/* -*- 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 <basegfx/range/b2drange.hxx>

#include <basegfx/range/b2drectangle.hxx>

#include <basegfx/polygon/b2dpolypolygontools.hxx>

#include <sal/log.hxx>

#include "emfpbrush.hxx"

#include "emfppath.hxx"

namespace emfplushelper

{

    EMFPBrush::EMFPBrush()

        : type(0)

        , additionalFlags(0)

        , wrapMode(0)

        , firstPointX(0.0)

        , firstPointY(0.0)

        , aWidth(0.0)

        , aHeight(0.0)

        , hasTransformation(false)

        , blendPoints(0)

        , blendFactors(nullptr)

        , colorblendPoints(0)

        , surroundColorsNumber(0)

        , hatchStyle(HatchStyleHorizontal)

    {

    }

    EMFPBrush::~EMFPBrush()

    {

    }

    static OUString BrushTypeToString(sal_uInt32 type)

    {

        switch (type)

        {

            case BrushTypeSolidColor: return u"BrushTypeSolidColor"_ustr;

            case BrushTypeHatchFill: return u"BrushTypeHatchFill"_ustr;

            case BrushTypeTextureFill: return u"BrushTypeTextureFill"_ustr;

            case BrushTypePathGradient: return u"BrushTypePathGradient"_ustr;

            case BrushTypeLinearGradient: return u"BrushTypeLinearGradient"_ustr;

        }

        return u""_ustr;

    }

    void EMFPBrush::Read(SvStream& s, EmfPlusHelperData const & rR)

    {

        sal_uInt32 header;

        s.ReadUInt32(header).ReadUInt32(type);

        SAL_INFO("drawinglayer.emf", "EMF+\t\t\tHeader: 0x" << std::hex << header);

        SAL_INFO("drawinglayer.emf", "EMF+\t\t\tType: " << BrushTypeToString(type) << "(0x" << type << ")" << std::dec);

        switch (type)

        {

            case BrushTypeSolidColor:

            {

                sal_uInt32 color;

                s.ReadUInt32(color);

                solidColor = ::Color(ColorAlpha, (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tSolid color: 0x" << std::hex << color << std::dec);

                break;

            }

            case BrushTypeHatchFill:

            {

                sal_uInt32 style;

                sal_uInt32 foregroundColor;

                sal_uInt32 backgroundColor;

                s.ReadUInt32(style);

                s.ReadUInt32(foregroundColor);

                s.ReadUInt32(backgroundColor);

                hatchStyle = static_cast<EmfPlusHatchStyle>(style);

                solidColor = ::Color(ColorAlpha, (foregroundColor >> 24), (foregroundColor >> 16) & 0xff, (foregroundColor >> 8) & 0xff, foregroundColor & 0xff);

                secondColor = ::Color(ColorAlpha, (backgroundColor >> 24), (backgroundColor >> 16) & 0xff, (backgroundColor >> 8) & 0xff, backgroundColor & 0xff);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tHatch style: 0x" << std::hex << style);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tForeground color: 0x" << solidColor.AsRGBHexString());

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tBackground color: 0x" << secondColor.AsRGBHexString());

                break;

            }

            case BrushTypeTextureFill:

            {

                SAL_WARN("drawinglayer.emf", "EMF+\tTODO: implement BrushTypeTextureFill brush");

                break;

            }

            case BrushTypePathGradient:

            {

                s.ReadUInt32(additionalFlags).ReadInt32(wrapMode);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tAdditional flags: 0x" << std::hex << additionalFlags << std::dec);

                sal_uInt32 color;

                s.ReadUInt32(color);

                solidColor = ::Color(ColorAlpha, (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tCenter color: 0x" << std::hex << color << std::dec);

                s.ReadFloat(firstPointX).ReadFloat(firstPointY);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tCenter point: " << firstPointX << "," << firstPointY);

                s.ReadUInt32(surroundColorsNumber);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\t number of surround colors: " << surroundColorsNumber);

                surroundColors.reset( new ::Color[surroundColorsNumber] );

                for (sal_uInt32 i = 0; i < surroundColorsNumber; i++)

