178 lines
7.1 KiB
C++
178 lines
7.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "ChartDropTargetHelper.hxx"
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#include <DataSource.hxx>
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#include <DataSourceHelper.hxx>
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#include <ChartModel.hxx>
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#include <Diagram.hxx>
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#include <com/sun/star/chart2/data/XDataProvider.hpp>
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#include <sot/formats.hxx>
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#include <utility>
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#include <vector>
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using namespace ::com::sun::star;
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using ::com::sun::star::uno::Reference;
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using ::com::sun::star::uno::Sequence;
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namespace
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{
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std::vector< OUString > lcl_getStringsFromByteSequence(
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const Sequence< sal_Int8 > & aByteSequence )
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{
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std::vector< OUString > aResult;
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const sal_Int32 nLength = aByteSequence.getLength();
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const char * pBytes( reinterpret_cast< const char* >( aByteSequence.getConstArray()));
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sal_Int32 nStartPos = 0;
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for( sal_Int32 nPos=0; nPos<nLength; ++nPos )
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{
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if( pBytes[nPos] == '\0' )
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{
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aResult.emplace_back( pBytes + nStartPos, (nPos - nStartPos), RTL_TEXTENCODING_ASCII_US );
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nStartPos = nPos + 1;
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}
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}
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return aResult;
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}
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} // anonymous namespace
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namespace chart
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{
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ChartDropTargetHelper::ChartDropTargetHelper(
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const Reference< datatransfer::dnd::XDropTarget >& rxDropTarget,
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rtl::Reference<::chart::ChartModel> xChartDocument ) :
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DropTargetHelper( rxDropTarget ),
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m_xChartDocument(std::move( xChartDocument ))
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{}
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ChartDropTargetHelper::~ChartDropTargetHelper()
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{}
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bool ChartDropTargetHelper::satisfiesPrerequisites() const
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{
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return ( m_xChartDocument.is() &&
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! m_xChartDocument->hasInternalDataProvider());
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}
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sal_Int8 ChartDropTargetHelper::AcceptDrop( const AcceptDropEvent& rEvt )
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{
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sal_Int8 nResult = DND_ACTION_NONE;
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if( ( rEvt.mnAction == DND_ACTION_COPY ||
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rEvt.mnAction == DND_ACTION_MOVE ) &&
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satisfiesPrerequisites() &&
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IsDropFormatSupported( SotClipboardFormatId::LINK ) )
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{
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// @todo: check if the data is suitable. Is this possible without XTransferable?
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nResult = rEvt.mnAction;
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}
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return nResult;
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}
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sal_Int8 ChartDropTargetHelper::ExecuteDrop( const ExecuteDropEvent& rEvt )
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{
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sal_Int8 nResult = DND_ACTION_NONE;
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if( ( rEvt.mnAction == DND_ACTION_COPY ||
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rEvt.mnAction == DND_ACTION_MOVE ) &&
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rEvt.maDropEvent.Transferable.is() &&
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satisfiesPrerequisites())
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{
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TransferableDataHelper aDataHelper( rEvt.maDropEvent.Transferable );
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if( aDataHelper.HasFormat( SotClipboardFormatId::LINK ))
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{
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Sequence<sal_Int8> aBytes = aDataHelper.GetSequence(SotClipboardFormatId::LINK, OUString());
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if (aBytes.hasElements())
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{
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std::vector< OUString > aStrings( lcl_getStringsFromByteSequence( aBytes ));
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if( aStrings.size() >= 3 && aStrings[0] == "soffice" )
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{
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const OUString& aRangeString( aStrings[2] );
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if( m_xChartDocument.is())
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{
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Reference< frame::XModel > xParentModel( m_xChartDocument->getParent(), uno::UNO_QUERY );
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if( xParentModel.is() &&
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m_xChartDocument.is())
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{
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// @todo: get the title somehow and compare it to
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// aDocName if successful (the document is the
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// parent)
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rtl::Reference< Diagram > xDiagram = m_xChartDocument->getFirstChartDiagram();
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Reference< chart2::data::XDataProvider > xDataProvider( m_xChartDocument->getDataProvider());
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if( xDataProvider.is() && xDiagram.is() &&
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DataSourceHelper::allArgumentsForRectRangeDetected( m_xChartDocument ))
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{
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rtl::Reference< DataSource > xDataSource1 =
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DataSourceHelper::pressUsedDataIntoRectangularFormat( m_xChartDocument );
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Sequence< beans::PropertyValue > aArguments(
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xDataProvider->detectArguments( xDataSource1 ));
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OUString aOldRange;
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beans::PropertyValue * pCellRange = nullptr;
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for( sal_Int32 i=0; i<aArguments.getLength(); ++i )
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{
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if ( aArguments[i].Name == "CellRangeRepresentation" )
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{
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pCellRange = (aArguments.getArray() + i);
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aArguments[i].Value >>= aOldRange;
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break;
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}
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}
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if( pCellRange )
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{
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// copy means add ranges, move means replace
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if( rEvt.mnAction == DND_ACTION_COPY )
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{
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// @todo: using implicit knowledge that ranges can be
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// merged with ";". This should be done more general
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pCellRange->Value <<= aOldRange + ";" + aRangeString;
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}
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// move means replace range
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else
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{
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pCellRange->Value <<= aRangeString;
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}
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Reference< chart2::data::XDataSource > xDataSource2 =
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xDataProvider->createDataSource( aArguments );
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xDiagram->setDiagramData( xDataSource2, aArguments );
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// always return copy state to avoid deletion of the dragged range
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nResult = DND_ACTION_COPY;
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}
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}
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}
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}
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}
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}
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}
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}
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return nResult;
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}
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} // namespace chart
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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