/* -*- 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 <svgrectnode.hxx>

#include <basegfx/polygon/b2dpolygon.hxx>

#include <basegfx/polygon/b2dpolygontools.hxx>

#include <basegfx/polygon/b2dpolypolygon.hxx>

namespace svgio::svgreader

{

        SvgRectNode::SvgRectNode(

            SvgDocument& rDocument,

            SvgNode* pParent)

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

            maSvgStyleAttributes(*this),

            maX(0),

            maY(0),

            maWidth(0),

            maHeight(0)

        {

        }

        SvgRectNode::~SvgRectNode()

        {

        }

        const SvgStyleAttributes* SvgRectNode::getSvgStyleAttributes() const

        {

            return checkForCssStyle(maSvgStyleAttributes);

        }

        void SvgRectNode::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::X:

                {

                    SvgNumber aNum;

                    if(readSingleNumber(aContent, aNum))

                    {

                        maX = aNum;

                    }

                    break;

                }

                case SVGToken::Y:

                {

                    SvgNumber aNum;

                    if(readSingleNumber(aContent, aNum))

                    {

                        maY = aNum;

                    }

                    break;

                }

                case SVGToken::Width:

                {

                    SvgNumber aNum;

                    if(readSingleNumber(aContent, aNum))

                    {

                        if(aNum.isPositive())

                        {

                            maWidth = aNum;

                        }

                    }

                    break;

                }

                case SVGToken::Height:

                {

                    SvgNumber aNum;

                    if(readSingleNumber(aContent, aNum))

                    {

                        if(aNum.isPositive())

                        {

                            maHeight = aNum;

                        }

                    }

                    break;

                }

                case SVGToken::Rx:

                {

                    SvgNumber aNum;

                    if(readSingleNumber(aContent, aNum))

                    {

                        if(aNum.isPositive())

                        {

                            maRx = aNum;

                        }

                    }

                    break;

                }

                case SVGToken::Ry:

                {

                    SvgNumber aNum;

                    if(readSingleNumber(aContent, aNum))

                    {

                        if(aNum.isPositive())

                        {

                            maRy = aNum;

                        }

                    }

                    break;

                }

                case SVGToken::Transform:

                {

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

                    if(!aMatrix.isIdentity())

                    {

                        setTransform(aMatrix);

                    }

                    break;

                }

                default:

                {

                    break;

                }

            }

        }

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

        {

            // get size range and create path

            const SvgStyleAttributes* pStyle = getSvgStyleAttributes();

            if(!(pStyle && getWidth().isSet() && getHeight().isSet()))

                return;

            const double fWidth(getWidth().solve(*this, NumberType::xcoordinate));

            const double fHeight(getHeight().solve(*this, NumberType::ycoordinate));

            if(fWidth <= 0.0 || fHeight <= 0.0)

                return;

            const double fX(getX().isSet() ? getX().solve(*this, NumberType::xcoordinate) : 0.0);

            const double fY(getY().isSet() ? getY().solve(*this, NumberType::ycoordinate) : 0.0);

            const basegfx::B2DRange aRange(fX, fY, fX + fWidth, fY + fHeight);

            basegfx::B2DPolygon aPath;

            if(getRx().isSet() || getRy().isSet())

            {

                double frX(getRx().isSet() ? getRx().solve(*this, NumberType::xcoordinate) : 0.0);

                double frY(getRy().isSet() ? getRy().solve(*this, NumberType::ycoordinate) : 0.0);

                if(!getRy().isSet() && 0.0 == frY && frX > 0.0)

                {

                    frY = frX;

                }

                else if(!getRx().isSet() && 0.0 == frX && frY > 0.0)

                {

                    frX = frY;

                }

                assert(fWidth != 0 && fHeight != 0 && "help coverity see it's not zero");

                frX /= fWidth;

                frY /= fHeight;

                frX = std::min(0.5, frX);

                frY = std::min(0.5, frY);

                aPath = basegfx::utils::createPolygonFromRect(aRange, frX * 2.0, frY * 2.0);

            }

            else

            {

                aPath = basegfx::utils::createPolygonFromRect(aRange);

            }

            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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