/* -*- 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 <xmloff/MarkerStyle.hxx>

#include <xexptran.hxx>

#include <xmloff/xmluconv.hxx>

#include <xmloff/xmlnamespace.hxx>

#include <xmloff/xmltoken.hxx>

#include <xmloff/xmlexp.hxx>

#include <xmloff/xmlimp.hxx>

#include <sal/log.hxx>

#include <rtl/ustring.hxx>

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

#include <basegfx/polygon/b2dpolypolygon.hxx>

#include <basegfx/polygon/b2dpolypolygontools.hxx>

#include <basegfx/matrix/b2dhommatrixtools.hxx>

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

using namespace ::xmloff::token;

// Import

XMLMarkerStyleImport::XMLMarkerStyleImport( SvXMLImport& rImp )

    : m_rImport( rImp )

{

}

void XMLMarkerStyleImport::importXML(

    const uno::Reference< xml::sax::XFastAttributeList >& xAttrList,

    uno::Any& rValue,

    OUString& rStrName )

{

    bool bHasViewBox    = false;

    bool bHasPathData   = false;

    OUString aDisplayName;

    std::unique_ptr<SdXMLImExViewBox> xViewBox;

    SvXMLUnitConverter& rUnitConverter = m_rImport.GetMM100UnitConverter();

    OUString strPathData;

    for (auto &aIter : sax_fastparser::castToFastAttributeList( xAttrList ))

    {

        OUString aStrValue = aIter.toString();

        switch (aIter.getToken() & TOKEN_MASK)

        {

            case XML_NAME:

                rStrName = aStrValue;

                break;

            case XML_DISPLAY_NAME:

                aDisplayName = aStrValue;

                break;

            case XML_VIEWBOX:

                xViewBox.reset(new SdXMLImExViewBox(aStrValue, rUnitConverter));

                bHasViewBox = true;

                break;

            case XML_D:

                strPathData = aStrValue;

                bHasPathData = true;

                break;

            default:

                XMLOFF_WARN_UNKNOWN("xmloff.style", aIter);

        }

    }

    if( bHasViewBox && bHasPathData )

    {

        basegfx::B2DPolyPolygon aPolyPolygon;

        if(basegfx::utils::importFromSvgD(aPolyPolygon, strPathData, m_rImport.needFixPositionAfterZ(), nullptr))

        {

            if(aPolyPolygon.count())

            {

                // ViewBox probably not used, but stay with former processing inside of

                // SdXMLImExSvgDElement

                const basegfx::B2DRange aSourceRange(

                    xViewBox->GetX(), xViewBox->GetY(),

                    xViewBox->GetX() + xViewBox->GetWidth(),

                    xViewBox->GetY() + xViewBox->GetHeight());

                const basegfx::B2DRange aTargetRange(

                    0.0, 0.0,

                    xViewBox->GetWidth(), xViewBox->GetHeight());

                if(!aSourceRange.equal(aTargetRange))

                {

                    aPolyPolygon.transform(

                        basegfx::utils::createSourceRangeTargetRangeTransform(

                            aSourceRange,

                            aTargetRange));

                }

                // always use PolyPolygonBezierCoords here

                drawing::PolyPolygonBezierCoords aSourcePolyPolygon;

                basegfx::utils::B2DPolyPolygonToUnoPolyPolygonBezierCoords(

                    aPolyPolygon,

                    aSourcePolyPolygon);

                rValue <<= aSourcePolyPolygon;

            }

        }

        if( !aDisplayName.isEmpty() )

        {

            m_rImport.AddStyleDisplayName( XmlStyleFamily::SD_MARKER_ID, rStrName,

                                        aDisplayName );

            rStrName = aDisplayName;

        }

    }

    xViewBox.reset();

}

// Export

XMLMarkerStyleExport::XMLMarkerStyleExport( SvXMLExport& rExp )

    : m_rExport( rExp )

{

}

void XMLMarkerStyleExport::exportXML(

    const OUString& rStrName,

    const uno::Any& rValue )

{

    if(rStrName.isEmpty())

        return;

    drawing::PolyPolygonBezierCoords aBezier;

    if(!(rValue >>= aBezier))

        return;

    // Name

    bool bEncoded(false);

    m_rExport.AddAttribute(XML_NAMESPACE_DRAW, XML_NAME, m_rExport.EncodeStyleName( rStrName, &bEncoded ) );

    if( bEncoded )

    {

        m_rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_DISPLAY_NAME, rStrName );

    }

    const basegfx::B2DPolyPolygon aPolyPolygon(

        basegfx::utils::UnoPolyPolygonBezierCoordsToB2DPolyPolygon(

            aBezier));

    const basegfx::B2DRange aPolyPolygonRange(aPolyPolygon.getB2DRange());

    // Viewbox (viewBox="0 0 1500 1000")

    SdXMLImExViewBox aViewBox(

        aPolyPolygonRange.getMinX(),

        aPolyPolygonRange.getMinY(),

        aPolyPolygonRange.getWidth(),

        aPolyPolygonRange.getHeight());

    m_rExport.AddAttribute( XML_NAMESPACE_SVG, XML_VIEWBOX, aViewBox.GetExportString() );

    // Pathdata

    const OUString aPolygonString(

        basegfx::utils::exportToSvgD(

            aPolyPolygon,

            true,           // bUseRelativeCoordinates

            false,          // bDetectQuadraticBeziers: not used in old, but maybe activated now

            true));         // bHandleRelativeNextPointCompatible

    // write point array

    m_rExport.AddAttribute(XML_NAMESPACE_SVG, XML_D, aPolygonString);

    // Do Write

    SvXMLElementExport rElem( m_rExport, XML_NAMESPACE_DRAW, XML_MARKER, true, false );

}

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