/* -*- 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 <graphic/UnoGraphic.hxx>

#include <tools/stream.hxx>

#include <vcl/svapp.hxx>

#include <com/sun/star/graphic/GraphicType.hpp>

#include <com/sun/star/graphic/XGraphicTransformer.hpp>

#include <vcl/alpha.hxx>

#include <vcl/dibtools.hxx>

#include <vcl/graph.hxx>

#include <vcl/BitmapColor.hxx>

#include <vcl/BitmapTools.hxx>

#include <comphelper/servicehelper.hxx>

#include <cppuhelper/supportsservice.hxx>

#include <cppuhelper/queryinterface.hxx>

#include <cppuhelper/typeprovider.hxx>

#include <bitmap/BitmapDuoToneFilter.hxx>

using namespace com::sun::star;

namespace unographic {

Graphic::Graphic(const ::Graphic& rGraphic)

    : maGraphic(rGraphic)

{

    unographic::GraphicDescriptor::init(maGraphic);

}

Graphic::~Graphic() noexcept

{

}

uno::Any SAL_CALL Graphic::queryInterface( const uno::Type & rType )

{

    uno::Any aAny;

    if( rType == cppu::UnoType<graphic::XGraphic>::get())

        aAny <<= uno::Reference< graphic::XGraphic >( this );

    else if( rType == cppu::UnoType<awt::XBitmap>::get())

        aAny <<= uno::Reference< awt::XBitmap >( this );

    else if( rType == cppu::UnoType<graphic::XGraphicTransformer>::get())

        aAny <<= uno::Reference< graphic::XGraphicTransformer >(this);

    else

        aAny = ::unographic::GraphicDescriptor::queryInterface( rType );

    return aAny;

}

void SAL_CALL Graphic::acquire()

    noexcept

{

    unographic::GraphicDescriptor::acquire();

}

void SAL_CALL Graphic::release() noexcept

{

    unographic::GraphicDescriptor::release();

}

OUString SAL_CALL Graphic::getImplementationName()

{

    return u"com.sun.star.comp.graphic.Graphic"_ustr;

}

sal_Bool SAL_CALL Graphic::supportsService( const OUString& rServiceName )

{

    return cppu::supportsService( this, rServiceName );

}

uno::Sequence< OUString > SAL_CALL Graphic::getSupportedServiceNames()

{

    uno::Sequence< OUString >    aRet( ::unographic::GraphicDescriptor::getSupportedServiceNames() );

    const uno::Sequence< OUString >    aNew { u"com.sun.star.graphic.Graphic"_ustr };

    sal_Int32                           nOldCount = aRet.getLength();

    aRet.realloc( nOldCount + aNew.getLength() );

    std::copy(aNew.begin(), aNew.end(), std::next(aRet.getArray(), nOldCount));

    return aRet;

}

uno::Sequence< uno::Type > SAL_CALL Graphic::getTypes()

{

    return cppu::OTypeCollection(

            cppu::UnoType<graphic::XGraphic>::get(),

            cppu::UnoType<awt::XBitmap>::get(),

            ::unographic::GraphicDescriptor::getTypes()

        ).getTypes();

}

sal_Int8 SAL_CALL Graphic::getType()

{

    sal_Int8 cRet = graphic::GraphicType::EMPTY;

    if (!maGraphic.IsNone())

    {

        cRet = (maGraphic.GetType() == ::GraphicType::Bitmap) ? graphic::GraphicType::PIXEL

                                              : graphic::GraphicType::VECTOR;

    }

    return cRet;

}

// XBitmap

awt::Size SAL_CALL Graphic::getSize()

{

    SolarMutexGuard aGuard;

    Size aVclSize;

    if (!maGraphic.IsNone())

    {

        aVclSize = maGraphic.GetSizePixel();

    }

    return awt::Size(aVclSize.Width(), aVclSize.Height());

}

uno::Sequence<sal_Int8> SAL_CALL Graphic::getDIB()

{

    SolarMutexGuard aGuard;

    if (!maGraphic.IsNone())

    {

        SvMemoryStream aMemoryStream;

        WriteDIB(maGraphic.GetBitmap().CreateColorBitmap(), aMemoryStream, false, true);

        return css::uno::Sequence<sal_Int8>(static_cast<sal_Int8 const *>(aMemoryStream.GetData()), aMemoryStream.Tell());

