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/* -*- 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 "ChartDropTargetHelper.hxx"
#include <DataSourceHelper.hxx>
#include <com/sun/star/chart2/XChartDocument.hpp>
#include <com/sun/star/chart2/data/XDataProvider.hpp>
#include <com/sun/star/container/XChild.hpp>
#include <sot/formats.hxx>
#include <vector>
using namespace ::com::sun::star;
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::Sequence;
namespace
{
std::vector< OUString > lcl_getStringsFromByteSequence(
const Sequence< sal_Int8 > & aByteSequence )
{
std::vector< OUString > aResult;
const sal_Int32 nLength = aByteSequence.getLength();
const char * pBytes( reinterpret_cast< const char* >( aByteSequence.getConstArray()));
sal_Int32 nStartPos = 0;
for( sal_Int32 nPos=0; nPos<nLength; ++nPos )
{
if( pBytes[nPos] == '\0' )
{
aResult.emplace_back( pBytes + nStartPos, (nPos - nStartPos), RTL_TEXTENCODING_ASCII_US );
nStartPos = nPos + 1;
}
}
return aResult;
}
} // anonymous namespace
namespace chart
{
ChartDropTargetHelper::ChartDropTargetHelper(
const Reference< datatransfer::dnd::XDropTarget >& rxDropTarget,
const Reference< chart2::XChartDocument > & xChartDocument ) :
DropTargetHelper( rxDropTarget ),
m_xChartDocument( xChartDocument )
{}
ChartDropTargetHelper::~ChartDropTargetHelper()
{}
bool ChartDropTargetHelper::satisfiesPrerequisites() const
{
return ( m_xChartDocument.is() &&
! m_xChartDocument->hasInternalDataProvider());
}
sal_Int8 ChartDropTargetHelper::AcceptDrop( const AcceptDropEvent& rEvt )
{
sal_Int8 nResult = DND_ACTION_NONE;
if( ( rEvt.mnAction == DND_ACTION_COPY ||
rEvt.mnAction == DND_ACTION_MOVE ) &&
satisfiesPrerequisites() &&
IsDropFormatSupported( SotClipboardFormatId::LINK ) )
{
// @todo: check if the data is suitable. Is this possible without XTransferable?
nResult = rEvt.mnAction;
}
return nResult;
}
sal_Int8 ChartDropTargetHelper::ExecuteDrop( const ExecuteDropEvent& rEvt )
{
sal_Int8 nResult = DND_ACTION_NONE;
if( ( rEvt.mnAction == DND_ACTION_COPY ||
rEvt.mnAction == DND_ACTION_MOVE ) &&
rEvt.maDropEvent.Transferable.is() &&
satisfiesPrerequisites())
{
TransferableDataHelper aDataHelper( rEvt.maDropEvent.Transferable );
if( aDataHelper.HasFormat( SotClipboardFormatId::LINK ))
{
Sequence<sal_Int8> aBytes = aDataHelper.GetSequence(SotClipboardFormatId::LINK, OUString());
if (aBytes.hasElements())
{
std::vector< OUString > aStrings( lcl_getStringsFromByteSequence( aBytes ));
if( aStrings.size() >= 3 && aStrings[0] == "soffice" )
{
OUString aRangeString( aStrings[2] );
Reference< container::XChild > xChild( m_xChartDocument, uno::UNO_QUERY );
if( xChild.is())
{
Reference< frame::XModel > xParentModel( xChild->getParent(), uno::UNO_QUERY );
if( xParentModel.is() &&
m_xChartDocument.is())
{
// @todo: get the title somehow and compare it to
// aDocName if successful (the document is the
// parent)
Reference< chart2::XDiagram > xDiagram( m_xChartDocument->getFirstDiagram() );
Reference< chart2::data::XDataProvider > xDataProvider( m_xChartDocument->getDataProvider());
if( xDataProvider.is() && xDiagram.is() &&
DataSourceHelper::allArgumentsForRectRangeDetected( m_xChartDocument ))
{
Reference< chart2::data::XDataSource > xDataSource(
DataSourceHelper::pressUsedDataIntoRectangularFormat( m_xChartDocument ));
Sequence< beans::PropertyValue > aArguments(
xDataProvider->detectArguments( xDataSource ));
OUString aOldRange;
beans::PropertyValue * pCellRange = nullptr;
for( sal_Int32 i=0; i<aArguments.getLength(); ++i )
{
if ( aArguments[i].Name == "CellRangeRepresentation" )
{
pCellRange = (aArguments.getArray() + i);
aArguments[i].Value >>= aOldRange;
break;
}
}
if( pCellRange )
{
// copy means add ranges, move means replace
if( rEvt.mnAction == DND_ACTION_COPY )
{
// @todo: using implicit knowledge that ranges can be
// merged with ";". This should be done more general
pCellRange->Value <<= aOldRange + ";" + aRangeString;
}
// move means replace range
else
{
pCellRange->Value <<= aRangeString;
}
xDataSource.set( xDataProvider->createDataSource( aArguments ));
xDiagram->setDiagramData( xDataSource, aArguments );
// always return copy state to avoid deletion of the dragged range
nResult = DND_ACTION_COPY;
}
}
}
}
}
}
}
}
return nResult;
}
} // namespace chart
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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