/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

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 *

 * 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

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 *   ownership. The ASF licenses this file to you under the Apache

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#include <drawinglayer/processor2d/textaspolygonextractor2d.hxx>

#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>

#include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx>

#include <drawinglayer/primitive2d/PolyPolygonHairlinePrimitive2D.hxx>

#include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>

#include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx>

#include <drawinglayer/primitive2d/transformprimitive2d.hxx>

namespace drawinglayer::processor2d

{

        void TextAsPolygonExtractor2D::processTextPrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)

        {

            // PRIMITIVE2D_ID_TEXTDECORATEDPORTIONPRIMITIVE2D

            // TextDecoratedPortionPrimitive2D can produce the following primitives

            // when being decomposed:

            //

            // - TextSimplePortionPrimitive2D

            // - PolygonWavePrimitive2D

            //      - PolygonStrokePrimitive2D

            // - PolygonStrokePrimitive2D

            //      - PolyPolygonColorPrimitive2D

            //      - PolyPolygonHairlinePrimitive2D

            //          - PolygonHairlinePrimitive2D

            // - ShadowPrimitive2D

            //      - ModifiedColorPrimitive2D

            //      - TransformPrimitive2D

            // - TextEffectPrimitive2D

            //      - ModifiedColorPrimitive2D

            //      - TransformPrimitive2D

            //      - GroupPrimitive2D

            // PRIMITIVE2D_ID_TEXTSIMPLEPORTIONPRIMITIVE2D

            // TextSimplePortionPrimitive2D can produce the following primitives

            // when being decomposed:

            //

            // - PolyPolygonColorPrimitive2D

            // - TextEffectPrimitive2D

            //      - ModifiedColorPrimitive2D

            //      - TransformPrimitive2D

            //      - GroupPrimitive2D

            // encapsulate with flag and use decomposition

            mnInText++;

            process(rCandidate);

            mnInText--;

        }

        void TextAsPolygonExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)

        {

            switch (rCandidate.getPrimitive2DID())

            {

                // as can be seen from the TextSimplePortionPrimitive2D and the

                // TextDecoratedPortionPrimitive2D, inside of the mnInText marks

                // the following primitives can occur containing geometry data

                // from text decomposition:

                //

                // - PolyPolygonColorPrimitive2D

                // - PolygonHairlinePrimitive2D

                // - PolyPolygonHairlinePrimitive2D (for convenience)

                //

                case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :

                {

                    if(mnInText)

                    {

                        const primitive2d::PolyPolygonColorPrimitive2D& rPoPoCoCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));

                        basegfx::B2DPolyPolygon aPolyPolygon(rPoPoCoCandidate.getB2DPolyPolygon());

                        if(aPolyPolygon.count())

                        {

                            // transform the PolyPolygon

                            aPolyPolygon.transform(getViewInformation2D().getObjectToViewTransformation());

                            // get evtl. corrected color

                            const basegfx::BColor aColor(maBColorModifierStack.getModifiedColor(rPoPoCoCandidate.getBColor()));

                            // add to result vector

                            maTarget.emplace_back(aPolyPolygon, aColor, true);

                        }

                    }

                    break;

                }

                case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :

                {

                    if(mnInText)

                    {

                        const primitive2d::PolygonHairlinePrimitive2D& rPoHaCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));

                        basegfx::B2DPolygon aPolygon(rPoHaCandidate.getB2DPolygon());

                        if(aPolygon.count())

                        {

                            // transform the Polygon

                            aPolygon.transform(getViewInformation2D().getObjectToViewTransformation());

                            // get evtl. corrected color

                            const basegfx::BColor aColor(maBColorModifierStack.getModifiedColor(rPoHaCandidate.getBColor()));

                            // add to result vector

                            maTarget.emplace_back(basegfx::B2DPolyPolygon(aPolygon), aColor, false);

                        }

                    }

                    break;

                }

                case PRIMITIVE2D_ID_POLYPOLYGONHAIRLINEPRIMITIVE2D :

                {

                    if(mnInText)

                    {

                        const primitive2d::PolyPolygonHairlinePrimitive2D& rPoPoHaCandidate(static_cast< const primitive2d::PolyPolygonHairlinePrimitive2D& >(rCandidate));

                        basegfx::B2DPolyPolygon aPolyPolygon(rPoPoHaCandidate.getB2DPolyPolygon());

                        if(aPolyPolygon.count())

                        {

                            // transform the Polygon

                            aPolyPolygon.transform(getViewInformation2D().getObjectToViewTransformation());

                            // get evtl. corrected color

                            const basegfx::BColor aColor(maBColorModifierStack.getModifiedColor(rPoPoHaCandidate.getBColor()));

                            // add to result vector

                            maTarget.emplace_back(aPolyPolygon, aColor, false);

                        }

                    }

                    break;

                }

                // usage of color modification stack is needed

                case PRIMITIVE2D_ID_MODIFIEDCOLORPRIMITIVE2D :

                {

                    const primitive2d::ModifiedColorPrimitive2D& rModifiedColorCandidate(static_cast< const primitive2d::ModifiedColorPrimitive2D& >(rCandidate));

                    if(!rModifiedColorCandidate.getChildren().empty())

                    {

                        maBColorModifierStack.push(rModifiedColorCandidate.getColorModifier());

                        process(rModifiedColorCandidate.getChildren());

                        maBColorModifierStack.pop();

                    }

                    break;

                }

                // usage of transformation stack is needed

                case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :

                {

                    // remember current transformation and ViewInformation

                    const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));

                    const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());

                    // create new transformations for CurrentTransformation and for local ViewInformation2D

                    geometry::ViewInformation2D aViewInformation2D(getViewInformation2D());

                    aViewInformation2D.setObjectTransformation(getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation());

                    setViewInformation2D(aViewInformation2D);

                    // process content

                    process(rTransformCandidate.getChildren());

                    // restore transformations

                    setViewInformation2D(aLastViewInformation2D);

                    break;

                }

                default:

                    TextExtractor2D::processBasePrimitive2D(rCandidate);

                    break;

            }

        }

        TextAsPolygonExtractor2D::TextAsPolygonExtractor2D(const geometry::ViewInformation2D& rViewInformation)

        :   TextExtractor2D(rViewInformation),

            maBColorModifierStack(),

            mnInText(0)

        {

        }

        TextAsPolygonExtractor2D::~TextAsPolygonExtractor2D()

        {

        }

} // end of namespace

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