/* -*- 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 <svglinenode.hxx>

#include <basegfx/polygon/b2dpolygon.hxx>

#include <basegfx/polygon/b2dpolypolygon.hxx>

namespace svgio::svgreader

{

        SvgLineNode::SvgLineNode(

            SvgDocument& rDocument,

            SvgNode* pParent)

        :   SvgNode(SVGToken::Line, rDocument, pParent),

            maSvgStyleAttributes(*this),

            maX1(0),

            maY1(0),

            maX2(0),

            maY2(0)

        {

        }

        SvgLineNode::~SvgLineNode()

        {

        }

        const SvgStyleAttributes* SvgLineNode::getSvgStyleAttributes() const

        {

            return checkForCssStyle(maSvgStyleAttributes);

        }

        void SvgLineNode::parseAttribute(SVGToken aSVGToken, const OUString& aContent)

        {

            // call parent

            SvgNode::parseAttribute(aSVGToken, aContent);

            // read style attributes

            maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent);

            // parse own

            switch(aSVGToken)

            {

                case SVGToken::Style:

                {

                    readLocalCssStyle(aContent);

                    break;

                }

                case SVGToken::X1:

                {

                    SvgNumber aNum;

                    if(readSingleNumber(aContent, aNum))

                    {

                        maX1 = aNum;

                    }

                    break;

                }

                case SVGToken::Y1:

                {

                    SvgNumber aNum;

                    if(readSingleNumber(aContent, aNum))

                    {

                        maY1 = aNum;

                    }

                    break;

                }

                case SVGToken::X2:

                {

                    SvgNumber aNum;

                    if(readSingleNumber(aContent, aNum))

                    {

                        maX2 = aNum;

                    }

                    break;

                }

                case SVGToken::Y2:

                {

                    SvgNumber aNum;

                    if(readSingleNumber(aContent, aNum))

                    {

                        maY2 = aNum;

                    }

                    break;

                }

                case SVGToken::Transform:

                {

                    const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));

                    if(!aMatrix.isIdentity())

                    {

                        setTransform(aMatrix);

                    }

                    break;

                }

                default:

                {

                    break;

                }

            }

        }

        void SvgLineNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced*/) const

        {

            const SvgStyleAttributes* pStyle = getSvgStyleAttributes();

            if(!pStyle)

                return;

            const basegfx::B2DPoint X(

                getX1().isSet() ? getX1().solve(*this, NumberType::xcoordinate) : 0.0,

                getY1().isSet() ? getY1().solve(*this, NumberType::ycoordinate) : 0.0);

            const basegfx::B2DPoint Y(

                getX2().isSet() ? getX2().solve(*this, NumberType::xcoordinate) : 0.0,

                getY2().isSet() ? getY2().solve(*this, NumberType::ycoordinate) : 0.0);

            // X and Y may be equal, do not drop them. Markers or linecaps 'round' and 'square'

            // need to be drawn for zero-length lines too.

            basegfx::B2DPolygon aPath;

            aPath.append(X);

            aPath.append(Y);

            drawinglayer::primitive2d::Primitive2DContainer aNewTarget;

            pStyle->add_path(basegfx::B2DPolyPolygon(aPath), aNewTarget, nullptr);

            if(!aNewTarget.empty())

            {

                pStyle->add_postProcess(rTarget, std::move(aNewTarget), getTransform());

            }

        }

} // end of namespace svgio::svgreader

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