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#ifndef __SC_QUERYENTRY_HXX__
#define __SC_QUERYENTRY_HXX__

#include "address.hxx"
#include "global.hxx"

#include <vector>

namespace utl {
    class SearchParam;
    class TextSearch;
}

/**
 * Each instance of this struct represents a single filtering criteria.
 */
struct SC_DLLPUBLIC ScQueryEntry
{
    enum QueryType { ByValue, ByString, ByDate, ByEmpty };

    struct Item
    {
        QueryType     meType;
        double        mfVal;
        rtl::OUString maString;

        Item() : meType(ByValue), mfVal(0.0) {}

        bool operator== (const Item& r) const;
    };
    typedef std::vector<Item> QueryItemsType;

    bool            bDoQuery;
    SCCOLROW        nField;
    ScQueryOp       eOp;
    ScQueryConnect  eConnect;
    mutable utl::SearchParam* pSearchParam;       // if RegExp, not saved
    mutable utl::TextSearch*  pSearchText;        // if RegExp, not saved

    ScQueryEntry();
    ScQueryEntry(const ScQueryEntry& r);
    ~ScQueryEntry();

    // creates pSearchParam and pSearchText if necessary, always RegExp!
    utl::TextSearch* GetSearchTextPtr( bool bCaseSens ) const;

    QueryItemsType& GetQueryItems();
    const QueryItemsType& GetQueryItems() const;
    void SetQueryByEmpty();
    bool IsQueryByEmpty() const;
    void SetQueryByNonEmpty();
    bool IsQueryByNonEmpty() const;
    const Item& GetQueryItem() const;
    Item& GetQueryItem();
    void            Clear();
    ScQueryEntry&   operator=( const ScQueryEntry& r );
    bool            operator==( const ScQueryEntry& r ) const;

private:
    /**
     * Stores all query items.  It must contain at least one item at all times
     * (for single equality match queries or comparative queries).  It may
     * contain multiple items for multi-equality match queries.
     */
    mutable QueryItemsType maQueryItems;
};

#endif

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