashLen)

        :   mpStrokeAttribute(ImpStrokeAttribute(

                std::move(rDotDashArray), fFullDotDashLen))

        {

        }

        StrokeAttribute::StrokeAttribute()

        :   mpStrokeAttribute(theGlobalDefault())

        {

        }

        StrokeAttribute::StrokeAttribute(const StrokeAttribute&) = default;

        StrokeAttribute::StrokeAttribute(StrokeAttribute&&) = default;

        StrokeAttribute::~StrokeAttribute() = default;

        bool StrokeAttribute::isDefault() const

        {

            return mpStrokeAttribute.same_object(theGlobalDefault());

        }

        StrokeAttribute& StrokeAttribute::operator=(const StrokeAttribute&) = default;

        StrokeAttribute& StrokeAttribute::operator=(StrokeAttribute&&) = default;

        bool StrokeAttribute::operator==(const StrokeAttribute& rCandidate) const

        {

            // tdf#87509 default attr is always != non-default attr, even with same values

            if(rCandidate.isDefault() != isDefault())

                return false;

            return rCandidate.mpStrokeAttribute == mpStrokeAttribute;

        }

        const std::vector< double >& StrokeAttribute::getDotDashArray() const

        {

            return mpStrokeAttribute->getDotDashArray();

        }

        double StrokeAttribute::getFullDotDashLen() const

        {

            return mpStrokeAttribute->getFullDotDashLen();

        }

} // end of namespace

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