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#ifndef RPTUI_FUNCTIONHELPER_HXX
#define RPTUI_FUNCTIONHELPER_HXX

#include <formula/IFunctionDescription.hxx>
#include <com/sun/star/report/meta/XFunctionManager.hpp>
#include <com/sun/star/report/meta/XFunctionCategory.hpp>
#include <com/sun/star/report/meta/XFunctionDescription.hpp>
#include <vector>
#include <boost/shared_ptr.hpp>
#include <tools/string.hxx>
#include <comphelper/stl_types.hxx>


namespace rptui
{
//============================================================================
class FunctionCategory;
class FunctionDescription;
//============================================================================
class FunctionManager : public formula::IFunctionManager
{
    DECLARE_STL_USTRINGACCESS_MAP( ::boost::shared_ptr< FunctionDescription >,  TFunctionsMap);
    DECLARE_STL_USTRINGACCESS_MAP( ::boost::shared_ptr< FunctionCategory > ,    TCategoriesMap);
    ::com::sun::star::uno::Reference< ::com::sun::star::report::meta::XFunctionManager> m_xMgr;
    mutable TCategoriesMap  m_aCategories;
    mutable ::std::vector< TCategoriesMap::iterator > m_aCategoryIndex;
    mutable TFunctionsMap   m_aFunctions;
public:
            FunctionManager(const ::com::sun::star::uno::Reference< ::com::sun::star::report::meta::XFunctionManager>& _xMgr);
    virtual ~FunctionManager();
    virtual sal_uInt32                              getCount() const;
    virtual const formula::IFunctionCategory*       getCategory(sal_uInt32 nPos) const;
    virtual void                                    fillLastRecentlyUsedFunctions(::std::vector< const formula::IFunctionDescription*>& _rLastRUFunctions) const;
    virtual const formula::IFunctionDescription*    getFunctionByName(const ::rtl::OUString& _sFunctionName) const;
    virtual sal_Unicode                       getSingleToken(const EToken _eToken) const;

    ::boost::shared_ptr< FunctionDescription >      get(const ::com::sun::star::uno::Reference< ::com::sun::star::report::meta::XFunctionDescription>& _xFunctionDescription) const;
};
//============================================================================
class FunctionDescription : public formula::IFunctionDescription
{
    ::com::sun::star::uno::Sequence< ::com::sun::star::sheet::FunctionArgument > m_aParameter;
    ::com::sun::star::uno::Reference< ::com::sun::star::report::meta::XFunctionDescription> m_xFunctionDescription;
    const formula::IFunctionCategory* m_pFunctionCategory;
public:
    FunctionDescription(const formula::IFunctionCategory* _pFunctionCategory,const ::com::sun::star::uno::Reference< ::com::sun::star::report::meta::XFunctionDescription>& _xFunctionDescription);
    virtual ~FunctionDescription(){}

    virtual ::rtl::OUString getFunctionName() const ;
    virtual const formula::IFunctionCategory* getCategory() const ;
    virtual ::rtl::OUString getDescription() const ;
    virtual xub_StrLen getSuppressedArgumentCount() const ;
    virtual ::rtl::OUString getFormula(const ::std::vector< ::rtl::OUString >& _aArguments) const ;
    virtual void fillVisibleArgumentMapping(::std::vector<USHORT>& _rArguments) const ;
    virtual void initArgumentInfo()  const;
    virtual ::rtl::OUString getSignature() const ;
    virtual long getHelpId() const ;
    virtual sal_uInt32 getParameterCount() const ;
    virtual ::rtl::OUString getParameterName(sal_uInt32 _nPos) const ;
    virtual ::rtl::OUString getParameterDescription(sal_uInt32 _nPos) const ;
    virtual bool isParameterOptional(sal_uInt32 _nPos) const ;
};
//============================================================================
class FunctionCategory : public formula::IFunctionCategory
{
    mutable ::std::vector< ::boost::shared_ptr< FunctionDescription > > m_aFunctions;
    ::com::sun::star::uno::Reference< ::com::sun::star::report::meta::XFunctionCategory> m_xCategory;
    sal_uInt32 m_nFunctionCount;
    sal_uInt32 m_nNumber;
    const FunctionManager* m_pFunctionManager;
public:
    FunctionCategory(const FunctionManager* _pFMgr,sal_uInt32 _nPos,const ::com::sun::star::uno::Reference< ::com::sun::star::report::meta::XFunctionCategory>& _xCategory);
    virtual ~FunctionCategory() {}

    virtual sal_uInt32                              getCount() const;
    virtual const formula::IFunctionDescription*    getFunction(sal_uInt32 _nPos) const;
    virtual sal_uInt32                              getNumber() const;
    virtual const formula::IFunctionManager*        getFunctionManager() const;
    virtual ::rtl::OUString                         getName() const;
};
// =============================================================================
} // rptui
// =============================================================================

#endif //RPTUI_FUNCTIONHELPER_HXX