office-gobmx/chart2/source/inc/ContainerHelper.hxx
2011-02-08 19:31:40 +01:00

185 lines
6.2 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef CHART2_CONTAINERHELPER_HXX
#define CHART2_CONTAINERHELPER_HXX
#include <vector>
#include <set>
#include <map>
#include <algorithm>
#include <functional>
#include <o3tl/compat_functional.hxx>
namespace chart
{
namespace ContainerHelper
{
/** converts a standard container into a sequence of the same type
input: standard container
output: css::uno::Sequence< container::value_type >
example:
::std::vector< sal_Int32 > aVector;
Sequence< sal_Int32 > aSequence( ContainerHelper::ContainerToSequence( aVector ));
*/
template< class Container >
::com::sun::star::uno::Sequence< typename Container::value_type >
ContainerToSequence( const Container & rCont )
{
::com::sun::star::uno::Sequence< typename Container::value_type > aResult( rCont.size());
::std::copy( rCont.begin(), rCont.end(), aResult.getArray());
return aResult;
}
/** converts a UNO sequence into a standard "Sequence" container. For
convenience see the methods SequenceToVector, etc. below.
input: uno::Sequence
output: a standard container of the same value type implementing the Concept
of a Sequence (vector, deque, list, slist)
example:
Sequence< sal_Int32 > aSequence;
::std::vector< sal_Int32 > aVector(
ContainerToSequence::SequenceToSTLSequenceContainer< ::std::vector< sal_Int32 > >( aSequence );
*/
template< class Container >
Container
SequenceToSTLSequenceContainer( const ::com::sun::star::uno::Sequence< typename Container::value_type > & rSeq )
{
Container aResult( rSeq.getLength());
::std::copy( rSeq.getConstArray(), rSeq.getConstArray() + rSeq.getLength(),
aResult.begin() );
return aResult;
}
/** converts a UNO sequence into a standard container. For convenience see the
methods SequenceToVector, etc. below. (In contrast to
SequenceToSTLSequenceContainer this works for all standard containers)
input: uno::Sequence
output: a standard container that has an insert( iterator, key ) method (all
standard containers)
note: for containers implementing the Concept of a Sequence (vector, deque,
list, slist) use SequenceToSTLSequenceContainer for better speed
example:
Sequence< sal_Int32 > aSequence;
::std::set< sal_Int32 > aVector(
ContainerToSequence::SequenceToSTLContainer< ::std::set< sal_Int32 > >( aSequence );
*/
template< class Container >
Container
SequenceToSTLContainer( const ::com::sun::star::uno::Sequence< typename Container::value_type > & rSeq )
{
Container aResult;
::std::copy( rSeq.getConstArray(), rSeq.getConstArray() + rSeq.getLength(),
::std::inserter< Container >( aResult, aResult.begin()));
return aResult;
}
// concrete container methods for convenience
/** converts a UNO sequence into a standard vector of same value type
example:
Sequence< sal_Int32 > aSequence;
::std::vector< sal_Int32 > aVector( ContainerHelper::SequenceToVector( aSequence ));
*/
template< typename T >
::std::vector< T >
SequenceToVector( const ::com::sun::star::uno::Sequence< T > & rSeq )
{
return SequenceToSTLSequenceContainer< ::std::vector< T > >( rSeq );
}
/** converts a UNO sequence into a standard set of same value type
example:
Sequence< sal_Int32 > aSequence;
::std::set< sal_Int32 > aVector( ContainerHelper::SequenceToSet( aSequence ));
*/
template< typename T >
::std::set< T >
SequenceToSet( const ::com::sun::star::uno::Sequence< T > & rSeq )
{
return SequenceToSTLContainer< ::std::set< T > >( rSeq );
}
// ----------------------------------------
/** converts the keys of a Pair Associative Container into a UNO sequence
example:
::std::multimap< sal_Int32, ::rtl::OUString > aMyMultiMap;
uno::Sequence< sal_Int32 > aMyKeys( ContainerHelper::MapKeysToSequence( aMyMultiMap ));
// note: aMyKeys may contain duplicate keys here
*/
template< class Map >
::com::sun::star::uno::Sequence< typename Map::key_type > MapKeysToSequence(
const Map & rCont )
{
::com::sun::star::uno::Sequence< typename Map::key_type > aResult( rCont.size());
::std::transform( rCont.begin(), rCont.end(), aResult.getArray(),
::o3tl::select1st< typename Map::value_type >());
return aResult;
}
/** converts the values of a Pair Associative Container into a UNO sequence
example:
::std::map< sal_Int32, ::rtl::OUString > aMyMultiMap;
uno::Sequence< ::rtl::OUString > aMyValues( ContainerHelper::MapValuesToSequence( aMyMultiMap ));
*/
template< class Map >
::com::sun::star::uno::Sequence< typename Map::mapped_type > MapValuesToSequence(
const Map & rCont )
{
::com::sun::star::uno::Sequence< typename Map::mapped_type > aResult( rCont.size());
::std::transform( rCont.begin(), rCont.end(), aResult.getArray(),
::o3tl::select2nd< typename Map::value_type >());
return aResult;
}
} // namespace ContainerHelper
} // namespace chart
// CHART2_CONTAINERHELPER_HXX
#endif
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