/* -*- 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 <drawinglayer/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/polygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>



namespace drawinglayer
{
    namespace primitive2d
    {
        Primitive2DSequence TextLinePrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            Primitive2DSequence xRetval;

            if(TEXT_LINE_NONE != getTextLine())
            {
                bool bDoubleLine(false);
                bool bWaveLine(false);
                bool bBoldLine(false);
                const int* pDotDashArray(0);
                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:
                    {
                        bWaveLine = true;
                        break;
                    }
                    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((double)(*p) * fHeight);
                    }

                    aStrokeAttribute = attribute::StrokeAttribute(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::tools::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 = Primitive2DReference(new PolygonWavePrimitive2D(aLine, aLineAttribute, aStrokeAttribute, fWaveWidth, fWaveWidth * 0.5));
                }
                else
                {
                    aNewPrimitive = Primitive2DReference(new PolygonStrokePrimitive2D(aLine, aLineAttribute, aStrokeAttribute));
                }

                // add primitive
                appendPrimitive2DReferenceToPrimitive2DSequence(xRetval, aNewPrimitive);

                if(bDoubleLine)
                {
                    // 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::tools::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
                    const Primitive2DSequence aContent(&aNewPrimitive, 1);
                    appendPrimitive2DReferenceToPrimitive2DSequence(xRetval,
                        Primitive2DReference(new TransformPrimitive2D(aTransform, aContent)));
                }
            }

            return xRetval;
        }

        TextLinePrimitive2D::TextLinePrimitive2D(
            const basegfx::B2DHomMatrix& rObjectTransformation,
            double fWidth,
            double fOffset,
            double fHeight,
            TextLine eTextLine,
            const basegfx::BColor& rLineColor)
        :   BufferedDecompositionPrimitive2D(),
            maObjectTransformation(rObjectTransformation),
            mfWidth(fWidth),
            mfOffset(fOffset),
            mfHeight(fHeight),
            meTextLine(eTextLine),
            maLineColor(rLineColor)
        {
        }

        bool TextLinePrimitive2D::operator==( const BasePrimitive2D& rPrimitive ) const
        {
            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
            {
                const TextLinePrimitive2D& rCompare = (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
        ImplPrimitive2DIDBlock(TextLinePrimitive2D, PRIMITIVE2D_ID_TEXTLINEPRIMITIVE2D)

    } // end of namespace primitive2d
} // end of namespace drawinglayer

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