ColumnLineDataInterpreter.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#include "ColumnLineDataInterpreter.hxx"
#include <DataSeries.hxx>
#include <osl/diagnose.h>
 
#include <algorithm>
 
using namespace ::com::sun::star;
using namespace ::com::sun::star::chart2;
 
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::Sequence;
 
namespace chart
{
 
// explicit
ColumnLineDataInterpreter::ColumnLineDataInterpreter(
    sal_Int32 nNumberOfLines ) :
        m_nNumberOfLines( nNumberOfLines )
{}
 
ColumnLineDataInterpreter::~ColumnLineDataInterpreter()
{}
 
// ____ DataInterpreter ____
InterpretedData ColumnLineDataInterpreter::interpretDataSource(
    const Reference< data::XDataSource >& xSource,
    const Sequence< beans::PropertyValue >& aArguments,
    const std::vector< rtl::Reference< DataSeries > >& aSeriesToReUse )
{
    InterpretedData aResult(  DataInterpreter::interpretDataSource( xSource, aArguments, aSeriesToReUse ));
 
    // the base class should return one group
    OSL_ASSERT( aResult.Series.size() == 1 );
    if( aResult.Series.size() == 1 )
    {
        sal_Int32 nNumberOfSeries = aResult.Series[0].size();
 
        // if we have more than one series put the last nNumOfLines ones into a new group
        if( nNumberOfSeries > 1 && m_nNumberOfLines > 0 )
        {
            sal_Int32 nNumOfLines = std::min( m_nNumberOfLines, nNumberOfSeries - 1 );
            aResult.Series.resize(2);
 
            std::vector< rtl::Reference< DataSeries > > & rColumnDataSeries = aResult.Series[0];
            std::vector< rtl::Reference< DataSeries > > & rLineDataSeries   = aResult.Series[1];
            rLineDataSeries.resize( nNumOfLines );
            std::copy( std::cbegin(rColumnDataSeries) + nNumberOfSeries - nNumOfLines,
                         std::cbegin(rColumnDataSeries) + nNumberOfSeries,
                         rLineDataSeries.begin() );
            rColumnDataSeries.resize( nNumberOfSeries - nNumOfLines );
        }
    }
 
    return aResult;
}
 
} // namespace chart
 
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