/* -*- 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 <primitive2d/textlineprimitive2d.hxx>

#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>

#include <drawinglayer/attribute/strokeattribute.hxx>

#include <drawinglayer/attribute/lineattribute.hxx>

#include <basegfx/matrix/b2dhommatrixtools.hxx>

#include <drawinglayer/primitive2d/transformprimitive2d.hxx>

#include <drawinglayer/primitive2d/PolygonWavePrimitive2D.hxx>

#include <utility>

namespace drawinglayer::primitive2d

{

        Primitive2DReference TextLinePrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const

        {

            if(TEXT_LINE_NONE == getTextLine())

                return nullptr;

            bool bDoubleLine(false);

            bool bWaveLine(false);

            bool bBoldLine(false);

            const int* pDotDashArray(nullptr);

            basegfx::B2DLineJoin eLineJoin(basegfx::B2DLineJoin::NONE);

            double fOffset(getOffset());

            double fHeight(getHeight());

            static const int aDottedArray[]     = { 1, 1, 0};               // DOTTED LINE

            static const int aDotDashArray[]    = { 1, 1, 4, 1, 0};         // DASHDOT

            static const int aDashDotDotArray[] = { 1, 1, 1, 1, 4, 1, 0};   // DASHDOTDOT

            static const int aDashedArray[]     = { 5, 2, 0};               // DASHED LINE

            static const int aLongDashArray[]   = { 7, 2, 0};               // LONGDASH

            // get decomposition

            basegfx::B2DVector aScale, aTranslate;

            double fRotate, fShearX;

            getObjectTransformation().decompose(aScale, aTranslate, fRotate, fShearX);

            switch(getTextLine())

            {

                default: // case TEXT_LINE_SINGLE:

                {

                    break;

                }

                case TEXT_LINE_DOUBLE:

                {

                    bDoubleLine = true;

                    break;

                }

                case TEXT_LINE_DOTTED:

                {

                    pDotDashArray = aDottedArray;

                    break;

                }

                case TEXT_LINE_DASH:

                {

                    pDotDashArray = aDashedArray;

                    break;

                }

                case TEXT_LINE_LONGDASH:

                {

                    pDotDashArray = aLongDashArray;

                    break;

                }

                case TEXT_LINE_DASHDOT:

                {

                    pDotDashArray = aDotDashArray;

                    break;

                }

                case TEXT_LINE_DASHDOTDOT:

                {

                    pDotDashArray = aDashDotDotArray;

                    break;

                }

                case TEXT_LINE_SMALLWAVE:

                case TEXT_LINE_WAVE:

                {

                    bWaveLine = true;

                    break;

                }

                case TEXT_LINE_DOUBLEWAVE:

                {

                    bDoubleLine = true;

                    bWaveLine = true;

                    break;

                }

                case TEXT_LINE_BOLD:

                {

                    bBoldLine = true;

                    break;

                }

                case TEXT_LINE_BOLDDOTTED:

                {

                    bBoldLine = true;

                    pDotDashArray = aDottedArray;

                    break;

                }

                case TEXT_LINE_BOLDDASH:

                {

                    bBoldLine = true;

                    pDotDashArray = aDashedArray;

                    break;

                }

                case TEXT_LINE_BOLDLONGDASH:

                {

                    bBoldLine = true;

                    pDotDashArray = aLongDashArray;

                    break;

                }

                case TEXT_LINE_BOLDDASHDOT:

                {

                    bBoldLine = true;

                    pDotDashArray = aDotDashArray;

                    break;

                }

                case TEXT_LINE_BOLDDASHDOTDOT:

                {

                    bBoldLine = true;

                    pDotDashArray = aDashDotDotArray;

                    break;

                }

                case TEXT_LINE_BOLDWAVE:

                {

                    bWaveLine = true;

                    bBoldLine = true;

                    break;

                }

            }

            if(bBoldLine)

            {

                fHeight *= 2.0;

            }

            if(bDoubleLine)

            {

                fOffset -= 0.50 * fHeight;

                fHeight *= 0.64;

            }

            if(bWaveLine)

            {

                eLineJoin = basegfx::B2DLineJoin::Round;

                fHeight *= 0.25;

