/* -*- 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 <com/sun/star/awt/XBitmap.hpp>

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

#include <comphelper/propertyvalue.hxx>

#include <tools/debug.hxx>

#include <vcl/virdev.hxx>

#include <vcl/bitmapex.hxx>

#include <svl/style.hxx>

#include <editeng/memberids.h>

#include <svx/strings.hrc>

#include <svx/xtable.hxx>

#include <svx/xdef.hxx>

#include <svx/unomid.hxx>

#include <svx/unoapi.hxx>

#include <svx/svdmodel.hxx>

#include <svx/xbitmap.hxx>

#include <svx/xbtmpit.hxx>

#include <com/sun/star/beans/PropertyValue.hpp>

#include <vcl/BitmapTools.hxx>

#include <vcl/GraphicLoader.hxx>

#include <libxml/xmlwriter.h>

using namespace ::com::sun::star;

XOBitmap::XOBitmap( const BitmapEx& rBmp ) :

    xGraphicObject  (new GraphicObject(rBmp)),

    bGraphicDirty   ( false )

{

}

XOBitmap::~XOBitmap()

{

}

BitmapEx XOBitmap::GetBitmap() const

{

    return GetGraphicObject().GetGraphic().GetBitmapEx();

}

const GraphicObject& XOBitmap::GetGraphicObject() const

{

    if( bGraphicDirty )

        const_cast<XOBitmap*>(this)->Array2Bitmap();

    return *xGraphicObject;

}

void XOBitmap::Bitmap2Array()

{

    ScopedVclPtrInstance< VirtualDevice > pVDev;

    bool            bPixelColor = false;

    const BitmapEx  aBitmap( GetBitmap() );

    const sal_Int32 nLines = 8; // type dependent

    if( !pPixelArray )

        pPixelArray.reset( new sal_uInt16[ nLines * nLines ] );

    pVDev->SetOutputSizePixel( aBitmap.GetSizePixel() );

    pVDev->DrawBitmapEx( Point(), aBitmap );

    aPixelColor = aBckgrColor = pVDev->GetPixel( Point() );

    // create array and determine foreground and background color

    for (sal_Int32 i = 0; i < nLines; ++i)

    {

        for (sal_Int32 j = 0; j < nLines; ++j)

        {

            if ( pVDev->GetPixel( Point( j, i ) ) == aBckgrColor )

                pPixelArray[ j + i * nLines ] = 0;

            else

            {

                pPixelArray[ j + i * nLines ] = 1;

                if( !bPixelColor )

                {

                    aPixelColor = pVDev->GetPixel( Point( j, i ) );

                    bPixelColor = true;

                }

            }

        }

    }

}

/// convert array, fore- and background color into a bitmap

void XOBitmap::Array2Bitmap()

{

    if (!pPixelArray)

        return;

    ScopedVclPtrInstance< VirtualDevice > pVDev;

    const sal_Int32 nLines = 8; // type dependent

    pVDev->SetOutputSizePixel( Size( nLines, nLines ) );

    // create bitmap

    for (sal_Int32 i = 0; i < nLines; ++i)

    {

        for (sal_Int32 j = 0; j < nLines; ++j)

        {

            if( pPixelArray[ j + i * nLines ] == 0 )

                pVDev->DrawPixel( Point( j, i ), aBckgrColor );

            else

                pVDev->DrawPixel( Point( j, i ), aPixelColor );

        }

    }

    xGraphicObject.reset(new GraphicObject(pVDev->GetBitmapEx(Point(), Size(nLines, nLines))));

    bGraphicDirty = false;

}

SfxPoolItem* XFillBitmapItem::CreateDefault() { return new XFillBitmapItem; }

XFillBitmapItem::XFillBitmapItem(const OUString& rName, const GraphicObject& rGraphicObject)

:   NameOrIndex(XATTR_FILLBITMAP, rName),

    maGraphicObject(rGraphicObject)

{

}

XFillBitmapItem::XFillBitmapItem(const XFillBitmapItem& rItem)

:   NameOrIndex(rItem),

    maGraphicObject(rItem.maGraphicObject)

{

}

XFillBitmapItem::XFillBitmapItem(const GraphicObject& rGraphicObject)

    : NameOrIndex(XATTR_FILLBITMAP, -1)

    , maGraphicObject(rGraphicObject)

{

}

XFillBitmapItem* XFillBitmapItem::Clone(SfxItemPool* /*pPool*/) const

{

    return new XFillBitmapItem(*this);

}

bool XFillBitmapItem::operator==(const SfxPoolItem& rItem) const

{

    return (NameOrIndex::operator==(rItem)

        && maGraphicObject == static_cast<const XFillBitmapItem&>(rItem).maGraphicObject);

}

bool XFillBitmapItem::isPattern() const

{

    Color aBack, aFront;

    return vcl::bitmap::isHistorical8x8(GetGraphicObject().GetGraphic().GetBitmapEx(), aBack, aFront);

}

bool XFillBitmapItem::GetPresentation(

    SfxItemPresentation /*ePres*/,

    MapUnit /*eCoreUnit*/,

    MapUnit /*ePresUnit*/,

    OUString& rText,

    const IntlWrapper&) const

{

    rText += GetName();

    return true;

}

bool XFillBitmapItem::QueryValue(css::uno::Any& rVal, sal_uInt8 nMemberId) const

{

    nMemberId &= ~CONVERT_TWIPS;