    }

    else

    {

        return uno::Sequence<sal_Int8>();

    }

}

uno::Sequence<sal_Int8> SAL_CALL Graphic::getMaskDIB()

{

    SolarMutexGuard aGuard;

    if (!maGraphic.IsNone())

    {

        return vcl::bitmap::GetMaskDIB(maGraphic.GetBitmap());

    }

    else

    {

        return uno::Sequence<sal_Int8>();

    }

}

// XGraphicTransformer

uno::Reference< graphic::XGraphic > SAL_CALL Graphic::colorChange(

    const uno::Reference< graphic::XGraphic >& rxGraphic, sal_Int32 nColorFrom, sal_Int8 nTolerance, sal_Int32 nColorTo, sal_Int8 nAlphaTo )

{

    ::Graphic aGraphic(rxGraphic);

    ::Graphic aReturnGraphic;

    BitmapColor aBmpColorFrom(Color(ColorTransparency, static_cast<sal_uInt32>(nColorFrom)));

    BitmapColor aBmpColorTo(Color(ColorTransparency, static_cast<sal_uInt32>(nColorTo)));

    Color aColorFrom(aBmpColorFrom);

    Color aColorTo(aBmpColorTo);

    const sal_uInt8 cIndexFrom = aBmpColorFrom.GetIndex();

    //TODO This code convert GdiMetafile(vector graphic) to Bitmap, which cause to information lost

    if (aGraphic.GetType() == GraphicType::Bitmap ||

        aGraphic.GetType() == GraphicType::GdiMetafile)

    {

        Bitmap aBitmap(aGraphic.GetBitmap());

        if (aBitmap.HasAlpha())

        {

            aBitmap.ChangeColorAlpha( cIndexFrom, nAlphaTo );

            aBitmap.Replace(aColorFrom, aColorTo, nTolerance);

            aReturnGraphic = ::Graphic(aBitmap);

        }

        else

        {

            if ((nAlphaTo == 0) || (nAlphaTo == sal::static_int_cast< sal_Int8 >(0xff)))

            {

                Bitmap aBitmap2(aBitmap);

                AlphaMask aMask(aBitmap2.CreateAlphaMask(aColorFrom, nTolerance));

                aBitmap2.Replace(aColorFrom, aColorTo, nTolerance);

                aReturnGraphic = ::Graphic(Bitmap(aBitmap2, aMask));

            }

            else

            {

                aBitmap.Replace(aColorFrom, aColorTo, nTolerance);

                aReturnGraphic = ::Graphic(aBitmap);

            }

        }

    }

    aReturnGraphic.setOriginURL(aGraphic.getOriginURL());

    return aReturnGraphic.GetXGraphic();

}

uno::Reference< graphic::XGraphic > SAL_CALL Graphic::applyDuotone(

    const uno::Reference< graphic::XGraphic >& rxGraphic, sal_Int32 nColorOne, sal_Int32 nColorTwo )

{

    ::Graphic aGraphic(rxGraphic);

    Bitmap    aBitmap( aGraphic.GetBitmap() );

    BitmapFilter::Filter(aBitmap,

                    BitmapDuoToneFilter(

                        Color(ColorTransparency, nColorOne),

                        Color(ColorTransparency, nColorTwo)));

    ::Graphic aReturnGraphic(aBitmap);

    aReturnGraphic.setOriginURL(aGraphic.getOriginURL());

    return aReturnGraphic.GetXGraphic();

}

uno::Reference< graphic::XGraphic > SAL_CALL Graphic::applyBrightnessContrast(

    const uno::Reference< graphic::XGraphic >& rxGraphic, sal_Int32 nBrightness, sal_Int32 nContrast, sal_Bool mso )

{

    ::Graphic aGraphic(rxGraphic);

    ::Graphic aReturnGraphic;

    Bitmap aBitmap(aGraphic.GetBitmap());

    aBitmap.Adjust(nBrightness, nContrast, 0, 0, 0, 0, false, mso);

    aReturnGraphic = ::Graphic(aBitmap);

    aReturnGraphic.setOriginURL(aGraphic.getOriginURL());

    return aReturnGraphic.GetXGraphic();

}

}

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