                {

                    s.ReadUInt32(color);

                    surroundColors[i] = ::Color(ColorAlpha, (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);

                    if (i == 0)

                        secondColor = surroundColors[0];

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tSurround color[" << i << "]: 0x" << std::hex << color << std::dec);

                }

                if (additionalFlags & 0x01) // BrushDataPath

                {

                    sal_Int32 pathLength;

                    s.ReadInt32(pathLength);

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tPath length: " << pathLength);

                    sal_uInt64 const pos = s.Tell();

                    sal_uInt32 pathHeader;

                    sal_Int32 pathPoints, pathFlags;

                    s.ReadUInt32(pathHeader).ReadInt32(pathPoints).ReadInt32(pathFlags);

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tPath (brush path gradient)");

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\t\tHeader: 0x" << std::hex << pathHeader);

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\t\tPoints: " << std::dec << pathPoints);

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\t\tAdditional flags: 0x" << std::hex << pathFlags << std::dec);

                    path.reset( new EMFPPath(pathPoints) );

                    path->Read(s, pathFlags);

                    s.Seek(pos + pathLength);

                    const ::basegfx::B2DRectangle aBounds(path->GetPolygon(rR, false).getB2DRange());

                    aWidth = aBounds.getWidth();

                    aHeight = aBounds.getHeight();

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tPolygon bounding box: " << aBounds.getMinX() << "," << aBounds.getMinY() << " "

                                                                             << aBounds.getWidth() << "x" << aBounds.getHeight());

                }

                else

                {

                    sal_Int32 boundaryPointCount;

                    s.ReadInt32(boundaryPointCount);

                    sal_uInt64 const pos = s.Tell();

                    SAL_INFO("drawinglayer.emf", "EMF+\t use boundary, points: " << boundaryPointCount);

                    path.reset( new EMFPPath(boundaryPointCount) );

                    path->Read(s, 0x0);

                    s.Seek(pos + 8 * boundaryPointCount);

                    const ::basegfx::B2DRectangle aBounds(path->GetPolygon(rR, false).getB2DRange());

                    aWidth = aBounds.getWidth();

                    aHeight = aBounds.getHeight();

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tPolygon bounding box: " << aBounds.getMinX() << "," << aBounds.getMinY() << " "

                                                                             << aBounds.getWidth() << "x" << aBounds.getHeight());

                }

                if (additionalFlags & 0x02) // BrushDataTransform

                {

                    EmfPlusHelperData::readXForm(s, brush_transformation);

                    hasTransformation = true;

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tUse brush transformation: " << brush_transformation);

                }

                // BrushDataPresetColors and BrushDataBlendFactorsH

                if ((additionalFlags & 0x04) && (additionalFlags & 0x08))

                {

                    SAL_WARN("drawinglayer.emf", "EMF+\t Brush must not contain both BrushDataPresetColors and BrushDataBlendFactorsH");

                    return;

                }

                if (additionalFlags & 0x08) // BrushDataBlendFactorsH

                {

                    s.ReadUInt32(blendPoints);

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tuse blend, points: " << blendPoints);

                    blendPositions.reset( new float[2 * blendPoints] );

                    blendFactors = blendPositions.get() + blendPoints;

                    for (sal_uInt32 i = 0; i < blendPoints; i++)

                    {

                        s.ReadFloat(blendPositions[i]);

                        SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tposition[" << i << "]: " << blendPositions[i]);

                    }

                    for (sal_uInt32 i = 0; i < blendPoints; i++)

                    {

                        s.ReadFloat(blendFactors[i]);

                        SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tFactor[" << i << "]: " << blendFactors[i]);

                    }

                }

                if (additionalFlags & 0x04) // BrushDataPresetColors

                {

                    s.ReadUInt32(colorblendPoints);

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tUse color blend, points: " << colorblendPoints);

                    colorblendPositions.reset( new float[colorblendPoints] );

                    colorblendColors.reset( new ::Color[colorblendPoints] );

                    for (sal_uInt32 i = 0; i < colorblendPoints; i++)