            }

            // prepare Line and Stroke Attributes

            const attribute::LineAttribute aLineAttribute(getLineColor(), fHeight, eLineJoin);

            attribute::StrokeAttribute aStrokeAttribute;

            if(pDotDashArray)

            {

                std::vector< double > aDoubleArray;

                for(const int* p = pDotDashArray; *p; ++p)

                {

                    aDoubleArray.push_back(static_cast<double>(*p) * fHeight);

                }

                aStrokeAttribute = attribute::StrokeAttribute(std::move(aDoubleArray));

            }

            // create base polygon and new primitive

            basegfx::B2DPolygon aLine;

            Primitive2DReference aNewPrimitive;

            aLine.append(basegfx::B2DPoint(0.0, fOffset));

            aLine.append(basegfx::B2DPoint(getWidth(), fOffset));

            const basegfx::B2DHomMatrix aUnscaledTransform(

                basegfx::utils::createShearXRotateTranslateB2DHomMatrix(

                    fShearX, fRotate, aTranslate));

            aLine.transform(aUnscaledTransform);

            if(bWaveLine)

            {

                double fWaveWidth(10.6 * fHeight);

                if(TEXT_LINE_SMALLWAVE == getTextLine())

                {

                    fWaveWidth *= 0.7;

                }

                else if(TEXT_LINE_WAVE == getTextLine())

                {

                    // extra multiply to get the same WaveWidth as with the bold version

                    fWaveWidth *= 2.0;

                }

                aNewPrimitive = new PolygonWavePrimitive2D(aLine, aLineAttribute, aStrokeAttribute, fWaveWidth, fWaveWidth * 0.5);

            }

            else

            {

                aNewPrimitive = new PolygonStrokePrimitive2D(std::move(aLine), aLineAttribute, std::move(aStrokeAttribute));

            }

            if(!bDoubleLine)

                return aNewPrimitive;

            // add primitive

            Primitive2DContainer aContainer;

            aContainer.push_back(aNewPrimitive);

            // double line, create 2nd primitive with offset using TransformPrimitive based on

            // already created NewPrimitive

            double fLineDist(2.3 * fHeight);

            if(bWaveLine)

            {

                fLineDist = 6.3 * fHeight;

            }

            // move base point of text to 0.0 and de-rotate

            basegfx::B2DHomMatrix aTransform(basegfx::utils::createTranslateB2DHomMatrix(

                -aTranslate.getX(), -aTranslate.getY()));

            aTransform.rotate(-fRotate);

            // translate in Y by offset

            aTransform.translate(0.0, fLineDist);

            // move back and rotate

            aTransform.rotate(fRotate);

            aTransform.translate(aTranslate.getX(), aTranslate.getY());

            // add transform primitive

            Primitive2DContainer aContent { aNewPrimitive };

            aContainer.push_back(new TransformPrimitive2D(aTransform, std::move(aContent)));

            return new GroupPrimitive2D(std::move(aContainer));

        }

        TextLinePrimitive2D::TextLinePrimitive2D(

            basegfx::B2DHomMatrix aObjectTransformation,

            double fWidth,

            double fOffset,

            double fHeight,

            TextLine eTextLine,

            const basegfx::BColor& rLineColor)

        :   maObjectTransformation(std::move(aObjectTransformation)),

            mfWidth(fWidth),

            mfOffset(fOffset),

            mfHeight(fHeight),

            meTextLine(eTextLine),

            maLineColor(rLineColor)

        {

        }

        bool TextLinePrimitive2D::operator==( const BasePrimitive2D& rPrimitive ) const

        {

            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))

            {

                const TextLinePrimitive2D& rCompare = static_cast<const TextLinePrimitive2D&>(rPrimitive);

                return (getObjectTransformation() == rCompare.getObjectTransformation()

                    && getWidth() == rCompare.getWidth()

                    && getOffset() == rCompare.getOffset()

                    && getHeight() == rCompare.getHeight()

                    && getTextLine() == rCompare.getTextLine()

                    && getLineColor() == rCompare.getLineColor());

            }

            return false;

        }

        // provide unique ID

        sal_uInt32 TextLinePrimitive2D::getPrimitive2DID() const

        {

            return PRIMITIVE2D_ID_TEXTLINEPRIMITIVE2D;

        }

} // end of namespace

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