/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

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 * 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 <sal/config.h>

#include <memory>

#include "ChartTransferable.hxx"

#include <sot/exchange.hxx>

#include <sot/storage.hxx>

#include <unotools/streamwrap.hxx>

#include <vcl/graph.hxx>

#include <svl/itempool.hxx>

#include <editeng/eeitem.hxx>

#include <editeng/fhgtitem.hxx>

#include <svx/svditer.hxx>

#include <svx/svdmodel.hxx>

#include <svx/unomodel.hxx>

#include <svx/svdview.hxx>

#include <osl/diagnose.h>

constexpr sal_uInt32 CHARTTRANSFER_OBJECTTYPE_DRAWMODEL = 1;

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

using ::com::sun::star::uno::Reference;

namespace chart

{

ChartTransferable::ChartTransferable(

    SdrModel& rSdrModel,

    SdrObject* pSelectedObj,

    bool bDrawing)

    : m_bDrawing(bDrawing)

{

    SdrView aExchgView( rSdrModel );

    SdrPageView* pPv = aExchgView.ShowSdrPage( rSdrModel.GetPage( 0 ));

    if( pSelectedObj )

        aExchgView.MarkObj( pSelectedObj, pPv );

    else

        aExchgView.MarkAllObj( pPv );

    Graphic aGraphic( aExchgView.GetMarkedObjMetaFile(true));

    m_xMetaFileGraphic.set( aGraphic.GetXGraphic());

    if ( m_bDrawing )

    {

        m_xMarkedObjModel = aExchgView.CreateMarkedObjModel();

    }

}

ChartTransferable::~ChartTransferable()

{}

void ChartTransferable::AddSupportedFormats()

{

    if ( m_bDrawing )

    {

        AddFormat( SotClipboardFormatId::DRAWING );

    }

    AddFormat( SotClipboardFormatId::GDIMETAFILE );

    AddFormat( SotClipboardFormatId::PNG );

    AddFormat( SotClipboardFormatId::BITMAP );

}

bool ChartTransferable::GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& /*rDestDoc*/ )

{

    SotClipboardFormatId nFormat = SotExchange::GetFormat( rFlavor );

    bool        bResult = false;

    if( HasFormat( nFormat ))

    {

        if ( nFormat == SotClipboardFormatId::DRAWING )

        {

            bResult = SetObject(m_xMarkedObjModel.get(), CHARTTRANSFER_OBJECTTYPE_DRAWMODEL, rFlavor);

        }

        else if ( nFormat == SotClipboardFormatId::GDIMETAFILE )

        {

            Graphic aGraphic( m_xMetaFileGraphic );

            bResult = SetGDIMetaFile( aGraphic.GetGDIMetaFile() );

        }

        else if( nFormat == SotClipboardFormatId::BITMAP )

        {

            Graphic aGraphic( m_xMetaFileGraphic );

            bResult = SetBitmapEx( aGraphic.GetBitmapEx(), rFlavor );

        }

    }

    return bResult;

}

bool ChartTransferable::WriteObject( SvStream& rOStm, void* pUserObject, sal_uInt32 nUserObjectId,

    const datatransfer::DataFlavor& /* rFlavor */ )

{

    // called from SetObject, put data into stream

    bool bRet = false;

    switch ( nUserObjectId )

    {

        case CHARTTRANSFER_OBJECTTYPE_DRAWMODEL:

            {

                SdrModel* pMarkedObjModel = static_cast< SdrModel* >( pUserObject );

                if ( pMarkedObjModel )

                {

                    rOStm.SetBufferSize( 0xff00 );

                    // for the changed pool defaults from drawing layer pool set those

                    // attributes as hard attributes to preserve them for saving

                    const SfxItemPool& rItemPool = pMarkedObjModel->GetItemPool();

                    const SvxFontHeightItem& rDefaultFontHeight = rItemPool.GetUserOrPoolDefaultItem( EE_CHAR_FONTHEIGHT );

                    sal_uInt16 nCount = pMarkedObjModel->GetPageCount();

                    for ( sal_uInt16 i = 0; i < nCount; ++i )

                    {

                        const SdrPage* pPage = pMarkedObjModel->GetPage( i );

                        SdrObjListIter aIter( pPage, SdrIterMode::DeepNoGroups );

                        while ( aIter.IsMore() )

                        {

                            SdrObject* pObj = aIter.Next();

                            const SvxFontHeightItem& rItem = pObj->GetMergedItem( EE_CHAR_FONTHEIGHT );

                            if ( rItem.GetHeight() == rDefaultFontHeight.GetHeight() )

                            {

                                pObj->SetMergedItem( rDefaultFontHeight );

                            }

                        }

                    }

                    Reference< io::XOutputStream > xDocOut( new utl::OOutputStreamWrapper( rOStm ) );

                    SvxDrawingLayerExport( pMarkedObjModel, xDocOut );

                    bRet = ( rOStm.GetError() == ERRCODE_NONE );

                }

            }

            break;

        default:

            {

                OSL_FAIL( "ChartTransferable::WriteObject: unknown object id" );

            }

            break;

    }

    return bRet;

}

} //  namespace chart

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