                    {

                        s.ReadFloat(colorblendPositions[i]);

                        SAL_INFO("drawinglayer.emf", "EMF+\tposition[" << i << "]: " << colorblendPositions[i]);

                    }

                    for (sal_uInt32 i = 0; i < colorblendPoints; i++)

                    {

                        s.ReadUInt32(color);

                        colorblendColors[i] = ::Color(ColorAlpha, (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);

                        SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tColor[" << i << "]: 0x" << std::hex << color << std::dec);

                    }

                }

                break;

            }

            case BrushTypeLinearGradient:

            {

                s.ReadUInt32(additionalFlags).ReadInt32(wrapMode);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tLinear gradient, additional flags: 0x" << std::hex << additionalFlags << std::dec << ", wrapMode: " << wrapMode);

                s.ReadFloat(firstPointX).ReadFloat(firstPointY).ReadFloat(aWidth).ReadFloat(aHeight);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tFirst gradient point: " << firstPointX << ":" << firstPointY

                                         << ", size " << aWidth << "x" << aHeight);

                sal_uInt32 color;

                s.ReadUInt32(color);

                solidColor = ::Color(ColorAlpha, (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tfirst color: 0x" << std::hex << color << std::dec);

                s.ReadUInt32(color);

                secondColor = ::Color(ColorAlpha, (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);

                SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tsecond color: 0x" << std::hex << color << std::dec);

                // repeated colors, unknown meaning, see http://www.aces.uiuc.edu/~jhtodd/Metafile/MetafileRecords/ObjectBrush.html

                s.ReadUInt32(color);

                s.ReadUInt32(color);

                if (additionalFlags & 0x02) //BrushDataTransform

                {

                    EmfPlusHelperData::readXForm(s, brush_transformation);

                    hasTransformation = true;

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tUse brush transformation: " << brush_transformation);

                }

                // BrushDataPresetColors and BrushDataBlendFactorsH

                if ((additionalFlags & 0x04) && (additionalFlags & 0x08))

                {

                    SAL_WARN("drawinglayer.emf", "EMF+\t Brush must not contain both BrushDataPresetColors and BrushDataBlendFactorsH");

                    return;

                }

                if (additionalFlags & 0x08) // BrushDataBlendFactorsH

                {

                    s.ReadUInt32(blendPoints);

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tUse blend, points: " << blendPoints);

                    blendPositions.reset( new float[2 * blendPoints] );

                    blendFactors = blendPositions.get() + blendPoints;

                    for (sal_uInt32 i = 0; i < blendPoints; i++)

                    {

                        s.ReadFloat(blendPositions[i]);

                        SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tPosition[" << i << "]: " << blendPositions[i]);

                    }

                    for (sal_uInt32 i = 0; i < blendPoints; i++)

                    {

                        s.ReadFloat(blendFactors[i]);

                        SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tFactor[" << i << "]: " << blendFactors[i]);

                    }

                }

                if (additionalFlags & 0x04)

                {

                    s.ReadUInt32(colorblendPoints);

                    SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tUse color blend, points: " << colorblendPoints);

                    colorblendPositions.reset( new float[colorblendPoints] );

                    colorblendColors.reset( new ::Color[colorblendPoints] );

                    for (sal_uInt32 i = 0; i < colorblendPoints; i++)

                    {

                        s.ReadFloat(colorblendPositions[i]);

                        SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tPosition[" << i << "]: " << colorblendPositions[i]);

                    }

                    for (sal_uInt32 i = 0; i < colorblendPoints; i++)

                    {

                        s.ReadUInt32(color);

                        colorblendColors[i] = ::Color(ColorAlpha, (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);

                        SAL_INFO("drawinglayer.emf", "EMF+\t\t\t\tColor[" << i << "]: 0x" << std::hex << color << std::dec);

                    }

                }

                break;

            }

            default:

            {

                SAL_WARN("drawinglayer.emf", "EMF+\tunhandled brush type: " << std::hex << type << std::dec);

            }

        }

    }

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */