/* -*- 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 .

 */

#pragma once

#include <drawinglayer/drawinglayerdllapi.h>

#include <drawinglayer/processor2d/textextractor2d.hxx>

#include <basegfx/polygon/b2dpolypolygon.hxx>

#include <basegfx/color/bcolor.hxx>

#include <basegfx/color/bcolormodifier.hxx>

#include <utility>

#include <vector>

namespace drawinglayer::processor2d

    {

        /// helper data structure for returning the result

        struct DRAWINGLAYER_DLLPUBLIC TextAsPolygonDataNode

        {

        private:

            basegfx::B2DPolyPolygon                 maB2DPolyPolygon;

            basegfx::BColor                         maBColor;

            bool                                    mbIsFilled;

        public:

            TextAsPolygonDataNode(

                basegfx::B2DPolyPolygon aB2DPolyPolygon,

                const basegfx::BColor& rBColor,

                bool bIsFilled)

            :   maB2DPolyPolygon(std::move(aB2DPolyPolygon)),

                maBColor(rBColor),

                mbIsFilled(bIsFilled)

            {

            }

            // data read access

            const basegfx::B2DPolyPolygon& getB2DPolyPolygon() const { return maB2DPolyPolygon; }

            const basegfx::BColor& getBColor() const { return maBColor; }

            bool getIsFilled() const { return mbIsFilled; }

        };

        /// typedef for a vector of that helper data

        typedef ::std::vector< TextAsPolygonDataNode > TextAsPolygonDataNodeVector;

        /** TextAsPolygonExtractor2D class

            This processor extracts text in the fed primitives to filled polygons

         */

        class DRAWINGLAYER_DLLPUBLIC TextAsPolygonExtractor2D final : public TextExtractor2D

        {

        private:

            // extraction target

            TextAsPolygonDataNodeVector             maTarget;

            // the modifiedColorPrimitive stack

            basegfx::BColorModifierStack            maBColorModifierStack;

            // flag if we are in a decomposed text

            sal_uInt32                              mnInText;

            // tooling methods

            void processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate) override;

            void processTextPrimitive2D(const primitive2d::BasePrimitive2D& rCandidate) override;

        public:

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

            virtual ~TextAsPolygonExtractor2D() override;

            // data read access

            const TextAsPolygonDataNodeVector& getTarget() const { return maTarget; }

        };

} // end of namespace drawinglayer::processor2d

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