    // needed for MID_NAME

    OUString aApiName;

    // needed for complete item (MID 0)

    OUString aInternalName;

    css::uno::Reference< css::awt::XBitmap > xBmp;

    if( nMemberId == MID_NAME )

    {

         aApiName = SvxUnogetApiNameForItem(Which(), GetName());

    }

    else if( nMemberId == 0  )

    {

        aInternalName = GetName();

    }

    if (nMemberId == MID_BITMAP ||

        nMemberId == 0)

    {

        xBmp.set(GetGraphicObject().GetGraphic().GetXGraphic(), uno::UNO_QUERY);

    }

    if( nMemberId == MID_NAME )

        rVal <<= aApiName;

    else if( nMemberId == MID_BITMAP )

        rVal <<= xBmp;

    else

    {

        // member-id 0 => complete item (e.g. for toolbars)

        DBG_ASSERT( nMemberId == 0, "invalid member-id" );

        uno::Sequence< beans::PropertyValue > aPropSeq{

            comphelper::makePropertyValue(u"Name"_ustr, aInternalName),

            comphelper::makePropertyValue(u"Bitmap"_ustr, xBmp)

        };

        rVal <<= aPropSeq;

    }

    return true;

}

bool XFillBitmapItem::PutValue( const css::uno::Any& rVal, sal_uInt8 nMemberId )

{

    nMemberId &= ~CONVERT_TWIPS;

    OUString aName;

    OUString aURL;

    css::uno::Reference< css::awt::XBitmap > xBmp;

    css::uno::Reference< css::graphic::XGraphic > xGraphic;

    bool bSetURL    = false;

    bool bSetName   = false;

    bool bSetBitmap = false;

    if( nMemberId == MID_NAME )

        bSetName = (rVal >>= aName);

    else if( nMemberId == MID_BITMAP )

    {

        if (rVal.has<OUString>())

        {

            bSetURL = true;

            aURL = rVal.get<OUString>();

        }

        else if (rVal.has<uno::Reference<awt::XBitmap>>())

        {

            bSetBitmap = true;

            xBmp = rVal.get<uno::Reference<awt::XBitmap>>();

        }

        else if (rVal.has<uno::Reference<graphic::XGraphic>>())

        {

            bSetBitmap = true;

            xGraphic = rVal.get<uno::Reference<graphic::XGraphic>>();

        }

    }

    else

    {

        DBG_ASSERT( nMemberId == 0, "invalid member-id" );

        uno::Sequence< beans::PropertyValue >   aPropSeq;

        if( rVal >>= aPropSeq )

        {

            for (const auto& rProp : aPropSeq)

            {

                if ( rProp.Name == "Name" )

                    bSetName = (rProp.Value >>= aName);

                else if ( rProp.Name == "Bitmap" )

                    bSetBitmap = (rProp.Value >>= xBmp);

                else if ( rProp.Name == "FillBitmapURL" )

                    bSetURL = (rProp.Value >>= aURL);

            }

        }

    }

    if( bSetName )

    {

        SetName( aName );

    }

    if (bSetURL && !aURL.isEmpty())

    {

        Graphic aGraphic = vcl::graphic::loadFromURL(aURL);

        if (!aGraphic.IsNone())

        {

            maGraphicObject.SetGraphic(aGraphic.GetXGraphic());

        }

    }

    else if( bSetBitmap )

    {

        if (xBmp.is())

        {

            xGraphic.set(xBmp, uno::UNO_QUERY);

        }

        if (xGraphic.is())

        {

            maGraphicObject.SetGraphic(xGraphic);

        }

    }

    return (bSetURL || bSetName || bSetBitmap);

}

bool XFillBitmapItem::CompareValueFunc( const NameOrIndex* p1, const NameOrIndex* p2 )

{

    const GraphicObject& aGraphicObjectA(static_cast<const XFillBitmapItem*>(p1)->GetGraphicObject());

    const GraphicObject& aGraphicObjectB(static_cast<const XFillBitmapItem*>(p2)->GetGraphicObject());

    return aGraphicObjectA == aGraphicObjectB;

}

std::unique_ptr<XFillBitmapItem> XFillBitmapItem::checkForUniqueItem( SdrModel& rModel ) const

{

    XPropertyListType aListType = XPropertyListType::Bitmap;

    if(isPattern())

        aListType = XPropertyListType::Pattern;

    const OUString aUniqueName(CheckNamedItem(

        XATTR_FILLBITMAP, &rModel.GetItemPool(),

        XFillBitmapItem::CompareValueFunc, RID_SVXSTR_BMP21,

        rModel.GetPropertyList(aListType)));

    // if the given name is not valid, replace it!

    if( aUniqueName != GetName() )

    {

        return std::make_unique<XFillBitmapItem>(aUniqueName, maGraphicObject);

    }

    return nullptr;

}

void XFillBitmapItem::dumpAsXml(xmlTextWriterPtr pWriter) const

{

    (void)xmlTextWriterStartElement(pWriter, BAD_CAST("XFillBitmapItem"));

    (void)xmlTextWriterWriteAttribute(pWriter, BAD_CAST("whichId"), BAD_CAST(OString::number(Which()).getStr()));

    NameOrIndex::dumpAsXml(pWriter);

    (void)xmlTextWriterEndElement(pWriter);

}

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